Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Development of a Multi-Tasking Machine Tool for Machining Large Scale Marine Engine Crankshafts and Its Design Technologies

대형 선박엔진 크랭크샤프트 가공용 복합가공기 기술 개발

  • 안호상 (한국정밀기계(주) 기술연구소) ;
  • 조용주 (한국정밀기계(주) 기술연구소) ;
  • 최영휴 (창원대학교 메카트로닉스공학부) ;
  • 이득우 (부산대학교 나노메카트로닉스공학과)
  • Received : 2011.12.20
  • Accepted : 2011.12.30
  • Published : 2012.02.01
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Abstract

A multi-tasking machine tool for large scale marine engine crankshafts has been developed together with design technologies for its special devices. Since work pieces, that is, crankshafts to be machined are big and heavy; weight of over 100 tons, length of 10 m long, and diameter of over 3.5 m, several special purpose core devices are necessarily developed such as PTD (Pin Turning Device) for machining eccentric pin parts, face place and steady rest for chucking and resting heavy work pieces. PTD is a unique special purpose device of open-and-close ring typed structure equipped with revolving ring spindle for machining eccentric pins apart from journal. In order to achieve high rigidity of the machine tool, structural design optimization using TMSA (Taguch Method based Sequential Algorithm) has been completed with FEM structural analysis, and a hydrostatic bearing system for the PTD has been developed with theoretical hydrostatic analysis.

Keywords

References

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Cited by

  1. Test and Evaluation of Stiffness of a Pin Turning Device for Large Marine Engine Crankshafts vol.01, pp.07, 2013, https://doi.org/10.4236/jpee.2013.17003
  2. Stiffness Evaluation of a Heavy-Duty Multi-Tasking Lathe for Large Size Crankshaft Using Random Excitation Test vol.31, pp.7, 2014, https://doi.org/10.7736/KSPE.2014.31.7.627