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目前,在以节圆定位的磨削齿轮内孔夹具中,定位用的滚柱都采用保持架来固定安装。每次加工时,齿轮放入夹具后,都要手持保持架,将滚柱插入齿槽内再夹紧,加工完后操作顺序相反,操作较复杂。笔者改进了这种夹具,可以弥补其不足,且夹紧方式很适合有气动或液压夹紧装置的内圆磨床。其结构简图如附图所示。保持钢丝1与弹性夹筒5过盈配合插入后,再穿过滚柱2上的孔,末端弯曲一小段(长度大于滚柱半径1～2mm),
At present, in the grinding wheel with jog round hole fixture, the positioning of the roller are used to hold the cage to install. Each processing, the gear into the fixture, have to hold the cage, the roller inserted into the alveolar and then clamping, after the operation sequence is reversed, the operation is more complicated. I improved this fixture, which can make up for its shortcomings, and the clamping method is suitable for pneumatic or hydraulic clamping device of the internal grinder. The structure diagram as shown in the figure. After the steel wire 1 and the elastic barrel 5 are inserted and held in an interference fit manner, the wire 1 is further inserted through the hole on the roller 2 to bend for a short period (the length is larger than the roller radius of 1 to 2 mm)