PCB circuit board pressing device

Abstract

This utility model discloses a PCB circuit board pressing device, including a worktable. Four support rods are fixedly connected to the bottom of the worktable, and side plates are fixedly connected to both sides of the top of the worktable. A pressing structure is provided between two of the side plates. Two transverse sliding grooves and two longitudinal sliding grooves are formed on the top of the worktable, and both transverse and longitudinal sliding grooves are through grooves. Sliding rods are fixedly connected within each of the transverse and longitudinal sliding grooves. A sliding block is slidably connected to the side wall of each sliding rod, and a sliding plate is fixedly connected to the top of each sliding block. This utility model, through the cooperation of sliding plates, a rotating ring, rotating rods, and sliding rods, allows the pressing plates on both sides to move simultaneously by turning the rotating ring. This saves costs, prevents misalignment of multi-layer circuit boards, and is simple, convenient, and quick to operate.

Description

Technical Field

[0001] This utility model relates to the field of pressing device technology, and in particular to a PCB circuit board pressing device. Background Technology

[0002] Circuit boards (PCBs) are broadly classified into three categories based on the number of layers: single-sided boards, double-sided boards, and multilayer boards. Double-sided boards are an extension of single-sided boards; they are used when single-layer wiring cannot meet the needs of electronic products. Both sides have copper plating and traces, and vias can be used to connect the two layers, forming the required network connections. Multilayer boards are printed circuit boards with three or more conductive pattern layers laminated with insulating materials in between, and the conductive patterns are interconnected as required. Multilayer PCBs are a product of the development of electronic information technology towards high speed, multifunctionality, large capacity, small size, thinness, and lightweight. During the production process of multilayer boards, to ensure the tightness and reliability of the connections between the layers, a lamination device is usually used to apply appropriate pressure to ensure a tight bond between the layers.

[0003] For example, Chinese Patent Publication No. CN221010441U discloses a PCB circuit board pressing device, which relates to the field of circuit board technology. The device includes a base, with a pressing fixing bracket fixedly connected to the top of the base; a fixed top plate fixedly connected to the top of the pressing fixing bracket, with a movable transverse groove formed at the top of the fixed top plate; a pressing movable bracket slidably connected to the top of the pressing fixing bracket; movable fixed bases fixedly connected to both sides of the bottom end of the pressing fixing bracket; and a movable limiting base slidably connected to the outer side of the movable fixed base. Furthermore, in use, this invention allows for adjustment of the pressing plate position by employing the pressing movable bracket.

[0004] However, in the above solution, the device needs to be moved by multiple cylinders to move the limit bracket during use. Moving the limit bracket by multiple cylinders will increase the production cost of the device. If bolts are used instead, multiple bolts need to be tightened. If the limit brackets on both sides cannot move at the same time, the center position of the multilayer circuit board will change, thus affecting the compaction effect of the circuit board. Utility Model Content

[0005] This invention provides a PCB board pressing device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A PCB board pressing device includes a worktable, four support rods fixedly connected to the bottom of the worktable, side plates fixedly connected to both sides of the top of the worktable, a pressing structure between two side plates, two transverse sliding grooves and two longitudinal sliding grooves formed on the top of the worktable, the two transverse sliding grooves and two longitudinal sliding grooves being through grooves, sliding rods fixedly connected to the two transverse sliding grooves and two longitudinal sliding grooves, a sliding block slidably connected to the side wall of each sliding rod, a sliding plate fixedly connected to the top of each sliding block, and four sliding plates slidably connected to the top surface of the worktable; Each of the four sliding blocks has a drive rod rotatably connected to its bottom via a rotating shaft. A threaded rod is fixedly connected to the bottom of the worktable. Two rotating rings are threadedly connected to the outer sidewall of the threaded rod. Fixed blocks are rotatably connected to the outer sidewall of each of the two rotating rings via bearings. One end of each of the two drive rods at the bottom of the two longitudinal slides is rotatably connected to the two side walls of the upper fixed block via a rotating shaft. One end of each of the two drive rods at the bottom of the two transverse slides is rotatably connected to the two side walls of the lower fixed block via a rotating shaft.

[0007] As a further improvement to this technical solution: the compaction structure includes a top plate, which is fixedly connected between two side plates. An electric push rod is fixedly connected to the bottom of the top plate, and a compaction plate is fixedly connected to the extended end of the electric push rod. The compaction plate is located between four sliding plates.

[0008] As a further improvement to this technical solution: each of the four sliding plates is fixedly connected to an extrusion plate at one end, and each of the four extrusion plates has a rubber pad on its side wall.

[0009] As a further improvement to this technical solution: the width of the two sliding plates on the two longitudinal slide sidewalls is longer than that of the two sliding plates on the two transverse slide sidewalls.

[0010] As a further improvement to this technical solution: a limiting plate is fixedly connected to the bottom of the threaded rod, and the limiting plate can limit the rotation ring to prevent the rotation ring from detaching from the side wall of the threaded rod.

[0011] As a further improvement to this technical solution: multiple rotating rods are fixedly connected to the outer sidewalls of the two rotating rings, and the surfaces of the multiple rotating rods are provided with anti-slip textures.

[0012] As a further improvement to this technical solution: the threaded rod is made of stainless steel, which can improve the strength and service life of the threaded rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the device, through the cooperation of components such as sliding plate, rotating ring, rotating rod, and sliding rod, can simultaneously drive the extrusion plates on both sides to move by turning the rotating ring, which saves costs and prevents the phenomenon of multi-layer circuit boards from shifting. It is simple, convenient and quick to operate.

[0014] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a front view structural diagram of a PCB circuit board pressing device proposed in this utility model; Figure 2 This is a bottom view of the PCB board laminating device proposed in this utility model. Figure 3 This is a schematic diagram showing the disassembled structure of a PCB circuit board pressing device proposed in this utility model; Figure 4 This is a schematic diagram of the threaded rod in a PCB circuit board pressing device proposed in this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Workbench; 2. Extrusion plate; 3. Sliding plate; 4. Compacting plate; 5. Electric push rod; 6. Top plate; 7. Side plate; 8. Support rod; 9. Drive rod; 10. Fixing block; 11. Threaded rod; 12. Limiting plate; 13. Rotating rod; 14. Sliding block; 15. Sliding rod; 16. Rotary ring; 17. Transverse groove; 18. Longitudinal groove; 19. Bearing. Detailed Implementation

[0017] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described in more detail below by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0018] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] Please see Figure 1-4 In this embodiment of the utility model, a PCB circuit board pressing device includes a workbench 1. Four support rods 8 are fixedly connected to the bottom of the workbench 1. Side plates 7 are fixedly connected to both sides of the top of the workbench 1. A pressing structure is provided between the two side plates 7. Two horizontal slide grooves 17 and two vertical slide grooves 18 are opened on the top of the workbench 1. The two horizontal slide grooves 17 and two vertical slide grooves 18 are all through grooves. Sliding rods 15 are fixedly connected in the two horizontal slide grooves 17 and two vertical slide grooves 18. Sliding blocks 14 are slidably connected to the side wall of each sliding rod 15. Sliding plates 3 are fixedly connected to the top of each sliding block 14. The four sliding plates 3 are slidably connected to the top surface of the workbench 1. The bottom of each of the four sliding blocks 14 is rotatably connected to a drive rod 9 via a rotating shaft. The bottom of the worktable 1 is fixedly connected to a threaded rod 11. The outer ring sidewall of the threaded rod 11 is threadedly connected to two rotating rings 16. The outer ring sidewall of each of the two rotating rings 16 is rotatably connected to a fixed block 10 via a bearing 19. One end of each of the two drive rods 9 at the bottom of the two longitudinal slides 18 is rotatably connected to the two side walls of the upper fixed block 10 via a rotating shaft. One end of each of the two drive rods 9 at the bottom of the two transverse slides 17 is rotatably connected to the two side walls of the lower fixed block 10 via a rotating shaft.

[0021] Please see Figure 1-3 The compaction structure includes a top plate 6, which is fixedly connected between two side plates 7. An electric push rod 5 is fixedly connected to the bottom of the top plate 6. A compaction plate 4 is fixedly connected to the extended end of the electric push rod 5. The compaction plate 4 is located between four sliding plates 3. By activating the electric push rod 5, the extended end of the electric push rod 5 drives the compaction plate 4 to move, causing the compaction plate 4 to move downward to compact the calibrated multilayer circuit board.

[0022] Please see Figure 1 , Figure 3 Each of the four sliding plates 3 has a pressing plate 2 fixedly connected to one end. Each of the four pressing plates 2 has a rubber pad on its side wall. The pressing plate 2 can increase the contact area between the sliding plate 3 and the circuit board, thereby improving the clamping and calibration effect of the circuit board. The rubber pad can protect the circuit board and prevent the pressing plate 2 from damaging the surface of the circuit board.

[0023] Please see Figure 1 , Figure 3 The width of the two sliding plates 3 on the sidewalls of the two longitudinal slide grooves 18 is longer than that of the two sliding plates 3 on the sidewalls of the two transverse slide grooves 17. When placing circuit boards of different sizes, the two longer sliding plates 3 are always clamped on the longer side of the circuit board, which can increase the contact area between the sliding plates 3 and the circuit board, and reduce the interference between the four sliding plates 3 when the circuit board is small.

[0024] Please see Figure 1-4 A limiting plate 12 is fixedly connected to the bottom of the threaded rod 11. The limiting plate 12 can limit the rotating ring 16 to prevent the rotating ring 16 from detaching from the side wall of the threaded rod 11.

[0025] Please see Figure 1-4 Multiple rotating rods 13 are fixedly connected to the outer sidewalls of the two rotating rings 16. The surfaces of the multiple rotating rods 13 are provided with anti-slip textures. The rotating rings 16 can be rotated by rotating the rotating rods 13. Compared with directly rotating the rotating rings 16, rotating the rotating rods 13 is more labor-saving and convenient.

[0026] Please see Figure 1-4 The threaded rod 11 is made of stainless steel, which can improve the strength and service life of the threaded rod 11.

[0027] The working principle of this utility model is as follows: When it is necessary to press the multi-layer circuit board, the multi-layer circuit board is placed between four sliding plates 3. By rotating the lower rotating rod 13, the lower rotating ring 16 is driven to rotate, so that the rotating ring 16 drives the lower fixed block 10 to move downward. When the lower fixed block 10 moves, it can pull the two driving rods 9 to move, so that the two driving rods 9 pull the two sliding blocks 14 in the two transverse slide grooves 17 to move. The two sliding blocks 14 drive the two sliding plates 3 to press and calibrate the left and right sides of the multi-layer circuit board. Then, the upper rotating rod 13 is rotated to drive the upper rotating ring 16 to rotate, so that the rotating ring 16 drives the fixed block 10 to move downward. The fixed block 10 pulls the two sliding blocks 14 in the longitudinal slide groove 18 to move through the two driving rods 9. The two sliding blocks 14 drive the two sliding plates 3 to press and calibrate the front and rear sides of the multi-layer circuit board, thereby completing the calibration and limiting of the multi-layer circuit board. By activating the electric push rod 5, the extended end of the electric push rod 5 drives the compaction plate 4 to move, causing the compaction plate 4 to move downward to compact the calibrated multilayer circuit board.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A PCB circuit board laminating device, comprising a worktable (1), characterized in that, The bottom of the workbench (1) is fixedly connected with four support rods (8). The top two sides of the workbench (1) are fixedly connected with side plates (7). A compaction structure is provided between the two side plates (7). The top of the workbench (1) has two transverse sliding grooves (17) and two longitudinal sliding grooves (18). The two transverse sliding grooves (17) and the two longitudinal sliding grooves (18) are all through grooves. The two transverse sliding grooves (17) and the two longitudinal sliding grooves (18) are all fixedly connected with sliding rods (15). Each sliding rod (15) has a sliding block (14) slidably connected to its side wall. Each sliding block (14) has a sliding plate (3) fixedly connected to its top. The four sliding plates (3) are slidably connected to the top surface of the workbench (1). The bottom of each of the four sliding blocks (14) is rotatably connected to a drive rod (9) via a rotating shaft. The bottom of the worktable (1) is fixedly connected to a threaded rod (11). The outer ring sidewall of the threaded rod (11) is threadedly connected to two rotating rings (16). The outer ring sidewall of each of the two rotating rings (16) is rotatably connected to a fixed block (10) via a bearing (19). One end of each of the two drive rods (9) at the bottom of the two longitudinal slides (18) is rotatably connected to the two side walls of the upper fixed block (10) via a rotating shaft. One end of each of the two drive rods (9) at the bottom of the two transverse slides (17) is rotatably connected to the two side walls of the lower fixed block (10) via a rotating shaft.

2. The PCB circuit board laminating device according to claim 1, characterized in that, The compaction structure includes a top plate (6), which is fixedly connected between two side plates (7). An electric push rod (5) is fixedly connected to the bottom of the top plate (6). A compaction plate (4) is fixedly connected to the extended end of the electric push rod (5). The compaction plate (4) is located between four sliding plates (3).

3. The PCB circuit board laminating device according to claim 1, characterized in that, Each of the four sliding plates (3) is fixedly connected to an extrusion plate (2) at one end, and each of the four extrusion plates (2) has a rubber pad on its side wall.

4. The PCB circuit board laminating device according to claim 1, characterized in that, The width of the two sliding plates (3) on the sidewalls of the two longitudinal grooves (18) is longer than that of the two sliding plates (3) on the sidewalls of the two transverse grooves (17).

5. The PCB circuit board laminating device according to claim 1, characterized in that, The bottom of the threaded rod (11) is fixedly connected to a limiting plate (12), which can limit the swivel (16) to prevent the swivel (16) from detaching from the side wall of the threaded rod (11).

6. The PCB circuit board laminating device according to claim 1, characterized in that, Multiple rotating rods (13) are fixedly connected to the outer sidewalls of the two rotating rings (16), and the surfaces of the multiple rotating rods (13) are provided with anti-slip textures.

7. The PCB circuit board laminating device according to claim 1, characterized in that, The threaded rod (11) is made of stainless steel, which can improve the strength and service life of the threaded rod (11).

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