Punching device of printed circuit board

Abstract

The utility model discloses a punching device for a printed circuit board, which belongs to the technical field of circuit boards and comprises a bottom plate, a workbench is mounted at the upper end of the bottom plate, a printed circuit board fixing and clamping mechanism is mounted at the upper end of the workbench, a side plate is mounted on the side edge of the upper end of the bottom plate, and a heat dissipation mechanism is mounted in the side plate. According to the utility model, through the arrangement of the printed circuit board fixing and clamping mechanism, the printed circuit board fixing and clamping mechanism can be used for conveniently installing and fixing the printed circuit board, so that the punching work of the printed circuit board is convenient, and in addition, through the transmission mode of the transmission belt, the mechanism is convenient to operate, and the production efficiency is improved. Due to the fact that the heat dissipation mechanism is arranged, friction heat can be generated between the cutter and the printed circuit board in the punching process, the temperature of the surface of the printed circuit board is increased, and the heat dissipation mechanism can conveniently conduct heat dissipation and cooling on the printed circuit board.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards, and in particular relates to a punching device for a printed circuit board. Background Art

[0002] Flexible circuit boards, also known as soft circuit boards and flexible circuit boards, are highly favored for their excellent properties such as light weight, thin thickness, and free bending and folding. They are made of polyimide or polyester film as a substrate and are highly reliable and excellently flexible printed circuit boards. They have the characteristics of high wiring density, light weight, thin thickness, and good bending properties. The circuit board punching device is a cutting device that cuts the edges of the flexible printed circuit board to reach the specified size.

[0003] Chinese patent application No. 202210424106.9 discloses a punching device for a flexible printed circuit board, including a punching device body, the punching device body including a hydraulic rod, the top of the hydraulic rod is fixedly connected to a base, the bottom of the hydraulic rod is fixedly connected to a cutting head mechanism, and the bottom surface of the base is fixedly connected to a fixing mechanism. The present invention adopts the cooperation between a fixed seat, a rotating shaft, a rotating column, a buckle device, a cutter head and an elastic rod, and squeezes and moves the cutting head mechanism through the hydraulic rod, squeezes the circuit board through the fixed seat using the rotating column, and cuts the circuit board using the cutter head. Through the squeezing of the rotating column, the rotating column rotates through the rotating shaft to squeeze the elastic rod, and the elastic force of the elastic frame and the elastic ring inside the fixed cylinder is used to squeeze the movable cylinder, so that the pressure of the cutter head when cutting the circuit board becomes larger, the circuit board is cut, and the working efficiency of the device is improved.

[0004] Although the above-mentioned patent discloses that punching of printed circuit boards is achieved, the punching device for printed circuit boards provided therein is not convenient for quickly fixing the printed circuit boards to facilitate punching thereof; when punching of the printed circuit boards is performed by the punching device provided therein, friction heat will cause the surface temperature of the circuit boards to rise, thereby affecting product quality. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a punching device for a printed circuit board, which has the characteristics of being convenient for fixing and clamping the printed circuit board and facilitating heat dissipation and cooling of the punched printed circuit board.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a punching device for a printed circuit board, comprising a base plate, a workbench is installed on the upper end of the base plate, a printed circuit board fixing and clamping mechanism is installed on the upper end of the workbench, a side plate is installed on the upper side of the base plate, a heat dissipation mechanism is installed inside the side plate, a top plate is installed on the upper end of the side plate, a hydraulic rod is installed on the lower end of the top plate, a mounting plate is installed on the lower end of the hydraulic rod, a center rod is installed through the corner of the mounting plate, a limiting block is installed on the upper end of the center rod, a tool holder is installed on the lower end of the center rod, a spring is sleeved on the surface of the center rod located at the upper end of the tool holder, and a punching knife is installed on the lower end of the tool holder.

[0007] Preferably, the printed circuit board fixing and clamping mechanism includes a motor 1, a bidirectional screw, a sliding nut, a pulley 1, a transmission belt, a pulley 2, a splint and a block, wherein a motor 1 is installed inside one side of the upper end of the workbench, a bidirectional screw is installed at the output end of the motor 1, two groups of sliding nuts are symmetrically installed on the surface of the bidirectional screw, a splint is installed at the upper end of the sliding nut, a block is installed on the side of the splint, a pulley 1 is installed at the other end of the bidirectional screw, a transmission belt is meshedly installed on the surface of the pulley 1, a pulley 2 is meshedly installed on the other end of the transmission belt, and another group of bidirectional screws is installed on the side of the pulley 2.

[0008] Preferably, the outer surfaces of the pulley one and the pulley two are connected to the inner surface of the transmission belt by means of a flexible rack meshing transmission.

[0009] Preferably, a sliding groove corresponding to the sliding nut is provided at the upper end of the workbench and is slidably connected thereto.

[0010] Preferably, the heat dissipation mechanism includes a mounting seat, a screw, a second motor and a cooling fan, wherein the second motor is installed on the upper end of the side panel, the output end of the second motor is installed with a screw, the surface of the screw is threadedly connected with the mounting seat, and the cooling fan is installed inside the mounting seat.

[0011] Preferably, a sliding rod is installed through the other side of the mounting seat and is slidably connected thereto via a through hole.

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

[0013] 1. The utility model is provided with a printed circuit board fixing and clamping mechanism, which can facilitate the installation and fixing of the printed circuit board, thereby facilitating the punching of the printed circuit board. In addition, the mechanism can drive two sets of bidirectional screws to rotate synchronously through the transmission mode of the transmission belt.

[0014] 2. The utility model is provided with a heat dissipation mechanism. During the punching process, friction heat is generated between the cutter and the printed circuit board, causing the surface temperature of the printed circuit board to rise. The heat dissipation mechanism can facilitate cooling of the printed circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 A three-dimensional diagram of the position of the punching device of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the printed circuit board fixing and clamping mechanism of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the heat dissipation mechanism of the utility model;

[0019] In the figure: 1. bottom plate; 2. workbench; 3. printed circuit board fixing clamping mechanism; 31. motor 1; 32. bidirectional screw; 33. sliding nut; 34. pulley 1; 35. transmission belt; 36. pulley 2; 37. clamping plate; 38. stopper; 4. hydraulic rod; 5. top plate; 6. heat dissipation mechanism; 61. mounting seat; 62. screw; 63. motor 2; 64. sliding rod; 65. cooling fan; 7. side plate; 8. mounting plate; 9. punching knife; 10. knife holder; 11. spring; 12. center rod; 13. limit block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Example 1

[0022] See also Figure 1-4The utility model provides the following technical solutions: a punching device for a printed circuit board, comprising a bottom plate 1, a workbench 2 is installed on the upper end of the bottom plate 1, a printed circuit board fixing clamping mechanism 3 is installed on the upper end of the workbench 2, a side plate 7 is installed on the upper side of the bottom plate 1, a heat dissipation mechanism 6 is installed inside the side plate 7, a top plate 5 is installed on the upper end of the side of the side plate 7, a hydraulic rod 4 is installed on the lower end of the top plate 5, a mounting plate 8 is installed on the lower end of the hydraulic rod 4, a center rod 12 is installed through the corner of the mounting plate 8, a limiting block 13 is installed on the upper end of the center rod 12, a tool holder 10 is installed on the lower end of the center rod 12, a spring 11 is sleeved on the surface of the center rod 12 located at the upper end of the tool holder 10, and a punching knife 9 is installed on the lower end of the tool holder 10.

[0023] Specifically, the printed circuit board fixing and clamping mechanism 3 includes a motor 1 31, a bidirectional screw 32, a sliding nut 33, a pulley 1 34, a transmission belt 35, a pulley 2 36, a clamping plate 37 and a stopper 38, wherein a motor 1 31 is installed inside one side of the upper end of the workbench 2, a bidirectional screw 32 is installed at the output end of the motor 1 31, two groups of sliding nuts 33 are symmetrically installed on the surface of the bidirectional screw 32, a clamping plate 37 is installed on the upper end of the sliding nut 33, a stopper 38 is installed on the side of the clamping plate 37, a pulley 1 34 is installed on the other end of the bidirectional screw 32, a transmission belt 35 is meshedly installed on the surface of the pulley 1 34, a pulley 2 36 is meshedly installed on the other end of the transmission belt 35, and another group of bidirectional screws 32 is installed on the side of the pulley 2 36.

[0024] By adopting the above technical solution, the printed circuit board can be fixed and clamped conveniently.

[0025] Specifically, the outer surfaces of the pulley 1 34 and the pulley 2 36 are connected to the inner surface of the transmission belt 35 through a flexible rack meshing transmission.

[0026] By adopting the above technical solution, the two sets of bidirectional screw rods 32 can be driven to rotate synchronously.

[0027] Specifically, a sliding groove corresponding to the sliding nut 33 is provided at the upper end of the workbench 2 and is slidably connected thereto.

[0028] By adopting the above technical solution, the stability of the clamping plate 37 during the sliding process can be improved.

[0029] When the present embodiment is in use, the printed circuit board is first placed on the upper end of the workbench 2, and the motor 1 31 is turned on. The motor 1 31 drives the bidirectional screw 32 to rotate through the output end. The bidirectional screw 32 rotates to drive the two sets of sliding nuts 33 to approach each other. The two sets of sliding nuts 33 approach each other to drive the two sets of clamping plates 37 to fix the printed circuit board. At the same time, the bidirectional screw 32 rotates to drive the pulley 1 34 to rotate. The pulley 1 34 rotates to drive the transmission belt 35 to rotate. The transmission pulley 35 rotates to drive the pulley 2 36 to rotate. The pulley 2 36 rotates to drive another set of bidirectional screws 32 to rotate, thereby improving the stability of the sliding process of the clamping plate 37. Then, by opening the hydraulic rod 4, the hydraulic rod 4 drives the mounting plate 8 to descend. The mounting plate 8 descends to drive the tool holder 10 and the punching knife 9 to contact the printed circuit board. When continuing to descend, the tool holder 10 will drive the spring 11 on the surface of the center rod 12 to compress, thereby increasing the pressure of the punching knife 9 on the printed circuit board, so as to perform punching work on the printed circuit board.

[0030] Example 2

[0031] The difference between this embodiment and the first embodiment is that the heat dissipation mechanism 6 includes a mounting seat 61, a screw 62, a second motor 63 and a heat dissipation fan 65, wherein the second motor 63 is mounted on the upper end of the side plate 7, the output end of the second motor 63 is mounted on the screw 62, the surface of the screw 62 is threadedly connected and mounted with the mounting seat 61, and the heat dissipation fan 65 is mounted inside the mounting seat 61.

[0032] By adopting the above technical solution, the position of the heat dissipation fan 65 can be easily adjusted to dissipate heat and cool the printed circuit board and the punching knife 9.

[0033] Specifically, a slide bar 64 is installed through the other side of the mounting seat 61 and is slidably connected to the slide bar 64 through a through hole.

[0034] By adopting the above technical solution, the stability of the mounting seat 61 during the lifting and lowering process can be improved.

[0035] When this embodiment is in use, friction heat is generated between the tool and the printed circuit board during the punching process, causing the surface temperature of the printed circuit board to rise. At this time, by turning on the second motor 63, the second motor 63 drives the screw 62 to rotate through the output end, and the rotation of the screw 62 drives the mounting seat 61 to rise and fall, so as to drive the cooling fan 65 to move to the specified position, thereby facilitating the heat dissipation and cooling of the printed circuit board and the punching knife 9.

[0036] The working principle and use process of the utility model: when the utility model is in use, first place the printed circuit board on the upper end of the workbench 2, turn on the motor 1 31, the motor 1 31 drives the bidirectional screw 32 to rotate through the output end, the rotation of the bidirectional screw 32 drives the two sets of sliding nuts 33 to approach each other, the two sets of sliding nuts 33 approach each other and drive the two sets of clamps 37 to fix the printed circuit board, and at the same time, the rotation of the bidirectional screw 32 drives the pulley 1 34 to rotate, the rotation of the pulley 1 34 drives the transmission belt 35 to rotate, the rotation of the transmission pulley 35 drives the pulley 2 36 to rotate, the rotation of the pulley 2 36 drives another set of bidirectional screws 32 to rotate, thereby improving the stability of the sliding process of the clamp 37, and then by turning on the hydraulic Rod 4, hydraulic rod 4 drives the mounting plate 8 to descend, and the mounting plate 8 descends to drive the tool holder 10 and the punching knife 9 to contact the printed circuit board. When it continues to descend, the tool holder 10 will drive the spring 11 on the surface of the center rod 12 to be compressed, thereby increasing the pressure of the punching knife 9 on the printed circuit board, so as to perform punching work on the printed circuit board; since friction heat is generated between the tool and the printed circuit board during the punching process, causing the surface temperature of the printed circuit board to rise, at this time, by turning on the second motor 63, the second motor 63 drives the screw 62 to rotate through the output end, and the rotation of the screw 62 drives the mounting seat 61 to rise and fall, so as to drive the cooling fan 65 to move to the specified position, so as to facilitate the heat dissipation and cooling of the printed circuit board and the punching knife 9.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching device for a printed circuit board, comprising a bottom plate, characterized in that: A workbench is installed at the upper end of the base plate, a printed circuit board fixing clamping mechanism is installed at the upper end of the workbench, a side panel is installed on the upper side of the base plate, a heat dissipation mechanism is installed inside the side panel, a top panel is installed on the upper end of the side panel, a hydraulic rod is installed at the lower end of the top panel, a mounting plate is installed at the lower end of the hydraulic rod, a center rod is installed through the corner of the mounting plate, a limiting block is installed at the upper end of the center rod, a tool holder is installed at the lower end of the center rod, a spring is sleeved on the surface of the center rod located at the upper end of the tool holder, and a punching knife is installed at the lower end of the tool holder.

2. A printed circuit board punching device according to claim 1, characterized in that: The printed circuit board fixing and clamping mechanism includes a motor 1, a bidirectional screw, a sliding nut, a pulley 1, a transmission belt, a pulley 2, a clamp and a block, wherein a motor 1 is installed inside one side of the upper end of the workbench, a bidirectional screw is installed at the output end of the motor 1, two groups of sliding nuts are symmetrically installed on the surface of the bidirectional screw, a clamp is installed at the upper end of the sliding nut, a block is installed on the side of the clamp, a pulley 1 is installed at the other end of the bidirectional screw, a transmission belt is meshed and installed on the surface of the pulley 1, a pulley 2 is meshed and installed inside the other end of the transmission belt, and another group of bidirectional screws is installed on the side of the pulley 2.

3. A printed circuit board punching device according to claim 2, characterized in that: The outer surfaces of the first and second pulleys are connected to the inner surface of the transmission belt through a flexible rack meshing transmission.

4. A printed circuit board punching device according to claim 2, characterized in that: The upper end of the workbench is provided with a sliding groove corresponding to the sliding nut and is slidably connected therewith.

5. A printed circuit board punching device according to claim 1, characterized in that: The heat dissipation mechanism includes a mounting seat, a screw, a second motor and a heat dissipation fan, wherein the second motor is installed at the upper end of the side plate, the output end of the second motor is installed at the screw, the surface of the screw is threadedly connected to the mounting seat, and the heat dissipation fan is installed inside the mounting seat.

6. A printed circuit board punching device according to claim 5, characterized in that: A sliding rod is installed through the other side of the mounting seat and is slidably connected with the sliding rod through a through hole.

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