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在机械制造中,薄壁套类零件在加工过程中变形大、精度不易保证。为此,我们设计制造了一种多片张式定位心轴,其结构如附图所示,它由心轴1、片锥套2、螺母3、橡胶棒4和环形弹簧5所组成。心轴1 的尾部锥度与不同机床的主轴锥孔相配合,右端是锥度1∶8或1∶5的外锥与片锥套2配合,锥套2右端孔内车有环形沟槽、旋转螺母3可带动片锥套2做轴向移动,同时改变径向尺寸,使工件胀紧或松开。为使多片锥套保持一致,具有弹性,两锥套片间装有保持件——橡胶棒4。橡胶棒
In machinery manufacturing, thin-walled sleeve parts in the deformation process, the accuracy is not easy to guarantee. To this end, we design and manufacture of a multi-piece sheet positioning mandrel, the structure shown in the figure, which consists of a mandrel 1, taper sleeve 2, nut 3, rubber rod 4 and ring spring 5 composed. The taper of the tail of the mandrel 1 is matched with the taper of the spindle of different machine tools, the right end is an outer cone with taper 1: 8 or 1: 5 cooperating with the taper sleeve 2, and the right end hole of the taper sleeve 2 has an annular groove, 3 can drive the chip sleeve 2 to do the axial movement, meanwhile, change the radial size to make the workpiece expand or release. In order to make a plurality of conical sleeves consistent, flexible, between the two conical sleeves equipped with a holder - rubber rod 4. Rubber rod