A Method for Enhancing the Accuracy of On-Machine Inspection for Five-Axis CNC Machines

Abstract:

The efficiency of manufacturing structural parts can be improved by using on-machine inspection system. It is difficult to separate the valid information from hundreds of points and correct the errors by rotating and translating the workpiece coordinate system directly, especially for five-axis CNC machines. In this paper, a practical method is designed to correct errors easily. By using the least square method, an error reference frame is constructed, and the relation between the compensation values and coordinates of the theoretical points is derived. An example of aircraft structural parts is presented to validate the design.

• Periodical: Advanced Materials Research (Volume 426)
• Pages: 351-354
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.426.351
• Online since: January 2012
• Authors: Sheng Bao, Xi Zhang, Ping Fa Feng
• Keywords: CNC Machine Tool, Error Compensation, Least-Square Method (LSM), On-Machine Inspection

References

[1] Y.J. Kwona, T.L. Tseng and Y. Ertekin: Robotics and Computer-Integrated Manufacturing Vol. 22(2006), pp.288-296.

[2] M.W. Cho, G.H. Kim, T.I. Seo, Y.C. Hong and H.H. Cheng: Int. Journal of Machine Tools & Manufacture Vol. 46(2006), pp.1417-1427.

[3] Y.Y. Hsu and S.S. Wang: Int. Journal of Machine Tools & Manufacture Vol. 47(2007), pp.352-360.

[4] W.T. Lei and Y.Y. Hsu: Int. Journal of Machine Tools & Manufacture Vol. 43(2003), pp.871-877.

[5] R.S. Lee and C.H. She: Int. Journal of Advanced manufacturing technology Vol. 13(1997), pp.658-665.