Micro-adjusting mechanism

Abstract

The invention relates to a micro-adjusting mechanism, which comprises an installation board (1), a left bracket (8) and a right bracket (10) with an oblique surface, the left and the right brackets with the oblique surface form a V-shaped bracket (14), and is also provided with a pair of supports(2, 2)which are respectively arranged on two ends of the installation board and are provided with a supporting hole and a reverse-flighted screw (5) which is respectively supported inside the supporting holes of the supports and is provided with two thread parts with different threading direction, the reverse-flighted screw which is supported inside the supporting hole of the support extends towards the outer side from any supporting hole, the left and the right brackets are respectively provided with an inner thread which is parallel to the bottom surface, the inner threads of the left and the right brackets are respectively screwed with the two thread parts of the reverse-flighted screw, when the reverse-flighted screw rotates, the relative distance to the left and the right brackets which are screwed with the reverse-flighted screw is varied, so the micro height variation of the steel pipe seam caused by the factors such as deformation and curvature of the steel pipe which is arranged on the oblique surface during the middle-frequency heating process can be micro-adjusted.

Description

Technical field [0001] The present invention relates to a bracket, in particular to a fine adjustment mechanism that can finely adjust the height of a supported object. Background technique [0002] There is no height fine-tuning mechanism in the equipment used for the intermediate frequency heating treatment of steel pipe welds, but when the steel pipe specification changes, the lifting mechanism is used to change the height of the support steel pipe to make the steel pipe center at a height suitable for intermediate frequency heating treatment. At present, the lifting mechanism used to adjust the height of the bracket is bulky, and the height adjustment of the bracket, that is, the height adjustment of the center of the steel pipe supported on the bracket, does not have a fine adjustment function. When the center height of the steel pipe changes slightly, such as the change of the outer diameter of the steel pipe, the deformation and bending of the steel pipe, etc., the height ...

AI Technical Summary

Problems solved by technology

When the center height of the steel pipe changes slightly, such as the change of the outer diameter of the steel pipe, the deformation and bending of the steel pipe and other factors cause the height change of the weld seam of the steel pipe during the intermediate frequency heating process, it is impossible to fine-tune the height of the bracket supporting the steel pipe, which will seriously affect Intermediate frequency heating treatment quality of steel pipe weld

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