龍門工具機結構之靜態剛性分析

工具機靜態力會使工具機產生變形，進而影響加工的尺寸精準度，本文利用CATIA進行龍門工具機(建德KENT KMV-22P)建模、組裝設計與組件設定分析，以現有機台進行進行靜剛性分析，並提升靜剛性，先由功能原理方法計算頭部於橫樑上左右、上下移動之運動分析與動力分析，得到加速度設為0.1g來設計結構便能滿足此機台條件。本文以0.5g作為加速度條件，藉由分別對頭部與橫梁做補強，以及整體結構之結合部的剛性補強，變形量由原本的90µm降低至59µm，剛性提升25%，再以配重方式來減少橫梁因頭部載重而產生的變形，最終變形位移量降低至約33µm，靜剛性提升63%。經由本論文能提供一套提升龍門工具機靜剛性方法，可依實驗者而改變計算使用的原理，也可替換使用的軟體，但依循此模式便能達到龍門工具機剛性提升之目的。

關鍵字

龍門工具機；靜態剛性；配重

並列摘要

It will have some deformation and affect the product sizes on machine center by the static force. This thesis uses CATIA to complete 3D modeling, assemble the design and analyze the data setting. Next step, using the existing Machine Center for the Static stiffness analysis, resulting in an increase in the static rigidity. This thesis utilizes the Functional Principle Method to calculate the Movement Calculation and Power Calculation of the head on the beam’s horizontal movement, vertical up-or-down movement. It turns out that we set the acceleration as 0.1g can meet this machine’s conditions. However, this paper utilizes 0.5g as the conditions of the acceleration. By reinforcing the head, the beam, and the all junctions of the structure. This paper found that the deformation reduced from 90µm to 59µm, and the rigidity increased about 25%. Next, this thesis reduced the deformation of beam by Counterweight. In the end, this thesis got the outcome that the final deformation reduced to about 33μm, and the static stiffness increased to about 63%.