Cam mechanism is widely used because it can meet all kinds of complicated motion requirements, and its structure is simple and compact, and it can accurately realize the required motion law.
Cam mechanism is a high pair mechanism composed of cam, follower and frame. A cam is a part with a curved contour or groove, which is usually a moving part, and performs a constant-speed rotary motion or a reciprocating linear motion.
Cam mechanism is reliable in motion, so it is widely used in automatic machine tools, internal combustion engines, printing presses and textile machinery. However, the cam mechanism is easy to wear and has noise, and the design of high-speed cam is more complicated and the manufacturing requirements are higher.