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圆柱螺旋齿轮热处理后用夹具磨内孔,过去,一直用节圆棒,因与齿面的接触不好,内孔磨削质量不稳定。如今,我们改用节圆螺旋弹性棒(图1)磨削,质量很好。螺旋弹性棒由φ2.5钢丝绕制而成。由于弹性棒内径小,钢丝粗,采用一般的绕制方法心轴易弯曲,质量不易保证。现革新一套在车床上绕制螺旋弹性棒夹具,通过实际使用证明,效果很好。它结构简单,制造方便,由于夹具和刀架间安装了顶块,在绕制弹性棒
After the cylinder helical gear heat treatment with a fixture grinding hole, in the past, has been using a round rod, due to the contact with the tooth surface is not good, the quality of the hole grinding instability. Today, we use the pitch spiral spring rod (Figure 1) grinding, good quality. Spiral elastic rod made of φ2.5 wire wound. Due to the elastic rod diameter is small, thick steel wire, the general method of winding mandrel easy to bend, the quality is not easy to guarantee. Is a new set of spiral wound in the lathe spiral rod fixture, through the actual use of proof, the effect is very good. It is simple in structure and easy to manufacture. Since the top block is installed between the clamp and the tool holder,