Wall thickness difference detector

Abstract

The invention belongs to the field of detection meters, in particular to a wall thickness difference detector which is characterized in that a detected product turntable and a feeding measuring console are arranged on a stand, the detected product turntable has a driving roller and an auxiliary roller which are arranged on the stand side by side, the feeding measuring console has a roller arranged on a guide rail, an upright post is connected with and arranged on a splint, an adjustable measuring pull rod is sleeved on the upright post, a hole wall measuring contact is connected with and arranged at the extending end of the measuring pull rod, and a dial indicator is connected with and arranged on the upright post corresponding to the measuring pull rod. Compared with a traditional wall thickness difference detector mode, the invention can comprehensively detect the wall thickness differences of various axial points of the product, has the advantages of improved detection accuracy, convenient operation and low skill requirement, is suitable for detecting the wall thickness differences of different calibers in various places, and the like.

Description

technical field [0001] The invention belongs to the field of measuring instruments, relates to a wall thickness difference measuring instrument, and in particular relates to a wall thickness difference detector. Background technique [0002] For products such as half-shaft sleeves, after hot stamping, the product often has different degrees of misalignment between the inner hole and the outer circle. At present, vernier calipers are generally used to test the product, and three points are selected on the circumference of the end face of the product. The wall thickness is measured at the site, and the difference between the measured maximum data and the minimum data is the wall thickness difference. The traditional method of detecting wall thickness difference has the following defects: [0003] 1. Due to the uneven wall thickness of the product, the three selected measurement points do not necessarily represent the maximum and minimum wall thickness of the product, so the m...

AI Technical Summary

Problems solved by technology

[0003] 1. Due to the uneven wall thickness of the product, the selected three measurement points do not necessarily represent the maximum and minimum wall thickness of the product, so the measurement data has large errors and low accuracy

[0004] 2. Only the wall thickness at the end of the product can be measured, and the rest of the parts are difficult to detect, so it is impossible to test the wall thickness difference at each point on any axial section of the product

[0005] 3. The false detection rate is high, up to 5-10%, and the product needs subsequent processing after leaving the factory

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