一种内外径综合测量检具
By designing a comprehensive internal and external diameter measuring fixture, and utilizing pneumatic measurement principles and guide rail structure, the problem of low measurement accuracy in workpiece processing is solved. This achieves efficient, simple, and high-precision simultaneous measurement of internal and external diameters, making it suitable for rapid inspection of high-precision parts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANTONG WEIZHAO TECH CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the manual measurement of a single dimension after the workpiece is processed results in low measurement accuracy, which affects production efficiency and may lead to functional failure, thus failing to meet the requirements of high-precision assembly.
A comprehensive internal and external diameter measuring fixture was designed. Utilizing high-precision guide rails and pneumatic measurement principles, it senses the internal and external diameters of the workpiece through changes in air pressure, employs non-contact measurement, and achieves synchronous measurement by combining an air nozzle and spring sheet structure.
It achieves efficient and accurate measurement of inner and outer diameters, is suitable for mass production, reduces environmental requirements, is easy to operate, provides high accuracy in measurement data, has a long service life, and avoids damage to the surface caused by measurement forces.
Smart Images
Figure CN224517745U_ABST
Abstract
Claims
1. An inside and outside diameter combined measuring gauge comprising a worktable (14), characterized in that: Two sets of high-precision guide rails are arranged in parallel on the worktable (14). The guide rails include a first guide rail (8) and a second guide rail (9). A first slider (11) and a second slider (12) are provided on the first guide rail (8) and the second guide rail (9). A workpiece placement platform (13) is provided on the first slider (11) and the second slider (12). A V-shaped positioning block (2) is provided on the worktable at one end of the guide rail. A first air nozzle plate (3) and a second air nozzle plate (7) are symmetrically provided on both sides of the V-shaped positioning block (2). The inner side of one end of the first air nozzle plate (3) and the second air nozzle plate (7) is designed as a spring plate. The outer diameter of the workpiece is measured by sensing the air pressure change of the two nozzles. An air inlet connector (1) is provided on the side end of the V-shaped positioning block (2) and is connected to the air nozzle through a pipeline.
2. The inside and outside diameter comprehensive measuring gauge according to claim 1, characterized in that: The V-shaped positioning block (2) is provided with two symmetrical air outlets between the first guide rail (8) and the second guide rail (9) below it. The inner diameter of the hole can be measured by sensing the airflow or air pressure change of the nozzle. The nozzle is connected to the air inlet connector through a pipeline.
3. The inside and outside diameter comprehensive measuring gauge according to claim 1, characterized in that: A base plate (10) is provided below the first guide rail (8) and the second guide rail (9).
4. The inside and outside diameter comprehensive measuring gauge according to claim 1, characterized in that: The first air nozzle plate (3) and the second air nozzle plate (7) are respectively provided with a first spring plate (4) and a second spring plate (6) on one side of their lower ends.
5. The inside and outside diameter comprehensive measuring gauge according to claim 4, characterized in that: An outer diameter calibration piece (5) is installed below the first spring (4) and the second spring (6).