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cam buckle buckle straps

2018-03-29 11:17:48

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The principle of cam buckle
The oscillating or reciprocating motion of the cam urges the follower to reciprocate or oscillate. The cam has a curved profile or groove, and has a disc cam, a cylindrical cam, a moving cam, etc., wherein the groove curve of the cylindrical cam is a space curve and thus belongs to the space cam.
The follower and the cam are in point contact or line contact, and there are a roller follower, a flat bottom follower and a tip follower. The tip follower can keep in contact with any complicated cam profile and can realize any movement, but the tip is easy to wear and it is suitable for low speed mechanism with small transmission force. In order to always keep the follower in contact with the cam, a spring or gravity can be applied. Cams with grooves allow the follower to transmit a certain motion, one of the cams.
In general, the cam is active, but there are also driven or fixed cams. Most cams are single-degrees of freedom, but there are also dual-degree-of-freedom cams. The compact structure of the cam mechanism is best suited for applications where intermittent motion of the follower is required. Compared with similar hydraulic and pneumatic mechanisms, it is reliable in motion and is therefore widely used in automatic machine tools, internal combustion engines, printing presses and textile machines. However, the cam mechanism is easy to wear and has noise. The design of the high-speed cam is more complicated and the manufacturing requirements are higher.
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