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A Study on the Test Workpiece for Accuracy Evaluation of 5-Axis Machine Tool

5축 공작기계 정밀도 평가를 위한 표준 공작물에 관한 연구

  • Youn, Jae-Woong (Division of Mechanical & Automotive Eng., Daegu Univ.) ;
  • Kim, Ki-Hwan (Graduate school, Department of Mechanical Engineering, Daegu Univ.) ;
  • Park, Jong Tak (Graduate school, Department of Mechanical Engineering, Daegu Univ.)
  • 윤재웅 (대구대학교 기계.자동차 공학부) ;
  • 김기환 (대구대학교 기계공학과 대학원) ;
  • 박종탁 (대구대학교 기계공학과 대학원)
  • Received : 2014.03.31
  • Accepted : 2014.04.25
  • Published : 2014.05.01

Abstract

Recently, a demand for precision 5-axis machine tools is significantly increasing, and the maintenance of machine tool accuracy becomes more important. it is very difficult to evaluate to accuracy of 5-axis M/C in the production site since it needs expensive measuring equipment and skilled engineer. On the other hand, evaluation items of 5-axis M/C are not systematically organized in the existing KS and ISO standards. In this study, the evaluation items for 5-axis M/C were derived systematically and a test workpiece was developed to evaluate the machine tool accuracy more easily. The error sources of machine tool can be estimated by machining and measuring of the test workpiece. The correlation between the machine tool accuracy and the accuracy of machined test workpiece was analyzed. As a result, the accuracy of machined test workpiece represented the accuracy of machine tool and the error sources very effectively.

Acknowledgement

Grant : 대형복합형상 가공용 Gantry형 5축 가공기 개발

Supported by : 산업통상자원부

References

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