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7301型向心滚柱轴承中的滚柱,它的端面为球形弧(如图1)的,而且加工精度要求又比较高。我们在领导的大力支持及同志们的热情帮助下,创造了一种专用夹具,经使用证明:不仅保证了精度要求,而且生产效率也很高。现把夹具的简单结构介绍如下。一、原理及结构夹具结构很简单,主要由以下几部分组成(如图2):固定盘6是不转动的,它的上面挖有滚道,以保证工件能沿着一定轨道旋转。主轴1穿过固定盘6的中心,由蜗杆5和蜗轮4带动旋
7301-type radial roller bearings in the roller, the spherical surface of the arc (Figure 1), and the machining accuracy is relatively high. With the strong support of our leaders and the enthusiastic support of our comrades, we have created a special fixture that proves to be of use not only for accuracy but also for productivity. Now the simple structure of the fixture described below. First, the principle and structure Fixture structure is very simple, mainly composed of the following parts (Figure 2): Fixed disk 6 is not rotating, and its excavated above the raceway to ensure that the workpiece can be along a certain track rotation. The spindle 1 passes through the center of the fixed disk 6 and is driven by the worm 5 and the worm wheel 4 to rotate