Circuit board test fixture

Abstract

The utility model discloses a circuit board test fixture, which belongs to the field of circuit boards, and comprises a square supporting box, the left side surface of the square supporting box is fixedly connected with a square box, the inner bottom wall of the square box is fixedly connected with a driving motor, and the inner wall of the square supporting box is fixedly connected with two circular supporting rods. The outer surfaces of the two circular supporting rods are jointly connected with a sliding supporting piece in a sliding mode, two transmission supporting columns are fixedly connected to the upper surface of the sliding supporting piece, and the top end of each transmission supporting column penetrates through the supporting square box and extends to the position above the supporting square box. Through cooperative use of a circular supporting rod, a transmission supporting column, a sliding supporting piece, a threaded lead screw and a threaded ring, the threaded lead screw can rotate to drive a connecting piece, the sliding supporting piece and the transmission supporting column to move left and right, then a pressed circuit board can be driven to move, the circuit board is prevented from being damaged, and the protection effect on the circuit board is improved; and the effect of moving to different positions for testing is achieved.

Description

Technical Field

[0001] The utility model relates to the field of circuit boards, in particular to a circuit board testing fixture. Background Art

[0002] Circuit boards are electronic devices. The names of circuit boards include: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, circuit boards, PCB boards, aluminum substrates, high-frequency boards, thick copper boards, impedance boards, PCBs, ultra-thin circuit boards, ultra-thin circuit boards, printed (copper etching technology) circuit boards, etc. Circuit boards miniaturize and visualize circuits, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] During the production process of circuit boards, semi-finished and finished circuit boards need to be tested, and a test fixture will be used. A Chinese patent with announcement number CN219915849U discloses a PCB circuit board test fixture, including a support table, a placement seat is arranged on the support table, and an elastic support structure is arranged on the placement seat. The utility model can improve the safety protection during PCB circuit board detection and avoid the rigid docking between the detection probe and the solder pins on the PCB circuit board during the detection process. However, in the above patent, the position of the circuit board is fixed after it is placed, but during the test process, the circuit board needs to be moved to different positions for operation, and the circuit board needs to be disassembled again. The circuit board is easily damaged when it is disassembled and re-clamped, and it is inconvenient to adjust its position, which reduces the test effect. Therefore, a technician in this field provides a circuit board test fixture to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit board testing fixture to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circuit board testing fixture comprises a supporting square box, a square box is fixedly connected to the left side surface of the supporting square box, a driving motor is fixedly connected to the inner bottom wall of the square box, two circular support rods are fixedly connected to the inner wall of the supporting square box, the outer surfaces of the two circular support rods are slidably connected to a sliding support, the upper surface of the sliding support is fixedly connected to two transmission pillars, the top of each transmission pillar passes through the supporting square box and extends to the top of the supporting square box, the tops of the two transmission pillars are fixedly connected to a clamping mechanism, the output end of the driving motor passes through the supporting square box and is fixedly connected to a threaded screw, the outer surface of the threaded screw is threadedly connected to a screw ring, the outer surface of the screw ring is fixedly connected to a connecting piece, and the outer surface of the connecting piece is fixedly connected to the outer surface of the sliding support.

[0007] As a further solution of the utility model: a controller is fixedly installed on the front side of the supporting square box, and the controller is electrically connected to the driving motor through a wire.

[0008] As a further solution of the utility model: the clamping mechanism includes a test bracket, the inner bottom wall of the test bracket is fixedly connected to a placing table, two electric push rods are fixedly installed on the upper surface of the test bracket, the output end of each of the electric push rods passes through the test bracket and is fixedly connected to a square plate, and a clamping strip is fixedly installed on the bottom surface of each of the square plates.

[0009] As a further solution of the utility model: an insulating pad is fixedly installed on the upper surface of the placement table, and a protective pad is fixedly connected to the bottom surface of each of the compression strips.

[0010] As a further solution of the utility model: a sliding groove is provided on the inner wall of the test bracket, a sliding block is slidably connected inside the sliding groove, and the outer surface of the sliding block is fixedly connected to the outer surfaces of the two square plates.

[0011] As a further solution of the utility model: a plurality of supporting pads are fixedly connected to the bottom surface of the supporting square box, and a plurality of heat dissipation holes are opened on the outer surface of the square box.

[0012] As a further solution of the utility model: the upper surface of the supporting square box is provided with two square openings, and the size of the square openings is adapted to the size of the transmission support.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The circuit board test fixture, through the provided electric push rod, clamping strip, protective pad and square plate, can cooperate with the placement table to clamp and fix the circuit board to be tested, so as to prevent the circuit board from being lateralized during the test, and through the coordinated use of the provided circular support rod, transmission support pillar, sliding support, threaded screw and screw ring, the rotation of the threaded screw can be used to drive the connecting piece, sliding support and transmission support pillar to move left and right, and then the clamped circuit board can be driven to move, so that the need for frequent disassembly of the circuit board during the test is avoided, damage to the circuit board is prevented, the protection effect of the circuit board is improved, and the effect of moving to different positions for testing is achieved, which has the advantage of more convenient position adjustment, more convenient adjustment operation of the clamped circuit board, and better test use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a circuit board test fixture;

[0016] Figure 2 It is a schematic diagram of the front cross-section structure of a supporting square box in a circuit board test fixture;

[0017] Figure 3 It is a side cross-sectional schematic diagram of a supporting square box in a circuit board test fixture;

[0018] Figure 4 The figure is a three-dimensional structural schematic diagram of a clamping mechanism in a circuit board test fixture.

[0019] In the figure: 1. Support square box; 2. Square box; 3. Controller; 4. Support pad; 5. Clamping mechanism; 6. Round support rod; 7. Sliding support; 8. Transmission support; 9. Driving motor; 10. Threaded screw; 11. Screw ring; 12. Connector; 13. Square opening; 14. Test bracket; 15. Placement table; 16. Insulating pad; 17. Electric push rod; 18. Pressing strip; 19. Protective pad; 20. Square plate; 21. Sliding groove; 22. Sliding block. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] See also Figures 1 to 4In an embodiment of the utility model, a circuit board test fixture includes a supporting square box 1, a square box 2 is fixedly connected to the left side of the supporting square box 1, a driving motor 9 is fixedly connected to the inner bottom wall of the square box 2, two circular support rods 6 are fixedly connected to the inner wall of the supporting square box 1, and a sliding support 7 is slidably connected to the outer surfaces of the two circular support rods 6. The upper surface of the sliding support 7 is fixedly connected to two transmission pillars 8, and the top of each transmission pillar 8 passes through the supporting square box 1 and extends to the top of the supporting square box 1. The tops of the two transmission pillars 8 are fixedly connected to a clamping mechanism 5. The output end of the driving motor 9 passes through the supporting square box 1 and is fixedly connected to a threaded screw 10. The outer surface of the threaded screw 10 is threadedly connected to a screw ring 11. The outer surface of the screw ring 11 is fixedly connected to a connecting piece 12, and the outer surface of the connecting piece 12 is fixedly connected to the outer surface of the sliding support 7.

[0023] A controller 3 is fixedly installed on the front of the supporting square box 1, and the controller 3 is electrically connected to the driving motor 9 through a wire, which makes it more convenient for the operator to operate when in use. The clamping mechanism 5 includes a test bracket 14, and the inner bottom wall of the test bracket 14 is fixedly connected to a placement table 15. Two electric push rods 17 are fixedly installed on the upper surface of the test bracket 14. The output end of each electric push rod 17 passes through the test bracket 14 and is fixedly connected to a square plate 20. A clamping strip 18 is fixedly installed on the bottom surface of each square plate 20. The two electric push rods 17 can be started and the square plate 20 and the clamping strip 18 can be pushed downward at the same time, so that they move to clamp and limit the circuit board to prevent lateral deviation when testing the circuit board. An insulating pad 16 is fixedly installed on the upper surface of the placement table 15, and a protective pad 19 is fixedly connected to the bottom surface of each clamping strip 18, which can protect the clamped circuit board and avoid damage to the circuit board, and has the advantage of higher safety.

[0024] A sliding groove 21 is provided on the inner wall of the test bracket 14, and a sliding block 22 is slidably connected inside the sliding groove 21. The outer surface of the sliding block 22 is fixedly connected to the outer surfaces of the two square plates 20, so that the square plates 20 can drive the sliding block 22 to slide in the sliding groove 21 when moving, thereby avoiding jamming when moving and improving the stability of clamping the circuit board. A plurality of supporting pads 4 are fixedly connected to the bottom surface of the supporting square box 1, and a plurality of heat dissipation holes are provided on the outer surface of the square box 2. The provision of the supporting pads 4 can make the device more stable when in use. Two square openings 13 are provided on the upper surface of the supporting square box 1, and the size of the square openings 13 is adapted to the size of the transmission pillar 8, so that the transmission pillar 8 can be smoother when adjusting the position, thereby avoiding jamming when moving and improving the smoothness of the adjustment position movement.

[0025] The working principle of the utility model is: when in use, the relevant power supply is turned on, the circuit board to be tested is placed on the placement table 15 and the insulating pad 16, and the two electric push rods 17 are started to push the square plate 20 and the clamping strip 18 to move at the same time, so that the clamping strip 18 and the protective pad 19 are moved to clamp and fix the circuit board, and then it can be tested. When it needs to be moved to a different position, the drive motor 9 is started to drive the threaded screw 10 to rotate, so that the threaded screw 10 drives the screw ring 11 and the connecting piece 12 to move when it rotates, and then the connecting piece 12 can drive the sliding support 7 to slide on the circular support rod 6 when it moves, and then the clamping mechanism 5 and the clamped circuit board can be driven to move through the transmission support 8, so that the clamped circuit board can be moved to different positions for testing.

[0026] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A circuit board test fixture, comprising a supporting box (1), characterized in that: The left side of the supporting square box (1) is fixedly connected to a square box (2), the inner bottom wall of the square box (2) is fixedly connected to a driving motor (9), the inner wall of the supporting square box (1) is fixedly connected to two circular support rods (6), the outer surfaces of the two circular support rods (6) are slidably connected to a sliding support (7), the upper surface of the sliding support (7) is fixedly connected to two transmission pillars (8), the top of each transmission pillar (8) passes through the supporting square box (1) and extends to the top of the supporting square box (1), the tops of the two transmission pillars (8) are fixedly connected to a clamping mechanism (5), the output end of the driving motor (9) passes through the supporting square box (1) and is fixedly connected to a threaded screw (10), the outer surface of the threaded screw (10) is threadedly connected to a screw ring (11), the outer surface of the screw ring (11) is fixedly connected to a connecting piece (12), and the outer surface of the connecting piece (12) is fixedly connected to the outer surface of the sliding support (7).

2. A circuit board test fixture according to claim 1, characterized in that: A controller (3) is fixedly mounted on the front of the supporting box (1), and the controller (3) is electrically connected to the driving motor (9) via a wire.

3. A circuit board test fixture according to claim 1, characterized in that: The clamping mechanism (5) comprises a test bracket (14), the inner bottom wall of the test bracket (14) is fixedly connected to a placement table (15), the upper surface of the test bracket (14) is fixedly mounted with two electric push rods (17), the output end of each electric push rod (17) passes through the test bracket (14) and is fixedly connected to a square plate (20), and the bottom surface of each square plate (20) is fixedly mounted with a clamping strip (18).

4. A circuit board test fixture according to claim 3, characterized in that: An insulating pad (16) is fixedly mounted on the upper surface of the placement platform (15), and a protective pad (19) is fixedly connected to the bottom surface of each of the pressing strips (18).

5. A circuit board test fixture according to claim 3, characterized in that: The inner wall of the test bracket (14) is provided with a sliding groove (21), the interior of the sliding groove (21) is slidably connected with a sliding block (22), and the outer surface of the sliding block (22) is fixedly connected to the outer surfaces of the two square plates (20).

6. A circuit board test fixture according to claim 1, characterized in that: A plurality of supporting pads (4) are fixedly connected to the bottom surface of the supporting square box (1), and a plurality of heat dissipation holes are provided on the outer surface of the square box (2).

7. A circuit board test fixture according to claim 1, characterized in that: The upper surface of the supporting square box (1) is provided with two square openings (13), and the size of the square openings (13) is adapted to the size of the transmission support pillar (8).

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