A PCB board laminating device

Abstract

This utility model belongs to the field of PCB processing technology, and particularly relates to a PCB lamination device, including a worktable, which comprises a processing table and a bracket fixed above the center of the processing table. An electric push rod is fixedly installed in the center of the bracket. The telescopic end of the electric push rod has symmetrically arranged protrusions on its outer wall, and the bottom end of the protrusions is connected to a pressure plate by bolts. A servo motor is fixed to the front left side wall of the processing table. Grooves are provided on both the front and rear sides of the processing table. A bidirectional lead screw is rotatably connected in the front groove, and a fixing rod is fixedly installed in the rear groove. The left end of the bidirectional lead screw is fixedly connected to the output end of the servo motor. This utility model can achieve all-directional clamping of multilayer boards, with better clamping and positioning effects, avoiding misalignment between multilayer boards and ensuring smooth lamination.

Description

Technical Field

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

[0002] In the PCB manufacturing industry, lamination is the core step in forming a multilayer board structure. Its purpose is to firmly bond the inner core board, prepreg, and outer copper foil together by applying pressure, so as to ensure that the circuit board has stable electrical performance and mechanical strength.

[0003] Chinese utility model patent CN221710177U discloses a multilayer PCB board laminating device. This device is designed to clamp and limit the circuit boards, improving the stability of the lamination process and enhancing ease of use. The device uses a bidirectional threaded rod to control two clamping plates to move closer together, thus clamping the multilayer boards to be laminated. However, the clamping plates are an integrated structure with a fixed front-to-back width, making it difficult to adjust them according to the actual dimensions of the multilayer boards. This can easily lead to misalignment between the boards, affecting the lamination quality.

[0004] Therefore, there is an urgent need to improve the existing PCB lamination device and provide a PCB lamination device with adjustment function and better clamping and positioning effect. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a PCB board pressing device that is reasonably designed, simple in structure, has adjustable functions, better clamping and positioning effects, and facilitates efficient pressing, thereby solving the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A PCB board lamination device, comprising: The workbench includes a processing table and a support fixed above the middle part of the processing table. An electric push rod is fixedly installed in the middle part of the support. The outer wall of the telescopic end of the electric push rod is symmetrically provided with protrusions. The bottom end of the protrusions is connected to a pressure plate by bolts. A servo motor is fixed to the front left side wall of the processing table. Grooves are provided on both the front and rear sides of the processing table. A bidirectional lead screw is rotatably connected in the front groove, and a fixed rod is fixed in the rear groove. The left end of the bidirectional lead screw is fixedly connected to the output end of the servo motor. Two movable frames are arranged symmetrically about the processing table. The upper end of each movable frame has a dovetail groove. Each movable frame has two sets of positioning mechanisms symmetrically arranged front and back. One end of each movable frame is threaded onto the outside of the bidirectional lead screw, and the other end of each movable frame is slidably sleeved onto the outside of the fixed rod. The positioning mechanism includes a dovetail strip that engages and slides within the dovetail groove. A mounting box is fixed above one end of the dovetail strip. A gear plate is mounted on the inner bottom surface of the mounting box. The mounting box contains a first clamping assembly and a second clamping assembly, which are linked together.

[0007] Preferably, the system also includes a controller fixed to the outer left side of the top of the bracket. The controller is a PLC processor, and both the servo motor and the electric push rod are electrically connected to the controller.

[0008] Preferably, the inner bottom surface of the dovetail groove is provided with a plurality of positioning holes at equal intervals along its length, and the end of the dovetail strip away from the mounting box is threadedly connected with a positioning bolt, the diameter of the thread section of the positioning bolt being adapted to the diameter of the positioning hole.

[0009] Preferably, the first clamping assembly includes a lower crossbar, a first clamping rod, and a spring. The lower crossbar is fixedly disposed on the inner side of the bottom end of the mounting box. The first clamping rod is slidably sleeved on the outer side of the lower crossbar, and a spring is fixedly connected between the two. The first clamping rod has a meshing part on the side near the toothed disc, and its meshing part meshes with the toothed disc.

[0010] Preferably, the second clamping assembly includes an upper crossbar, a second clamping rod, and a through groove. There are two upper crossbars, which are fixed symmetrically on the left and right sides of the upper end of the mounting box. The second clamping rod is slidably sleeved on the outer side of the upper crossbar. The second clamping rod has a vertical through groove at one end inside the mounting box.

[0011] Preferably, a protruding post is fixed on the upper surface of the toothed disc at the outer edge away from its center, and the top end of the protruding post is guided and slidably located in the through groove.

[0012] Preferably, both the first clamping rod and the second clamping rod are slidably connected to the mounting box. The ends of the first clamping rod and the second clamping rod located outside the mounting box are provided with vertically downward extensions. The bottom ends of the extensions slide against the upper surface of the processing table, and rubber pads are adhered to the side of the extensions closest to the circuit board.

[0013] Compared with the prior art, the present invention has the following beneficial effects: In this invention, when the servo motor is started to rotate the bidirectional lead screw, the left and right movable frames can be controlled to move synchronously along the fixed rod in a direction that approaches each other. When the first clamping rod comes into contact with the left and right sides of the multilayer board, as the movable frame continues to move, relative sliding occurs between the mounting box and the first clamping rod, and the gear plate meshing with the first clamping rod can rotate. At this time, the convex post eccentrically fixed on the upper end face of the gear plate can squeeze the second clamping rod with a through groove inside, so that the second clamping rod slides along the upper cross bar until it comes into contact with the front and rear sides of the multilayer board. This enables the multilayer board to be clamped in all directions, with better clamping and positioning effect, avoiding misalignment between the multilayer boards and ensuring smooth pressing.

[0014] This invention utilizes a dovetail strip located inside the dovetail groove to quickly adjust the spacing between two sets of positioning components on the same movable frame. This allows for the pressing of multi-layer boards with significantly different dimensions. Once the positioning components are adjusted, the positioning bolts threaded at one end of the dovetail strip can be tightened, causing the threaded section of the positioning bolts to move down and insert into the corresponding positioning holes. This limits the positioning components and ensures their stable operation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings are described as follows: Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the movable frame of this utility model; Figure 3 This is a front view cross-sectional structural diagram of the movable frame and dovetail strip of this utility model; Figure 4 This is a top sectional view of the mounting box of this utility model. Figure 5 This is a front view cross-sectional structural diagram of the first clamping component of this utility model; Figure 6 This is a schematic diagram of the circuit board clamping structure of this utility model.

[0016] In the picture: 1. Machining table; 2. Two-way lead screw; 3. Fixed rod; 4. Servo motor; 5. Bracket; 6. Electric push rod; 7. Pressure plate; 8. Controller; 9. Movable frame; 10. Dovetail groove; 11. Positioning hole; 12. Dovetail strip; 13. Positioning bolt; 14. Mounting box; 15. Gear plate; 16. Protruding column; 17. Lower crossbar; 18. First clamping rod; 19. Spring; 20. Upper crossbar; 21. Second clamping rod; 22. Through groove; 23. Rubber pad. Detailed Implementation

[0017] The embodiments described below are merely some embodiments of the present invention and do not represent all embodiments consistent with the present invention. Exemplary embodiments will now be described with reference to the accompanying drawings: like Figure 1-6 As shown in one example, the PCB circuit board laminating device of this utility model includes: The workbench includes a processing table 1 and a support 5 fixed above the middle part of the processing table 1. An electric push rod 6 is fixedly installed in the middle part of the support 5. The outer wall of the telescopic end of the electric push rod 6 is symmetrically provided with protrusions. The bottom end of the protrusions is connected to a pressure plate 7 by bolts. Servo motor 4 is fixed to the front left side wall of processing table 1. Grooves are provided on both the front and rear sides of processing table 1. A bidirectional lead screw 2 is rotatably connected in the front groove, and a fixed rod 3 is fixed in the rear groove. The left end of the bidirectional lead screw 2 is fixedly connected to the output end of servo motor 4. There are two movable frames 9, which are arranged symmetrically about the processing table 1. The upper end of the movable frame 9 is provided with a dovetail groove 10. Each movable frame 9 is provided with two sets of positioning mechanisms symmetrically arranged front and back. One end of the movable frame 9 is threaded to the outside of the double-acting screw 2, and the other end of the movable frame 9 is slidably sleeved to the outside of the fixed rod 3. The positioning mechanism includes a dovetail strip 12 that engages and slides within the dovetail groove 10. A mounting box 14 is fixed above one end of the dovetail strip 12. A gear plate 15 is mounted on the inner bottom surface of the mounting box 14. The mounting box 14 is equipped with a first clamping component and a second clamping component, which are linked together.

[0018] As a preferred embodiment, based on the above structure, it further includes a controller 8 fixed to the outer wall of the top left side of the bracket 5. The controller 8 is a PLC processor, and both the servo motor 4 and the electric push rod 6 are electrically connected to the controller 8.

[0019] In this embodiment, the electric push rod 6 can control the lifting and lowering of the pressure plate 7, which facilitates the pressing of multi-layer boards. Moreover, the pressure plate 7 can be disassembled for easy replacement.

[0020] As a preferred embodiment, based on the above structure, the inner bottom surface of the dovetail groove 10 is further provided with a plurality of positioning holes 11 at equal intervals along its length direction, and the end of the dovetail strip 12 away from the mounting box 14 is threadedly connected to a positioning bolt 13, the diameter of the threaded section of the positioning bolt 13 being adapted to the diameter of the positioning hole 11.

[0021] In this embodiment, the positioning hole 11 and the matching positioning bolt 13 are used to facilitate the adjustment and positioning of the dovetail strip 12.

[0022] As a preferred embodiment, based on the above structure, the first clamping assembly further includes a lower crossbar 17, a first clamping rod 18 and a spring 19. The lower crossbar 17 is fixedly disposed on the inner side of the bottom end of the mounting box 14. The first clamping rod 18 is slidably sleeved on the outer side of the lower crossbar 17 and the spring 19 is fixedly connected between the two. The first clamping rod 18 has a meshing part on the side near the toothed disc 15, and its meshing part meshes with the toothed disc 15.

[0023] In this embodiment, the lower crossbar 17 improves the telescopic sliding stability of the first clamping rod 18, and the spring 19 facilitates the reset of the first clamping rod 18. Furthermore, when relative sliding occurs between the first clamping rod 18 and the mounting box 14, the meshing part of the first clamping rod 18 can cause the toothed disc 15 that meshes with it to rotate.

[0024] As a preferred embodiment, based on the above structure, the second clamping assembly further includes an upper crossbar 20, a second clamping rod 21, and a through groove 22. There are two upper crossbars 20, which are respectively fixed at symmetrical positions on the left and right sides of the upper end of the mounting box 14. The second clamping rod 21 is slidably sleeved on the outer side of the upper crossbar 20. The second clamping rod 21 has a vertical through groove 22 at one end inside the mounting box 14.

[0025] As a preferred embodiment, based on the above structure, a protruding post 16 is fixed on the upper surface of the outer edge of the toothed disc 15 away from its center, and the top end of the protruding post 16 is guided and slidably located in the through groove 22.

[0026] In this embodiment, when the toothed disc 15 rotates, the convex post 16 eccentrically fixed on the upper end face of the toothed disc 15 can squeeze the second clamping rod 21 with the through groove 22 inside, so that the second clamping rod 21 slides along the upper cross bar 20 until it fits against the front and rear sides of the multilayer board, which can achieve all-directional contact clamping of the multilayer board, with better clamping and positioning effect, and can avoid misalignment between the multilayer boards.

[0027] As a preferred embodiment, based on the above structure, both the first clamping rod 18 and the second clamping rod 21 are slidably connected to the mounting box 14. The ends of the first clamping rod 18 and the second clamping rod 21 located outside the mounting box 14 are provided with vertically downward extensions. The bottom ends of the extensions slide against the upper surface of the processing table 1, and rubber pads 23 are glued to the side of the extensions near the circuit board.

[0028] In this embodiment, the rubber pad 23 facilitates soft contact between the first clamping rod 18 and the second clamping rod 21 and the multilayer board, thus preventing damage to the multilayer board.

[0029] The working principle of this utility model is as follows: In use, the multilayer board to be pressed is first placed above the center of the processing table 1. Then, the servo motor 4 is started to rotate the bidirectional lead screw 2, which controls the two movable frames 9 to drive the positioning mechanism to move synchronously along the fixed rod 3 and approach each other. When the first clamping rod 18 comes into contact with the left and right sides of the multilayer board, as the movable frame 9 continues to move, the mounting box 14 and the first clamping rod 18 slide relative to each other, and the gear plate 15 that meshes with the first clamping rod 18 can rotate. At this time, the convex post 16 that is eccentrically fixed on the upper end face of the gear plate 15 can squeeze the second clamping rod 21 with the through groove 22 inside, so that the second clamping rod 21 can slide along the upper cross bar 20 until it comes into contact with the front and rear sides of the multilayer board. This can achieve contact clamping of the multilayer board in all directions, and the clamping and positioning effect is better. It can avoid misalignment between multilayer boards and ensure smooth pressing. Moreover, the rubber pad 23 facilitates soft contact between the first clamping rod 18 and the second clamping rod 21 and the multilayer board, avoiding damage to the multilayer board. Based on the actual dimensions of the multilayer board, the dovetail strip 12 located inside the dovetail groove 10 can be used to quickly adjust the spacing between the two sets of positioning components on the same movable frame 9, so as to meet the pressing process of multilayer boards with large size differences. After the position of the dovetail strip 12 is adjusted, the positioning bolt 13 threaded at one end of the dovetail strip 12 can be tightened, so that the threaded section of the positioning bolt 13 moves down and is inserted into the corresponding positioning hole 11, thereby limiting the positioning component and ensuring its stable operation. Finally, once the multilayer board is clamped stably, the electric push rod 6 can be activated to control the pressure plate 7 to press down vertically, and the PCB circuit board pressing operation can begin. Moreover, the pressure plate 7 can be replaced according to the size of the PCB circuit board. It should be noted that this device is powered by an external AC power source. The servo motor 4, electric push rod 6, and controller 8 in this solution are all existing electrical components, and their specific control and operating principles are mature technologies, so they will not be described in detail.

[0030] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any equivalent changes, modifications, substitutions, and variations made by those skilled in the art based on the concept of this utility model and on the basis of existing technology through logical analysis, reasoning, or limited experiments shall be within the scope of protection defined by the claims.

Claims

1. A PCB circuit board laminating device, characterized in that, include: The workbench includes a processing table (1) and a bracket (5) fixed above the middle part of the processing table (1). An electric push rod (6) is fixedly installed in the middle part of the bracket (5). The outer wall of the telescopic end of the electric push rod (6) is symmetrically provided with protrusions, and the bottom end of the protrusions is connected to a pressure plate (7) by bolts. A servo motor (4) is fixed to the front left side wall of the processing table (1). The processing table (1) has grooves on both the front and rear sides. A bidirectional lead screw (2) is rotatably connected in the front groove, and a fixed rod (3) is fixed in the rear groove. The left end of the bidirectional lead screw (2) is fixedly connected to the output end of the servo motor (4). There are two movable frames (9) arranged symmetrically about the processing table (1). The upper end of the movable frame (9) is provided with a dovetail groove (10). Each movable frame (9) is provided with two sets of positioning mechanisms symmetrically arranged front and back. One end of the movable frame (9) is threaded to the outside of the bidirectional lead screw (2), and the other end of the movable frame (9) is slidably sleeved to the outside of the fixed rod (3). The positioning mechanism includes a dovetail strip (12) that engages and slides within the dovetail groove (10). A mounting box (14) is fixed above one end of the dovetail strip (12). A gear plate (15) is mounted on the inner bottom surface of the mounting box (14). The mounting box (14) is equipped with a first clamping component and a second clamping component inside. The first clamping component and the second clamping component are linked together.

2. The PCB circuit board laminating device according to claim 1, characterized in that: It also includes a controller (8) fixed on the outer wall of the top left side of the bracket (5). The controller (8) is a PLC processor. Both the servo motor (4) and the electric push rod (6) are electrically connected to the controller (8).

3. The PCB circuit board laminating device according to claim 1, characterized in that: The inner bottom surface of the dovetail groove (10) is provided with a plurality of positioning holes (11) at equal intervals along its length direction. The end of the dovetail strip (12) away from the mounting box (14) is threaded with a positioning bolt (13). The diameter of the thread section of the positioning bolt (13) is adapted to the diameter of the positioning hole (11).

4. The PCB circuit board laminating device according to claim 1, characterized in that: The first clamping assembly includes a lower crossbar (17), a first clamping rod (18), and a spring (19). The lower crossbar (17) is fixedly disposed on the inner side of the bottom end of the mounting box (14). The first clamping rod (18) is slidably sleeved on the outer side of the lower crossbar (17), and the spring (19) is fixedly connected between the two. The first clamping rod (18) has a meshing part on the side near the toothed disc (15), and its meshing part meshes with the toothed disc (15).

5. A PCB circuit board laminating device according to claim 4, characterized in that: The second clamping assembly includes an upper crossbar (20), a second clamping rod (21), and a through groove (22). There are two upper crossbars (20) and they are fixed at symmetrical positions on the left and right sides of the upper end of the mounting box (14). The second clamping rod (21) is slidably sleeved on the outer side of the upper crossbar (20). The second clamping rod (21) has a vertical through groove (22) at one end inside the mounting box (14).

6. The PCB circuit board laminating device according to claim 5, characterized in that: A protruding post (16) is fixed on the upper surface of the outer edge of the toothed disc (15) away from its center, and the top end of the protruding post (16) is guided and slidably located in the through groove (22).

7. A PCB circuit board laminating device according to claim 5, characterized in that: Both the first clamping rod (18) and the second clamping rod (21) are slidably connected to the mounting box (14). The first clamping rod (18) and the second clamping rod (21) are provided with a vertically downward extension at one end outside the mounting box (14). The bottom end of the extension slides against the upper surface of the processing table (1), and a rubber pad (23) is attached to the side of the extension near the circuit board.

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