我们制作了一副钻孔夹具,操作使用极为方便可靠,只需对测量头钻一小孔就可使钢球换向,且一只测量头的钢球可以反复多次进行换向使用。夹具的结构如图所示。操作时,第一步将测量头螺纹部分(M3或M2.5)旋入夹具件2座块的螺孔上,然后,置夹具于钻床上,用钻头(Φ1.2或Φ1)打一小孔至钻头碰到钢球止,轻轻一戳钢球即落出。第二步旋下测量头,将钢 We made a drilling fixture, the operation is extremely easy to use and reliable, just a small hole on the probe can make the ball to the commutation, and a measuring head of the ball can be repeatedly used for commutation. Fixture structure as shown. Operation, the first step of the probe thread part (M3 or M2.5) screwed into the fixture block 2 block screw hole, and then set the fixture on the drilling machine, drill bit (Φ1.2 or Φ1) hit a small Hole to the drill hit the ball only, gently poking the ball that is falling. The second step unscrew the measuring head, the steel