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如图所示的平口钳作一些简易改装,即可将钻床用的平口钳改装成快速可调式钻夹具。这种夹具尤其适用于装夹诸如距工件端面一定尺寸孔的圆形工件,也适用于装夹孔不对中的矩形工件。在平口钳固定钳口的顶面上铣或磨一浅槽,以便使钻模板能在槽内移动(调整用)。在钻模板的一端,压入一个可换式钻套,钻套位于钳口夹持面上方。用螺栓穿过钻模板腰形槽,并旋入固定钳口顶面上的螺孔,使钻模板固紧。在钻模板侧面装有一短柱销,
As shown in the flat-nose pliers for some simple modification, you can drill used flat nose pliers into quick adjustable drill fixture. This type of jig is particularly suitable for holding circular workpieces such as holes of a certain size from the end face of a work piece, and also for rectangular workpieces with incorrect fixing holes. Milling or grinding a shallow groove on the top surface of the jaws to allow the template to move (adjust) in the groove. At one end of the drilling template, a replaceable drill collar is pressed in and the drill collar is located above the clamping face of the jaws. Bolt through the groove of the drilling plate and screw it into the hole on the top of the fixing jaw to fasten the drilling template. A short pin is mounted on the side of the drilling template,