PCB (printed circuit board) fixing and detecting tool

Abstract

The utility model provides a PCB circuit board fixing and detecting tool, which comprises a fixing mechanism for fixing a PCB circuit board body and a detecting device arranged above the PCB circuit board body, the fixing mechanism comprises two rotating rods which are parallel to each other and transversely arranged, an elastic assembly arranged on the side face of the side, close to the other rotating rod, of one rotating rod, and two conveying belts which are arranged on the rotating rods in parallel and connected with the elastic assembly, and the conveying direction of the conveying belts is parallel to the length direction of the rotating rods. The driving assembly is arranged on the rotating rods and controls the conveying directions of the adjacent conveying faces of the two conveying belts to be the same, the two vertical rods are arranged in the vertical direction, and the top ends of the vertical rods are rotationally connected with the middles of the side faces of the sides, away from each other, of the two rotating rods correspondingly; the rotating assembly is arranged at the top end of the vertical rod and controls the two rotating rods to rotate around the middle position; according to the utility model, the PCB circuit board can be conveniently and comprehensively detected, and the detection efficiency of the PCB circuit board is improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB circuit board testing technology, specifically a PCB circuit board fixing and testing fixture. Background Technology

[0002] Printed circuit boards (PCBs) can be broadly classified into three categories based on the number of layers: single-sided boards, double-sided boards, and multilayer boards. First, there are single-sided boards, where components are concentrated on one side and conductors are concentrated on the other. Double-sided boards are an extension of single-sided boards. They are used when single-layer wiring cannot meet the needs of electronic products. Multilayer boards are printed circuit boards with three or more conductive pattern layers and insulating materials laminated between them, and the conductive patterns are interconnected as required.

[0003] Existing PCB circuit board inspection equipment uses a conveyor belt to transport the circuit boards to the bottom of the inspection device for inspection. After all the circuit boards have been inspected, the reverse side of the circuit board is inspected. Finally, the circuit boards are divided into qualified and unqualified. This method is not convenient for comprehensive inspection of the circuit boards and reduces the inspection efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a PCB circuit board fixing and testing fixture, which can conveniently and comprehensively test PCB circuit boards and improve the testing efficiency of PCB circuit boards.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a PCB circuit board fixing and testing fixture, including a fixing mechanism for fixing the PCB circuit board body and a testing device disposed above the PCB circuit board body. The fixing mechanism includes two parallel and horizontally arranged rotating rods, an elastic component disposed on the side of the rotating rod adjacent to the other rotating rod, two parallel conveyor belts disposed on the rotating rods and connected to the elastic component, with the conveying direction parallel to the length direction of the rotating rods, a driving component disposed on the rotating rods and controlling the conveying direction of the adjacent conveying surfaces of the two conveyor belts to be the same, two vertical rods arranged in the vertical direction and rotatably connected at their top ends to the middle of the side of the two rotating rods away from each other, and a rotating component disposed at the top of the vertical rods and controlling the two rotating rods to rotate around the middle position.

[0006] The elastic component controls the adjacent conveyor surfaces of the two conveyor belts to move closer to each other.

[0007] Preferably, the rotating rod has symmetrical clamping grooves on the side adjacent to the other rotating rod. The driving assembly includes a slider at both ends of each clamping groove, a rotating column at the end face of the slider away from the clamping groove, and a conveying motor on the rotating rod that controls the rotating columns in different clamping grooves to rotate in opposite directions. Two conveyor belts are respectively fitted onto two rotating columns located in different clamping grooves.

[0008] Preferably, the elastic component includes a slide rod arranged vertically and having one end movably passing through the clamping groove, and a clamping spring movably sleeved on the slide rod and having both ends connected to the wall of the clamping groove and the slider, respectively. One end of the slide rod passing through the clamping groove is fixedly connected to the end face of the slider. The conveying motor is fixedly installed on the end face of the slide rod away from the slider and drives the rotating column to rotate through the transmission structure.

[0009] Preferably, the bottom ends of the two vertical rods are vertically fixed on the support platform. The rotating assembly includes a linkage gear fixedly mounted at the middle of one end of the two rotating rods away from each other and passing through the adjacent side of the two vertical rods, a lifting rack passing through the vertical rods and meshing with the linkage gear, and a lifting component mounted in the support platform and controlling the lifting rack to move up and down in the vertical direction. The lifting component drives the lifting rack to move up and down in the vertical direction, and drives the linkage gear to reciprocate 180° around the axis.

[0010] Preferably, the detection device is detachably installed above the support platform via a limiting component. The limiting component includes two fixed rods arranged vertically and whose bottom ends are respectively fixed to the top ends of different vertical rods; a horizontal rod fixedly arranged on the two fixed rods and whose two ends are respectively fixedly connected to the top ends of different fixed rods; a fixed block fixedly arranged at the middle position of the bottom end of the horizontal rod; and a limiting member arranged on the bottom end face of the fixed block and capable of detachably installing the detection device.

[0011] Preferably, the limiting component includes two positioning blocks that are parallel to each other and arranged vertically and slidably disposed on the bottom end face of the fixed block; a bidirectional lead screw that passes through a fixed groove in the bottom end face of the fixed block; a threaded block that is threadedly connected to the two ends of the bidirectional lead screw and fixedly connected to the top of different positioning blocks at its bottom end; and a control block disposed on the side of the fixed block and controlling the rotation of the bidirectional lead screw. Each of the two positioning blocks has a protrusion at the bottom of an adjacent end.

[0012] Preferably, the lifting component includes a lifting cylinder disposed within the support platform and arranged vertically, a second lifting rod arranged laterally on the output end of the lifting cylinder, and two first lifting rods vertically fixed at both ends of the top side of the second lifting rod, with the top ends of the two first lifting rods respectively fixedly connected to the bottom of different lifting racks.

[0013] The beneficial effects of this utility model are as follows: When the PCB circuit board is conveyed to one side of the two rotating rods by the conveying device, and one side of the PCB circuit board passes through the position between the two conveyor belts on the rotating rods, the two conveyor belts are driven to rotate in opposite directions by the drive component, which facilitates the clamping and conveying of the PCB circuit board. During the process of the PCB circuit board moving between the two conveyor belts, the two conveyor belts can be clamped and conveyed by the two conveyor belts due to the close proximity of the elastic components. When the PCB circuit board moves to the position between the two rotating rods, the detection device set above the PCB circuit board position can detect one end face of the PCB circuit board. By driving the two rotating rods to rotate by the rotating component, the PCB circuit board located between the two rotating rods is simultaneously driven to rotate, so that the back of the PCB circuit board can be detected by the detection device, realizing comprehensive detection of the PCB circuit board. This can conveniently and comprehensively detect the PCB circuit board and improve the detection efficiency of the PCB circuit board. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Fig. 1 This is a simplified structural diagram of the PCB circuit board fixing and testing fixture proposed in this utility model.

[0016] Fig. 2 This is a schematic diagram of the fixing mechanism of this utility model.

[0017] Fig. 3 This is a schematic diagram of the drive component structure of this utility model.

[0018] Fig. 4 This is a schematic diagram of the lifting component structure of this utility model.

[0019] Fig. 5 This is a schematic diagram of the limiting component structure of this utility model.

[0020] In the diagram: 1. Support platform; 2. Vertical rod; 3. Rotating rod; 4. Fixed rod; 5. Horizontal rod; 6. Fixed block; 7. Detection device; 8. Conveyor belt; 9. First lifting rod; 10. Second lifting rod; 11. Lifting cylinder; 12. Clamping groove; 13. Slide rod; 14. Clamping spring; 15. Conveyor motor; 16. Lifting rack; 17. Linkage gear; 18. Fixed groove; 19. Bidirectional lead screw; 20. Threaded block; 21. Control block; 22. Positioning block. Detailed Implementation

[0021] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are only preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the embodiments without creative effort are all within the protection scope of this utility model.

[0022] Please see Figs. 1-5 A PCB circuit board fixing and testing fixture includes a fixing mechanism for fixing the PCB circuit board body and a testing device 7 disposed above the PCB circuit board body. The fixing mechanism includes two parallel and horizontally arranged rotating rods 3, an elastic component disposed on the side of the rotating rod 3 adjacent to the other rotating rod 3, two parallel conveyor belts 8 disposed on the rotating rods 3 and connected to the elastic component, with the conveying direction parallel to the length direction of the rotating rods 3, a driving component disposed on the rotating rods 3 and controlling the conveying direction of the adjacent conveying surfaces of the two conveyor belts 8 to be the same, two vertical rods 2 disposed in the vertical direction and rotatably connected at their top ends to the middle of the side of the two rotating rods 3 away from each other, and a rotating component disposed at the top end of the vertical rods 2 and controlling the two rotating rods 3 to rotate around the middle position.

[0023] The elastic component controls the two conveyor belts to move closer together on their adjacent conveyor surfaces.

[0024] like Figs. 1-5 As shown, the PCB circuit board is directly moved by the existing conveying device to the position between the two conveyor belts 8 on one side of the two rotating rods 3. Then, the drive component drives the two conveyor belts 8 on the rotating rods 3 to rotate in opposite directions. During the process of the PCB circuit board moving to the position between the two conveyor belts 8, the two conveyor belts 8 on the same rotating rod 3 are controlled to move closer to each other by the elastic component, realizing the clamping and conveying function of the PCB circuit board. This ensures that the PCB circuit board is stably conveyed to the position between the two rotating rods 3. Then, the detection device set above the PCB circuit board facilitates the detection of the top end face of the PCB circuit board. After the detection is completed, the rotating component drives the two rotating rods 3 to rotate the PCB circuit board synchronously by 180°, which facilitates the detection device to detect the other end face of the PCB circuit board. This allows for convenient and comprehensive detection of the PCB circuit board and improves the detection efficiency of the PCB circuit board.

[0025] The rotating rod 3 has symmetrical clamping grooves 12 on one side of the rotating rod 3. The driving assembly includes a slider at both ends of each clamping groove 12, a rotating column at the end face of the slider away from the clamping groove 12, and a conveying motor 15 on the rotating rod 3 that controls the rotating columns in different clamping grooves 12 to rotate in opposite directions. Two conveyor belts 8 are respectively fitted onto two rotating columns located in different clamping grooves 12.

[0026] The elastic component includes a slide rod 13 arranged vertically and having one end movably passing through the clamping groove 12, and a clamping spring 14 movably sleeved on the slide rod 13 and having both ends connected to the groove wall of the clamping groove 12 and the slider, respectively. The slide rod 13 passes through the clamping groove 12 and has one end fixedly connected to the end face of the slider. The conveying motor 15 is fixedly installed on the end face of the slide rod 13 away from the slider and drives the rotating column to rotate through the transmission structure.

[0027] like Figs. 1-3 As shown, two conveyor belts 8 are respectively fitted onto two sliders in two clamping grooves 12, and a clamping spring 14 is fitted onto a sliding rod 13 on the slider. When the clamping spring is in a compressed state, it pushes the conveyor belt 8 fitted onto the rotating column on the two sliders to move towards the other conveyor belt 8, which facilitates the clamping and conveying of PCB circuit boards of different thicknesses and ensures the stability of the clamping and conveying of PCB circuit boards.

[0028] PCB circuit board standard thicknesses come in various specifications, including 0.70mm, 0.80mm, 0.95mm, 1.00mm, 1.27mm, 1.50mm, 1.60mm, 2.00mm, 2.40mm, 3.00mm, 3.20mm, 3.50mm, 4.00mm, and 6.40mm. Among these, 1.6mm is the most common thickness and is suitable for a wide range of electronic products, such as computer motherboards and home appliances.

[0029] The bottom ends of the two vertical rods 2 are vertically fixed on the support platform 1. The rotating assembly includes a linkage gear 17 fixedly installed at the middle position of one end of the two rotating rods 3 away from each other and respectively passing through the side of the adjacent side of the two vertical rods 2, a lifting rack 16 passing through the vertical rods 2 and meshing with the linkage gear 17, and a lifting component installed in the support platform 1 to control the lifting rack 16 to move up and down in the vertical direction. The lifting component drives the lifting rack 16 to move up and down in the vertical direction, and drives the linkage gear 17 to reciprocate 180° around the axis.

[0030] The lifting component includes a lifting cylinder 11 installed in the support platform 1 and arranged vertically, a second lifting rod 10 arranged horizontally on the output end of the lifting cylinder 11, and two first lifting rods 9 vertically fixed at both ends of the top side of the second lifting rod 10. The top ends of the two first lifting rods 9 are respectively fixedly connected to the bottom of different lifting racks 16.

[0031] like Figs. 1-4 As shown, after the end face of one end of the PCB circuit board is inspected, the second lifting rod 10 is moved upward by the lifting cylinder 11. At this time, the first lifting rod 9 set on the second lifting rod 10 drives the lifting rack 16 to move upward. The lifting rack 16 meshes with the linkage gear 17, which can drive the rotating rod 3 to rotate 180° around the axis of the linkage gear 17. After the PCB circuit board is inspected, the PCB circuit board is fully inspected.

[0032] The detection device 7 is detachably installed on the support platform 1 via a limiting component. The limiting component includes two vertically arranged fixing rods 4 with their bottom ends fixed to the top ends of different vertical rods 2, a horizontal rod 5 which is horizontally fixed on the two fixing rods 4 and has its ends fixedly connected to the top ends of different fixing rods 4, a fixing block 6 which is fixed at the middle position of the bottom end of the horizontal rod 5, and a limiting element that is provided on the bottom end face of the fixing block 6 and can detachably install the detection device 7.

[0033] The limiting components include two positioning blocks 22 that are parallel to each other and arranged vertically and slidably disposed on the bottom end face of the fixing block 6; a bidirectional lead screw 19 that passes through a fixing groove 18 on the bottom end face of the fixing block 6; a threaded block 20 that is threadedly connected to the two ends of the bidirectional lead screw 19 and fixedly connected to the top of the different positioning blocks 22 at the bottom end; and a control block 21 disposed on the side of the fixing block 6 and controlling the rotation of the bidirectional lead screw 19. The bottom of the adjacent end of the two positioning blocks 22 is provided with a protrusion.

[0034] like Fig. 5As shown, the detection device 7 can be equipped with a detection camera. When replacing the detection device 7, the control block 21 first drives the bidirectional lead screw 19 to rotate, which in turn drives the two threaded blocks 20 on both ends of the bidirectional lead screw 19 to move away from each other, and thus drives the two positioning blocks 22 to move away from each other. This facilitates the disassembly of the detection device 7 located between the two positioning blocks 22. The detection device 7, after maintenance or replacement, is then inserted between the two positioning blocks 22, with the detection end of the detection device 7 located at the bottom and its end face located on the protrusions provided on the two positioning blocks 22. Then, the control block 21 drives the bidirectional lead screw 19 to rotate, which in turn drives the two positioning blocks 22 to move closer together, clamping and fixing the detection device 7. The protrusions provided on the two positioning blocks 22 also provide support for the detection device 7, thus facilitating the stable fixing of the detection device 7 and improving the efficiency of disassembly and installation of the detection device 7.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PCB circuit board fixing and testing fixture, comprising a fixing mechanism for fixing the PCB circuit board body and a testing device (7) disposed above the PCB circuit board body, characterized in that, The fixing mechanism includes two parallel and transversely arranged rotating rods (3), an elastic component arranged on the side of the rotating rod (3) adjacent to the other rotating rod (3), two parallel rotating rods (8) arranged on the rotating rods (3) and connected to the elastic component, with the conveying direction parallel to the length direction of the rotating rods (3), a drive component arranged on the rotating rods (3) and controlling the conveying direction of the adjacent conveying surfaces of the two conveyor belts (8) to be the same, two vertical rods (2) arranged in the vertical direction and rotatably connected at their top ends to the middle of the side of the two rotating rods (3) away from each other, and a rotating component arranged at the top end of the vertical rods (2) and controlling the two rotating rods (3) to rotate around the middle position; The elastic component controls the two conveyor belts (8) to move closer to each other.

2. The PCB circuit board fixing and testing fixture according to claim 1, characterized in that: The rotating rod (3) has symmetrical clamping grooves (12) on one side of the rotating rod (3) adjacent to another rotating rod (3). The driving assembly includes a slider at both ends of each clamping groove (12), a rotating column at the end face of the slider away from the clamping groove (12), and a conveyor motor (15) on the rotating rod (3) that controls the rotating columns in different clamping grooves (12) to rotate in opposite directions. Two conveyor belts (8) are respectively fitted onto two rotating columns located in different clamping grooves (12).

3. The PCB circuit board fixing and testing fixture according to claim 2, characterized in that: The elastic component includes a slide rod (13) arranged vertically and one end of which is movably inserted into the clamping groove (12), and a clamping spring (14) movably sleeved on the slide rod (13) and connected at both ends to the groove wall of the clamping groove (12) and the slider, respectively. The slide rod (13) is inserted into the clamping groove (12) and one end is fixedly connected to the end face of the slider. The conveying motor (15) is fixedly installed on the end face of the slide rod (13) away from the slider and drives the rotating column to rotate through the transmission structure.

4. The PCB circuit board fixing and testing fixture according to claim 3, characterized in that: The bottom ends of the two vertical rods (2) are fixedly mounted on the support platform (1). The rotating assembly includes a linkage gear (17) fixedly mounted at the middle position of one end of the two rotating rods (3) and respectively passing through the side of the adjacent side of the two vertical rods (2), a lifting rack (16) passing through the vertical rod (2) and meshing with the linkage gear (17), and a lifting component set in the support platform (1) to control the lifting rack (16) to move up and down in the vertical direction. The lifting component drives the lifting rack (16) to move up and down in the vertical direction, and drives the linkage gear (17) to rotate 180° around the axis.

5. The PCB circuit board fixing and testing fixture according to claim 4, characterized in that: The detection device (7) is detachably installed above the support platform (1) via a limiting component. The limiting component includes two fixed rods (4) arranged vertically and whose bottom ends are respectively fixed to the top ends of different vertical rods (2), a horizontal rod (5) fixed horizontally on the two fixed rods (4) and whose two ends are respectively fixed to the top ends of different fixed rods (4), a fixed block (6) fixedly installed at the middle position of the bottom end of the horizontal rod (5), and a limiting component set on the bottom end face of the fixed block (6) and which can detachably install the detection device (7).

6. The PCB circuit board fixing and testing fixture according to claim 5, characterized in that: The limiting component includes two positioning blocks (22) that are parallel to each other and arranged vertically and slidably arranged on the bottom end face of the fixed block (6), a bidirectional lead screw (19) that passes through a fixing groove (18) on the bottom end face of the fixed block (6), a threaded block (20) that is threadedly connected to the two ends of the bidirectional lead screw (19) and fixedly connected to the top of the different positioning blocks (22) at the bottom end, and a control block (21) that is arranged on the side of the fixed block (6) and controls the bidirectional lead screw (19) to rotate. The bottom of the two positioning blocks (22) is provided with a protrusion.

7. The PCB circuit board fixing and testing fixture according to claim 6, characterized in that: The lifting component includes a lifting cylinder (11) installed in the support platform (1) and arranged vertically, a second lifting rod (10) arranged horizontally on the output end of the lifting cylinder (11), and two first lifting rods (9) vertically fixed at both ends of the top side of the second lifting rod (10). The top ends of the two first lifting rods (9) are respectively fixedly connected to the bottom of different lifting racks (16).

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