A kind of detection device suitable for automobile PCB board electronic circuit board

Abstract

The utility model discloses a kind of suitable for automobile PCB electronic circuit board detection device, the utility model relates to circuit board detection technical field.It is equipped with installation mechanism for automobile PCB electronic circuit board detection on the installation platform, the utility model first electric push rod telescopic end drives push block to move, movable rod of push block two sides rotates around rotating shaft, to push slider to slide in sliding slot, slider drives the movement of upper end's limiting support, realize the opening and closing of limiting support, clamping is carried out to circuit board two sides, by the cooperation of limiting support and clamping plate, it can be clamped from the two sides of circuit board and front and rear two sides, realize the stable fixation of automobile PCB electronic circuit board, ensure that circuit board does not move in detection process, improve the accuracy of detection, then the setting of rubber rod can adapt to circuit board containing protrusion of side wall, expand the application range of clamping assembly, reduce the problem of not tight clamping due to special structure of circuit board.

Description

Technical Field

[0001] This utility model relates to the field of circuit board testing technology, specifically to a testing device for automotive PCB electronic circuit boards. Background Technology

[0002] Circuit boards are providers of electrical connections for electronic components. Their design is mainly layout design. The main advantages of using circuit boards are that they greatly reduce wiring and assembly errors, improve automation levels and production efficiency. After the PCB circuit boards are produced, they need to be sampled and tested in conjunction with circuit board test fixtures.

[0003] Reference patent (publication number: CN219957645U; publication date: 2023-11-03) discloses a PCB circuit board testing fixture, relating to the field of circuit board testing technology; while this utility model includes a workbench, on the upper surface of which two symmetrically distributed positioning plates are fixedly mounted, the positioning plates being L-shaped, a first groove is formed inside the workbench, and two symmetrically distributed sliders are slidably mounted inside the first groove, and two symmetrically distributed sliding grooves are formed on the upper surface of the workbench; a drive shaft drives a lead screw to rotate, causing the sliders threaded at both ends of the lead screw to face one end, thereby causing the two sliders to drive the two positioning plates to move towards each other, thus enabling the positioning plates to stably stop the two ends of the PCB circuit board. At this time, the operator only needs to hold the testing probe for testing without pressing, and at the same time, it can avoid the PCB circuit board from moving during the testing process, making it convenient for the operator to operate.

[0004] Based on the aforementioned patents, the clamping structures of some automotive PCB electronic circuit board testing devices on the market are relatively simple, typically only clamping and fixing the circuit board from both sides. While this single fixing method may be barely applicable to some regularly shaped, flat circuit boards, it cannot achieve stable and tight clamping for circuit boards with special structures, such as those with protrusions on the sidewalls, irregular shapes, or specially designed edges. During testing, the circuit board is prone to movement due to insecure fixing, leading to deviations in the testing position. Furthermore, automotive PCB board testing mainly relies on manual operation, which is inefficient and prone to fatigue from prolonged work. When the testing probe contacts the PCB board, excessive impact can easily cause probe wear or damage to precision components on the PCB board. Therefore, this utility model provides a testing device suitable for automotive PCB electronic circuit boards. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a testing device for automotive PCB electronic circuit boards. It solves the problem that some current automotive PCB electronic circuit board testing devices on the market have relatively simple clamping structures, typically only clamping and fixing the circuit board from both sides. While this single fixing method may be barely applicable to some regularly shaped, flat circuit boards, it cannot achieve stable and tight clamping for circuit boards with special structures, such as those with protrusions on the sidewalls, irregular shapes, or specially designed edges. During testing, the circuit board is prone to movement due to insecure fixing, leading to deviations in the testing position. Furthermore, automotive PCB testing mainly relies on manual operation, which is inefficient and prone to fatigue from prolonged work. When the testing probe contacts the PCB board, excessive impact can easily cause probe wear or damage to precision components on the PCB board.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a testing device for automotive PCB electronic circuit boards, comprising a mounting platform, wherein the mounting platform is provided with a mounting mechanism for testing automotive PCB electronic circuit boards, the mounting mechanism comprising:

[0007] The clamping assembly includes a sliding groove on the upper surface of the mounting platform, a limiting bracket connected by a pushing assembly inside the sliding groove, a clamping plate connected by a threaded assembly inside the limiting bracket, and a rubber rod fixed to one end of the clamping plate;

[0008] The operating component includes a mounting base fixed at the upper edge of the mounting platform. The mounting base has a mounting housing connected by a gear assembly inside. A fourth electric push rod is vertically mounted inside the mounting housing. A mounting plate is fixed to the lower end of the fourth electric push rod. A detection probe connected by an elastic assembly is disposed inside one end of the mounting plate.

[0009] Preferably, the jacking assembly includes a first electric push rod fixed to the lower end face of the mounting platform, a push block fixed to the telescopic end of the first electric push rod, movable rods rotatably connected to both sides of the push block via a rotating shaft, a slider slidably connected inside the slide groove, the lower end of the slider being rotatably connected to the other end of the movable rod via a rotating shaft, and a limiting bracket fixedly connected to the upper end of the slider, the limiting bracket being slidably connected.

[0010] Preferably, the limiting bracket has a guide groove inside, a fixing block is fixed at the center end of the guide groove, and lead screws are rotatably connected to both sides of the fixing block. One end of the clamping plate is located on the inner wall of the guide groove, and the clamping plate and the lead screws are threaded together.

[0011] Preferably, the gear assembly includes a cavity slot opened inside the mounting base, a second electric push rod fixed inside the cavity slot, a gear rod fixed to the telescopic end of the second electric push rod, a support shaft rotatably connected to the cavity slot in the vertical direction, a mounting block fixed to the outer wall of the support shaft, a transmission gear fixed to the lower end of the support shaft, the transmission gear being meshed with the gear rod, a third electric push rod disposed inside the mounting block, and the mounting housing being fixedly connected to the telescopic end of the third electric push rod.

[0012] Preferably, the elastic component includes a buffer housing fixed to the upper surface of the mounting plate, a movable groove is provided inside the buffer housing, a shock-absorbing spring is fixed to the upper end of the movable groove, a limit plate is fixed to the end of the shock-absorbing spring, the limit plate is slidably connected to the movable groove, a damping support rod is provided in the inner ring of the shock-absorbing spring, the damping support rod is fixedly connected to the limit plate, and the detection probe is located inside the limit plate and is fixedly connected through it, and the detection probe is slidably connected to the buffer housing and the mounting plate.

[0013] Preferably, a multimeter is fixed at the center of the side wall of the mounting base, the multimeter is connected to the detection probe via a wire, a crossbar is fixed to the side wall of the mounting base, and a support ring for supporting the wire is fixed to the end of the crossbar.

[0014] Beneficial effects

[0015] This invention provides a testing device for electronic circuit boards on automotive PCBs. Compared with the prior art, it has the following advantages:

[0016] Firstly, the telescopic end of the first electric push rod of this utility model drives the push block to move. The movable rods on both sides of the push block rotate around the rotating shaft, thereby pushing the slider to slide in the slide groove. The slider drives the upper limit bracket to move, realizing the opening and closing of the limit bracket, clamping the circuit board on both sides. Through the cooperation of the limit bracket and the clamping plate, the circuit board can be clamped from both sides and the front and rear sides, realizing the stable fixation of the automotive PCB electronic circuit board, ensuring that the circuit board will not move during the test, and improving the accuracy of the test. Furthermore, the rubber rod can adapt to circuit boards with protrusions on the side walls, expanding the applicable range of the clamping component and reducing the problem of loose clamping caused by the special structure of the circuit board.

[0017] Secondly, in the operation of the gear assembly of this utility model, the telescopic end of the second electric push rod drives the gear rod to move. Since the transmission gear is meshed with the gear rod, the transmission gear will drive the support shaft to rotate, and the support shaft will drive the mounting block to rotate. At the same time, the telescopic extension of the third electric push rod can drive the mounting housing to move, thereby adjusting the horizontal position of the detection probe. The telescopic extension of the fourth electric push rod drives the mounting plate to move up and down, thereby adjusting the vertical position of the detection probe. Through the cooperation of the gear assembly, the third electric push rod and the fourth electric push rod, the detection probe can be adjusted at multiple angles and positions, which facilitates the detection of different positions of the electronic circuit board of the automotive PCB board, improves the comprehensiveness of the detection, reduces manual intervention due to the automated structure, improves the working efficiency of the equipment, and the setting of the elastic component can play a buffering role when the detection probe contacts the circuit board, reducing the damage to the detection probe and the circuit board caused by collision. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the limiting bracket structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the rubber rod structure of this utility model;

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

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

[0023] Figure 6 This is a schematic diagram of the buffer shell structure of this utility model.

[0024] In the diagram: 1. Mounting platform; 2. Slide groove; 201. Slider; 202. First electric push rod; 203. Push block; 204. Movable rod; 205. Limiting bracket; 206. Guide groove; 207. Fixing block; 208. Lead screw; 209. Clamping plate; 3. Rubber rod; 4. Mounting base; 401. Cavity groove; 402. Support shaft; 403. Mounting block; 404. Second electric push rod; 405. Gear rod; 406. Transmission gear; 5. Third electric push rod; 501. Mounting housing; 502. Fourth electric push rod; 503. Mounting plate; 504. Buffer housing; 505. Movable groove; 506. Shock-absorbing spring; 507. Damping support rod; 508. Limiting plate; 509. Detection probe; 6. Crossbar; 601. Support ring; 602. Multimeter. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-6 This utility model provides a technical solution: a testing device for automotive PCB electronic circuit boards, including a mounting platform 1, on which a mounting mechanism for testing automotive PCB electronic circuit boards is provided, the mounting mechanism including:

[0027] The clamping assembly includes a slide groove 2 on the upper surface of the mounting platform 1, a limiting bracket 205 connected by a push assembly inside the slide groove 2, a clamping plate 209 connected by a threaded assembly inside the limiting bracket 205, and a rubber rod 3 fixed to one end of the clamping plate 209.

[0028] The operating components include a mounting base 4 fixed at the edge of the upper surface of the mounting platform 1. The mounting base 4 has a mounting housing 501 connected by a gear assembly inside. A fourth electric push rod 502 is vertically mounted inside the mounting housing 501. A mounting plate 503 is fixed to the lower end of the fourth electric push rod 502. A detection probe 509 connected by an elastic assembly is provided inside one end of the mounting plate 503.

[0029] In a preferred embodiment, the push assembly includes a first electric push rod 202 fixed to the lower end face of the mounting platform 1. A push block 203 is fixed to the telescopic end of the first electric push rod 202. Movable rods 204 are rotatably connected to both sides of the push block 203 via a rotating shaft. A slider 201 is slidably connected inside the slide groove 2. The lower end of the slider 201 is rotatably connected to the other end of the movable rod 204 via a rotating shaft. A limiting bracket 205 is fixedly connected to the upper end of the slider 201 and is slidably connected. The limiting bracket 205 can clamp both sides of the circuit board when it is opened and closed.

[0030] Furthermore, when the push assembly is in operation, the telescopic end of the first electric push rod 202 drives the push block 203 to move. The movable rods 204 on both sides of the push block 203 rotate around the rotating shaft, thereby pushing the slider 201 to slide in the slide groove 2. The slider 201 drives the upper limit bracket 205 to move, realizing the opening and closing of the limit bracket 205 and clamping the two sides of the circuit board.

[0031] In a preferred embodiment, the limiting bracket 205 has a guide groove 206 inside, and a fixing block 207 is fixed at the center end of the guide groove 206. The two sides of the fixing block 207 are rotatably connected to lead screws 208. One end of the clamping plate 209 is located on the inner wall of the guide groove 206. The clamping plate 209 is threadedly connected to the lead screw 208. When the lead screws 208 on both sides of the fixing block 207 are rotated, the two sets of clamping plates 209 open and close to clamp the front and rear sides of the circuit board.

[0032] Furthermore, the threaded assembly operates by rotating the lead screws 208 on both sides of the fixing block 207. Since one end of the clamping plate 209 is located on the inner wall of the guide groove 206 and is threadedly connected to the lead screw 208, the two sets of clamping plates 209 will open and close within the guide groove 206 to clamp the front and rear sides of the circuit board.

[0033] The rubber rod 3 fixed at one end of the clamping plate 209 is used to push the circuit board with protrusions on the side wall, so as to prevent the limiting bracket 205 from not being able to fit tightly with the side wall of the circuit board, and the rubber rod 3 reduces the contact area with the circuit board.

[0034] In a preferred embodiment, the gear assembly includes a cavity groove 401 formed inside the mounting base 4. A second electric push rod 404 is fixed inside the cavity groove 401. A gear rod 405 is fixed to the telescopic end of the second electric push rod 404. A support shaft 402 is rotatably connected to the cavity groove 401 in the vertical direction. A mounting block 403 is fixed to the outer wall of the support shaft 402. A transmission gear 406 is fixed to the lower end of the support shaft 402. The transmission gear 406 is meshed with the gear rod 405. A third electric push rod 5 is provided inside the mounting block 403. The mounting housing 501 is fixedly connected to the telescopic end of the third electric push rod 5.

[0035] Furthermore, when the gear assembly operates, the telescopic end of the second electric push rod 404 drives the gear rod 405 to move. Since the transmission gear 406 meshes with the gear rod 405, the transmission gear 406 drives the support shaft 402 to rotate. The support shaft 402 drives the mounting block 403 to rotate. At the same time, the telescopic extension of the third electric push rod 5 can drive the mounting housing 501 to move, thereby adjusting the horizontal position of the detection probe 509. The telescopic extension of the fourth electric push rod 502 drives the mounting plate 503 to move up and down, thereby adjusting the vertical position of the detection probe 509 so that the detection probe 509 reaches the appropriate detection position.

[0036] In a preferred embodiment, the elastic component includes a buffer housing 504 fixed to the upper surface of the mounting plate 503. A movable groove 505 is provided inside the buffer housing 504. A damping spring 506 is fixed to the upper end of the movable groove 505. A limiting plate 508 is fixed to the end of the damping spring 506. The limiting plate 508 is slidably connected to the movable groove 505. A damping support rod 507 is provided on the inner ring of the damping spring 506. The damping support rod 507 is fixedly connected to the limiting plate 508. A detection probe 509 is located inside the limiting plate 508 and is fixedly connected through it. The detection probe 509 is slidably connected to the buffer housing 504 and the mounting plate 503. A multimeter 602 is fixed at the center of the side wall of the mounting base 4. The multimeter 602 is connected to the detection probe 509 via a wire. A crossbar 6 is fixed to the side wall of the mounting base 4. A support ring 601 for supporting the wire is fixed to the end of the crossbar 6.

[0037] When the detection probe 509 contacts the circuit board for detection, the elastic component comes into play. The detection probe 509 is subjected to pressure, which causes the limiting plate 508 to slide within the movable groove 505, compressing the shock-absorbing spring 506. The damping support rod 507 provides damping, reducing the impact force and protecting the detection probe 509 and the circuit board.

[0038] The data detected by the probe 509 is transmitted to the multimeter 602 via a wire. The support ring 601 at the end of the crossbar 6 supports the wire and prevents the wire from becoming tangled and affecting the detection operation.

[0039] Additional explanation: The multimeter is electrically connected to two test probes with positive and negative terminals. The multimeter and the test probes are used to detect whether the circuit board is short-circuited. The specific operation is a mature existing technology and will not be described in detail here.

[0040] The electric linear actuator used above is model SLEL205.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0042] The working process of the automotive PCB electronic circuit board testing device is as follows: First, the circuit board to be tested is placed on the mounting platform 1. The clamping assembly starts to work. The telescopic end of the first electric push rod 202 in the push assembly drives the push block 203 to move. The movable rods 204 on both sides of the push block 203 rotate around the rotating shaft, pushing the slider 201 to slide in the slide groove 2. The slider 201 drives the upper limit bracket 205 to move, realizing the opening and closing of the limit bracket 205, and initially clamping the two sides of the circuit board.

[0043] Next, the threaded assembly operates, rotating the lead screws 208 on both sides of the fixing block 207. Since one end of the clamping plate 209 is located on the inner wall of the guide groove 206 and is threadedly connected to the lead screw 208, the two sets of clamping plates 209 open and close within the guide groove 206, further clamping the front and rear sides of the circuit board. At the same time, the rubber rod 3 at one end of the clamping plate 209 pushes the circuit board with protrusions on the side wall, ensuring a tight fit and reducing the contact area. Subsequently, the operating component is activated. The telescopic end of the second electric push rod 404 in the gear assembly drives the gear rod 405 to move. Since the transmission gear 406 meshes with the gear rod 405, the transmission gear 406 drives the support shaft 402 to rotate. The support shaft 402 drives the mounting block 403 to rotate. At the same time, the telescopic extension of the third electric push rod 5 drives the mounting housing 501 to move, adjusting the horizontal position of the detection probe 509. The telescopic extension of the fourth electric push rod 502 drives the mounting plate 503 to move up and down, adjusting the vertical position of the detection probe 509 to reach the appropriate detection position.

[0044] When the detection probe 509 contacts the circuit board, the elastic component functions, and the detection probe 509 is pressured to drive the limiting plate 508 to slide within the movable groove 505, compressing the shock-absorbing spring 506. The damping support rod 507 acts as a damper to reduce the impact force and protect the detection probe 509 and the circuit board. Finally, the data detected by the detection probe 509 is transmitted to the multimeter 602 through the wires. The support ring 601 at the end of the crossbar 6 supports the wires and prevents the wires from becoming tangled and affecting the operation.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for electronic circuit boards on automotive PCBs, comprising a mounting platform (1), characterized in that: The mounting platform (1) is equipped with a mounting mechanism for testing automotive PCB electronic circuit boards. The mounting mechanism includes: The clamping assembly includes a mounting platform (1) with a slide groove (2) on the upper surface. The slide groove (2) is provided with a limiting bracket (205) connected by a push assembly. The limiting bracket (205) is provided with a clamping plate (209) connected by a threaded assembly. One end of the clamping plate (209) is fixed with a rubber rod (3). The operating components include a mounting base (4) fixed at the edge of the upper surface of the mounting platform (1), and a mounting housing (501) connected by a gear assembly is provided inside the mounting base (4). A fourth electric push rod (502) is vertically mounted inside the mounting housing (501). A mounting plate (503) is fixed at the lower end of the fourth electric push rod (502). A detection probe (509) connected by an elastic assembly is provided inside one end of the mounting plate (503).

2. The testing device for automotive PCB electronic circuit boards according to claim 1, characterized in that: The jacking assembly includes a first electric push rod (202) fixed to the lower end face of the mounting platform (1), a push block (203) fixed to the telescopic end of the first electric push rod (202), movable rods (204) rotatably connected to the push block (203) on both sides by a rotating shaft, a slider (201) slidably connected inside the slide groove (2), the lower end of the slider (201) rotatably connected to the other end of the movable rod (204) by a rotating shaft, and a limiting bracket (205) fixedly connected to the upper end of the slider (201) and slidably connected.

3. The testing device for automotive PCB electronic circuit boards according to claim 1, characterized in that: The limiting bracket (205) has a guide groove (206) inside. A fixing block (207) is fixed at the center end of the guide groove (206). A lead screw (208) is rotatably connected to both sides of the fixing block (207). One end of the clamping plate (209) is located on the inner wall of the guide groove (206). The clamping plate (209) is threadedly connected to the lead screw (208).

4. The testing device for automotive PCB electronic circuit boards according to claim 1, characterized in that: The gear assembly includes a cavity groove (401) inside the mounting base (4), a second electric push rod (404) is fixed inside the cavity groove (401), a gear rod (405) is fixed to the telescopic end of the second electric push rod (404), a support shaft (402) is rotatably connected to the vertical direction of the cavity groove (401), a mounting block (403) is fixed to the outer wall of the support shaft (402), a transmission gear (406) is fixed to the lower end of the support shaft (402), the transmission gear (406) is meshed with the gear rod (405), a third electric push rod (5) is provided inside the mounting block (403), and the mounting housing (501) is fixedly connected to the telescopic end of the third electric push rod (5).

5. The testing device for automotive PCB electronic circuit boards according to claim 1, characterized in that: The elastic component includes a buffer shell (504) fixed to the upper surface of the mounting plate (503). The buffer shell (504) has a movable groove (505) inside. A shock-absorbing spring (506) is fixed to the upper end of the movable groove (505). A limit plate (508) is fixed to the end of the shock-absorbing spring (506). The limit plate (508) is slidably connected to the movable groove (505). A damping rod (507) is provided on the inner ring of the shock-absorbing spring (506). The damping rod (507) is fixedly connected to the limit plate (508). A detection probe (509) is located inside the limit plate (508) and is fixedly connected through it. The detection probe (509) is slidably connected to the buffer shell (504) and the mounting plate (503).

6. The testing device for automotive PCB electronic circuit boards according to claim 1, characterized in that: A multimeter (602) is fixed at the center of the side wall of the mounting base (4). The multimeter (602) is connected to the detection probe (509) by a wire. A crossbar (6) is fixed on the side wall of the mounting base (4). A support ring (601) for supporting the wire is fixed at the end of the crossbar (6).

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