Anti-dislocation circuit board pressing device

Abstract

The utility model discloses an anti-dislocation circuit board press-fit device, relates to the technical field of circuit board manufacturing, and provides the following scheme for solving the problems proposed in the background technology: the anti-dislocation circuit board press-fit device comprises a workbench, the upper surface of the workbench is fixedly connected with a support frame, and the upper surface of the support frame is fixedly connected with a hydraulic push rod; the output end of the hydraulic push rod is fixedly connected with a pressing assembly, the upper surface of the workbench is fixedly connected with a positioning assembly, the pressing assembly comprises a strip-shaped pressing block, and the upper surface of the strip-shaped pressing block is fixedly connected with four limiting round rods. According to the utility model, through the arrangement of the pressing assembly, during use, a limiting slide block can be driven by a limiting round rod to descend in a limiting sleeve, so that a strip-shaped pressing block is always kept to descend in a straight line, the strip-shaped pressing block does not deviate in the pressing process, the stability is higher, and a pre-pressing plate can tightly press a multilayer circuit board before pressing, so that the production efficiency is improved. The pressing quality of the circuit board is further improved, and the problem of dislocation is avoided.

Description

Technical Field

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

[0002] Circuit boards serve as the support for electronic components, connecting various electronic components through circuits and playing a role in conduction and transmission. They are made of copper-clad laminates, on which circuit layers are formed through core processes such as circuit film exposure and development, etching, and electroplating. The working principle of a circuit board is to use the insulating material of the board base to isolate the conductive copper foil layer on the surface, allowing current to flow through various components along pre-designed routes to complete various functions. According to the number of layers, circuit boards are divided into single-sided boards, double-sided boards, and multi-layer circuit boards. In the manufacturing process of multi-layer circuit boards, multiple circuit boards generally need to be laminated together, so a lamination device is required to perform the lamination operation on multi-layer circuit boards.

[0003] In the existing lamination equipment, the multilayer circuit boards are usually aligned first before being laminated. However, the existing lamination equipment does not have any limiting structure during the descent process. Therefore, after long-term use, the descent stroke may be offset. This offset will cause different pressures on the multilayer circuit boards, resulting in misalignment of the multilayer circuit boards and reducing the lamination quality. There is room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a circuit board pressing device to prevent misalignment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A circuit board pressing device for preventing misalignment includes a worktable, a support frame fixedly connected to the upper surface of the worktable, a hydraulic push rod fixedly connected to the upper surface of the support frame, a pressing assembly fixedly connected to the output end of the hydraulic push rod, and a positioning assembly fixedly connected to the upper surface of the worktable. The pressing assembly includes a strip-shaped pressing block, four limiting round rods fixedly connected to the upper surface of the strip-shaped pressing block, four limiting sleeves fixedly connected to the lower surface of the support frame, limiting sliders slidably connected to the inner walls of the limiting sleeves, a strip-shaped groove formed on the lower surface of the pressing block, four sliding grooves formed on the inner top wall of the strip-shaped groove, and movable grooves formed on the left and right inner walls of the sliding grooves. Limit rods are fixedly connected to the inner top walls of two movable grooves, and springs are sleeved on the surface of the limiting rods. Movable plates are slidably connected to the inner walls of the two movable grooves, and top rods are fixedly connected to the lower surface of the movable plates. Pre-pressing plates are fixedly connected to the bottom ends of the four top rods.

[0007] The positioning component includes a positioning frame, with a pressing groove on the upper surface of the positioning frame. A pressing support plate overlaps the inner bottom wall of the pressing groove. Adjusting screws are threaded to the front, back, left, and right sides of the positioning frame. The positioning frame has four cavities inside, with positioning grooves on the inner walls of the cavities. A movable plate is slidably connected to the inner wall of the positioning groove. An adjusting top plate is fixedly connected to the side of the movable plate. An electric push rod is fixedly connected to the inner bottom wall of the worktable.

[0008] Preferably, the top end of the limiting rod extends into the interior of the limiting sleeve and is fixedly connected to the lower surface of the limiting slider. The bottom end of the limiting sleeve has a circular through hole that matches the limiting rod. When the strip-shaped pressure block descends, it can drive the limiting rod to descend, and the limiting rod drives the limiting slider to descend within the limiting sleeve. Thus, the four limiting rods can ensure that the strip-shaped pressure block can always descend in a straight line.

[0009] Preferably, the movable plate is slidably connected to the surfaces of the two limiting rods respectively, and one end of the spring overlaps with the inner wall of the moving groove, and the other end overlaps with the movable plate. When the movable plate moves upward, it can drive the spring to deform.

[0010] Preferably, the position of the pre-pressing plate corresponds to the position of the strip groove, and the pre-pressing plate is adapted to the strip groove. The pre-pressing plate can retract into the strip groove without affecting the normal pressing operation of the strip pressing block.

[0011] Preferably, the movable plate is rotatably connected to the adjusting screw on the side away from the adjusting top plate, and the inner walls of the pressing groove on the front, back, left and right sides are provided with strip-shaped through holes that are adapted to the adjusting top plate. After the adjusting screw is rotated, it can drive the movable plate to move in the cavity and can drive the adjusting top plate to extend into the interior of the pressing groove.

[0012] Preferably, the output end of the electric push rod is fixedly connected to the lower surface of the pressing plate, and the electric push rod can drive the pressing plate to perform lifting and lowering operations.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By setting up the pressing component, during use, the limiting rod can drive the limiting slider to descend within the limiting sleeve, ensuring that the strip pressing block always descends in a straight line, so that it will not deviate during the pressing process, resulting in higher stability. In addition, the pre-pressing plate can press the multi-layer circuit board before pressing, further improving the pressing quality of the circuit board and preventing misalignment.

[0015] 2. By adjusting the settings of the lead screw, moving plate, and adjusting top plate, after the multi-layer circuit board is placed in use, it can be rotated and adjusted. The moving plate will drive the adjusting top plate to move closer to the pressing groove, causing the four sides of the multi-layer circuit board to lock in position. This is more precise than manual operation by the operator. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a circuit board pressing device for preventing misalignment proposed in this utility model;

[0017] Figure 2 This is a front cross-sectional view of a circuit board pressing device for preventing misalignment proposed in this utility model.

[0018] Figure 3 This utility model proposes a circuit board pressing device to prevent misalignment. Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Workbench; 2. Support frame; 3. Hydraulic push rod; 4. Strip-shaped pressure block; 5. Limiting round rod; 6. Limiting sleeve; 7. Limiting slider; 8. Limiting rod; 9. Spring; 10. Movable plate; 11. Top rod; 12. Pre-pressure plate; 13. Positioning frame; 14. Pressing support plate; 15. Adjusting screw; 16. Moving plate; 17. Adjusting top plate; 18. Electric push rod. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Example 1, referring to Figure 1 , Figure 2 and Figure 3 A circuit board pressing device for preventing misalignment includes a worktable 1, a support frame 2 fixedly connected to the upper surface of the worktable 1, a hydraulic push rod 3 fixedly connected to the upper surface of the support frame 2, a pressing assembly fixedly connected to the output end of the hydraulic push rod 3, a positioning assembly fixedly connected to the upper surface of the worktable 1, the pressing assembly including a strip-shaped pressing block 4, four limiting round rods 5 fixedly connected to the upper surface of the strip-shaped pressing block 4, four limiting sleeves 6 fixedly connected to the lower surface of the support frame 2, a limiting slider 7 slidably connected to the inner wall of the limiting sleeve 6, the top end of the limiting round rod 5 extending into the interior of the limiting sleeve 6 and fixedly connected to the lower surface of the limiting slider 7, and a circular through hole adapted to the limiting round rod 5 opened at the bottom end of the limiting sleeve 6.

[0022] The lower surface of the strip-shaped pressure block 4 is provided with a strip-shaped groove. The inner top wall of the strip-shaped groove is provided with four sliding grooves. The left and right inner walls of the sliding grooves are provided with moving grooves. The inner top walls of the two moving grooves are fixedly connected with limit rods 8. The surface of the limit rods 8 is fitted with springs 9. The inner walls of the two moving grooves are slidably connected with movable plates 10. The movable plates 10 are slidably connected with the surfaces of the two limit rods 8 respectively. One end of the spring 9 overlaps with the inner wall of the moving groove, and the other end overlaps with the movable plate 10. The lower surface of the movable plate 10 is fixedly connected with top rods 11. The bottom ends of the four top rods 11 are fixedly connected with pre-pressing plates 12. The position of the pre-pressing plates 12 corresponds to the position of the strip-shaped grooves, and the pre-pressing plates 12 are adapted to the strip-shaped grooves.

[0023] During the descent of the strip-shaped pressure block 4 driven by the hydraulic push rod 3, the limiting slider 7 can be driven to descend linearly within the limiting sleeve 6 by the limiting round rod 5. This ensures that the strip-shaped pressure block 4 always descends in a straight line without any deviation, resulting in higher stability. Furthermore, the pre-pressing plate 12 can first contact the uppermost circuit board. After the pre-pressing plate 12 presses the multi-layer circuit board tightly, it ensures that the circuit board will not shift during pressing, thereby improving the pressing effect on the multi-layer circuit board.

[0024] The positioning assembly includes a positioning frame 13, with a pressing groove on the upper surface of the positioning frame 13. A pressing support plate 14 overlaps the inner bottom wall of the pressing groove. Adjusting screws 15 are threadedly connected to the front, back, left and right sides of the positioning frame 13. The positioning frame 13 has four cavities inside, with positioning grooves on the inner walls of the cavities. A moving plate 16 is slidably connected to the inner wall of the positioning groove. An adjusting top plate 17 is fixedly connected to the side of the moving plate 16. The side of the moving plate 16 away from the adjusting top plate 17 is rotatably connected to the adjusting screw 15. The inner walls of the pressing groove on the front, back, left and right sides are all provided with strip-shaped through holes that are adapted to the adjusting top plate 17. An electric push rod 18 is fixedly connected to the inner bottom wall of the worktable 1. The output end of the electric push rod 18 is fixedly connected to the lower surface of the pressing support plate 14.

[0025] Rotating the adjusting screw 15 can drive the adjusting top plate 17 to move closer to the pressing groove via the moving plate 16. The four adjusting top plates 17 can lock and squeeze the four sides of the multi-layer circuit board. The position of the circuit board is locked before pressing, thereby improving the pressing effect of the circuit board. At the same time, the electric push rod 18 can drive the pressing tray 14 to rise, which facilitates the staff to pick up and put down the material.

[0026] Working principle: First, the electric push rod 18 is opened, causing it to lift the pressing tray 14 to a higher position, facilitating the placement of the multilayer circuit board above it. After placement, the electric push rod 18 lowers the multilayer circuit board, while the operator rotates the four adjusting screws 15, causing the four adjusting top plates 17 to move closer to the pressing groove until the four adjusting top plates 17 press the sides of the multilayer circuit board, thus fixing its side position. At this point, the hydraulic push rod 3 lowers the strip-shaped pressure block 4, first bringing the pre-pressing plate 12 into contact with the uppermost circuit board. The pre-pressing plate 12 is then subjected to continuous pressure from the hydraulic push rod 3. Under downward pressure, after the circuit board is pressed, the pre-pressure plate 12 drives the top rod 11 to rise, thereby squeezing the spring 9 through the movable plate 10 to deform it until the pre-pressure plate 12 retracts into the strip groove. At this time, the strip pressure block 4 can perform a pressing operation on the multi-layer circuit board on the pressing support plate 14. During the descent of the strip pressure block 4, the limiting round rod 5 can drive the limiting slider 7 to descend within the limiting sleeve 6, thereby ensuring that the position of the strip pressure block 4 will not deviate. Therefore, in conjunction with the pre-pressure plate 12, it can ensure that the position of the multi-layer circuit board will not change when it is pressed, thus improving the pressing quality of the multi-layer circuit board.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circuit board pressing device for preventing misalignment, comprising a worktable (1), a support frame (2) fixedly connected to the upper surface of the worktable (1), a hydraulic push rod (3) fixedly connected to the upper surface of the support frame (2), a pressing assembly fixedly connected to the output end of the hydraulic push rod (3), and a positioning assembly fixedly connected to the upper surface of the worktable (1), characterized in that, The pressing assembly includes a strip-shaped pressing block (4), four limiting round rods (5) are fixedly connected to the upper surface of the strip-shaped pressing block (4), four limiting sleeves (6) are fixedly connected to the lower surface of the support frame (2), a limiting slider (7) is slidably connected to the inner wall of the limiting sleeve (6), a strip-shaped groove is opened on the lower surface of the strip-shaped pressing block (4), four sliding grooves are opened on the inner top wall of the strip-shaped groove, and a moving groove is opened on the left and right inner walls of the sliding groove. A limiting rod (8) is fixedly connected to the inner top wall of the two moving grooves, a spring (9) is sleeved on the surface of the limiting rod (8), a movable plate (10) is slidably connected to the inner wall of the two moving grooves, a top rod (11) is fixedly connected to the lower surface of the movable plate (10), and a pre-pressing plate (12) is fixedly connected to the bottom end of the four top rods (11). The positioning component includes a positioning frame (13), a pressing groove is provided on the upper surface of the positioning frame (13), a pressing support plate (14) is attached to the inner bottom wall of the pressing groove, and an adjusting screw (15) is threaded to the front, back and left and right sides of the positioning frame (13). The positioning frame (13) has four cavities inside, and a positioning groove is provided on the inner wall of the cavity. A moving plate (16) is slidably connected to the inner wall of the positioning groove, and an adjusting top plate (17) is fixedly connected to the side of the moving plate (16). An electric push rod (18) is fixedly connected to the inner bottom wall of the worktable (1).

2. The circuit board pressing device for preventing misalignment according to claim 1, characterized in that, The top end of the limiting rod (5) extends into the interior of the limiting sleeve (6) and is fixedly connected to the lower surface of the limiting slider (7). The bottom end of the limiting sleeve (6) is provided with a circular through hole that matches the limiting rod (5).

3. The circuit board pressing device for preventing misalignment according to claim 1, characterized in that, The movable plate (10) is slidably connected to the surfaces of the two limiting rods (8), and one end of the spring (9) overlaps with the inner wall of the moving groove, while the other end overlaps with the movable plate (10).

4. The circuit board pressing device for preventing misalignment according to claim 1, characterized in that, The position of the pre-pressing plate (12) corresponds to the position of the strip groove, and the pre-pressing plate (12) is adapted to the strip groove.

5. The circuit board pressing device for preventing misalignment according to claim 1, characterized in that, The movable plate (16) is rotatably connected to the adjusting screw (15) on the side away from the adjusting top plate (17), and the inner walls of the pressing groove on the front, back, left and right sides are provided with strip-shaped through holes that are compatible with the adjusting top plate (17).

6. The circuit board pressing device for preventing misalignment according to claim 1, characterized in that, The output end of the electric push rod (18) is fixedly connected to the lower surface of the pressing plate (14).

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