Coaxial cylindrical cam device with multiple pushing rods

Abstract

The invention relates to the field of mechanical transmission, in particular to a coaxial cylindrical cam device with multiple pushing rods. The coaxial cylindrical cam device with multiple pushing rods comprises a cylindrical cam and a guide cylinder; two or more cam curved slots are formed in the cylindrical cam; each cam curved slot is separately equipped with a driven part pushing rod correspondingly; and a guide straight slot is formed in the guide cylinder; and the guide straight slot is correspondingly arranged below the cam curved slots, so that the driven part pushing rods carry out linear motion along the guide straight slot. According to the coaxial cylindrical cam device, two or more driven part pushing rods are arranged on one cylindrical cam, so that the single problem due to the fact that one cam drives one driven part pushing rod is solved, and one cam drives the plurality of the driven part pushing rods with different lift ranges, and therefore, a relatively great mounting space is saved; and meanwhile, the plurality of the driven part pushing rods are output, so that the coaxial cylindrical cam device is compact and reasonable in structure, and realizes multi-displacement transmission effect during coaxial rotation of the pushing rods.

Description

technical field [0001] The invention relates to the field of mechanical transmission, in particular to a coaxial multi-push cylindrical cam device. Background technique [0002] The function of the spatial cylindrical cam mechanism is to transform the rotation of the cylinder into the linear motion of the follower push rod. As a driving element, the cylindrical cam mechanism is widely used in many industries such as robots, automatic machinery and optical lenses. With the precision development of the machinery industry, modern precision machinery has put forward higher requirements for the motion form, motion law and dynamic performance of the follower, and has developed from a single, simple structure to a variety and complexity. The traditional The basic mechanism of the machine often cannot meet the design requirements and use requirements very well. [0003] Most of the cam mechanisms currently on the market use a cam to drive a follower push rod. Although this cam stru...

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Problems solved by technology

[0008] The purpose of the present invention is: to adopt a cam to drive a follower push rod existing singleness in existing cam mechanism, and arrange a plurality of cams to drive when needing a plurality of followers, the space shortage that brings, structure For complex problems, a coaxial multi-push cylindrical cam device is provided, which solves the singleness problem of one cam driving one follower push rod by arranging multiple follower push rods on a cylindrical cam , so that one cam drives multiple follower push rods, which saves a large installation space, and outputs multiple follower push rods at the same time. The structure is compact and reasonable, and the transmission effect of coaxial rotating push rods with multiple displacements is realized.

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