市場上對於高精度齒輪的需求日益增加，為了滿足市場對於穩定快速的生產出高精度齒輪的需求，因此齒輪生產是採用數值控制(CNC)傘齒輪切齒機最多可使用六軸進行製造。由於加工上需採非線性刀具路徑，在NC加工碼編程較複雜。因此需要人機界面(HMI)來自動生成NC加工碼，同時監控加工過程和機器狀態(軸位置、扭矩和溫度)。本研究開發了配備西門子SINUMERIK 840D sl控制器的傘齒輪切齒機的人機介面，通過開放平台通信統一架構(OPC UA)與數控單元(NCU)進行通信。以Visual C# 開發人機介面並通過OPC基金會(OPC Fundation)的動態函式庫(DLL)與數控單元進行連線。開發的功能包括讀取機台設定參數、讀寫PLC參數、讀寫用戶自定義R參數以及傳輸NC代碼等。最後提出了切削進給速度最佳化方法，並通過切削實驗對所提出的方法進行了驗證。

Modern computer numerical control (CNC) bevel gear cutting machines have up to six-axis for manufacturing. NC codes are challenging to be programmed due to the nonlinear tool path. Therefore, the human-machine interface (HMI) is necessary to generate the NC codes automatically and monitor the machining process and machine status (axis position, torque, and temperature). This research develops the HMI of a bevel gear cutting machine equipped with a Siemens SINUMERIK 840D sl controller. The HMI communicates with the numerical control unit (NCU) through the open platform communication unified architecture (OPC UA). The Visual C# is used to develop the HMI and connects to NCU through the OPC foundation's dynamic-link library (DLL). The developed functions include reading machine and setting data, reading and writing PLC variables, reading and writing user-defined R parameters, and transferring NC codes. Finally, an optimization method of cutting feed rate is proposed, and a cutting experiment is conducted to verify the proposed method.

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