Innovative Design and Machining Verification of a Dual-Axis Swivel Table for a Milling Machine

• Autorzy: Lin, Wei-Zhu , Xiao, Jian-Xuan , Lin, Yung-Chih , Chang, Bo-Wei , Hung, Jui-Pin
• Języki publikacji: EN

Abstrakty

EN

This study was aimed to develop a dual-axis rotary table for small and medium-sized five-axis milling machines. The rotation and tilting axis of swivel table were respectively driven by servo motor with gear reducer to achieve low speed, high torque, high rigidity and high precision machining capability. Essentially, the dynamic interaction between the work piece and the tool in the cutting process is an important factor that affects the machining performance, which also implies that the structural characteristics of the rotary table with the swiveling angle will affect the cutting performance of the five-axis machine. Therefore, at the design stage of a five-axis machine tool, it is a prerequisite to evaluate change of dynamic characteristics of the rotary module within the desired feeding range. To this purpose, this study employed the finite element method to analyze the dynamic characteristics of the rotary table under different configurations. In order to evaluate the application feasibility of the dual axis module on a milling machine, ISO S-shaped machining tests were carried out. Meanwhile, considering the influence of machining vibration on the surface quality of the work piece, the vibration induced at spindle tool and rotary table were assessed for comparisons and used to evaluate the variation of machining vibration with the milling cycles. Based on various experimental results, it is confirmed that the proposed dual-axis rotary table has good structural dynamic characteristics with stable vibration features during a small batch production tests. Current results clearly demonstrate the potential and capability of the proposed dual axis rotary table in practical application and commercialization.

Słowa kluczowe

EN

rotary table; dual-axis rotary table; dynamic characteristics; milling machine; five axis milling machine; machining stability

• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2024
• Tom: Vol. 18, no 1
• Strony: 306--319
• Opis fizyczny: Bibliogr. 24 poz., fig., tab.

Twórcy

autor

Lin, Wei-Zhu

• Department of Mechanical Engineering, National Chin-Yi University of Technology, Taiwan,

autor

Xiao, Jian-Xuan

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taiwan,

autor

Lin, Yung-Chih

• Green Technology Division, ITRI Central Region Campus, Industrial Technology Research Institute, Taiwan,

autor

Chang, Bo-Wei

• Department of Mechanical Engineering, National Chin-Yi University of Technology, Taiwan,

autor

Hung, Jui-Pin

• Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taiwan,

Bibliografia

• 1. Zhang, R., Wang, K., Shi, Y., Sun, X., Gu, F., Wang, T. The influences of gradual wears and bearing clearance of gear transmission on dynamic responses. Energies, 12(24), 2019, 4731.
• 2. Bai, Z., & Ning, Z. Dynamic responses of the planetary gear mechanism considering Dynamic wear effects. Lubricants, 11(6), 2023, 255.
• 3. https://www.cam-power.com/product-Zero-Backlash-Roller-Gear-Cam-RTB-Series.html. (Accessed on 08 June 2022).
• 4. https://www.cytec.de/en/products/rotary-tables/zero-point-clamping-system.html. (Accessed on 08 June 2022).
• 5. Li, F., Li, X., Guo, Y., Shang, D. Analysis of contact mechanical characteristics of flexible parts in harmonic gear reducer. Shock and Vibration, 2021, ID 5521320, 1-17.
• 6. Hung, J. P., Lin, W. Z. Investigation of the dynamic characteristics and machining stability of a bi-rotary milling tool. Advances in Science and Technology. Research Journal, 13(1), 2019, 14–22.
• 7. Huang, B., Wang, J., Tan, B., Zhao, J., Liu, K., & Wang, J. Analysis and optimization of dynamic and static characteristics of machining center direct-drive turntable. Applied Sciences, 12(19), 2022, 9481.
• 8. Fontaine, M., Devillez, A., Moufki, A., & Dudzinski, D. Modelling of cutting forces in ball-end milling with tool–surface inclination: part II. Influence of cutting conditions, run-out, ploughing and inclination angle. Journal of Materials Processing Technology, 189(1-3), 2007, 85–96.
• 9. Sun, C., Altintas, Y. Chatter free tool orientations in 5-axis ball-end milling. International Journal of Machine Tools and Manufacture, 106, 2016, 89–97.
• 10. Ozturk, E., Tunc, T. L., Budak, E. Investigation of lead and tilt angle effects in 5-axis ball-end milling processes, International Journal of Machine Tools and Manufacture,49, 2009, 1053–1062.
• 11. Wang, B., Geng, L., Zhang, Y.F., Liu, K., Ng, T.E. Chatter-free cutter postures in five-axis machining, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 230 (8), 2016, 1428–1439.
• 12. Li, J., Kilic, Z. M., and Altintas, Y. General cutting dynamics model for five-axis ball-end milling operations. Journal of Manufacturing Science and Engineering, 142(12), 2020, 121003.
• 13. Hung, J. P., Chen, Y. J. and Luo, T. L. Effect of tool orientation on the machining stability of a milling machine with swinging head, World Academy of Science, Engineering and Technology, 77, 2013, 958–964.
• 14. Cheng, Q., Xuan, D. S., & Liu, Z. F. Dynamic modal analysis of CNC precision rotary worktable. Advanced Materials Research, 179, 2011, 787–792.
• 15. Han L, Xu L, Wang F. Study on torsional stiffness of transmission employed in a rotary table. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 230(19), 2016, 3541–3555.
• 16. Wei W, Zhang J, Lu D, Zhao W. Effect of tilting angle on the dynamics of tilting table driven by worm and worm wheel. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 229(10), 2015, 1782–1791.
• 17. Du, C., Zhang, J., Lu, D., Zhang, H. and Zhao, W. Coupled model of rotary-tilting spindle head for pose-dependent prediction of dynamics, Journal of Manufacturing Science and Engineering, 140(8), 2018, 081008.
• 18. Application Note 243-3, The fundamentals of modal testing, Agilent Technologies, https://rotorlab.tamu.edu/me459/The Fundamentals Modal Testing.pdf (Accessed on 19. 06 Jan 2024)
• 20. Hu, Q., Li, H., Wang, G., & Li, L. Research on torsional stiffness of flexspline-flexible bearing contact pair in harmonic drive based on macro-micro scale modeling. Frontiers in Materials, 10, 2023, 1211019.
• 21. Hung, J.P., Lai, Y.L., Luo, T.L. and Su, H.C. Analysis of the machining stability of a milling machine considering the effect of machine frame structure and spindle bearings: experimental and finite element approaches, The International Journal of Advanced Manufacturing Technology, 68(9–12), 2013, 2393–2405.
• 22. DATORKER Strain Wave Gear, https://www.hiwin.tw/download/tech_doc/dswg /Datorker_Strain_Wave_Gear_DM-(E).pdf (Accessed on 15 May 2023).
• 23. ISO 10791-7: 2014/DAM 1. Test conditions for machining centres – Part 7: Accuracy of Finished Test Pieces. Amendment 1. International Organization for Standardization: Geneva, Switzerland, 2016.
• 24. Sato, R., Shirase, K., & Ihara, Y. Influence of NC program quality and geometric errors of rotary axes on S-shaped machining test accuracy. Journal of Manufacturing and Materials Processing, 2(2), 2018, 21.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).

Identyfikatory

DOI

10.12913/22998624/178528