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车削有同轴度要求的工件,一般采用正反夹装,并用划针盘或千分表来找正工件的位置,这种校直法,费时,生产效率低。为保证工件的同轴度,采用原有机床上的三爪卡盘,换上不经淬火的三爪进行定位。这种方法因需新制三爪及其平面螺纹,所以只适用于成批生产,具体办法介绍如下: 1.将三爪卡盘上经过淬火的三爪拆下,装上未淬
Turning the workpiece with the coaxiality requirements, the general use of positive and negative clamping, and with a needle dial or dial gauge to find the position of the workpiece, this straightening method, time-consuming, low productivity. In order to ensure the concentricity of the workpiece, using the original three-jaw chuck on the machine, put on the un-quenched three claws for positioning. This method due to the need for new three-jaw and its flat thread, so only for mass production, the specific methods are described as follows: 1. The three jaw chuck after quenched three jaws removed, fitted with unquenched