Quick mounting structure of PCB (Printed Circuit Board) test fixture

Abstract

The utility model relates to the technical field of PCB (printed circuit board) testing, and discloses a rapid mounting structure of a PCB testing jig, which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with supporting legs, the upper surfaces of the supporting legs are fixedly connected with a detection table, the inner wall of the detection table is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is rotatably connected with a pressing block, and the pressing block is fixedly connected with a clamping groove. A transmission shaft is fixedly connected to the inner wall of the detection table, a U-shaped pulling plate is rotatably connected to the outer wall of the transmission shaft, a grab handle is fixedly connected to the outer wall of the U-shaped pulling plate, and the inner wall of the U-shaped pulling plate is arranged on the outer wall of a pressing block. According to the utility model, the pressing plate pushes the clamping plate to move, after the clamping plate is separated from the mounting groove of the jig body, the jig body can be disassembled and replaced, after the clamping plate is placed in the mounting groove of the jig body, the pressing plate is loosened, and the spring pushes the clamping plate to move, so that the jig body can be quickly disassembled and assembled, and the detection of PCBs with different specifications can be met; and the test diversity effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB board testing, in particular to a PCB board testing fixture quick installation structure. Background Art

[0002] PCB is usually made of insulating materials, such as glass fiber reinforced epoxy resin. It has one or more layers, each layer has conductive tracks, these tracks are called circuits, used to connect electronic components. PCB is widely used in electronic equipment and systems, including computers, mobile phones, televisions, automotive electronics, medical equipment, etc. Various PCB types and designs meet the needs of various applications. At the same time, it is also necessary to test different PCB types. Therefore, a PCB test fixture quick installation structure is proposed.

[0003] However, most of the current PCB test fixtures cannot quickly disassemble and install the fixture body, and cannot meet the requirements of testing PCB boards of different specifications. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a PCB board test fixture quick installation structure, which aims to improve the problem that the fixture body cannot be quickly disassembled and installed, and cannot meet the requirements of testing PCB boards of different specifications.

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

[0006] A quick installation structure for a PCB board test fixture comprises a base plate, the upper surface of the base plate is fixedly connected with a leg, the upper surface of the leg is fixedly connected with a detection platform, the inner wall of the detection platform is fixedly connected with a connecting shaft, the outer wall of the connecting shaft is rotatably connected with a pressure block, the inner wall of the detection platform is fixedly connected with a transmission shaft, the outer wall of the transmission shaft is rotatably connected with a U-shaped pull plate, the outer wall of the U-shaped pull plate is fixedly connected with a handle, the inner wall of the U-shaped pull plate is arranged on the outer wall of the pressure block, the interior of the pressure block is slidably connected with a pressing plate, the outer wall of the pressing plate is fixedly connected with a card plate, the outer wall of the card plate is slidably connected to the inner wall of the pressure block, the outer wall of the card plate is fixedly connected with a spring, the outer wall of the spring is fixedly connected to the inner wall of a sleeve, the outer wall of the sleeve is fixedly connected to the inner wall of the pressure block, and the outer wall of the card plate is provided with a detection component.

[0007] Preferably, the detection assembly comprises a jig body, an outer wall of the jig body is arranged on an outer wall of the pressure block, an outer wall of the clamping plate is arranged on an inner wall of the jig body, and a probe is fixedly connected to the lower surface of the jig body.

[0008] Preferably, a frame plate is fixedly connected to the upper surface of the base plate, and a hydraulic cylinder is fixedly connected to the inner wall of the frame plate.

[0009] Preferably, the output end of the hydraulic cylinder is fixedly connected to a moving block, and the outer wall of the moving block is rotatably connected to a guide plate.

[0010] Preferably, the outer wall of the guide plate is rotatably connected to a first linkage plate, and the interior of the first linkage plate is rotatably connected to a rotating column.

[0011] Preferably, a U-shaped bracket is fixedly connected to the outer wall of the rotating column, and the lower surface of the U-shaped bracket is fixedly connected to the upper surface of the frame plate.

[0012] Preferably, the outer wall of the first linkage plate is rotatably connected to the second linkage plate, and the inner wall of the second linkage plate is rotatably connected to the engagement block.

[0013] Preferably, the interior of the locking block is rotatably connected to a limiting column, the outer wall of the limiting column is fixedly connected to a fixing plate, and the outer wall of the fixing plate is fixedly connected to the outer wall of the frame plate.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the pressing plates on both sides of the pressing block are pressed, and the pressing plates push the card plate to move on the inner wall of the pressing block. After the card plate is separated from the mounting groove of the fixture body when moving, the fixture body can be disassembled or replaced. Then, when the fixture body needs to be installed, the pressing plate is pressed, and the outer wall of the card plate is placed in the mounting groove of the fixture body. The pressing plate is released, and the spring fixed by the sleeve pushes the card plate to move on the inner wall of the pressing block, and then the fixture body is quickly installed, so that the fixture body can be quickly disassembled and installed, which meets the requirements of testing PCB boards of different specifications and improves the effect of test diversity.

[0016] 2. In the utility model, the handle drives the U-shaped pull plate to rotate on the outer wall of the transmission shaft, and the inner wall of the U-shaped pull plate pushes the outer wall of the connecting shaft fixed to the inner wall of the test bench to rotate. After the inner wall of the U-shaped pull plate passes the arc-shaped protrusion on the outer wall of the pressure block, the fixture body arranged on the outer wall of the pressure block can be driven to rotate onto the PCB board, and the PCB board is tested by the probe. After the outer wall of the U-shaped pull plate reaches the top protrusion of the pressure block, the pressure block can be driven to rotate on the outer wall of the connecting shaft, and then the test of the PCB board can be stopped, thereby achieving the effect of rapid testing of the PCB board and improving the test efficiency of the PCB board.

[0017] 3. In the utility model, the output end of the hydraulic cylinder can drive the moving block to move up and down. When the moving block moves, it can drive the first linkage plate to rotate on the inner wall of the U-shaped bracket through the rotating column. At the same time, the guide plate can pull the second linkage plate, and the second linkage plate can drive the closing block to rotate on the outer wall of the limiting column fixed by the fixed plate, and then the closing block can fix the PCB board, so that the PCB board to be tested can be quickly fixed, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a quick installation structure of a PCB board test fixture proposed by the utility model;

[0019] Figure 2 A schematic diagram of a U-shaped pull plate of a PCB board test fixture quick installation structure proposed by the utility model;

[0020] Figure 3 This is a cross-sectional view of a pressing block of a PCB board test fixture quick installation structure proposed by the utility model;

[0021] Figure 4 A schematic diagram of a combination block of a quick installation structure of a PCB board test fixture proposed by the utility model.

[0022] Legend:

[0023] 1. Bottom plate; 2. Support legs; 3. Testing table; 4. Connecting shaft; 5. Pressure block; 6. Transmission shaft; 7. U-shaped pull plate; 8. Handle; 9. Press plate; 10. Clamp plate; 11. Spring; 12. Sleeve; 13. Fixture body; 14. Probe; 15. Frame plate; 16. Hydraulic cylinder; 17. Moving block; 18. Guide plate; 19. First linkage plate; 20. Rotating column; 21. U-shaped bracket; 22. Second linkage plate; 23. Closing block; 24. Limiting column; 25. Fixed plate. 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 1-3The utility model provides an embodiment: a PCB board test fixture quick installation structure, including a base plate 1, the upper surface of the base plate 1 is fixedly connected with a leg 2, the upper surface of the leg 2 is fixedly connected with a detection platform 3, the inner wall of the detection platform 3 is fixedly connected with a connecting shaft 4, the outer wall of the connecting shaft 4 is rotatably connected with a pressing block 5, the inner wall of the detection platform 3 is fixedly connected with a transmission shaft 6, the outer wall of the transmission shaft 6 is rotatably connected with a U-shaped pull plate 7, the outer wall of the U-shaped pull plate 7 is fixedly connected with a handle 8, the inner wall of the U-shaped pull plate 7 is arranged on the outer wall of the pressing block 5, and the inner wall of the pressing block 5 is slidably connected to the outer wall of the pressing block 5. A pressing plate 9 is connected, the outer wall of the pressing plate 9 is fixedly connected with a clamping plate 10, the outer wall of the clamping plate 10 is slidably connected to the inner wall of the pressing block 5, the outer wall of the clamping plate 10 is fixedly connected with a spring 11, the outer wall of the spring 11 is fixedly connected to the inner wall of a sleeve 12, the outer wall of the sleeve 12 is fixedly connected to the inner wall of the pressing block 5, and the outer wall of the clamping plate 10 is provided with a detection component; the detection component includes a fixture body 13, the outer wall of the fixture body 13 is arranged on the outer wall of the pressing block 5, the outer wall of the clamping plate 10 is arranged on the inner wall of the fixture body 13, and the lower surface of the fixture body 13 is fixedly connected with a probe 14;

[0026] Specifically, the bottom plate 1 has a fixing effect on the supporting legs 2, and the supporting legs 2 have a fixing and supporting effect on the testing platform 3, and the testing platform 3 can fix the positions of the connecting shaft 4 and the transmission shaft 6, and the grip 8 drives the U-shaped pull plate 7 to rotate on the outer wall of the transmission shaft 6, and the inner wall of the U-shaped pull plate 7 can push the pressure block 5 to rotate on the outer wall of the connecting shaft 4 fixed on the inner wall of the testing platform 3, and after the inner wall of the U-shaped pull plate 7 passes the arc-shaped protrusion position of the outer wall of the pressure block 5, the jig body 13 set on the outer wall of the pressure block 5 can be driven to rotate onto the PCB board, and the PCB board is tested by the probe 14, and then the grip 8 is held again to rotate, and the outer wall of the U-shaped pull plate 7 reaches the top protrusion of the pressure block 5. After the position is reached, the pressing block 5 can be driven to rotate on the outer wall of the connecting shaft 4, thereby stopping the test of the PCB board, and at the same time, pressing the pressing plates 9 on both sides of the pressing block 5, the pressing plates 9 can push the card plate 10 to move on the inner wall of the pressing block 5, and after the card plate 10 is separated from the mounting groove of the jig body 13 when moving, the jig body 13 can be disassembled or replaced, and then when the jig body 13 needs to be installed, the pressing plate 9 is pressed, and after the outer wall of the card plate 10 is placed in the mounting groove of the jig body 13, the pressing plate 9 is released, and the spring 11 fixed by the sleeve 12 can push the card plate 10 to move on the inner wall of the pressing block 5, thereby quickly installing the jig body 13.

[0027] Reference Figure 4The upper surface of the bottom plate 1 is fixedly connected with a frame plate 15, and the inner wall of the frame plate 15 is fixedly connected with a hydraulic cylinder 16; the output end of the hydraulic cylinder 16 is fixedly connected with a moving block 17, and the outer wall of the moving block 17 is rotatably connected with a guide plate 18; the outer wall of the guide plate 18 is rotatably connected with a first linkage plate 19, and the inside of the first linkage plate 19 is rotatably connected with a rotating column 20; the outer wall of the rotating column 20 is fixedly connected with a U-shaped bracket 21, and the lower surface of the U-shaped bracket 21 is fixedly connected to the upper surface of the frame plate 15;

[0028] Specifically, the base plate 1 has a fixing function on the frame plate 15, and the frame plate 15 has a fixing and supporting function on the hydraulic cylinder 16. The output end of the hydraulic cylinder 16 can push the moving block 17 to move up and down, and the moving block 17 can pull the guide plate 18. When the guide plate 18 moves, it can drive the first linkage plate 19 to rotate on the outer wall of the rotating column 20. The U-shaped bracket 21 can fix the position of the rotating column 20, and the frame plate 15 has a fixing and supporting function on the U-shaped bracket 21.

[0029] Reference Figure 4 The outer wall of the first linkage plate 19 is rotatably connected to the second linkage plate 22, and the inner wall of the second linkage plate 22 is rotatably connected to the closing block 23; the closing block 23 is internally rotatably connected to the limiting column 24, and the outer wall of the limiting column 24 is fixedly connected to the fixing plate 25, and the outer wall of the fixing plate 25 is fixedly connected to the outer wall of the frame plate 15;

[0030] Specifically, the first linkage plate 19 can drive the second linkage plate 22, the fixed plate 25 can fix the position of the limiting column 24, the second linkage plate 22 can pull the closing block 23 to rotate on the outer wall of the limiting column 24, and the lower surface of the closing block 23 can fix the PCB board on the upper surface of the frame plate 15, and the frame plate 15 has a fixed support function for the fixed plate 25.

[0031] Working principle: When this device is needed, the hydraulic cylinder 16 fixed on the inner wall of the frame plate 15 is turned on, and the output end of the hydraulic cylinder 16 can drive the moving block 17 to move up and down. When the moving block 17 moves, it can drive the first linkage plate 19 to rotate on the inner wall of the U-shaped bracket 21 through the rotating column 20. At the same time, the guide plate 18 can pull the second linkage plate 22, and the second linkage plate 22 can drive the closing block 23 to rotate on the outer wall of the limiting column 24 fixed by the fixed plate 25, so that the closing block 23 can move the PCB board. The U-shaped pull plate 7 is fixed to prevent deviation during the test. After that, the technician can hold the handle 8 tightly to rotate it. The handle 8 can drive the U-shaped pull plate 7 to rotate on the outer wall of the transmission shaft 6. The inner wall of the U-shaped pull plate 7 can push the pressing block 5 to rotate on the outer wall of the connecting shaft 4 fixed on the inner wall of the testing platform 3. After the inner wall of the U-shaped pull plate 7 passes the arc-shaped protrusion position of the outer wall of the pressing block 5, the fixture body 13 set on the outer wall of the pressing block 5 can be driven to rotate onto the PCB board, and the PCB board is tested by the probe 14, and then it is tested again. By holding the handle 8 tightly and rotating it, after the outer wall of the U-shaped pull plate 7 reaches the position of the top protrusion of the pressure block 5, the pressure block 5 can be driven to rotate on the outer wall of the connecting shaft 4, thereby stopping the test of the PCB board, and at the same time pressing the pressing plates 9 on both sides of the pressure block 5, the pressing plates 9 can push the card plate 10 to move on the inner wall of the pressure block 5, and after the card plate 10 is disengaged from the mounting groove of the fixture body 13 when moving, the fixture body 13 can be disassembled or replaced, and then when the fixture body 13 needs to be installed, the pressing plate 9 is pressed, and the outer wall of the card plate 10 is placed in the mounting groove of the fixture body 13, and then the pressing plate 9 is released, and the spring 11 fixed by the sleeve 12 can push the card plate 10 to move on the inner wall of the pressure block 5, and then the fixture body 13 can be quickly installed, that is, the device can not only achieve the effect of quickly disassembling and installing the fixture body 13, but also achieve the effect of quickly testing the PCB board and improving the test efficiency of the PCB board, and can also achieve the effect of quickly fixing the PCB board to be tested, thereby improving the accuracy of the test.

[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. A PCB board test fixture quick installation structure, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is fixedly connected to a support leg (2), the upper surface of the support leg (2) is fixedly connected to a detection platform (3), the inner wall of the detection platform (3) is fixedly connected to a connecting shaft (4), the outer wall of the connecting shaft (4) is rotatably connected to a pressure block (5), the inner wall of the detection platform (3) is fixedly connected to a transmission shaft (6), the outer wall of the transmission shaft (6) is rotatably connected to a U-shaped pull plate (7), the outer wall of the U-shaped pull plate (7) is fixedly connected to a handle (8), the inner wall of the U-shaped pull plate (7) is fixedly connected to a handle (9), and the inner wall of the U-shaped pull plate (7) is fixedly connected to a connecting shaft (4). The wall is arranged on the outer wall of the pressing block (5); a pressing plate (9) is slidably connected inside the pressing block (5); a clamping plate (10) is fixedly connected to the outer wall of the pressing plate (9); the outer wall of the clamping plate (10) is slidably connected to the inner wall of the pressing block (5); a spring (11) is fixedly connected to the outer wall of the clamping plate (10); the outer wall of the spring (11) is fixedly connected to the inner wall of a sleeve (12); the outer wall of the sleeve (12) is fixedly connected to the inner wall of the pressing block (5); and a detection component is arranged on the outer wall of the pressing block (5).

2. A PCB board test fixture quick installation structure according to claim 1, characterized in that: The detection assembly comprises a jig body (13), the outer wall of the jig body (13) is arranged on the outer wall of the pressing block (5), the outer wall of the clamping plate (10) is arranged on the inner wall of the jig body (13), and the lower surface of the jig body (13) is fixedly connected with a probe (14).

3. A PCB board test fixture quick installation structure according to claim 2, characterized in that: A frame plate (15) is fixedly connected to the upper surface of the base plate (1), and a hydraulic cylinder (16) is fixedly connected to the inner wall of the frame plate (15).

4. A PCB board test fixture quick installation structure according to claim 3, characterized in that: The output end of the hydraulic cylinder (16) is fixedly connected to a moving block (17), and the outer wall of the moving block (17) is rotatably connected to a guide plate (18).

5. A PCB board test fixture quick installation structure according to claim 4, characterized in that: The outer wall of the guide plate (18) is rotatably connected to a first linkage plate (19), and the interior of the first linkage plate (19) is rotatably connected to a rotating column (20).

6. A PCB board test fixture quick installation structure according to claim 5, characterized in that: A U-shaped bracket (21) is fixedly connected to the outer wall of the rotating column (20), and the lower surface of the U-shaped bracket (21) is fixedly connected to the upper surface of the frame plate (15).

7. A PCB board test fixture quick installation structure according to claim 6, characterized in that: The outer wall of the first linkage plate (19) is rotatably connected to the second linkage plate (22), and the inner wall of the second linkage plate (22) is rotatably connected to a locking block (23).

8. A PCB board test fixture quick installation structure according to claim 7, characterized in that: The interior of the locking block (23) is rotatably connected to a limiting column (24), the outer wall of the limiting column (24) is fixedly connected to a fixing plate (25), and the outer wall of the fixing plate (25) is fixedly connected to the outer wall of the frame plate (15).

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