The Development of System for Geometric Error Correction of Machine Tools

• Main Authors: Chien-Wei Lu, 呂建緯
• Other Authors: Shao-Hsien Chen
• Format: Others
• Language: zh-TW
• Published: 2017
• Online Access: http://ndltd.ncl.edu.tw/handle/gs7vg5

碩士 === 國立勤益科技大學 === 機械工程系 === 105 === In recent years, Machine tool industry developed rapidly. In order to achieve the industrial 4.0 program, intelligent value-added products of machine tool is one of the main development products for each R&D department. Nowadays, the geometrical accuracy is almost fixed after the machine tool was assembled. However, there are some external factors which impact the balance of the machine, take some example: external shock (earthquake, strong impact...etc.), the workpiece loading, and long-time stress effect on the machine. The level error does not impact the machine immediately, but when it last for long times which deteriorate the geometric accuracy of the machine. Furthermore, the great balance error of machine will cause vibration, thermal temperature rise...etc. Ultimately leading to reduce the use of machine life and affect the processing quality. There is no device to solve this issue. This study has developed an intelligent level measurement and compensation equipment to solve this issue. We also developed a HMI for this equipment. The equipment is verified the measuring range is ±3∘and the equipment accuracy is 0.0001∘. Calculating by the statistical formula, the accuracy is within the scope of the standard. Knowing the balance error but no doing compensation action which cannot actually be applied to the machine tool. In this case, we have developed a compensate equipment for this study. After verifying, it can be found that the maximum compensation range is ± 0.0009∘. The experimental test can be used to know the actual situation result is similar with the estimate value result. So the device has a considerable degree of compensation for the balance error. On the control aspects, we have used domestic controller manufacturers LNC’s industrial computer IPC6806S and control card RC2000 for development. The ultimate goal is to provide domestic manufacturers to use. This will not only promote the use of domestically produced controllers. Its price and performance are quite competitive, so that domestic machine tool manufacturers have a better competitive advantage.