Slide member rotation prevention device

Abstract

The present invention discloses a slide member rotation prevention device comprising a main body for placing a slide member, the slide member is provided with a guide groove, the main body is provided with a first guide round hole and a second guide round hole, the plane of the axle wire of the first guide round hole and the plane of the axle wire of the second guide round hole are not parallel to the sliding direction of the slider member; the slide member rotation prevention device further includes two guide conical-surface pins, the guide conical-surface pins are respectively inserted into the guide groove through the first guide round hole and the second guide round hole, and the guide conical-surface pins are respectively matched with gaps of the first guide round hole and the second guide round hole. The slide member rotation prevention device makes up for the lack of rotation during sliding of a slide member in a main body in the prior art, can effectively control a rotation gap of the slide member in the main body in micron level, meanwhile reduces machining requirements of the guide conical-surface pins and the guide groove, and improves production efficiency. In addition, the device also has the advantages of simple structure, easy processing and the like.

Description

technical field [0001] The invention relates to a device for preventing the rotation of a sliding part, in particular to a high-precision device for preventing the rotation of a sliding part. Background technique [0002] With the increasing number of precision instruments, the demand for precision parts is gradually increasing, especially the demand for precision sliding is particularly huge. Taking a cylindrical sliding part as an example, the sliding part is placed inside a main body, and the sliding part can slide up and down in the vertical direction in the main body. In order to prevent the sliding part from rotating in the main body, the traditional design method It is: setting a guide groove parallel to the sliding direction of the slider on the slider, setting a guide hole on the main body, and inserting a guide pin into the guide groove through the guide hole. This design method can generally prevent the slider from rotating in the main body through the cooperatio...

AI Technical Summary

Problems solved by technology

[0003] The technical problem solved by the present invention is that the guide holes and guide pins in the prior art cannot be closely matched, and there is a certain guide gap, which leads to the defect that the sliding part rotates in the main body, and a device for preventing the sliding part from rotating is provided

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