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我厂在新机试制中遇到一种零件,形状及尺寸见图1。对这种内三角花键孔我们采用了拉削工艺。拉刀最大外径是φ10毫米。拉刀总长为600毫米、共28齿。特别是牙底R不大于0.1毫米,精度要求高,相邻齿距差0.003毫米、结果误差0.006毫米。拉刀尺寸见图2。这种拉刀是我厂的关键产品。我们从未加工过精度这么高的三角花键拉刀。头一阶段,虽然花了很长时间,采取了很多措施,但都未
I plant in the trial production of a new machine encountered a part, shape and size shown in Figure 1. For this kind of inner triangular spline hole we use broaching process. Broach maximum diameter is φ10 mm. Broach total length of 600 mm, a total of 28 teeth. Especially the bottom R is not greater than 0.1 mm, high precision, adjacent pitch 0.003 mm, the result of 0.006 mm error. Broach size shown in Figure 2. This broach is the key product of our factory. We have never machined a triangular spline broach with such precision. The first stage, although it took a long time, took a lot of measures, but none at all