Cylinder pressing device for ICT test
By introducing a pressure module and a test mounting fixture into the ICT test fixture, and utilizing rolling friction and an automatic reset mechanism, the problems of adapter card wear and structural complexity are solved, resulting in a smaller footprint and higher test stability.
Patent Information
- Application Number
- CN202422727824.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-08
AI Technical Summary
Existing ICT test fixtures suffer severe wear when pressing the adapter card, have a complex structure, occupy a large space, and lack an automatic reset mechanism.
It adopts a pressure module and test installation fixture, combined with a drive device, pressing device, return spring and rolling parts, to reduce wear and achieve automatic reset through rolling friction, and uses pen-shaped cylinder and equal height screw to form a compact structure.
It reduces wear on the adapter card surface, simplifies the structure, reduces space occupation, and supports automatic reset, thus improving the stability and efficiency of testing.
Smart Images
Figure CN223538929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ICT electrical testing, and in particular to a cylinder pressing device for ICT testing. Background Technology
[0002] ICT (Inductively Coupled Circuit) electrical testing is a method for testing the electrical performance of circuit boards. It uses a bed of pins connected to pre-arranged test points on the circuit board to detect the electrical properties of all components and check for open or short circuits in the solder joints. ICT testing can quickly locate and repair faults, improving the quality and reliability of circuit boards and reducing repair and debugging time and costs.
[0003] In the side-mounted card testing of the MXM3.0 connector (female to male), the ICT fixture used required the adapter card to be swung and pressed after horizontal insertion to achieve signal conduction. The existing structure uses direct contact when pressing the adapter card, resulting in significant surface wear and the lack of an automatic reset mechanism, leading to a complex overall structure and large footprint.
[0004] Therefore, it is essential to develop a pressing device that is simple in structure, has low friction, and can automatically reset. Utility Model Content
[0005] To address the problems existing in the prior art, this utility model proposes a cylinder pressing device for ICT testing that has a simple structure and causes minimal wear on the adapter card.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a pressing module and a test mounting fixture. The test mounting fixture is located directly below the pressing module. The pressing module includes a driving device and a pressing device. The lower end of the driving device is provided with a cylinder fixing block with a countersunk through hole. A leveling screw and a return spring are provided in the countersunk through hole. The leveling screw passes through the return spring and the countersunk through hole in sequence and is fixedly engaged with the pressing device. The bottom end of the pressing device is provided with a rolling element. An adapter is installed on the test mounting fixture. During testing, the driving device drives the rolling element to press down, realizing a swinging and pressing test action on the adapter. After the pressing action is completed, the pressing device resets under the pushing force of the return spring.
[0007] Based on the above, the pressing module of this utility model forms a reset mechanism by using equal-height screws and a reset spring, resulting in a simple structure and convenient maintenance. Simultaneously, the pressing device is equipped with rolling elements, ensuring that rolling friction occurs when the pressing module presses the adapter card, reducing frictional force and significantly minimizing wear on the adapter card surface while maintaining testing stability.
[0008] Furthermore, the rolling element includes a rotating shaft and a deep groove ball bearing. The deep groove ball bearing is rotatably engaged with the bearing fixing block via the rotating shaft. The upper end of the bearing fixing block is connected to the output rod of the drive device. The equal-height screws are located on both sides of the output rod and are fixedly engaged with the upper end of the bearing fixing block.
[0009] Based on the above, the output rod is used to push the bearing fixing block and drive the deep groove ball bearing to press down. After the pressing action is completed, the equal height screw drives the bearing fixing block to move up under the action of the return spring to reset.
[0010] Furthermore, the driving device includes a pen-shaped cylinder, the upper end of which is provided with an air pipe connector, and the lower end of which is fixedly engaged with the upper end of the cylinder fixing block.
[0011] Based on the above, the pen-shaped cylinder is used to drive the pressing device to press down on the adapter plate. At the same time, the pen-shaped cylinder has the characteristics of compact structure, support for multiple free installation methods, easy to operate stably in narrow spaces and occupying small volume, which can allocate space more reasonably.
[0012] Furthermore, the upper part of the test mounting fixture is provided with several limiting screws, the adapter is fixedly installed by the limiting screws, and the lower end face of the test mounting fixture is provided with a tension spring.
[0013] Based on the above, when the pressing device presses down on the adapter card, one end of the test mounting fixture swings downward and the other end tilts upward. At this time, the tension spring is in a stretched state. After the adapter card test is completed, the pressing device returns to its original position under the action of the reset spring, and at the same time, the tension spring pulls the test mounting fixture back to its original position.
[0014] Furthermore, the pressing modules are symmetrically arranged on the mounting plate.
[0015] Based on the above, the symmetrically arranged pressing modules can make the pressing device apply more even pressure to the adapter card, avoiding excessive torque that could damage the adapter card.
[0016] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0017] Figure 1 : This is an exploded view of the pressing module;
[0018] Figure 2: This is a perspective view of the present invention.
[0019] Explanation of reference numerals: 1. Pressing module; 2. Test mounting fixture; 3. Drive device; 4. Pressing device; 5. Countersunk through hole; 6. Cylinder fixing block; 7. Equal height screw; 8. Return spring; 9. Rolling element; 10. Adapter; 11. Bearing fixing block; 12. Output rod; 13. Pen-type cylinder; 14. Air pipe connector; 15. Limit screw; 16. Tension spring; 17. Rotary shaft; 18. Deep groove ball bearing; 19. Mounting plate. Detailed Implementation
[0020] like Figures 1 to 2 As shown, a cylinder pressing device for ICT testing includes a pressing module 1 and a test mounting fixture 2. The test mounting fixture 2 is positioned directly below the pressing module 1. The pressing module 1 includes a driving device 3 and a pressing device 4. A cylinder fixing block 6 is provided at the lower end of the driving device 3. The cylinder fixing block 6 has symmetrically arranged countersunk holes 5. A leveling screw 7 and a return spring 8 are disposed within the countersunk holes 5. The leveling screw 7 passes sequentially through the return spring 8 and the countersunk holes 5 to securely engage with the pressing device 4. The leveling screw 7 and the return spring 8 cooperate to form a reset mechanism. This reset mechanism has a simple structure, occupies little space, makes the overall structure of this invention more compact, and facilitates later maintenance. The pressing device 4 includes a bearing fixing block 11 and a rolling element 9. The upper end of the bearing fixing block 11 is connected to the output rod 12 of the driving device 3. The rolling element 9 includes a rotating shaft 17 and a deep groove ball bearing 18. The deep groove ball bearing 18 rotates with the bearing fixing block 11 through the rotating shaft 17. An adapter 10 is installed on the test mounting fixture 2. During testing, the driving device 3 drives the deep groove ball bearing 18 to press down, realizing a swinging and pressing test action on the adapter 10. Under the push of the return spring 8, the pressing device 4 is reset. During the contact between the deep groove ball bearing 18 and the adapter 10, rolling friction occurs, reducing friction and significantly reducing wear on the surface of the adapter 10 while ensuring test stability.
[0021] Preferably, the driving device 3 includes a pen-shaped cylinder 13, with an air pipe connector 14 at its upper end and the lower end of the pen-shaped cylinder 13 fixedly engaged with the upper end of the cylinder fixing block 6. The pen-shaped cylinder 13 is used to drive the pressing device 4 to press down on the adapter plate. Furthermore, the pen-shaped cylinder 13 features a compact structure, supports various free-style installation methods, facilitates stable operation in confined spaces, and occupies a small volume, allowing for more efficient space allocation.
[0022] Preferably, the upper part of the test mounting fixture 2 is provided with several limiting screws 15, and the adapter 10 is fixedly installed by the limiting screws 15. A tension spring 16 is provided on the lower end face of the test mounting fixture 2. When the pressing device 4 presses down on the adapter 10, one end of the test mounting fixture 2 swings downward and the other end tilts upward. At this time, the tension spring 16 is in a stretched state. After the test of the adapter 10 is completed, the pressing device 4 returns to its original position under the action of the return spring 8, and at the same time, the tension spring 16 pulls the test mounting fixture 2 back to its original position.
[0023] Preferably, the pressing modules 1 are symmetrically arranged on the mounting plate 19. The equidistant arrangement of the pressing modules 1 allows for more balanced pressure when the pressing device 4 presses the adapter card 10, avoiding excessive torque that could damage the adapter card 10.
[0024] The specific implementation of this embodiment is as follows: During testing, two pen-shaped cylinders 13 are activated simultaneously. The output shaft of each pen-shaped cylinder 13 pushes the bearing fixing block 11, causing the deep groove ball bearing 18 to press down. One end of the adapter 10 swings downward under the pressure of the deep groove ball bearing 18, while the other end tilts upward, ultimately achieving signal conduction for testing. After the test, the deep groove ball bearing 18 returns to its original position under the action of the return spring 8, and simultaneously, the tension spring 16 pulls the test mounting fixture 2 back to a horizontal position. During the contact between the deep groove ball bearing 18 and the adapter 10, rolling friction occurs, reducing frictional force and significantly reducing wear on the surface of the adapter 10 while ensuring test stability.
[0025] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.
Claims
1. A cylinder pressing device for ICT testing, characterized in that, It includes a pressing module (1) and a test mounting fixture (2), the test mounting fixture (2) being positioned directly below the pressing module (1). The pressing module (1) includes a driving device (3) and a pressing device (4). The lower end of the driving device (3) is provided with a cylinder fixing block (6) with a countersunk through hole (5). The countersunk through hole (5) is provided with an equal-height screw (7) and a return spring (8). The equal-height screw (7) passes through the return spring (8) and the cylinder fixing block (6) in sequence. The countersunk hole (5) is fixedly engaged with the pressing device (4). The bottom end of the pressing device (4) is provided with a rolling element (9). The test mounting fixture (2) is equipped with an adapter (10). During the test, the driving device (3) drives the rolling element (9) to press down, thereby realizing the test action of swinging and pressing down the adapter (10). After the pressing action is completed, the pressing device (4) is reset under the thrust of the reset spring (8).
2. The cylinder pressing device for ICT testing according to claim 1, characterized in that: The rolling element (9) includes a rotating shaft (17) and a deep groove ball bearing (18). The deep groove ball bearing (18) is rotatably engaged with the bearing fixing block (11) through the rotating shaft (17). The upper end of the bearing fixing block (11) is connected to the output rod (12) of the drive device (3). The equal height screw (7) is located on both sides of the output rod (12) and is fixedly engaged with the upper end of the bearing fixing block (11).
3. The cylinder pressing device for ICT testing according to claim 1, characterized in that: The driving device (3) includes a pen-shaped cylinder (13), the upper end of which is provided with an air pipe connector (14), and the lower end of which is fixedly engaged with the upper end of the cylinder fixing block (6).
4. The cylinder pressing device for ICT testing according to claim 1, characterized in that: The upper part of the test installation fixture (2) is provided with several limiting screws (15), the adapter (10) is fixedly installed by the limiting screws (15), and the lower end face of the test installation fixture (2) is provided with a tension spring (16).
5. A cylinder pressing device for ICT testing according to claim 1, characterized in that: The pressing module (1) is symmetrically arranged on the mounting plate (19).