Pneumatic test tool

Abstract

The invention relates to the technical field of testing tools and discloses a pneumatic testing tool. The pneumatic testing tool comprises a shell, a base and a pneumatic testing unit. The base is arranged at the lower part of the shell and is used for mounting a to-be-tested part; the pneumatic test unit is arranged in the shell and located above the base, and the pneumatic test unit is used for testing a to-be-tested part; the pneumatic testing unit comprises a testing plate matched with the to-be-tested part, a plurality of connecting positions are arranged between the to-be-tested part and the testing plate, and correspondingly, the testing plate is arranged in a sliding mode so that the connecting positions can be synchronously connected or disconnected. In the pneumatic test tool, the pneumatic test unit is connected with the to-be-tested part through the test plate, and the test plate is an integral body, so that a plurality of joints between the to-be-tested part and the test plate can be synchronously connected or disconnected, and the test efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of testing tooling, and in particular to a pneumatic testing tooling. Background Art

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

[0003] During the manufacturing process of circuit boards, a startup test fixture is used to test the quality of the circuit boards. The existing technology has a drawback: during testing, multiple connectors between the circuit board under test and multiple test circuit boards must be precisely plugged and unplugged simultaneously. This poor plugging and unplugging accuracy of the existing technology affects production efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the prior art has poor plugging and unplugging accuracy, and the purpose is to provide a pneumatic test tool to solve the above problem.

[0005] The present invention is achieved through the following technical solutions: A pneumatic test fixture comprises a shell, a base and a pneumatic test unit; The base is arranged at the lower part of the housing and is used for mounting the part to be tested; The pneumatic test unit is arranged in the housing and located above the base, and the pneumatic test unit is used to test the part to be tested; The pneumatic test unit includes a test plate adapted to the part to be tested, and there are several connections between the part to be tested and the test plate. Accordingly, the test plate is slidably arranged to make the several connections connected or disconnected synchronously.

[0006] In one possible design, the pneumatic test unit includes a first mounting plate, a guide shaft, and a cylinder; The first mounting plate is fixed in the housing; The bottom surface of the first mounting plate is connected to the guide shaft. Accordingly, the first mounting plate is suspended above the base through the guide shaft. A second mounting plate is slidably provided on the guide shaft, and the test plate is provided on the second mounting plate. The top surface of the first mounting plate is connected to the cylinder. 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 can be synchronously lifted and lowered along the guide shaft.

[0007] In one possible design, two groups of guide shafts are provided and are arranged oppositely on both sides of the first mounting plate; The second mounting plate is connected to the guide shaft through a sleeve; a buffer plate is connected to the bottom surface of the second mounting plate through a spring. Accordingly, 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.

[0008] In one possible design, one side of the shell is open so that the space inside the shell is connected to the outside world. Accordingly, a conveying module and a positioning module are provided outside the shell. The conveying module is used to convey the parts to be tested, and the positioning module is used to transfer the parts to be tested between the base and the conveying module.

[0009] 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; The positioning module includes a base plate and a positioning member. The base plate is arranged in the gap. Two positioning members are provided and arranged oppositely on both sides of the base plate. Accordingly, a transfer groove adapted to the part to be tested is formed between the two positioning members.

[0010] In one possible design, the positioning member includes a driver, a lifting rod, a first plate, a second plate, a third plate, and a positioning block; The driver is located below the base plate; the output end of the driver is connected to the lifting rod through the transmission disc; The lifting rod is vertically and slidably arranged on the base plate; the lifting rod includes a base rod and a screw rod connected in sequence from top to bottom, the upper end of the base rod is passed through the top of the base plate and is connected to the first plate body through the control rod, the lower end of the base rod is located below the base plate and connected to the screw rod, and the screw rod is connected to the transmission plate to make the lifting rod reciprocate. The end of the first plate body is hingedly connected to a rotating plate, which has a folding position for folding and storing in the transfer groove and an extension position for rotating to be aligned with the first plate body; accordingly, the rotating plate is structured to be divided into a second plate body and a third plate body located at both ends of the first plate body; The adjustment block is slidably arranged on the first plate body and is used to move the part to be tested. Accordingly, the first plate body and the rotating plate are both provided with adjustment grooves adapted to the adjustment block; The rotating plate is hinged to the first plate body through a torsion spring so that the rotating plate is in a folding position; two control rods are provided and located on both sides of the base rod, and the two control rods are respectively used to control the rotating plate to switch to the extension position.

[0011] In one possible design, the control rod includes a first rod body and a second rod body, one end of the first rod body is hinged to the base rod through a torsion spring, the other end of the first rod body extends toward the first plate body and is connected to the second rod body, and the second rod body is slidably disposed in the first plate body; Correspondingly, a control hole adapted to the base rod is provided on the base plate, and the bottom surface of the first plate body is connected to the base plate via a control rope; Correspondingly, when the base rod moves upward, the control rope is straightened to move the first plate body upward to above the base, and the end of the base rod passes through the first plate body and moves upward until the first rod body disengages from the control hole and rotates outward from the base rod, and the first rod body rotates outward from the base rod to drive the second rod body to be inserted into the rotating plate, so that the rotating plate switches to the extension position; when the base rod moves downward, the first rod body passes through the control hole and is received in the base rod, so that the second rod body is reset and disengaged from the rotating plate, so that the rotating plate switches to the folding position, and the first plate body moves downward and is placed on the base plate; Correspondingly, a first sliding groove adapted to the second rod body is provided on the first plate body, a second sliding groove adapted to the second rod body is provided on the rotating plate, and the first sliding groove is connected to the second sliding groove to form a control groove.

[0012] In one possible design, the base includes a first base, a stopper, and a bracket. Two stoppers are provided and are arranged opposite to each other on the first base. Both stoppers are slidably arranged on the first base, and the lower parts of both stoppers are connected to the bracket. The bracket has a threaded rod section, which is connected to the transmission plate of the position adjusting member through the threaded rod section, and the threaded rod section and the lifting rod have opposite thread rotation directions, so that the stopper and the position adjusting member can be raised and lowered asynchronously; Of the two stops, one is a near stop close to the positioning member, and the other is a far stop away from the positioning member, and the far stop is higher than the near stop so that the upper part of the far stop is always located above the first base and is used to prompt that the part to be tested is in place.

[0013] In one possible design, the stopper includes a second base, a stop bar, and a pressure plate. The second base is slidably disposed on the first base. Two stop bars are provided and are arranged opposite to 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 disposed 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. An operating rod is provided on the second base, and a transmission tooth for connecting the baffle is provided on the operating rod. Accordingly, the baffle is connected to the operating rod through a transmission rack so that the operating rod drives the baffle to slide back and forth along the second base; accordingly, two transmission racks are provided and are respectively located on both sides of the control rod so that the two baffles are staggered.

[0014] In one possible design, the conveying module is provided with a baffle located on the opposite side of the positioning module. Accordingly, when the positioning module clamps the part to be tested through two opposing positioning blocks, the baffle is used to limit the position of the part to be tested and the positioning blocks; Along the moving direction of the part to be tested, a guide inclined plate connected to the upstream of the baffle is provided, and the guide inclined plate is used to guide the part to be tested to move downstream along the baffle; the baffle is connected to the guide inclined plate and is suspended on the conveying module through a support frame; A telescopic rod for separating the parts to be tested and the adjustment block is provided on the conveying module, and the baffle is arranged opposite to the telescopic rod.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects: The pneumatic test unit is connected to the part to be tested through a test board. The test board is an integral whole, so that multiple connections between the part to be tested and the test board can be connected or disconnected synchronously, greatly improving the efficiency of the test.

[0016] At the same time, the pneumatic test unit provides power for the reciprocating plugging and unplugging of the test board, replacing the manual plugging and unplugging operation method in the existing technology. It not only solves the problem of time-consuming, labor-intensive and difficult operation of manual plugging and unplugging, but also improves the accuracy of plugging and unplugging, ensuring the quality of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings: Figure 1 This is a structural diagram of a pneumatic test tool.

[0018] Figure 2 The figure is a schematic diagram of the structure of a pneumatic test fixture when a conveying module and a positioning module are provided.

[0019] Figure 3 When the rotating plate is in the extended position, Figure 2 Schematic diagram of the top view structure.

[0020] Figure 4 When the rotating plate is in the folding position, Figure 2 Schematic diagram of the top view structure.

[0021] Figure 5 When the rotating plate is in the extended position, Figure 2 Schematic diagram of the side structure.

[0022] Figure 6 When the rotating plate is in the folding position, Figure 2 Schematic diagram of the side structure.

[0023] Figure 7 Schematic diagram of the structure of the stopper.

[0024] Figure 8 Schematic diagram of the connection between the operating lever and the stop bar.

[0025] Figure 9A schematic diagram of the local structure of the conveying module.

[0026] Markings and corresponding parts names in the accompanying drawings: 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. Stopper; 15. Bracket; 16. Near stop; 17. Far stop; 18. Second base; 19. Stop bar; 20. Press plate; 21. Operating lever; 22. Transmission rack; 100. Conveyor module; 10 1. Guide inclined plate; 102. Baffle; 200. Position adjustment module; 300. Base plate; 400. Position adjustment member; 401. Driver; 402. Lifting rod; 403. First plate; 404. Second plate; 405. Third plate; 406. Position adjustment block; 407. Transmission plate; 408. Base rod; 409. Screw; 410. Control rod; 411. First rod; 412. Second rod; 413. Control rope; 501. Telescopic rod. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0028] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0029] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present invention. Therefore, appearances of the phrases "one embodiment," "an embodiment," "an example," or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combinations and / or subcombinations. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0030] In the description of the present invention, the terms "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0031] Example: like Figures 1-9 As shown, a pneumatic test fixture includes a housing 1, a base 2 and a pneumatic test unit; The base 2 is provided at the lower portion of the housing 1 and is used for mounting the part to be tested 3; The pneumatic test unit is disposed in the housing 1 and located above the base 2 , and is used to test the part 3 to be tested; The pneumatic test unit includes a test plate 4 adapted to the part to be tested 3. There are several connections between the part to be tested 3 and the test plate 4. Accordingly, the test plate 4 is slidably arranged to connect or disconnect the several connections synchronously.

[0032] In the pneumatic testing tooling, the pneumatic testing unit is connected to the part to be tested 3 through the test board 4. The test board 4 is a whole, so that multiple connections between the part to be tested 3 and the test board 4 can be connected or disconnected synchronously, that is, the test board 4 can be plugged and unplugged synchronously, which greatly improves the efficiency of the test.

[0033] At the same time, the pneumatic test unit provides power for the reciprocating plugging and unplugging of the test board 4, replacing the manual plugging and unplugging operation method in the existing technology. It not only solves the problem of time-consuming, labor-intensive and difficult operation of manual plugging and unplugging, but also improves the accuracy of plugging and unplugging, ensuring the quality of the test.

[0034] During operation, the part under test 3 is mounted on the base 2 manually or by any other suitable means. The base 2 then serves as a fixture for testing the part under test 3. The pneumatic test unit is activated, and the test plate 4 moves downward and presses against the part under test 3. The part under test 3 and the test plate 4 are connected via multiple connections, allowing the part under test 3 to be tested via the test plate 4. After the test is complete, the test plate 4 moves upward, and the part under test 3 is removed from the base 2, completing the test of the single part under test 3.

[0035] It is worth noting that when the pneumatic test fixture is used to test circuit boards, the component under test 3 can be any suitable circuit board under test, and the test board 4 is adapted to fit the circuit board under test. It will be readily understood that the component under test 3 can also be any other suitable component, and the test board 4 can correspondingly be any suitable adaptor. Therefore, the pneumatic test fixture has a wide range of applications and excellent practicality.

[0036] As will be readily understood, when manually operating the pneumatic test fixture, multiple control buttons 12 are mounted on housing 1. These control buttons 12 are electrically connected to and used to control the pneumatic test unit. Synchronously operating all control buttons 12 activates the test unit. This prevents accidental activation by a single control button 12, improves the safety of the pneumatic test fixture during use, and contributes to safe production.

[0037] In one possible implementation, the pneumatic test unit includes a first mounting plate 5 , a guide shaft 6 , and a cylinder 7 ; The first mounting plate 5 is fixed in the housing 1; The bottom surface of the first mounting plate 5 is connected to the guide shaft 6. Accordingly, the first mounting plate 5 is suspended above the base 2 via the guide shaft 6. A second mounting plate 8 is slidably provided on the guide shaft 6. The test plate 4 is provided on the second mounting plate 8. The top surface of the first mounting plate 5 is connected to the cylinder 7 . Accordingly, 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 rise and fall synchronously along the guide shaft 6 .

[0038] Based on the above design, the first mounting plate 5 and base 2 cooperate to form a cavity for the reciprocating sliding of the test plate 4. The first mounting plate 5 can also be mounted with any other suitable auxiliary equipment, providing a wide range of functions. A guide shaft 6 guides the movement of the test plate 4, while a cylinder 7 provides power and drives the test plate 4 along the guide shaft 6. To account for the size difference between the test plate 4 and the first mounting plate 5, a second mounting plate 8 is provided to provide a transitional connection.

[0039] During operation, the cylinder 7 is started, and the second mounting plate 8 and the test plate 4 move downward or upward synchronously. The downward movement causes the test plate 4 to connect to the part to be tested 3, and conversely, the upward movement causes the test plate 4 to separate from the part to be tested 3 and reset.

[0040] In one possible implementation, two sets of guide shafts 6 are provided and are disposed opposite each other on either side of the first mounting plate 5. Based on the above design, the stability of the installation of the first mounting plate 5 is improved on the one hand, and the size of the second mounting plate 8 is adapted on the other hand, so that the second mounting plate 8 and the test plate 4 move synchronously.

[0041] In one possible implementation, the second mounting plate 8 is connected to the guide shaft 6 via a sleeve 9. Based on the above design, the sleeve 9 reduces friction and adjusts clearance, thereby improving the stability and life of the guide shaft 6. It is easy to understand that the sleeve 9 can be any suitable existing model.

[0042] In one possible implementation, a buffer plate 11 is connected to the bottom surface of second mounting plate 8 via a spring 10. Accordingly, a floating shaft for connecting to spring 10 is provided on the bottom surface of second mounting plate 8, and a through-hole adapted for use with test plate 4 is provided on buffer plate 11. Based on this design, the spring 10 and buffer plate 11 cooperate to mitigate the impact of the downward movement of test plate 4 on part 3 under test, thereby protecting the component and extending its service life.

[0043] To sum up, it can be seen that the pneumatic test tooling is a patent application for flip-chip packaging technology with a patent classification number of G01R31. The implementation of the pneumatic test tooling helps promote the transformation and implementation of digital technology, accelerate the application of related digital technologies, and promote the development of digital technology.

[0044] To reduce manual labor during operation, the pneumatic test fixture is equipped with supporting equipment to achieve automatic operation, thereby improving the automation and intelligence of the pneumatic test fixture. Specifically, in one possible implementation, one side of the housing 1 is open to connect the space inside the housing 1 to the outside world. Accordingly, a conveying module 100 and a positioning module 200 are provided outside the housing 1. The conveying module 100 is used to convey the part 3 to be tested, and the positioning module 200 is used to transfer the part 3 to be tested between the base 2 and the conveying module 100.

[0045] Based on the above design, multiple parts 3 to be tested are sequentially and spaced apart on the conveyor module 100. The conveyor module 100 transports the parts 3 to the pneumatic test fixture, such that one of the parts 3 on the conveyor module 100 faces the pneumatic test fixture. The positioning module 200 is used to transfer the part 3 facing the pneumatic test fixture to the pneumatic test fixture. After testing is completed, the positioning module 200 returns the tested part to the conveyor module 100.

[0046] It is easy to understand that a plurality of the pneumatic test fixtures are arranged along the conveying module 100, and a positioning module 200 is arranged at each pneumatic test fixture. Based on this, the synchronous testing of a plurality of parts 3 to be tested is achieved, thereby improving work efficiency.

[0047] In one possible implementation, a gap is left between the open side of the housing 1 and the conveying module 100, and the positioning module 200 is located in the gap. Based on the above design, the positioning module 200 is located between the pneumatic test fixture and the conveying module 100 to protect the positioning module 200 and extend its service life.

[0048] In one possible implementation, the positioning module 200 includes a base plate 300 and a positioning member 400. The base plate 300 is positioned in the gap, and two positioning members 400 are provided, positioned opposite each other on either side of the base plate 300. Accordingly, a transfer slot adapted to the part 3 under test is formed between the two positioning members 400. Based on the above design, the base plate 300 can be constructed in any suitable shape to adapt to different usage environments. The two positioning members 400 cooperate with each other to clamp the part 3 under test, allowing it to move along the positioning members 400, thereby shifting the position of the part 3 under test.

[0049] Alternatively, as Figure 2-Figure 6 As shown, the positioning member 400 includes a driver 401, a lifting rod 402, a first plate 403, a second plate 404, a third plate 405 and a positioning block 406; The driver 401 is located below the base plate 300; the output end of the driver 401 is connected to the lifting rod 402 through the transmission plate 407; The lifting rod 402 is vertically and slidably disposed on the base plate 300. The lifting rod 402 includes a base rod 408 and a screw rod 409 connected in sequence from top to bottom. The upper end of the base rod 408 passes through the top of the base plate 300 and is connected to the first plate body 403 via a control rod 410. The lower end of the base rod 408 is located below the base plate 300 and is connected to the screw rod 409. The screw rod 409 is connected to the transmission plate 407 to enable the lifting rod 402 to reciprocate. A rotating plate is hingedly connected to the end of the first plate 403. The rotating plate has a folding position for folding and storing in the transfer groove, and an extension position for rotating to be aligned with the first plate 403. Accordingly, the rotating plate is structured to be divided into a second plate 404 and a third plate 405 located at both ends of the first plate 403. The adjustment block 406 is slidably disposed on the first plate 403 and is used to move the part 3 to be tested. Accordingly, the first plate 403 and the rotating plate are both provided with adjustment slots adapted to fit the adjustment block 406. The rotating plate is hinged to the first plate body 403 via a torsion spring so that the rotating plate is in the folding position; two control rods 410 are provided and located on both sides of the base rod 408, and the two control rods 410 are respectively used to control the rotating plate to switch to the extension position.

[0050] Based on the above design scheme, the driver 401 provides power and drives the lifting rod 402 to rise and fall, wherein the lifting rod 402 includes a base rod 408 and a screw rod 409. Accordingly, the transmission disk 407 is provided with a thread adapted to the screw rod 409, thereby driving the screw rod 409 to rotate and rise and fall; the base rod 408 is connected to the screw rod 409 and rises and falls with the screw rod 409. The difference between the two is that the screw rod 409 will rotate under the drive of the transmission disk 407, while the base rod 408 will not rotate.

[0051] The first plate 403 is connected to the base rod 408 and rises and falls with the rise and fall of the lifting rod 402, thereby adjusting the height of the first plate 403. Furthermore, the first plate 403 is hingedly connected to a pivoting plate, namely a second plate 404 and a third plate 405. Specifically, when the positioning member 400 needs to transfer the part 3 to be tested, the first plate 403 rises, and the pivoting plate is switched to the extended position via the control lever 410, allowing the ends of the positioning member 400 to extend to the conveyor module 100 and the base 2, respectively, to facilitate the movement of the part 3 to be tested via the positioning block 406. Conversely, when the positioning member 400 is no longer needed, the pivoting plate returns to the collapsed position, and the first plate 403 descends, reducing the space occupied by the positioning member 400 and protecting it.

[0052] The positioning block 406 is slidably mounted on the first plate 403 and is positioned relative to the two positioning members 400. The positioning blocks 406 on the two positioning members 400 are positioned relative to each other. The positioning block 406 is provided with a slot structure adapted to the part 3 to be tested, allowing the side of the part 3 to be tested to be inserted into the positioning block 406. The lifting rod 402 is then used to lift the part 3 to be tested, allowing the part 3 to be tested to be separated from the conveying module 100. The two positioning blocks 406 then move synchronously to move the part 3 to the top of the base 2 of the pneumatic test fixture, and then place the part 3 to be tested on the base 2, thereby transferring the part 3 to be tested from the conveying module 100 to the pneumatic test fixture. Conversely, the part 3 to be tested can also be transferred from the pneumatic test fixture to the conveying module 100 according to the above operation, which will not be described in detail here.

[0053] It is easy to understand that the portion of the adjustment block 406 located inside the first plate 403 can be any suitable existing slider to achieve reciprocating sliding of the adjustment block 406. The portion of the adjustment block 406 located outside the first plate 403 is provided with the above-mentioned slot structure.

[0054] Alternatively, as Figure 3 and Figure 4 As shown, a telescopic rod 501 is provided on the side of the base 2 adjacent to the positioning module 200. When the positioning block 406 conveys the part 3 to the top of the base 2, the telescopic rod 501 rises and contacts the part 3. The positioning block 406 returns to its original position, but the part 3 is blocked by the telescopic rod 501, separating the positioning block 406 from the part 3 and allowing the part 3 to fall onto the base 2. Similarly, a telescopic rod 501 is also provided on the side of the conveying module 100 adjacent to the positioning module 200, and the telescopic rod 501 is used to separate the positioning block 406 from the part 3.

[0055] It is worth noting that the control of the rotating plate position is achieved through the cooperation between the torsion spring and the control rod 410, that is, the elastic force of the torsion spring makes the rotating plate in the folding position, and the control rod 410 overcomes the elastic force of the torsion spring to switch the rotating plate to the extension position, so that the rotating plate switches to the required position to realize the relevant functions.

[0056] Furthermore, the control rod 410 is connected to the lifting rod 402, and the movement of the control rod 410 can be linked with the lifting of the lifting rod 402, and the lifting of the lifting rod 402 can be used to operate the control rod 410, thereby reducing additional components and simplifying the structure. Specifically, optionally, as Figure 5 As shown, the control rod 410 includes 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 toward the first plate body 403 and connects to the second rod body 412. The second rod body 412 is slidably disposed in the first plate body 403. Accordingly, the base plate 300 is provided with a control hole adapted to the base rod 408 , and the bottom surface of the first plate 403 is connected to the base plate 300 via a control rope 413 ; Correspondingly, when the base rod 408 moves upward, the control rope 413 is straightened to move the first plate 403 upward to above the base 2, and 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 received 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, and the first plate 403 moves downward and is placed on the base plate 300; Correspondingly, a first sliding groove adapted to the second rod 412 is provided on the first plate 403, and a second sliding groove adapted to the second rod 412 is provided on the rotating plate. The first sliding groove is connected to the second sliding groove and forms a control groove.

[0057] Based on the above design, when the base rod 408 is raised or lowered, the base rod 408 will reciprocate through the control hole. Correspondingly, when the base rod 408 is lowered and the connection between the first rod 411 and the base rod 408 passes through the control hole, the first rod 411 will rotate under the action of the control hole, so that the first rod 411 is stored in the base rod 408, and the second rod 412 follows and disengages from the rotating plate, and the rotating plate will rotate to the folding position under the action of the torsion spring. Conversely, when the base rod 408 is raised and the connection between the first rod 411 and the base rod 408 passes through the control hole, the first rod 411 will rotate outside the base rod 408 under the action of the torsion spring, thereby pushing the second rod 412 to be inserted into the rotating plate, thereby pushing the rotating plate to rotate and switch to the extension position.

[0058] A damping layer made of elastic material is provided on the base rod 408, and 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 first plate 403 is raised to a low height, a control rope 413 limits the maximum height at which the first plate 403 can rise, preventing it from becoming too high and making it difficult to connect to the part 3 under test. Accordingly, a through-hole structure is provided on the first plate 403. When the first plate 403 reaches its maximum height, the base rod 408 passes through the through-hole structure and continues to move upward, allowing the first rod 411 to completely exit the control hole, thus switching the rotating plate position. At this point, the first plate 403 overcomes gravity through the damping layer and remains suspended in the air.

[0059] It is easy to understand that when the rotating plate is in the extended position, the height of the first plate body 403 can be further adjusted by raising and lowering the base rod 408 , thereby adjusting the height of the adjustment block 406 .

[0060] In one possible implementation, the base 2 includes a first base 13, a stopper 14, and a bracket 15. Two stoppers 14 are provided and are arranged opposite to each other on the first base 13. Both stoppers 14 are slidably arranged on the first base 13, and the bottoms of both stoppers 14 are connected to the bracket 15. The bracket 15 has a threaded rod section, which is connected to the transmission plate 407 of the position adjusting member 400 through the threaded rod section. The threaded rod section and the lifting rod 402 have opposite thread rotation directions, so that the stopper 14 and the position adjusting member 400 can be raised and lowered asynchronously. Of the two stops 14, one is a near stop 16 close to the positioning member 400, and the other is a far stop 17 far away from the positioning member 400, and 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 located above the first base 13 and is used to prompt that the part 3 to be tested is in place.

[0061] Based on the above design, when the positioning member 400 rises, it indicates that the part 3 to be tested needs to be transferred by the positioning member 400. At this time, the stopper 14 descends, reducing the obstruction of the top surface of the first base 13 and facilitating the transfer of the part 3 to be tested. Conversely, when the positioning member 400 descends, it indicates that the transfer of the part 3 to be tested is complete. At this time, the stopper 14 ascends to secure the part 3 to be tested, so that the part 3 to be tested is fixed to the first base 13, facilitating subsequent testing operations.

[0062] Thus, the base 2 and the positioning member 400 are linked together by the transmission disk 407 , so that the movements of the various components are more coordinated, thereby completing the automated test of the part 3 to be tested.

[0063] It is easy to understand that the upper end of the threaded rod segment is rotatably connected to the upper portion of the bracket 15 to prevent the upper portion of the bracket 15 and the stopper 14 from rotating, so that the two can only reciprocate and rise and fall in the vertical direction.

[0064] It is worth noting that the height of the top surface of the first base 13, the height of the first plate body 403 at the extension position and the height of the conveying module 100 are designed so that when the rotating plate is in the extension position, the additional height adjustment of the rotating plate is minimized, thereby avoiding additional lifting of the block 14.

[0065] The stopper 14 reminds the part 3 to move into position through the remote stopper 17 , the telescopic rod 501 moves upward, and the adjusting block 406 of the adjusting member 400 is reset, thereby separating the adjusting block 406 and the part 3 to be tested, so that the part 3 to be tested falls onto the first base 13 .

[0066] Alternatively, as Figure 7 As shown, the stopper 14 includes a second base 18, a stop bar 19 and a pressure plate 20. The second base 18 is slidably arranged on the first base 13. Two stop bars 19 are provided and are relatively arranged on the second base 18 to form a centering groove for adjusting the position of the part to be measured 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 arranged on the second base 18 and is located in the centering groove. The pressure plate 20 is used to press down and fix the part to be measured 3.

[0067] Based on the above design, after the part 3 under test falls onto the first base 13, the stopper 14 moves upward. To ensure that the part 3 under test is in the designed position, a centering groove is formed on the stopper 14 by a stopper bar 19. During the upward movement of the stopper 14, the part 3 under test is pushed to the designed position by the stopper bar 19. After the stopper 14 has moved upward, the pressure plate 20 rotates and presses down on the part 3 under test, securing the part 3 under test.

[0068] Alternatively, as Figure 7 and Figure 8 As shown, an operating rod 21 is provided on the second base 18, and a transmission tooth for connecting the baffle 19 is provided on the operating rod 21. Accordingly, the baffle 19 is connected to the operating rod 21 through a transmission rack 22, so that the operating rod 21 drives the baffle 19 to slide back and forth along the second base 18; accordingly, two transmission racks 22 are provided and are respectively located on both sides of the control rod 410, so that the two baffles 19 are staggered.

[0069] Based on the above design, considering that the parts 3 to be tested have different sizes, the positioning members 400 can be adapted to the different sizes of the parts 3 to be tested by adjusting the spacing between the two positioning members 400. The base 2 can also be adapted to the different sizes of the parts 3 to be tested by adjusting the spacing between the two stop bars 19.

[0070] Specifically, the operating rod 21 is rotated, and the operating rod 21 drives the transmission rack 22 to slide in the second base 18, and the two blocking bars 19 are closed or separated from each other, thereby adjusting the size of the centering groove to adapt to parts 3 to be tested of different sizes.

[0071] In one possible implementation, Figure 9 As shown, the conveying module 100 is provided with a baffle 102 located on the opposite side of the positioning module 200. Accordingly, when the positioning module 200 clamps the part 3 to be tested through two opposing positioning blocks 406, the baffle 102 is used to limit the position of the part 3 to be tested and the positioning blocks 406; Along the moving direction of the part 3 to be tested, a guide inclined plate 101 connected to the upstream of the baffle 102 is provided. The guide inclined plate 101 is used to guide the part 3 to be tested 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 part 3 to be tested and the adjustment block 406 , and the baffle 102 is arranged opposite to the telescopic rod 501 .

[0072] Based on the above design, when the positioning module 200 uses two opposing positioning blocks 406 to clamp the part 3 under test, the part 3 is pushed by the positioning blocks 406 and moves along the conveyor module 100. At this point, the baffle 102 provides a limit, ensuring that the part 3 under test is stationary relative to the positioning blocks 406, allowing the two positioning blocks 406 to cooperate and clamp the part 3 under test. The specific process has been described in conjunction with the structure of the positioning module 200 and will not be repeated here. This prevents the positioning blocks 406 from pushing the part 3 under test, ensuring that subsequent testing can proceed normally.

[0073] Furthermore, after the test of the part 3 to be tested is completed, it is sent back to the conveying module 100 through the positioning module 200. At this time, the telescopic rod 501 is extended to block the tested part 3, so that the positioning module 200 is separated from the part 3 to be tested. The specific process has been explained in conjunction with the structure of the positioning module 200 and will not be repeated here.

[0074] Considering that the position of the part 3 to be tested on the conveying module 100 is somewhat random, the guide inclined plate 101 is used to guide the direction of the part 3 to be tested, ensuring that the part 3 to be tested moves to between the baffle 102 and the positioning module 200 .

[0075] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method 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 in the scope of protection of the present invention.

Claims

1. A pneumatic test tool, characterized in that: It comprises a housing (1), a base (2) and a pneumatic test unit; The base (2) is arranged at the lower part of the housing (1) and is used to mount the part to be tested (3); The pneumatic test unit is arranged in the housing (1) and located above the base (2), and the pneumatic test unit is used to test the part to be tested (3); The pneumatic test unit comprises a test plate (4) adapted to the part to be tested (3), wherein a plurality of connections are provided between the part to be tested (3) and the test plate (4), and the test plate (4) is slidably arranged accordingly so that the plurality of connections are connected or disconnected synchronously.

2. The pneumatic test fixture according to claim 1, characterized in that: The pneumatic test unit comprises a first mounting plate (5), a guide shaft (6) and a cylinder (7); The first mounting plate (5) is fixed in the housing (1); The bottom surface of the first mounting plate (5) is connected to the guide shaft (6). Accordingly, the first mounting plate (5) is suspended above the base (2) via the guide shaft (6). A second mounting plate (8) is slidably provided on the guide shaft (6), and the test plate (4) is provided on the second mounting plate (8). The top surface of the first mounting plate (5) is connected to the cylinder (7), and accordingly, 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) are synchronously lifted and lowered along the guide shaft (6).

3. The pneumatic test fixture according to claim 2, characterized in that: Two groups of guide shafts (6) are provided and are arranged oppositely on both sides of the first mounting plate (5); The second mounting plate (8) is connected to the guide shaft (6) via a shaft sleeve (9); a buffer plate (11) is connected to the bottom surface of the second mounting plate (8) via a spring (10); accordingly, a floating shaft for connecting to the spring (10) is provided on the bottom surface of the second mounting plate (8), and a through hole adapted to fit the test plate (4) is provided on the buffer plate (11).

4. The pneumatic test fixture according to any one of claims 1 to 3, characterized in that: One side of the housing (1) is open so that the space inside the housing (1) is connected to the outside. Accordingly, a conveying module (100) and a positioning module (200) are provided outside the housing (1). The conveying module (100) is used to convey the part to be tested (3), and the positioning module (200) is used to transfer the part to be tested (3) between the base (2) and the conveying module (100).

5. The pneumatic test fixture according to claim 4, characterized in that: A gap is left between the open side of the housing (1) and the conveying module (100), and the positioning module (200) is located in the gap; The positioning module (200) comprises a base plate (300) and a positioning member (400), wherein the base plate (300) is arranged in a gap, and two positioning members (400) are provided and arranged oppositely on two sides of the base plate (300), and correspondingly, a transfer groove adapted to the part to be tested (3) is formed between the two positioning members (400).

6. The pneumatic test fixture according to claim 5, characterized in that: The positioning member (400) comprises a driver (401), a lifting rod (402), a first plate (403), a second plate (404), a third plate (405) and a positioning block (406); The driver (401) is located below the base plate (300); the output end of the driver (401) is connected to the lifting rod (402) via a transmission disc (407); The lifting rod (402) is vertically and slidably arranged on the base plate (300); the lifting rod (402) includes a base rod (408) and a screw rod (409) connected in sequence from top to bottom, the upper end of the base rod (408) is passed through the top of the base plate (300) and is connected to the first plate body (403) through the control rod (410), the lower end of the base rod (408) is located below the base plate (300) and is connected to the screw rod (409), and the screw rod (409) is connected to the transmission plate (407) to enable the lifting rod (402) to reciprocate. The end of the first plate body (403) is hingedly connected to a rotating plate, which has a folding position for folding and storing in the transfer groove and an extension position for rotating to be located in the same straight line as the first plate body (403); accordingly, the rotating plate is constructed to be divided into a second plate body (404) and a third plate body (405) located at both ends of the first plate body (403); The adjustment block (406) is slidably arranged on the first plate (403) and is used to move the part to be tested (3). Accordingly, the first plate (403) and the rotating plate are both provided with adjustment slots adapted to the adjustment block (406); The rotating plate is hinged to the first plate body (403) via a torsion spring so that the rotating plate is in a folding position; two control rods (410) are provided and are located on both sides of the base rod (408), and the two control rods (410) are respectively used to control the rotating plate to switch to the extension position.

7. The pneumatic test fixture according to claim 6, characterized in that: The control rod (410) includes 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) via a torsion spring. The other end of the first rod body (411) extends toward the first plate body (403) and is connected to the second rod body (412). The second rod body (412) is slidably disposed in the first plate body (403). Correspondingly, a control hole adapted to fit the base rod (408) is provided on the base plate (300), and the bottom surface of the first plate body (403) is connected to the base plate (300) via a 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 to above the base (2), and the end of the base rod (408) passes through the first plate body (403) and moves upward until the first rod body (411) is separated from the control hole and rotates outward from the base rod (408), and the first rod body (411) rotates outward 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 extension position; when the base rod (408) moves downward, the first rod body (411) passes through the control hole and is received 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, a first sliding groove adapted to the second rod (412) is provided on the first plate (403), and a second sliding groove adapted to the second rod (412) is provided on the rotating plate. The first sliding groove is connected to the second sliding groove and forms a control groove.

8. The pneumatic test fixture according to any one of claims 5 to 7, characterized in that: The base (2) includes a first base (13), a stopper (14) and a bracket (15); two stoppers (14) are provided and are arranged on the first base (13) in a relative manner; the two stoppers (14) are both slidably arranged on the first base (13), and the bottoms of the two stoppers (14) are connected to the bracket (15); The bracket (15) has a threaded rod section, and the bracket (15) is connected to the transmission plate (407) of the position adjusting member (400) through the threaded rod section, and the threaded direction of the threaded rod section and the lifting rod (402) are opposite, so that the stopper (14) and the position adjusting member (400) can be raised and lowered asynchronously; Of the two stops (14), one is a near stop (16) close to the positioning member (400), and the other is a far stop (17) far from the positioning member (400), and the far stop (17) is higher than 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 to prompt that the part to be tested (3) is in place.

9. The pneumatic test fixture according to claim 8, characterized in that: The stopper (14) includes a second base (18), a stop bar (19) and a pressure plate (20), wherein the second base (18) is slidably arranged on the first base (13), and two stop bars (19) are provided and are arranged oppositely on the second base (18) to form a centering groove for adjusting the position of the part to be measured (3), and 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 arranged on the second base (18) and is located in the centering groove, and the pressure plate (20) is used to press down and fix the part to be measured (3); An operating rod (21) is provided on the second base (18), and a transmission tooth for connecting the baffle (19) is provided on the operating rod (21). Accordingly, the baffle (19) is connected to the operating rod (21) through a transmission rack (22), so that the operating rod (21) drives the baffle (19) to slide back and forth along the second base (18); accordingly, two transmission racks (22) are provided and are respectively located on both sides of the control rod (410), so that the two baffles (19) are staggered.

10. The pneumatic test fixture according to any one of claims 5 to 9, characterized in that: The conveying module (100) is provided with a baffle (102) located on the opposite side of the positioning module (200). Accordingly, when the positioning module (200) clamps the part to be tested (3) through two opposing positioning blocks (406), the baffle (102) is used to limit the position of the part to be tested (3) and the positioning blocks (406); Along the moving direction of the part to be tested (3), a guide inclined plate (101) connected thereto is provided upstream of the baffle (102), and the guide inclined plate (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 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 part to be tested (3) and the adjustment block (406), and the baffle (102) is arranged opposite to the telescopic rod (501).

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