Jig for detecting PCB (Printed Circuit Board)

Abstract

The utility model provides a PCB circuit board detection tool comprising a pedestal, four corners of the bottom of the pedestal are all provided with cushion blocks, one side of the top of the pedestal is provided with a first limiting mechanism, and the first limiting mechanism comprises a fixing rod and a pressing plate. The position of the adjusting plate can be adjusted through the rotary knob, the screw rod and the sliding groove, the fixed plate and the adjusting plate can conveniently clamp PCBs with different thicknesses through the step, one end of each PCB is conveniently limited through a pressing plate, a movable rod, a fixed rod and other first limiting mechanisms, the stability of the PCBs can be improved, and practicability is high; and the base can be fixed through adjusting mechanisms such as a rotary table, a sliding rod and a piston plate, and the stability of the jig is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit board detection jigs, in particular to a PCB circuit board detection jig. Background Art

[0002] When testing the PCB circuit board, a fixture is needed to fix the PCB circuit board.

[0003] The Chinese utility model patent with publication number CN214174556U proposes a PCB circuit board detection fixture, including a detection table, a non-slip support leg is arranged below the detection table, and the non-slip support leg is connected to the detection table by screws, a first fixed block and a second fixed block are arranged above the detection table, and the first fixed block is connected to the detection table by screws, an electric telescopic rod is arranged on one side of the first fixed block, and the electric telescopic rod is connected to the first fixed block by screws, and a guide hole is arranged inside the second fixed block.

[0004] The above scheme can clamp and fix the PCB circuit board between the first fixing block and the second fixing block by adjusting the second fixing block. However, an arc groove is provided on the opposite side of the first fixing block and the second fixing block, so that only PCB circuit boards of a certain thickness can be clamped. It is not convenient to clamp and fix thicker PCB circuit boards, and the practicality is low.

[0005] To this end, the utility model provides a PCB circuit board detection fixture. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a PCB circuit board detection fixture to solve the problems raised in the above-mentioned background technology. The fixed plate and the adjustment plate of the utility model are convenient for clamping PCB circuit boards of different thicknesses through steps, and the stability of the PCB circuit board is improved through the first limiting mechanism such as the pressure plate, and the utility model is highly practical.

[0007] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a PCB circuit board detection fixture, including a base, wherein pads are arranged at the four corners of the bottom of the base, and a first limiting mechanism is arranged on one side of the top of the base, the first limiting mechanism includes a fixing rod and a pressure plate, the fixing rod is symmetrically fixedly installed on one side of the top of the base, and a second limiting mechanism is arranged on the other side of the top of the base, the second limiting mechanism includes a fixing plate and an adjusting plate, and a PCB circuit board is clamped between the fixing plate and the adjusting plate.

[0008] Furthermore, the fixing plate is fixedly mounted on the top of the base corresponding to one side of the fixing rod, the tops of the fixing plate and the adjusting plate are provided with steps, and the PCB circuit board is mounted on the top of the steps.

[0009] Furthermore, the second limiting mechanism includes a slide groove, which is opened on the other side of the top of the base, and a screw is installed inside the slide groove for limiting rotation.

[0010] Furthermore, the shape of the adjustment plate is "T"-shaped, the bottom end of the adjustment plate is screwed onto the screw rod through a screw hole, and a knob is fixedly mounted on the outer end of the screw rod.

[0011] Furthermore, a movable rod is movably mounted on the top of the fixed rod via a torsion spring rotating shaft, and the number of the movable rod and the number of the fixed rod are both two.

[0012] Furthermore, both sides of the top of the pressing plate are rotatably connected to one end of the movable rod through a rotating shaft, and the pressing plate is arranged on the top of the fixed plate and the PCB circuit board.

[0013] Furthermore, a support rod is fixedly installed on the top of the cushion block, and the support rod is fixedly installed at the four corners of the bottom of the base, and an adjustment mechanism is arranged on one of the support rods.

[0014] Furthermore, the adjustment mechanism includes a turntable, which is threadedly mounted on a support rod, wherein a groove is provided at the bottom of one of the pads, a piston plate is movably mounted inside the groove via a sliding rod, the sliding rod is fixedly mounted on the top of the piston plate, an annular groove is provided at the bottom of the turntable, and the top end of the sliding rod is limitedly slidably mounted inside the annular groove.

[0015] The beneficial effects of the utility model are as follows: the utility model is a jig for detecting PCB circuit boards, which can adjust the position of the adjustment plate through a knob, a screw rod and a slide groove; the fixed plate and the adjustment plate are convenient for clamping PCB circuit boards of different thicknesses through steps; and the first limiting mechanism such as a pressure plate, a movable rod and a fixed rod is convenient for limiting one end of the PCB circuit board, which can improve the stability of the PCB circuit board and has high practicality; the base can be fixed through adjusting mechanisms such as a turntable, a slide rod and a piston plate, thereby improving the stability of the jig. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a PCB circuit board detection fixture of the utility model;

[0017] Figure 2 This is a cross-sectional view of a PCB circuit board detection fixture of the utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] In the figure: 1. base; 2. fixed plate; 3. slide groove; 4. adjustment plate; 5. PCB circuit board; 6. pressure plate; 7. fixed rod; 8. movable rod; 9. knob; 10. pad; 11. adjustment mechanism; 12. screw rod; 13. support rod; 14. turntable; 15. piston plate; 16. slide rod. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a PCB circuit board detection fixture, comprising a base 1, wherein pads 10 are arranged at the four corners of the bottom of the base 1, a first limiting mechanism is arranged on one side of the top of the base 1, the first limiting mechanism comprises a fixing rod 7 and a pressing plate 6, the fixing rod 7 is symmetrically fixedly installed on one side of the top of the base 1, a second limiting mechanism is arranged on the other side of the top of the base 1, the second limiting mechanism comprises a fixing plate 2 and an adjusting plate 4, a PCB circuit board 5 is clamped between the fixing plate 2 and the adjusting plate 4, and through the cooperation of the first limiting mechanism and the second limiting mechanism, PCB circuit boards 5 of different thicknesses can be limited, and the stability of the PCB circuit board 5 can be improved.

[0022] In this embodiment, the fixing plate 2 is fixedly mounted on one side of the fixing rod 7 corresponding to the top of the base 1, the tops of the fixing plate 2 and the adjusting plate 4 are provided with steps, the PCB circuit board 5 is installed on the top of the steps, the second limiting mechanism includes a slide groove 3, the slide groove 3 is opened on the other side of the top of the base 1, the internal limiting rotation of the slide groove 3 is installed with a screw rod 12, the shape of the adjusting plate 4 is "T" type, the bottom end of the adjusting plate 4 is screwed on the screw rod 12 through a screw hole, the outer end of the screw 12 is fixedly installed with a knob 9, the knob 9 is rotated, and the knob 9 drives the adjusting plate 4 to slide inside the slide groove 3 through the screw 12, so as to facilitate the adjustment of the position of the adjusting plate 4, thereby facilitating the clamping of PCB circuit boards 5 of different specifications.

[0023] In this embodiment, a movable rod 8 is movably installed on the top of the fixed rod 7 through a torsion spring shaft. The number of the movable rod 8 and the fixed rod 7 are both two. The two sides of the top of the pressure plate 6 are rotatably connected to one end of the movable rod 8 through a shaft. The pressure plate 6 is arranged on the top of the fixed plate 2 and the PCB circuit board 5. The pressure plate 6 and the movable rod 8 are pressed on the top of one end of the PCB circuit board 5 under the torsion force of the torsion spring, which can improve the stability of the PCB circuit board 5.

[0024] In this embodiment, a support rod 13 is fixedly installed on the top of the cushion block 10, and the support rod 13 is fixedly installed at the four corners of the bottom of the base 1. An adjustment mechanism 11 is arranged on one of the support rods 13, and the adjustment mechanism 11 includes a turntable 14, and the turntable 14 is screwed on the support rod 13. A groove is opened at the bottom of one of the cushion blocks 10, and a piston plate 15 is movably installed inside the groove through a slide rod 16. The slide rod 16 is fixedly installed on the top of the piston plate 15, and an annular groove is opened at the bottom of the turntable 14. The top end of the slide rod 16 is limitedly slidably installed inside the annular groove. By rotating the turntable 14, the turntable 14 is screwed and raised on the support rod 13, and the turntable 14 drives the slide rod 16 to slide upward through the annular groove, and the slide rod 16 drives the piston plate 15 to move upward inside the groove, thereby forming a negative pressure between the cushion block 10 and the desktop, thereby improving the stability of the fixture.

[0025] When using the PCB circuit board detection fixture, a rubber pad is fixedly provided at the bottom of the cushion block 10. The fixture is placed on the desktop through the cushion block 10, and the turntable 14 is rotated. The turntable 14 is screwed and raised on the support rod 13, and the turntable 14 drives the piston plate 15 to rise through the action of the annular groove and the slide rod 16, so that a negative pressure is formed between the cushion block 10 and the desktop, which is convenient for fixing the fixture. The knob 9 is rotated. The knob 9 is screwed and drives the adjustment plate 4 to approach the fixed plate 2 through the screw 12, and the pressing plate 6 is lifted. The pressing plate 6 drives the torsion spring shaft through the movable rod 8, and the torsion spring shaft accumulates force, and the PCB circuit board 5 is placed on the step between the fixed plate 2 and the adjustment plate 4. The pressing plate 6 presses down the PCB circuit board 5 under the torsion of the movable rod 8 and the torsion spring shaft, which is convenient for clamping the PCB circuit board 5 of the specification, and can improve the stability of the PCB circuit board 5, and has high practicality; the bottom of the PCB circuit board 5 is in a suspended state, which can prevent the solder pins or electronic components at the bottom of the PCB circuit board 5 from being affected.

[0026] 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 PCB circuit board detection fixture, comprising a base (1), characterized in that: Pads (10) are provided at the four corners of the bottom of the base (1); a first limiting mechanism is provided on one side of the top of the base (1); the first limiting mechanism comprises a fixing rod (7) and a pressure plate (6); the fixing rod (7) is symmetrically fixedly mounted on one side of the top of the base (1); a second limiting mechanism is provided on the other side of the top of the base (1); the second limiting mechanism comprises a fixing plate (2) and an adjusting plate (4); a PCB circuit board (5) is clamped between the fixing plate (2) and the adjusting plate (4).

2. A PCB circuit board detection fixture according to claim 1, characterized in that: The fixing plate (2) is fixedly mounted on one side of the fixing rod (7) corresponding to the top of the base (1); the tops of the fixing plate (2) and the adjusting plate (4) are provided with steps, and the PCB circuit board (5) is mounted on the top of the steps.

3. A PCB circuit board detection fixture according to claim 2, characterized in that: The second limiting mechanism comprises a slide groove (3), the slide groove (3) being opened on the other side of the top of the base (1), and a screw rod (12) being installed inside the slide groove (3) for limiting rotation.

4. A PCB circuit board detection fixture according to claim 3, characterized in that: The adjustment plate (4) is in a "T" shape. The bottom end of the adjustment plate (4) is screwed onto a screw rod (12) through a screw hole. A knob (9) is fixedly mounted on the outer end of the screw rod (12).

5. The PCB circuit board detection fixture according to claim 1, characterized in that: A movable rod (8) is movably mounted on the top of the fixed rod (7) via a torsion spring rotating shaft, and the number of the movable rod (8) and the number of the fixed rod (7) are both two.

6. A PCB circuit board detection fixture according to claim 5, characterized in that: Both sides of the top of the pressing plate (6) are rotatably connected to one end of the movable rod (8) via a rotating shaft, and the pressing plate (6) is arranged on the top of the fixed plate (2) and the PCB circuit board (5).

7. A PCB circuit board detection fixture according to claim 1, characterized in that: A support rod (13) is fixedly mounted on the top of the cushion block (10), and the support rod (13) is fixedly mounted at the four corners of the bottom of the base (1), and an adjustment mechanism (11) is arranged on one of the support rods (13).

8. A PCB circuit board detection fixture according to claim 7, characterized in that: The adjusting mechanism (11) comprises a rotating disk (14), wherein the rotating disk (14) is screwed and mounted on a supporting rod (13), wherein a groove is provided at the bottom of one of the pads (10), wherein a piston plate (15) is movably mounted inside the groove via a sliding rod (16), wherein the sliding rod (16) is fixedly mounted on the top of the piston plate (15), wherein an annular groove is provided at the bottom of the rotating disk (14), and the top end of the sliding rod (16) is limitedly slidably mounted inside the annular groove.

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