Horizontal adjusting and fixing apparatus for detecting metal hardness

Abstract

The invention discloses a horizontal adjusting and fixing apparatus for detecting metal hardness. The horizontal adjusting and fixing apparatus comprises a carrier plate, and a first fastening plate,a second fastening plate, a third fastening plate and a fourth fastening plate hinged with the carrier plate, wherein the first fastening plate and the second fastening plate are pulled to rotate by virtue of the occlusion of a rack and a first gear under the effect of a first tightening screw, the third fastening plate and the fourth fastening plate are pulled to rotate by virtue of the occlusionof the rack and a second gear under the effect of a second tightening screw, a tested object can be fixed, the bottom of the carrier plate is provided with a plurality of threaded holes connected with an adjusting rod in a threading manner, one end of the adjusting rod is a threaded section, the other end of the adjusting rod is a smooth section, the smooth section is provided with a screwing head for screwing the adjusting rod, the threaded section is provided with scales, the lower surface of the bottom of the carrier plate is provided with a pointer, and the horizontal tuning of the uppersurface of the detected object is realized. By adopting the horizontal adjusting and fixing apparatus of the invention, the detected object can be reliably fixed, the detected object can be tuned locally on multiple points, the hardness test deviation can be reduced, and the structural stability can be improved.

Description

technical field [0001] The invention relates to the technical field of metal detection, in particular to a level adjusting and fixing device for metal hardness detection. Background technique [0002] At present, standard hardness testers are mostly used in the market to test the hardness of materials, and the hardness is calibrated according to the hardness index adopted by the hardness tester. Commonly used hardness indicators are as follows: [0003] 1. Brinell hardness; [0004] 2. Rockwell hardness; [0005] 3. Vickers hardness; [0006] Four, Webster hardness. [0007] Taking the Webster hardness tester based on the Webster hardness index as an example, the description is as follows: [0008] Principle: HW=20-L / 0.01, where L is the depth of the pressed sample, HW is the hardness index value of Webster hardness, and the indenter (diamond cone or quenched steel ball) is used to load (including preload and main load) ) under the action, the plastic deformation conce...

AI Technical Summary

Problems solved by technology

[0012] 1. The above-mentioned invention cannot fix the structure of the measured object. When the measured object is tested for levelness, the structural stability is poor, which easily leads to level deviation and lacks a flexible fastening mechanism;

[0013] 2. The above-mentioned invention is only limited to detecting the level of the measured object, and cannot precisely adjust the level of the measured object, and lacks a fine-tuning mechanism

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