图上所表示的是将两个直角形零件夹持在一起的焊接卡钳,用这种夹钳能使两零件焊接得很紧密。使用这种卡钳时,先将钳子套在两个零件上,当两个手两被握紧时,靠铰链系统先进行定位,紧接着就夹紧。用这种卡钳不像一般用的套索式夹钳那样要把钳子紧销起来,也不需要用手始终握 The figure shows a welding caliper that holds two right-angled parts together so that the two parts can be welded very tightly. When using this caliper, the pliers are first placed over the two parts, and when the two hands are gripped, they are first positioned by the hinge system and then clamped. Unlike the usual lasso clamps, which use the caliper to tighten the pliers and do not need to be held by hand