한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제23권10호
  • /
  • Pages.113-120
  • /
  • 2006
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

고 정밀 캠 프로파일 CNC 연삭기의 구조설계 및 평가에 관한 연구

A Study on Structural Design and Evaluation of the High Precision Cam Profile CNC Grinding Machine

  • 임상헌 (창원대학교 기계설계공학과 대학원) ;
  • 신상훈 (창원대학교 기계설계공학과 대학원) ;
  • 이춘만 (창원대학교 기계설계공학과)
  • 발행 : 2006.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

A cam profile CNC grinding machine is developed for manufacture of high precision contoured cams. The developed machine is composed of the high precision spindle using boll bearings, the high stiffness box layer type bed and the three axis CNC controller with the high resolution AC servo motor. In this paper, structural and modal analysis for the developed machine is carried out to check the design criteria of the machine. The analysis is carried out by FEM simulation using the commercial software, CATIA V5. The machine is modeled by placing proper shell and solid finite elements. And also, this paper presents the measurement system and experimental investigation on the modal analysis of a grinding machine. The weak part of the machine is found by the experimental evaluation. The results provide structure modification data for good dynamic behaviors. And safety of the machine was confirmed by the modal analysis of modified machine design. Finally, the cam profile grinding machine was successfully developed.

키워드

참고문헌

  1. Hahn, R. S., 'On the Theory of Regenerative Chatter in Precision Grinding Operations,' Trans. ASME, Vol. 76, No.1, pp. 593-597, 1954
  2. Kim, H. S., Jeong, K. S. and Lee, D. G., 'Structural Design and Evaluation of the Three Axis Ultra-Precision CNC Grinding Machine,' Transaction of KSME, Vol. 19, No. 12, pp. 3392-3402, 1995
  3. Yamamoto, S., 'A Report of Cylindrical Grinding Machine for Non-Circle Manufacturing,' Monthly Mechanical Engineering, Vol. 29, No.4, pp. 74-81, 2004
  4. Staszewski, W., 'Wavelet Based Compression and Feature Selection for Vibration Analysis,' Journal of Sound and Vibration, Vol. 211, pp. 735-760, 1998 https://doi.org/10.1006/jsvi.1997.1380
  5. Lin, J. and Qu, L., 'Feature Extraction Based on Morlet Wavelet and Its Application for Mechanical Fault Diagnosis,' Journal of Sound and Vibration, Vol. 234, pp. 135-148, 2000 https://doi.org/10.1006/jsvi.2000.2864
  6. Week, M., 'Machine Tools,' John Wiley & Sons Vol. 2, pp. 129-157, 167-173, 203-205, 1984
  7. Park, C. W., 'Theory of Grinding Machining,' Science Technology, Korea, pp. 27-47, 2002
  8. Samick LMS CO., LTD.,'THK The Mark of Linear Motion(Catalog),' Samick LMS CO., LTD., pp. A166-A167, D-188-D-189, 2004
  9. Shigley, S. E. and Mischke, C. R., 'Mechanical Engineering Design,' McGraw-Hill Int'l Ed., pp. 479-523, 1989
  10. Slocum, A. H., 'Precision Machine Design, Prentice-Hall Inc.,' pp. 502-512, 589-625, 717-727, 1992
  11. Koenigsberger, F., 'Design Principle of Metal-Cutting Machine Tools,' The Macmillan Company, pp. 44-45, 1965
  12. Ehrich, F. F., 'Handbook of Rotor-dynamics,' McGraw-Hill, New York, 1992
  13. Choi, S. H., Kim, D. H. and Ahn, Y. M., 'Dynamic Analysis of External Cylindrical Grinding Considering Spindle and Workpiece Vibrations,' Journal of KSPE, Vol. 17, No.6, pp. 192-198, 2000
  14. Ji, G., Park, D. G., Chung, W. J. and Lee, C. M., 'Experimental Modal Analysis of Machining Centers,' Spring Annual Meeting of KSMTE, pp. 82-87, 2004