Vertical-surface wheel chute chromium-alloy periphery-adjustable engineering rubber clamp

Abstract

The invention relates to a clamp for glass testing, especially to a vertical-surface wheel chute chromium-alloy periphery-adjustable engineering rubber clamp. The clamp comprises four glide clamps with a same structural size, i.e., a first glide clamp, a second glide clamp, a third glide clamp and a fourth glide clamp, and each glide clamp is composed of a clamp part and a glide part. According to an improved embodiment, the glide part of each glide clamp comprises a lower glide plane, a vertical plate inner side surface and a rolling and gliding wheel; an outwardly protruding regulation block is provided with a regulation screw; the outer vertical surface of each glide clamp is provided with a wheel chute; a centrosymmetric transition groove is arranged between the wheel chute and the outer vertical surface of each glide clamp; the bottom of the wheel chute is a bottom chute plane; an I-shaped groove protruding rail is arranged in the middle of the wheel chute; the vertical plate inner side surface is provided with a stepped pivot pin; the stepped pivot pin is provided with a wheel hole cooperation segment; a pivot pin step is arranged between the wheel hole cooperation segment and the stepped pivot pin; the outer end of the wheel hole cooperation segment is the outer end of the pivot pin; the center of the outer end of the pivot pin is provided with a pivot pin screw; and an inner wheel hole is in rotary fitting with the outer circle of the wheel hole cooperation segment, so accurate fine adjustment is realized.

Description

technical field [0001] The invention relates to a glass testing clamp, classification number: G01N3 / 04, in particular to such a kind of engineering rubber clamp which can be enlarged or reduced around and used for testing the strength of glass. Background technique [0002] The existing tempered glass fragment test method is to place the tempered glass sample freely on the test bench, and use scotch tape paper or other methods to constrain the glass periphery, or cover the tempered glass with a film to prevent the glass fragments from splashing. On the center line of the longest side of the sample, about 20 mm away from the periphery, impact with a pointed hammer or punch with a tip curvature radius of 0.2 mm±0.05 mm to break the sample, and within 20 mm of the edge of the product and The number of fragments within a circle with a radius of 75mm centered on the impact point is not checked. Measures to preserve the debris pattern should begin 10 s after impact and end with...

AI Technical Summary

Problems solved by technology

This method is not only inconvenient to operate, but takes a long time, and the tape is a disposable product, which is easy to cause waste and pollution, and the tape residue on the test bench must be removed after each test to remove the broken glass, otherwise , the remaining glass fragments will affect the next experimental test operation

[0003] At the same time, the adhesive tape is also likely to be broken by the force of the tempered glass explosion, causing the operator to be injured. Therefore, it is very necessary to improve the tempered glass fragment test device

[0004] Chinese patent application number: 201420595067.X, test device for tempered glass shards, proposed some new methods and measures to deal with brittle glass clamps, but it is still impossible to adjust the size at will, and it is impossible to make the four sides of the retaining walls in place on the same plane

At least one side of the patent must not be in contact with the test bench surface

What is referred to as the suspended retaining wall 5 in the embodiment cannot be in contact with the base 1 simultaneously with other three-sided retaining walls, so the retaining piece 4 has to be used to make up the gap between the suspended retaining wall 5 and the base 1, resulting in four Uneven surrounding force

In addition, the width of the baffle 4 itself is fixed, and only multi-piece splicing can be used, and continuous changes of different widths cannot be achieved.

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