- 學位論文
具M2M通訊連結功能之工具機精度誤差量測與補償系統
Development of an automatic error measurement and compensation system with machine-to-machine connection capabilities for multi-axis machine tools
摘要
五軸工具機所需之誤差檢測項目多達43項，本文研究開發出一套可連結針對工具機各大控制器進行智能化工具機精度誤差量測與補償系統，可用於量測工具機直線軸定位誤差檢測、旋轉軸角度定位誤差檢測，並能透過通訊連結對控制器進行自動補償，進而大大降低工具機調校的時間以及人為疏失。 此外，業界於各項誤差補償後會對五軸工具機做一依據國際規範ISO10791-6多軸同動路徑進行切削，切削後再以第三方儀器三次元量床進行驗證，以獲知機台之總成誤差，相當耗費時間以及成本。本文利用工具機直線軸定位誤差、旋轉軸定位誤差以及旋轉中心誤差，並以ISO規範之同動路徑(K1、K2)對五軸工具機進行總成誤差之誤差建模，無需額外檢測設備就可得出工具機之總成誤差。與前人研究開發的NON-BAR相比，其殘餘誤差約在±5 μm內。
並列摘要
The error measurements for the five-axis machine tools are up to 43 items. This study aims to develop an intelligent automatic error compensation system which can be utilized to measure the positioning error of linear axis and the angle positioning error of rotary axis for machine tools equipped with commercial controllers. The controllers can be automatically compensated via the Ethernet and then substantially reduce the time of adjustment and the artificial negligence. However, a cutting test according to ISO 10791-6 is still needed in order to obtain the assembly error of the compensated machine tool, which is need to be verified by conducted by coordinate measuring machine of third-party. In order to improve or replace above industrial convention for five-axis machine tools, this study propose an assembly model in compliance with the simultaneous path of ISO standard to obtain the assembly errors without third-party verification by simply combining the measurement results of linear axis, rotary axis and rotary center errors. Compared with the NON-BAR developed in the previous studies of our laboratory, the residual error of proposed model is within ±5 μm.