Proceedings of the
9th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2022)
15 – 18 November 2022, Singapore
doi:10.3850/978-981-18-6021-8_OR-04-0051
Effect of Wheel Compliance on the Automatic Finishing Operation
1School of Mechanical Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-kwagiro, Buk-gu, Gwangju, 61005, Korea, South
2School of Mechanical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Janggwan-gu, Suwon-si, Gyeonggi-do,16419, Korea, South
ABSTRACT
In the automotive die-mold finishing process, large mold surfaces such as bonnet, roof panel, side fender and door require highly skilled finishing work. Die mold manufacturers are confronting extreme shortage of skilled finishing workers. Hence, a robot finishing technology could be a crucial process for the auto-finishing of the automotive mold manufacturing. To accomplish robot finishing, the automatic measurement of surface roughness level as well as the precise machining control are required simultaneously. In the mold finishing process, several types of grinding wheel are used to produce smooth surface. Some of them have high rigidity for shape correction, others high flexibility for surface finishing. Cutting operation is repeatedly performed to remove the desired height. Hence, it has been considered as a highly complicate work for achieving full automation within a comparable time of the manned working. In this regard, the accumulated cutting depth, the generation of non-uniform cutting profile due to the flexibility of wheel and the change of wheel contact position due to the wheel rotation are introduced in this study. Upon overcoming those issues a positioning control regime based on the CAD model could be introduced.
Keywords: Automatic finishing, Lapping, Lapping wheel, wheel compliance, Cutting profile
1School of Mechanical Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-kwagiro, Buk-gu, Gwangju, 61005, Korea, South
2School of Mechanical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Janggwan-gu, Suwon-si, Gyeonggi-do,16419, Korea, South
ABSTRACT
In the automotive die-mold finishing process, large mold surfaces such as bonnet, roof panel, side fender and door require highly skilled finishing work. Die mold manufacturers are confronting extreme shortage of skilled finishing workers. Hence, a robot finishing technology could be a crucial process for the auto-finishing of the automotive mold manufacturing. To accomplish robot finishing, the automatic measurement of surface roughness level as well as the precise machining control are required simultaneously. In the mold finishing process, several types of grinding wheel are used to produce smooth surface. Some of them have high rigidity for shape correction, others high flexibility for surface finishing. Cutting operation is repeatedly performed to remove the desired height. Hence, it has been considered as a highly complicate work for achieving full automation within a comparable time of the manned working. In this regard, the accumulated cutting depth, the generation of non-uniform cutting profile due to the flexibility of wheel and the change of wheel contact position due to the wheel rotation are introduced in this study. Upon overcoming those issues a positioning control regime based on the CAD model could be introduced.
Keywords: Automatic finishing, Lapping, Lapping wheel, wheel compliance, Cutting profile
