Limiting device for lamination of multilayer circuit board

Abstract

The utility model relates to the technical field of circuit board lamination, and discloses a limiting device for lamination of a multilayer circuit board, which comprises a lamination table and a metal sliding rod, a lamination device is mounted at the upper end of the lamination table, a clamping device is mounted at the lower end of the lamination table, and the metal sliding rod is fixedly connected inside the lower end of the lamination table. The clamping device comprises an electric push rod, a metal bracket and a limiting assembly, the limiting assembly is installed at the inward end of a piston rod in the electric push rod, and the limiting assembly is installed on the surface of the inner wall of the metal bracket. According to the limiting device for laminating the multilayer circuit board, the limiting insertion block, the spiral spring and the metal insertion block are arranged, the spiral spring starts to rebound, the spiral spring can push the limiting insertion block to move downwards, and the limiting insertion block slides on the surface of the inner wall of the metal frame, so that the limiting insertion block is inserted into the joint of the limiting plate and the metal insertion block; the limiting plate can be conveniently detached and replaced, and the joint of the limiting plate and the electric push rod can be prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board pressing, in particular to a limiting device for pressing multi-layer circuit boards. Background Technique

[0002] A circuit board is also called a printed circuit board. The names of printed circuit boards include: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, printed circuit board, PCB board, aluminum substrate, printed circuit board, etc. The circuit board miniaturizes and visualizes the circuit, and plays an important role in the mass production of fixed circuits and the optimization of the electrical appliance layout. A multi-layer board refers to a printed board with more than three conductive pattern layers and the insulating materials therebetween laminated with each other, and the conductive patterns therebetween are interconnected as required. The prior art discloses a limiting device for pressing multi-layer circuit boards with the application number: CN202220623377.2, which includes a workbench. On both sides of the upper surface of the workbench, two groups of brackets are fixedly installed. On one side of each of the two groups of brackets, a first push rod is fixedly installed. The output end of the first push rod penetrates through the bracket and is fixedly installed with a clamping plate. Above the two clamping plates, a pressing plate is arranged in a matching manner. On both sides of the bottom surface of the workbench, buffer components are symmetrically arranged. Between the two bottom rods, a column is fixedly installed. Two first sliding blocks are slidably connected to the column. A first spring is fixedly connected between one side of the first sliding block and one side of the bottom rod. When the first push rods on both sides of the workbench drive the two clamping plates to approach or move away from each other to limit and fix the multi-layer circuit board during pressing, the operation is simple and the working hours are saved. Through the arranged buffer components, the force during pressing is protected, and it is not easy for the multi-layer circuit board to be misaligned during pressing, reducing the scrap rate. The output end of the above-mentioned first push rod penetrates through the bracket and is fixedly installed with a clamping plate. When disassembling the first push rod, it is necessary to cut between the first push rod and the clamping plate so as to be able to disassemble and replace the first push rod. When cutting, it is easy to damage the clamping plate and the first push rod, and a lot of time is required for maintenance. Content of the Utility Model

[0003] The purpose of the utility model is to provide a limiting device for pressing multi-layer circuit boards to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A limiting device for pressing multi-layer circuit boards includes a pressing table and a metal sliding rod. A pressing device is installed at the upper end of the pressing table, a clamping device is installed at the lower end of the pressing table, and the metal sliding rod is fixedly connected to the inner part of the lower end of the pressing table.

[0005] The clamping device includes an electric push rod, a metal bracket and a limiting component. The limiting component is installed at the inward end of the piston rod inside the electric push rod and on the inner wall surface of the metal bracket.

[0006] Preferably, the limiting component includes a limiting plate, a metal insertion block, a limiting insertion block, a spiral spring, a connecting sliding rod and a connecting sliding plate. The metal insertion block is threadedly connected to the upper end of the connecting sliding plate. The limiting insertion block is inserted into the upper end of the metal insertion block. The limiting insertion block is fixedly connected to the inner end of the spiral spring. The limiting insertion block is slidably connected to the inner wall surface of the limiting plate. The connecting sliding rod is fixedly connected to the outer end of the limiting plate.

[0007] Preferably, the connecting sliding plate is slidably connected to the outer end surface of the metal sliding rod, and the connecting sliding plate is slidably connected to the lower end of the pressing table. The connecting sliding plate slides on the surface of the metal sliding rod, so as to maintain the balance of the connecting sliding plate and facilitate the adjustment of the position of the connecting sliding plate.

[0008] Preferably, the metal bracket is fixedly connected to the lower end of the pressing table, and the limiting plate is slidably connected to the lower end of the pressing table. The number of the metal brackets is two, and the two metal brackets are distributed left and right, so as to determine the position of the electric push rod and facilitate the disassembly and replacement of the electric push rod.

[0009] Preferably, the number of the metal insertion blocks is four. Two of the metal insertion blocks are in a group, and the two groups of metal insertion blocks are distributed left and right. The two metal insertion blocks on the same side are distributed front and back. The metal insertion blocks slide on the upper end of the connecting sliding plate, which is convenient for the disassembly and replacement of the metal insertion blocks and can increase the service time of the device.

[0010] Preferably, the limiting insertion block is slidably connected to the surface of the connecting sliding rod, and the spiral spring is fixedly connected to the inner wall surface of the limiting plate.

[0011] Preferably, the limiting plate is installed on the piston rod inside the electric push rod. The number of the limiting plates is two, and the two limiting plates are distributed left and right. The limiting plate slides on the lower end of the pressing table, so as to perform the pressing operation on the multi-layer circuit board.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. For the limiting device for pressing multi-layer circuit boards, by setting the limiting insertion block, the spiral spring and the metal insertion block, the spiral spring starts to rebound. The spiral spring can push the limiting insertion block to move downward. The limiting insertion block slides on the inner wall surface of the metal frame, so that the limiting insertion block is inserted into the connection between the limiting plate and the metal insertion block, which is convenient for the disassembly and replacement of the limiting plate and can prevent the connection between the limiting plate and the electric push rod from being damaged, thereby increasing the service time of the device.

[0014] 2. The multi-layer circuit board pressing limiting device is fixedly inserted between the limiting plate and the internal piston rod of the electric push rod, facilitating the detachment of the limiting plate from the electric push rod, so that different types of limiting plates can be used according to the specifications of the multi-layer circuit board, and the service life of the device can be increased. Brief Description of the Drawings

[0015] Figure 1 It is a three-dimensional schematic diagram of the whole of the present utility model;

[0016] Figure 2 For the present utility model Figure 1 It is a partially enlarged schematic diagram of the structure at A in the present utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the clamping device of the present utility model;

[0018] Figure 4 It is a top view schematic diagram of the clamping device of the present utility model;

[0019] Figure 5 For the present utility model Figure 4 It is a schematic cross-sectional view taken along the line A-A in the present utility model;

[0020] Figure 6 For the present utility model Figure 5 It is a partially enlarged schematic diagram of the structure at B in the present utility model.

[0021] In the figure: 1. Clamping device; 11. Electric push rod; 12. Metal bracket; 13. Limiting assembly; 131. Limiting plate; 132. Metal insert block; 133. Limiting insert block; 134. Helical spring; 135. Connecting slide bar; 136. Connecting slide plate; 2. Pressing device; 3. Pressing table; 4. Metal slide bar. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-6 , the present utility model provides the following technical solutions:

[0024] A limiting device for pressing a multi-layer circuit board includes a pressing table 3 and a metal slide bar 4. A pressing device 2 is installed at the upper end of the pressing table 3, a clamping device 1 is installed at the lower end of the pressing table 3, and the metal slide bar 4 is fixedly connected to the inner part of the lower end of the pressing table 3.

[0025] The clamping device 1 includes an electric push rod 11, a metal bracket 12 and a limiting component 13. The limiting component 13 is installed at the inward end of the piston rod inside the electric push rod 11, and the limiting component 13 is installed on the inner wall surface of the metal bracket 12.

[0026] The limiting component 13 includes a limiting plate 131, a metal insertion block 132, a limiting insertion block 133, a spiral spring 134, a connecting slide rod 135 and a connecting slide plate 136. The metal insertion block 132 is threadedly connected to the upper end of the connecting slide plate 136. The connecting slide plate 136 is slidably connected to the outward end surface of the metal slide rod 4, and the connecting slide plate 136 is slidably connected to the lower end of the pressing table 3. The connecting slide plate 136 slides on the surface of the metal slide rod 4, so as to maintain the balance of the connecting slide plate 136 and facilitate the adjustment of the position of the connecting slide plate 136. The limiting insertion block 133 is inserted into the upper end of the metal insertion block 132. The number of metal insertion blocks 132 is four. Two metal insertion blocks 132 form a group, and the two groups of metal insertion blocks 132 are distributed left and right. The two metal insertion blocks 132 on the same side are distributed front and back. The metal insertion blocks 132 slide on the upper end of the connecting slide plate 136, which is convenient for disassembling and replacing the metal insertion blocks 132 and can increase the service time of the device. The limiting insertion block 133 is fixedly connected to the inward end of the spiral spring 134. The limiting insertion block 133 is slidably connected to the surface of the connecting slide rod 135. The spiral spring 134 is fixedly connected to the inner wall surface of the limiting plate 131. The limiting insertion block 133 is slidably connected to the inner wall surface of the limiting plate 131. The metal bracket 12 is fixedly connected to the lower end of the pressing table 3. The limiting plate 131 is slidably connected to the lower end of the pressing table 3. The number of metal brackets 12 is two, and the two metal brackets 12 are distributed left and right, so as to determine the position of the electric push rod 11 and facilitate the disassembly and replacement of the electric push rod 11. The connecting slide rod 135 is fixedly connected to the outward end of the limiting plate 131. The limiting plate 131 is installed on the piston rod inside the electric push rod 11. The number of limiting plates 131 is two, and the two limiting plates 131 are distributed left and right. The limiting plate 131 slides on the lower end of the pressing table 3, so as to perform the pressing operation on the multi-layer circuit board.

[0027] When in use, push the metal insertion block 132 downward. The metal insertion block 132 slides on the threaded rod surface of the connecting slide plate 136, so as to connect the metal insertion block 132 and the connecting slide plate 136. Then rotate the nut, and the nut rotates on the threaded end surface of the connecting slide plate 136, so as to threadedly fix the connecting slide plate 136 and the metal insertion block 132.

[0028] Push the limiting plate 131 to slide on the lower end of the pressing table 3, so that the limiting plate 131 and the metal insertion block 132 are connected. At the same time, the metal insertion block 132 can push the limiting insertion block 133 upward, and the limiting insertion block 133 slides on the connecting slide rod 135 inside the limiting plate 131.

[0029] When the limit insertion block 133 slides inside the limit plate 131, the limit insertion block 133 can compress the spiral spring 134 inside the limit plate 131, and the position of the limit insertion block 133 can be adjusted.

[0030] When the inner side surfaces of the limit insertion block 133 and the limit plate 131 are aligned, the spiral spring 134 starts to rebound. The spiral spring 134 can push the limit insertion block 133 to move downward, so that the spiral spring 134 is inserted into the connection between the limit plate 131 and the metal insertion block 132, and the position of the limit plate 131 can be determined.

[0031] At this time, start the electric push rod 11 inside the metal bracket 12. The piston rod inside the electric push rod 11 is inserted into the outer end of the limit plate 131, so that the piston rod inside the electric push rod 11 can be inserted into the outer end of the limit plate 131.

[0032] Push the bolt downward. The bolt is inserted into the connection between the piston rod inside the electric push rod 11 and the limit plate 131, which is convenient for disassembling and replacing the limit plate 131.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A limiting device for laminating a multi-layer circuit board, comprising a laminating platform (3) and a metal slide bar (4), characterized in that: The upper end of the pressing platform (3) is provided with a pressing device (2), the lower end of the pressing platform (3) is provided with a clamping device (1), and the metal slide bar (4) is fixedly connected to the inside of the lower end of the pressing platform (3); The clamping device (1) comprises an electric push rod (11), a metal bracket (12) and a limit assembly (13); the limit assembly (13) is mounted on the inward end of the piston rod inside the electric push rod (11); and the limit assembly (13) is mounted on the inner wall surface of the metal bracket (12).

2. A multi-layer circuit board lamination limiting device according to claim 1, characterized in that: The limiting assembly (13) comprises a limiting plate (131), a metal plug (132), a limiting plug (133), a coil spring (134), a connecting slide rod (135) and a connecting slide plate (136); the metal plug (132) is threadedly connected to the upper end of the connecting slide plate (136); the limiting plug (133) is plugged into the upper end of the metal plug (132); the limiting plug (133) is fixedly connected to the inward end of the coil spring (134); the limiting plug (133) is slidably connected to the inner wall surface of the limiting plate (131); and the connecting slide rod (135) is fixedly connected to the outward end of the limiting plate (131).

3. A multi-layer circuit board lamination limiting device according to claim 2, characterized in that: The connecting slide plate (136) is slidably connected to the outward end surface of the metal slide rod (4), and the connecting slide plate (136) is slidably connected to the lower end of the pressing platform (3).

4. A multi-layer circuit board lamination limiting device according to claim 3, characterized in that: The metal bracket (12) is fixedly connected to the lower end of the pressing platform (3), and the limiting plate (131) is slidably connected to the lower end of the pressing platform (3).

5. A multi-layer circuit board lamination limiting device according to claim 4, characterized in that: The number of the metal plug blocks (132) is four, two of the metal plug blocks (132) form a group, the two groups of metal plug blocks (132) are distributed left and right, and the two metal plug blocks (132) on the same side are distributed front and back.

6. A multi-layer circuit board lamination limiting device according to claim 5, characterized in that: The limiting plug block (133) is slidably connected to the surface of the connecting slide rod (135), and the coil spring (134) is fixedly connected to the inner wall surface of the limiting plate (131).

7. A multi-layer circuit board lamination limiting device according to claim 6, characterized in that: The limit plate (131) is installed on the piston rod inside the electric push rod (11), and there are two limit plates (131), which are distributed on the left and right sides.

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