Heavy-calibre off-axis aspheric surface polishing by industrial robot

YongSheng Yao; Zhen Ma; JiaoTeng Ding; QinFang Chen; Xuewu Fan; Le Shen; QiXin Li

doi:10.1117/12.2504755

16 January 2019 Heavy-calibre off-axis aspheric surface polishing by industrial robot

YongSheng Yao, Zhen Ma, JiaoTeng Ding, QinFang Chen, Xuewu Fan, Le Shen, QiXin Li

Proceedings Volume 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 1083803 (2019) https://doi.org/10.1117/12.2504755
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

An ABB IRB6640 industrial robot is used as a processing platform for optical polishing. The relationships of coordinate systems are defined, the algorithm of coordinate transformation, Euler angles and quaternion are provided. M-like removal function and Gaussian-like removal function are used to simulation process an off-axis aspheric surface. The surface error after polishing by M-like removal function is 1.5 to 2.5 times bigger than Gaussian-like removal function. This proves that M-like removal function also has good convergence speed. Then, the pentagram polishing head is used to polish a Φ600mm off-axis paraboloid surface. After 15 cycles, about 120 hours processing, PV converges from 5.8μm to 0.836μm, RMS converges from 1.2μm to 0.054μm, PV and RMS respectively converge 85% and 95%. The experiment shows M-like removal function has good convergence speed.

Citation Download Citation

YongSheng Yao, Zhen Ma, JiaoTeng Ding, QinFang Chen, Xuewu Fan, Le Shen, and QiXin Li "Heavy-calibre off-axis aspheric surface polishing by industrial robot", Proc. SPIE 10838, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 1083803 (16 January 2019); https://doi.org/10.1117/12.2504755

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