Self-adaptive clamping mechanism of PCB (Printed Circuit Board) test fixture

Abstract

The utility model relates to the technical field of clamping mechanisms, and discloses a self-adaptive clamping mechanism for a PCB (Printed Circuit Board) test fixture, which comprises a working table, a first motor is fixedly connected to the upper surface of the working table, a threaded column is fixedly connected to the output end of the first motor, a first fixing block is fixedly connected to the upper surface of the working table, and a second fixing block is fixedly connected to the output end of the threaded column. A first fixing block is slidably connected to the outer wall of the first sliding block, the lower surface of the first fixing block is fixedly connected to the upper surface of the workbench, a first groove is formed in the first fixing block, and a first rotating column is rotatably connected to the interior of the first fixing block; and the upper surface of the first rotating column is fixedly connected with a first limiting block. According to the automatic fixture clamping device, the first motor is started to drive the threaded column to rotate, so that the first sliding block is driven to move, when an irregular fixture is placed in the automatic fixture clamping device, the first limiting block is driven to rotate, the second limiting block is driven to rotate to drive the second fixing block to clamp the fixture, and the automatic fixture clamping device has the effect of automatically adapting to the shape of the fixture.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping mechanisms, in particular to an adaptive clamping mechanism for a PCB board testing fixture. Background Art

[0002] Printed circuit board (PCB) is one of the key components commonly found in modern electronic devices. It provides a way to connect and support electronic components in electronic devices. PCB is a board made of insulating material covered with conductive paths (usually copper) to connect various electronic components such as integrated circuits, resistors, capacitors and connectors. These conductive paths are formed by chemical processing or mechanical processing to form the required circuit connections. During testing, the PCB board will be placed in a fixture and then the next step of testing will be carried out. Therefore, an adaptive clamping mechanism for a PCB board test fixture is proposed.

[0003] After searching, a PCB board coding centering clamping mechanism is disclosed in the announcement number: CN215512902U, including a clamping mechanism, and the clamping mechanism includes a box body, a box door, a slide rail, a nozzle, a vent, a bracket, a motor, a blade, a ventilation pipe, a filter element, a guide rail, a slider, a fixed block, a fixing bolt and a motor 2. The PCB board coding centering clamping mechanism has the advantages of driving the blades to rotate by the motor to form air flow, sucking the gas generated by spraying out of the box body, the gas passes through the filter element, and the ventilation pipe is connected to the exhaust gas equipment to discharge the gas to avoid affecting human health. The PCB board is fixed by the fixed block and the slider, and the distance between the sliders is adjusted according to the width of the PCB board. After centering and clamping, the motor 2 and the guide rail are movably installed, and the guide rail can be driven to rotate by the motor 2. The coding can be sprayed on both sides of the PCB board as needed, without taking out the centering clamp and spraying again, which reduces the operation process.

[0004] In the above application, the PCB board is fixed by a fixed block and a slider, and the distance between the sliders is adjusted according to the width of the PCB board. After centering and clamping, the guide rail is movably installed by using motor 2, and the guide rail can be driven to rotate by motor 2. The coding can be performed on both sides of the PCB board as needed, without removing the centering clamp and spraying again, thereby reducing the operation process. However, during use, the problem that the clamping cannot be automatically adjusted due to the irregularity of the fixture is not taken into consideration. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an adaptive clamping mechanism for a PCB board test fixture, aiming to improve the problem that the clamping cannot be automatically adjusted according to the irregular shape of the fixture.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A PCB board testing fixture adaptive clamping mechanism comprises a workbench, the upper surface of the workbench is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a threaded column, the upper surface of the workbench is fixedly connected to a first fixed block, the outer wall of the first sliding block is slidably connected to the first fixed block, the lower surface of the first fixed block is fixedly connected to the upper surface of the workbench, a first groove is provided inside the first fixed block, the first fixed block is rotatably connected to the first rotating column inside, the upper surface of the first rotating column is fixedly connected to a first limit block, the upper surface of the first limit block is provided with a second groove, the first limit block is rotatably connected to the second rotating column inside, the upper surface of the second rotating column is rotatably connected to the second limit block, the outer wall of the second limit block is fixedly connected to the second fixed block, the lower surface of the workbench is slidably connected to a shell, and the outer wall of the shell is provided with a moving component.

[0008] Preferably, the moving assembly comprises a handle, an outer wall of the handle is fixedly connected to the outer wall of the shell, a lower surface of the shell is fixedly connected to a leg, and a lower surface of the leg is fixedly connected to a universal wheel.

[0009] Preferably, a self-locking motor is fixedly connected to the outer wall of the housing, and a rotating shaft is fixedly connected to the output end of the self-locking motor.

[0010] Preferably, one end of the rotating shaft is rotatably connected to a third limiting block, and the lower surface of the third limiting block is fixedly connected to the inner wall of the shell.

[0011] Preferably, a first support rod is fixedly connected to the outer wall of the rotating shaft, and a first bearing is fixedly connected to the outer wall of the first support rod.

[0012] Preferably, the outer wall of the first bearing is rotatably connected to a first limiting column, and the outer wall of the first limiting column is fixedly connected to a second bearing.

[0013] Preferably, one end of the second bearing is rotatably connected to a baffle, and the upper surface of the baffle is fixedly connected to the lower surface of the workbench.

[0014] Preferably, the outer wall of the first support rod is rotatably connected to the outer wall of the third limiting block, and the interior of the workbench is slidably connected to the second limiting column.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the first motor is started, the first motor drives the threaded column to rotate, the rotation of the threaded column drives the first slider to move, when an irregular jig is placed therein, it drives the first limit block to rotate, the first limit block drives the second limit block to rotate, the rotation of the second limit block drives the second fixed block to clamp the jig, thereby achieving the effect of facilitating the clamping of irregular jigs and achieving the effect of automatically adapting to the shape of the jig.

[0017] 2. In the utility model, the self-locking motor is started, the self-locking motor drives the rotating shaft to rotate, the rotation of the second rotating shaft drives the first support rod to rotate, the rotation of the first support rod drives the first bearing to move, the movement of the first bearing drives the limit column to rotate, the rotation of the limit column drives the second bearing to move, the movement of the second bearing drives the baffle to move, thereby driving the workbench to move, so as to achieve the effect of adjusting according to the different heights of workers.

[0018] 3. In the utility model, the handle is pushed, the handle drives the shell to move, and the movement of the shell drives the legs to move through the universal wheels, so as to achieve the effect of conveniently sending the clamped fixture to the next test location. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of an adaptive clamping mechanism for a PCB board test fixture proposed by the utility model;

[0020] Figure 2 This is an exploded view of the first fixing block of an adaptive clamping mechanism of a PCB board test fixture proposed by the utility model;

[0021] Figure 3 A schematic diagram of a self-locking motor of an adaptive clamping mechanism for a PCB board test fixture proposed by the utility model.

[0022] Legend:

[0023] 1. Workbench; 2. First motor; 3. Threaded column; 4. First slider; 5. First fixed block; 6. First groove; 7. First rotating column; 8. First limit block; 9. Second groove; 10. Second rotating column; 11. Second limit block; 12. Second fixed block; 13. Housing; 14. Handle; 15. Leg; 16. Universal wheel; 17. Self-locking motor; 18. Rotating shaft; 19. Third limit block; 20. First support rod; 21. First bearing; 22. First limit column; 23. Second bearing; 24. Baffle; 25. Second limit column. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-2 , the utility model provides an embodiment: an adaptive clamping mechanism for a PCB board test fixture, comprising a workbench 1, a first motor 2 is fixedly connected to the upper surface of the workbench 1, a threaded column 3 is fixedly connected to the output end of the first motor 2, a first slider 4 is threadedly connected to the outer wall of the threaded column 3, a first fixed block 5 is fixedly connected to the upper surface of the workbench 1, a first groove 6 is provided inside the first fixed block 5, a first rotating column 7 is rotatably connected inside the first fixed block 5, a first limiting block 8 is fixedly connected to the upper surface of the first rotating column 7, a second groove 9 is provided on the upper surface of the first limiting block 8, a second rotating column 10 is rotatably connected inside the first limiting block 8, a second limiting block 11 is rotatably connected to the upper surface of the second rotating column 10, a second fixed block 12 is fixedly connected to the outer wall of the second limiting block 11, a shell 13 is slidably connected to the lower surface of the workbench 1, and a moving component is provided on the outer wall of the shell 13;

[0026] Specifically, the first motor 2 is started to drive the threaded column 3 to rotate, thereby driving the first slider 4 to move, and the irregular jig is placed therein. When clamping, the second fixed block 12 and the second limit block 11 are driven to rotate internally, and the first limit block 8 is driven to rotate, thereby achieving an adaptive clamping effect on the irregular jig.

[0027] Reference Figure 1 The mobile assembly includes a handle 14, the outer wall of the handle 14 is fixedly connected to the outer wall of the housing 13, the lower surface of the housing 13 is fixedly connected to a leg 15, and the lower surface of the leg 15 is fixedly connected to a universal wheel 16;

[0028] Specifically, the handle 14 is pushed to drive the housing 13 to move, thereby moving through the universal wheels 16, so as to facilitate the transportation of the clamped fixture to the next test location.

[0029] Reference Figure 3The outer wall of the housing 13 is fixedly connected with a self-locking motor 17, and the output end of the self-locking motor 17 is fixedly connected with a rotating shaft 18; one end of the rotating shaft 18 is rotatably connected with a third limit block 19, and the lower surface of the third limit block 19 is fixedly connected to the inner wall of the housing 13; the outer wall of the rotating shaft 18 is fixedly connected with a first support rod 20, and the outer wall of the first support rod 20 is fixedly connected with a first bearing 21; the outer wall of the first bearing 21 is rotatably connected with a first limit column 22, and the outer wall of the first limit column 22 is fixedly connected with a second bearing 23; one end of the second bearing 23 is rotatably connected with a baffle 24, and the upper surface of the baffle 24 is fixedly connected to the lower surface of the workbench 1; the outer wall of the first support rod 20 is rotatably connected to the outer wall of the third limit block 19, and the interior of the workbench 1 is slidably connected with a second limit column 25;

[0030] Specifically, starting the self-locking motor 17 drives the rotating shaft 18 to rotate, thereby driving the first support rod 20 to rotate. The rotation of the first support rod 20 drives the first bearing 21 to move, thereby driving the first limiting column 22 to rotate. The rotation of the first limiting column 22 drives the second bearing 23 to rotate, thereby driving the baffle 24 to move. The movement of the baffle 24 drives the workbench 1 to move, thereby achieving the effect of adjusting according to the different heights of workers.

[0031] Working principle: When the mechanism is needed, start the first motor 2, the first motor 2 drives the threaded column 3 to rotate, the rotation of the threaded column 3 drives the first slider 4 to move, and the irregular jig is placed therein. When clamping, the second fixed block 12 and the second limit block 11 are driven to rotate inside the second groove 9 through the second rotating column 10, and the first limit block 8 is driven to rotate inside the first groove 6 inside the first fixed block 5 through the first rotating column 7, so as to achieve the effect of adaptive clamping of the irregular jig, start the self-locking motor 17 on the outer wall of the shell 13, the self-locking motor 17 drives the rotating shaft 18 to rotate inside the third limit block 19, the rotation of the rotating shaft 18 drives the first support rod 20 to rotate, and the rotation of the first support rod 20 drives the first shaft The bearing 21 moves, the movement of the first bearing 21 drives the first limiting column 22 to rotate, the rotation of the first limiting column 22 drives the second bearing 23 to rotate, thereby driving the baffle 24 to move, the movement of the baffle 24 drives the workbench 1 to move, so as to achieve the effect of adjusting according to the different heights of workers, push the handle 14, the handle 14 drives the shell 13 to move, the movement of the shell 13 drives the support leg 15 to move through the universal wheel 16, which facilitates the transportation of the clamped fixture to the next test location. This mechanism can not only achieve the effect of adaptive clamping of irregular fixtures, but also achieve the effect of adjusting according to the different heights of workers and facilitating the transportation of the clamped fixture to the next test location.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive clamping mechanism for a PCB board test fixture, comprising a workbench (1), characterized in that: The upper surface of the workbench (1) is fixedly connected to a first motor (2), an output end of the first motor (2) is fixedly connected to a threaded column (3), an outer wall of the threaded column (3) is threadedly connected to a first sliding block (4), the upper surface of the workbench (1) is fixedly connected to a first fixed block (5), the lower surface of the first fixed block (5) is fixedly connected to the upper surface of the workbench (1), a first groove (6) is provided inside the first fixed block (5), and a first rotating column (7) is rotatably connected inside the first fixed block (5), The upper surface of the first rotating column (7) is fixedly connected to a first limit block (8), the upper surface of the first limit block (8) is provided with a second groove (9), the interior of the first limit block (8) is rotatably connected to a second rotating column (10), the upper surface of the second rotating column (10) is rotatably connected to a second limit block (11), the outer wall of the second limit block (11) is fixedly connected to a second fixed block (12), the lower surface of the workbench (1) is slidably connected to an outer shell (13), and the outer wall of the outer shell (13) is provided with a moving component.

2. The adaptive clamping mechanism of a PCB board test fixture according to claim 1, characterized in that: The moving assembly comprises a handle (14), the outer wall of the handle (14) is fixedly connected to the outer wall of the outer shell (13), the lower surface of the outer shell (13) is fixedly connected to a support leg (15), and the lower surface of the support leg (15) is fixedly connected to a universal wheel (16).

3. The adaptive clamping mechanism of a PCB board test fixture according to claim 2, characterized in that: A self-locking motor (17) is fixedly connected to the outer wall of the housing (13), and a rotating shaft (18) is fixedly connected to the output end of the self-locking motor (17).

4. The adaptive clamping mechanism of a PCB test fixture according to claim 3, characterized in that: One end of the rotating shaft (18) is rotatably connected to a third limiting block (19), and the lower surface of the third limiting block (19) is fixedly connected to the inner wall of the outer shell (13).

5. The adaptive clamping mechanism of a PCB test fixture according to claim 4, characterized in that: A first support rod (20) is fixedly connected to the outer wall of the rotating shaft (18), and a first bearing (21) is fixedly connected to the outer wall of the first support rod (20).

6. The adaptive clamping mechanism of a PCB test fixture according to claim 5, characterized in that: The outer wall of the first bearing (21) is rotatably connected to a first limiting column (22), and the outer wall of the first limiting column (22) is fixedly connected to a second bearing (23).

7. The adaptive clamping mechanism of a PCB test fixture according to claim 6, characterized in that: One end of the second bearing (23) is rotatably connected to a baffle (24), and the upper surface of the baffle (24) is fixedly connected to the lower surface of the workbench (1).

8. The adaptive clamping mechanism of a PCB test fixture according to claim 7, characterized in that: The outer wall of the first support rod (20) is rotatably connected to the outer wall of the third limiting block (19), and the interior of the workbench (1) is slidably connected to a second limiting column (25).

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