PCB (printed circuit board) pressing device

Abstract

The utility model relates to the technical field of circuit board processing, and discloses a PCB (printed circuit board) pressing device which comprises a base, the top of the base is fixedly connected with a frame, the top of the frame is fixedly connected with a telescopic hydraulic cylinder, and the other end of the telescopic hydraulic cylinder penetrates through the frame and is fixedly connected with a pressing plate. A storage table is fixedly connected to the top of the base, a multi-layer plate is placed on the top of the storage table, a sliding rod is slidably connected to the middle of the storage table, a stop block is fixedly connected to one end of the sliding rod, a movable plate is fixedly connected to the other end of the sliding rod, and the periphery of the sliding rod is sleeved with a second compression spring. The side, close to the multi-layer plate, of the movable plate is fixedly connected with a correction plate. According to the utility model, through the cooperation of the first pressure spring, the second pressure spring, the first rubber plate, the second rubber plate and other structures, under the action of the first rubber plate and the second rubber plate, the damage to the edge of the multi-layer plate is reduced, and the production quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board processing, in particular to a PCB circuit board pressing device. Background Art

[0002] Circuit boards can be divided into three major categories according to the number of layers: single-sided boards, double-sided boards, and multi-layer circuit boards. Double-sided boards are an extension of single-sided boards. When single-layer wiring cannot meet the needs of electronic products, double-sided boards must be used. Both sides have copper cladding and wiring, and the lines between the two layers can be connected through vias to form the required network connection. Multi-layer boards refer to printed boards with more than three layers of conductive graphic layers and insulating materials in between, and the conductive graphics in between are interconnected as required. Multi-layer circuit boards are the product of the development of electronic information technology towards high speed, multi-function, large capacity, small size, thinness, and lightweight. In the production process of multi-layer boards, in order to ensure the tightness and reliability of the connection between the layers of the circuit board, it is usually necessary to use a pressing device to apply appropriate pressure to make the layers tightly bonded. Existing pressing devices usually use a positioning mechanism to place the multi-layer boards neatly on the lower pressing plate, and then drive the pressure system to apply pressure to the multi-layer boards, so as to quickly complete the pressing connection between the multi-layer boards. However, in actual use, when the positioning mechanism is calibrating the multi-layer boards, the hardness of the positioning plate and the force applied can easily scratch the multi-layer boards, thereby affecting the production quality of the multi-layer boards. Therefore, a PCB circuit board pressing device is proposed to solve the above problem. Utility Model Content

[0003] In order to make up for the above shortcomings, the utility model provides a PCB circuit board pressing device, which aims to improve the problem in the prior art that the positioning plate is easy to damage the multilayer board during the positioning process, thereby affecting the production weight.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A PCB circuit board pressing device comprises a base, the top of the base is fixedly connected to a frame, the top of the frame is fixedly connected to a telescopic hydraulic cylinder, the other end of the telescopic hydraulic cylinder passes through the frame and is fixedly connected to a pressing plate, the top of the base is fixedly connected to a storage table, a multilayer board is placed on the top of the storage table, a sliding rod is slidably connected to the middle of the storage table, one end of the sliding rod is fixedly connected to a blocking block, the other end of the sliding rod is fixedly connected to a movable plate, the outer periphery of the sliding rod is provided with two compression springs, the side of the movable plate close to the multilayer board is fixedly connected to a correction plate, the other side of the correction plate is fixedly connected to a rubber plate, and a positioning component is installed in the middle of the base.

[0006] Furthermore, the positioning assembly includes a motor, which is fixedly connected to the outside of the base, and the middle part of the base is rotatably connected to two bidirectional threaded rods, one of which is fixedly connected to the output end of the motor, and a connecting assembly is installed on the outer periphery of the two bidirectional threaded rods, and the outer peripheries of the two bidirectional threaded rods are threadedly connected to threaded plates, and the middle part of the threaded plate is slidably connected to a limit rod, and the outer periphery of the limit rod is provided with a compression spring 1, and one end of the limit rod close to the multilayer board is fixedly connected to a push plate, and the other side of the push plate is fixedly connected to a rubber plate 2.

[0007] Furthermore, the connection assembly includes two pulleys, the two pulleys are respectively fixedly connected to the outer peripheries of the two bidirectional threaded rods, and the outer peripheries of the two pulleys are sleeved with synchronous belts.

[0008] Furthermore, a round rod is fixedly connected to the inside of the base, a slider is slidably connected to the outer periphery of the round rod, the top of the slider is rotatably connected to a diagonal brace, the other end of the diagonal brace is rotatably connected to a top block, the top block is slidably connected to the middle of the storage table, and an elastic component is installed on the outer periphery of the round rod.

[0009] Furthermore, the elastic component includes a fixing ring, the fixing ring is fixedly connected to the outer circumference of the round rod, and the outer circumference of the round rod is sleeved with a compression spring three.

[0010] Furthermore, a pull rod is fixedly connected to the outer side of the movable plate.

[0011] Furthermore, a limiting block is fixedly connected to the outer side of the top block, a limiting groove is provided in the middle of the storage platform, and the limiting block is slidably connected to the middle of the limiting groove.

[0012] Furthermore, the multilayer board is located on the top of the top block.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, through the cooperation of the compression spring 1, the compression spring 2, the rubber plate 1, the rubber plate 2 and other structures, the edge of the multilayer board can be in contact with the rubber plate 1 and the rubber plate 2, so that the movable plate is pulled to place the multilayer board on the storage table. Under the push of the compression spring 2, the movable plate pushes the rubber plate 2 through the correction plate to align the edge of the multilayer board. At the same time, the motor is driven so that the threaded plate can drive the rubber plate pair to further align the multilayer board through the push plate, so that under the action of the rubber plate 1 and the rubber plate 2, the damage to the edge of the multilayer board is reduced, thereby improving the production quality.

[0015] 2. In the utility model, through the cooperation of the round rod, the diagonal brace, the slider, the top block and the like, the top block can lift up the multi-layer board after the multi-layer board is pressed together, so that when the multi-layer board is placed on the top block for pressing, the multi-layer board will push the top block to fit with the storage table, and at the same time, the top block will push the diagonal brace to drive the slider to squeeze the compression spring three. After the pressing is completed, the compression spring three will no longer be subjected to pressure and will push the slider to return to its original position, so that the slider can drive the top block to return to its original position through the diagonal brace, thereby avoiding the bottom of the multi-layer board from fitting too closely with the storage table. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of a PCB circuit board pressing device proposed by the utility model;

[0017] Figure 2 This is a structural schematic diagram of a bidirectional threaded rod of a PCB circuit board pressing device proposed by the utility model;

[0018] Figure 3 This is a structural schematic diagram of a slide bar of a PCB circuit board pressing device proposed by the utility model;

[0019] Figure 4 This is a structural schematic diagram of a push plate of a PCB circuit board pressing device proposed by the utility model;

[0020] Figure 5 The utility model provides a schematic structural diagram of a round rod of a PCB circuit board pressing device.

[0021] Legend:

[0022] 1. Base; 2. Frame; 3. Telescopic hydraulic cylinder; 4. Press plate; 5. Storage table; 6. Multi-layer board; 7. Motor; 8. Bidirectional threaded rod; 9. Pulley; 10. Synchronous belt; 11. Threaded plate; 12. Push plate; 13. Correction plate; 14. Movable plate; 15. Pull rod; 16. Compression spring one; 17. Limit rod; 18. Slide rod; 19. Compression spring two; 20. Block; 21. Rubber plate one; 22. Limit groove; 23. Rubber plate two; 24. Top block; 25. Diagonal support; 26. Limit block; 27. Round rod; 28. Slider; 29. ​​Fixed ring; 30. Compression spring three. DETAILED DESCRIPTION

[0023] 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.

[0024] Reference Figure 1-3 The utility model provides an embodiment: a PCB circuit board pressing device, including a base 1, a frame 2 is fixedly connected to the top of the base 1, a telescopic hydraulic cylinder 3 is fixedly connected to the top of the frame 2, the other end of the telescopic hydraulic cylinder 3 penetrates the frame 2 and is fixedly connected to a pressing plate 4, a storage table 5 is fixedly connected to the top of the base 1, a multilayer board 6 is placed on the top of the storage table 5, a sliding rod 18 is slidably connected to the middle of the storage table 5, one end of the sliding rod 18 is fixedly connected to a blocking block 20, the other end of the sliding rod 18 is fixedly connected to a movable plate 14, the outer side of the movable plate 14 is fixedly connected to a pull rod 15, the outer periphery of the sliding rod 18 is provided with a compression spring 2 19, the side of the movable plate 14 close to the multilayer board 6 is fixedly connected to a correction plate 13, and the other side of the correction plate 13 is fixedly connected to a rubber plate 21.

[0025] When in use, the movable plate 14 is pulled by the pull rod 15, and the multi-layer board 6 is placed on the top of the storage table 5. When the movable plate 14 is pulled, the sliding rod 18 is driven to pull the blocking block 20, so that the blocking block 20 squeezes the compression spring 2 19. After the pull rod 15 is released, the compression spring 2 19 will push the blocking block 20, so that the blocking block 20 pulls the movable plate 14 through the compression spring 2 19, so that the movable plate 14 pushes the correction plate 13, and the correction plate 13 drives the rubber plate 1 21 to correct and align the lateral edges of the multi-layer board 6, thereby preventing the correction plate 13 from damaging the edge of the multi-layer board 6 under the action of the rubber plate 1 21, and at the same time preventing the correction plate 13 from damaging the multi-layer board 6 due to excessive force under the action of the compression spring 2 19.

[0026] Reference Figure 1 , 2 and 4. A positioning assembly is installed in the middle of the base 1, and the positioning assembly includes a motor 7, which is fixedly connected to the outside of the base 1. The middle part of the base 1 is rotatably connected to two bidirectional threaded rods 8, one of which is fixedly connected to the output end of the motor 7. A connecting assembly is installed on the periphery of the two bidirectional threaded rods 8. The connecting assembly includes two pulleys 9, which are respectively fixedly connected to the peripheries of the two bidirectional threaded rods 8. The peripheries of the two pulleys 9 are sleeved with synchronous belts 10. The peripheries of the two bidirectional threaded rods 8 are threadedly connected with threaded plates 11. The middle part of the threaded plate 11 is slidably connected with a limiting rod 17, and the periphery of the limiting rod 17 is sleeved with a compression spring 16. One end of the limiting rod 17 close to the multilayer board 6 is fixedly connected to a push plate 12, and the other side of the push plate 12 is fixedly connected to a rubber plate 23.

[0027] When in use, the driving motor 7 drives the bidirectional threaded rod 8 to rotate, and the bidirectional threaded rod 8 drives a pulley 9 to rotate, and the pulley 9 drives the other pulley 9 to rotate through the synchronous belt 10, so that the two bidirectional threaded rods 8 rotate synchronously under the action of the two pulleys 9. While rotating, the bidirectional threaded rod 8 will drive the two threaded plates 11 to move toward each other, so that the threaded plate 11 can drive the push plate 12 to move through the limit rod 17, and the push plate 12 drives the rubber plate 23 to calibrate the longitudinal edge of the multi-layer board 6. At the same time, under the action of the compression spring 16, the force applied by the threaded plate 11 to the push plate 12 can be slowed down, thereby reducing the damage caused by the push plate 12 to the multi-layer board 6 under the action of the rubber plate 23, and avoiding the push plate 12 from applying excessive force to the multi-layer board 6 to cause damage under the action of the compression spring 16, thereby improving the production quality of the multi-layer board 6.

[0028] Reference Figure 3-5 A round rod 27 is fixedly connected to the inside of the base 1, and a slider 28 is slidably connected to the outer periphery of the round rod 27. The top of the slider 28 is rotatably connected to the diagonal brace 25, and the other end of the diagonal brace 25 is rotatably connected to the top block 24. The top block 24 is slidably connected to the middle of the storage table 5. The multilayer board 6 is located on the top of the top block 24. The outer side of the top block 24 is fixedly connected to the limiting block 26. A limiting groove 22 is provided in the middle of the storage table 5. The limiting block 26 is slidably connected to the middle of the limiting groove 22. An elastic component is installed on the outer periphery of the round rod 27. The elastic component includes a fixing ring 29. The fixing ring 29 is fixedly connected to the outer periphery of the round rod 27, and a compression spring 30 is sleeved on the outer periphery of the round rod 27.

[0029] When in use, the multilayer board 6 is placed on the top of the storage table 5 and is lifted by the top block 24. When the pressure plate 4 presses the multilayer board 6, the multilayer board 6 will push the top block 24 to slide into the storage table 5. At the same time, the top block 24 pushes the diagonal support 25, and the diagonal support 25 pushes the slider 28 to slide on the outer periphery of the round rod 27. While sliding, the round rod 27 will squeeze the compression spring three 30 under the action of the fixing ring 29. When the multilayer board 6 is pressed and the pressure plate 4 is raised, the compression spring three 30 loses pressure and pushes the slider 28, so that the slider 28 pushes the top block 24 to return to its original position through the diagonal support 25, so that the top block 24 can lift the multilayer board 6, thereby achieving that the multilayer board 6 can be quickly separated from the top of the storage table 5 after the pressing is completed, thereby improving the unloading efficiency of the multilayer board 6.

[0030] Working principle: pull the movable plate 14 outward and place the multi-layer plate 6 on the top of the storage table 5, and the movable plate 14 will drive the blocking block 20 to squeeze the compression spring 2 19 through the sliding rod 18 while pulling. After the movable plate 14 is released, the compression spring 2 19 will push the blocking block 20, thereby driving the movable plate 14 to push the correction plate 13, so that the correction plate 13 drives the rubber plate 1 21 to align the edge of the multi-layer plate 6, and then drive the motor 7 to drive the bidirectional threaded rod 8 to rotate so that the threaded plate 11 drives the push plate 12 to move through the limit rod 17 under the action of the bidirectional threaded rod 8. When the push plate 12 drives the rubber plate 23 to contact the other side of the multi-layer plate 6, the threaded plate 11 will squeeze the compression spring 16, thereby preventing the correction plate 13 and the push plate 12 from damaging the edge of the multi-layer plate 6 under the action of the rubber plate 23 and the rubber plate 1 21. At the same time, under the action of the compression spring 2 19 and the compression spring 1 16, the correction plate 13 and the push plate 12 can be prevented from applying a large force to the multi-layer plate 6 to cause damage, thereby improving the production quality of the multi-layer plate 6.

[0031] When the multilayer board 6 is placed, it will be lifted by the top block 24. When the multilayer board 6 is squeezed by the pressure plate 4, the multilayer board 6 will push the top block 24 to fit with the storage table 5, so that the top block 24 squeezes the diagonal support 25, and at the same time the diagonal support 25 drives the slider 28 to squeeze the compression spring three 30. When the multilayer board 6 is pressed and the pressure plate 4 is raised, the compression spring three 30 will push the slider 28, thereby pushing the diagonal support 25 to squeeze the top block 24 out of the middle of the storage table 5, so that the multilayer board 6 can be lifted up, thereby avoiding the bottom of the multilayer board 6 from fitting too closely with the storage table 5 and affecting the unloading efficiency.

[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 circuit board pressing device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a frame (2), the top of the frame (2) is fixedly connected to a telescopic hydraulic cylinder (3), the other end of the telescopic hydraulic cylinder (3) passes through the frame (2) and is fixedly connected to a pressure plate (4), the top of the base (1) is fixedly connected to a storage table (5), a multilayer board (6) is placed on the top of the storage table (5), a sliding rod (18) is slidably connected to the middle of the storage table (5), one end of the sliding rod (18) is fixedly connected to a blocking block (20), the other end of the sliding rod (18) is fixedly connected to a movable plate (14), the outer periphery of the sliding rod (18) is provided with a compression spring 2 (19), the movable plate (14) is fixedly connected to a correction plate (13) on one side close to the multilayer board (6), the other side of the correction plate (13) is fixedly connected to a rubber plate 1 (21), and a positioning component is installed in the middle of the base (1).

2. A PCB circuit board pressing device according to claim 1, characterized in that: The positioning assembly comprises a motor (7), wherein the motor (7) is fixedly connected to the outer side of the base (1), and the middle part of the base (1) is rotatably connected to two bidirectional threaded rods (8), wherein one of the bidirectional threaded rods (8) is fixedly connected to the output end of the motor (7), and a connecting assembly is installed on the outer periphery of the two bidirectional threaded rods (8), and the outer peripheries of the two bidirectional threaded rods (8) are threadedly connected to a threaded plate (11), and the middle part of the threaded plate (11) is slidably connected to a limit rod (17), and the outer periphery of the limit rod (17) is sleeved with a compression spring 1 (16), and one end of the limit rod (17) close to the multilayer board (6) is fixedly connected to a push plate (12), and the other side of the push plate (12) is fixedly connected to a rubber plate 2 (23).

3. A PCB circuit board pressing device according to claim 2, characterized in that: The connection assembly comprises two pulleys (9), the two pulleys (9) are respectively fixedly connected to the outer peripheries of the two bidirectional threaded rods (8), and the outer peripheries of the two pulleys (9) are sleeved with synchronous belts (10).

4. A PCB circuit board pressing device according to claim 1, characterized in that: A round rod (27) is fixedly connected to the interior of the base (1), a slider (28) is slidably connected to the outer periphery of the round rod (27), the top of the slider (28) is rotatably connected to an inclined brace (25), the other end of the inclined brace (25) is rotatably connected to a top block (24), the top block (24) is slidably connected to the middle of the storage table (5), and an elastic component is installed on the outer periphery of the round rod (27).

5. A PCB circuit board pressing device according to claim 4, characterized in that: The elastic component comprises a fixing ring (29), the fixing ring (29) being fixedly connected to the outer periphery of the round rod (27), and a compression spring three (30) is sleeved on the outer periphery of the round rod (27).

6. A PCB circuit board pressing device according to claim 1, characterized in that: A pull rod (15) is fixedly connected to the outer side of the movable plate (14).

7. A PCB circuit board pressing device according to claim 4, characterized in that: The outer side of the top block (24) is fixedly connected to a limiting block (26), a limiting groove (22) is provided in the middle of the storage platform (5), and the limiting block (26) is slidably connected to the middle of the limiting groove (22).

8. A PCB circuit board pressing device according to claim 4, characterized in that: The multilayer board (6) is located on top of the top block (24).

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