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Journal articles on the topic 'Thermal Processing of the Ball Screw'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Yue, Hong Xin, Yan Shi, and Yan Mei Xi. "Research on Thermal Error Compensation Technique of the Screw." Advanced Materials Research 482-484 (February 2012): 309–13. http://dx.doi.org/10.4028/www.scientific.net/amr.482-484.309.

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In the system of the machine tool, the position error is directly affected by the thermal deformation of ball screw. Screw system is a complex thermal system, which is affected by the processing conditions, the processing cycle, the use of cooling fluid, and the surrounding environment. Due to non-linear and interaction of the thermal error, a RBF network thermal error model is proposed in the paper and the model is tested in XHFA2420 large machining center.

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2

Liu, Jialan, Chi Ma, Shilong Wang, Sibao Wang, Bo Yang, and Hu Shi. "Thermal boundary condition optimization of ball screw feed drive system based on response surface analysis." Mechanical Systems and Signal Processing 121 (April 2019): 471–95. http://dx.doi.org/10.1016/j.ymssp.2018.11.042.

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3

Hung, Sheng Hao, and Chin Chung Wei. "Study of Thermal Expansion of a Vertical Motion Ball-Screw System Operated at High Rotational Speed." Key Engineering Materials 642 (April 2015): 307–10. http://dx.doi.org/10.4028/www.scientific.net/kem.642.307.

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A ball-screw system is widely used in high speed transmission platforms. High transmission speed brings high frictional force, heat and thermal expansion occurring on contact areas of ball, screw and nut. Positioning error of platform is affected by the thermal expansion during linear transmission. A vertical motion of ball-screw driving system was used for high speed transmission test. Thermal expansion of screw and positioning error were measured for discussion their effects. Cyclic vertical motion during a long transmission distance, 2 km, will integrate thermal heat to ball, screw and nut, thermal expansion of screw is also occurred. From experiments, temperature rising and thermal expansion of screw and nut were recorded and calculated for estimate elongation and positioning error of a vertical motion high speed ball-screw. Positioning error is not totally respected thermal elongation effects of screw and nut owing to contact forces caused by wear and thermal expansion at contact areas comparing to the heavy axial load is relative small in a vertical motion ball-screw system. Therefore, the structure stiffness is not affected significantly by thermal effect and wear.

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4

Wei, Chin Chung, Jeng Haur Horng, and Jen Fin Lin. "Thermal Analysis of a Ball-Screw System." Advanced Materials Research 591-593 (November 2012): 818–26. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.818.

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High speed ball-screw system has serious friction heat to form thermal expansion to each component. An analyzing model considering with contact deformation and thermal expansion is established in realizing positioning error for a high speed ball-screw system. A finite element model of nut is also built in calculating elongation of nut. Surface strain of nut is measured by strain gages in order to confirm with data obtained from finite element model. Temperature of nut and screw were also measured by thermal couples and are used in calculation of elongation by the use of linear elongation equation. The tendency of positioning error is well estimated by the analyzing model. The model can be used in feedback positioning control factor and develop precision high speed ball-screw system.

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5

KODERA, Takehiko, Kazuhiro YOKOYAMA, Kazuo MIYAGUCHI, Yutaka NAGAI, Takamasa SUZUKI, Masami MASUDA, and Takanori YAZAWA. "Real-Time Estimation of Ball-Screw Thermal Elongation Based upon Temperature Distribution of Ball-Screw." JSME International Journal Series C 47, no. 4 (2004): 1175–81. http://dx.doi.org/10.1299/jsmec.47.1175.

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6

Li, Zi Han, Kai Guo Fan, and Jian Guo Yang. "Analysis of the Thermal Behavior of a Ball Screw Based on Simulation and Experimental Investigation." Applied Mechanics and Materials 577 (July 2014): 140–44. http://dx.doi.org/10.4028/www.scientific.net/amm.577.140.

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Thermal expansion of ball screw system affects the machining accuracy of machine tools significantly. The objective of this paper is to analyze the thermal behavior and predict the temperature variation pattern of a ball screw based on finite element analysis and experimental investigation. Wireless temperature sensors are used to monitor the temperature variation of the ball screw system under different thermal conditions during both the warm-up and cooldown phases, so as to investigate its temperature variation pattern. Then an exponential algorithm is proposed to analyze and predict the temperature variation of the ball screw based on finite element analysis, and the actual thermal boundary conditions of the ball screw system are exactly defined according to the proposed algorithm and the experimental results. Finally, it was found that the simulation based on the thermal boundary conditions identified herein could match quite well with the experimental results.

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7

Kodera, T., K. Yokoyama, K. Miyaguchi, Y. Nagai, T. Suzuki, M. Masuda, and T. Yazawa. "315 Real-time Estimation of Ball-screw Thermal Elongation Based upon Temperature Distribution of Ball-screw." Proceedings of International Conference on Leading Edge Manufacturing in 21st century : LEM21 2003 (2003): 495–500. http://dx.doi.org/10.1299/jsmelem.2003.495.

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8

Wei, Chin Chung, Jui Chi Wang, and Yuan Lun Huang. "Thermal Displacement Analysis and Verification for Screw in a Vertical Transmission Double Nut Ball-Screw System." Applied Mechanics and Materials 883 (July 2018): 22–29. http://dx.doi.org/10.4028/www.scientific.net/amm.883.22.

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High speed transmission table is wildly used in industry and the demand is increased recently. High speed ball-screw device is a major component in the system. High speed transmission brings high friction and causes serious thermal displacement, especially in vertical transmission situation. Because the external load is become axial load applied on nut directly. Friction and wear became heavier on contact areas between ball and raceways, preload in ball-screw will thus be decreased speedily with operating time. The decrease of preload is also affect thermal rising rate and thermal displacement.The work of this paper is to establish a thermal elastic-viscous hydrodynamic lubrication (EHL) analysing model for friction calculation. Contact and friction forces of each contact area varying with operating conditions of ball-screw can be obtained as boundary conditions of FEM model, and theoretical results were well confirmed with surface temperature and displacement of screw. The aim of the study is useful in understanding thermal effect for a preloaded double nut ball-screw in vertical transmission.

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9

Gao, Qin, Guo, Wang, and Zan. "Adaptive Method to Reduce Thermal Deformation of Ball Screws Based on Carbon Fiber Reinforced Plastics." Materials 12, no. 19 (September 24, 2019): 3113. http://dx.doi.org/10.3390/ma12193113.

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Abstract: In high-speed precision machining, thermal deformation caused by temperature rise affects the accuracy stability of the machine tool to a significant extent. In order to reduce the thermal deformation of ball screws and improve the accuracy, a new adaptive method based on carbon fiber reinforced plastics (CFRP) was proposed in this study and the thermal deformation of ball screws was determined. By using the sequential coupling method, the thermal–structural coupling analysis of a ball screw was conducted based on the finite element method (FEM). The analysis results were verified through a comparison with the experimental results. Based on the verification, an FE model of the improved ball screw was established to study its thermal characteristics. The key design parameters of the improved ball screw were optimized based on the Kriging model and genetic algorithm (GA). The thermal reduction effect of the improved ball screw was validated through the experimental results. The results indicate that the adaptive method proposed in this research is effective in reducing the thermal deformation of ball screws.

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10

Gao, Xiangsheng, Kuan Zhang, Min Wang, Tao Zan, and Jiajun Luo. "Thermally stimulated artificial muscles: Bio-inspired approach to reduce thermal deformation of ball screws based on inner-embedded CFRP." REVIEWS ON ADVANCED MATERIALS SCIENCE 60, no. 1 (January 1, 2021): 541–52. http://dx.doi.org/10.1515/rams-2021-0047.

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Abstract Ball screws are the indispensable machine tool components and, as such, influence the positional accuracy of machine tools. The accuracy stability of machine tools is affected by thermal deformation of ball screws resulting from the increase in temperature. Inspired by the distinctive artificial muscle heat behavior, a bio-inspired ball screw was proposed. The proposed ball screw was based on the inner-embedded carbon fiber-reinforced plastic (CFRP), which restrains the axial expansion through the thermal contraction of CFRP. Additionally, a thermal conductor was mounted between the screw shaft and CFRP to improve the thermal conduction condition. Furthermore, both the simulation analysis and comparative experiments were carried out to compare the bio-inspired ball screw with the standard one. Two working conditions were considered to evaluate the effectiveness of the novel design, primarily in terms of reducing thermal deformation. Both results show that the proposed approach is effective and can be applied to reduce the thermal deformation of ball screws.

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11

Zhang, Lu-Chao, Yi Ou, and Hu-Tian Feng. "Prediction of the Thermal Elongation of the Ball Screw Mechanism under Various Rotational Speeds." International Journal of Precision Engineering and Manufacturing 22, no. 7 (May 26, 2021): 1221–28. http://dx.doi.org/10.1007/s12541-021-00535-9.

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AbstractIn numerical control machines, the thermal elongation of the ball screw influences the position accuracy. Different rotational speeds lead to different temperature changes at different positions in a ball screw system. In this paper, a new method is proposed to calculate the temperature rise of different positions when the ball screw is in the thermal equilibrium state. The thermal transmission of ball screws is analyzed, and the heat generation and transfer coefficient are calculated based on the laws of thermodynamics. The function between the temperature rise and position is built by solving the thermal equilibrium differential equations. The thermal elongation is obtained after the temperature rise is calculated. In order to prove the validity of this model, a series of detection tests are conducted to obtain the temperature rise of a ball screw and the thermal elongation under different rotational speeds. The experimental results show that the realistic temperature rise and the thermal elongation agree well with the theoretical values.

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12

Yang, A. S., S. Z. Chai, H. H. Hsu, T. C. Kuo, W. T. Wu, W. H. Hsieh, and Y. C. Hwang. "FEM-Based Modeling to Simulate Thermal Deformation Process for High-Speed Ball Screw Drive Systems." Applied Mechanics and Materials 481 (December 2013): 171–79. http://dx.doi.org/10.4028/www.scientific.net/amm.481.171.

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Along with increasing speed and acceleration of numerically controlled machine tools, the influence of thermal dynamics characteristics on operating accuracy becomes more and more important. Improvement of thermal dynamics characteristics has turned out to be one of the crucial problems to develop machine tool of high performance. The positioning error of a feed drive system, mostly caused by the thermal deformation of a ball screw shaft, can directly affect the working accuracy of the machine tool. In this study, we applied the computational approach using the finite element method (FEM) to simulate the thermal expansion process for estimating the deformation of the ball screw system. In the numerical analysis, the deformation of the ball screw shaft and nut was modeled via a linear elasticity approach along with the assumption that the material was elastic, homogeneous, and isotropic. To model the reciprocating motions of the nut at a speed of 60m/min respecting to the screw shaft, we utilized the three-dimensional unsteady heat conduction equation with the frictional heat from the sources of the ball screw shaft, nut and bearings to calculate the temperature distributions for determining the temperature rises and axial thermal deformations in a ball screw shaft under operating situations. Simulations were conducted to explore the connection between the temperature increase of nut and the thermal deformation of the ball screw drive system, revealing the need of a compensation scheme for thermal error to improve the operating accuracy of machine tools.

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13

Xu, Zhe Zhu, Qi Zhang, and Sung Ki Lyu. "Improvement of Positioning Error on a Ball Screw by Cooling System." Applied Mechanics and Materials 86 (August 2011): 752–55. http://dx.doi.org/10.4028/www.scientific.net/amm.86.752.

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A high speed ball screw system generates more heat naturally and resultant more thermal expansion, which adversely affects the accuracy of positioning. Therefore, an air cooling system was set in ball screw shaft in this paper to dominate the thermal error and achieve temperature equilibrium faster. In order to estimate the thermal error of ball screw system and effectiveness of air cooling system, thermal behavior models of finite element method and modified lumped capacitance method were developed separately which includes the heat generation power of the main heat source of the ball screw system and other boundary conditions. The completed models were used to simulate the temperature distribution, thermal deformation and air cooling performance. Compared with experiments, it is shown that these methods can well predict the air cooling performance.

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14

Ma, Chi, Jun Yang, Xue Song Mei, Liang Zhao, Hu Shi, and Dong Sheng Zhang. "Dynamic Thermal-Structure Coupling Analysis and Experimental Study on Ball Screw Feed Drive System of Precision Machine Tools." Applied Mechanics and Materials 868 (July 2017): 124–35. http://dx.doi.org/10.4028/www.scientific.net/amm.868.124.

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To improve the simulation accuracy of the thermal characteristic of ball screw feed drive systems, a dynamic thermal-structure coupling model, which considered the effect of the thermal contact conductance (TCC) of the solid joint on the accuracy of simulation results, was proposed to conduct thermal characteristic analysis of ball screw feed drive systems. The predictive model for TCC was proposed based on the micro morphology description of rough surfaces and the contact load distribution of solid joints. Then, the dynamic thermal-structure model of the ball screw feed drive system was established. To validate the effectiveness of the dynamic thermal-structure coupling model, thermal characteristic experiments of the ball screw feed drive system were conducted under different feed rates. The results showed that the simulation accuracy of temperature field and axial thermal elongation can be improved from 65% to 87% and from 70% to 85%, respectively.

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15

Zhang, Lu-Chao, and Li Zu. "A new method to calculate the friction coefficient of ball screws based on the thermal equilibrium." Advances in Mechanical Engineering 11, no. 1 (January 2019): 168781401882073. http://dx.doi.org/10.1177/1687814018820731.

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Based on the theory of thermal transmission, this article provides a new method to acquire the friction coefficient in ball screw mechanism. While the screw is in thermal equilibrium, the heat absorption is equal to the heat dissipation. The heat absorption is able to be achieved by calculating the heat energy due to the friction at the contact area and the heat dissipation can be calculated by the law of thermodynamics. When the temperature rise is determined, the heat dissipation can be obtained and the friction coefficient in ball screw mechanism can be calculated further. In order to confirm the validity of this method, a measuring system is constructed to obtain the temperature rise of ball screws. The experimental results show that the temperature rise has the same tendency with the theoretical values depending on this model. Therefore, it can be exploited to predict the temperature rise of ball screws in the rated life cycle when the ball screw is under the condition of thermal equilibrium. Furthermore, this model can be used to evaluate the mechanical efficiency, which is an important parameter for the performance of the ball screw.

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16

Xu, Zhe Zhu, Xiao Jing Liu, In Bum Lee, In Shup Ahn, and Sung Ki Lyu. "A Study on Heat Generation Control of a Precision Ball Screw Drive System." Advanced Materials Research 680 (April 2013): 360–63. http://dx.doi.org/10.4028/www.scientific.net/amr.680.360.

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In this paper, a novel/well designed high speed/high precision nut air cooling ball screw system was developed to avoid thermal errors which affect the positioning accuracy and the temperature rise of ball screw. In order to discuss the effectiveness of the developed high speed/high precision nut air cooling ball screw system, a series of tests was done. As the results, it shows that the positioning accuracy will significantly improve with the use of the nut air cooling ball screw drive system shown in this paper.

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17

Tsai, P. C., C. C. Cheng, and Y. C. Hwang. "Ball screw preload loss detection using ball pass frequency." Mechanical Systems and Signal Processing 48, no. 1-2 (October 2014): 77–91. http://dx.doi.org/10.1016/j.ymssp.2014.02.017.

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18

Zhang, Jun, Bo Li, Changxing Zhou, and Wanhua Zhao. "Positioning error prediction and compensation of ball screw feed drive system with different mounting conditions." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 230, no. 12 (December 2016): 2307–11. http://dx.doi.org/10.1177/0954405416679444.

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For semi-closed-loop computer numerical control machine tool, the pitch error of screw caused by thermal expansion can deteriorate the positioning accuracy of ball screw feed drive system. This study presents different prediction models for positioning error of ball screw feed drive system based on the mounting condition, where the total error is separated into geometric error and thermal error. The coefficients in the model are identified using the multiple linear regression method. The prediction model is validated and the error compensation is also done for the X axis of a three-axis computer numerical control milling machine. The test results show that the model developed can well predict the thermal error under any given temperature as well as position during the temperature rising process of ball screw, and it can greatly improve the system positioning accuracy through compensation.

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19

Tao, Li. "Researching on the Selection and Verification of Ball Screw Pair Based on Reforming of CNC Lathe." Applied Mechanics and Materials 703 (December 2014): 167–70. http://dx.doi.org/10.4028/www.scientific.net/amm.703.167.

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Numerical control reform of ordinary lathe has the advantages of economy, practicality and stability. In order to ensure the accuracy of the feed system, vertical screw pair must be exchanged for a ball screw pair. The processing precision of the work piece can be guaranteed. Combined with the practice, this paper discusses the ball screw pair selecting in the reforming process of NC lathe. And the aspects of its size, precision, bearing capacity is checked.

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20

Zapłata, J. "Measurements of Temperature of CNC Machine Tool Ball Screw Utilising IR Method." International Journal of Applied Mechanics and Engineering 22, no. 3 (August 1, 2017): 769–77. http://dx.doi.org/10.1515/ijame-2017-0049.

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AbstractIn numerous papers it is proposed to use IR measurements of feed axis ball screw temperature distribution in order to compensate CNC machine tool thermal errors. The paper aims to validate reliability of the IR measurements in application to the feed axes ball screws. The identification of key factors influencing the accuracy of the IR measurements of ball screw temperature distribution has been conducted. A test-bench utilizing a ball screw assembly with built-in temperature sensors was introduced and the experimental data are presented along with conclusions.

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KOSAKA, Takashi, Kazuhiro YOKOYAMA, Koji SAITO, and Takamasa SUZUKI. "Improvement of Estimation Accuracy on Thermal Elongation of Ball-screw." Journal of the Japan Society for Precision Engineering, Contributed Papers 71, no. 12 (2005): 1525–30. http://dx.doi.org/10.2493/jspe.71.1525.

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22

Wang, Haitong, Fuhua Li, Yonglin Cai, Yueming Liu, and Yuwei Yang. "Experimental and theoretical analysis of ball screw under thermal effect." Tribology International 152 (December 2020): 106503. http://dx.doi.org/10.1016/j.triboint.2020.106503.

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23

Navarro y de Sosa, Iñaki, André Bucht, Tom Junker, Kenny Pagel, and Welf-Guntram Drossel. "Novel compensation of axial thermal expansion in ball screw drives." Production Engineering 8, no. 3 (January 28, 2014): 397–406. http://dx.doi.org/10.1007/s11740-014-0528-0.

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24

JEDRZEJEWSKI, Jerzy, Zbigniew KOWAL, Wojciech KWASNY, and Zdzislaw WINIARSKI. "Ball screw unit precise modelling with dynamics of loads and moving heat sources taken into account." Journal of Machine Engineering 19, no. 4 (December 20, 2019): 27–41. http://dx.doi.org/10.5604/01.3001.0013.6228.

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This paper deals with the precision modelling of the ball screw unit’s thermal behaviour in the turning centre and its impact on the tool head positioning error. The error components along controllable axes X and Z are described in detail using an FE model integrating the changes in thermal and force loads and deformations occurring during the motion of the nut as a heat source. The impact of the nut work cycle on the thermal deformations of the ball screw and the displacements of the slideways and the screw points along both the axes and on carriage positioning precision is demonstrated.

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25

Zhao, Leilei, Hutian Feng, and Qianfeng Rong. "A novel non-contact measuring system for the thread profile of a ball screw." Mechanical Sciences 9, no. 1 (January 9, 2018): 15–24. http://dx.doi.org/10.5194/ms-9-15-2018.

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Abstract. In order to meet the demand of high position accuracy, many methods have been developed for measuring the thread profile features of ball screws. However, most of these efforts are limited to measuring a small number of ball screw features and therefore less efficient. In this study, an automatic, non-contact measuring system for the thread profile of a ball screw was developed. It is capable of measuring most common features of the ball screw thread profile and can measure ball screws of different sizes and lengths. The main part of the system is the light curtain which has a high-resolution line-scan CCD camera to measure the projected outer contour of the target. Data points from the thread profile of a ball screw were collected by the measuring system and data pre-processing was performed. Then, the proposed method was used to calculate the most important geometric parameters and errors of the thread profile. The accuracy of the measuring system was verified by testing and evaluating four sets of ball screws from different manufacturers.

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26

Haung, Yi, and Chin Chung Wei. "The Study of Thermal Raising and Transmission Torque of High Speed Ball-Screw Lubricated by Different Greases." Key Engineering Materials 642 (April 2015): 212–16. http://dx.doi.org/10.4028/www.scientific.net/kem.642.212.

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Ball screw is a high-precision and high performance linear drive of mechanical elements. The frictional heat of internal components what is very significant impact for platform transmission in high speed and the high axial load and causes the thermal expansion of element. In this research , the influence of different greases on ball screw is investigated in thermal rising of nut and driving torque in high speed and high axial load. A vertical motion platform was used for driving performance test. Thermal rising of nut of ball screw and the variance of transmission torque whose lubricated by high viscosity base oil grease is significant larger than the lower one. High viscosity grease is not easy to carry out the friction heat generated at ball and raceway contact area due to the bad flowing properties. It also has more serious wear occurred at contact area and high friction force, whose causes the large variance of transmission torque.

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27

Li, Yang, Dongxu Su, Xin Cai, Wenwu Wu, Jun Zhang, and Wanhua Zhao. "Temperature simulation and thermal equilibrium analysis of the ball screw feed drive system under various working conditions." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 24 (June 2, 2020): 4844–56. http://dx.doi.org/10.1177/0954406220929051.

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As one of the most important part of the machine tool, thermal behaviors of the ball screw feed drive system has great effect on the positioning accuracy and machining accuracy. Finite element method is widely used for simulating the temperature of the ball screw under various working conditions. In this paper, in order to improve the simulation accuracy, the moving heat loads are considered in the finite element model, and the response surface methodology is proposed to optimize the boundary conditions. The correctness and effectiveness of the method are verified by experimental data. In addition, according to the temperature simulation results of the ball screw feed drive system, thermal equilibrium is defined and the factors which have influenced on it are analyzed.

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28

Horng, Jeng-Haur, Shin-Yuh Chern, Chi-Lin Li, and Yang-Yuan Chen. "Surface temperature and wear particle analysis of vertical motion double-nut ball screws." Industrial Lubrication and Tribology 69, no. 6 (November 13, 2017): 952–62. http://dx.doi.org/10.1108/ilt-10-2016-0244.

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Purpose This paper aims to investigate the temperature and wear properties of vertical ball screws and to discuss the surface design of ball screws in industrial applications. Design/methodology/approach The energy equation of the screw surface considering the frictional heat was established to verify the surface temperature of the ball screw. X-ray diffraction was used to examine the micro-contact temperature between the ball and screw. Debris size and density were examined to investigate wear properties of ball screws and to study the relationship of wear debris and temperature. Findings First, the main energy source for the surface temperature of high speed vertical ball screws is derived from friction force between ball and screw. Second, the temperature rise between the ball and screw has great relevance with wear debris concentration. Third, the surface temperature of the screw is higher than between the nut and ball for high speed vertical ball screws due to high convection heat transfer. The contact temperature of the nut near the flange is smaller than that of the nut away from the flange end due to the high contact load and thermal conduction. Finally, correlation of particle size and surface roughness value for vertical ball screws was established, and its effects on contact temperature were studied. The theoretical analysis and experiments will help to characterize the design and manufacture of vertical ball screws. Originality/value The surface temperature and micro-contact temperature analytical model were established to study the ball screw design. Based on the surface-particle micro-contact temperature balance, the optimal range of surface roughness was designed for vertical ball screws, considering the wear debris and micro-contact temperature.

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Min, X., and S. Jiang. "A thermal model of a ball screw feed drive system for a machine tool." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 225, no. 1 (January 1, 2011): 186–93. http://dx.doi.org/10.1177/09544062jmes2148.

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The feed drive system is a major heat source of machine tools, which results in considerable thermal drift at the tool. Therefore, there is a need to establish a scientific and systematic model that can be used to predict the temperature distribution of the feed drive system. In this research, considering the thermal contact resistance between the bearing and its housing, an integrated thermal model has been developed by the aid of the finite-element method to analyse the temperature distribution of a ball screw feed drive system, in particular the theoretical determination of power losses caused by the friction in ball screw pair, rolling bearings, and guide ways. Thermal boundary conditions including the convective heat transfer coefficients and heat flux have been obtained using the Fourier's law. Results reveal that the ball screw shaft surface has a uniform temperature rise of 4.2 °C under a given condition. The temperature rise agrees with the data obtained by an infrared thermometer.

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30

Zhao, Jia-Jia, Ming-Xing Lin, Xian-Chun Song, and Nan Wei. "Coupling analysis of the fatigue life and the TEHL contact behavior of ball screw under the multidirectional load." Industrial Lubrication and Tribology 72, no. 10 (July 4, 2020): 1285–93. http://dx.doi.org/10.1108/ilt-03-2020-0097.

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Purpose This paper aims to provide thermal elastohydrodynamic lubrication (TEHL) contact model to study all balls’ lubrication performance of the ball screw when the multidirectional load is applied. Design/methodology/approach A new TEHL contact model combining the multidirectional load and the roughness surface texture is established to describe fatigue life of the ball screw. Meanwhile, the authors use the Reynolds equation to study the lubrication performance of the ball screw. Findings When the multidirectional load is applied, contact load, slide-roll ratio and entrainment velocity of all balls have a periodic shape. The TEHL performance values at the ball-screw contact points including contact stress, shear stress, minimum film thickness and temperature rise are higher than that at the ball-nut contact points. The TEHL performance values increase with the increase of root mean square (RMS) except for the film thickness. In addition, the radial load of the ball screw has a significant effect on the fatigue life. Originality/value The results of the studies demonstrate the new TEHL contact model that provides the instructive significance to analyze the fatigue life of the ball screw under the multidirectional load. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2020-0097/

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31

Min, Bog-Ki, Chun-Hong Park, and Sung-Chong Chung. "Thermal Analysis of a Ball Screw by ADI Finite Difference Method." Transactions of the Korean Society of Mechanical Engineers - A 42, no. 11 (November 30, 2018): 975–84. http://dx.doi.org/10.3795/ksme-a.2018.42.11.975.

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32

Junyong, Xia, Hu Youmin, Wu Bo, and Shi Tielin. "Research on thermal dynamics characteristics and modeling approach of ball screw." International Journal of Advanced Manufacturing Technology 43, no. 5-6 (September 16, 2008): 421–30. http://dx.doi.org/10.1007/s00170-008-1723-y.

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33

Gao, Xiangsheng, Yueyang Guo, Min Wang, and Tao Zan. "Further study on thermal deformation reduction for CFRP-based improved ball screws." Advanced Composites Letters 29 (January 1, 2020): 2633366X2091798. http://dx.doi.org/10.1177/2633366x20917981.

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To determine the thermal deformation of ball screw in actual working condition, a novel method for determining thermal deformation of ball screws in complicated working condition is proposed based on G-code and finite-element (FE) method. In the complicated working condition, it is difficult to obtain and import the nut movement into FE model due to the complex nut movement. In this research, the nut movement is directly determined from G-code by MATLAB code programming. The nut location is recorded with time in a file. The thermal parameters can be determined according to the nut speed with time as well. In the implicit FE analysis, the nut location is read from the input file instead of nut location calculation before every time step. And then, the effect of factors, such as working condition and materials, on thermal deformation reduction of ball screw is studied. The thermal deformation reduction of ball screws under different rotational speed, actual working condition, and different axial elastic modulus of composites is discussed, which can provide the guidelines to evaluate the thermal deformation reduction and design the composite in improved ball screws.

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Liang, Rui Jun, Wen Hua Ye, Qun Qiang Chen, and Xin Jie Zhao. "The Thermal Characteristics of the Ball Screw Feed System on a Gantry Machine Tool." Applied Mechanics and Materials 490-491 (January 2014): 1008–12. http://dx.doi.org/10.4028/www.scientific.net/amm.490-491.1008.

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With the increasing of machine tool feed speed, a large quantity of friction heat is generated on the ball screw system and will cause the temperature rising and thermal deformation along the ball screw that reduces the machining accuracy. The heat accumulated and dissipated are calculated to load to the established model of the Y feed system on a gantry machine tool. The stable temperature field at thermal equilibrium and the unstable temperature field before thermal equilibrium or with the variation of thermal load are gotten. From thermal structure analysis, the thermal deformation is derived. The FEM model is verified by the experiments carried out under the same condition with the simulation.

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35

Kowal, Michał. "Sensorless compensation system for thermal deformations of ball screws in machine tools drives." Archives of Mechanical Technology and Materials 36, no. 1 (December 1, 2016): 1–6. http://dx.doi.org/10.1515/amtm-2016-0001.

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Abstract The article presents constructional, technological and operational issues associated with the compensation of thermal deformations of ball screw drives. Further, it demonstrates the analysis of a new sensorless compensation method relying on coordinated computation of data fed directly from the drive and the control system in combination with the information pertaining to the operational history of the servo drive, retrieved with the use of an artificial neural networks (ANN)-based learning system. Preliminary ANN-based models, developed to simulate energy dissipation resulting from the friction in the screw-cap assembly and convection of heat are expounded upon, as are the processes of data selection and ANN learning. In conclusion, the article presents the results of simulation studies and preliminary experimental evidence confirming the applicability of the proposed method, efficiently compensating for the thermal elongation of the ball screw in machine tool drives.

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36

Li, Yan Feng, Jian Song, Shao Hui Liu, and Xian Chun Song. "Temperature Field Simulation of Ballscrew Whirlwind Milling." Advanced Materials Research 591-593 (November 2012): 588–92. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.588.

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Ball screw is the key parts of NC machine, precise instrument and many kinds of mechanical devices. Whirlwind milling is a new and effective thread manufacture technology. This article studies the internal heat conduction equation of whirlwind milling ball screw based on Heat Transfer, calculates ANSYS simulation result. The simulation results show that the surface temperature distribution rule and internal temperature distribution rule of a ballscrew is consistent. The article analyzes the influence factors of the thermal elongation. It provides a basis for compensating the thermal deformation error of whirlwind milling ballscrew.

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37

Li, Tie-jun, Chun-yu Zhao, and Yi-min Zhang. "Adaptive on-line compensation model on positioning error of ball screw feed drive systems used in computerized numerical controlled machine tools." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 233, no. 3 (January 23, 2018): 914–26. http://dx.doi.org/10.1177/0954405417752512.

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The positioning error of ball screw feed systems is mainly caused by thermal elongation of the screw shaft in machine tools. In this article, an adaptive on-line compensation method of positioning error for the ball screw shaft is established. In order to explore the thermal–solid mechanism of ball screw feed drive systems, the experiments were carried out. An exponential fitting equation is presented to obtain the temperature relationship between the temperature sensitive point and its center of each heat source based on the finite element method of the feed drive system. Consequently, based on time and position exponential distribution functions, a variable separation model of heat transfer is established. Furthermore, based on the heat transfer model of multiple varying and moving heat sources, an adaptive on-line analytical compensation model of positioning error is presented. Finally, the effect of the adaptive on-line analytical compensation model of positioning error is verified through the experiments. And, this model has self-adaptive ability and robustness. Therefore, this adaptive on-line analytical compensation model based on the heat transfer theory can be applied in real-time compensation of positioning error.

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38

Zapłata, Jacek, and Mirosław Pajor. "Piecewise compensation of thermal errors of a ball screw driven CNC axis." Precision Engineering 60 (November 2019): 160–66. http://dx.doi.org/10.1016/j.precisioneng.2019.07.011.

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Kowal, Zbigniew, Taeweon Gim, and Jerzy Jedrzejewski. "Precision of prestressed ball screw thermal behaviour in machine tool operating conditions." International Journal of Nanomanufacturing 1, no. 1 (2019): 1. http://dx.doi.org/10.1504/ijnm.2019.10017383.

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Kowal, Zbigniew, Jerzy Jedrzejewski, and Taeweon Gim. "Precision of prestressed ball screw thermal behaviour in machine tool operating conditions." International Journal of Nanomanufacturing 16, no. 1 (2020): 29. http://dx.doi.org/10.1504/ijnm.2020.104478.

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41

KODA, Seido, Teiji MURATA, Kanji UEDA, and Tadaaki SUGITA. "Automatic compensation of thermal expansion of the ball screw in machining centers." Transactions of the Japan Society of Mechanical Engineers Series C 56, no. 521 (1990): 154–59. http://dx.doi.org/10.1299/kikaic.56.154.

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42

Ibaeva, L. V., and Yu M. Orlov. "The influence of ball screw drive positioning errors on the accuracy of part manufacturing." Glavnyj mekhanik (Chief Mechanic), no. 4 (April 22, 2021): 40–52. http://dx.doi.org/10.33920/pro-2-2104-04.

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The article considers the components of the total error of mechanical processing that occur when positioning the working units of the machine: ball screw drive elements. The reasons for the loss of positioning accuracy of the machine drives are described. The accuracy of the positioning of the machine spindle in determining the axes of the holes to be processed is analyzed. The numerical estimation of the values of the errors of the temperature deformations of the lead screw is carried out on the example of drilling holes in the workpiece. The causes of heating of the ball screw drive of the machine are identified. The dependence of the unit heating on the speed of movement of the operating elements of the machine is described. The optimal trajectory of the tool movement when processing holes in the workpiece is presented. The criterion of optimality of this trajectory is described. The values of the deviations of each hole in the workpiece from the specified accuracy of their location are obtained. The scheme of accumulation of errors of linear displacements resulting from the temperature deformation of the lead screw of the CNC machine drive is presented. The value of the accumulated total error of the temperature deformations of the ball screw pair is obtained. The error associated with the movement of the machine drive carriage is considered. The geometric characteristics of the carriage orientation are given. The schemes of occurrence of the error caused by the change of the roll angle and the carriage tilt angle are presented. The maximum axial load of the lead screw at translational acceleration is calculated. The scheme of possible carriage deflection under the action of the maximum translational force of a ball screw pair is presented. The numerical estimation of the maximum possible roll angle of the carriage, as well as the maximum deviation from the specified accuracy of the carriage, at the maximum load on the lead screw, is carried out. As a result, it is concluded that the total error of the machine drives positioning can go beyond the tolerances of the linear dimensions of the processed holes, which significantly affects the accuracy of the part manufacturing.

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43

Liu, Jialan, Chi Ma, and Shilong Wang. "Precision loss modeling method of ball screw pair." Mechanical Systems and Signal Processing 135 (January 2020): 106397. http://dx.doi.org/10.1016/j.ymssp.2019.106397.

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44

Oyanguren, Aitor, Ibai Ulacia, Jon Larrañaga, Angel Gallo, Aitor Arana, and Roberto González. "Prediction of Heat Generation and Temperature Distribution in High Speed Preloaded Ball Screws." Key Engineering Materials 572 (September 2013): 363–66. http://dx.doi.org/10.4028/www.scientific.net/kem.572.363.

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The general trend in the field of machine tools is to increase the speed of feed axes with the aim of reducing manufacturing times, high speed machining is a significant example of such increase. Ball screws have proven their ability to fulfill requirements of workpiece positioning accuracy, nevertheless, the heat generated in the screw-nut interaction increases proportionally with the speed of the axes. As a result, an increase in temperature takes place, which causes thermal expansion of the ball screw, producing positioning errors and decreasing the service life of the ball screws, therefore it is important to have effective methods for predict the temperature.The main objective of the present work is to predict the heat generated in the screw-nut contact based on analytical models in order to estimate the temperature distribution in the nut. For this purpose a heat transfer FE model of a preloaded high speed ball screw nut has been developed. Additionally, experimental heating tests have been performed to validate the FE numerical model. In this way, the temperature predictions obtained at different working conditions have less than 6% of deviation comparing with the experimental results.

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45

Ehrmann, Christopher, and Stefan Herder. "Integrated Diagnostic and Preload Control for Ball Screw Drives by Means of Self-Sensing Actuators." Advanced Materials Research 769 (September 2013): 271–77. http://dx.doi.org/10.4028/www.scientific.net/amr.769.271.

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Piezoelectric ceramics can be used as sensors, as well as actors. The concept of a self- sensing-actuator tries to use both modes of operation in one device, allowing the economic integration of mechatronic systems. Possible fields of application are ball screws of machine tools, where wear-induced degradation of the preload can be compensated. Furthermore, the signal processing part of such a system can be used to gather information related to the condition of the ball screw. Both excitation signal generation and filtering of the measured signal have to offer high flexibility and signal fidelity. In this article the concept of a power amplifier and its corresponding signal processing system are presented.

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Diao, Xi Lian. "Round Head Screw Axis NC Machining Process Analysis." Advanced Materials Research 912-914 (April 2014): 761–64. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.761.

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The ball screw shaft part of the shaft is typical of one of the parts is difficult to process, the current CNC machining parts with high precision is required to solve such a circular arc surface, the most effective processing tapered threaded surface and the cylindrical surface methods. Aiming at the characteristics of round threaded shaft, analyzed the methods and procedures CNC lathe machining parts, and gives a complete NC program. Program is produced in Dalian CKA6132 CNC lathe written.

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47

Wang, Yu, Wei Guo Gao, Da Wei Zhang, and Zhen Hong Sun. "Experimental Investigation on Thermal Characteristics of Hollow Ball Screw in Different Working Conditions." Advanced Materials Research 690-693 (May 2013): 3266–70. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.3266.

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The text takes Z-Axis of precision machine tool as study object, and proceed the thermal character's experiment of Z-Axis feed system in different working condition (different Cooling strategy, different Feeding speed, load or not). The data of experiment shows the higher of the feed speed, the more heat is generated. Position accuracy can be increase by apply the right load and load is nearly none business with temperature rise. Cooling strategy is nearly none business with temperature rise and may cause the discretization of position accuracy.

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48

LI Xing-fei, 李醒飞, 董成军 DONG Cheng-jun, 陈诚 CHEN Cheng, 吴腾飞 WU Teng-fei, and 谭文斌 TAN Wen-bin. "Temperature model of ball screw and its thermal error prediction under single heat." Optics and Precision Engineering 20, no. 2 (2012): 337–43. http://dx.doi.org/10.3788/ope.20122002.0337.

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49

Pajor, Mirosław, and Jacek Zapłata. "Intelligent Machine Tool – A Thermal Diagnostic System for a CNC Pretensioned Ball Screw." Solid State Phenomena 220-221 (January 2015): 491–96. http://dx.doi.org/10.4028/www.scientific.net/ssp.220-221.491.

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The paper presents a compensation system of thermal deformation for conventional feed axes applied in CNC machine tools allowing for an effective reduction in the impact of heat generated during its operation on the positioning accuracy of the axis. The result has been achieved by equipping feed screws with thermistor temperature sensors. Wiring sensors was led out through an axial bore in the screw and through a rotating electrical connector to an acquisition device coupled with the control system of the CNC machine. An algorithm based on neural networks was implemented in the machine control system, which allows for the online calculation and compensation of heat deformation of feed screws. The algorithm takes into account a variation of thermal deformation values as a function of the table position and the current distribution of the temperature field of the screw and machine. The paper presents a user-friendly method for implementing algorithms containing neural networks in the machine control system. The proposed compensation method has been verified by measuring the linear accuracy of the feed axis positioning. The obtained results confirm the effectiveness of the proposed method in reducing the impact of thermal deformation errors on the positioning accuracy of the axis in CNC machine tools.

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50

Xu, Z. Z., X. J. Liu, H. K. Kim, J. H. Shin, and S. K. Lyu. "Thermal error forecast and performance evaluation for an air-cooling ball screw system." International Journal of Machine Tools and Manufacture 51, no. 7-8 (July 2011): 605–11. http://dx.doi.org/10.1016/j.ijmachtools.2011.04.001.

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