Jig for detecting circuit board

Abstract

The utility model relates to the technical field of detection jigs, and discloses a circuit board detection jig, which comprises a base and a mounting plate, a sliding plate is mounted on the mounting plate in a sliding manner, and a pressing plate is fixedly mounted on the sliding plate; a fixed frame is fixedly installed on the base, a sliding frame is slidably installed on the fixed frame, two lifting bins are slidably installed on the sliding frame through reset assemblies, and bearing plates are fixedly installed in the lifting bins; the fixing frame is provided with an exposing groove allowing the lifting bin to move. According to the circuit board feeding and discharging device, feeding and discharging of the circuit board can be carried out at the other position while one circuit board is detected, the operation space for taking and placing is larger, feeding and discharging are facilitated, meanwhile, the detection speed can be increased, and the detection efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of detection fixtures, in particular to a fixture for PCB board detection. Background Art

[0002] A PCB board is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. It needs to be functionally detected before use. Only a PCB board that passes the detection is a real finished PCB board and can be used.

[0003] When detecting a PCB board, a fixture is needed for assistance. A patent with the publication number of CN213517245U discloses a fixture for PCB board detection, which includes a bottom plate. In the middle of the upper end surface of the bottom plate, there is a detection table. Behind the detection table on the upper end surface of the bottom plate, there is a main rod. In front of the main rod, there is an adjustable detection board. At the lower end surface of the detection board, there is a detection rod. On both sides of the detection table on the upper end surface of the bottom plate, there are rectangular card slots. In the rectangular card slots, there are adjustable rectangular vertical rods. The top of the rectangular vertical rod extends out of the rectangular card slot and is provided with a cross plate. On the inner end surface of the cross plate, there is a pressure straight plate. At the lower end surface of the pressure straight plate, there is a sponge cushion layer.

[0004] However, the above device has the following problems when in use;

[0005] When in use, it relies on manual feeding and unloading activities at the same position repeatedly, resulting in an intermittent detection process, greatly limiting the detection efficiency and being unfavorable for the smooth progress of the overall production process. Summary of the Utility Model

[0006] The purpose of the utility model is to solve the problems existing in the prior art, and a fixture for PCB board detection is proposed, which can perform the feeding and unloading activities of a circuit board at another position while detecting a circuit board. The operation space for picking up and placing is larger. While facilitating feeding and unloading, it can improve the detection speed and make the detection efficiency higher.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A fixture for PCB board detection includes a base and a mounting plate. A sliding plate is slidably mounted on the mounting plate, and a pressing plate is fixedly mounted on the sliding plate.

[0009] A fixing frame is fixedly mounted on the base. A sliding frame is slidably mounted on the fixing frame. Two lifting bins are slidably mounted on the sliding frame through a reset component. A receiving plate is fixedly mounted inside the lifting bin.

[0010] An exposing slot for the movement of the lifting bin is opened on the fixing frame.

[0011] Preferably, the reset assembly includes a fixed cylinder and a sliding rod, the fixed cylinder is fixedly mounted on the sliding frame, one end of the sliding rod facing away from the fixed cylinder is fixedly mounted on the lifting bin, the sliding rod can slide inside the fixed cylinder, a reset spring is fixedly mounted inside the fixed cylinder, and the other end of the reset spring is fixedly mounted on the sliding rod.

[0012] Preferably, sliding blocks are fixedly mounted on both sides of the sliding frame, and the fixed frame is provided with sliding grooves for the sliding blocks to slide.

[0013] Preferably, two positioning holes are provided on the sliding block on one side, and a positioning component matched with the positioning holes is provided on the fixing frame.

[0014] Preferably, the positioning assembly includes a positioning rod, which is slidably mounted on the fixing frame, a pulling block is fixedly mounted on the other end of the positioning rod, a compression spring is fixedly mounted on the pulling block, and the other end of the compression spring is fixedly mounted on the fixing frame.

[0015] Preferably, handles are fixedly mounted on both sides of the sliding frame.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model is provided with a base, a pressure plate, a fixing frame, a positioning assembly, a sliding frame, an exposure groove, a lifting bin, a receiving plate, a positioning hole and a reset assembly. By providing two lifting bins for placing circuit boards, it is possible to carry out loading and unloading activities of circuit boards at another position while testing one circuit board. A larger operating space is available for taking and placing, which is convenient for loading and unloading, and can improve the detection speed, thereby making the detection efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a circuit board detection fixture proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the position of the exposed groove of a circuit board detection fixture proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the sliding principle of a movable frame of a circuit board detection jig proposed by the utility model;

[0021] Figure 4 This is a schematic diagram of the installation position of a reset component of a circuit board detection fixture proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a circuit board detection fixture reset component proposed by the utility model;

[0023] Figure 6 Schematic structural diagram of a fixture positioning component for circuit board detection proposed by the present utility model.

[0024] In the figure: 1, base; 2, mounting plate; 3, sliding plate; 4, pressing plate; 5, fixing frame; 6, positioning component; 7, sliding frame; 8, handle; 9, exposed groove; 10, sliding groove; 11, lifting bin; 12, bearing plate; 13, slider; 14, positioning hole; 15, reset component; 16, fixing cylinder; 17, reset spring; 18, sliding rod; 19, clamping rod; 20, extrusion spring; 21, pulling block. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Please refer to Figures 1 to 6 , a fixture for circuit board detection, including a base 1 and a mounting plate 2. A sliding plate 3 is slidably mounted on the mounting plate 2, and a pressing plate 4 is fixedly mounted on the sliding plate 3. Driven by a cylinder, by moving the output shaft of the cylinder, the pressing plate 4 can be lowered, and then the circuit board can be lowered to contact the pin bed to realize the detection activity. Preferably, a pressing rod should be provided on the pressing plate 4, and the pressing rod can contact the blank part of the circuit board to realize the pressing activity of the circuit board.

[0027] A fixing frame 5 is fixedly mounted on the base 1, a sliding frame 7 is slidably mounted on the fixing frame 5, and two lifting bins 11 are slidably mounted on the sliding frame 7 through a reset component 15. The lifting bins 11 can move up and down on the sliding frame 7.

[0028] A bearing plate 12 is fixedly mounted inside the lifting bin 11, and the bearing plate 12 is used to position the circuit board. Preferably, positioning pins and positioning columns can be provided and mounted on the bearing plate 12 to further cooperate with the positioning activity.

[0029] When in use, by making the pressing plate 4 and the structures thereon contact the circuit board on the bearing plate 12, the circuit board can be moved downward, and then the lifting bin 11 can smoothly move downward.

[0030] An exposed groove 9 for the movement of the lifting bin 11 is provided on the fixing frame 5. The exposed groove 9 is directly below the pressing plate 4, and there is a pin bed at the bottom of the exposed groove 9. Pressing down the pressing plate 4 can make the circuit board contact the pin bed, thereby realizing the detection activity.

[0031] The reset component 15 includes a fixed cylinder 16 and a sliding rod 18. The fixed cylinder 16 is fixedly installed on the sliding frame 7, and one end of the sliding rod 18 away from the fixed cylinder 16 is fixedly installed on the lifting bin 11.

[0032] The sliding rod 18 can slide inside the fixed cylinder 16.

[0033] A reset spring 17 is fixedly installed inside the fixed cylinder 16, and the other end of the reset spring 17 is fixedly installed on the sliding rod 18.

[0034] When no external force is applied, due to the elastic force of the reset spring 17, the sliding rod 18 can support the lifting bin 11, making the height of the lifting bin 11 higher than the upper surface of the exposure slot 9, so that the sliding frame 7 can move smoothly on the home position 5 without being blocked.

[0035] When the pressing plate 4 presses down on the circuit board, the lifting bin 11 receives a downward force, the sliding rod 18 moves into the fixed cylinder 16, and the bottom of the lifting bin 11 leaks out through the exposure slot 9 smoothly, so that the circuit board contacts the pin bed to complete the detection activity.

[0036] Sliding blocks 13 are fixedly installed on both sides of the sliding frame 7, and sliding grooves 10 for the sliding blocks 13 to slide are provided on the fixed frame 5. The cooperation between the sliding grooves 10 and the sliding blocks 13 can make the sliding of the sliding frame 7 smoother.

[0037] Two positioning holes 14 are provided on one of the sliding blocks 13, and a positioning component 6 adapted to the positioning holes 14 is provided on the fixed frame 5.

[0038] By making the positioning component 6 cooperate with different positioning holes 14, different lifting bins 11 can be smoothly located directly above the exposure slot 9 (i.e., the pin bed), so as to ensure the accurate alignment of the test points and the detection effect.

[0039] The positioning component 6 includes a positioning rod 19. The positioning rod 19 is slidably installed on the fixed frame 5. A pulling block 21 is fixedly installed at the other end of the positioning rod 19, and a compression spring 20 is fixedly installed on the pulling block 21. The other end of the compression spring 20 is fixedly installed on the fixed frame 5.

[0040] When the sliding frame 7 moves, due to the existence of the sliding grooves 10 and the sliding blocks 13, the sliding frame 7 can slide smoothly. When the positioning hole 14 moves to the position of the positioning rod 19, because there is no longer any obstruction, the positioning rod 19 can smoothly enter the positioning hole 14, so that the sliding frame 7 cannot move, and the positioning activity can be successfully achieved.

[0041] After the detection is completed, by pulling the pulling block 21, the positioning rod 19 can be moved out of the positioning hole 14, and then the sliding frame 7 can move smoothly, so that the positioning rod 19 can align with the next positioning hole 14.

[0042] Handles 8 are fixedly installed on both sides of the sliding frame 7. The presence of the handles 8 facilitates the operator to push the sliding frame 7 to move, with higher efficiency.

[0043] The working process of the present utility model; for the convenience of description, the base 1 is divided into three regions, named A, B, and C from left to right, and the two lifting bins 11 are named X and Y from left to right.

[0044] In the initial state, X is on A and Y is on B. At this time, there are circuit boards on both X and Y. By moving the output shaft of the cylinder and making the pressing plate 4 and its structure contact the circuit board on the receiving plate 12, the circuit board can be moved downward and contact the needle bed, thereby realizing the detection of the circuit board on Y.

[0045] After the circuit board on Y is detected, by pulling the pulling block 21, the positioning rod 19 can be moved out of the positioning hole 14. Through the handle 8, the sliding frame 7 can move smoothly. When the positioning hole 14 moves to the position of the positioning rod 19, since there is no obstruction, the positioning rod 19 can smoothly enter the positioning hole 14, so that the sliding frame 7 cannot move. Due to the positioning component 6, at this time, X and Y are respectively located at positions B and C, and the circuit board on X can be detected. At this time, the operator can manually unload the detected circuit board on Y and load the circuit board to be detected on Y at position C.

[0046] After that, by making it move, X and Y can be respectively located at positions A and B, so that the operator can manually unload the detected circuit board on X and load the circuit board to be detected on X at position A.

[0047] The operating space is larger, which is convenient for loading and unloading. At the same time, while detecting, loading and unloading can be carried out at another position, which is convenient for improving the detection speed and has higher efficiency.

[0048] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fixture for circuit board detection, comprising a base (1) and a mounting plate (2). A sliding plate (3) is slidably mounted on the mounting plate (2), and a pressing plate (4) is fixedly mounted on the sliding plate (3). It is characterized in that, A fixed frame (5) is fixedly mounted on the base (1), a sliding frame (7) is slidably mounted on the fixed frame (5), two lifting bins (11) are slidably mounted on the sliding frame (7) via a reset assembly (15), and a receiving plate (12) is fixedly mounted inside the lifting bin (11); The fixed frame (5) is provided with an exposure groove (9) for the lifting bin (11) to move.

2. The fixture for circuit board detection according to claim 1, wherein, The reset assembly (15) comprises a fixed cylinder (16) and a sliding rod (18), wherein the fixed cylinder (16) is fixedly mounted on the sliding frame (7), and one end of the sliding rod (18) which is away from the fixed cylinder (16) is fixedly mounted on the lifting chamber (11), and the sliding rod (18) can slide inside the fixed cylinder (16), and a reset spring (17) is fixedly mounted inside the fixed cylinder (16), and the other end of the reset spring (17) is fixedly mounted on the sliding rod (18).

3. The fixture for circuit board detection according to claim 1 or 2, characterized in that, Slide blocks (13) are fixedly mounted on both sides of the sliding frame (7), and a slide groove (10) for the slide blocks (13) to slide is provided on the fixed frame (5).

4. The fixture for circuit board detection according to claim 3, characterized in that, Two positioning holes (14) are provided on the sliding block (13) on one side, and a positioning assembly (6) adapted to the positioning holes (14) is provided on the fixing frame (5).

5. The fixture for circuit board detection according to claim 4, characterized in that, The positioning assembly (6) comprises a positioning rod (19), the positioning rod (19) is slidably mounted on the fixing frame (5), a pulling block (21) is fixedly mounted on the other end of the positioning rod (19), a pressing spring (20) is fixedly mounted on the pulling block (21), and the other end of the pressing spring (20) is fixedly mounted on the fixing frame (5).

6. A fixture for circuit board detection according to claim 1, 2, 4 or 5, characterized in that, Handles (8) are fixedly mounted on both sides of the sliding frame (7).

7. The fixture for circuit board detection according to claim 3, wherein Handles (8) are fixedly mounted on both sides of the sliding frame (7).

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