Circuit board pressing device

Abstract

The utility model relates to the field of circuit board production devices, in particular to a circuit board pressing device which comprises a table top, a rotary table is arranged above the table top and driven by a motor to rotate, a plurality of fixing plates are evenly fixed to the rotary table, and a plurality of positioning devices are fixed to the fixing plates. The positioning device comprises a positioning pipe fixed to the fixing plate, a positioning rod which penetrates through the positioning pipe and is in sliding connection with the positioning pipe is arranged on the positioning pipe, a positioning plate is fixed to the positioning rod in the positioning pipe, a positioning spring is fixed to the position, below the positioning plate, in the positioning pipe, a top plate is further fixed to the upper portion of the table top, and the top plate is fixed to the upper portion of the table top. An air cylinder is fixed to the top plate, a supporting plate is fixed to the tail end of a piston rod of the air cylinder, a supporting ring is arranged below the supporting plate, a plurality of limiting rods are fixed to the supporting ring, the limiting rods penetrate through the supporting plate and are in sliding connection with the supporting plate, and a pressing plate is further fixed below the supporting plate. According to the device, the circuit board can be subjected to press-fit operation.

Description

Technical Field

[0001] This invention relates to the field of circuit board manufacturing equipment, and more particularly to a circuit board pressing device. Background Technology

[0002] Multilayer circuit board lamination refers to the process of stacking multiple single-layer circuit boards (also known as circuit boards or printed circuit boards) together using certain methods and processes, and applying appropriate pressure to fix them. This process aims to connect the circuits of multiple single-layer circuit boards to form a whole multilayer circuit board structure.

[0003] In actual manufacturing, traditional multilayer circuit boards are usually stacked and transported manually before being stacked and pressed. A pressing mechanism is then used to press the circuit boards together, and the processed circuit boards are then picked up manually.

[0004] Patent application number CN202320148557.4 discloses a circuit board pressing fixture, including a main body, an adjustment mechanism, and a pressing mechanism. The pressing mechanism includes a lower fixture, a limiting ring, a positioning column, a lower pressing groove, a support frame, a support crossbar, an electric push rod, a pushing rod, an upper fixture, a positioning hole, and an upper pressing groove. The lower fixture is fixedly installed on the upper end of the work panel, and the limiting ring is fixedly installed on the upper end of the lower fixture. The circuit board is placed on the lower fixture, and the electric push rod is activated to push the pushing rod down, causing it to push the upper fixture to press the circuit board on the lower fixture. However, with this type of device, after the circuit board is pressed, it needs to be removed and placed before the next pressing can begin, which seriously affects the pressing efficiency of the circuit board.

[0005] This invention was developed to address the shortcomings of existing technologies. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circuit board pressing device.

[0007] This invention can be achieved through the following technical solutions:

[0008] This invention discloses a circuit board pressing device, comprising a table, a turntable above the table, the turntable being driven to rotate by a motor, multiple fixing plates evenly fixed on the turntable, and multiple positioning devices fixed on the fixing plates, each positioning device comprising a positioning tube fixed to the fixing plate, a positioning rod passing through the positioning tube and slidably connected to the positioning tube, a positioning plate fixed on the positioning rod inside the positioning tube, a positioning spring fixed inside the positioning tube below the positioning plate, a top plate fixed above the table, a cylinder fixed on the top plate, a support plate fixed to the end of the piston rod of the cylinder, a support ring below the support plate, multiple limiting rods fixed on the support ring, the limiting rods passing through the support plate and slidably connected to the support plate, multiple limiting springs fixed between the support plate and the support ring, and a pressure plate fixed below the support plate. The circuit board to be pressed is placed on the fixed plate. After the positioning rod of the positioning device contacts the edge of the circuit board, it is positioned and fixed. The motor drives the turntable to rotate, and the fixed plate rotates with the turntable. After the turntable rotates to a certain angle, another fixed plate reaches the designated position, and the circuit board to be pressed is placed on the other fixed plate. When the circuit board to be pressed rotates to be under the pressure plate, the cylinder is activated, the piston rod on the cylinder extends, the support plate descends, and the support ring descends with the support plate. After the support ring contacts each positioning rod, it pushes each positioning rod to move. After the positioning rods descend, the circuit board to be pressed is fixed inside the support ring. The pressure plate continues to descend, and after the pressure plate contacts the circuit board, it performs the pressing operation. After the circuit board is pressed, the cylinder is activated, the piston rod on the cylinder shortens, the pressure plate rises, and after the pressure plate separates from the circuit board, the support ring rises with the support plate. After the support ring rises, the positioning spring pushes the positioning plate and the positioning rod to rise. The motor then drives the turntable to rotate at a certain angle, pressing the circuit board again. This process is repeated. When the pressed circuit board reaches the designated position, it is removed, and the next circuit board to be pressed is placed on the fixed plate. This process is repeated. This device can press circuit boards, and the positions for placing and removing the circuit boards are not the same as the pressing position. During the pressing process, the pressed circuit board is removed and the next circuit board to be pressed is placed, allowing for continuous pressing and greatly improving the pressing efficiency. Furthermore, during the pressing process, the circuit board is positioned and fixed within the support ring, preventing displacement and ensuring the pressing quality.

[0009] Preferably, each positioning rod has a metal positioning block fixed to its bottom, and an electromagnet is fixed on the platform at a position corresponding to the positioning block. The pressed circuit board rotates with the fixing plate to the position of the electromagnet. When the electromagnet is energized, it generates magnetism, attracting the positioning block and causing it to descend. The positioning rod descends with the positioning block until it reaches below the fixing plate, at which point the pressed circuit board is removed. After the circuit board is removed, the electromagnet stops being energized, the positioning rod rises, and another circuit board to be pressed is placed on the fixing plate.

[0010] Preferably, a limit block is fixed to the top of each limiting rod.

[0011] Preferably, multiple support strips are fixed on the platform below the support plate, and multiple ball bearings are evenly arranged on the upper end of the support strips. During circuit board pressing, the ball bearings support the bottom of the fixed plate to prevent the turntable from being stressed.

[0012] Compared with existing technologies, the present invention has the following advantages:

[0013] This device can perform circuit board pressing operations. The positions for placing and removing the circuit board are not in the same place as the pressing position. During circuit board pressing, the pressed circuit board is removed and the circuit board to be pressed is placed, which can achieve continuous pressing of the circuit board, greatly improving the pressing efficiency. In addition, during the pressing, the circuit board is inside the support ring, which positions and fixes the circuit board, preventing the circuit board from shifting during pressing and ensuring the pressing quality. Attached Figure Description

[0014] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention from another angle;

[0017] Figure 3 for Figure 2 Sectional view at point AA;

[0018] Figure 4 for Figure 3 Enlarged view at point B in the middle;

[0019] In the diagram: 1. Tabletop; 2. Turntable; 3. Fixing plate; 4. Motor; 5. Positioning device; 6. Positioning tube; 7. Positioning rod; 8. Positioning plate; 9. Positioning spring; 10. Positioning block; 11. Electromagnet; 12. Top plate; 13. Cylinder; 14. Support plate; 15. Support ring; 16. Limiting rod; 17. Limiting spring; 18. Limiting block; 19. Pressure plate; 20. Support bar; 21. Ball bearing; Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:

[0021] Example 1:

[0022] like Figures 1 to 4As shown, this embodiment discloses a circuit board pressing device, including a table 1, a turntable 2 above the table 1, the turntable 2 being driven to rotate by a motor 4, a plurality of fixing plates 3 being evenly fixed on the turntable 2, a plurality of positioning devices 5 being fixed on the fixing plates 3, the positioning device 5 including a positioning tube 6 fixed on the fixing plate 3, a positioning rod 7 being provided on the positioning tube 6 passing through the positioning tube 6 and slidably connected to the positioning tube 6, a positioning plate 8 being fixed on the positioning rod 7 inside the positioning tube 6, a positioning spring 9 being fixed inside the positioning tube 6 below the positioning plate 8, a top plate 12 being fixed above the table 1, a cylinder 13 being fixed on the top plate 12, a support plate 14 being fixed to the end of the piston rod of the cylinder 13, a support ring 15 being provided below the support plate 14, a plurality of limiting rods 16 being fixed on the support ring 15, the limiting rods 16 passing through the support plate 14 and slidably connected to the support plate 14, a plurality of limiting springs 17 being fixed between the support plate 14 and the support ring 15, and a pressure plate 19 being fixed below the support plate 14. The circuit board to be pressed is placed on the fixed plate 3. After the positioning rod 7 of the positioning device 5 contacts the edge of the circuit board, it is positioned and fixed. The motor 4 drives the turntable 2 to rotate, and the fixed plate 3 rotates with the turntable 2. After the turntable 2 rotates a certain angle, another fixed plate 3 reaches the designated position, and the circuit board to be pressed is placed on the other fixed plate 3. When the circuit board to be pressed rotates to below the pressure plate 19, the cylinder 13 is activated, the piston rod on the cylinder 13 extends, the support plate 14 descends, and the support ring 15 descends with the support plate 14. After the support ring 15 contacts each positioning rod 7, it pushes each positioning rod 7 to move. After the positioning rod 7 descends, the circuit board to be pressed is fixed inside the support ring 15. The pressure plate 19 continues to descend. After the pressure plate 19 contacts the circuit board, it performs the pressing operation. After the circuit board is pressed, the cylinder 13 is activated, the piston rod on the cylinder 13 shortens, the pressure plate 19 rises, and the pressure plate 19 separates from the circuit board. After separation, the support ring 15 rises with the support plate 14. After the support ring 15 rises, the positioning spring 9 pushes the positioning plate 8 to rise, the positioning rod 7 rises, and the motor 4 drives the turntable 2 to rotate a certain angle again to perform the pressing operation on the circuit board again. The operation is repeated. When the pressed circuit board reaches the designated position, the pressed circuit board is removed and the circuit board to be pressed is placed on the fixed plate 3 again. The operation is repeated. This device can realize the pressing operation of the circuit board, and the position of placing and removing the circuit board is not in the same place as the pressing position of the circuit board. When the circuit board is pressed, the pressed circuit board is removed and the circuit board to be pressed is placed, which can realize the continuous pressing of the circuit board, greatly improving the pressing efficiency of the circuit board. In addition, when the circuit board is pressed, the circuit board is inside the support ring 15. The support ring 15 positions and fixes the circuit board, which can prevent the circuit board from shifting during the pressing and ensure the pressing quality.

[0023] Each positioning rod 7 has a metal positioning block 10 fixed to its bottom, and an electromagnet 11 is fixed on the platform 1 at the position corresponding to the positioning block 10. The pressed circuit board rotates with the fixing plate 3 to the position of the electromagnet 11. When the electromagnet 11 is energized, it generates magnetism, and the positioning block is attracted by the electromagnet 11 and descends. The positioning rod 7 descends with the positioning block 10. When the positioning rod 7 descends below the fixing plate 3, the pressed circuit board is removed. After the circuit board is removed, the electromagnet 11 stops being energized, the positioning rod 7 rises, and the circuit board to be pressed is placed on the fixing plate 3 again.

[0024] Each of the limiting rods 16 has a limiting block 18 fixed to its top.

[0025] Example 2:

[0026] This embodiment discloses a circuit board pressing device. Based on the structure and principle of embodiment 1, this embodiment further includes multiple support bars 20 fixed on the platform 1 below the support plate 14, with multiple ball bearings 21 evenly arranged on the upper end of each support bar 20. During circuit board pressing, the ball bearings 21 support the bottom of the fixed plate 3, preventing the turntable 2 from being subjected to stress.

[0027] The above are merely preferred embodiments of the present invention. It should be noted that, for those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, substitutions and variations should also be considered within the scope of protection of the present invention.

Claims

1. A circuit board pressing device, characterized in that, The device includes a tabletop, on which a turntable is mounted. The turntable is driven to rotate by a motor. Multiple fixing plates are evenly fixed on the turntable, and multiple positioning devices are fixed on the fixing plates. Each positioning device includes a positioning tube fixed to the fixing plate, and a positioning rod passing through and slidably connected to the positioning tube. A positioning plate is fixed to the positioning rod inside the positioning tube. A positioning spring is fixed inside the positioning tube below the positioning plate. A top plate is also fixed above the tabletop, and a cylinder is fixed to the top plate. A support plate is fixed to the end of the piston rod of the cylinder. A support ring is mounted below the support plate, and multiple limiting rods are fixed to the support ring. The limiting rods pass through the support plate and slidably connected to the support plate. Multiple limiting springs are also fixed between the support plate and the support ring. A pressure plate is also fixed below the support plate.

2. The circuit board laminating device according to claim 1, characterized in that, Each positioning rod has a metal positioning block fixed to its bottom, and an electromagnet is fixed on the platform at the position corresponding to the positioning block.

3. The circuit board laminating device according to claim 1, characterized in that, Each of the limiting rods has a limiting block fixed to its top.

4. The circuit board laminating device according to claim 1, characterized in that, Multiple support bars are fixed on the platform below the support plate, and multiple ball bearings are evenly arranged on the upper end of the support bars.

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