在设备修理中,经常要对机床母丝杠(图1)进行修复,然后按修复后的丝杠实际尺寸配车开合螺母(图2)。该丝杠的两端是不通的,不能用旋合的方法配车开合螺母,只能用单独配制的样板或用配磨内螺纹车刀的方法来加工。由于修复的丝杠中径尺寸是变化的,所以操作者要有较高的技术水平。稍有疏忽就 In the equipment repair, often to the machine tool screw (Figure 1) to repair, and then repair the actual size of the screw with the car open nut (Figure 2). The ends of the screw is not connected, can not be used with the method of opening and closing the car with a nut, can only be used to prepare a model or with the grinding method of internal thread turning tool to process. As the repair of the screw diameter size is changing, so the operator should have a higher level of technology. Slightly negligent