刀具監控與加工參數優化系統設計

Design of Cutter Monitoring System and Machining Parameter Optimization System

陳哲緯(Che-Wei Chen)

指導教授 ： 王世明

中原大學/工學院/機械工程研究所/碩士(2016年)

https://doi.org/10.6840/cycu201600862

摘要

本研究透過ServBox通訊技術建立與控制器雙向資料傳輸及DAQ感測器擷取實際銑削實驗擷取切削振動加速度，分析刀具切削狀態，紀錄刀具臨界壽命發生時的訊號時域變化特徵，藉由振動訊號變化分析與振動斜率成長趨勢分析雙重門檻，制訂臨界壽命判斷法則，同時整合刃口積屑與斷刀監控方法成一完整刀具智能監控系統。此外，研究中也發展了加工參數優化系統，利用建立專家資料庫儲存過去加工參數，協助工程師在設計一新加工參數時能藉由專家資料庫快速比對適合參數，縮短設計時間。研究中以Visual C#撰寫刀具智能監控系統與加工參數優化系統，可進行CNC控制器即時雙向資料傳輸、記錄即時振動訊號與刀具異常資訊、加工參數優化等功能。實機驗證結果顯示，該系統可以快速準確發現刀具異常與有效協助加工者作優化參數選用。

關鍵字

刀具壽命 ； 診斷 ； 監控系統 ； NC程式優化

並列摘要

Through this study, the actual milling experiment to capture the vibration acceleration, time domain analysis of vibration changes , the signal changes by transient analysis and spectrum analysis dual threshold formulate judgment rule, while taking advantage of cutting region auxiliary determine whether the cutting conditions in the tool life to improve the accuracy of judgment. In addition, through analyzing the NC code and computation with process optimizing algorithm the process optimization unit can recommend the machining parameters for better machining efficiency or better machining accuracy.
Research has also established a two-way data transfer controller capture module, to achieve real-time monitoring and control functions via TCP / IP protocol. The method of development, in addition to PLC is compiled, the research to Visual C # to establish the overall monitoring system in Visual C ++ environment, can be CNC controller data transmission, recording real-time vibration signal and cutting unusual information, online cutting tool real-time monitoring and other functions.
According to experimental results, show that the system can quickly and accurately find and make immediate cutting tool suppression.

並列關鍵字

Tool wear ； on-line monitoring control system ； nc code optimization

參考文獻

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