我厂以前车制垫圈类工件外圆时,是把工件压紧在法兰盘上来加工的,装夹和校正都较费时,并且很难保证工件内外同心。后由蒋明礼同志建议,改进了如图1的自动定心夹具,使加工垫圈的装夹时间大大缩短,生产效率提高一倍半以上。这夹具是由夹具体1、固定销 Before the factory car washers cylindrical workpiece type, the workpiece is pressed into the flange on the processing, clamping and calibration are more time-consuming and difficult to ensure that the concentric parts inside and outside the workpiece. After Comrade Jiang Mingli proposed to improve the self-centering fixture as shown in Figure 1, the processing of gasket clamping time is greatly reduced, production efficiency increased by more than one and a half. This fixture is made of clamp body 1, fixing pin