车床加工中，常遇到图1所示零件。由于零件壁薄，在加工时卡盘夹紧工件容易变形，另外，在车外圆时要两次装夹工件，费工费时。针对以上情况，我们设计了一种简易的胀心夹具，如图2所示。夹具中，锥体1与丝杆用焊接方法固定，锥套诀7加工完毕后三等分铣开，挡板6加工后也三等分 Lathe processing, often encounter the parts shown in Figure 1. Due to thin wall parts, the chuck clamping workpieces are easily deformed during processing. In addition, the workpieces need to be clamped twice when the wheel is in the outside circle. In view of the above situation, we designed a simple bulging heart fixture, as shown in Figure 2. Fixture, the cone 1 and the screw with a fixed welding method, Tapping tactic 7 after processing three points milling, the baffle 6 after processing also three points