The purpose application of the cam

1. The law of movement of the gas valve stem stipulates the contour shape of the cam. When the cam profile with the change in sagittal diameter is in contact with the flat bottom of the gas valve stem, the air valve stem produces reciprocating motion; When the contour of the arc segment centered on the cam rotation center is in contact with the valve stem, the valve stem will be stationary. Therefore, with the continuous rotation of the cam, the valve stem can achieve intermittent, regular movements as expected.

2. When the cylindrical cam rotates, the side of the groove forces the swinging follower to swing, thereby driving the knife holder connected to it to move. As for the movement of the tool holder, it depends entirely on the shape of the groove.