A pneumatic component test fixture

By designing a pneumatic component test fixture with a main frame and buffer components, the problem of test parameters being affected by accidental human contact was solved, thus achieving stability and accuracy in the testing process.

CN224674723UActive Publication Date: 2026-08-25YINMI (NINGBO) TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522156151.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2026-08-25
Estimated Expiration
2035-10-13

AI Technical Summary

Technical Problem

Existing pneumatic component testing fixtures are easily damaged by accidental finger squeezing or impact when exposed to the elements, affecting the test parameters.

Method used

A fixture structure was designed, comprising a main frame, pressure plate, cylinder, transparent cover, limit rod, and buffer assembly. The transparent cover isolates the fixture's running parts to prevent accidental contact by personnel, and the buffer assembly reduces the impact of external impacts, ensuring the integrity of the testing process and the stability of performance.

Benefits of technology

It effectively prevents accidental contact by personnel and external impact, ensures the stability of the testing process and the accuracy of the test parameters, and adapts to the clamping requirements of components of different sizes.

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Abstract

The utility model relates to pneumatic element test fixture technical field, specifically disclose a pneumatic element test fixture, including main body frame, the main body frame is "L" letter type structure state setting, and the main body frame vertical plate body is slidably connected with the pressing plate, and the plate body of pressing plate is provided with buffer assembly, the front end fixed mounting of main body frame vertical plate body has the pneumatic cylinder, and the output end of pneumatic cylinder is connected together with the pressing plate, the top of main body frame is provided with protection component, and the top fixed mounting of main body frame horizontal plate body has the placing plate, the horizontal plate body of main body frame is provided with adjusting assembly, the buffer assembly includes guide rod, detection board and second spring, this pneumatic element test fixture, through transparent cover plate can be isolated to the fixture operating component, avoid personnel error touch to cause extrusion, impact and so on harm, also can buffer external article to the unexpected impact of fixture or the element of being detected.
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Description

Technical Field

[0001] This utility model relates to the field of pneumatic component testing fixtures, and more specifically to a pneumatic component testing fixture. Background Technology

[0002] Pneumatic component test fixtures are specialized tooling used to fix and position pneumatic components and simulate their actual working environment to test their performance, reliability, or sealing. They are the core tools for factory inspection, R&D testing, and troubleshooting of pneumatic components.

[0003] Chinese Patent No. CN222232516U discloses an electronic component testing fixture, including an insulating base, multiple terminals, multiple conductive pins, and multiple conductive blocks. The conductive blocks have positioning blind grooves on their surfaces. The conductive pins are fixedly connected to the conductive blocks, and each conductive pin passes through one end of a terminal and the insulating base, while the other end of the terminal extends outward. Using this invention, when the leads of an electronic component are inserted into the positioning blind grooves, an electrical connection is established between the leads and the conductive blocks, conductive pins, and terminals. The conductive blocks and terminals enlarge the external dimensions of the electronic component's leads that allow for electrical connection. When the user tests the electronic component, only alligator clips are needed to hold the terminals, ensuring smooth testing. This invention has the advantages of simple structure and convenient electronic component clamping.

[0004] Based on existing solutions and actual production and processing applications, existing pneumatic component testing fixtures, when testing devices, are in an exposed state. Furthermore, due to the mechanical operation of the fixture, accidental contact by personnel may lead to finger squeezing or impact, resulting in other accidental collisions with the fixture or the tested component, thereby affecting the testing parameters. Therefore, we propose a pneumatic component testing fixture to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a pneumatic component testing fixture to solve the problem mentioned in the background art that the current pneumatic component testing fixture is in an exposed state, which may be accidentally touched by personnel, resulting in fingers squeezing or impacting, and causing other accidental collisions to the fixture or the component being tested, thereby affecting the test parameters.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic component testing fixture, comprising a main frame,

[0007] The main frame is configured in an "L" shape, and a pressure plate is slidably connected to the vertical plate of the main frame. A buffer component is provided on the plate of the pressure plate. A cylinder is fixedly installed at the front end of the vertical plate of the main frame, and the output end of the cylinder is connected to the pressure plate. A protective component is provided at the top of the main frame, and a placement plate is fixedly installed at the top of the horizontal plate of the main frame. An adjustment component is provided on the horizontal plate of the main frame.

[0008] Preferably, the buffer assembly includes a guide rod, a detection plate, and a second spring. The guide rod is slidably connected to both ends of the pressure plate, and the guide rod is symmetrically arranged about the vertical central axis of the pressure plate. The detection plate is fixedly installed at the bottom of the guide rod, and the second spring is sleeved and connected to the outside of the guide rod.

[0009] Preferably, the protective component includes a transparent cover plate, a limiting rod, and a first spring, and the top of the vertical plate of the main frame is rotatably connected to the transparent cover plate, the upper end of the front end of the main frame is slidably connected to the limiting rod, and the first spring is sleeved and connected to the outer side of the limiting rod.

[0010] Preferably, the transparent cover is configured in an "L" shape, and a fixing block is fixedly installed at the bottom of the transparent cover, with the fixing block and the limiting rod being configured in a corresponding state.

[0011] Preferably, the adjustment assembly includes a slide groove, a clamping plate, and a bidirectional threaded rod. Slide grooves are fixedly installed at both ends of the top of the main frame, and the slide grooves are symmetrically arranged about the vertical central axis of the main frame. A clamping plate is slidably connected inside the slide groove, and a bidirectional threaded rod is rotatably connected at the middle position of the top of the main frame. The rod body of the bidirectional threaded rod is connected to the clamping plate by threads.

[0012] Preferably, the front side wall of the clamp plate has a through groove, and a sliding rod is fixedly installed inside the through groove. The rod is slidably connected to a positioning plate, and a third spring is sleeved on the rod and connected to the positioning plate.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects: the pneumatic component testing fixture can isolate the running parts of the fixture through the transparent cover plate, avoiding injury such as squeezing and impact caused by accidental contact by personnel. At the same time, it can also buffer the accidental impact of external objects on the fixture or the component being tested. Meanwhile, the cooperation between the pressure plate and the detection plate can avoid excessive impact on the component being tested during the descent, ensuring the integrity and performance stability during the testing process. Furthermore, by adjusting the clamping plate and the positioning plate, it can easily handle components of different diameters and lengths, thereby maintaining a constant clamping force and preventing the component from slipping, ensuring a stable and uninterrupted testing process.

[0014] 1. By pulling the limiting rod, the first spring is stretched due to the sliding of the limiting rod, and then the transparent cover is flipped. At the same time, the transparent cover is set to an "L" shaped structure state, thereby protecting the components and elements on the main frame through the transparent cover. Because the fixed block and the limiting rod are set in a corresponding state, the elastic force of the first spring can drive the limiting rod to reset and make the limiting rod and the fixed block lock together. The transparent cover can isolate the running parts of the fixture, avoid personnel accidentally touching it and causing squeezing, impact and other injuries, and at the same time buffer the accidental impact of external objects on the fixture or the component being tested.

[0015] 2. The cylinder drives the pressure plate to move, so that the detection plate comes into contact with the placement plate. The detection plate drives the guide rod to slide on the plate body of the pressure plate. The sliding of the guide rod drives the second spring to compress. The cooperation between the pressure plate and the detection plate can avoid excessive impact on the tested component during the descent, ensuring the integrity and performance stability during the test.

[0016] 3. The double-threaded rod is connected to the clamping plate by threads. By rotating the double-threaded rod, the clamping plate can slide in the groove. The component can be fixed by the mutual movement between the two sets of clamping plates. At the same time, the positioning plate can be pulled to slide on the rod body. The elastic force of the third spring can drive the positioning plate to reset. The reset of the positioning plate can fix the component. By adjusting the clamping plate and the positioning plate, components of different diameters and lengths can be easily handled, thereby maintaining a constant clamping force and preventing component slippage, ensuring a stable and uninterrupted testing process. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a top view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall closed structure of this utility model;

[0023] Figure 6This utility model Figure 4 A magnified structural diagram at point A in the diagram.

[0024] In the diagram: 1. Main frame; 2. Pressure plate; 3. Cylinder; 4. Transparent cover plate; 5. Limiting rod; 6. First spring; 7. Fixing block; 8. Guide rod; 9. Detection plate; 10. Second spring; 11. Slide groove; 12. Clamping plate; 13. Two-way threaded rod; 14. Through groove; 15. Slide rod; 16. Positioning plate; 17. Third spring; 18. Placement plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In order to address the technical problem that existing pneumatic component testing fixtures are exposed and may be accidentally touched by personnel during mechanical operation, resulting in fingers squeezing or impacting the fixture or the component being tested, thereby affecting the test parameters, this embodiment discloses the following technical content;

[0027] Please see Figures 1-6 A pneumatic component testing fixture includes a main frame 1, a pressure plate 2, a cylinder 3, a transparent cover plate 4, a limiting rod 5, a first spring 6, a fixing block 7, a guide rod 8, a detection plate 9, a second spring 10, a sliding groove 11, a clamping plate 12, a bidirectional threaded rod 13, a through groove 14, a sliding rod 15, a positioning plate 16, a third spring 17, and a placement plate 18.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, when testing a component, it is first placed on the surface of the placement plate 18. Since both ends of the top of the main frame 1 are fixedly equipped with sliding grooves 11, and these grooves 11 are symmetrically arranged about the vertical central axis of the main frame 1, a clamping plate 12 is slidably connected within the grooves of the sliding grooves 11. Furthermore, a bidirectional threaded rod 13 is rotatably connected to the middle position of the top of the main frame 1, and the rod of the bidirectional threaded rod 13 is threaded to the clamping plate 12. Simultaneously, a through groove 14 is provided at the front end of the side wall of the clamping plate 12, and a sliding rod 15 is fixedly installed inside the through groove 14. A positioning plate 16 is slidably connected to the sliding rod 15, and a third spring 17 is sleeved on the outside of the sliding rod 15 and connected to the positioning plate 16. When the component is placed on the surface of the placement plate 18, it can be adjusted according to… The size of the component pulls the positioning plate 16, causing the positioning plate 16 to compress the third spring 17 on the slide rod 15. This pulls the positioning plate 16 according to the size of the component. Then, the pulled positioning plate 16 can be released, and under the action of the elastic force of the third spring 17, the positioning plate 16 slides on the slide rod 15, thereby resetting the positioning plate 16. This allows the positioning plate 16 to push the component, causing the rear end of the component to fit against the main frame 1, thus limiting the component. Then, the bidirectional threaded rod 13 is rotated, causing the bidirectional threaded rod 13 to drive the clamping plate 12 to slide in the groove of the slide 11, and causing the two sets of clamping plates 12 to move closer to each other, thereby fixing the component on the surface of the placement plate 18. By adjusting the clamping plate 12 and the positioning plate 16, components of different diameters and lengths can be easily handled, and component slippage can be prevented, ensuring a stable and uninterrupted testing process.

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, after the component is placed and fixed, the transparent cover plate 4 on the top of the main frame 1 can be flipped. When flipping the transparent cover plate 4, the limiting rod 5 at the front end of the main frame 1 can be pulled, so that the limiting rod 5 drives the first spring 6 to stretch. Then the transparent cover plate 4 is flipped. Because the transparent cover plate 4 is set in an "L" shape, the transparent cover plate 4 covers the main frame 1 component. At the same time, a fixing block 7 is fixedly installed at the bottom of the transparent cover plate 4, and the fixing block 7 is set in a corresponding state with the limiting rod 5. Then the pulled limiting rod 5 can be released, and then the limiting rod 5 is driven to reset under the action of the elastic force of the first spring 6, so that the limiting rod 5 and the fixing block 7 are engaged together, and the main frame 1 and the transparent cover plate 4 are fixed together. The transparent cover plate 4 can form an isolation for the clamp running parts to avoid personnel accidentally touching and causing squeezing, impact and other injuries. At the same time, it can also buffer the accidental impact of external objects on the clamp or the component being tested.

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, after the transparent cover 4 is flipped to complete the protection, the cylinder 3 can be controlled by the controller to operate, thereby driving the pressure plate 2 to slide. Because the left and right ends of the pressure plate 2 are slidably connected to the guide rods 8, and the guide rods 8 are symmetrically arranged about the vertical central axis of the pressure plate 2, and the detection plate 9 is fixedly installed at the bottom of the guide rod 8, and the second spring 10 is sleeved and connected to the outside of the guide rod 8. When the cylinder 3 drives the pressure plate 2 to slide, the detection plate 9 comes into contact with the component, and the guide rods 8 slide on the plate of the pressure plate 2 during the descent of the pressure plate 2, thereby causing the guide rods 8 to drive the second spring 10 to stretch, so as to detect the component. Because the transparent cover 4 is set in an "L" shape, the object to be detected can be observed from the left and right sides of the transparent cover 4. Furthermore, the cooperation between the pressure plate 2 and the detection plate 9 can avoid excessive impact on the component to be detected during the descent, ensuring the integrity and performance stability during the test.

[0031] The above completes the series of operations for this pneumatic component testing fixture. Any content not described in detail herein is prior art known to those skilled in the art.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic component testing fixture, comprising a main frame (1), characterized in that: The main frame (1) is set in an "L" shaped structure, and a pressure plate (2) is slidably connected to the vertical plate of the main frame (1). A buffer component is provided on the plate of the pressure plate (2). A cylinder (3) is fixedly installed at the front end of the vertical plate of the main frame (1), and the output end of the cylinder (3) is connected to the pressure plate (2). A protective component is provided at the top of the main frame (1), and a placement plate (18) is fixedly installed at the top of the horizontal plate of the main frame (1). An adjustment component is provided on the horizontal plate of the main frame (1).

2. The pneumatic component testing fixture according to claim 1, characterized in that: The buffer assembly includes a guide rod (8), a detection plate (9), and a second spring (10). The guide rod (8) is slidably connected to both ends of the pressure plate (2). The guide rod (8) is symmetrically arranged about the vertical central axis of the pressure plate (2). The detection plate (9) is fixedly installed at the bottom of the guide rod (8). The second spring (10) is sleeved and connected to the outside of the guide rod (8).

3. A pneumatic component testing fixture according to claim 1, characterized in that: The protective assembly includes a transparent cover plate (4), a limiting rod (5) and a first spring (6), and the top of the vertical plate of the main frame (1) is rotatably connected to the transparent cover plate (4), the upper end of the front end of the main frame (1) is slidably connected to the limiting rod (5), and the first spring (6) is sleeved on the outer side of the limiting rod (5).

4. A pneumatic component testing fixture according to claim 3, characterized in that: The transparent cover plate (4) is set in an "L" shaped structure, and a fixing block (7) is fixedly installed at the bottom of the transparent cover plate (4), and the fixing block (7) and the limiting rod (5) are set in a corresponding state.

5. A pneumatic component testing fixture according to claim 1, characterized in that: The adjustment assembly includes a slide (11), a clamp (12), and a double-threaded rod (13). The slide (11) is fixedly installed at both ends of the top of the main frame (1). The slide (11) is symmetrically arranged about the vertical central axis of the main frame (1). The clamp (12) is slidably connected in the groove of the slide (11). The double-threaded rod (13) is rotatably connected at the middle position of the top of the main frame (1). The rod of the double-threaded rod (13) is connected to the clamp (12) by threads.

6. A pneumatic component testing fixture according to claim 5, characterized in that: The front side wall of the clamping plate (12) is provided with a through groove (14), and a slide rod (15) is fixedly installed inside the through groove (14). The slide rod (15) is slidably connected to a positioning plate (16), and a third spring (17) is sleeved on the slide rod (15). The third spring (17) is connected to the positioning plate (16).

Citation Information

Patent Citations

  • Electronic component test fixture

    CN222232516U