过去我们粗铣传动轴套管叉(图1)两侧面时,一直采用花键心轴定位,人工夹紧,另加辅助支撑。一次铣一个工件,需要九个工步,不仅劳动强度大,而且工效低。有时工件还会卡在心轴上很难取下。改进后的液压半自动夹具是双工位的如图2,配合双面铣使用。只要把两只套管叉放在花键轴3上,按下电钮后,便能自动夹紧工件,铣完后又自动松开带出工件,取下工件后,即可进行第二个循环。现在同时铣两个工件,只要三个 In the past, when we roughed both sides of the drive shaft sleeve fork (Figure 1), we used spline mandrel positioning, manual clamping and additional support. One milling a workpiece, you need nine steps, not only labor-intensive, and low efficiency. Sometimes the workpiece will be stuck on the mandrel is difficult to remove. Improved hydraulic semi-automatic fixture is a duplex station shown in Figure 2, with double-sided milling. As long as the two bushing fork on the spline shaft 3, press the button, you can automatically clamp the workpiece, after milling automatically loosen the workpiece, remove the workpiece, you can for the second cycle . Now milling two work pieces at the same time, as long as three