一种环形产品内表面平整度测试装置
By designing a ring-shaped product inner surface inspection device with rollers and a positioning mechanism, the problems of poor adaptability and unstable positioning of existing devices are solved, achieving efficient and comprehensive inspection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU HUANYA IND TECH SERVICE CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing devices for testing the flatness of the inner surface of ring-shaped products have poor adaptability, requiring frequent adjustments to equipment parameters or replacement of tooling fixtures. The positioning is unstable, resulting in low testing efficiency and inaccurate results.
A detection device comprising rollers, pressure sensors, and a turntable was designed. By scanning the inner surface with rollers and combining a positioning mechanism with a positioning plate and a compression spring, a stable clamping and all-around detection of ring-shaped products can be achieved.
It improves the efficiency and coverage of inner surface inspection of ring-shaped products, enhances the versatility and ease of operation of the device, and ensures the reliability of the inspection results.
Smart Images

Figure CN224517756U_ABST
Abstract
Claims
1. A device for testing the flatness of the inner surface of a ring-shaped product, comprising a base (1), characterized in that: The base (1) has mounting bases (2) installed on both sides of its top surface. The two mounting bases (2) have a detection mechanism installed on their upper ends. The base (1) has a detection platform (3) installed in the middle of its top surface. The detection platform (3) has a rotating mechanism installed on both sides of its sides. The detection platform (3) has a turntable (4) installed on its upper end. The turntable (4) has a positioning mechanism installed on its upper end. The turntable (4) is located below the detection mechanism.
2. A device for testing the flatness of the inner surface of a ring-shaped product according to claim 1, characterized in that: The detection mechanism includes cylinders (5) mounted on the top surfaces of two mounting bases (2). Each cylinder (5) has a first mounting block (6) mounted on its output end. The inner sides of the two first mounting blocks (6) are rotatably connected to a lead screw (7). The rear end of the lead screw (7) is provided with a guide rod (8). The guide rod (8) is installed between the two first mounting blocks (6). A detection box (12) is threaded onto the lead screw (7). A pressure sensor (15) and an L-shaped mounting rod (13) are mounted on the bottom end of the detection box (12). A roller (14) is rotatably mounted on the bottom end of the mounting rod (13). The detection box (12) is slidably connected to the guide rod (8).
3. A device for testing the flatness of the inner surface of a ring-shaped product according to claim 2, characterized in that: A first motor (9) is mounted on the top surface of the first mounting block (6) on one side. A first drive gear (10) is mounted on the output shaft of the first motor (9). A first driven gear (11) is meshed with the lower end of the first drive gear (10). The center of the first driven gear (11) is fixedly connected to one end of the lead screw (7).
4. A device for testing the flatness of the inner surface of a ring product according to claim 1, characterized in that: The rotating mechanism includes a second motor (16) mounted on the top surface of the base (1). A second drive gear (17) is mounted on the output shaft of the second motor (16). The front end of the second drive gear (17) meshes with a second driven gear (18). A worm (19) is fixedly connected to the center of the second driven gear (18). A worm wheel (20) meshes with the rear end of the worm (19). A second mounting block is rotatably connected to both ends of the worm wheel (20). The second mounting block is mounted on the base (1). A rotating shaft is fixedly connected to the center of the worm wheel (20). The top end of the rotating shaft is connected to the center of the bottom surface of the turntable (4).
5. A device for testing the flatness of the inner surface of a ring product according to claim 1, characterized in that: The positioning mechanism includes multiple grooves on the periphery of the top surface of the turntable (4). Each of the three grooves is equipped with an L-shaped positioning plate (21). A positioning bolt (23) is threaded onto the positioning plate (21). A positioning block (24) is rotatably installed at the bottom of the positioning bolt (23). The bottom of the positioning block (24) abuts against the bottom surface of the groove.
6. A device for testing the flatness of the inner surface of a ring-shaped product according to claim 5, characterized in that: A compression spring (22) is installed inside the slide. One end of the compression spring (22) is connected to the inner side of the slide, and the other end of the compression spring (22) is connected to the lower end of the positioning plate (21).