A vacuum pump gap inspection fixture

This vacuum pump gap inspection fixture, which uses pneumatic components to drive the slide in linear motion, solves the problem of spring wear during the locking process in existing technologies, achieving efficient and non-destructive gap inspection, and improving inspection efficiency and component life.

CN224455659UActive Publication Date: 2026-07-03SHENYANG HEYUAN TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522052367.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-24
Publication Date
2026-07-03
Estimated Expiration
2035-09-24

AI Technical Summary

Technical Problem

Existing vacuum pump clearance inspection fixtures are prone to spring wear, scratches, or permanent deformation during the locking process, affecting the accuracy and reliability of adjustments, reducing production cycle time and product qualification rate.

Method used

The slide is driven by a pneumatic component to move linearly, and combined with a digital dial indicator, it achieves automated and smooth feeding and unloading, avoiding manual bolt tightening. Non-destructive testing is achieved through the smooth pushing of the cylinder piston rod.

Benefits of technology

It improves testing efficiency and consistency, extends component lifespan, avoids component damage, and ensures measurement accuracy and production stability.

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Abstract

This utility model discloses a vacuum pump gap inspection fixture, specifically relating to the field of vacuum pump gap inspection technology. It includes a base mounted on top of a workbench, with support plates connected to the top and bottom of the base by screws. A linear motion assembly is located on the front side of the base for high-precision linear reciprocating motion. A clamping and measuring assembly is located at the bottom front of the base for non-destructive testing. The linear motion assembly includes a support, and the clamping and measuring assembly includes a crossbeam mounted on the front bottom of the support. Pressure blocks are located at both ends of the center of the front side of the crossbeam, and a fixing sleeve is fixed to the top of each pressure block. This utility model, through the combination of pneumatic drive and precision linear guide rails, achieves automated and smooth feeding and retraction of the fixture, replacing manual bolt tightening. This allows the clamping of the vacuum pump reference surface and the measurement of the gap by a dial indicator to be completed simultaneously, greatly improving inspection efficiency and consistency. Furthermore, the pneumatic flexible clamping avoids component damage and extends service life.
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Citation Information

Patent Citations

  • Gap inspection tool

    CN220552371U