我厂在车削齿轮(图1)时,端面跳动经常超差,为此,我厂设计制造了CA7620半自动车床上使用的夹具(图2)。提高了质量,减轻了工人劳动强度。使用时首先将液压夹紧松开旋钮放在松开位置,通过油缸作用,与心轴4联在一体的定位销2向右伸出,同时心轴拉杆5松开工件卸料。新装上的工件以定位销2定位,再把旋钮放在夹紧位置,心轴拉杆5向左移 I plant in the turning gear (Figure 1), the end beating often ultra-poor, for this reason, I design and manufacture factory CA7620 semi-automatic lathe used on the fixture (Figure 2). Improve the quality and reduce the labor intensity of workers. First use the hydraulic clamping release knob on the release position, through the role of the cylinder, and the mandrel 4 in one of the positioning pin 2 extends to the right, while the mandrel rod 5 release the workpiece unloading. The newly installed workpiece to locate the pin 2 positioning, then the knob on the clamping position, the spindle lever 5 to the left