我们在粗镗连杆盖半块时,过去以A、B、C面定位后加工(图1)。由于C面是毛坯面,因此镗出来的孔常常发生不对称现象。后来我们改进了夹具,克服了上述现象。当顺时针转动手柄(图2)时,滑块4在压缩弹簧5的作用下,沿导向杆6向下滑移,滑块4的斜面使卡爪3转动,将工件定位。继续顺时针转动手柄被,压块2将工件夹紧。逆时针转动手 We are rough boring rod cover half, the past to A, B, C surface positioning processing (Figure 1). As C surface is the blank surface, so boring holes often asymmetry. Later we improved the fixtures to overcome the above phenomenon. When turning the handle clockwise (Fig. 2), the slider 4 slides downward along the guide rod 6 under the action of the compression spring 5, and the slope of the slider 4 rotates the pawl 3 to position the workpiece. Continue turning the handle clockwise, clamp 2 clamps the work piece. Turn your hand counterclockwise