Circuit board testing device and equipment capable of being horizontally pressed down

Abstract

The utility model discloses a circuit board testing device and equipment capable of horizontally pressing down, and relates to the technical field of testing. A pressing-down driving assembly drives an upper connecting assembly to move up and down; the carrier plate supporting assembly is used for placing a product carrier plate; the lower connecting assembly is located below the upper connecting assembly, and the carrier plate supporting assembly is located between the upper connecting assembly and the lower connecting assembly. The left side and the right side of the upper connecting assembly are connected with the left downward-pressing driving assembly and the right downward-pressing driving assembly correspondingly, and the left downward-pressing driving assembly and the right downward-pressing driving assembly synchronously drive the upper connecting assembly to horizontally press downwards and press downwards the product carrying plate. And the communication connection pins on the upper connection assembly and the communication connection pins on the lower connection assembly are respectively connected with the test points on the front and back surfaces of the circuit board to be detected on the product carrier plate. Through the design, the detection efficiency and the detection stability can be improved, and the situation that the circuit board to be detected is damaged due to the fact that the product carrier plate is warped is avoided.

Description

Technical Field

[0001] This application relates to the field of testing technology, and in particular to a circuit board testing device and equipment that can be horizontally pressed down. Background Technology

[0002] With the rapid development of electronic technology, the integration and output of circuit boards are constantly increasing, which puts forward higher requirements for the quality and performance of circuit boards. As a result, circuit board defect detection technology has become a very critical technology in the electronics industry. In order to ensure the performance and reliability of electronic products, the performance testing of circuit boards has become particularly important.

[0003] Traditional manual testing methods are inefficient and prone to errors, resulting in low testing stability. Utility Model Content

[0004] The purpose of this application is to provide a circuit board testing device and equipment that can be horizontally pressed down, thereby improving testing efficiency and stability, and preventing damage to the circuit board under test due to the product carrier board tilting.

[0005] This application discloses a circuit board testing device capable of horizontal downward pressure, including a main support, a downward pressure driving assembly, an upper connecting assembly, a carrier board support assembly, and a lower connecting assembly. The downward pressure driving assembly is connected to the main support, and the upper connecting assembly is connected to the downward pressure driving assembly, which drives the upper connecting assembly to move up and down. The carrier board support assembly is connected to the main support and is used to place a product carrier board, which is used to place the circuit board to be tested. The lower connecting assembly is connected to the main support and is located below the upper connecting assembly, while the carrier board support assembly is located between the upper and lower connecting assemblies.

[0006] The downward pressure drive assembly includes a left downward pressure drive assembly, a right downward pressure drive assembly, and a downward pressure drive motor. The left downward pressure drive assembly, the right downward pressure drive assembly, and the downward pressure drive motor are all connected to the main support. The downward pressure drive motor simultaneously drives the left downward pressure drive assembly and the right downward pressure drive assembly to work.

[0007] The left and right sides of the upper connecting component are respectively connected to the left lower pressing drive component and the right lower pressing drive component. The left lower pressing drive component and the right lower pressing drive component synchronously drive the upper connecting component to press down horizontally and press down on the product carrier board, so that the communication connection pins on the upper connecting component and the communication connection pins on the lower connecting component are respectively connected to the test points on the front and back sides of the circuit board to be tested on the product carrier board.

[0008] Optionally, the main support includes an upper plate, a support rod, and a lower plate. The upper plate and the lower plate are arranged opposite to each other. The two ends of the support rod are respectively connected to the upper plate and the lower plate. The left lower pressure drive assembly, the right lower pressure drive assembly, and the lower pressure drive motor are all connected to the side of the upper plate near the lower plate. The carrier plate support assembly and the lower connection assembly are both connected to the side of the lower plate near the upper plate.

[0009] Optionally, the left downward pressure drive assembly includes a left L-shaped plate, a left slide rail, a left vertical screw, a left U-shaped slider, and a left limiting fixing plate;

[0010] The top of the left L-shaped plate is connected to the upper plate. The left slide rail is set on the L-shaped plate, and the length direction of the left slide rail is vertical. The inner wall of the left U-shaped slider is slidably connected to the left slide rail. The left limiting fixing plate is connected to the left U-shaped slider. The top end of the left vertical screw passes through the upper plate, and the bottom end passes through the left U-shaped slider and is threadedly connected to the L-shaped plate. The left vertical screw is threadedly connected to the left U-shaped slider. The rotation of the left vertical screw drives the left U-shaped slider to move up and down, and drives the left limiting fixing plate to move up and down.

[0011] The right downward pressure drive assembly includes a right L-shaped plate, a right slide rail, a right vertical screw, a right U-shaped slider, and a right limiting and fixing plate;

[0012] The top of the right L-shaped plate is connected to the upper plate. The right slide rail is set on the L-shaped plate, and the length direction of the right slide rail is vertical. The inner wall of the right U-shaped slider is slidably connected to the right slide rail. The right limiting fixing plate is connected to the right U-shaped slider. The top end of the right vertical screw passes through the upper plate, and the bottom end passes through the right U-shaped slider and is connected to the L-shaped plate. The right vertical screw is threadedly connected to the right U-shaped slider. The rotation of the right vertical screw drives the right U-shaped slider to move up and down, and drives the right limiting fixing plate to move up and down.

[0013] The left and right sides of the upper connecting component are respectively connected to the left limiting fixing plate and the right limiting fixing plate.

[0014] Optionally, the downward drive assembly further includes a timing belt, a gear is provided at the top end of the left vertical screw, a gear is provided at the top end of the right vertical screw, the timing belt meshes with the gear at the top end of the left vertical screw, the gear at the top end of the right vertical screw, and the output end of the downward drive motor, and the downward drive motor drives the left vertical screw and the right vertical screw to rotate synchronously forward or in reverse through the timing belt.

[0015] Optionally, the carrier plate support assembly includes a front crossbar, a rear crossbar, and four elastic couplings. The two ends of the front crossbar are respectively connected to the lower plate body through two of the elastic couplings, and the two ends of the rear crossbar are respectively connected to the lower plate body through the other two elastic couplings.

[0016] The elastic assembly includes a lower slider, a connecting post, a return spring, an upper block, and a crossbar connecting block. The lower slider is disposed on the lower plate. The crossbar connecting block is located between the lower slider and the upper block. The bottom end of the connecting post is connected to the side of the lower slider away from the lower plate, and the top end passes through the crossbar connecting block and is connected to the upper block. The return spring is sleeved on the connecting post, and both ends of the return spring abut against the lower slider and the crossbar connecting block, respectively.

[0017] The front crossbar is connected to the crossbar connecting blocks of the two elastic components respectively, and the rear crossbar is connected to the crossbar connecting blocks of the other two elastic components respectively; the two sides of the product carrier plate are respectively placed on the front crossbar and the rear crossbar.

[0018] Optionally, the carrier plate support assembly further includes a slide rail and a horizontal screw assembly. Both the slide rail and the horizontal screw assembly are disposed on the lower plate. The lower slider of the elastic assembly connected to the rear crossbar is slidably connected to the slide rail. The lower slider of the elastic assembly connected to the rear crossbar is threadedly connected to the horizontal screw assembly. The horizontal screw assembly drives the lower slider to slide on the slide rail to adjust the distance between the front crossbar and the rear crossbar.

[0019] Optionally, the upper connecting assembly includes an upper connecting main plate, multiple sets of communication connecting pins, and a buffer assembly. The two sides of the upper connecting main plate are respectively connected to the left limiting fixing plate and the right limiting fixing plate. The multiple sets of communication connecting pins are located on the side of the upper connecting main plate away from the upper plate body. One end of the buffer assembly is located on the side of the upper connecting main plate away from the upper plate body, and the other end is used for the front crossbar or the rear crossbar to abut.

[0020] The lower connection assembly includes a lower connection main plate and multiple sets of communication connection pins. The lower connection main plate is connected to the side of the lower plate body close to the upper plate body. The multiple sets of communication connection pins are located on the side of the lower connection main plate away from the lower plate body. The communication connection pins on the upper connection main plate and the communication connection pins on the lower connection main plate are respectively used to connect to the test points on the front and back sides of the circuit board to be tested.

[0021] Optionally, the number of the buffer assembly includes four, and the four buffer assemblies are respectively located at the four corners of the upper connecting main body plate;

[0022] The buffer assembly includes a fixing part, a buffer spring, and a stop part. One end of the fixing part is connected to the side of the upper connecting main plate near the lower plate. The stop part is connected to the fixing part through a vertical slide rod. The stop part can move up and down relative to the fixing part. The two ends of the buffer spring are connected to the fixing part and the stop part, respectively.

[0023] This application also discloses a circuit board testing device, which includes a control host and a horizontally pressable circuit board testing device, wherein the control host is connected to the horizontally pressable circuit board testing device and is used to drive the horizontally pressable circuit board testing device to work.

[0024] Compared to existing methods that rely on manual inspection of circuit boards, this application employs a horizontally pressable circuit board testing device, which improves inspection efficiency and avoids inspection failures caused by instability due to manual operation. Furthermore, by simultaneously setting up left and right pressing drive components to press down on the upper connecting component from both sides, this application avoids the situation where the product carrier board tilts and the circuit board under test falls off and is damaged when there is only one pressing drive component, thus improving the reliability of the device. Attached Figure Description

[0025] The accompanying drawings, which form part of the specification, are used to provide a further understanding of the embodiments of this application and illustrate the implementation methods of this application, together with the textual description, to explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0026] Figure 1 This is a schematic diagram of a circuit board testing device according to an embodiment of this application;

[0027] Figure 2 This is a schematic diagram of a horizontally pressable circuit board testing device according to an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of a pressure-driven component according to an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of a carrier plate support assembly according to an embodiment of this application;

[0030] Figure 5 This is a schematic diagram of an upper connecting component and a lower connecting component according to an embodiment of this application.

[0031] Among them, 10 is the circuit board testing equipment; 20 is the control host; 30 is the circuit board testing device that can be horizontally pressed down; 100 is the main support; 110 is the upper plate; 120 is the support rod; 130 is the lower plate; 200 is the pressing drive assembly; 210 is the left pressing drive assembly; 211 is the left L-shaped plate; 212 is the left slide rail; 213 is the left vertical screw; 214 is the left U-shaped slider; 215 is the left limit fixing plate; 220 is the right pressing drive assembly; 221 is the right L-shaped plate; 222 is the right slide rail; 223 is the right vertical screw; 224 is the right U-shaped slider; 225 is the right limit fixing plate; 230 is the pressing drive motor; and 240 is the synchronous... Belt; 250, Gear; 300, Upper connecting assembly; 310, Upper connecting main plate; 320, Buffer assembly; 321, Fixing part; 322, Buffer spring; 323, Abutting part; 324, Vertical slide bar; 400, Carrier plate support assembly; 410, Front crossbar; 420, Rear crossbar; 430, Elastic assembly; 431, Lower slider; 432, Connecting column; 433, Return spring; 434, Upper top block; 435, Crossbar connecting block; 440, Slide rail; 450, Horizontal screw assembly; 500, Lower connecting assembly; 510, Lower connecting main plate; 610, Communication connecting pin; 710, Product carrier plate; 720, Circuit board to be tested. Detailed Implementation

[0032] It should be understood that the terminology, specific structural and functional details used herein are merely for describing particular embodiments and are representative. However, this application may be implemented in many alternative forms and should not be construed as being limited to the embodiments set forth herein.

[0033] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of technical features indicated. Therefore, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0034] In addition, terms such as “center,” “horizontal,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” that indicate orientation or positional relationship are based on the orientation or relative positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate 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 limitations on this application.

[0035] Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments.

[0037] Figure 1 This is a schematic diagram of a circuit board testing device according to an embodiment of this application, as shown below. Figure 1 As shown, this application discloses a circuit board testing device 10, which includes a control host 20 and a horizontally pressable circuit board testing device 30. The control host 20 is connected to the horizontally pressable circuit board testing device 30 and is used to drive the horizontally pressable circuit board testing device 30 to work.

[0038] The control host 20 may include a computer host. This application mainly improves the horizontally pressable circuit board testing device 30 to make it suitable for the circuit board testing equipment 10 described above. The specific improvements are as follows:

[0039] Figure 2 This is a schematic diagram of a horizontally pressable circuit board testing device according to an embodiment of this application, as shown below. Figure 2 As shown, this application discloses a horizontally pressable circuit board testing device 30, including a main support 100, a pressing drive assembly 200, an upper connecting assembly 300, a carrier board support assembly 400, and a lower connecting assembly 500. The pressing drive assembly 200 is connected to the main support 100, and the upper connecting assembly 300 is connected to the pressing drive assembly 200, which drives the upper connecting assembly 300 to move up and down. The carrier board support assembly 400 is connected to the main support 100 and is used to place a product carrier board 710, which is used to place a circuit board 720 to be tested. The lower connecting assembly 500 is connected to the main support 100 and is located below the upper connecting assembly 300. The carrier board support assembly 400 is located between the upper connecting assembly 300 and the lower connecting assembly 500.

[0040] The downward pressure drive assembly 200 includes a left downward pressure drive assembly 210, a right downward pressure drive assembly 220, and a downward pressure drive motor 230. The left downward pressure drive assembly 210, the right downward pressure drive assembly 220, and the downward pressure drive motor 230 are all connected to the main support 100. The downward pressure drive motor 230 simultaneously drives the left downward pressure drive assembly 210 and the right downward pressure drive assembly 220.

[0041] The left and right sides of the upper connecting component 300 are respectively connected to the left lower pressure driving component 210 and the right lower pressure driving component 220. The left lower pressure driving component 210 and the right lower pressure driving component 220 synchronously drive the upper connecting component 300 to press down horizontally and press down the product carrier board 710, so that the communication connection pins 610 on the upper connecting component 300 and the communication connection pins 610 on the lower connecting component 500 are respectively connected to the test points on the front and back sides of the circuit board 720 to be tested on the product carrier board 710.

[0042] For example, when the circuit board 720 to be tested needs to be tested, the circuit board 720 is placed on the product carrier board 710, and then the product carrier board 710 is placed on the carrier board support assembly 400. Then, the upper connecting assembly 300 is pressed down by the pressing drive assembly 200, so that the upper connecting assembly 300 abuts against the carrier board support assembly 400. The communication connection pins 610 on the upper connecting assembly 300 contact the test points on the front side of the circuit board 720 to be tested, and the carrier board support assembly 400 is pressed down. 00, which drives the product carrier board 710 to move downwards together, so that the communication connection pin 610 on the lower connection component 500 contacts the test point on the reverse side of the circuit board 720 to be tested, and the upper connection component 300 and the lower connection component 500 are communicatively connected, and the lower connection component 500 is communicatively connected to the main support 100. The upper connection component 300 and the lower connection component 500 transmit and acquire test data of the circuit board 720 to be tested, so as to complete the test of the circuit board 720 to be tested.

[0043] Furthermore, multiple circuit boards 720 to be tested can be placed on a product carrier board 710. For example, 28 circuit boards 720 to be tested are placed on the product carrier board 710 of this application. Correspondingly, 28 sets of communication connection pins 610 are also provided on the upper connection component 300 and the lower connection component 500 to test the 28 circuit boards 720 to be tested simultaneously.

[0044] Compared to the existing method of manually inspecting the circuit board 720 to be tested, this application improves the inspection efficiency and avoids the occurrence of inspection failures due to instability caused by manual operation by using a circuit board testing device 30 that can be horizontally pressed down to inspect the circuit board 720 to be tested.

[0045] Furthermore, this application also applies pressure to the upper connecting component 300 from both sides simultaneously by setting the left lower pressure drive component 210 and the right lower pressure drive component 220. This avoids the situation where only one lower pressure drive component 200 causes the product carrier board 710 to tilt and the circuit board under test 720 to fall off the product carrier board 710 and be damaged, thus improving the reliability of the device.

[0046] The main support 100 includes an upper plate 110, a support rod 120, and a lower plate 130. The upper plate 110 and the lower plate 130 are arranged opposite to each other. The two ends of the support rod 120 are respectively connected to the upper plate 110 and the lower plate 130. The left downward pressure drive assembly 210, the right downward pressure drive assembly 220, and the downward pressure drive motor 230 are all connected to the side of the upper plate 110 near the lower plate 130. The carrier plate support assembly 400 and the lower connecting assembly 500 are both connected to the side of the lower plate 130 near the upper plate 110.

[0047] The preferred embodiment of this application improves the stability of the main support 100 by setting four support rods 120 at the four corners of the upper plate 110 and the lower plate 130 respectively.

[0048] Figure 3 This is a schematic diagram of a down-pressure drive component according to an embodiment of this application, in conjunction with... Figures 2-3 As shown, the left downward pressure drive assembly 210 includes a left L-shaped plate 211, a left slide rail 212, a left vertical screw 213, a left U-shaped slider 214, and a left limiting fixing plate 215.

[0049] The top of the left L-shaped plate 211 is connected to the upper plate 110. The left slide rail 212 is disposed on the L-shaped plate, and the length direction of the left slide rail 212 is vertical. The inner wall of the left U-shaped slider 214 is slidably connected to the left slide rail 212. The left limiting fixing plate 215 is connected to the left U-shaped slider 214. The top end of the left vertical screw 213 passes through the upper plate 110, and the bottom end passes through the left U-shaped slider 214 and is threadedly connected to the L-shaped plate. The left vertical screw 213 is threadedly connected to the left U-shaped slider 214. The rotation of the left vertical screw 213 drives the left U-shaped slider 214 to move up and down, which in turn drives the left limiting fixing plate 215 to move up and down.

[0050] The right downward pressure drive assembly 220 includes a right L-shaped plate 221, a right slide rail 222, a right vertical screw 223, a right U-shaped slider 224, and a right limiting and fixing plate 225.

[0051] The top of the right L-shaped plate 221 is connected to the upper plate 110. The right slide rail 222 is disposed on the L-shaped plate, and the length direction of the right slide rail 222 is vertical. The inner wall of the right U-shaped slider 224 is slidably connected to the right slide rail 222. The right limiting fixing plate 225 is connected to the right U-shaped slider 224. The top end of the right vertical screw 223 passes through the upper plate 110, and the bottom end passes through the right U-shaped slider 224 and is connected to the L-shaped plate. The right vertical screw 223 is threadedly connected to the right U-shaped slider 224. The rotation of the right vertical screw 223 drives the right U-shaped slider 224 to move up and down, which in turn drives the right limiting fixing plate 225 to move up and down.

[0052] The left and right sides of the upper connecting component 300 are respectively connected to the left limiting fixing plate 215 and the right limiting fixing plate 225. Thus, the rotation of the left vertical screw 213 drives the left U-shaped slider 214 to move up and down, which in turn drives the left limiting fixing plate 215 to move up and down. The rotation of the right vertical screw 223 drives the right U-shaped slider 224 to move up and down, which in turn drives the right limiting fixing plate 225 to move up and down.

[0053] For example, the left vertical screw 213 and the right vertical screw 223 rotate clockwise simultaneously, the left U-shaped slider 214 slides downward, causing the left limiting fixing plate 215 to move downward, and the right U-shaped slider 224 also slides downward, causing the right limiting fixing plate 225 to move downward, thereby driving the upper connecting component 300 to move downward.

[0054] This application drives the upper connecting assembly 300 to move up and down by using a left vertical screw 213 threadedly connected to the left U-shaped slider 214, and a right vertical screw 223 threadedly connected to the right U-shaped slider 224. In this way, the left U-shaped slider 214 and the right U-shaped slider 224 can support the heavier upper connecting assembly 300 without causing the upper connecting assembly 300 to suddenly fall, and the distance of the upper connecting assembly 300's up and down movement can be controlled more precisely.

[0055] The downward drive assembly 200 also includes a timing belt 240. A gear 250 is provided at the top end of the left vertical screw 213 and the top end of the right vertical screw 223. The timing belt 240 meshes with the gear 250 at the top end of the left vertical screw 213, the gear 250 at the top end of the right vertical screw 223, and the output end of the downward drive motor 230. The downward drive motor 230 drives the left vertical screw 213 and the right vertical screw 223 to rotate synchronously forward or in reverse through the timing belt 240.

[0056] This application employs a downward drive motor 230 to drive the rotation of the synchronous belt 240, causing the left vertical screw 213 and the right vertical screw 223 to rotate together. This ensures that the right limiting fixing plate 225 and the left limiting fixing plate 215 move up and down synchronously, providing a balanced downward pressure to the upper connecting assembly 300.

[0057] Figure 4 This is a schematic diagram of a carrier plate support assembly according to an embodiment of this application, in conjunction with... Figure 4 As shown, the carrier plate support assembly 400 includes a front crossbar 410, a rear crossbar 420, and four elastic couplings 430. The two ends of the front crossbar 410 are respectively connected to the lower plate body 130 through two of the elastic couplings 430, and the two ends of the rear crossbar 420 are respectively connected to the lower plate body 130 through the other two elastic couplings 430.

[0058] The elastic assembly 430 includes a lower slider 431, a connecting post 432, a return spring 433, an upper block 434, and a crossbar connecting block 435. The lower slider 431 is disposed on the lower plate 130. The crossbar connecting block 435 is located between the lower slider 431 and the upper block 434. The bottom end of the connecting post 432 is connected to the side of the lower slider 431 away from the lower plate 130, and the top end passes through the crossbar connecting block 435 and is connected to the upper block 434. The return spring 433 is sleeved on the connecting post 432, and the two ends of the return spring 433 abut against the lower slider 431 and the crossbar connecting block 435, respectively.

[0059] The front crossbar 410 is connected to the crossbar connecting blocks 435 of the two elastic components 430 respectively, and the rear crossbar 420 is connected to the crossbar connecting blocks 435 of the other two elastic components 430 respectively; the two sides of the product carrier plate 710 are respectively placed on the front crossbar 410 and the rear crossbar 420.

[0060] When the upper connecting assembly 300 moves downward and presses down on the product carrier plate 710 and the carrier plate support assembly 400, the front crossbar 410 and the rear crossbar 420 drive the crossbar connecting block 435 to press down on the return spring 433. The front crossbar 410, the rear crossbar 420, the crossbar connecting block 435, and the product carrier plate 710 move downward together. When the upper connecting assembly 300 moves upward, the return spring 433 resets, and the front crossbar 410, the rear crossbar 420, the crossbar connecting block 435, and the product carrier plate 710 move upward together.

[0061] The connecting post 432 serves to prevent the horizontal bar connecting block 435 from shifting in direction, which could cause misalignment between the upper connecting assembly 300 and the circuit board 720 to be tested on the product carrier 710.

[0062] Furthermore, by providing elastic couplings 430 at both ends of the front crossbar 410, this application can ensure that the front crossbar 410 can move horizontally up and down, and by providing elastic couplings 430 at both ends of the rear crossbar 420, it can ensure that the rear crossbar 420 can move horizontally up and down, thus ensuring the stability of the product carrier plate 710.

[0063] The carrier plate support assembly 400 further includes a slide rail 440 and a horizontal screw assembly 450. Both the slide rail 440 and the horizontal screw assembly 450 are disposed on the lower plate 130. The lower slider 431 of the elastic assembly 430 connected to the rear crossbar 420 is slidably connected to the slide rail 440. The lower slider 431 of the elastic assembly 430 connected to the rear crossbar 420 is threadedly connected to the horizontal screw assembly 450. The horizontal screw assembly 450 drives the lower slider 431 to slide on the slide rail 440 to adjust the distance between the front crossbar 410 and the rear crossbar 420.

[0064] The rotation of the horizontal screw assembly 450 causes the lower slider 431 of the elastic assembly 430 connected to the rear crossbar 420 to slide on the slide rail 440, thereby adjusting the distance between the front crossbar 410 and the rear crossbar 420 to accommodate product carrier boards 710 of different sizes, thereby improving the adaptability of the horizontally pressable circuit board testing device 30.

[0065] Figure 5 This is a schematic diagram of an upper connecting component and a lower connecting component according to an embodiment of this application, in conjunction with... Figure 5As shown, in order to avoid hard contact between the upper connecting assembly 300 and the carrier plate support assembly 400, this application also provides a buffer assembly 320. The upper connecting assembly 300 includes an upper connecting main plate 310, multiple sets of communication connecting pins 610 and buffer assembly 320. The two sides of the upper connecting main plate 310 are respectively connected to the left limiting fixing plate 215 and the right limiting fixing plate 225. The multiple sets of communication connecting pins 610 are located on the side of the upper connecting main plate 310 away from the upper plate body 110. One end of the buffer assembly 320 is located on the side of the upper connecting main plate 310 away from the upper plate body 110, and the other end is used for the front crossbar 410 or the rear crossbar 420 to abut.

[0066] The lower connection assembly 500 includes a lower connection main plate 510 and multiple sets of communication connection pins 610. The lower connection main plate 510 is connected to the side of the lower plate 130 near the upper plate 110. The multiple sets of communication connection pins 610 are disposed on the side of the lower connection main plate 510 away from the lower plate 130. The communication connection pins 610 on the upper connection main plate 310 and the communication connection pins 610 on the lower connection main plate 510 are respectively used to connect to the test points on the front and back sides of the circuit board 720 to be tested.

[0067] This application provides multiple sets of communication connection pins 610 on the upper connection main plate 310 of the upper connection component 300 and multiple sets of communication connection pins 610 on the lower connection main plate 510 of the lower connection component 500, thereby enabling simultaneous testing of multiple circuit boards 720 to be tested, thus further improving testing efficiency.

[0068] Specifically, the number of buffer assemblies 320 includes four, and the four buffer assemblies 320 are respectively located at the four corners of the upper connecting main body plate 310; the two buffer assemblies 320 on the front side are used to abut against the front crossbar 410, and the two buffer assemblies 320 on the rear side are used to abut against the rear crossbar 420.

[0069] The buffer assembly 320 includes a fixing part 321, a buffer spring 322, and an abutment part 323. One end of the fixing part 321 is connected to the side of the upper connecting main plate 310 near the lower plate 130. The abutment part 323 is connected to the fixing part 321 through a vertical slide rod 324. The abutment part 323 can move up and down relative to the fixing part 321. The two ends of the buffer spring 322 are connected to the fixing part 321 and the abutment part 323, respectively.

[0070] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0071] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A circuit board testing device capable of horizontal pressure, characterized in that, The device includes a main support frame, a downward pressure drive assembly, an upper connecting assembly, a carrier plate support assembly, and a lower connecting assembly. The downward pressure drive assembly is connected to the main support frame, and the upper connecting assembly is connected to the downward pressure drive assembly, which drives the upper connecting assembly to move up and down. The carrier plate support assembly is connected to the main support frame and is used to place a product carrier plate, which is used to place a circuit board to be tested. The lower connecting assembly is connected to the main support frame and is located below the upper connecting assembly. The carrier plate support assembly is located between the upper connecting assembly and the lower connecting assembly. The downward pressure drive assembly includes a left downward pressure drive assembly, a right downward pressure drive assembly, and a downward pressure drive motor. The left downward pressure drive assembly, the right downward pressure drive assembly, and the downward pressure drive motor are all connected to the main support. The downward pressure drive motor simultaneously drives the left downward pressure drive assembly and the right downward pressure drive assembly to work. The left and right sides of the upper connecting component are respectively connected to the left lower pressing drive component and the right lower pressing drive component. The left lower pressing drive component and the right lower pressing drive component synchronously drive the upper connecting component to press down horizontally and press down on the product carrier board, so that the communication connection pins on the upper connecting component and the communication connection pins on the lower connecting component are respectively connected to the test points on the front and back sides of the circuit board to be tested on the product carrier board.

2. The circuit board testing device capable of horizontal pressure reduction according to claim 1, characterized in that, The main support includes an upper plate, a support rod, and a lower plate. The upper plate and the lower plate are arranged opposite to each other. The two ends of the support rod are respectively connected to the upper plate and the lower plate. The left lower pressure drive assembly, the right lower pressure drive assembly, and the lower pressure drive motor are all connected to the side of the upper plate near the lower plate. The carrier plate support assembly and the lower connection assembly are both connected to the side of the lower plate near the upper plate.

3. The circuit board testing device capable of horizontal pressure as described in claim 2, characterized in that, The left downward pressure drive assembly includes a left L-shaped plate, a left slide rail, a left vertical screw, a left U-shaped slider, and a left limiting and fixing plate; The top of the left L-shaped plate is connected to the upper plate. The left slide rail is set on the L-shaped plate, and the length direction of the left slide rail is vertical. The inner wall of the left U-shaped slider is slidably connected to the left slide rail. The left limiting fixing plate is connected to the left U-shaped slider. The top end of the left vertical screw passes through the upper plate, and the bottom end passes through the left U-shaped slider and is threadedly connected to the L-shaped plate. The left vertical screw is threadedly connected to the left U-shaped slider. The rotation of the left vertical screw drives the left U-shaped slider to move up and down, and drives the left limiting fixing plate to move up and down. The right downward pressure drive assembly includes a right L-shaped plate, a right slide rail, a right vertical screw, a right U-shaped slider, and a right limiting and fixing plate; The top of the right L-shaped plate is connected to the upper plate. The right slide rail is set on the L-shaped plate, and the length direction of the right slide rail is vertical. The inner wall of the right U-shaped slider is slidably connected to the right slide rail. The right limiting fixing plate is connected to the right U-shaped slider. The top end of the right vertical screw passes through the upper plate, and the bottom end passes through the right U-shaped slider and is connected to the L-shaped plate. The right vertical screw is threadedly connected to the right U-shaped slider. The rotation of the right vertical screw drives the right U-shaped slider to move up and down, and drives the right limiting fixing plate to move up and down. The left and right sides of the upper connecting component are respectively connected to the left limiting fixing plate and the right limiting fixing plate.

4. The circuit board testing device capable of horizontal pressure reduction according to claim 3, characterized in that, The downward drive assembly also includes a timing belt. A gear is provided at the top end of the left vertical screw and a gear is provided at the top end of the right vertical screw. The timing belt meshes with the gears at the top ends of the left and right vertical screws and the output end of the downward drive motor. The downward drive motor drives the left and right vertical screws to rotate synchronously forward or in reverse through the timing belt.

5. The circuit board testing device capable of horizontal pressure reduction according to claim 3, characterized in that, The carrier plate support assembly includes a front crossbar, a rear crossbar, and four elastic couplings. The two ends of the front crossbar are respectively connected to the lower plate body through two of the elastic couplings, and the two ends of the rear crossbar are respectively connected to the lower plate body through the other two elastic couplings. The elastic assembly includes a lower slider, a connecting post, a return spring, an upper block, and a crossbar connecting block. The lower slider is disposed on the lower plate. The crossbar connecting block is located between the lower slider and the upper block. The bottom end of the connecting post is connected to the side of the lower slider away from the lower plate, and the top end passes through the crossbar connecting block and is connected to the upper block. The return spring is sleeved on the connecting post, and both ends of the return spring abut against the lower slider and the crossbar connecting block, respectively. The front crossbar is connected to the crossbar connecting blocks of the two elastic components respectively, and the rear crossbar is connected to the crossbar connecting blocks of the other two elastic components respectively; the two sides of the product carrier plate are respectively placed on the front crossbar and the rear crossbar.

6. The circuit board testing device capable of horizontal pressure reduction according to claim 5, characterized in that, The carrier plate support assembly further includes a slide rail and a horizontal screw assembly. Both the slide rail and the horizontal screw assembly are disposed on the lower plate. The lower slider of the elastic assembly connected to the rear crossbar is slidably connected to the slide rail. The lower slider of the elastic assembly connected to the rear crossbar is threadedly connected to the horizontal screw assembly. The horizontal screw assembly drives the lower slider to slide on the slide rail to adjust the distance between the front crossbar and the rear crossbar.

7. The circuit board testing device capable of horizontal pressure reduction according to claim 5, characterized in that, The upper connecting assembly includes an upper connecting main plate, multiple sets of communication connecting pins, and a buffer assembly. The two sides of the upper connecting main plate are respectively connected to the left limiting fixing plate and the right limiting fixing plate. The multiple sets of communication connecting pins are located on the side of the upper connecting main plate away from the upper plate body. One end of the buffer assembly is located on the side of the upper connecting main plate away from the upper plate body, and the other end is used for the front crossbar or the rear crossbar to abut. The lower connection assembly includes a lower connection main plate and multiple sets of communication connection pins. The lower connection main plate is connected to the side of the lower plate body close to the upper plate body. The multiple sets of communication connection pins are located on the side of the lower connection main plate away from the lower plate body. The communication connection pins on the upper connection main plate and the communication connection pins on the lower connection main plate are respectively used to connect to the test points on the front and back sides of the circuit board to be tested.

8. The circuit board testing device capable of horizontal pressure reduction according to claim 7, characterized in that, The number of the buffer assembly includes four, and the four buffer assemblies are respectively located at the four corners of the upper connecting main body plate; The buffer assembly includes a fixing part, a buffer spring, and a stop part. One end of the fixing part is connected to the side of the upper connecting main plate near the lower plate. The stop part is connected to the fixing part through a vertical slide rod. The stop part can move up and down relative to the fixing part. The two ends of the buffer spring are connected to the fixing part and the stop part, respectively.

9. A circuit board testing device, characterized in that, The circuit board testing equipment includes a control host and a horizontally depressable circuit board testing device as described in any one of claims 1-8, wherein the control host is connected to the horizontally depressable circuit board testing device and is used to drive the horizontally depressable circuit board testing device to work.

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