A fixture for simultaneously testing the functions of four small plates
By designing a fixture that can simultaneously test four types of small boards, the problems of low equipment utilization and cumbersome manual operation in traditional testing have been solved, enabling efficient and accurate multi-board testing and improving testing efficiency and equipment utilization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUMA-USI ELECTRONICS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional small board functional testing suffers from low equipment utilization, cumbersome manual operation, low testing efficiency, and complicated testing process, leading to increased costs.
Design a fixture for simultaneously testing four types of small boards, including an upper mold assembly, a pin carrier board assembly, and a bottom frame assembly. It adopts a precise positioning system, a flexible and stable pressing module, and an optimized operating space layout, and is equipped with a variety of electronic components to meet diverse testing needs.
It significantly shortens testing time, improves testing efficiency, reduces equipment downtime, enhances the smoothness and accuracy of the testing process, reduces the complexity of manual operations, and improves overall testing efficiency.
Smart Images
Figure CN224436527U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of testing fixture technology, and more specifically, to a fixture for simultaneously testing the functions of four small plates. Background Technology
[0002] Traditional small-board functional testing commonly employs a "one-to-one" approach, which has several drawbacks. Firstly, equipment idle time is long. Test equipment such as oscilloscopes, signal generators, and power supplies require time for connection and parameter settings when testing a single small board. After completing one board test, the same settings must be repeated for the next, resulting in low equipment utilization due to prolonged waiting time. Secondly, manual operation is crucial. Each board replacement requires manual plugging and unplugging of test cables, and manual data recording and result analysis are also necessary, making the process cumbersome and time-consuming. Furthermore, the testing process is complex. Even with identical functions, each small board requires a complete series of test steps, and the test environment may need to be reconfigured between different projects, extending testing time. These problems lead to low testing efficiency and increased costs.
[0003] Therefore, this application proposes a fixture for simultaneously testing the functions of four small plates to solve the aforementioned problems. Utility Model Content
[0004] To address the aforementioned issues, this application provides a fixture for simultaneously testing the functions of four small plates.
[0005] The fixture for simultaneously testing the functions of four small plates provided in this application adopts the following technical solution:
[0006] A fixture for simultaneously testing four types of small plates includes an upper mold assembly, a pin carrier plate assembly, and a bottom frame assembly.
[0007] The upper mold assembly is movably mounted above the bottom frame assembly, and the pin carrier plate assembly is installed inside the upper mold assembly for placing the small plate to be tested;
[0008] The upper mold assembly includes a mounting plate connected to the bottom frame assembly, and the pin carrier plate assembly is located on the mounting plate;
[0009] The mounting plate is symmetrically provided with fixing members, and the pressing module is movably mounted on the fixing members; the pressing module includes a connecting plate, a pressure plate and a supporting plate, the connecting plate is movably connected to the fixing members, the supporting plate is fixedly mounted above the connecting plate, and four vertical guide shafts are movably mounted on the supporting plate. The four guide shafts are arranged in a rectangle and pass through the supporting plate. The bottom of the guide shafts is fixedly connected to the pressure plate, and a first gas spring is connected between the connecting plate and the mounting plate.
[0010] A downward handle is movably provided on the top of the overhead panel. The moving point of the downward handle is located between the front and rear adjacent guide shafts, and the moving trajectory of the downward handle covers the guide shafts.
[0011] The needle carrier plate assembly includes a carrier plate body for placing the small plate to be tested. The bottom of the pressure plate is provided with a plurality of positioning rods, and the carrier plate body is provided with oil seals that match the plurality of positioning rods.
[0012] Several electronic devices are disposed inside and outside the frame of the bottom frame assembly.
[0013] Furthermore, the surface of the carrier plate body is also provided with a plurality of first springs, the highest point of the first springs in the uncompressed state being located within the downward pressing stroke of the pressure plate.
[0014] With the above technical solution, when the pressure plate is pressed down, the first spring, relying on its elastic properties, first contacts and compresses the pressure plate, providing reliable buffering for the small plate and avoiding hard damage. The force generated after the test is completed makes it easy for the user to lift it upwards.
[0015] Furthermore, it also includes multiple power-on modules for testing. The mounting plate is provided with horizontally oriented side-insertion modules, and the pressure plate is provided with vertically downward-facing pressure modules. The overhead plate is provided with a hollowed-out groove, and the operating handle of the pressure modules is located below the hollowed-out groove.
[0016] The above technical solution incorporates multiple power-conducting modules, such as the side-insertion module on the mounting plate and the downward-pressing small module on the pressure plate, to meet the diverse power-conducting testing needs of different small boards. This expands the functional boundaries of the fixture's testing capabilities, enabling it to handle complex testing scenarios for various small boards. The perforated slot on the overhead plate places the operating handle of the downward-pressing small module below, optimizing the operating space layout and allowing operators to easily access the device from above, improving ease of operation, ensuring a smooth and unobstructed testing process, further shortening testing time, and increasing testing efficiency.
[0017] Furthermore, a locking handle is movably provided at the end of the connecting plate opposite to the fixing member, and the bottom of the locking handle is adapted to the locking pin on the mounting plate; a second spring that fits the locking handle is horizontally fixed above the moving point of the locking handle on the fixing member.
[0018] Through the above technical solution, after the pressure plate is pressed into place, the position of the pressing module can be firmly locked, preventing the pressure plate from accidentally lifting during testing and ensuring the stability and reliability of the test. The second spring on the fixing component, which is attached to the locking handle, not only assists in the operation of the locking handle, making it easier to operate, but also absorbs the vibration and impact force in the locked state, preventing the locking handle and locking pin from loosening due to vibration, further stabilizing the position of the pressure plate and ensuring the accuracy of the test results.
[0019] Furthermore, a mis-proof device is rectangularly arranged on the outside of the pressing handle on the overhead plate. The mis-proof device includes a vertically arranged base and a limiting pin that is horizontally slidably arranged on the base. The horizontal stroke of the limiting pin is within the movement trajectory of the pressing handle, and the height of the limiting pin is higher than the highest point of the guide shaft in its initial state.
[0020] The above technical solution can prevent operators from accidentally pressing down the handle, avoiding test accidents or equipment damage caused by incorrect operation; once the handle is pressed down in the wrong direction or position, the limit pin will immediately block and remind the operator to correct it, which significantly improves the accuracy and safety of operation, ensures the smooth progress of testing, reduces time waste and potential losses caused by misoperation, and enhances the reliability of the testing process.
[0021] Furthermore, some of the aforementioned electronic devices include, but are not limited to, counters, indicator lights, leakage current switches, switching power supplies, power strips, relays, USB hubs, and LED analyzers.
[0022] Through the above technical solutions, a fully functional test support system has been constructed. A counter accurately records the number of tests, providing a basis for data analysis; indicator lights intuitively display the test status, facilitating real-time monitoring by operators; a leakage current switch ensures safe power supply during testing; a switching power supply provides stable power; power strips facilitate device connection and expansion; relays enable automatic circuit control; a USB hub meets data transmission and expansion needs; and an LED analyzer tests LED-related characteristics. These components work together to greatly enrich the testing capabilities of the fixture, meeting the diverse testing needs of different small boards, improving the comprehensiveness and accuracy of testing, and enhancing the practicality and applicability of the fixture.
[0023] Furthermore, the bottom edge of the mounting plate is movably connected to the bottom frame assembly via a hinge, and a second gas spring is connected between the inner side of the bottom frame assembly and the bottom of the mounting plate.
[0024] The above technical solution endows the upper mold assembly with a flexible opening and closing function similar to a cover. When placing or removing the small plate, the operator can easily open the upper mold assembly to obtain a spacious operating space, making operation convenient and efficient. The second gas spring provides buffering and support force for the opening and closing of the mounting plate, preventing damage from excessively rapid opening and closing, and stably supporting the mounting plate in the open state, improving the ease of use and structural stability of the fixture, optimizing the operator's user experience, and helping to improve testing efficiency.
[0025] Furthermore, the mounting plate is provided with a lifting handle at an angle, and the bottom frame assembly is provided with handling handles on both sides.
[0026] Through the above technical solution, the inclined lifting handle on the mounting plate conforms to the ergonomic design, making it convenient for operators to lift the upper mold component, and the operation is labor-saving and comfortable; the handling handles on both sides of the bottom frame component make the entire fixture easy and convenient to move, whether it is moved within the test site or transferred to other places, it can be completed efficiently.
[0027] In summary, this application includes at least one of the following beneficial technical effects:
[0028] (1) This fixture innovatively enables simultaneous testing of four small board functions, significantly shortening the testing time compared to the traditional method of testing one by one. Through a reasonable and compact structural design, such as a precise positioning system, a flexible and stable pressing module, and an optimized operating space layout, it reduces manual operation time and complexity, making the testing process smoother and more efficient;
[0029] (2) Each functional module works in concert with electronic components to make full use of the testing equipment and reduce idle time. It is especially suitable for quality inspection in large-scale production and can quickly complete the testing tasks of a large number of small boards, greatly improving the overall testing efficiency. Attached Figure Description
[0030] Figure 1 This is a schematic diagram of the structure of this application;
[0031] Figure 2 for Figure 1 A schematic diagram of the structure after removing the upper mold component;
[0032] Figure 3 for Figure 2 A schematic diagram of the structure after removing the needle carrier plate assembly;
[0033] Figure 4 This is a side view of this application;
[0034] Figure 5 This is a schematic diagram of the limit pin structure;
[0035] Figure 6 This is a schematic diagram of the locking handle.
[0036] Figure 7 This is a schematic diagram of the usage process for this application;
[0037] Figure 8 This is a schematic diagram of the structure of the small plate being tested in this application.
[0038] The following are the labeling instructions in the diagram: 1. Mounting plate; 2. Fixing component; 3. Connecting plate; 4. Pressure plate; 5. Overhead plate; 6. Guide shaft; 7. First gas spring; 8. Downward handle; 9. Carrier plate body; 10. Positioning rod; 11. First spring; 12. Side insertion module; 13. Downward small module; 14. Hollowed-out groove; 15. Operating handle; 16. Locking handle; 17. Locking pin; 18. Second spring; 19. Limit pin; 20. Counter; 21. Indicator light; 22. Leakage circuit breaker; 23. Switching power supply; 24. Power strip; 25. Relay; 26. USB hub; 27. LED analyzer; 28. Second gas spring; 29. Lifting handle; 30. Handling handle. Detailed Implementation
[0039] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0040] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0041] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0042] Example:
[0043] The following is in conjunction with the appendix Figure 1 -8 provides further details regarding this application.
[0044] This application discloses a fixture for simultaneously testing four types of small plates, including an upper mold assembly, a pin carrier plate assembly, and a bottom frame assembly.
[0045] The upper mold assembly is movably mounted above the bottom frame assembly, and the pin carrier plate assembly is installed inside the upper mold assembly to place the small plate to be tested;
[0046] The upper mold assembly includes a mounting plate 1 connected to the bottom frame assembly, and a pin carrier plate assembly located on the mounting plate 1;
[0047] Mounting plate 1 is symmetrically provided with fixing parts 2, and a pressing module is movably provided on the fixing parts 2; the pressing module includes a connecting plate 3, a pressure plate 4 and a supporting plate 5. The connecting plate 3 is movably connected to the fixing parts 2. The supporting plate 5 is fixedly provided above the connecting plate 3. Four vertical guide shafts 6 are movably provided on the supporting plate 5. The four guide shafts 6 are arranged in a rectangle and pass through the supporting plate 5. In order to ensure that the guide shafts 6 can move smoothly vertically, a linear bearing can be provided between the guide shafts 6 and the supporting plate 5; the bottom of the guide shafts 6 is fixedly connected to the pressure plate 4. A first gas spring 7 is connected between the connecting plate 3 and the mounting plate 1.
[0048] A downward handle 8 is movably installed on the top of the overhead slab 5. The moving point of the downward handle 8 is located between the front and rear adjacent guide shafts 6, and the moving trajectory of the downward handle 8 covers the guide shaft 6.
[0049] The needle carrier plate assembly includes a carrier plate body 9, which is used to place the small plate to be tested. The bottom of the pressure plate 4 is provided with a number of positioning rods 10, and the carrier plate body 9 is provided with oil seals that match the number of positioning rods 10.
[0050] Several electronic components are installed inside and outside the frame of the bottom frame assembly.
[0051] See Figure 2 and Figure 4 The surface of the carrier plate body 9 is also provided with several first springs 11. The highest point of the first spring 11 in the uncompressed state is located within the downward stroke of the pressure plate 4. When the pressure plate 4 is pressed down, the first spring 11 first contacts and compresses with the pressure plate 4 due to its elasticity, providing reliable buffer for the small plate and avoiding hard damage. The force generated after the test is completed makes it easy for the user to lift it upward.
[0052] See Figure 3It also includes multiple power-conducting modules for testing. The mounting plate 1 has a horizontally oriented side-insertion module 12, and the pressure plate 4 has a vertically downward-facing pressure module 13. The overhead plate 5 has a perforated slot 14, with the operating handle 15 of the pressure module 13 located below the perforated slot 14. The multiple power-conducting modules, such as the side-insertion module 12 on the mounting plate 1 and the pressure module 13 on the pressure plate 4, meet the diverse power-conducting testing needs of different small boards, broaden the functional boundaries of the fixture, and enable it to handle complex testing scenarios for various small boards. The perforated slot 14 on the overhead plate 5 places the operating handle 15 of the pressure module 13 below, optimizing the operating space layout and allowing operators to easily operate from above the overhead plate 5 through the perforated slot 14, improving operational convenience, ensuring a smooth and unobstructed testing process, further shortening testing time, and improving testing efficiency.
[0053] See Figure 1 , Figure 4 and Figure 6 A locking handle 16 is movably mounted on the end of the connecting plate 3 opposite to the fixing part 2. The bottom of the locking handle 16 is adapted to the locking pin 17 on the mounting plate 1. A second spring 18 is horizontally fixed above the moving point of the locking handle 16 on the fixing part 2, which fits against the locking handle 16. After the pressure plate 4 is pressed down into place, the position of the pressing module can be firmly locked to prevent the pressure plate 4 from being accidentally lifted during the test, thus ensuring the stability and reliability of the test. The second spring 18 on the fixing part 2, which fits against the locking handle 16, not only assists in the operation of the locking handle 16, making it easier to operate, but also absorbs the vibration and impact force in the locked state, preventing the locking handle 16 and the locking pin 17 from loosening due to vibration, further stabilizing the position of the pressure plate 4, and ensuring the accuracy of the test results.
[0054] See Figure 1 and Figure 5 On the raised plate 5, a rectangular anti-misoperation device is also provided on the outside of the pressing handle 8. The anti-misoperation device includes a vertically set base and a limit pin 19 that is horizontally slidably set on the base. The horizontal stroke of the limit pin 19 is within the movement trajectory of the pressing handle 8, and the height of the limit pin 19 is higher than the highest point of the guide shaft 6 in its initial state. This can prevent the operator from accidentally operating the pressing handle 8 and avoid test accidents or equipment damage caused by incorrect operation. Once the pressing handle 8 is operated in the wrong direction or position, the limit pin 19 will immediately block and remind the operator to correct it, which significantly improves the accuracy and safety of operation, ensures the smooth progress of testing, reduces the time waste and potential losses caused by misoperation, and enhances the reliability of the testing process.
[0055] See Figure 3Several electronic components, including but not limited to a counter 20, indicator lights 21, a leakage current switch 22, a switching power supply 23, a power strip 24, a relay 25, a USB hub 26, and an LED analyzer 27, constitute a fully functional test support system. The counter 20 accurately records the number of tests, providing a basis for data analysis; the indicator lights 21 intuitively display the test status, facilitating real-time monitoring by operators; the leakage current switch 22 ensures safe power supply during testing; the switching power supply 23 provides stable power; the power strip 24 facilitates device connection and expansion; the relay 25 enables automatic circuit control; the USB hub 26 meets data transmission and expansion needs; and the LED analyzer tests LED-related characteristics. These components work together to greatly enrich the testing functions of the fixture, meet the diverse testing needs of different small boards, improve the comprehensiveness and accuracy of testing, and enhance the practicality and applicability of the fixture.
[0056] See Figure 2 , Figure 3 and Figure 7 The bottom edge of the mounting plate 1 is movably connected to the bottom frame assembly via a hinge, and a second gas spring 28 connects the inner side of the bottom frame assembly to the bottom of the mounting plate 1; this gives the upper mold assembly a flexible opening and closing function similar to a cover. When placing or removing the small plate, the operator can easily open the upper mold assembly to obtain a spacious operating space, making operation convenient and efficient; the second gas spring 28 provides buffering and support for the opening and closing of the mounting plate 1, preventing damage from excessively rapid opening and closing, and stably supporting the mounting plate 1 in the open state, improving the ease of use and structural stability of the fixture, optimizing the operator's user experience, and helping to improve testing efficiency.
[0057] See Figure 1 and Figure 2 The mounting plate 1 is inclined with a lifting handle 29, and the bottom frame assembly is provided with handling handles 30 on both sides. The lifting handle 29 inclined on the mounting plate 1 is ergonomically designed to make it easy for operators to lift the upper mold assembly, making operation labor-saving and comfortable. The handling handles 30 on both sides of the bottom frame assembly make the entire fixture easy and convenient to move, whether it is moved within the test site or transferred to other places, it can be completed efficiently.
[0058] The implementation principle of the fixture for simultaneously testing four types of small plates in this application embodiment is as follows: the small plate to be tested is placed on the carrier plate body 9 of the needle carrier plate assembly. The operator adjusts the position of the limit pin 19 to avoid obstructing the pressing handle 8, and then holds the pressing handle 8. The pressing handle 8 presses down the guide shaft 6 and moves it downward. The pressure plate 4 of the pressing module moves downward under the action of the guide shaft 6. It is precisely positioned by matching the positioning hole on the carrier plate body 9 with the positioning rod 10 and applying pressure to the small plate so that the small plate makes good contact with the test point.
[0059] The first spring 11 on the surface of the carrier plate body 9 serves as a buffer and pre-tightening mechanism. The side insertion module 12 on the mounting plate 1 and the pressure plate 4, and other power-conducting modules provide the small board with the power or electrical signal required for testing. During the test, the electronic components in the bottom frame assembly work together, such as the counter 20 recording the number of tests and the indicator light 21 displaying the test status.
[0060] If the test takes a long time and to ensure the stability of the test process, the operator can operate the locking handle 16 to cooperate with the locking pin 17 on the mounting plate 1, thereby locking the position of the pressing module and preventing the pressure plate 4 from changing position due to unexpected circumstances during the long test and affecting the test results.
[0061] After the test is completed, the operator can easily open the upper mold assembly and conveniently remove the tested small plate by pulling the inclined lifting handle 29 on the mounting plate 1 and using the elastic force generated by the reset of the first spring 11 and the first gas spring 7. In addition, if it is necessary to move the fixture, the entire fixture can be moved conveniently by holding the handling handles 30 on both sides of the bottom frame assembly.
[0062] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A fixture for simultaneously testing four types of small plates, comprising an upper mold assembly, a pin carrier plate assembly, and a bottom frame assembly, characterized in that: The upper mold assembly is movably mounted above the bottom frame assembly, and the pin carrier plate assembly is installed inside the upper mold assembly for placing the small plate to be tested; The upper mold assembly includes a mounting plate (1) connected to the bottom frame assembly, and the pin carrier plate assembly is located on the mounting plate (1); The mounting plate (1) is symmetrically provided with fixing parts (2), and a pressing module is movably provided on the fixing parts (2); the pressing module includes a connecting plate (3), a pressure plate (4) and a suspended plate (5), the connecting plate (3) is movably connected to the fixing parts (2), the suspended plate (5) is fixedly provided above the connecting plate (3), four vertical guide shafts (6) are movably provided on the suspended plate (5), the four guide shafts (6) are arranged in a rectangle and pass through the suspended plate (5), the bottom of the guide shafts (6) is fixedly connected to the pressure plate (4), and a first gas spring (7) is connected between the connecting plate (3) and the mounting plate (1); The top of the overhead panel (5) is movably provided with a pressing handle (8), the moving point of the pressing handle (8) is located between the front and rear adjacent guide shafts (6), and the moving trajectory of the pressing handle (8) covers the guide shaft (6). The needle carrier plate assembly includes a carrier plate body (9), which is used to place the small plate to be tested. The bottom of the pressure plate (4) is provided with a plurality of positioning rods (10), and the carrier plate body (9) is provided with an oil seal that matches the plurality of positioning rods (10). Several electronic devices are disposed inside and outside the frame of the bottom frame assembly.
2. The fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: The surface of the carrier plate body (9) is also provided with a plurality of first springs (11), the highest point of the first springs (11) in the uncompressed state is located within the downward stroke of the pressure plate (4).
3. The fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: It also includes multiple power-on modules for testing. The mounting plate (1) is provided with a horizontal side-insertion module (12), and the pressure plate (4) is provided with a vertically downward pressing small module (13). The overhead plate (5) is provided with a hollow groove (14), and the operating handle (15) of the pressing small module (13) is located below the hollow groove (14).
4. The fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: A locking handle (16) is movably provided at the end of the connecting plate (3) opposite to the fixing member (2), and the bottom of the locking handle (16) is adapted to the locking pin (17) on the mounting plate (1); a second spring (18) that fits the locking handle (16) is horizontally fixed above the moving point of the locking handle (16) of the fixing member (2).
5. A fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: On the overhead plate (5), a rectangular anti-foolproof device is also provided on the outside of the pressing handle (8). The anti-foolproof device includes a vertically arranged base and a horizontally sliding limit pin (19) on the base. The horizontal stroke of the limit pin (19) is within the movement trajectory of the pressing handle (8), and the height of the limit pin (19) is higher than the highest point of the guide shaft (6) in its initial state.
6. The fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: The electronic devices include, but are not limited to, a counter (20), an indicator light (21), a leakage current switch (22), a switching power supply (23), a power strip (24), a relay (25), a USB hub (26), and an LED analyzer (27).
7. A fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: The bottom edge of the mounting plate (1) is movably connected to the bottom frame assembly via a hinge, and a second gas spring (28) is connected between the inner side of the bottom frame assembly and the bottom of the mounting plate (1).
8. A fixture for simultaneously testing the functions of four small plates according to claim 1, characterized in that: The mounting plate (1) is provided with a lifting handle (29) at an angle, and the bottom frame assembly is provided with handling handles (30) on both sides.