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我厂长期生产水泵总成,其中有一泵轴在C616车床上车外圆。过去是用三爪自定心卡盘夹紧泵轴一端,另一端用活顶尖顶紧中心孔,操作效率低。我们改进了原装夹方法,制成如图1所示零件,用卡盘夹紧φ21mm的外圆,将水泵轴未倒角一端放进夹具的18°～22°的锥面内,如图2所示,另一端用活顶尖顶紧中心孔,然后进行车削。这样,上下工件不用停车,提高了生产效率。图1中φ18.5mm是根据水泵轴的尺寸定的,水泵轴直径为19mm。
I plant long-term production pump assembly, of which there is a pump shaft in the C616 lathe round. In the past is the use of three-jaw self-centering chuck chuck shaft end, the other end with a living top sharp tight center hole, low efficiency. We improved the original clip method, made of parts shown in Figure 1, with chuck clamping φ21mm cylindrical, the pump shaft is not chamfered end of the fixture into the 18 ° ~ 22 ° cone, as shown in Figure 2 Shown at the other end of the top with a tight top tight center hole, and then turning. In this way, up and down the workpiece without parking, improve production efficiency. Figure 1 φ18.5mm is based on the size of the pump shaft, water pump shaft diameter of 19mm.