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Testing fixture

A technology of inspection tools and shaft sleeves, applied in the field of inspection tools, can solve problems such as the inability of measuring tools to detect

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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For workpieces such as special-shaped cylinders, conventional measuring tools cannot be used to detect them. Therefore, how to design a new type of measuring tool has become a current problem.

Method used

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  • Testing fixture

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Embodiment Construction

[0010] refer to figure 1 , a checking device of the present invention, including a shaft 1, a shaft sleeve 2, a bellows sleeve 3, a nut 4 and a measuring stick 5. The shaft sleeve 2 is sleeved on one end of the shaft 1, the corrugated sleeve 3 is sleeved on the shaft sleeve 2, the nut 4 is threadedly connected with the shaft sleeve 2, and the nut 4 is in contact with the axial end surface of the corrugated sleeve 3. The measuring stick 5 is fixed on one end of the shaft 1 . The shaft 1 is provided with knurling 6 on its body. Alternatively, a plastic sleeve is provided on the body of the shaft 1, and the plastic sleeve and the shaft 1 are bonded and fixed as one.

[0011] When measuring, install the inspection tool into the inner hole of the cylinder body 1, turn the nut 4 to apply pressure to the corrugated sleeve 3, and the corrugated sleeve 3 will expand and tighten in the special-shaped cylinder body after being compressed by the nut. Pull the shaft 1 outwards to make t...

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Abstract

The invention relates to a testing fixture. The testing fixture comprises a shaft, a shaft sleeve, a corrugated sleeve, a nut and a measuring scale. The shaft sleeve sleeves one end of the shaft, the corrugated sleeve sleeves the shaft sleeve, the nut is in threaded connection with the shaft sleeve, the nut is in contact with the axial end face of the corrugated sleeve, and the measuring scale is fixed at one end of the shaft. The testing fixture provided by the invention can accurately measure whether the perpendicularity of the orifice face of an irregularly-shaped cylinder with the center line of the cylinder is qualified or not.

Description

technical field [0001] The invention relates to a checking tool. Background technique [0002] For the processing of special-shaped cylinder workpieces, holes are usually processed on the special-shaped cylinder. The requirement for the hole is that the end face of the hole is perpendicular to the center line of the cylinder, and the verticality is 0.1mm. Therefore, after processing, it is necessary to Check it out. For workpieces such as special-shaped cylinders, conventional measuring tools cannot be used to detect them. Therefore, how to design a new type of measuring tool has become a current problem. Contents of the invention [0003] In view of the above-mentioned technical problems, the main purpose of the present invention is to provide a checking tool, which can accurately measure whether the perpendicularity between the end surface of the hole of the special-shaped cylinder body and the center line of the cylinder body is qualified. [0004] A checker includes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/245
Inventor 霍理