Radial positioning mechanism and radial position adjustment method of circular arc rolling guide rail

Abstract

The invention discloses a radial positioning mechanism and a radial position adjustment method of an arc rolling guide rail, belonging to the field of arc rolling guide rail structures. Including the inner adjustment block and the outer adjustment block, the bottom of the inner adjustment block is provided with the inner sliding block, the bottom of the outer adjustment block is provided with the outer sliding block, the inner sliding block and the outer sliding block are arranged in the installation groove of the arc rolling guide rail; the inner The adjustment block and the outer adjustment block clamp the track positioning surface of the arc rolling guide rail; the inner adjustment block is provided with an inner positioning block, and the outer adjustment block is provided with an outer positioning block; the inner positioning block and the outer positioning block are both There is a jacking wire hole for threading the jacking wire; the jacking wire of the inner positioning block presses on the inner adjusting block, the inner adjusting block fits closely with the inner surface of the arc rolling guide, and the jacking wire of the outer positioning block presses on the On the outer adjustment block, the outer adjustment block is closely attached to the outer surface of the arc rolling guide.

Description

technical field [0001] The invention belongs to the field of arc rolling guide rail structures, and relates to a radial positioning mechanism of an arc rolling guide rail and a radial position adjustment method. Background technique [0002] The arc rolling guide is a new type of rolling guide. The track of the guide is arc-shaped. The slider on the track can move in an arc along the guide. Multiple arc tracks are spliced ​​into a circle, and the slider on the track can realize the arc movement. Complete circular motion. The arc-shaped track needs to be on the same circle when splicing, so the radial position of each track needs to be adjusted during installation. [0003] Due to the limitation of the structure of the arc rolling guide, the diameter of the track top wire used for radial positioning and adjustment is small, generally figure 1 The height of the middle track positioning surface 21 is half of the height, which makes the track radial positioning rigidity and st...

AI Technical Summary

Problems solved by technology

[0003] Due to the limitation of the structure of the circular arc rolling guide, the diameter of the track jacking wire used for radial positioning and adjustment is small, generally figure 1 Half of the height of the positioning surface 21 of the middle track, which makes the radial positioning stiffness and strength of the track low. Under the action of a large radial load, the radial deformation of the track is large, which affects the rotation accuracy

In order to improve the rigidity and positioning accuracy, it is generally necessary to use a guide rail with a larger cross-sectional size, but this will increase the structural size and cost of the slewing mechanism

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