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连杆是机械上的重要零件,其几何形状和尺寸精度要求较高。为了解决连杆螺钉孔中心对连杆体中心偏移的问题,我厂自制了可调菱形定位销工具,替换了固定菱形销,把它用在成批生产的连杆螺钉孔的钻、镗、铰工序上。经一年试用证明,效果较好,消除了废品,其结构简单、操作方便,深受操作工人欢迎。工具装配见图。它是利用两片楔形定位滑块5(可涨缩)来调整间隙。原工艺在加工连杆螺钉孔时,连杆大小孔分别采用固定的菱形销和圆柱销定位。在加工的前一工序是粗车大头孔,它是由小头孔定位
Connecting rod is an important mechanical parts, the geometric shape and dimensional accuracy of the higher. In order to solve the problem that the center of the connecting rod screw hole is offset to the center of the connecting rod body, our factory makes the adjustable diamond positioning pin tool, replaces the fixed diamond pin, and uses it for drilling, boring of the connecting rod screw hole of mass production , Hinge process. After a year of trial proved that the effect is better, eliminating the waste, its simple structure, easy operation, welcomed by the operatives. Tools assembly diagram. It is the use of two wedge-shaped positioning slider 5 (adjustable) to adjust the gap. The original process of connecting rod screw hole, connecting rod hole size were fixed diamond pin and cylindrical pin positioning. In the processing of the previous process is rough big hole, it is located by the small hole