使用NON-BAR檢測系統於五軸CNC工具機檢測技術的開發及應用

Development and Application of Measurement Technologies for Five-axis CNC Machine Tools using NON-BAR Measurement System

紀慕丞(Mu-Cheng Ji)

指導教授 ： 覺文郁

國立虎尾科技大學/工程學院/自動化工程研究所/碩士(2012年)

摘要

本研究主要使用既有的光學式五軸CNC工具機檢測系統─NON-BAR，搭配不同的檢測方式、參數調整及不同的環境條件等，以檢測五軸CNC工具機的各種誤差，並予以補償，使五軸CNC工具機的局部甚至整體精度得以提高，藉此提昇工件的精度與良率。
NON-BAR擁有許多優點，可執行ISO/CD 10791-6之檢測路徑與規範乃其一，且可即時地擷取空間中的3維誤差量，將數據建立分析方法與數學模型，可得工具機特定誤差項，即可予以補償至控制器參數中。
除遵循ISO/CD 230之檢測路徑與規範外，嘗試調整控制器的線性與旋轉軸背隙、檢測路徑之進給率(Feedrate)、長時間連續運轉，使其檢測路徑與環境更符合實際切削時的條件，藉此檢測到工具機的特定誤差項。根據檢測與補償結果，可將線性軸背隙補償至1μm以下，旋轉軸補償至0.001°以下，並針對一些個案做檢測及探討。

關鍵字

五軸工具機 ； 背隙誤差 ； 檢測技術 ； ISO/CD 10791-6

並列摘要

Several methods for assessing the five-axis CNC machine tools by using the optical calibration system, NON-BAR as the measuring instrument are proposed in this paper. Through some simple tests with the certain variables or parameters modifications some errors can be obtained.
NON-BAR was characterized by the easily setup, the low calibration time and the standard measuring path described in ISO/CD 10791-6.
The proposed measurement technologies include the static/ dynamic backlash of the translation and the rotary axes, volume error of K1, K2 and K3 path and the thermal drift. Especially static backlash calibration, the translation axis static backlash error can be compensated under 1 μm, the rotary axis static backlash error can be compensated under 0.001°. Furthermore, some cases are proposed and discussed.

並列關鍵字

Five-axis CNC machine tools ； backlash ； measurement technology ； ISO/CD 10791-6

參考文獻

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