图示的M形保持架成型模有以下特点:成本低,加工周期短,调整简单,以及成型后的保持架几何精度理想。 设计模具时应注意:(1)外弹簧卡头的分瓣个数应与保持架窗孔个数尽量相同。外卡头回火后的内径尺寸应比保持架外径尺寸略大1mm,以便成型后的保持架可容易取出。(2)内弹簧卡头的分瓣个数不宜过多。内卡头回火后的外径尺寸应比保持架内径尺寸小 The illustrated M-shaped cage mold has the following features: low cost, short processing cycle, easy adjustment, and an ideal geometric geometry of the cage. Mold design should pay attention to: (1) the outer spring chuck the number of lobes should be the same as the number of cage window. After the outer card tempering the inner diameter size should be slightly larger than the outer diameter of the cage size 1mm, so that after forming the cage can be easily removed. (2) The number of the inner spring chuck should not be too much. The inner diameter of the chuck after tempering should be smaller than the inner diameter of the cage