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本厂生产的数控加工中心机床上有许多轴上键槽的对称度要求达到0.01mm,在一般铣床上加工难以达到要求。作者利用圆上一点绕圆心旋转180°后,两点对于圆心对称的原理设计了一专用夹具,很好地解决了此问题。将模座2用定位键6和螺钉固定在铣床工作台上,将工件夹紧在V型块4上,分度销对准零刻度,拧紧夹紧机构5,加工键槽一侧去掉所留余量的三分之二。然后切削进给不动,只允许上下抬起铣刀,将
The factory production of CNC machining centers have many axes on the axis of the symmetry of the requirements of 0.01mm, in the general processing difficult to meet the requirements of milling machines. The author uses a circle on the circle around the center of rotation 180 °, the two points for the center of the circle of symmetry principle designed a special fixture, a very good solution to this problem. The mold base 2 with the positioning keys 6 and screws fixed on the milling table, the workpiece clamping V-block 4, indexing pins aligned zero scale, tighten the clamping mechanism 5, the side of the keyway to remove the remaining Two thirds of the volume. Then the cutting feed does not move, only allowed to lift the cutter up and down