In order to make the workpiece clamping reliable, it is common to narrow the portion where the claw is clamped to the workpiece to increase the contact stress. This method is easy to produce indentation and is not suitable for positioning a workpiece with a strict size. To this end, our factory changed to the following practices, and the effect is better. In order to increase the force point, a large arc can be used to clamp the arc. According to the principle of intersecting chords, it can be seen that RR' (Fig. 1), h
Clever use of three-jaw chuck