Circuit board test positioning tool

Abstract

The utility model discloses a circuit board test positioning tool. The circuit board test positioning tool comprises a rack; the first positioning mechanism comprises a first driving assembly and a first clamping plate; the second positioning mechanism comprises a connecting block, a second driving assembly and a second clamping plate; a heat dissipation mechanism; through the arrangement of the first telescopic rod and the second telescopic rod, when the ends of the first telescopic rod and the second telescopic rod make contact with the circuit board, the first spring and the second spring are both in a natural state, and when the heads of the first telescopic rod and the second telescopic rod are attached to electronic components on the circuit board, the first spring and the second spring are both in a contraction state. In the process, the length of the first telescopic rod and the second telescopic rod can be adjusted, so that the first telescopic rod and the second telescopic rod make full contact with the circuit board, the circuit board can be fully clamped, the circuit board is prevented from loosening, and electronic components on the circuit board can be further prevented from being extruded in the clamping process.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board performance testing, in particular to a circuit board testing positioning tool. Background Art

[0002] Circuit boards, also known as printed circuit boards or PCB boards, are important structures of electronic devices. Circuit boards are mainly composed of pads, wires, components and other structures. After the circuit boards are processed, they need to be tested for performance. During the performance test, positioning fixtures are needed to position and clamp them.

[0003] In the prior art, there is a circuit board performance test positioning tool with announcement number CN220730272U, which includes: a heat sink and a circuit board body, the top of the heat sink clamps the circuit board body through a positioning and clamping mechanism, and the positioning and clamping mechanism includes a first clamping plate and a second clamping plate; the circuit board body is placed on the first clamping plate, and when the circuit board body is fixed, the first clamping plate positions and clamps the left and right sides of the circuit board body, and the second clamping plate positions and clamps the top of the circuit board body.

[0004] However, in the above scheme, some of the processed circuit boards are installed with electronic components or equipped with interfaces and other structures, so that the edge surface of the circuit board is not a flat surface, while the second clamping plate is a flat surface. When the second clamping plate positions and clamps the top of the circuit board body, the fit between the second clamping plate and the circuit board body is poor, and it is easy for insufficient clamping to occur due to too few fitting contact positions, which makes the circuit board easy to loosen. Utility Model Content

[0005] The utility model aims to provide a circuit board testing and positioning tool, which can fully clamp the circuit board and prevent the circuit board from loosening.

[0006] To achieve the above-mentioned purpose, a circuit board test positioning tool is provided, which includes: a frame; a first positioning mechanism, the first positioning mechanism includes a first drive assembly and a first clamping plate, the first drive assembly is connected to the frame, two first clamping plates are provided, the two first clamping plates are both connected to the first drive assembly and are slidably connected to the frame, the longitudinal cross-sections of the two first clamping plates are both L-shaped, and a plurality of first telescopic rods are inserted and slidably inserted at intervals along the length direction of the two first clamping plates, and a first spring is provided between the plurality of first telescopic rods and the first clamping plates; a second positioning mechanism, the second positioning mechanism includes a connecting block, a second drive assembly and a second clamping plate, the connecting block is connected to the first clamping plate, the second drive assembly is connected to the connecting block, the second clamping plate is connected to the second drive assembly and is slidably connected to the connecting block, the second telescopic rod is slidably inserted at the bottom of the second clamping plate, an insert tube is provided at the top of the second clamping plate, the top of the second telescopic rod extends and is inserted into the insert tube, and a second spring is provided in the insert tube, and the second spring is located between the second telescopic rod and the top of the insert tube; a heat dissipation mechanism, the heat dissipation mechanism is located on the frame.

[0007] The working principle and effect of the above scheme are as follows: when the positioning tool is used to fix the circuit board, the two ends of the circuit board are respectively placed on the two first clamping plates, and the parts of the first telescopic rods on the two first clamping plates are in contact with the circuit board, and the heads of the corresponding first telescopic rods are in contact with the circuit board. The first driving component is started to drive the two first clamping plates to approach each other, so that the two first clamping plates are in contact with the sides of the circuit board. At this time, the circuit board is clamped between the two first clamping plates; the second driving component is started, and the second driving component drives the second clamping plate to move downward, so that the head of the second telescopic rod is in contact with the circuit board. At this time, the upper and lower ends of the circuit board are clamped between the first telescopic rod and the second telescopic rod; when the heads of the first telescopic rod and the second telescopic rod are in contact with the electronic components on the circuit board, the first spring and the second spring are both in a contracted state; the heads of the first telescopic rod and the second telescopic rod are both covered with a rubber layer, and when the first telescopic rod and the second telescopic rod are in contact with the circuit board, the rubber layer can play an anti-slip role.

[0008] By providing the first telescopic rod and the second telescopic rod, when the ends of the first telescopic rod and the second telescopic rod are in contact with the circuit board, the first spring and the second spring are both in a natural state, and when the heads of the first telescopic rod and the second telescopic rod are in contact with the electronic components on the circuit board, the first spring and the second spring are both in a contracted state. During this process, the lengths of the first telescopic rod and the second telescopic rod can be adjusted to fully contact the circuit board, thereby fully clamping the circuit board to prevent the circuit board from loosening, and further preventing the electronic components on the circuit board from being squeezed during the clamping process.

[0009] According to the circuit board testing and positioning tool, the frame includes a workbench, legs, a slide groove and a bracket. A plurality of legs are arranged at the bottom of the workbench, and the plurality of legs are arranged in a rectangular shape. Two slide grooves are arranged at intervals at the top of the workbench. The bracket is located at the bottom of the workbench and on the inner side of the plurality of legs.

[0010] The rack is composed of a workbench, legs, a slide groove and a bracket. The workbench can support the first positioning mechanism, the legs can support the workbench, the first positioning mechanism can slide along the slide groove, and the bracket can support the heat dissipation mechanism.

[0011] According to the circuit board testing and positioning tool, the first driving component includes a dual-axis motor, a first screw and a bidirectional screw, the dual-axis motor and the first screw are both located in one of the slide slots, two first screws are provided and are respectively arranged on both sides of the dual-axis motor, one end of the two first screws are transmission connected to the dual-axis motor, the other ends of the two first screws are rotationally connected to the side wall of the slide slot, the bidirectional screw is rotationally arranged in another slide slot, and one of the first screws is transmission connected to the bidirectional screw.

[0012] One of the first screws is provided with a first transmission wheel, and the bidirectional screw is provided with a second transmission wheel. A transmission belt is wound around the first transmission wheel and the second transmission wheel to drive and connect the first screw and the bidirectional screw. When the first drive component is working, the double-axis motor is started, and the double-axis motor can drive the first screw and the bidirectional screw to rotate simultaneously.

[0013] According to the circuit board testing and positioning tool, two sliders are spaced apart at the bottom of the first clamping plate, and the two sliders are slidably connected to corresponding slide grooves respectively, wherein one slider is cooperatively connected to the corresponding first screw rod, and the other slider is cooperatively connected to the bidirectional screw rod.

[0014] When the first screw is rotated, the slider connected thereto can be driven to move, and when the bidirectional screw is rotated, the slider connected thereto can be driven to move; during this process, the slider moves along the slide groove, and the slide groove can play a guiding role.

[0015] According to the circuit board testing and positioning tool, the second driving assembly includes a second motor and a second screw, the second motor is located at the top of the connecting block, one end of the second screw is transmission-connected to the second motor, the other end of the second screw is rotationally connected to the connecting block, and the second clamping plate is cooperatively connected to the second screw.

[0016] When the second driving assembly is working, the second motor is started, the second motor can drive the second screw rod to rotate, and the rotation of the second screw rod can drive the second clamping plate to move up and down.

[0017] According to the circuit board testing and positioning tool, the workbench and the bracket are both provided with ventilation holes.

[0018] When the circuit board is clamped on the positioning fixture and tested, ventilation holes are provided on the workbench and the bracket to allow air to circulate at the bottom of the circuit board, thereby facilitating heat dissipation of the circuit board.

[0019] According to the circuit board test positioning tool, the heat dissipation mechanism includes a drive motor, a connecting shaft and a heat dissipation fan, the drive motor is located at the bottom of the bracket, the connecting shaft and the heat dissipation fan are both located between the bracket and the workbench, the connecting shaft passes through the heat dissipation fan, one end of the connecting shaft is transmission-connected to the drive motor, and the other end of the connecting shaft is rotationally connected to the workbench.

[0020] When the heat dissipation mechanism is working, the driving motor is started, and the driving motor drives the connecting shaft to rotate, and the rotation of the connecting shaft can drive the heat dissipation fan to rotate; when the heat dissipation fan rotates, the speed of air flow at the bottom of the circuit board can be accelerated, thereby accelerating the heat dissipation speed of the circuit board.

[0021] According to the circuit board test positioning tool, a groove is arranged on the top of the workbench, and a roller is arranged on the bottom of the connecting block, and the roller is located in the groove.

[0022] When the first clamping plate moves, the connecting block moves accordingly, and during this process the roller rolls along the groove; by arranging the roller, the connecting block can be supported.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0025] Figure 1 A three-dimensional image of a circuit board test positioning fixture.

[0026] Figure 2 A sectional perspective view of a first clamping plate of a circuit board testing and positioning tool.

[0027] Figure 3 for Figure 2 Enlarged view of part A.

[0028] Figure 4 A sectional perspective view of a second clamping plate of a circuit board testing and positioning tool.

[0029] Figure 5 A front view of a heat dissipation mechanism of a circuit board test positioning fixture.

[0030] Figure 6 A three-dimensional image of a heat dissipation fan of a circuit board test positioning fixture.

[0031] Among them: frame 10, workbench 11, ventilation hole 111, groove 112, leg 12, slide 13, bracket 14, first positioning mechanism 20, first driving assembly 21, dual-axis motor 211, first screw 212, bidirectional screw 213, first clamping plate 22, first telescopic rod 221, first spring 222, slider 223, second positioning mechanism 30, connecting block 31, roller 311, second driving assembly 32, second motor 321, second screw 322, second clamping plate 33, second telescopic rod 331, insert 332, second spring 333, heat dissipation mechanism 40, driving motor 41, connecting shaft 42, cooling fan 43. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figure 1-Figure 6The utility model is a circuit board test positioning tool, which includes: a frame 10; a first positioning mechanism 20, the first positioning mechanism 20 includes a first driving component 21 and a first clamping plate 22, the first driving component 21 is connected to the frame 10, and two first clamping plates 22 are provided, and the two first clamping plates 22 are both connected to the first driving component 21 and are slidably connected to the frame 10. The longitudinal cross-sections of the two first clamping plates 22 are both L-shaped, and a plurality of first telescopic rods 221 are inserted and slidably inserted along the length direction of the two first clamping plates 22 at intervals, and a first spring 222 is provided between the plurality of first telescopic rods 221 and the first clamping plates 22; a second positioning mechanism 30, the second positioning mechanism 30 includes a first driving component 21 and a first clamping plate 22, and a first spring 222 is provided between the first driving component 21 and the first clamping plate 22. The positioning mechanism 30 includes a connecting block 31, a second driving assembly 32 and a second clamping plate 33, wherein the connecting block 31 is connected to the first clamping plate 22, the second driving assembly 32 is connected to the connecting block 31, the second clamping plate 33 is connected to the second driving assembly 32 and is slidably connected to the connecting block 31, a second telescopic rod 331 is slidably inserted at the bottom of the second clamping plate 33, a plug sleeve 332 is provided at the top of the second clamping plate 33, the top of the second telescopic rod 331 extends and is inserted into the plug sleeve 332, and a second spring 333 is provided in the plug sleeve 332, and the second spring 333 is located between the second telescopic rod 331 and the top of the plug sleeve 332; a heat dissipation mechanism 40, wherein the heat dissipation mechanism 40 is located on the frame 10.

[0037] Specifically, when the positioning fixture is used to fix the circuit board, the two ends of the circuit board are respectively placed on the two first clamping plates 22, and the first telescopic rods 221 on the two first clamping plates 22 are in contact with the circuit board, and the heads of the corresponding first telescopic rods 221 are in contact with the circuit board. The first driving component 21 is started to drive the two first clamping plates 22 to approach each other, so that the two first clamping plates 22 are in contact with the sides of the circuit board. At this time, the circuit board is clamped between the two first clamping plates 22; the second driving component 32 is started, and the second driving component 32 drives the second clamping plate 33 downward The first and second telescopic rods 221 and 331 are moved so that the head of the second telescopic rod 331 is in contact with the circuit board. At this time, the upper and lower ends of the circuit board are clamped between the first telescopic rod 221 and the second telescopic rod 331. When the heads of the first telescopic rod 221 and the second telescopic rod 331 are in contact with the electronic components on the circuit board, the first spring 222 and the second spring 333 are both in a contracted state. The heads of the first telescopic rod 221 and the second telescopic rod 331 are both covered with a rubber layer. When the first telescopic rod 221 and the second telescopic rod 331 are in contact with the circuit board, the rubber layer can play an anti-slip role.

[0038] Optionally, the frame 10 includes a workbench 11, legs 12, slide grooves 13 and a bracket 14. A plurality of legs 12 are arranged at the bottom of the workbench 11. The plurality of legs 12 are arranged in a rectangular shape. Two slide grooves 13 are arranged at intervals on the top of the workbench 11. The bracket 14 is located at the bottom of the workbench 11 and on the inner side of the plurality of legs 12.

[0039] Optionally, the first driving component 21 includes a dual-axis motor 211, a first screw 212 and a bidirectional screw 213, the dual-axis motor 211 and the first screw 212 are both located in one of the slide grooves 13, two first screws 212 are provided and are respectively arranged on both sides of the dual-axis motor 211, one end of the two first screws 212 are transmission connected to the dual-axis motor 211, the other ends of the two first screws 212 are rotationally connected to the side wall of the slide groove 13, the bidirectional screw 213 is rotationally arranged in another slide groove 13, and one of the first screws 212 and the bidirectional screw 213 are transmission connected.

[0040] Optionally, two sliders 223 are spaced apart at the bottom of the first clamping plate 22 , and the two sliders 223 are respectively slidably connected to the corresponding slide grooves 13 , wherein one slider 223 is cooperatively connected to the corresponding first screw rod 212 , and the other slider 223 is cooperatively connected to the bidirectional screw rod 213 .

[0041] Optionally, the second driving assembly 32 includes a second motor 321 and a second screw 322, the second motor 321 is located at the top of the connecting block 31, one end of the second screw 322 is transmission connected to the second motor 321, the other end of the second screw 322 is rotationally connected to the connecting block 31, and the second clamping plate 33 is cooperatively connected to the second screw 322.

[0042] Optionally, the workbench 11 and the bracket 14 are both provided with ventilation holes 111 .

[0043] Optionally, the heat dissipation mechanism 40 includes a driving motor 41, a connecting shaft 42 and a cooling fan 43, the driving motor 41 is located at the bottom of the bracket 14, the connecting shaft 42 and the cooling fan 43 are both located between the bracket 14 and the workbench 11, the connecting shaft 42 passes through the cooling fan 43, one end of the connecting shaft 42 is transmission-connected to the driving motor 41, and the other end of the connecting shaft 42 is rotationally connected to the workbench 11.

[0044] Optionally, a groove 112 is disposed on the top of the workbench 11 , and a roller 311 is disposed on the bottom of the connecting block 31 , and the roller 311 is located in the groove 112 .

[0045] Specifically, when the positioning fixture is used to fix the circuit board, the two ends of the circuit board are respectively placed on the two first clamping plates 22, and the first telescopic rods 221 on the two first clamping plates 22 are in contact with the circuit board, and the corresponding heads of the first telescopic rods 221 are in contact with the circuit board. The double-axis motor 211 is started, and the double-axis motor 211 can drive the first screw 212 and the bidirectional screw 213 to rotate simultaneously, thereby driving the first clamping plates 22 to move. When the two first clamping plates 22 are close to each other and in contact with the side of the circuit board, the circuit board is clamped between the two first clamping plates. 22; start the second motor 321, the second motor 321 can drive the second screw 322 to rotate, the rotation of the second screw 322 can drive the second clamping plate 33 to move downward, so that the head of the second telescopic rod 331 is in contact with the circuit board. At this time, the upper and lower ends of the circuit board are clamped between the first telescopic rod 221 and the second telescopic rod 331; after the circuit board is installed, start the drive motor 41, the drive motor 41 drives the connecting shaft 42 to rotate, the rotation of the connecting shaft 42 can drive the cooling fan 43 to rotate, thereby accelerating the heat dissipation of the circuit board.

[0046] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A circuit board testing and positioning tool, characterized in that: include: frame; A first positioning mechanism, the first positioning mechanism comprises a first driving assembly and a first clamping plate, the first driving assembly is connected to the frame, two first clamping plates are provided, both of the two first clamping plates are connected to the first driving assembly and are slidably connected to the frame, the longitudinal cross-sections of the two first clamping plates are both L-shaped, a plurality of first telescopic rods are inserted and slidably inserted at intervals along the length direction of the two first clamping plates, and a first spring is provided between the plurality of first telescopic rods and the first clamping plates; A second positioning mechanism, the second positioning mechanism comprises a connecting block, a second driving assembly and a second clamping plate, the connecting block is connected to the first clamping plate, the second driving assembly is connected to the connecting block, the second clamping plate is connected to the second driving assembly and is slidably connected to the connecting block, a second telescopic rod is slidably inserted at the bottom of the second clamping plate, an insert tube is provided at the top of the second clamping plate, the top of the second telescopic rod extends and is inserted into the insert tube, and a second spring is provided in the insert tube, and the second spring is located between the second telescopic rod and the top of the insert tube; The heat dissipation mechanism is located on the rack.

2. A circuit board testing and positioning tool according to claim 1, characterized in that: The frame includes a workbench, legs, slides and a bracket. A plurality of legs are arranged at the bottom of the workbench in a rectangular shape. Two slides are arranged at intervals on the top of the workbench. The bracket is located at the bottom of the workbench and on the inner side of the plurality of legs.

3. A circuit board testing and positioning tool according to claim 2, characterized in that: The first driving component includes a dual-axis motor, a first screw and a bidirectional screw. The dual-axis motor and the first screw are both located in one of the slide grooves. Two first screws are provided and are arranged on both sides of the dual-axis motor. One end of the two first screws is transmission connected to the dual-axis motor, and the other end of the two first screws is rotationally connected to the side wall of the slide groove. The bidirectional screw is rotationally arranged in another slide groove, and one of the first screws is transmission connected to the bidirectional screw.

4. A circuit board testing and positioning tool according to claim 3, characterized in that: Two sliding blocks are spaced apart at the bottom of the first clamping plate. The two sliding blocks are slidably connected to corresponding sliding grooves respectively, one of the sliding blocks is matched and connected to the corresponding first screw rod, and the other sliding block is matched and connected to the bidirectional screw rod.

5. A circuit board testing and positioning tool according to claim 1, characterized in that: The second driving assembly includes a second motor and a second screw, the second motor is located at the top of the connecting block, one end of the second screw is transmission-connected to the second motor, the other end of the second screw is rotationally connected to the connecting block, and the second clamping plate is cooperatively connected to the second screw.

6. A circuit board testing and positioning tool according to claim 2, characterized in that: The workbench and the bracket are both provided with ventilation holes.

7. A circuit board testing and positioning tool according to claim 2, characterized in that: The heat dissipation mechanism includes a driving motor, a connecting shaft and a cooling fan. The driving motor is located at the bottom of the bracket. The connecting shaft and the cooling fan are both located between the bracket and the workbench. The connecting shaft passes through the cooling fan. One end of the connecting shaft is transmission-connected to the driving motor, and the other end of the connecting shaft is rotationally connected to the workbench.

8. A circuit board testing and positioning tool according to claim 2, characterized in that: The top of the workbench is provided with a groove, and the bottom of the connecting block is provided with a roller, and the roller is located in the groove.

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