數位雙生應用於五軸加工驗證

Application of Digital Twin for Validation of Five-axis Machining

林明宗 ； 蔡博淮 ； 李建毅

《機械工業雜誌》 488期 (2023/11) Pp. 65-72

摘要

本文開發一搭配西門子控制器之五軸工具機數位雙生系統，透過整合插補器、伺服傳動模型、結構動態分析等技術，用以預測五軸加工過程產生的輪廓誤差，並達到插補參數調整功能。首先透過西門子控制器自動伺服調機功能進行系統鑑別，求得伺服優化參數以及虛擬工具機模型，同時達到五軸插補匹配。接著推導位置轉移函數，求得直線與圓弧路徑的輪廓誤差解析解，再使用KAKINO標準路徑調教關鍵的插補參數。最後，使用NAS979切削測試驗證本文所提出的方法可以進一步提升五軸工具機之加工精度與品質。

關鍵字

數位雙生 ； 虛擬工具機 ； 五軸加工

並列摘要

This article presents a digital twin system for a five-axis machine tool equipped with Siemens controllers. The system integrates techniques such as interpolation, servo drive modeling, and structural dynamic analysis to predict contour errors generated during the five-axis machining process and achieve interpolation parameter adjustments. Initially, the Siemens controller's automatic servo tuning function is employed for system identification, resulting in optimized servo parameters and a virtual machine tool model, while ensuring compatibility with five-axis interpolation. Subsequently, position transfer functions are derived to obtain analytical solutions for contour errors in linear and circular path trajectories, followed by the use of KAKINO standard path tuning to adjust key interpolation parameters. Finally, the NAS979 cutting test is employed to validate that the proposed method can further enhance the machining accuracy and quality of the five-axis machine tool.

並列關鍵字

Digital twin ； Virtual machine tool ； Five-axis machining

參考文獻

林明宗、賴涵餘、李建毅、李日傑，“ 適應性負荷控制與伺服參數優化技術開發 ”，機械工業雜誌，第 444 期，17-30 頁，2020 年 3 月。

FANUC, https://www.fanuc.co.jp/en/JIMTOF2022/index.html

“SINUMERIK ONE Create MyVirtual Machine System Manual,” Siemens, 2019.

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“TNC620 User's Manual Setup, testing and running NC programs NC software 817600-06 817601-06 817605-06,” Heidenhain, 2018.