Vertical disc-shaped cam with small cam arranged internally

Abstract

The invention provides a vertical disc-shaped cam with a small cam arranged internally. The vertical disc-shaped cam comprises a cam main body arranged vertically, a cam transmission shaft, and a caminner cavity arranged in the cam main body. A first adjusting cam, a second adjusting cam and a third adjusting cam are installed in the cam inner cavity in a rotating manner. The first adjusting cam,the second adjusting cam and the third adjusting cam are arranged on a long shaft of the cam main body and are sequentially arranged at intervals in the direction close to the transmission shaft. Thefirst adjusting cam, the second adjusting cam and the third adjusting cam are connected with torsion springs, and therefore in the static state, protruding points of the first adjusting cam, the second adjusting cam and the third adjusting cam are arranged in the manner of facing the transmission shaft. According to the vertical disc-shaped cam, the gravity center of the cam main body deviates, torque needed by starting is reduced, in the using process, impact loads will not be generated, the cam main body operates stably, the transmission requirement for high precision can be met, and the vertical disc-shaped cam cannot be damaged easily and is long in service life.

Description

technical field [0001] The invention belongs to the technical field of cams, in particular to a vertical disc cam with a built-in small cam. Background technique [0002] Cam means a mechanical rotating or sliding member (such as a wheel or a protrusion of a wheel) that transmits motion to a roller moving against its edge or to a needle bar that moves freely on a grooved surface, or from such rollers and Bearing force in the needle bar. Cam followers can be designed to satisfy almost any input-output relationship within their range of motion. A disc cam is a cam of a disc-shaped member that rotates about a fixed axis and has a varying diameter. The Chinese utility model patent with the application number 201520610320.9 discloses a dynamic energy-saving cam, which relies on the internal elastic mechanism to push the counterweight to move, and cooperates with the centrifugal force when the cam rotates to move the center of gravity of the cam outward, thereby realizing the co...

AI Technical Summary

Problems solved by technology

However, there are the following problems in its use: during the start and stop of the cam, the counterweight will collide with the cam shell, and the cam will not run smoothly, which makes it unable to meet the needs of precision transmission, and the collision will easily cause the cam shell to Damage to the counterweight, resulting in a shorter service life of the cam

Aiming at the problems of fixed center of gravity and unstable operation of cams in the prior art, the present invention intends to improve a vertical disc cam with a built-in small cam, which can adjust the center of gravity of the cam, thereby facilitating the start and stop of the cam without impact permanent load, smooth operation

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