Mold Grinding & Polishing Technology development and Surface Quality Examination, a study of 6-Axis Robotic

• Main Authors: HUANG, CHUNG-FU, 黃仲甫
• Other Authors: TSENG, SHI-CHANG
• Format: Others
• Language: zh-TW
• Published: 2019
• Online Access: http://ndltd.ncl.edu.tw/handle/dv2b9j

碩士 === 國立雲林科技大學 === 機械工程系 === 107 === Mold for injection molding should maintain gloss and flawless, most of traditional mold manufacture process use manual polishing process, it’s cost huge amount of labor costs and time. In this study, use six-axis robot arm and force feedback system conduct mold surface polishing process. Use multi type polish tool conduct polishing parameter test, include brass ring, plastic ring, sand cloth sleeve, sandpaper and wool felt with diamond paste. In this experiment, we use NC milling machine made work piece with curve surface, to simulate the milling process of mold manufacture process, as material of robot polishing experiment. Polishing path was edit and generated by Octopuz, Octopuz can simulated robot arm movement inside the software interface, to make sure this path wasn’t dangerous. By adapt Peano fractal path, the balance direction distribution was obtaining, with more degree of generated freedom Peano was, the working area can be adjusting easily. In this experiment, under the condition of flat surface, sand paper polish could have better polishing efficiency, can reach surface roughness around Ra 0.06 μm, but hardly conduct small radius curve surface polishing; use sand cloth sleeve can remove machine mark on the curve surface efficient, but need to beware about polish parameter to avoid partial over cut; wool felt with diamond paste only work on the surface with better roughness, because of poor material removal rate, can reach surface roughness around Ra 0.04 μm. Because the softness the material is, it can absorb the vibration which was generate by movement of robot arm, avoid the impact between tool and work piece. Use robot arm conduct surface rough polishing can reduce enormous time. Shorter polishing process with efficient.