A Method for Path Generation of Robot Automatic Polishing Based on Bounding Box

Abstract:

In order to solve the problem of high intensity and low efficiency by manual labor during the polishing machining of mold free-form surface, this paper present a method for path generation of robot automatic polishing based on bounding box. Firstly, ascertain the location and direction of the mold by constructing a box that is most close to the mold. Secondly, generate the tool path by introducing the improved direction-parallel machining. Finally, by using Visual C++6.0 development tool, the algorithm discussed above has been implemented and a software for trajectory generation has been developed. The results show that the method can generate the tool path better along the surface contour and is simple, effective. Besides, the software supplies a visible trajectory for robot polishing so that the unreasonable points can be modified before machining.

• Periodical: Advanced Materials Research (Volumes 490-495)
• Pages: 24-28
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.490-495.24
• Online since: March 2012
• Authors: Li Li Han, Qing Wei Zhang, Kai Jia
• Keywords: Bounding Box, Direction-Parallel Machining, Freeform Surfaces, Path Generation

References

[1] Hon-yue Tam, Osmond Chi-hang Liu, Alberet C.K. Mok. Robotic polishing of free-form surfaces using scanning path. Journal of Materials Processing Technology, 1999, 95(1999): 191-200.

DOI: 10.1016/s0924-0136(99)00338-6

[2] Zhan Jianming, Zhan Jianbo, Zhou Xiaoqin. Research on the path planning of robotic surface polishing[A]. In: 13th Conference of China University Society on Manufacturing Automation [C]. Harbin: (2008).

[3] Zhang Leitao, Hu Yuxia, Cao Xiuge, Yan Liqin. Study of the Minimum Bounding Rectangle Algorithm of Injection Parts [J]. Journal of Gansu Normal Colleges, 2005, 10(2): 16-18.

[4] Wang Ping, Yang Yanping, Deng xiao. Study on the Motion Control of Mold Polishing Robot System [J]. Chinese Journal of Mechanical Engineering, 2007, 18(20): 2422-2425.

[5] Cheng Pengfei, Yan Haowen, Han Zhenhui. An Algorithm for Computing the Minimum Area Bounding Rectangle of an Arbitrary Polygon [J]. Journal of Engineering Graphics, 2008(1): 122-126.

[6] Márquez J J, Pérez J M, R'ios J, Vizán A. Process modeling for robotic polishing. Materials Processing Technology[J], 2005(159): 69-82.

DOI: 10.1016/j.jmatprotec.2004.01.045

[7] Chih-ching Lo and Rong-shine Lin. An improved method for scheduling the tool paths for three axis surface machining. Int. J. Mach. Tool Manuf. 2001, 41(1): 133-147.

DOI: 10.1016/s0890-6955(00)00050-x

[8] Ding S, Mannan M A, Poo A N. Oriented bounding box and octree based global interference detection in 5-axis machining of free-form surfaces[J]. Computer-Aided Design, 2004, 36(13): 1281-1294.

DOI: 10.1016/s0010-4485(03)00109-x

[9] Chan C K, Tan S T. Determination of the minimum bounding box of an arbitrary solid: an iterative approach[J]. Computers and Structures, 2001, 79: 1433-1449.

DOI: 10.1016/s0045-7949(01)00046-3