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在加工工件上的断续表面时,由于存在着冲击和振动,必然影响到工件的加工精度和切削刀具的使用寿命。 现介绍一种加工工件上断续表面的方法,可以克服上述缺点并能提高工件加工精度。 如图所示,在工件1外表面上,有预先铣出的花键槽和键槽。将元件8装入键槽内,该元件其形状、尺寸、重量与铣出的键槽完全相符。由于键槽的不等分性,使工件产生不平衡,因此,在磨床上必须校对工件的动平衡,然后拧紧螺钉7将元件8固定。同样将元件4（元件4与铣出的花键槽内,其形状、尺寸、重量完全相符）装入花键内,然后装上卡箍3和6,并拧紧螺钉2和5。也可用粘接法固定元件4。
In the processing of intermittent surfaces on the workpiece, due to the existence of the impact and vibration, will inevitably affect the machining accuracy of the workpiece and cutting tool life. Now introduce a method of processing intermittent surface of the workpiece, you can overcome the above shortcomings and can improve the workpiece machining accuracy. As shown, on the outer surface of the workpiece 1, there are spline grooves and key grooves pre-ground. The component 8 into the keyway, the shape of its components, size, weight and milling keyway exactly match. Due to the unequal division of the keyway, the work piece is unbalanced. Therefore, the balance of the work piece must be calibrated on the grinding machine, and then the screw 7 is tightened to fix the element 8. Similarly, insert element 4 (element 4 into the spline groove, its shape, size and weight exactly) into the spline, then install the clamps 3 and 6 and tighten the screws 2 and 5. It is also possible to fix the element 4 with an adhesive method.