CN223784440U - A circuit board testing device and equipment capable of horizontal pressure. - Google Patents

Abstract

The application discloses a circuit board testing device and equipment capable of being horizontally pressed down, and relates to the technical field of testing; the left side and the right side of the upper connecting component are respectively connected with the left pressing driving component and the right pressing driving component, the left pressing driving component and the right pressing driving component synchronously drive the upper connecting component to horizontally press down the product carrier plate, and the communication connecting pins on the upper connecting component and the communication connecting pins on the lower connecting component are respectively connected with test points on the front side and the back side 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 phenomenon that the circuit board to be detected is damaged due to the fact that the product carrier board is warped is avoided.

Description

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

Technical Field

The application relates to the technical field of testing, in particular to a circuit board testing device and equipment capable of being horizontally pressed down.

Background

With the rapid development of electronic technology, the integration level and yield of circuit boards are continuously improved, which puts higher demands on the quality and performance of circuit boards, and the circuit board defect detection technology is a very critical technology in the electronic industry, so that the performance test of circuit boards is particularly important in order to ensure the performance and reliability of electronic products.

At present, the traditional manual detection method has low efficiency, and is easy to cause misoperation, so that the detection stability is low.

Disclosure of utility model

The application aims to provide a circuit board testing device and equipment capable of being horizontally pressed, which can improve the detection efficiency and the detection stability and avoid the condition that a product carrier board is warped to cause damage of the circuit board to be detected.

The application discloses a circuit board testing device capable of horizontally pressing down, which comprises a main body support, a pressing driving assembly, an upper connecting assembly, a carrier plate supporting assembly and a lower connecting assembly, wherein the pressing driving assembly is connected with the main body support, the upper connecting assembly is connected with the pressing driving assembly, the pressing driving assembly drives the upper connecting assembly to move up and down, the carrier plate supporting assembly is connected with the main body support, the carrier plate supporting assembly is used for placing a product carrier plate, the product carrier plate is used for placing a circuit board to be tested, the lower connecting assembly is connected with the main body support, the lower connecting assembly is positioned below the upper connecting assembly, and the carrier plate supporting assembly is positioned between the upper connecting assembly and the lower connecting assembly;

The pressing driving assembly comprises a left pressing driving assembly, a right pressing driving assembly and a pressing driving motor, wherein the left pressing driving assembly, the right pressing driving assembly and the pressing driving motor are connected with the main body support, and the pressing driving motor drives the left pressing driving assembly and the right pressing driving assembly to work simultaneously;

The left side and the right side of the upper connecting component are respectively connected with the left pressing driving component and the right pressing driving component, the left pressing driving component and the right pressing driving component synchronously drive the upper connecting component to horizontally press down and press down the product carrier plate, so that the communication connecting pins on the upper connecting component and the communication connecting pins on the lower connecting component are respectively connected with the test points on the front surface and the back surface of the circuit board to be detected on the product carrier plate.

Optionally, the main part support includes upper plate body, bracing piece and lower plate body, the upper plate body with lower plate body sets up relatively, the both ends of bracing piece respectively with the upper plate body with lower plate body connects, left side pushes down drive assembly right side pushes down drive assembly with push down driving motor all with the upper plate body is close to one side of lower plate body is connected, support plate support assembly with lower coupling assembling all with lower plate body is close to one side of upper plate body is connected.

Optionally, the left pressing driving assembly comprises a left L-shaped plate, a left sliding rail, a left vertical screw, a left U-shaped sliding block and a left limiting fixed plate;

The top of the left L-shaped plate is connected with the upper plate body, the left sliding rail is arranged on the L-shaped plate, the length direction of the left sliding rail is vertical, the inner wall of the left U-shaped sliding block is in sliding connection with the left sliding rail, the left limiting fixed plate is connected with the left U-shaped sliding block, the top end of the left vertical screw rod penetrates through the upper plate body, the bottom end of the left vertical screw rod penetrates through the left U-shaped sliding block in threaded connection with the L-shaped plate, the left vertical screw rod is in threaded connection with the left U-shaped sliding block, and the left vertical screw rod rotates to drive the left U-shaped sliding block to move up and down to drive the left limiting fixed plate to move up and down;

The right pressing driving assembly comprises a right L-shaped plate, a right sliding rail, a right vertical screw, a right U-shaped sliding block and a right limiting fixed plate;

The top of the right L-shaped plate is connected with the upper plate body, the right sliding rail is arranged on the L-shaped plate, the length direction of the right sliding rail is vertical, the inner wall of the right U-shaped slide block is in sliding connection with the right sliding rail, the right limiting fixed plate is connected with the right U-shaped slide block, the top end of the right vertical screw rod penetrates through the upper plate body, the bottom end of the right vertical screw rod penetrates through the right U-shaped slide block and is connected with the L-shaped plate, the right vertical screw rod is in threaded connection with the right U-shaped slide block, and the right vertical screw rod rotates to drive the right U-shaped slide block to move up and down to drive the right limiting fixed plate to move up and down;

the left side and the right side of the upper connecting component are respectively connected with the left limiting and fixing plate and the right limiting and fixing plate.

Optionally, the pushing driving assembly further comprises a synchronous belt, a gear is arranged at the top end of the left vertical screw rod, a gear is arranged at the top end of the right vertical screw rod, the synchronous belt is meshed with the gear at the top end of the left vertical screw rod, the gear at the top end of the right vertical screw rod and the output end of the pushing driving motor, and the pushing driving motor drives the left vertical screw rod and the right vertical screw rod to synchronously rotate forwards or reversely through the synchronous belt.

Optionally, the carrier plate supporting component comprises a front cross rod, a rear cross rod and four elastic closing members, wherein two ends of the front cross rod are respectively connected with the lower plate body through two elastic closing members, and two ends of the rear cross rod are respectively connected with the lower plate body through other two elastic closing members;

The elastic closing piece comprises a lower sliding block, a connecting column, a reset spring, an upper jacking block and a cross rod connecting block, wherein the lower sliding block is arranged on the lower plate body, the cross rod connecting block is positioned between the lower sliding block and the upper jacking block, the bottom end of the connecting column is connected with one side, deviating from the lower plate body, of the lower sliding block, the top end penetrates through the cross rod connecting block and is connected with the upper jacking block, the reset spring is sleeved on the connecting column, and two ends of the reset spring are respectively abutted with the lower sliding block and the cross rod connecting block;

The front cross rod is connected with the cross rod connecting blocks of the two elastic closing pieces respectively, the rear cross rod is connected with the cross rod connecting blocks of the other two elastic closing pieces respectively, and two sides of the product carrier plate are respectively erected on the front cross rod and the rear cross rod.

Optionally, the support assembly of the carrier plate further includes a sliding rail and a horizontal screw rod assembly, the sliding rail and the horizontal screw rod assembly are both arranged on the lower plate body, the lower slider of the elastic assembly connected with the rear cross rod is in sliding connection with the sliding rail, the lower slider of the elastic assembly connected with the rear cross rod is in threaded connection with the horizontal screw rod assembly, and the horizontal screw rod assembly drives the lower slider to slide on the sliding rail so as to adjust the distance between the front cross rod and the rear cross rod.

Optionally, the upper connecting assembly includes an upper connecting main body plate, a plurality of groups of communication connection pins and a buffer assembly, wherein two sides of the upper connecting main body plate are respectively connected with the left limit fixing plate and the right limit fixing plate, the plurality of groups of communication connection pins are arranged at one side of the upper connecting main body plate, which is away from the upper plate body, one end of the buffer assembly is arranged at one side of the upper connecting main body plate, which is away from the upper plate body, and the other end of the buffer assembly is used for abutting the front cross rod or the rear cross rod;

The lower connecting assembly comprises a lower connecting main body plate and a plurality of groups of communication connecting pins, wherein the lower connecting main body plate is connected with one side, close to the upper plate body, of the lower plate body, the communication connecting pins are arranged on one side, deviating from the lower plate body, of the lower connecting main body plate, and the communication connecting pins on the upper connecting main body plate and the communication connecting pins on the lower connecting main body plate are respectively used for being connected with test points on the front side and the back side of a circuit board to be detected.

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

the buffer assembly comprises a fixing part, a buffer spring and an abutting part, wherein one end of the fixing part is connected with one side, close to the lower plate body, of the upper connecting main body plate, the abutting part is connected with the fixing part through a vertical sliding rod, the abutting part can move up and down relative to the fixing part, and two ends of the buffer spring are respectively connected with the fixing part and the abutting part.

The application also discloses a circuit board testing device, which comprises a control host and a circuit board testing device capable of being horizontally pressed down, wherein the control host is connected with the circuit board testing device capable of being horizontally pressed down and is used for driving the circuit board testing device capable of being horizontally pressed down to work.

Compared with the prior art that the circuit board to be detected is detected manually, the circuit board to be detected is detected by adopting the circuit board testing device capable of horizontally pressing down, so that the detection efficiency can be improved, the situation that the detection fails due to instability caused by manual work can be avoided, the left pressing down driving assembly and the right pressing down driving assembly are simultaneously arranged to simultaneously press down the upper connecting assembly from two sides, the product carrier warp caused by only one pressing down driving assembly can be avoided, the situation that the circuit board to be detected falls from the product carrier and is damaged can be avoided, and the reliability of the device is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art. In the drawings:

FIG. 1 is a schematic diagram of a circuit board testing apparatus according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a circuit board testing device capable of being horizontally pressed down according to an embodiment of the application;

FIG. 3 is a schematic view of a push-down drive assembly according to an embodiment of the present application;

FIG. 4 is a schematic view of a carrier support assembly according to an embodiment of the application;

Fig. 5 is a schematic view of an upper and lower connection assembly according to an embodiment of the present application.

10, Circuit board test equipment; the device comprises a control host, a circuit board testing device capable of being horizontally pressed down, a main body bracket, 110, an upper plate body, 120, a supporting rod, 130, a lower plate body, 200, a lower driving assembly, 210, a left lower driving assembly, 211, a left L-shaped plate, 212, a left sliding rail, 213, a left vertical screw rod, 214, a left U-shaped sliding block, 215, a left limiting fixed plate, 220, a right lower driving assembly, 221, a right L-shaped plate, 222, a right sliding rail, 223, a right vertical screw rod, 224, a right U-shaped sliding block, 225, a right limiting fixed plate, 230, a lower driving motor, 240, a synchronous belt, 250, a gear, 300, an upper connecting assembly, 310, an upper connecting main body plate, 320, a buffer closing member, 321, a fixing part, 322, a buffer spring, 323, an abutting part, 324, a vertical sliding rod, 400, a carrier plate supporting assembly, 410, a front cross rod, 420, a rear cross rod, 430, an elastic closing member, 431, a lower sliding block, 432, a connecting column, 433, a reset spring, an upper top block, 435, a cross rod, a 450, a cross rod, a 440, a sliding rail, a horizontal closing member, a horizontal connecting plate, a 720, a connecting pin, a circuit board, a connecting plate, a signal to be tested, a product, a main body, a connecting plate, a wire, a 610, a connecting plate to be tested, and a product.

Detailed Description

It is to be understood that the terminology used herein, the specific structural and functional details disclosed are merely representative for the purpose of describing particular embodiments, but that the application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or implicitly indicating the number of technical features indicated. Thus, unless otherwise indicated, features defining "a first", "a second", and "a plurality" may include one or more of such features explicitly or implicitly, and "a plurality" means two or more. The terms "comprises," "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or groups thereof may be present or added.

In addition, terms of the azimuth or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are described based on the azimuth or relative positional relationship shown in the drawings, are merely for convenience of description of the present application, and do not indicate that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application.

Furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be either permanently connected, removably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

The application is described in detail below with reference to the attached drawings and alternative embodiments.

Fig. 1 is a schematic diagram of a circuit board testing device according to an embodiment of the present application, and as shown in fig. 1, the present application discloses a circuit board testing device 10, where the circuit board testing device 10 includes a control host 20 and a circuit board testing device 30 capable of being horizontally pressed down, and the control host 20 is connected to the circuit board testing device 30 capable of being horizontally pressed down, and is used for driving the circuit board testing device 30 capable of being horizontally pressed down to work.

The control host 20 may comprise a computer host, and the application is mainly improved with respect to the circuit board testing device 30 capable of being horizontally pressed down, so as to be applicable to the circuit board testing device 10, and the specific improvements are as follows:

Fig. 2 is a schematic view of a circuit board testing device capable of being horizontally pressed down according to an embodiment of the present application, and as shown in fig. 2, the circuit board testing device 30 capable of being horizontally pressed down includes a main body support 100, a pressing driving assembly 200, an upper connecting assembly 300, a carrier support assembly 400 and a lower connecting assembly 500, wherein the pressing driving assembly 200 is connected to the main body support 100, the upper connecting assembly 300 is connected to the pressing driving assembly 200, the pressing driving assembly 200 drives the upper connecting assembly 300 to move up and down, the carrier support assembly 400 is connected to the main body support 100, the carrier support assembly 400 is used for placing a product carrier 710, the product carrier 710 is used for placing a circuit board 720 to be tested, the lower connecting assembly 500 is connected to the main body support 100, the lower connecting assembly 500 is located below the upper connecting assembly 300, and the carrier support assembly 400 is located between the upper connecting assembly 300 and the lower connecting assembly 500.

The push-down driving assembly 200 includes a left push-down driving assembly 210, a right push-down driving assembly 220 and a push-down driving motor 230, wherein the left push-down driving assembly 210, the right push-down driving assembly 220 and the push-down driving motor 230 are all connected with the main body support 100, and the push-down driving motor 230 drives the left push-down driving assembly 210 and the right push-down driving assembly 220 to work simultaneously.

The left and right sides of the upper connection assembly 300 are respectively connected with the left pressing driving assembly 210 and the right pressing driving assembly 220, and the left pressing driving assembly 210 and the right pressing driving assembly 220 synchronously move the upper connection assembly 300 to horizontally press down and press down the product carrier 710, so that the communication connection pins 610 on the upper connection assembly 300 and the communication connection pins 610 on the lower connection assembly 500 are respectively connected with the test points on the front and back sides of the circuit board 720 to be tested on the product carrier 710.

For example, when the circuit board 720 to be tested needs to be tested, the circuit board 720 to be tested is placed on the product carrier 710, then the product carrier 710 is placed on the carrier support assembly 400, then the upper connection assembly 300 is pressed down by the pressing driving assembly 200, so that the upper connection assembly 300 is abutted to the carrier support assembly 400, the communication connection pins 610 on the upper connection assembly 300 are in contact with the test points on the front surface of the circuit board 720 to be tested, and the carrier support assembly 400 is pressed down to drive the product carrier 710 to move downwards together, so that the communication connection pins 610 on the lower connection assembly 500 are in contact with the test points on the back surface of the circuit board 720 to be tested, and the upper connection assembly 300 and the lower connection assembly 500 are in communication connection, and the lower connection assembly 500 is in communication connection with the main body support 100, so that the test data transmission and acquisition of the circuit board 720 to be tested are performed through the upper connection assembly 300 and the lower connection assembly 500, so that the test work of the circuit board 720 to be tested is completed.

In addition, a plurality of circuit boards 720 to be tested may be placed on one product carrier 710, and in the exemplary product carrier 710 of the present application, 28 circuit boards 720 to be tested are placed on the product carrier 710, and correspondingly, 28 sets of communication connection pins 610 are also disposed on the upper connection assembly 300 and the lower connection assembly 500, so as to test 28 circuit boards 720 to be tested simultaneously.

Compared with the existing scheme of manually detecting the circuit board 720 to be detected, the circuit board 720 to be detected is detected by adopting the circuit board testing device 30 which can be horizontally pressed down, so that the detection efficiency can be improved, and the condition of detection failure caused by instability due to manual work can be avoided.

In addition, the left pressing driving assembly 210 and the right pressing driving assembly 220 are arranged simultaneously to press the upper connecting assembly 300 from two sides simultaneously, so that the condition that only one pressing driving assembly 200 causes the product carrier plate 710 to warp and the circuit board 720 to be detected falls off the product carrier plate 710 to be damaged can be avoided, and the reliability of the device is improved.

The main body support 100 includes an upper plate body 110, a support rod 120 and a lower plate body 130, the upper plate body 110 and the lower plate body 130 are oppositely disposed, two ends of the support rod 120 are respectively connected with the upper plate body 110 and the lower plate body 130, the left pressing driving assembly 210, the right pressing driving assembly 220 and the pressing driving motor 230 are connected with one side of the upper plate body 110 close to the lower plate body 130, and the carrier plate support assembly 400 and the lower connecting assembly 500 are connected with one side of the lower plate body 130 close to the upper plate body 110.

The preferred embodiment of the present application improves the stability of the main body support 100 by providing four support bars 120 at four corners of the upper and lower plate bodies 110 and 130, respectively.

Fig. 3 is a schematic view of a push-down driving assembly according to an embodiment of the present application, and in conjunction with fig. 2-3, the left push-down driving assembly 210 includes a left L-shaped plate 211, a left sliding rail 212, a left vertical screw 213, a left U-shaped slider 214, and a left limit fixing plate 215.

The top of left L-shaped plate 211 with upper plate body 110 is connected, left slide rail 212 sets up on the L-shaped plate, just left slide rail 212's length direction is vertical direction, left U-shaped slider 214's inner wall with left slide rail 212 sliding connection, left spacing fixed plate 215 with left U-shaped slider 214 is connected, the top of left vertical screw 213 runs through upper plate body 110, the bottom runs through left U-shaped slider 214 threaded connection with L-shaped plate is connected, just left vertical screw 213 with left U-shaped slider 214 threaded connection, left vertical screw 213 rotates and drives left U-shaped slider 214 up-and-down motion drives left spacing fixed plate 215 up-and-down motion.

The right push-down driving 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 limit fixing plate 225.

The top of right L template 221 with upper plate body 110 is connected, right slide rail 222 sets up on the L template, just right slide rail 222's length direction is vertical direction, right U type slider 224's inner wall with right slide rail 222 sliding connection, right spacing fixed plate 225 with right U type slider 224 is connected, right vertical screw 223's top runs through upper plate body 110, the bottom runs through right U type slider 224 with the L template is connected, just right vertical screw 223 with right U type slider 224 threaded connection, right vertical screw 223 rotates and drives right U type slider 224 up-and-down motion drives right spacing fixed plate 225 up-and-down motion.

The left and right sides of the upper connecting assembly 300 are respectively connected with the left limit fixing plate 215 and the right limit fixing plate 225, so that the left vertical screw 213 rotates to drive the left U-shaped slide block 214 to move up and down, drive the left limit fixing plate 215 to move up and down, and the right vertical screw 223 rotates to drive the right U-shaped slide block 224 to move up and down, and drive the right limit fixing plate 225 to move up and down.

Illustratively, the left vertical screw 213 and the right vertical screw 223 rotate forward at the same time, the left U-shaped slider 214 slides downward to drive the left limiting fixing plate 215 to move downward, and the right U-shaped slider 224 also slides downward to drive the right limiting fixing plate 225 to move downward, so as to drive the upper connecting assembly 300 to move downward.

The application drives the upper connecting assembly 300 to move up and down by adopting the mode that the left vertical screw 213 is in threaded connection with the left U-shaped slide block 214 and the right vertical screw 223 is in threaded connection with the right U-shaped slide block 224, so that the left U-shaped slide block 214 and the right U-shaped slide block 224 can bear the more heavy upper connecting assembly 300, the upper connecting assembly 300 cannot fall suddenly, and the distance for controlling the upper connecting assembly 300 to move up and down can be more accurate.

The pressing driving assembly 200 further includes a timing belt 240, a gear 250 is disposed at the top end of the left vertical screw 213, a gear 250 is disposed at the top end of the right vertical screw 223, the timing belt 240 engages 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 an output end of the pressing driving motor 230, and the pressing driving motor 230 drives the left vertical screw 213 and the right vertical screw 223 to rotate forward or reverse synchronously through the timing belt 240.

The application adopts the downward-pressing driving motor 230 to drive the synchronous belt 240 to rotate, so as to drive the left vertical screw 213 and the right vertical screw 223 to rotate together, thereby ensuring the right limit fixing plate 225 and the left limit fixing plate 215 to synchronously move up and down and giving balanced downward pressure to the upper connecting assembly 300.

Fig. 4 is a schematic diagram of a carrier support assembly according to an embodiment of the present application, and referring to fig. 4, the carrier support assembly 400 includes a front rail 410, a rear rail 420, and four elastic members 430, two ends of the front rail 410 are respectively connected to the lower plate 130 through two elastic members 430, and two ends of the rear rail 420 are respectively connected to the lower plate 130 through two other elastic members 430.

The elastic closing member 430 includes a lower slider 431, a connecting column 432, a return spring 433, an upper top block 434 and a cross bar connection block 435, the lower slider 431 is disposed on the lower plate 130, the cross bar connection block 435 is disposed between the lower slider 431 and the upper top block 434, the bottom end of the connecting column 432 and one side of the lower slider 431 away from the lower plate 130 are connected, the top end penetrates through the cross bar connection block 435 and the upper top block 434, the return spring 433 is sleeved on the connecting column 432, and two ends of the return spring 433 are respectively abutted to the lower slider 431 and the cross bar connection block 435.

The front rail 410 is respectively connected with the rail connecting blocks 435 of the two elastic closing members 430, the rear rail 420 is respectively connected with the rail connecting blocks 435 of the other two elastic closing members 430, and both sides of the product carrier 710 are respectively erected on the front rail 410 and the rear rail 420.

When the upper connecting assembly 300 moves downward and presses down the product carrier plate 710 and the carrier plate supporting assembly 400, the front cross bar 410 and the rear cross bar 420 drive the cross bar connection block 435 to press the return spring 433 downward, the front cross bar 410, the rear cross bar 420 and the cross bar connection block 435 move downward together with the product carrier plate 710, when the upper connecting assembly 300 moves upward, the return spring 433 is reset, and the front cross bar 410, the rear cross bar 420 and the cross bar connection block 435 move upward together with the product carrier plate 710.

The connection posts 432 serve to prevent the upper connection assembly 300 and the circuit board 720 to be tested on the product carrier 710 from being misaligned due to the displacement of the cross bar connection block 435 in the direction.

In addition, the elastic closing members 430 are arranged at two ends of the front cross bar 410 to ensure that the front cross bar 410 moves up and down horizontally, and the elastic closing members 430 are arranged at two ends of the rear cross bar 420 to ensure that the rear cross bar 420 moves up and down horizontally to ensure the stability of the product carrier plate 710.

The carrier support assembly 400 further includes a sliding rail 440 and a horizontal screw assembly 450, the sliding rail 440 and the horizontal screw assembly 450 are both disposed on the lower plate 130, the lower slider 431 of the elastic assembly 430 connected to the rear cross bar 420 is slidably connected to the sliding rail 440, the lower slider 431 of the elastic assembly 430 connected to the rear cross bar 420 is threadably connected to the horizontal screw assembly 450, and the horizontal screw assembly 450 drives the lower slider 431 to slide on the sliding rail 440 so as to adjust the distance between the front cross bar 410 and the rear cross bar 420.

The horizontal screw assembly 450 rotates to drive the lower slider 431 of the elastic assembly 430 connected to the rear rail 420 to slide on the sliding rail 440, so as to adjust the distance between the front rail 410 and the rear rail 420, so as to adapt to different sizes of product carrier boards 710, thereby improving the adaptability of the circuit board testing device 30 capable of being horizontally pressed down.

Fig. 5 is a schematic view of an upper connection assembly and a lower connection assembly according to an embodiment of the present application, and in combination with fig. 5, in order to avoid hard contact between the upper connection assembly 300 and the carrier support assembly 400, the present application further provides a buffer assembly 320, wherein the upper connection assembly 300 includes an upper connection body plate 310, a plurality of sets of communication connection pins 610 and a buffer assembly 320, two sides of the upper connection body plate 310 are respectively connected with the left limit fixing plate 215 and the right limit fixing plate 225, the plurality of sets of communication connection pins 610 are disposed at one side of the upper connection body plate 310 facing away from the upper plate 110, and one end of the buffer assembly 320 is disposed at one side of the upper connection body plate 310 facing away from the upper plate 110, and the other end is used for abutting against the front rail 410 or the rear rail 420.

The lower connection assembly 500 includes a lower connection body board 510 and a plurality of groups of communication connection pins 610, the lower connection body board 510 is connected with one side of the lower board body 130 close to the upper board body 110, a plurality of groups of communication connection pins 610 are disposed on one side of the lower connection body board 510 away from the lower board body 130, and the communication connection pins 610 on the upper connection body board 310 and the communication connection pins 610 on the lower connection body board 510 are respectively used for connection with test points on the front and back sides of the circuit board 720 to be tested.

In the present application, a plurality of circuit boards 720 to be tested can be tested simultaneously by providing a plurality of sets of communication connection pins 610 on the upper connection body board 310 of the upper connection assembly 300 and a plurality of sets of communication connection pins 610 on the lower connection body board 510 of the lower connection assembly 500, thereby further improving the test efficiency.

Specifically, the number of the buffer units 320 includes four, four buffer units 320 are respectively located at four corners of the upper connecting body plate 310, two buffer units 320 on the front side are used for abutting against the front cross bar 410, and two buffer units 320 on the rear side are used for abutting against the rear cross bar 420.

The buffer assembly 320 includes a fixing portion 321, a buffer spring 322, and an abutment portion 323, wherein one end of the fixing portion 321 is connected to one side of the upper connecting body plate 310, which is close to the lower plate 130, the abutment portion 323 is connected to the fixing portion 321 through a vertical sliding rod 324, the abutment portion 323 can move up and down relative to the fixing portion 321, and two ends of the buffer spring 322 are respectively connected to the fixing portion 321 and the abutment portion 323.

It should be noted that, the inventive concept of the present application can form a very large number of embodiments, but the application documents are limited in space and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features can be arbitrarily combined to form new embodiments, and after the embodiments or technical features are combined, the original technical effects will be enhanced.

The above description of the application in connection with specific alternative embodiments is further detailed and it is not intended that the application be limited to the specific embodiments disclosed. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the application, and these should be considered to be within the scope of the application.

Claims (9)

1. The circuit board testing device capable of being horizontally pressed down is characterized by comprising a main body support, a pressing driving assembly, an upper connecting assembly, a carrier board supporting assembly and a lower connecting assembly, wherein the pressing driving assembly is connected with the main body support, the upper connecting assembly is connected with the pressing driving assembly, the pressing driving assembly drives the upper connecting assembly to move up and down, the carrier board supporting assembly is connected with the main body support, the carrier board supporting assembly is used for placing a product carrier board, the product carrier board is used for placing a circuit board to be tested, the lower connecting assembly is connected with the main body support, the lower connecting assembly is positioned below the upper connecting assembly, and the carrier board supporting assembly is positioned between the upper connecting assembly and the lower connecting assembly;

The pressing driving assembly comprises a left pressing driving assembly, a right pressing driving assembly and a pressing driving motor, wherein the left pressing driving assembly, the right pressing driving assembly and the pressing driving motor are connected with the main body support, and the pressing driving motor drives the left pressing driving assembly and the right pressing driving assembly to work simultaneously;

The left side and the right side of the upper connecting component are respectively connected with the left pressing driving component and the right pressing driving component, the left pressing driving component and the right pressing driving component synchronously drive the upper connecting component to horizontally press down and press down the product carrier plate, so that the communication connecting pins on the upper connecting component and the communication connecting pins on the lower connecting component are respectively connected with the test points on the front surface and the back surface of the circuit board to be detected on the product carrier plate.

2. The device for testing a circuit board capable of being horizontally pressed down according to claim 1, wherein the main body support comprises an upper board body, a supporting rod and a lower board body, the upper board body and the lower board body are oppositely arranged, two ends of the supporting rod are respectively connected with the upper board body and the lower board body, the left pressing driving assembly, the right pressing driving assembly and the pressing driving motor are connected with one side, close to the lower board body, of the upper board body, and the carrier board supporting assembly and the lower connecting assembly are connected with one side, close to the upper board body, of the lower board body.

3. The device for testing a circuit board capable of being horizontally pressed down according to claim 2, wherein the left pressing down driving assembly comprises a left L-shaped plate, a left sliding rail, a left vertical screw, a left U-shaped sliding block and a left limiting fixing plate;

The top of the left L-shaped plate is connected with the upper plate body, the left sliding rail is arranged on the L-shaped plate, the length direction of the left sliding rail is vertical, the inner wall of the left U-shaped sliding block is in sliding connection with the left sliding rail, the left limiting fixed plate is connected with the left U-shaped sliding block, the top end of the left vertical screw rod penetrates through the upper plate body, the bottom end of the left vertical screw rod penetrates through the left U-shaped sliding block in threaded connection with the L-shaped plate, the left vertical screw rod is in threaded connection with the left U-shaped sliding block, and the left vertical screw rod rotates to drive the left U-shaped sliding block to move up and down to drive the left limiting fixed plate to move up and down;

The right pressing driving assembly comprises a right L-shaped plate, a right sliding rail, a right vertical screw, a right U-shaped sliding block and a right limiting fixed plate;

The top of the right L-shaped plate is connected with the upper plate body, the right sliding rail is arranged on the L-shaped plate, the length direction of the right sliding rail is vertical, the inner wall of the right U-shaped slide block is in sliding connection with the right sliding rail, the right limiting fixed plate is connected with the right U-shaped slide block, the top end of the right vertical screw rod penetrates through the upper plate body, the bottom end of the right vertical screw rod penetrates through the right U-shaped slide block and is connected with the L-shaped plate, the right vertical screw rod is in threaded connection with the right U-shaped slide block, and the right vertical screw rod rotates to drive the right U-shaped slide block to move up and down to drive the right limiting fixed plate to move up and down;

the left side and the right side of the upper connecting component are respectively connected with the left limiting and fixing plate and the right limiting and fixing plate.

4. The circuit board testing device capable of being horizontally pressed down according to claim 3, wherein the pressing down driving assembly further comprises a synchronous belt, a gear is arranged at the top end of the left vertical screw rod, a gear is arranged at the top end of the right vertical screw rod, the synchronous belt is meshed with the gear at the top end of the left vertical screw rod, the gear at the top end of the right vertical screw rod and the output end of the pressing down driving motor, and the pressing down driving motor drives the left vertical screw rod and the right vertical screw rod to synchronously rotate forward or reversely through the synchronous belt.

5. The device for testing a circuit board capable of being horizontally pressed down according to claim 3, wherein the carrier support assembly comprises a front cross bar, a rear cross bar and four elastic closing members, two ends of the front cross bar are respectively connected with the lower board body through two elastic closing members, and two ends of the rear cross bar are respectively connected with the lower board body through two other elastic closing members;

The elastic closing piece comprises a lower sliding block, a connecting column, a reset spring, an upper jacking block and a cross rod connecting block, wherein the lower sliding block is arranged on the lower plate body, the cross rod connecting block is positioned between the lower sliding block and the upper jacking block, the bottom end of the connecting column is connected with one side, deviating from the lower plate body, of the lower sliding block, the top end penetrates through the cross rod connecting block and is connected with the upper jacking block, the reset spring is sleeved on the connecting column, and two ends of the reset spring are respectively abutted with the lower sliding block and the cross rod connecting block;

The front cross rod is connected with the cross rod connecting blocks of the two elastic closing pieces respectively, the rear cross rod is connected with the cross rod connecting blocks of the other two elastic closing pieces respectively, and two sides of the product carrier plate are respectively erected on the front cross rod and the rear cross rod.

6. The device for testing a circuit board capable of being horizontally pressed down according to claim 5, wherein the carrier support assembly further comprises a sliding rail and a horizontal screw rod assembly, the sliding rail and the horizontal screw rod assembly are both arranged on the lower plate body, the lower slider of the elastic assembly connected with the rear cross rod is in sliding connection with the sliding rail, the lower slider of the elastic assembly connected with the rear cross rod is in threaded connection with the horizontal screw rod assembly, and the horizontal screw rod assembly drives the lower slider to slide on the sliding rail so as to adjust the distance between the front cross rod and the rear cross rod.

7. The device for testing a circuit board capable of being horizontally pressed down according to claim 5, wherein the upper connecting assembly comprises an upper connecting main body plate, a plurality of groups of communication connecting pins and a buffer assembly, two sides of the upper connecting main body plate are respectively connected with the left limit fixing plate and the right limit fixing plate, the plurality of groups of communication connecting pins are arranged on one side, away from the upper plate body, of the upper connecting main body plate, one end of the buffer assembly is arranged on one side, away from the upper plate body, of the upper connecting main body plate, and the other end of the buffer assembly is used for abutting against the front cross rod or the rear cross rod;

The lower connecting assembly comprises a lower connecting main body plate and a plurality of groups of communication connecting pins, wherein the lower connecting main body plate is connected with one side, close to the upper plate body, of the lower plate body, the communication connecting pins are arranged on one side, deviating from the lower plate body, of the lower connecting main body plate, and the communication connecting pins on the upper connecting main body plate and the communication connecting pins on the lower connecting main body plate are respectively used for being connected with test points on the front side and the back side of a circuit board to be detected.

8. The device according to claim 7, wherein the number of the buffer members includes four, and the four buffer members are respectively located at four corners of the upper connection body plate;

the buffer assembly comprises a fixing part, a buffer spring and an abutting part, wherein one end of the fixing part is connected with one side, close to the lower plate body, of the upper connecting main body plate, the abutting part is connected with the fixing part through a vertical sliding rod, the abutting part can move up and down relative to the fixing part, and two ends of the buffer spring are respectively connected with the fixing part and the abutting part.

9. A circuit board testing apparatus, characterized in that the circuit board testing apparatus comprises a control host and the circuit board testing device capable of being horizontally pressed down according to any one of claims 1 to 8, and the control host is connected with the circuit board testing device capable of being horizontally pressed down and is used for driving the circuit board testing device capable of being horizontally pressed down to work.