Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
권호 표지
DOI QR코드

DOI QR Code

Correlation between Unbalance Variation and Cutting Surface Condition of Roller Bearing-Structured Main Spindles

롤러베어링 구조형 주축 회전체의 언밸런스 변동과 절삭표면상태 연관성에 관한 연구

  • Ha, Jeong-ung (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Park, Dong-hui (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Park, Hwang-gi (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Jeon, Seung-min (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Hong, Jin-pyo (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Yoon, Sang-hwan (Graduate School of Advanced Defense Engineering, Changwon National University) ;
  • Park, Jong-kyu (Graduate School of Advanced Defense Engineering, Changwon National University)
  • 하정웅 (창원대학교 대학원 첨단방위공학) ;
  • 박동희 (창원대학교 대학원 첨단방위공학) ;
  • 박황기 (창원대학교 대학원 첨단방위공학) ;
  • 전승민 (창원대학교 대학원 첨단방위공학) ;
  • 홍진표 (창원대학교 대학원 첨단방위공학) ;
  • 윤상환 (창원대학교 대학원 첨단방위공학) ;
  • 박종규 (창원대학교 대학원 첨단방위공학)
  • Received : 2020.06.24
  • Accepted : 2020.07.28
  • Published : 2020.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

The rotation accuracy of the main spindle that determines the accuracy of CNC machine tools is closely related to the quality of production because it directly affects the shape error and surface roughness of the workpiece. Therefore, the main spindle requires high rotation accuracy, rigidity, and rotation technology. This rotation accuracy is greatly affected by the bearing, center alignment between rotating parts, assembly tolerance, and unbalance of the rotation mass. In this study, the effects of the unbalance of the rotation mass of the main spindle on the rotation accuracy were investigated experimentally. In particular, we tried to study the technical reasons for improving the unbalance of the main spindle and maintaining the rotation accuracy as we verified the correlation between the vibration characteristics of CNC machine tools due to the specifically set unbalance amount and the surface roughness of the workpiece.

Keywords

References

  1. Kim, J. H., "Rotating accuracy estimating model verification of high speed spindle with angular contact ball bearing", A Thesis for a Master, Pusan National University, Republic of Korea, 2014.
  2. Lee, K. B., "Roughness Measurement of SM20C Surface Machined by End-milling", A Thesis for a Master, Kyungnam University, Republic of Korea, 2007.
  3. Oh, S. K., "A study on the Surface Roughness in End-mill Machining of Aluminum Alloy(KSD 6061) for the Automobile Parts", A Thesis for a Master, Nambu University, Republic of Korea, 2013.
  4. Lee, B. S., Vibration and Maintenance Handbook of Rotary Machinery, Korea Electric Power Corporation, pp. 1379-1384, 1998.
  5. "Characteristic of End Mill"(2008), https://tooling.tistory.com/entry (accessed 9, Dec., 2019)
  6. Yoon, S. H., Moon, S. M., Lyu, S. K., "A Study on Monitoring Drilling using Torque from Main Spindle Based on PLC in CNC Machine Tools", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 17, No. 3, pp. 7-15, 2018. https://doi.org/10.14775/ksmpe.2018.17.3.007