A pneumatic test fixture

Abstract

The present application relates to the technical field of test tooling and discloses a pneumatic test tooling, which comprises a shell, a base and a pneumatic test unit; the base is arranged at the lower part of the shell and is used for mounting a part to be tested; the pneumatic test unit is arranged in the shell and above the base, and is used for testing the part to be tested; the pneumatic test unit comprises a test plate adapted to the part to be tested, and a plurality of connecting portions are arranged between the part to be tested and the test plate; accordingly, the test plate is slidingly arranged so as to synchronously connect or disconnect the plurality of connecting portions. In the pneumatic test tooling, the pneumatic test unit connects the part to be tested through the test plate, and the test plate is an integral whole, so that the plurality of connecting portions between the part to be tested and the test plate can be synchronously connected or disconnected, thereby greatly improving the test efficiency.

Description

Technical Field

[0001] This invention relates to the field of testing fixture technology, and specifically to a pneumatic testing fixture. Background Technology

[0002] Test fixtures are specialized tools or devices used to assist in product testing, designed to improve testing efficiency and accuracy, and protect the device under test. Their core functions are to standardize testing processes, reduce human error, and adapt to the needs of different testing scenarios.

[0003] In the manufacturing process of circuit boards, start-up test fixtures are used to test the quality of the circuit boards. The drawback of the existing technology is that multiple connectors between the circuit board under test and multiple test circuit boards need to be precisely plugged and unplugged simultaneously during testing. The insertion and unplugging accuracy of the existing technology is poor, which in turn affects production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the insertion and removal accuracy of the prior art is poor. The purpose is to provide a pneumatic testing fixture to solve the above-mentioned problem.

[0005] This invention is achieved through the following technical solution:

[0006] A pneumatic testing fixture includes a housing, a base, and a pneumatic testing unit;

[0007] The base is located at the bottom of the housing and is used to mount the part to be tested;

[0008] The pneumatic testing unit is housed inside the casing and located above the base. The pneumatic testing unit is used to test the part under test.

[0009] The pneumatic testing unit includes a test plate adapted to the part under test. There are several connection points between the part under test and the test plate. Accordingly, the test plate is slidably set so that the several connection points are connected or disconnected simultaneously.

[0010] In one possible design, the pneumatic test unit includes a first mounting plate, a guide shaft, and a cylinder;

[0011] The first mounting plate is fixed inside the outer casing;

[0012] The bottom surface of the first mounting plate is connected to the guide shaft. Correspondingly, the first mounting plate is suspended above the base via the guide shaft. The second mounting plate is slidably mounted on the guide shaft, and the test plate is mounted on the second mounting plate.

[0013] A cylinder is connected to the top surface of the first mounting plate. Correspondingly, the output end of the cylinder passes through the first mounting plate and is connected to the second mounting plate, so that the second mounting plate and the test plate move up and down synchronously along the guide shaft.

[0014] In one possible design, the guide shafts are provided in two sets and are arranged opposite each other on both sides of the first mounting plate;

[0015] The second mounting plate is connected to the guide shaft via a bushing; a buffer plate is connected to the bottom surface of the second mounting plate via a spring, and correspondingly, a floating shaft for connecting the spring is provided on the bottom surface of the second mounting plate, and a through hole adapted to the test plate is provided on the buffer plate.

[0016] In one possible design, the housing is open on one side to allow the interior space to communicate with the outside. Accordingly, a conveying module and an adjustment module are provided on the outside of the housing. The conveying module is used to convey the part to be tested, and the adjustment module is used to transfer the part to be tested between the base and the conveying module.

[0017] In one possible design, a gap is left between the open side of the housing and the conveying module, and the positioning module is located in the gap;

[0018] The adjustment module includes a substrate and adjustment components. The substrate is disposed in the gap, and two adjustment components are provided and disposed opposite each other on both sides of the substrate. Accordingly, a transfer groove adapted to the part to be tested is formed between the two adjustment components.

[0019] In one possible design, the adjusting component includes a driver, a lifting rod, a first plate, a second plate, a third plate, and an adjusting block;

[0020] The driver is located below the substrate; the output of the driver is connected to the lifting rod via a transmission disc.

[0021] The lifting rod is vertically and slidably mounted on the base plate. The lifting rod includes a base rod and a screw rod connected sequentially from top to bottom. The upper end of the base rod passes through the top of the base plate and is connected to the first plate body through a control rod. The lower end of the base rod is located below the base plate and is connected to the screw rod. The screw rod is connected to the transmission plate so that the lifting rod can reciprocate up and down.

[0022] A rotating plate is hinged to the end of the first plate. The rotating plate has a folding station for folding and storing into the transfer slot and an extension station for rotating to be on the same line as the first plate. Accordingly, the rotating plate is constructed as a second plate and a third plate located at both ends of the first plate.

[0023] The adjustment block is slidably mounted on the first plate and used to move the part to be measured. Accordingly, both the first plate and the rotating plate are provided with adjustment grooves adapted to the adjustment block.

[0024] The rotating plate is hinged to the first plate body by a torsion spring so that the rotating plate is in the folding position; there are two control rods located on both sides of the base rod, and the two control rods are used to control the rotating plate to switch to the extension position.

[0025] In one possible design, the control lever includes a first lever body and a second lever body. One end of the first lever body is hinged to the base lever via a torsion spring, and the other end of the first lever body extends toward the first plate body and connects to the second lever body. The second lever body is slidably disposed in the first plate body.

[0026] Correspondingly, the substrate is provided with control holes adapted to the base rod, and the bottom surface of the first plate is connected to the substrate by a control rope;

[0027] Accordingly, when the base rod moves upward, the control rope is straightened, causing the first plate to move upward above the base. The end of the base rod passes through the first plate and moves upward until the first rod disengages from the control hole and rotates outward. The rotation of the first rod outward drives the second rod to insert into the rotating plate, thereby switching the rotating plate to the extension position. When the base rod moves downward, the first rod passes through the control hole and is stored inside the base rod, causing the second rod to reset and disengage from the rotating plate, thereby switching the rotating plate to the folding position. The first plate moves downward and is placed on the base plate.

[0028] Correspondingly, the first plate is provided with a first sliding groove adapted to the second rod, and the rotating plate is provided with a second sliding groove adapted to the second rod. The first sliding groove and the second sliding groove are connected to form a control groove.

[0029] In one possible design, the base includes a first base, blocks and a bracket. Two blocks are provided and are disposed opposite to each other on the first base. Both blocks are slidably disposed on the first base, and the lower part of both blocks is connected to the bracket.

[0030] The bracket has a threaded rod segment, which is connected to the transmission disc of the adjusting component. The threaded rod segment has the opposite thread direction to the lifting rod, so that the stop block and the adjusting component can be raised and lowered asynchronously.

[0031] Of the two stops, one is the near stop closer to the adjusting component, and the other is the far stop farther from the adjusting component. The height of the far stop is greater than that of the near stop, so that the upper part of the far stop is always above the first base and is used to indicate that the part to be tested is in place.

[0032] In one possible design, the stop block includes a second base, a stop bar, and a pressure plate. The second base is slidably mounted on the first base. Two stop bars are provided and are arranged opposite each other on the second base to form a centering groove for adjusting the position of the part to be measured. Accordingly, the centering groove is constructed as a conical groove with a larger opening at the top and a smaller opening at the bottom. The pressure plate is rotatably mounted on the second base and located in the centering groove. The pressure plate is used to press down and fix the part to be measured.

[0033] The second base is provided with an operating lever, which is provided with transmission teeth for connecting the stop bar. Correspondingly, the stop bar is connected to the operating lever through a transmission rack, so that the operating lever drives the stop bar to slide back and forth along the second base. Correspondingly, there are two transmission racks, which are located on both sides of the control lever, so that the two stop bars are staggered.

[0034] In one possible design, the conveying module is provided with a baffle located on the opposite side of the adjustment module. Accordingly, when the adjustment module clamps the part to be tested through two opposing adjustment blocks, the baffle is used to limit the position of the part to be tested and the adjustment blocks.

[0035] Along the direction of movement of the part to be tested, a guide ramp is provided upstream of the baffle, which is used to guide the part to be tested to move downstream along the baffle; the baffle is connected to the guide ramp and is suspended on the conveying module through a support frame;

[0036] The conveying module is equipped with a telescopic rod for separating the part to be tested and the adjustment block, and the baffle is set opposite to the telescopic rod.

[0037] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0038] The pneumatic testing unit connects to the part under test via a test board. The test board is a single unit, which allows multiple connections between the part under test and the test board to be connected or disconnected synchronously, greatly improving testing efficiency.

[0039] Meanwhile, the pneumatic testing unit provides power for the reciprocating insertion and removal of the test board, replacing the manual insertion and removal operation method in the existing technology. This not only solves the problems of time-consuming, labor-intensive, and difficult operation of manual insertion and removal, but also improves the accuracy of insertion and removal and ensures the quality of testing. Attached Figure Description

[0040] To more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0041] Figure 1 This is a schematic diagram of the structure of a pneumatic testing fixture.

[0042] Figure 2 A schematic diagram of a pneumatic testing fixture with a conveying module and a positioning module.

[0043] Figure 3 When the rotating plate is in the extension position, Figure 2 A top-view structural diagram.

[0044] Figure 4 When the rotating plate is in the folding position, Figure 2 A top-view structural diagram.

[0045] Figure 5When the rotating plate is in the extension position, Figure 2 A side view structural diagram.

[0046] Figure 6 When the rotating plate is in the folding position, Figure 2 A side view structural diagram.

[0047] Figure 7 This is a schematic diagram of the stop block.

[0048] Figure 8 This is a schematic diagram showing the connection between the operating lever and the stop bar.

[0049] Figure 9 This is a partial structural diagram of the delivery module.

[0050] The attached diagram shows the markings and corresponding component names:

[0051] 1. Housing; 2. Base; 3. Part to be tested; 4. Test plate; 5. First mounting plate; 6. Guide shaft; 7. Cylinder; 8. Second mounting plate; 9. Bushing; 10. Spring; 11. Buffer plate; 12. Control button; 13. First base; 14. Stop; 15. Bracket; 16. Proximity stop; 17. Distance stop; 18. Second base; 19. Stop bar; 20. Pressure plate; 21. Operating lever; 22. Transmission rack; 100. Conveying module; 10 1. Guide ramp; 102. Baffle; 200. Adjustment module; 300. Base plate; 400. Adjustment component; 401. Driver; 402. Lifting rod; 403. First plate; 404. Second plate; 405. Third plate; 406. Adjustment block; 407. Transmission disc; 408. Base rod; 409. Screw; 410. Control rod; 411. First rod body; 412. Second rod body; 413. Control rope; 501. Telescopic rod. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0053] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to practice the invention. In other embodiments, well-known structures, circuits, materials, or methods have not been specifically described in order to avoid obscuring the invention.

[0054] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0055] In the description of this invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0056] Example:

[0057] like Figures 1-9 As shown, a pneumatic testing fixture includes a housing 1, a base 2, and a pneumatic testing unit;

[0058] The base 2 is located at the lower part of the housing 1 and is used to mount the part to be tested 3;

[0059] The pneumatic testing unit is installed inside the housing 1 and located above the base 2. The pneumatic testing unit is used to test the part 3 under test.

[0060] The pneumatic testing unit includes a test plate 4 adapted to the part under test 3. There are several connection points between the part under test 3 and the test plate 4. Accordingly, the test plate 4 is slidably arranged so that the several connection points are connected or disconnected synchronously.

[0061] In the pneumatic testing fixture, the pneumatic testing unit is connected to the part to be tested 3 through the test plate 4. The test plate 4 is an integral unit, which enables multiple connections between the part to be tested 3 and the test plate 4 to be connected or disconnected synchronously, i.e., the synchronous insertion and removal of the test plate 4, which greatly improves the efficiency of the test.

[0062] Meanwhile, the pneumatic testing unit provides power for the reciprocating insertion and removal of the test board 4, replacing the manual insertion and removal operation method in the existing technology. This not only solves the problems of time-consuming, labor-intensive, and difficult operation of manual insertion and removal, but also improves the accuracy of insertion and removal and ensures the quality of testing.

[0063] During operation, the part to be tested (3) is mounted on the base 2 manually or using any suitable equipment; the base 2 serves as the fixture for testing the part to be tested (3). The pneumatic testing unit is activated, and the test plate 4 moves downwards and presses against the part to be tested (3). The part to be tested (3) and the test plate 4 are connected through multiple joints, and the test plate 4 performs the test on the part to be tested (3). After the test is completed, the test plate 4 moves upwards, and the part to be tested (3) is removed from the base 2, completing the test of a single part to be tested (3).

[0064] It is worth noting that when the pneumatic testing fixture is used for testing circuit boards, the part under test 3 can be any suitable circuit board, and the test board 4 is adapted to the circuit board. It is easy to understand that the part under test 3 can also be any other suitable part, and correspondingly, the test board 4 can be any suitable adapter board. Based on this, the pneumatic testing fixture has a wide range of applications and good practicality.

[0065] As is easily understood, when the pneumatic testing fixture is operated manually, multiple control buttons 12 are installed on the outer casing 1. These control buttons 12 are electrically connected to the pneumatic testing unit and are used to control the unit. When all control buttons 12 are operated simultaneously, the testing unit is activated. This prevents accidental activation by touching a single control button 12, improving the safety of the pneumatic testing fixture during use and contributing to safe production.

[0066] In one possible implementation, the pneumatic testing unit includes a first mounting plate 5, a guide shaft 6, and a cylinder 7;

[0067] The first mounting plate 5 is fixed inside the outer casing 1;

[0068] The bottom surface of the first mounting plate 5 is connected to the guide shaft 6. Correspondingly, the first mounting plate 5 is suspended above the base 2 via the guide shaft 6. The second mounting plate 8 is slidably mounted on the guide shaft 6, and the test plate 4 is mounted on the second mounting plate 8.

[0069] The top surface of the first mounting plate 5 is connected to the cylinder 7. Correspondingly, the output end of the cylinder 7 passes through the first mounting plate 5 and is connected to the second mounting plate 8, so that the second mounting plate 8 and the test plate 4 move up and down synchronously along the guide shaft 6.

[0070] Based on the above design, the first mounting plate 5 and the base 2 cooperate to form a cavity for the test plate 4 to slide back and forth. Simultaneously, other suitable auxiliary equipment can also be mounted on the first mounting plate 5, offering rich functionality. The guide shaft 6 guides the movement direction of the test plate 4, and the cylinder 7 provides power and drives the test plate 4 to slide back and forth along the guide shaft 6. Considering the size difference between the test plate 4 and the first mounting plate 5, a second mounting plate 8 is provided to achieve a transition connection.

[0071] During operation, cylinder 7 is activated, and the second mounting plate 8 and test plate 4 move down or up synchronously. Moving down causes test plate 4 to connect to the part under test 3, while moving up causes test plate 4 to detach from the part under test 3 and reset.

[0072] In one possible implementation, the guide shafts 6 are provided in two sets and are arranged opposite to each other on both sides of the first mounting plate 5. Based on the above design, on the one hand, the stability of the first mounting plate 5 is improved, and on the other hand, the size of the second mounting plate 8 is adapted to enable the second mounting plate 8 and the test plate 4 to move synchronously.

[0073] In one possible implementation, the second mounting plate 8 is connected to the guide shaft 6 via a bushing 9. Based on the above design, the bushing 9 reduces friction and adjusts the clearance, thereby improving the stability and lifespan of the guide shaft 6. It is easy to understand that any suitable existing model of bushing 9 can be selected.

[0074] In one possible implementation, a buffer plate 11 is connected to the bottom surface of the second mounting plate 8 via a spring 10. Correspondingly, a floating shaft for connecting the spring 10 is provided on the bottom surface of the second mounting plate 8, and the buffer plate 11 has a through hole adapted to the test plate 4. Based on the above design, the spring 10 and the buffer plate 11 cooperate to reduce the impact of the test plate 4 moving downward on the part 3 under test, thereby protecting the part and extending its service life.

[0075] In summary, it can be seen that the pneumatic testing fixture is applied to flip-chip packaging technology and is a patent application with patent classification number G01R31. The implementation of the pneumatic testing fixture helps to promote the transformation and implementation of digital technology, accelerate the application of related digital technologies, and promote the development of digital technology.

[0076] To reduce manual labor during operation, the pneumatic testing fixture is equipped with auxiliary equipment to automate its operation, thereby improving its automation and intelligence. Specifically, in one possible implementation, one side of the outer shell 1 is open to allow the internal space of the outer shell 1 to communicate with the outside. Correspondingly, a conveying module 100 and an adjusting module 200 are provided outside the outer shell 1. The conveying module 100 is used to convey the part to be tested 3, and the adjusting module 200 is used to transfer the part to be tested 3 between the base 2 and the conveying module 100.

[0077] Based on the above design, multiple parts to be tested 3 are placed sequentially and at intervals on the conveying module 100. The conveying module 100 transports the parts to be tested 3 to the pneumatic testing fixture, so that one of the parts to be tested 3 on the conveying module 100 is facing the pneumatic testing fixture. The positioning module 200 is used to transfer the part to be tested 3 facing the pneumatic testing fixture to the pneumatic testing fixture. After the test is completed, the positioning module 200 returns the tested part to the conveying module 100.

[0078] As is easily understood, multiple pneumatic testing fixtures are arranged along the conveying module 100, and each pneumatic testing fixture is equipped with an adjustment module 200. Based on this, simultaneous testing of multiple parts 3 to be tested can be achieved, improving work efficiency.

[0079] In one possible implementation, a gap is left between the open side of the outer casing 1 and the conveying module 100, and the adjustment module 200 is located in the gap. Based on the above design, the adjustment module 200 is located between the pneumatic testing fixture and the conveying module 100 to protect the adjustment module 200 and extend its service life.

[0080] In one possible implementation, the adjustment module 200 includes a substrate 300 and adjustment members 400. The substrate 300 is disposed in the gap, and two adjustment members 400 are provided and disposed opposite each other on both sides of the substrate 300. Accordingly, a transfer groove adapted to the part 3 under test is formed between the two adjustment members 400. Based on the above design, the substrate 300 can be constructed into any suitable shape to adapt to different usage environments. The two adjustment members 400 cooperate with each other to clamp the part 3 under test, so that the part 3 under test can move along the adjustment members 400, thereby realizing the transfer of the position of the part 3 under test.

[0081] Optionally, such as Figures 2-6 As shown, the adjusting component 400 includes a driver 401, a lifting rod 402, a first plate 403, a second plate 404, a third plate 405, and an adjusting block 406;

[0082] The driver 401 is located below the substrate 300; the output end of the driver 401 is connected to the lifting rod 402 via the transmission disk 407.

[0083] The lifting rod 402 is vertically and slidably mounted on the substrate 300. The lifting rod 402 includes a base rod 408 and a screw 409 connected sequentially from top to bottom. The upper end of the base rod 408 passes through the substrate 300 and is connected to the first plate 403 through the control rod 410. The lower end of the base rod 408 is located below the substrate 300 and is connected to the screw 409. The screw 409 is connected to the transmission disk 407 so that the lifting rod 402 can reciprocate up and down.

[0084] The first plate 403 is hinged to a rotating plate at its end. The rotating plate has a folding station for folding and storing into the transfer slot and an extension station for rotating to be on the same straight line as the first plate 403. Accordingly, the rotating plate is constructed to be divided into a second plate 404 and a third plate 405 located at both ends of the first plate 403.

[0085] The adjustment block 406 is slidably disposed on the first plate 403 and used to move the part to be tested 3. Correspondingly, the first plate 403 and the rotating plate are provided with adjustment grooves adapted to the adjustment block 406.

[0086] The rotating plate is hinged to the first plate 403 by a torsion spring so that the rotating plate is in the folding position; there are two control rods 410 located on both sides of the base rod 408, and the two control rods 410 are used to control the rotating plate to switch to the extension position.

[0087] Based on the above design, the driver 401 provides power and drives the lifting rod 402 to rise and fall. The lifting rod 402 includes a base rod 408 and a screw 409. Correspondingly, the transmission disk 407 is provided with a thread adapted to the screw 409, thereby driving the screw 409 to rotate and rise and fall. The base rod 408 is connected to the screw 409 and rises and falls with the screw 409. The difference between the two is that the screw 409 will rotate under the drive of the transmission disk 407, while the base rod 408 will not rotate.

[0088] The first plate 403 is connected to the base rod 408 and rises and falls with the lifting rod 402, thereby adjusting the height of the first plate 403. Simultaneously, the first plate 403 is hinged to rotating plates, namely the second plate 404 and the third plate 405. Specifically, when the adjusting component 400 needs to move the part to be tested 3, the first plate 403 rises, and the rotating plate switches to the extension position via the control rod 410, so that both ends of the adjusting component 400 extend to the conveying module 100 and the base 2 respectively, facilitating the movement of the part to be tested 3 via the adjusting block 406. Conversely, when the adjusting component 400 is not in operation, the rotating plate returns to the folding position, and the first plate 403 descends, reducing the space occupied by the adjusting component 400 and protecting it.

[0089] The adjusting block 406 is slidably mounted on the first plate 403 and is positioned opposite each other via two adjusting members 400. The adjusting blocks 406 on the two adjusting members 400 are aligned, and each adjusting block 406 has a groove structure adapted to the part 3 under test, allowing the side of the part 3 to be inserted into the adjusting block 406. The lifting rod 402 then lifts the part 3, causing it to detach from the conveying module 100. The two adjusting blocks 406 then move synchronously, moving the part 3 to above the base 2 of the pneumatic testing fixture, and finally placing it on the base 2, thus transferring the part 3 from the conveying module 100 to the pneumatic testing fixture. Conversely, the part 3 can also be transferred from the pneumatic testing fixture to the conveying module 100 using the same method, which will not be elaborated further here.

[0090] It is easy to understand that the portion of the adjusting block 406 located within the first plate 403 can be any suitable existing slider to achieve the reciprocating sliding of the adjusting block 406. The portion of the adjusting block 406 located outside the first plate 403 is provided with the aforementioned groove structure.

[0091] Optionally, such as Figure 3 and Figure 4As shown, a telescopic rod 501 is provided on the side of the base 2 near the adjustment module 200. When the adjustment block 406 transports the part to be tested 3 to the top of the base 2, the telescopic rod 501 rises and abuts against the part to be tested 3. The adjustment block 406 resets, but the part to be tested 3 is blocked by the telescopic rod 501, thus separating the adjustment block 406 from the part to be tested 3 and allowing the part to be tested 3 to fall onto the base 2. Similarly, a telescopic rod 501 is also provided on the side of the conveying module 100 near the adjustment module 200, which separates the adjustment block 406 from the part to be tested 3.

[0092] It is worth noting that the torsion spring and the control lever 410 work together to control the rotating plate position. The spring force of the torsion spring keeps the rotating plate in the folding position, and the control lever 410 overcomes the spring force of the torsion spring to switch the rotating plate to the extension position, so that the rotating plate can be switched to the required position to achieve the relevant function.

[0093] Furthermore, the control lever 410 is connected to the lifting lever 402, which allows the movement of the control lever 410 to be linked with the lifting of the lifting lever 402. The lifting of the lifting lever 402 is used to operate the control lever 410, reducing additional components and simplifying the structure. Specifically, optionally, as follows: Figure 5 As shown, the control lever 410 includes a first lever body 411 and a second lever body 412. One end of the first lever body 411 is hinged to the base lever 408 by a torsion spring, and the other end of the first lever body 411 extends toward the first plate 403 and connects to the second lever body 412. The second lever body 412 is slidably disposed in the first plate 403.

[0094] Correspondingly, the substrate 300 is provided with control holes adapted to the base rod 408, and the bottom surface of the first plate 403 is connected to the substrate 300 by a control rope 413.

[0095] Accordingly, when the base rod 408 moves upward, the control rope 413 is straightened, so that the first plate 403 moves upward above the base 2. The end of the base rod 408 passes through the first plate 403 and moves upward until the first rod 411 disengages from the control hole and rotates outward from the base rod 408. The first rod 411 rotates outward from the base rod 408 to drive the second rod 412 to be inserted into the rotating plate, so that the rotating plate switches to the extension position. When the base rod 408 moves downward, the first rod 411 passes through the control hole and is stored in the base rod 408, so that the second rod 412 is reset and disengaged from the rotating plate, so that the rotating plate switches to the folding position. The first plate 403 moves downward and is placed on the base plate 300.

[0096] Correspondingly, the first plate 403 is provided with a first sliding groove adapted to the second rod 412, and the rotating plate is provided with a second sliding groove adapted to the second rod 412. The first sliding groove and the second sliding groove are connected to form a control groove.

[0097] Based on the above design, when the base rod 408 rises or falls, it reciprocates through the control hole. Correspondingly, when the base rod 408 descends, and the connection between the first rod 411 and the base rod 408 enters the control hole, the first rod 411 rotates under the action of the control hole, causing it to be housed within the base rod 408. The second rod 412 follows and disengages from the rotating plate, which then rotates to the folding position under the action of the torsion spring. Conversely, when the base rod 408 rises, and the connection between the first rod 411 and the base rod 408 exits the control hole, the first rod 411 rotates outside the base rod 408 under the action of the torsion spring, thereby pushing the second rod 412 into the rotating plate, which in turn pushes the rotating plate to rotate and switch to the extension position.

[0098] A damping layer composed of elastic material is provided on the base rod 408. The first plate 403 is sleeved on the damping layer and connected to the base rod 408, so that the base rod 408 drives the first plate 403 to move upward. Figure 5 As shown, if the rising height of the first plate 403 is low, the maximum upward height of the first plate 403 is limited by the control rope 413 to prevent the first plate 403 from being too high and difficult to connect to the part 3 to be tested. Accordingly, the first plate 403 is provided with a through hole structure. When the first plate 403 rises to its maximum height, the base rod 408 passes through the through hole structure and continues to move upward, so that the first rod 411 completely disengages from the control hole, realizing the switching of the rotating plate position. At this time, the first plate 403 overcomes gravity and is suspended in the air by the damping layer.

[0099] It is easy to understand that when the rotating plate is in the extension position, the height of the first plate 403 can be further adjusted by raising and lowering the base rod 408, thereby adjusting the height of the adjusting block 406.

[0100] In one possible implementation, the base 2 includes a first base 13, a stop 14 and a bracket 15. Two stops 14 are provided and are disposed opposite to each other on the first base 13. Both stops 14 are slidably disposed on the first base 13, and the lower part of both stops 14 is connected to the bracket 15.

[0101] The bracket 15 has a threaded rod segment, which is connected to the transmission disk 407 of the adjusting member 400. The threaded rod segment has the opposite thread direction to the lifting rod 402, so that the stop block 14 and the adjusting member 400 can be raised and lowered asynchronously.

[0102] Of the two stops 14, one is the near stop 16 which is close to the adjusting member 400, and the other is the far stop 17 which is far from the adjusting member 400. The height of the far stop 17 is greater than that of the near stop 16, so that the upper part of the far stop 17 is always above the first base 13 and is used to indicate that the part to be tested 3 is in place.

[0103] Based on the above design, when the adjusting component 400 rises, it indicates that the part under test 3 needs to be transferred via the adjusting component 400. At this time, the stop block 14 descends, reducing the obstruction on the top surface of the first base 13, making the transfer of the part under test 3 more convenient. Conversely, when the adjusting component 400 descends, it indicates that the transfer of the part under test 3 is complete. At this time, the stop block 14 rises to fix the part under test 3, so that the part under test 3 is fixed on the first base 13 to facilitate subsequent testing.

[0104] Thus, the linkage between the base 2 and the adjusting component 400 is realized through the transmission plate 407, making the movements of each component more coordinated, so as to complete the automated testing of the part 3 to be tested.

[0105] As is easily understood, the upper end of the threaded rod is rotatably connected to the upper part of the bracket 15 to prevent the upper part of the bracket 15 and the stop block 14 from rotating, so that the two only move back and forth in the vertical direction.

[0106] It is worth noting that the height of the top surface of the first base 13, the height of the first plate 403 in the extended station, and the height of the conveying module 100 are designed to minimize additional height adjustment of the rotating plate when it is in the extended station, thereby avoiding additional lifting and lowering of the stop block 14.

[0107] For the stop 14, the remote stop 17 reminds the part to be tested 3 to move into place, the telescopic rod 501 moves up, the adjusting block 406 of the adjusting component 400 is reset, thereby separating the adjusting block 406 from the part to be tested 3, so that the part to be tested 3 falls onto the first base 13.

[0108] Optionally, such as Figure 7 As shown, the stop block 14 includes a second base 18, a stop bar 19, and a pressure plate 20. The second base 18 is slidably disposed on the first base 13. Two stop bars 19 are provided and are disposed opposite to each other on the second base 18 to form a centering groove for adjusting the position of the part to be tested 3. Accordingly, the centering groove is constructed as a conical groove with a larger opening at the top and a smaller opening at the bottom. The pressure plate 20 is rotatably disposed on the second base 18 and located in the centering groove. The pressure plate 20 is used to press down and fix the part to be tested 3.

[0109] Based on the above design, after the part to be tested 3 falls onto the first base 13, the stop block 14 moves upward. At this time, in order to ensure that the part to be tested 3 is in the designed position, a centering groove is formed on the stop block 14 by the stop strip 19. During the upward movement of the stop block 14, the part to be tested 3 is pushed to the designed position by the stop strip 19. After the stop block 14 has moved upward, the pressure plate 20 rotates and presses down on the part to be tested 3 to fix the part to be tested 3.

[0110] Optionally, such as Figure 7 and Figure 8As shown, the second base 18 is provided with an operating lever 21, and the operating lever 21 is provided with transmission teeth for connecting the stop bar 19. Correspondingly, the stop bar 19 is connected to the operating lever 21 through a transmission rack 22, so that the operating lever 21 drives the stop bar 19 to slide back and forth along the second base 18. Correspondingly, there are two transmission racks 22, which are respectively located on both sides of the control lever 410, so that the two stop bars 19 are staggered.

[0111] Based on the above design scheme, considering that the parts to be tested 3 have different sizes, the adjusting parts 400 can be adapted to different sizes of parts to be tested 3 by adjusting the distance between the two adjusting parts 400. The base 2 can be adapted to different sizes of parts to be tested 3 by adjusting the distance between the two stop bars 19.

[0112] Specifically, rotating the operating lever 21 causes the transmission rack 22 to slide in the second base 18, and the two stop bars 19 close or separate, thereby adjusting the size of the centering groove to fit the test parts 3 of different sizes.

[0113] In one possible implementation, such as Figure 9 As shown, the conveying module 100 is provided with a baffle 102 located on the opposite side of the adjustment module 200. Correspondingly, when the adjustment module 200 clamps the part to be tested 3 through two opposing adjustment blocks 406, the baffle 102 is used to restrict the position of the part to be tested 3 and the adjustment blocks 406.

[0114] Along the moving direction of the part to be tested 3, a guide ramp 101 connected to the baffle 102 is provided upstream of it. The guide ramp 101 is used to guide the part to be tested 3 to move downstream along the baffle 102. The baffle 102 is connected to the guide ramp 101 and is suspended on the conveying module 100 through a support frame.

[0115] The conveying module 100 is equipped with a telescopic rod 501 for separating the part to be tested 3 and the adjustment block 406, and the baffle 102 is arranged opposite to the telescopic rod 501.

[0116] Based on the above design, when the adjustment module 200 clamps the part to be tested 3 using two opposing adjustment blocks 406, the part to be tested 3 is pushed by the adjustment blocks 406 and moves along the conveying module 100. At this time, the baffle 102 limits the movement, ensuring that the part to be tested 3 remains stationary relative to the adjustment blocks 406, so that the two adjustment blocks 406 cooperate to clamp the part to be tested 3. The specific process has been explained in conjunction with the structure of the adjustment module 200 and will not be repeated here. Based on this, the situation where the adjustment blocks 406 push the part to be tested 3 to move is avoided, ensuring that subsequent tests can be carried out normally.

[0117] Furthermore, after the test part 3 is completed, it is sent back to the conveying module 100 through the adjustment module 200. At this time, the extension of the telescopic rod 501 blocks the tested part 3, so that the adjustment module 200 is separated from the part 3. The specific process has been explained in conjunction with the structure of the adjustment module 200, and will not be repeated here.

[0118] Considering that the position of the part under test 3 on the conveying module 100 is somewhat random, the guide ramp 101 is used to guide the direction of the part under test 3, ensuring that the part under test 3 moves between the baffle 102 and the adjustment module 200.

[0119] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pneumatic test fixture, characterized by, The utility model relates to a pneumatic test device, including shell (1), base (2) and pneumatic test unit, The base (2) is arranged in the lower part of the shell (1) and is used for installing the part (3) to be tested, The pneumatic test unit is arranged in the shell (1) and is located above the base (2), and the pneumatic test unit is used for testing the part (3) to be tested, The pneumatic test unit includes a test plate (4) adapted to the part (3) to be tested, and a plurality of connecting parts are provided between the part (3) to be tested and the test plate (4), and correspondingly, the test plate (4) is slidably arranged to synchronously connect or disconnect the plurality of connecting parts, One side of the shell (1) is open to make the space in the shell (1) communicate with the outside, and correspondingly, the shell (1) is externally provided with a conveying module (100) and a positioning module (200), the conveying module (100) is used for conveying the part (3) to be tested, and the positioning module (200) is used for transferring the part (3) to be tested between the base (2) and the conveying module (100), A gap is left between the open side of the shell (1) and the conveying module (100), and the positioning module (200) is located in the gap, The positioning module (200) includes a base plate (300) and a positioning member (400), the base plate (300) is arranged in the gap, the positioning member (400) is provided with two positioning members (400) and is oppositely arranged on both sides of the base plate (300), and correspondingly, the two positioning members (400) form a transfer groove adapted to the part (3) to be tested, The positioning member (400) includes a driver (401), a lifting rod (402), a first plate body (403), a second plate body (404), a third plate body (405) and a positioning block (406), The driver (401) is located below the base plate (300), and the output end of the driver (401) is connected with the lifting rod (402) through a transmission disc (407); The lifting rod (402) is vertically and slidably arranged on the base plate (300), and the lifting rod (402) includes a base rod (408) and a screw rod (409) which are sequentially connected from top to bottom, the upper end of the base rod (408) is arranged above the base plate (300) and is connected with the first plate body (403) through a control rod (410), the lower end of the base rod (408) is located below the base plate (300) and is connected with the screw rod (409), and the screw rod (409) is connected with the transmission disc (407) to make the lifting rod (402) reciprocatingly lift and fall; The end of the first plate body (403) is hingedly connected with a rotating plate, the rotating plate has a folding station which is folded and stored in the transfer groove and an extension station which is rotated to be located on the same straight line with the first plate body (403), and correspondingly, the rotating plate is divided into the second plate body (404) and the third plate body (405) which are located at both ends of the first plate body (403); The positioning block (406) is slidably arranged on the first plate body (403) and is used for moving the part (3) to be tested, and correspondingly, the first plate body (403) and the rotating plate are both provided with a positioning groove adapted to the positioning block (406). The rotating plate is hinged to the first plate body (403) by a torsion spring, so that the rotating plate is in a folding position; the control rod (410) is provided with two control rods (410) located on both sides of the base rod (408), and the two control rods (410) are used for controlling the rotating plate to switch to an unfolding position.

2. The pneumatic test fixture of claim 1, wherein, The pneumatic test unit comprises a first mounting plate (5), a guide shaft (6) and a pneumatic cylinder (7); The first mounting plate (5) is fixed in the shell (1); The bottom surface of the first mounting plate (5) is connected with the guide shaft (6), and correspondingly, the first mounting plate (5) is suspended above the base (2) through the guide shaft (6), the second mounting plate (8) is slidably arranged on the guide shaft (6), and the test plate (4) is arranged on the second mounting plate (8); The top surface of the first mounting plate (5) is connected with the pneumatic cylinder (7), and correspondingly, the output end of the pneumatic cylinder (7) penetrates through the first mounting plate (5) and is connected with the second mounting plate (8), so that the second mounting plate (8) and the test plate (4) are synchronously lifted along the guide shaft (6).

3. The pneumatic test fixture of claim 2, wherein, The guide shaft (6) is provided with two groups and is oppositely arranged on both sides of the first mounting plate (5); The second mounting plate (8) is connected with the guide shaft (6) through the shaft sleeve (9); the bottom surface of the second mounting plate (8) is connected with the buffer plate (11) through the spring (10), and correspondingly, the bottom surface of the second mounting plate (8) is provided with a floating shaft for connecting the spring (10), and the buffer plate (11) is provided with a through hole matched with the test plate (4).

4. The pneumatic test fixture of claim 1, wherein, The control rod (410) comprises a first rod body (411) and a second rod body (412), one end of the first rod body (411) is hinged to the base rod (408) through a torsion spring, the other end of the first rod body (411) extends to the first plate body (403) and is connected with the second rod body (412), and the second rod body (412) is slidably arranged in the first plate body (403); Correspondingly, the base plate (300) is provided with a control hole matched with the base rod (408), and the bottom surface of the first plate body (403) is connected to the base plate (300) through the control rope (413); Correspondingly, when the base rod (408) moves upward, the control rope (413) is straightened, so that the first plate body (403) moves upward above the base (2), the end of the base rod (408) penetrates through the first plate body (403) and moves upward, until the first rod body (411) is separated from the control hole and rotates outwardly from the base rod (408), the first rod body (411) rotates outwardly from the base rod (408) to drive the second rod body (412) to be inserted into the rotating plate, so that the rotating plate switches to the unfolding position; when the base rod (408) moves downward, the first rod body (411) penetrates into the control hole and is accommodated in the base rod (408), so that the second rod body (412) is reset and separated from the rotating plate, so that the rotating plate switches to the folding position, and the first plate body (403) moves downward and is placed on the base plate (300); Correspondingly, the first plate body (403) is provided with a first sliding groove matched with the second rod body (412), and the rotating plate is provided with a second sliding groove matched with the second rod body (412), the first sliding groove and the second sliding groove are communicated and form a control groove.

5. The pneumatic test fixture of claim 4, wherein, The base (2) comprises a first base (13), a stop block (14) and a support (15), the stop block (14) is provided with two stop blocks (14) which are oppositely arranged on the first base (13), the two stop blocks (14) are slidably arranged on the first base (13), and the lower portions of the two stop blocks (14) are connected to the support (15); The support (15) has a threaded rod segment, the support (15) is connected to the transmission disc (407) of the position adjusting member (400) through the threaded rod segment, and the threaded rod segment is opposite in screw rotation direction to the threaded rod segment of the lifting rod (402), so that the stop block (14) and the position adjusting member (400) are asynchronously lifted; Among the two stop blocks (14), one is a near stop (16) close to the position adjusting member (400), and the other is a far stop (17) away from the position adjusting member (400), and the height of the far stop (17) is greater than that of the near stop (16), so that the upper portion of the far stop (17) is always located above the first base (13) and is used for prompting the to-be-measured part (3) to be in place.

6. The pneumatic test fixture of claim 5, wherein, The stop block (14) comprises a second base (18), a stop bar (19) and a pressing plate (20), the second base (18) is slidably arranged on the first base (13), the stop bar (19) is provided with two stop bars (19) which are oppositely arranged on the second base (18) to form a centering groove for adjusting the position of the to-be-measured part (3), and correspondingly, the centering groove is configured as a tapered groove with a large opening at the top and a small opening at the bottom; the pressing plate (20) is rotatably arranged on the second base (18) and located in the centering groove, and the pressing plate (20) is used for pressing and fixing the to-be-measured part (3); The second base (18) is provided with an operating rod (21), the operating rod (21) is provided with transmission teeth for connecting the stop bar (19), correspondingly, the stop bar (19) is connected to the operating rod (21) through a transmission rack (22), so that the operating rod (21) drives the stop bar (19) to reciprocate along the second base (18); correspondingly, the transmission rack (22) is provided with two transmission racks (22) which are located on both sides of the control rod (410), so that the two stop bars (19) are staggered.

7. The pneumatic test fixture of claim 6, wherein, The conveying module (100) is provided with a baffle (102) located on the opposite side of the positioning module (200), and correspondingly, when the positioning module (200) clamps the to-be-measured part (3) through the two opposite positioning blocks (406), the baffle (102) is used for limiting the positions of the to-be-measured part (3) and the positioning blocks (406); In the moving direction of the to-be-measured part (3), the upstream of the baffle (102) is provided with a guide inclined plate (101) connected thereto, the guide inclined plate (101) is used for guiding the to-be-measured part (3) to move downstream along the baffle (102); the baffle (102) is connected to the guide inclined plate (101) and is suspended on the conveying module (100) through a support frame; The conveying module (100) is provided with a telescopic rod (501) for separating the to-be-measured part (3) and the positioning block (406), and the baffle (102) is oppositely arranged with the telescopic rod (501).

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