论文部分内容阅读
在铣床上采用端铣方式加工平面,是机械制造中广泛应用的工艺方法。经端铣加工后的平面有时出现凹心现象,产生平面度误差。对于平面度要求较高的零件,将导致平面配合局部间隙过大,而影响产品性能。本文对此作如下分析。一、端铣平面凹心现象的产生如图1所示,在端铣平面时、被压紧在工作台上的工件,由工作台沿着平行于铣刀尖回转平面的方向进给、完成工件平面的加工。试设想把工作台转动一个角度α=90°,使工作台进给运动方向垂直于铣刀尖回转平面、相当于按周铣
In the milling machine using end milling mode machining plane, is widely used in machinery manufacturing process. After the end of the milling plane after the emergence of concave phenomenon, resulting in flatness error. For the flatness of the higher parts, will lead to the plane with the local gap is too large, and affect product performance. This article makes the following analysis. First, the end milling plane concave phenomenon occurs as shown in Figure 1, the end milling plane, the workpiece is pressed on the table by the workbench along the plane parallel to the direction of milling cutter feed, complete Workpiece plane processing. Imagine the workbench rotation angle α = 90 °, so that the workbench feed direction perpendicular to the milling cutter tip turning plane, the equivalent of perimeter milling