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4.在螺纹铣床上切削螺纹用的悬臂心轴:拧动螺拴1,衬套2就向左移动而压在碗形弹簧的端面上;弹簧组被压扁。在夹紧时,零件紧紧地拉向垫圈3的端面。 5.碗形弹簧钻模:在设计以不通孔来定心的钻模时,常常会遇到夹具的结构问题。目前所应用的张开式筒夹,不能获得很高的同心度,也不能很容易地卸下零件,同时没有充分的夹紧力。图8的钻模可以避免上述缺点。在外体1上压入衬套4,以便定心。5是螺栓,用销钉3固定,防止它转动。6是螺帽。为了使弹簧组均匀的移动,螺栓的承压端对轴线应保持严格
4. Thread the cantilever mandrel for threading on a thread milling machine: Tightening the bolt 1, the bush 2 moves to the left and presses against the end face of the bowl spring; the spring pack is squashed. When clamped, the part is firmly pulled toward the end face of the gasket 3. 5. Bowl spring die: In the design of non-through-hole to center the drill, often encounter the structural problems of the fixture. The currently used open collet does not achieve high concentricity and can not easily remove parts without sufficient clamping force. The drill of FIG. 8 avoids the above drawbacks. In the outer body 1 into the bushing 4, in order to centering. 5 is a bolt, with pin 3 fixed to prevent it from turning. 6 is a nut. In order to make the spring group move evenly, the pressure side of the bolt should be kept strictly to the axis