초고속 태핑머신 개발 및 평가

Development and Evaluation of Ultra High-Speed Tapping Machine

  • 김선호 (한국기계연구원 지능형정밀기계연구부) ;
  • 김동훈 (한국기계연구원 지능형정밀기계연구부) ;
  • 김선민 (광주과학기술원 기전공학과) ;
  • 이돈진 (부산대학교 대학원 기계공학과) ;
  • 이선규 (광주과학기술원 기전공학과) ;
  • 안중환 (㈜코마텍 기술연구소) ;
  • 이상규 (㈜코마텍 기술연구소)
  • 발행 : 2002.11.01

초록

Tapping is a machining process that makes a female screw on parts to be assembly together. Recently, as the number of small and compact products increases the radius of tap as small as 1 mm is not unusual and more accurate tapping is needed. In complying with those needs, some high-speed tapping machines with synchronizing function have been developed. This paper describes the development of an ultra high-speed tapping machine up to 10,000rpm. The key factors in the tapping speed are the acceleration/deceleration and the synchronizing errors between spindle motor and fred motor. To minimize the acceleration/deceleration time, a low inertia spindle with a synchronous built-in servo motor was developed. To minimize the synchronizing errors, the tapping cycle algorithm was optimized on an open architecture CNC. The developed tapping machine has the acceleration/deceleration time of 0.13sec/10,000rpm for rigid tapping and the synchronizing error below 4.4%. The cycle time for tapping a female screw of M3 and depth 2 times diameter was 0.55sec.

키워드

참고문헌

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