Object gap fixing device and method

Abstract

The invention provides an object gap fixing device and method. The device comprises a movable top support, a fixed top support, a damping sleeve, an adjusting bolt and a locking nut, wherein the movable top support and the fixed top support are threaded coaxially, and are arranged between a first object and a second object which are temporarily fixed; the first end face of the fixed top support is connected to the second object; the second end face of the fixed top support is provided with a threaded hole which is axially communicated to the first end face; the outer wall of the movable top support is provided with an external thread in order to be threaded in the threaded hole; the movable top support is provided with an axially-communicated through hole; the damping sleeve is firmly inserted into the through hole, and forms interference fit; the adjusting bolt passes through the first object, the damping sleeve and the second object simultaneously in sequence; the adjusting bolt comprises a polished shaft segment positioned on the middle part and a threaded segment positioned on the tail part; the polished shaft segment forms interference fit with the inner wall of the damping sleeve; the threaded segment passes through the second object; the locking nut is screwed on the threaded segment. By adopting the object gap fixing device and method, a plurality of defects in the prior art are overcome, and the gap adjusting efficiency is further increased.

Description

technical field [0001] The invention relates to a fixing device and method, in particular to a device and method for adjusting the gap between supporting objects. Background technique [0002] For the production or assembly of arbitrary objects, it is particularly important to maintain a reasonable gap between adjacent objects. In order to solve the problem of maintaining the gap between precision objects in a particularly narrow space, people need to focus on developing some simple and practical methods for adjusting the above gap. device or structure. [0003] For example, the Chinese utility model patent whose patent number is 201220345230.8 discloses a kind of automotive instrument panel crossbeam gap adjustment nut assembly, and the gap adjustment nut assembly includes a clip and a fixed ferrule (2) on the instrument panel main beam (5). ), the fixed sleeve (2) is provided with a fixed nut (3), wherein the fixed nut (3) is nested with a rotating bolt (1), and the threa...

AI Technical Summary

Problems solved by technology

[0005] First, the gap distance between two adjacent objects (that is, the main beam and the body sheet metal) is limited by the stroke of the threaded section in the rotating bolt or fixing nut;

[0006] Second, since the fixed nut, the connecting bolt and the rotating bolt are all threaded connections, when the connecting bolt rotates fast and sometimes slowly, or the thread is rusted or slipped after a long period of use, The movement of the rotating bolt in the axial direction will be hindered and it is difficult to achieve the expected technical effect. It is necessary to pay attention to the use and maintenance of the object and replace it;

[0007] Third, under the action of long-term axial rotation force, the fixing method of the fixed ferrule through the clip is prone to fatigue failure. In order to ensure the buckling ability of the clip, it may be necessary to frequently replace the new fixed ferrule, which consumes materials and costs;

[0008] Fourth, it is only used in the automotive industry, and the technical field of application is relatively narrow

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