- 學位論文
工具磨床研磨性能調校模式可行性分析
Feasibility Analysis of Adjustment Model of Grinding Performance for Tool Grinders
摘要
由於科技日新月異的發展，使得工具機趨向高精度化，工具機各軸向的定位精度優劣，將會直接影響產品的品質，故工具磨床各軸向定位是否精確，對於工具磨床所生產的刀具有極大的影響。本研究是針對工具磨床作研磨性能調校，即對工具磨床運動軸向所搭配使用的控制器與伺服驅動器進行參數調整，利用雷射干涉儀檢測機台各軸向的定位精度誤差，經由田口實驗設計法取得各軸的最佳參數，以刀具研磨點定位精度進行最佳參數驗證，確認此調機方法對各軸向定位精度提升的可行性。以10部機台做實驗並經研磨性能調校方法找出最佳參數，經實驗結果比較可得知最佳參數可降低X軸30.2%的定位誤差、Y軸29.2%的定位誤差、Z軸24.8%的定位誤差、A軸26.7%的定位誤差、C軸24.1%的定位誤差，經由實驗結果可證明此調整方法對工具磨床研磨點定位精度有提升的效益且可以提昇工具磨床製造商的競爭力。
並列摘要
Machine tools have been gradually trending a high precise situation, owing to the rapid change in technology. The positioning accuracy of each axis of machine tools will affect the quality of products. Therefore, the accuracy of cutting tools is influenced by the positioning accuracy of tool grinders. This study focuses on the adjustment model of grinding performance for tool grinders, i.e. the main control factors are some parameters of the controller and servo drives. We used a laser interferometer to measure the positioning errors of X, Y, Z linear axes and A, C rotation axes. Taguchi method was then utilized for obtaining the optimal parameters of each axis. These parameters were validated by measuring the positioning accuracy of grinding point to demonstrate the feasibility of the proposed method. We measured ten tool grinders to obtain the optimal parameters of the controller and servo drives. Experimental results show that 30.2%, 29.2%, 24.8%, 26.7%, and 24.1% positioning errors can be reduced for the X, Y, Z, A, and C axes, respectively. These results verify that the present adjustment approach can improve the positioning accuracy of tool grinders and enhance the competitiveness of manufacturers.