五軸工具磨床最佳研磨性能調校模式

The adjusted and rectified model of the optimal grinding performance for 5-axis tool-grinder

黃致豪(Zhi-Hao Huang)

指導教授 ： 李炳寅

共同指導教授 ： 陳進益

國立虎尾科技大學/工程學院/創意工程與精密科技研究所/碩士(2010年)

摘要

工具機隨著科技逐漸趨向高精度化因此發展出多軸工具機機構以及高速切削的加工技術，五軸工具機各軸向的分度精度優劣，往往容易造成加工上的誤差，且影響著產品精度，故各線性軸與旋轉軸定位是否精確以及同動性，對於精密刀具磨床所生產之刀具品質，有著莫大的關係。
本研究將針對五軸刀具磨床作最佳化性能調校，目前刀具磨床運動軸所使用之馬達為伺服馬達，主要影響伺服馬達精度的因素為伺服驅動器參數與控制器調整，控制器調整參數有加減速、位置增益、進給加減速，而伺服驅動器調整參數有馬達的負載慣量比、速度應答、速度調節器積分時間、轉矩濾波器時間常數。原廠控制器與驅動器調整好後將使用雷射干涉儀檢測機台X、Y、Z線性軸與A、C旋轉軸定位誤差，並使用田口實驗設計法取得各軸最適參數，將此組參數寫進伺服驅動器及控制器中，進行實際研磨，以刀具研磨之刀具尺寸精度特性做為效能評估，進而節省調校參數時所浪費的時間及成本，提高刀具研磨精度提升並產品品質。

關鍵字

工具磨床 ； 田口法 ； 伺服參數 ； 誤差補償

並列摘要

By the fact that the technology has gradually moved to a highly precise situation, machine tools are expending to multi-axis machine tool mechanism and high-speed machinability. The pros and cons of each axis’s protractor of accuracy for five-axis machine tools will result errors in processing procedures. Moreover, that would influence the precision of it. So it’s highly related to the quality of blades what are produced by grinding machines, and whether linear axes and rotation axes are precise or not and their simultaneous motions. This study will focus on how to make the best performance of five-axis tool grinders. From now, the motors used by axial motion of grinder machines are servo motors. The main factors which affect the precision of servo motors are the control of servo driver and controller parameters. The control factors of the controller contain the acceleration/deceleration time constant, position loop gain, and acceleration/deceleration constant of feed rate. The control factors of the servo drives include the ratio of load inertia moment to servo motor inertia moment, speed of response, speed controller integration time, and torque filter time constant. After adjusting OEM controllers and drivers, we use laser interferometer to measure X, Y, Z linear axes and A, C rotation axes, position errors, and it use Taguchi method for optimal parameters of each axis. Putting the parameters we get above into servo drivers and controllers for actual grinding, and evaluating the precision of the size what it made, we can save time and costs using for adjusting parameters and improve the quality of precision in grinding.

並列關鍵字

Tool grinder ； Taguchi method ； AC Servo drive parameter ； error compensation

參考文獻

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[10] 沈奕均，「以多軸準動態特性匹配為基礎之控制器參數調整法設計」

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