一九七九年,英国春季博览会上由Hydleman推荐展出的Bessey弓形夹是一种完全不同于我们通常使用的G形夹。弓形夹的主要零件是采用锻件淬火、回火使它抗弯而不破裂。它能牢固地夹紧工件,甚至在震动的情况下仍然夹得很紧。弓形夹有一个滑动横臂可以上下滑移。当螺杆头压块滑到离夹紧件表面一定位置时,扳 In 1979, the Bessey bow clip, recommended by Hydleman at the British Spring Fair, was a completely different G-clip than we normally used. The main part of the clip is the use of forging quenching, tempering it bending without cracking. It holds the work piece firmly, even in the vibrations. The bow clamp has a sliding cross arm to slide up and down. When the screw head slider slide to a certain position from the clamp surface, pull