Circuit board detection equipment

Abstract

The utility model discloses circuit board detection equipment, which relates to the technical field of detection and comprises a conveying device provided with a detection station. The clamping and positioning device is used for clamping the circuit board at the detection station; the detection device comprises a linear driving assembly, a lifting driving assembly, a plurality of first probes, a plurality of second probes and a plurality of third probes, and the linear driving assembly can drive the plurality of first probes and the plurality of second probes to be close to the circuit board at the detection station; the lifting driving assembly is used for driving the plurality of third probes to move up and down, so that the plurality of first probes are respectively inserted into a plurality of input holes of an input component on the circuit board, the plurality of second probes are respectively inserted into a plurality of output holes of an output component on the circuit board, and the lifting driving assembly can drive the plurality of third probes to abut against pins of a plurality of electronic components on the circuit board. According to the circuit board detection equipment, the first probe, the second probe and the third probe can synchronously move in place, and the detection efficiency of the circuit board can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, and particularly relates to a circuit board detection device. Background Art

[0002] The circuit board is the core component of electronic products. Quality problems of the circuit board may lead to a decline in the performance of the entire electronic product or even a malfunction. To avoid malfunctions of the assembled electronic products, before installing the circuit board into the corresponding product housing, it is necessary to first detect the relevant performance of the circuit board to prevent the assembled electronic products from being scrapped due to circuit board failures. In the prior art, an operator holds a probe pen in a detection device and touches multiple electronic components on the circuit board in sequence to detect the connectivity, signal transmission performance, and output signal strength of the circuit board. This method of detecting the circuit board by the operator holding the probe pen is slow, reducing the detection efficiency of the circuit board. Summary of the Utility Model

[0003] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a circuit board detection device, which can improve the detection efficiency of the circuit board.

[0004] The circuit board detection device according to an embodiment of the utility model includes:

[0005] A conveying device, on which a detection station is provided. The conveying device is used to convey multiple circuit boards from back to front, so that the multiple circuit boards can move to the detection station in sequence;

[0006] A clamping and positioning device, which is arranged in the area of the conveying device corresponding to the detection station. The clamping and positioning device is used to clamp the circuit board at the detection station;

[0007] A detection device, which is arranged in the area of the conveying device corresponding to the detection station. The detection device is used to detect the performance of the circuit board. The detection device includes a linear driving component, a lifting driving component, multiple first probes, multiple second probes, and multiple third probes. The multiple first probes and the multiple second probes are linearly distributed in the up and down direction. The linear driving component can drive the multiple first probes and the multiple second probes to approach the circuit board at the detection station, so that the multiple first probes are respectively inserted into multiple input holes of input components on the circuit board, and the multiple second probes are respectively inserted into multiple output holes of output components on the circuit board. The lifting driving component can drive the multiple third probes to rise and approach the circuit board at the detection station, so that the multiple third probes abut against the pins of multiple electronic components on the circuit board.

[0008] At least has the following beneficial effects:

[0009] The conveying device conveys a plurality of circuit boards to be detected from back to front, so that the plurality of circuit boards to be detected can be sequentially moved to the detection station. A clamping and positioning device and a detection device are arranged in the area of the conveying device corresponding to the detection station. When the circuit board moves to the detection station, the clamping and positioning device clamps the circuit board at the detection station, so that the circuit board is fixed, avoiding shaking of the circuit board during the detection process. On the other hand, the clamping and positioning device also plays a positioning role, enabling the detection device to accurately detect the circuit board. After the clamping and positioning device clamps the circuit board, the lifting drive assembly in the detection device first drives a plurality of third probes to rise and approach the lower surface of the circuit board, so that the plurality of third probes respectively abut against the pins of a plurality of electronic components on the circuit board. Then the linear drive assembly drives the plurality of first probes and the plurality of second probes to approach the circuit board, so that the plurality of first probes are respectively inserted into a plurality of input holes of the input components on the circuit board, and the plurality of second probes are respectively inserted into a plurality of output holes of the output components on the circuit board. After the plurality of first probes, the plurality of second probes and the plurality of third probes move into place, the detection device can detect the performance of the circuit board, such as connectivity, signal transmission performance, and output signal strength, etc. After the circuit board at the detection station is detected, the clamping and positioning device releases the circuit board, and then the conveying device continues to convey a plurality of circuit boards from back to front, so that the detected circuit boards can be moved to the downstream processing equipment, and the next circuit board to be detected can be moved to the detection station. This circuit board detection device can make the plurality of first probes, the plurality of second probes and the plurality of third probes move into place synchronously, improving the detection speed of the circuit board, and thus being beneficial to improving the detection efficiency of the circuit board.

[0010] According to the circuit board detection device of an embodiment of the present invention, the conveying device includes two conveyor belt assemblies, both of the two conveyor belt assemblies are parallel to the front-back direction, and the two conveyor belt assemblies are respectively used to abut against the left and right ends of the circuit board, so that the two conveyor belt assemblies can drive the circuit board to move from back to front.

[0011] According to the circuit board detection device of an embodiment of the present invention, the clamping and positioning device includes a first clamping assembly and a second clamping assembly. The first clamping assembly is used to clamp the upper and lower ends of the circuit board at the detection station, and the second clamping assembly is used to clamp the front and rear ends of the circuit board at the detection station.

[0012] According to the circuit board detection device of the embodiment of the present invention, the first clamping assembly includes a first linear driving member, a second linear driving member, a pressing plate and a top plate. The pressing plate is arranged above the two conveyor belt assemblies. The top plate and the second linear driving member are both arranged below the two conveyor belt assemblies. The first linear driving member is used to drive the pressing plate to move in the up and down direction so that the pressing plate can press against the upper end of the circuit board. The second linear driving member is used to drive the top plate to move in the up and down direction so that the top plate can press against the lower surface of the circuit board and the pressing plate and the top plate can clamp the upper and lower ends of the circuit board.

[0013] According to the circuit board detection device of the embodiment of the present invention, a plurality of flexible blocks are arranged on the pressing plate, and the pressing plate presses against the upper end of the circuit board through the plurality of flexible blocks.

[0014] According to the circuit board detection device of the embodiment of the present invention, positioning grooves are formed in the flexible blocks, and the positioning grooves are used for the mounting plates on the circuit board to pass through.

[0015] According to the circuit board detection device of the embodiment of the present invention, a plurality of support blocks are arranged on the top plate, and positioning columns parallel to the up and down direction are arranged on the plurality of support blocks. The top plate presses against the lower surface of the circuit board through the plurality of support blocks, and the positioning columns are respectively used to pass through a plurality of through holes on the circuit board.

[0016] According to the circuit board detection device of the embodiment of the present invention, the second clamping assembly includes a third linear driving member, a fourth linear driving member, a pushing plate and a limiting plate. The fourth linear driving member and the limiting plate are both arranged below the two conveyor belt assemblies. The fourth linear driving member is used to drive the limiting plate to move in the up and down direction so that the limiting plate can rise to the rear of the rear end of the circuit board. The third linear driving member and the pushing plate are both arranged above the two conveyor belt assemblies. The output end of the third linear driving member is connected to the pushing plate, and the third linear driving member is connected to the output end of the first linear driving member so that the pushing plate can descend to the front of the front end of the circuit board. The third linear driving member is used to drive the pushing plate to move in the front and rear direction so that the pushing plate can press against the front end of the circuit board and the pushing plate and the limiting plate can clamp the front and rear ends of the circuit board.

[0017] The circuit board detection device according to an embodiment of the present invention further includes an adjusting device, the adjusting device is disposed in the area of the conveying device corresponding to the detection station, a preset signal intensity value is set in the detection device, the adjusting device is used to adjust the resistance of the potentiometer on the circuit board so as to adjust the output signal intensity of the circuit board, and the adjusting device is electrically connected to the detection device so that the output signal intensity of the circuit board is equal to the preset signal intensity value.

[0018] For the circuit board detection device according to an embodiment of the present invention, the adjusting device includes a motor, a cross screwdriver bit, and a fifth linear driving member. The cross screwdriver bit is parallel to the left-right direction, the left end of the cross screwdriver bit is connected to the output end of the motor, the motor is connected to the output end of the fifth linear driving member, and the fifth linear driving member is used to drive the motor to move in the left-right direction so that the right end of the cross screwdriver bit can abut against the knob of the potentiometer on the circuit board. The motor is used to drive the cross screwdriver bit to rotate so that the right end of the cross screwdriver bit can drive the knob of the potentiometer on the circuit board to rotate, thereby changing the resistance of the potentiometer on the circuit board.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present invention in conjunction with the drawings and embodiments, where:

[0021] Figure 1 is a schematic structural diagram of a circuit board according to an embodiment of the present invention;

[0022] Figure 2 is a schematic structural diagram of a circuit board detection device according to an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a conveying device in a circuit board detection device according to an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of a detection device and an adjusting device in a circuit board detection device according to an embodiment of the present invention;

[0025] Figure 5 is a schematic structural diagram of a detection device, an adjusting device, a clamping and positioning device, and a circuit board in a circuit board detection device according to an embodiment of the present invention;

[0026] Figure 6 is a schematic partial structural diagram of a circuit board detection device according to an embodiment of the present invention;

[0027] Figure 7It is another partial structural schematic diagram of the circuit board detection device in the embodiment of the present utility model;

[0028] Figure 8 It is a structural schematic diagram of the flexible block in the circuit board detection device in the embodiment of the present utility model;

[0029] Reference numerals:

[0030] Conveyor device 100; conveyor belt assembly 110;

[0031] Clamping and positioning device 200; first clamping assembly 210; first linear driving member 211; second linear driving member 212; pressing plate 213; top plate 214; flexible block 215; positioning groove 216; supporting block 217; positioning post 218; second clamping assembly 220; three linear driving member 221; fourth linear driving member 222; pushing plate 223; limiting plate 224;

[0032] Detection device 300; first probe 310; second probe 320; third probe 330; linear driving assembly 340; lifting driving assembly 350;

[0033] Adjusting device 400; motor 410; cross bit 420; fifth linear driving member 430. Detailed implementation manners

[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0036] In the description of the present utility model, "a plurality of" means more than two. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0037] In the description of the present utility model, unless otherwise clearly defined, terms such as "arrangement", "installation", and "connection" should be understood in a broad sense, and those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0038] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model.

[0039] Referring to Figures 1 to 4 , the circuit board detection device of the present utility model includes:

[0040] A conveying device 100 is provided with a detection station, and the conveying device 100 is used to convey multiple circuit boards from the back to the front, so that the multiple circuit boards can move to the detection station in sequence;

[0041] A clamping and positioning device 200 is arranged in the area of the conveying device 100 corresponding to the detection station, and the clamping and positioning device 200 is used to clamp the circuit board at the detection station;

[0042] A detection device 300 is arranged in the area of the conveying device 100 corresponding to the detection station. The detection device 300 is used to detect the performance of the circuit board. The detection device 300 includes a linear driving component 340, a lifting driving component 350, multiple first probes 310, multiple second probes 320, and multiple third probes 330. The multiple first probes 310 and the multiple second probes 320 are linearly distributed in the up and down direction. The linear driving component 340 can drive the multiple first probes 310 and the multiple second probes 320 to approach the circuit board at the detection station, so that the multiple first probes 310 are respectively inserted into multiple input holes of the input components on the circuit board, and the multiple second probes 320 are respectively inserted into multiple output holes of the output components on the circuit board. The lifting driving component 350 can drive the multiple third probes 330 to rise and approach the circuit board at the detection station, so that the multiple third probes 330 respectively abut against the pins of multiple electronic components on the circuit board.

[0043] It can be understood that the conveying device 100 conveys multiple circuit boards to be detected from the back to the front, so that the multiple circuit boards to be detected can move to the detection station in sequence. A clamping and positioning device 200 and a detection device 300 are arranged in the area of the conveying device 100 corresponding to the detection station. When the circuit board moves to the detection station, the clamping and positioning device 200 clamps the circuit board at the detection station, so that the circuit board is fixed to prevent the circuit board from shaking during the detection process. On the other hand, the clamping and positioning device 200 also plays a positioning role, enabling the detection device 300 to accurately detect the circuit board. After the clamping and positioning device 200 clamps the circuit board, the lifting drive assembly 350 in the detection device 300 first drives multiple third probes 330 to rise and approach the lower surface of the circuit board, so that the multiple third probes 330 respectively abut against the pins of multiple electronic components on the circuit board. Then the linear drive assembly 340 drives multiple first probes 310 and multiple second probes 320 to approach the circuit board, so that the multiple first probes 310 are respectively inserted into multiple input holes of the input components on the circuit board, and the multiple second probes 320 are respectively inserted into multiple output holes of the output components on the circuit board. After the multiple first probes 310, the multiple second probes 320, and the multiple third probes 330 move into place, the detection device 300 can detect the performance of the circuit board, such as connectivity, signal transmission performance, and output signal strength, etc. After the circuit board at the detection station is detected, the clamping and positioning device 200 releases the circuit board, and then the conveying device 100 continues to convey multiple circuit boards from the back to the front, so that the detected circuit board can move to the downstream processing equipment, and the next circuit board to be detected can move to the detection station. This circuit board detection device can make the multiple first probes 310, the multiple second probes 320, and the multiple third probes 330 move into place synchronously, improving the detection speed of the circuit board, and thus being beneficial to improving the detection efficiency of the circuit board.

[0044] It should be noted that in the embodiment of the present utility model, the detection device 300 further includes a processor and a power supply. The processor is electrically connected to multiple first probes 310, multiple second probes 320, and multiple third probes 330. The power supply is connected to multiple first probes 310 and multiple second probes 320. After multiple first probes 310 are respectively inserted into multiple input holes of input components on the circuit board, and multiple second probes 320 are respectively inserted into multiple output holes of output components on the circuit board, multiple first probes 310 and multiple second probes 320 can be powered on, so that the circuit board forms a complete path. The processor can judge whether the circuit board is conducting based on the power-on situation and the feedback electrical signals of multiple first probes 310 and multiple second probes 320, so as to detect the connectivity and output signal strength of the circuit board. Multiple third probes 330 touch the pins of the electronic components. When the circuit board is conducting, the processor can monitor the signal transmission path on the circuit board based on the electrical signals feedback by the third probes 330, and can analyze the signal transmission route and delay situation to complete the detection of the signal transmission performance of the circuit board. This detection principle is a common circuit board detection principle and will not be further elaborated here.

[0045] Specifically, in the present utility model, the linear drive assembly 340 is arranged on the right side of the conveying device 100. The linear drive assembly 340 is used to drive multiple first probes 310 and multiple second probes 320 to move in the left-right direction. When the linear drive assembly 340 drives multiple first probes 310 and multiple second probes 320 to move leftward, they can approach the circuit board. The lifting drive assembly 350 is used to drive multiple third probes 330 to move in the up-down direction, so that multiple third probes 330 can touch the pins on the lower surface of the circuit board. Multiple first probes 310 are all arranged behind multiple second probes 320. The output end of the linear drive assembly 340 is connected to multiple first probes 310 and multiple second probes 320, and the output end of the lifting drive assembly 350 is connected to multiple third probes 330.

[0046] Reference Figure 3 , the conveying device 100 includes two conveyor belt assemblies 110. Both two conveyor belt assemblies 110 are parallel to the front-back direction. The two conveyor belt assemblies 110 are respectively used to abut against the left and right ends of the circuit board, so that the two conveyor belt assemblies 110 can drive the circuit board to move from back to front. It can be understood that the two conveyor belt assemblies 110 respectively abut against the left and right ends of the circuit board, and then the two conveyor belt assemblies 110 are started, and multiple circuit boards can be driven to move from back to front, so that multiple circuit boards are sequentially moved to the detection station.

[0047] Reference Figures 5 to 8, the clamping and positioning device 200 includes a first clamping component 210 and a second clamping component 220. The first clamping component 210 is used to clamp the upper and lower ends of the circuit board at the detection station, and the second clamping component 220 is used to clamp the front and rear ends of the circuit board at the detection station. It can be understood that the first clamping component 210 can clamp the upper and lower ends of the circuit board at the detection station, and the second clamping component 220 can clamp the front and rear ends of the circuit board at the detection station, that is, the first clamping component 210 can position the circuit board in the up and down direction, and the second clamping component 220 can position the circuit board in the front and rear direction. Under the positioning action of the first clamping component 210 and the second clamping component 220, a plurality of first probes 310 can respectively align with a plurality of input holes of the input components on the circuit board, a plurality of second probes 320 can respectively align with a plurality of output holes of the output components on the circuit board, and a plurality of third probes 330 can respectively align with a plurality of pins on the lower surface of the circuit board, so as to ensure that the plurality of first probes 310, the plurality of second probes 320, and the plurality of third probes 330 can accurately move into place, and further ensure that the performance detection of the circuit board can be smoothly carried out.

[0048] Reference Figures 5 to 7 , the first clamping component 210 includes a first linear driving member 211, a second linear driving member 212, a pressing plate 213, and a top plate 214. The pressing plate 213 is arranged above the two conveyor belt assemblies 110, and both the top plate 214 and the second linear driving member 212 are arranged below between the two conveyor belt assemblies 110. The first linear driving member 211 is used to drive the pressing plate 213 to move in the up and down direction so that the pressing plate 213 can press against the upper end of the circuit board, and the second linear driving member 212 is used to drive the top plate 214 to move in the up and down direction so that the top plate 214 can press against the lower surface of the circuit board and the pressing plate 213 and the top plate 214 clamp the upper and lower ends of the circuit board. It can be understood that after the circuit board moves to the detection station, the first linear driving member 211 drives the pressing plate 213 to descend, so that the pressing plate 213 presses against the upper end of the circuit board, and the second linear driving member 212 drives the top plate 214 to ascend, so that the top plate 214 presses against the lower surface of the circuit board, and further the pressing plate 213 and the top plate 214 clamp the upper and lower ends of the circuit board to complete the positioning of the circuit board in the up and down direction. Specifically, the output end of the first linear driving member 211 is connected to the pressing plate 213, and the output end of the second linear driving member 212 is connected to the top plate 214.

[0049] Reference Figure 5 and Figure 8, there are multiple flexible blocks 215 provided on the pressing plate 213, and the pressing plate 213 presses against the upper end of the circuit board through the multiple flexible blocks 215. It can be understood that the flexible blocks 215 can undergo elastic deformation, so that when the flexible blocks 215 press against the upper end of the circuit board, elastic deformation can occur, preventing the pressing plate 213 from damaging the circuit board. On the other hand, the flexible blocks 215 that can undergo elastic deformation can increase the low pressure between the pressing plate 213 and the circuit board, further improving the stability of the pressing plate 213 and the top plate 214 for clamping the circuit board. Further, positioning grooves 216 are formed on the flexible blocks 215, and the positioning grooves 216 are used for the mounting plates on the circuit board to pass through, and the side walls of the positioning grooves 216 can position the potential plate in the left-right direction.

[0050] Reference Figure 7 , there are multiple support blocks 217 provided on the top plate 214, and positioning posts 218 parallel to the up-down direction are provided on the multiple support blocks 217. The top plate 214 presses against the lower surface of the circuit board through the multiple support blocks 217, and the positioning posts 218 are respectively used to pass through multiple through holes on the circuit board. It can be understood that the second linear driving member 212 drives the top plate 214 to rise, the top plate 214 drives the multiple support blocks 217 and the multiple positioning posts 218 to rise, and the multiple positioning posts 218 can respectively pass through the multiple through holes on the circuit board and make the multiple support blocks 217 press against the lower surface of the circuit board. The positioning posts 218 passing through the through holes on the circuit board play a role in positioning the circuit board in the horizontal direction to ensure that the subsequent detection device 300 can smoothly perform detection.

[0051] In the present utility model, the lifting drive assembly 350 is provided on the top plate 214. After the second linear driving member 212 drives the top plate 214 to rise, the lifting drive assembly 350 and multiple third probes 330 rise synchronously, and then the lifting drive assembly 350 drives the multiple third probes 330 to rise and abut against the pins.

[0052] Reference Figure 6 and Figure 7, the second clamping assembly 220 includes a third linear drive member 221, a fourth linear drive member 222, a push plate 223 and a limit plate 224. The fourth linear drive member 222 and the limit plate 224 are both disposed below the two conveyor belt assemblies 110. The fourth linear drive member 222 is used to drive the limit plate 224 to move in the up-and-down direction so that the limit plate 224 can rise to the rear of the rear end of the circuit board. The third linear drive member 221 and the push plate 223 are both disposed above the two conveyor belt assemblies 110. The output end of the third linear drive member 221 is connected to the push plate 223. The third linear drive member 221 is connected to the output end of the first linear drive member 211 so that the push plate 223 can descend to the front of the front end of the circuit board. The third linear drive member 221 is used to drive the push plate 223 to move in the front-rear direction so that the push plate 223 can press against the front end of the circuit board and the push plate 223 and the limit plate 224 can clamp the front and rear ends of the circuit board.

[0053] It can be understood that after the circuit board moves to the detection station, the first linear drive member 211 drives the pressure plate 213 to descend. Since the output end of the first linear drive member 211 is connected to the third linear drive member 221, the third linear drive member 221 and the push plate 223 can follow the pressure plate 213 to descend together, so that the push plate 223 can descend to the front of the front end of the circuit board. The second linear drive member 212 drives the top plate 214 to rise, so that the top plate 214 presses against the lower surface of the circuit board, and further the pressure plate 213 and the top plate 214 clamp the upper and lower ends of the circuit board to complete the positioning of the circuit board in the up-and-down direction. Then the fourth linear drive member 222 drives the limit plate 224 to rise to the rear of the rear end of the circuit board, and then the third linear drive member 221 drives the push plate 223 to move backward. At this time, under the backward pushing force of the push plate 223, the limit plate 224 abuts against the rear end of the circuit board, and further the push plate 223 and the limit plate 224 clamp the front and rear ends of the circuit board to complete the positioning of the circuit board in the front-rear direction.

[0054] Reference Figure 4, the circuit board detection device further includes an adjustment device 400. The adjustment device 400 is arranged in the area of the conveying device 100 corresponding to the detection station. A preset signal intensity value is set in the detection device 300. The adjustment device 400 is used to adjust the resistance of the potentiometer on the circuit board to adjust the output signal intensity of the circuit board. The adjustment device 400 is electrically connected to the detection device 300 so that the output signal intensity of the circuit board is equal to the preset signal intensity value. It can be understood that during the process of the detection device 300 detecting the output signal intensity of the circuit board, the adjustment device 400 can adjust the resistance of the potentiometer on the circuit board in real time according to the output signal intensity of the circuit board detected by the detection device 300, so as to achieve the purpose of adjusting the output signal intensity of the circuit board. When the output signal intensity of the circuit board detected by the detection device 300 is equal to the preset signal intensity value, the adjustment device 400 stops adjusting, so that the output signal intensity of the circuit board at the detection station can be equal to the preset signal intensity value.

[0055] Reference Figure 1 , in the embodiment of the present invention, various types of electronic components are provided on the circuit board, such as input components, output components, and potentiometers. For the convenience of description, A, B, C, and D in the figure are an input component, an output component, a potentiometer, and a mounting plate respectively. The input component A is the input port of the circuit board and is used to receive input signals or data from external devices. The output component B is the output port of the circuit board and is used to send data or signals to external devices. The potentiometer C is an electronic component used to adjust the resistance value. It consists of an adjustable sliding resistor and a knob. By rotating the knob, the resistance value between both ends of the potentiometer can be changed, so as to achieve the purpose of adjusting the output signal intensity of the circuit board. A mounting plate D is also provided on the circuit board. The mounting plate D is a connecting piece, so that the circuit board can be connected to the product shell through the mounting plate D.

[0056] Reference Figure 4, the adjusting device 400 includes a motor 410, a cross bit 420, and a fifth linear driving member 430. The cross bit 420 is parallel to the left - right direction. The left end of the cross bit 420 is connected to the output end of the motor 410. The motor 410 is connected to the output end of the fifth linear driving member 430. The fifth linear driving member 430 is configured to drive the motor 410 to move in the left - right direction, so that the right end of the cross bit 420 can abut against the knob of the potentiometer on the circuit board. The motor 410 is configured to drive the cross bit 420 to rotate, so that the right end of the cross bit 420 can drive the knob of the potentiometer on the circuit board to rotate, thereby changing the resistance of the potentiometer on the circuit board. It can be understood that since the motor 410 is connected to the output end of the fifth linear driving member 430, when the linear driving assembly 340 drives the plurality of first probes 310 and the plurality of second probes 320 to approach the circuit board, under the action of the fifth linear driving member 430, the motor 410 and the cross bit 420 also approach the circuit board. When the plurality of first probes 310 are respectively inserted into the plurality of input holes of the input components on the circuit board, and the plurality of second probes 320 are respectively inserted into the plurality of output holes of the output components on the circuit board, the right end of the cross bit 420 simultaneously abuts against the knob of the potentiometer on the circuit board.

[0057] The motor 410 rotates the cross bit 420 forward or backward according to the output signal intensity of the circuit board detected by the detecting device 300, so as to change the resistance of the potentiometer, and further achieve the purpose of adjusting the output signal intensity of the circuit board, so that the output signal intensity of the circuit board is equal to the preset output signal intensity value.

[0058] The technical features of the above - described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above - described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0059] Certainly, the present invention is not limited to the above - described embodiments. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A circuit board detection device, characterized in that, Including: A conveying device, on which a detection station is provided. The conveying device is used to convey multiple circuit boards from back to front, so that the multiple circuit boards can move to the detection station in sequence. A clamping and positioning device, which is arranged in the area of the conveying device corresponding to the detection station. The clamping and positioning device is used to clamp the circuit board at the detection station. A detection device, which is arranged in the area of the conveying device corresponding to the detection station. The detection device is used to detect the performance of the circuit board. The detection device includes a linear driving component, a lifting driving component, multiple first probes, multiple second probes and multiple third probes. The multiple first probes and the multiple second probes are linearly distributed along the up and down direction. The linear driving component can drive the multiple first probes and the multiple second probes to approach the circuit board at the detection station, so that the multiple first probes are respectively inserted into multiple input holes of the input components on the circuit board, and the multiple second probes are respectively inserted into multiple output holes of the output components on the circuit board. The lifting driving component can drive the multiple third probes to rise and approach the circuit board at the detection station, so that the multiple third probes are abutted against the pins of multiple electronic components on the circuit board.

2. The circuit board detection device according to claim 1, wherein: The conveying device includes two conveyor belt components. Both of the two conveyor belt components are parallel to the front-back direction. The two conveyor belt components are respectively used to abut against the left and right ends of the circuit board, so that the two conveyor belt components can drive the circuit board to move from back to front.

3. The circuit board detection device according to claim 2, characterized in that: The clamping and positioning device includes a first clamping component and a second clamping component. The first clamping component is used to clamp the upper and lower ends of the circuit board at the detection station, and the second clamping component is used to clamp the front and rear ends of the circuit board at the detection station.

4. The circuit board detection device according to claim 3, wherein: The first clamping component includes a first linear driving member, a second linear driving member, a pressing plate and a top plate. The pressing plate is arranged above the two conveyor belt components. The top plate and the second linear driving member are both arranged below between the two conveyor belt components. The first linear driving member is used to drive the pressing plate to move in the up and down direction, so that the pressing plate can press against the upper end of the circuit board. The second linear driving member is used to drive the top plate to move in the up and down direction, so that the top plate can press against the lower surface of the circuit board, and the pressing plate and the top plate clamp the upper and lower ends of the circuit board.

5. The circuit board detection device according to claim 4, wherein: Multiple flexible blocks are arranged on the pressing plate. The pressing plate presses against the upper end of the circuit board through the multiple flexible blocks.

6. The circuit board detection device according to claim 5, wherein: Positioning grooves are formed in the flexible blocks. The positioning grooves are used for the mounting plates on the circuit board to pass through.

7. The circuit board detection device according to claim 4, characterized in that: Multiple supporting blocks are arranged on the top plate. Positioning columns parallel to the up and down direction are arranged on the multiple supporting blocks. The top plate presses against the lower surface of the circuit board through the multiple supporting blocks. The positioning columns are respectively used to pass through multiple through holes on the circuit board.

8. The circuit board detection device according to claim 4, wherein: The second clamping assembly includes a third linear drive, a fourth linear drive, a push plate and a limiting plate. The fourth linear drive and the limiting plate are both arranged below the two conveyor belt assemblies. The fourth linear drive is used to drive the limiting plate to move in the up and down direction so that the limiting plate can rise to the rear of the rear end of the circuit board. The third linear drive and the push plate are both arranged above the two conveyor belt assemblies. The output end of the third linear drive is connected to the push plate, and the third linear drive is connected to the output end of the first linear drive so that the push plate can descend to the front of the front end of the circuit board. The third linear drive is used to drive the push plate to move in the front and rear direction so that the push plate can press against the front end of the circuit board and the push plate and the limiting plate can clamp the front and rear ends of the circuit board.

9. The circuit board detection device according to claim 1, characterized in that: It further includes an adjusting device which is arranged in the area of the conveying device corresponding to the detection station. A preset signal intensity value is set in the detection device. The adjusting device is used to adjust the resistance of the potentiometer on the circuit board to adjust the output signal intensity of the circuit board. The adjusting device is electrically connected to the detection device so that the output signal intensity of the circuit board is equal to the preset signal intensity value.

10. The circuit board detection device according to claim 9, wherein: The adjusting device includes a motor, a cross screwdriver bit and a fifth linear drive. The cross screwdriver bit is parallel to the left and right direction. The left end of the cross screwdriver bit is connected to the output end of the motor. The motor is connected to the output end of the fifth linear drive. The fifth linear drive is used to drive the motor to move in the left and right direction so that the right end of the cross screwdriver bit can abut against the knob of the potentiometer on the circuit board. The motor is used to drive the cross screwdriver bit to rotate so that the right end of the cross screwdriver bit can drive the knob of the potentiometer on the circuit board to rotate to change the resistance of the potentiometer on the circuit board.

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