A cooling device for PCB laser processing

Abstract

This utility model provides a cooling device for laser processing of PCB boards, relating to the field of laser processing. The cooling device includes a worktable and a laser window drilling mechanism. Two telescopic tubes are fixedly installed at the top of the inner cavity of the worktable. A telescopic support assembly and an air guiding assembly are arranged between the two telescopic tubes. Multiple exhaust holes are opened at the bottom of each of the two telescopic tubes. A partition plate is fixedly installed inside the worktable, and a drawer is provided at the bottom of the partition plate. Two filters are fixedly inserted through one side of the drawer. After the airflow is discharged through the exhaust holes, it acts on the PCB board at the top of the template. Waste material cut by the laser window drilling mechanism falls into the drawer inserted at the bottom of the inner cavity of the worktable under the impact of the airflow, preventing material jamming. Furthermore, the high-speed airflow rapidly cools the cut edge of the PCB board, reducing the occurrence of black edges and scorching.

Description

Technical Field

[0001] This utility model relates to a cooling device, specifically a cooling device for laser processing of PCB boards, belonging to the field of laser processing technology. Background Technology

[0002] PCB board refers to a printed circuit board, which is an electronic component used to support and connect electronic components. PCB board realizes the electrical connection between electronic components through wires and connectors, and provides the necessary mechanical support to ensure that electronic components work reliably and communicate effectively. This type of circuit board is usually composed of a non-conductive substrate and a conductive layer covering it. The conductive layer is usually made of copper foil and the circuit pattern is formed by chemical etching or mechanical processing. With the expansion of the electrical appliance market, the demand for PCB board has surged, and PCB board processing equipment has also flourished.

[0003] For example, the utility model with patent application number 202421308235.2 discloses a laser window drilling device for PCB boards, which relates to the field of PCB board processing technology. It includes a worktable, with a surrounding frame fixedly connected to the upper surface of the worktable. A positioning mechanism is provided above the worktable. The positioning mechanism includes two marking grooves fixedly connected to the upper surface of the worktable, and a threaded rod is threadedly connected to the inner wall of each marking groove.

[0004] Taking the aforementioned PCB laser cutting equipment as an example, the cutting edge produced during the laser cutting of PCBs is extremely narrow, and the laser will cause high temperatures at the cutting edge on the PCB, which can easily lead to waste material getting stuck on the PCB. The waste material needs to be removed from the PCB later, which can easily cause secondary damage to the PCB. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a cooling device for laser processing of PCB boards to solve the above-mentioned problems, thereby addressing the issues of extremely narrow cutting edges during laser cutting of PCB boards in the prior art, and the high temperatures generated at the cutting edges on the PCB boards by the laser, which easily lead to waste materials getting stuck on the PCB boards.

[0007] (II) Technical Solution

[0008] This utility model is achieved through the following technical solution: a cooling device for laser processing of PCB board, including a worktable and a laser window drilling mechanism. Two telescopic tubes are fixedly installed on the top of the inner cavity of the worktable. A telescopic support assembly and an air guiding assembly are arranged between the two telescopic tubes. Multiple exhaust holes are opened at the bottom of the two telescopic tubes. A partition plate is fixedly installed inside the worktable. A drawer is provided at the bottom of the partition plate. Two filter screens are fixedly inserted on one side of the drawer.

[0009] Preferably, the laser window drilling mechanism is installed inside the workbench, the drawer is inserted into the workbench, and one side of the filter screen is located on the outside of the workbench.

[0010] Preferably, electromagnets are provided on both sides of the drawer, and the electromagnets are fixedly installed at the bottom of the inner cavity of the workbench.

[0011] Preferably, a pneumatic cylinder is fixedly connected to both sides of the top of the partition plate, a clamping plate is fixedly connected to the piston end of each of the two pneumatic cylinders, and a U-shaped plate is provided on one side of each of the two clamping plates, the U-shaped plate being fixedly installed on the top of the partition plate.

[0012] Preferably, the bottom of the U-shaped plate is provided with an installation cavity, the installation cavity is opened at the top of the partition plate, and a template is provided at the top of the inner cavity of the installation cavity.

[0013] Preferably, the telescopic support assembly includes two sealing plates and two connecting plates. The two sealing plates are respectively fixedly connected to one end of two telescopic tubes, and the two connecting plates are fixedly installed between the two sealing plates. A guide rod is provided on one side of one sealing plate, and a lead screw is provided on one side of the other sealing plate. A drive shaft is fixedly connected to the opposite side of each of the two sealing plates. A sliding block is fixedly connected to one end of each of the two drive shafts. One sliding block is installed on the outside of the lead screw through a nut pair, and the other sliding block is sleeved on the outside of the guide rod. A forward and reverse motor is fixedly connected to the rear side of the worktable. The output end of the forward and reverse motor is fixedly connected to the lead screw. A brake is sleeved on the outside of the lead screw, and the brake is fixedly connected to the worktable. Square slots are opened on both sides inside the worktable. The lead screw and the sliding block on the outside of the lead screw are both set in one of the square slots. The lead screw rotates through the worktable. The guide rod and the sliding block on the outside of the guide rod are both set in the other square slot. The guide rod is fixedly connected to the worktable.

[0014] Preferably, the air guiding assembly includes a blower located on the rear side of the workbench, an air guiding component fixedly connected to the air outlet of the blower, and two air guiding pipes fixedly connected to one side of the air guiding component. Both air guiding pipes are fixedly installed on the workbench, and the air guiding pipes correspond one-to-one with the telescopic pipes.

[0015] This utility model provides a cooling device for laser processing of PCB boards, which has the following beneficial effects:

[0016] 1. When this application is used, after the forward and reverse motors are in forward operation, the lead screw rotates clockwise. The sliding block installed on the outside of the lead screw through the nut pair moves inside the square groove. The two sealing plates move, and the two telescopic tubes extend. Multiple exhaust holes opened at the bottom of the telescopic tubes cover the top of the template. Under the action of the air guide and the two air guide tubes, the blower injects airflow into the two telescopic tubes. After the airflow is discharged through the exhaust holes, it acts on the PCB board on the top of the template. The waste material cut by the laser window drilling mechanism falls into the drawer inserted at the bottom of the workbench cavity under the impact of the airflow, avoiding the occurrence of material jamming. Moreover, the high-speed airflow quickly cools down the cut edge of the PCB board, reducing the occurrence of black edges and scorching, and increasing the flatness of the cutting edge.

[0017] 2. When using this application, the mounting cavity is opened on the top of the partition plate. The top of the convex-shaped mounting cavity, which is larger at the top and smaller at the bottom, is equipped with a template. The template cannot fall down. The template is installed on the top of the partition plate. The template has pre-set holes to meet the needs of cutting holes and windows on the PCB board. The template can be quickly replaced by installing it through the mounting cavity, ensuring the flexibility and convenience of PCB board processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the workbench of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the sealing plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the U-shaped plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the drawer structure of this utility model.

[0023] [Explanation of Key Component Symbols]

[0024] 1. Workbench; 2. Laser window opening and drilling mechanism; 3. Sealing plate; 4. Telescopic tube; 5. Exhaust port; 6. Blower; 7. Air guide; 8. Air guide pipe; 9. Connecting plate; 10. Drive shaft; 11. Sliding block; 12. Lead screw; 13. Forward and reverse motor; 14. Brake; 15. Divider plate; 16. Guide rod; 17. Square slot; 18. Drawer; 19. Filter screen; 20. Electromagnet; 21. Clamping plate; 22. Mounting cavity; 23. Template; 24. U-shaped plate; 25. Pneumatic cylinder. Detailed Implementation

[0025] This utility model provides a cooling device for laser processing of PCB boards.

[0026] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The system includes a workbench 1 and a laser window drilling mechanism 2. Two telescopic tubes 4 are fixedly installed on the top of the inner cavity of the workbench 1. A telescopic support assembly and an air guide assembly are provided between the two telescopic tubes 4. Multiple exhaust holes 5 are opened at the bottom of the two telescopic tubes 4. A partition plate 15 is fixedly installed inside the workbench 1. A drawer 18 is provided at the bottom of the partition plate 15. Two filter screens 19 are fixedly inserted on one side of the drawer 18.

[0027] In use, the laser window drilling mechanism 2 is installed inside the workbench 1. The laser window drilling mechanism 2 is used for laser cutting of PCB boards. The specific working principle of the laser window drilling mechanism 2 is a publicly available technology and will not be described in detail here. For details, please refer to the patent document with announcement number: CN222552486U.

[0028] Pneumatic cylinders 25 are fixedly connected to both sides of the top of the partition plate 15. Clamping plates 21 are fixedly connected to the piston ends of the two pneumatic cylinders 25. The two clamping plates 21 are symmetrically arranged on both sides of the top of the partition plate 15. U-shaped plates 24 are provided on the opposite side of the two clamping plates 21. Both U-shaped plates 24 are fixedly installed on the top of the partition plate 15. The bottom of the U-shaped plates 24 is provided with an installation cavity 22. The installation cavity 22 is opened on the top of the partition plate 15. The top of the convex-shaped installation cavity 22, which is larger at the top and smaller at the bottom, is provided with a template 23. The template 23 cannot fall down. The template 23 is installed on the top of the partition plate 15. The template 23 has pre-set holes to meet the needs of cutting holes and windows on the PCB board. The template 23 can be quickly replaced by installing it through the installation cavity 22, ensuring the flexibility and convenience of PCB board processing.

[0029] After the PCB board is placed inside the U-shaped plate 24, the pneumatic cylinder 25 is controlled to push the clamping plate 21 to move toward the PCB board. With the cooperation of the clamping plate 21 and the U-shaped plate 24, the PCB board is fixed.

[0030] After the PCB board is fixed, the forward and reverse motors 13 in the telescopic support assembly are first controlled to rotate forward. Since the two sealing plates 3 in the telescopic support assembly are respectively fixedly connected to one end of the two telescopic tubes 4, and one end of the telescopic tube 4 is sealed by the sealing plates 3, and the two connecting plates 9 are fixedly installed between the two sealing plates 3, the two sealing plates 3 move synchronously. Furthermore, since a drive shaft 10 is fixedly connected to the side of each of the two sealing plates 3 that is furthest from each other, and a sliding block 11 is fixedly connected to the side of each of the two drive shafts 10 that is furthest from each other, and a guide rod 16 is provided on one side of one of the sealing plates 3, and one sliding block 11 is sleeved on the guide rod 16. A lead screw 12 is provided on one side of another sealing plate 3 outside the rod 16, and another sliding block 11 is installed on the outside of the lead screw 12 through a nut pair. Square slots 17 are provided on both sides of the inside of the worktable 1. The lead screw 12 and the sliding block 11 on the outside of the lead screw 12 are both set in one of the square slots 17. The guide rod 16 and the sliding block 11 on the outside of the guide rod 16 are both set in the other square slot 17. The guide rod 16 and the sliding block 11 are fixedly connected. Therefore, the two sliding blocks 11 can only move horizontally inside the square slots 17, and the two sealing plates 3 move horizontally synchronously.

[0031] Furthermore, the lead screw 12 is rotatably mounted on the workbench 1. The output end of the forward and reverse motor 13, which is fixedly connected to the rear side of the workbench 1, is fixedly connected to the lead screw 12. Therefore, after the forward and reverse motor 13 is controlled to rotate forward, the lead screw 12 rotates clockwise. The sliding block 11 installed on the outside of the lead screw 12 through the nut pair moves inside the square groove 17. The two sealing plates 3 move, and the two telescopic tubes 4 extend. The multiple exhaust holes 5 opened at the bottom of the telescopic tubes 4 cover the top of the template 23.

[0032] Subsequently, the laser window drilling mechanism 2 is controlled to process the PCB board according to the preset program. At the same time, the blower 6, which is set on the rear side of the worktable 1 in the air guide component, is controlled to work. Two air guide pipes 8 are fixedly connected to one side of the air guide component 7 at the air outlet of the blower 6. Both air guide pipes 8 are fixedly installed on the worktable 1. The air guide pipes 8 correspond one-to-one with the telescopic pipes 4. Under the action of the air guide component 7 and the two air guide pipes 8, the blower 6 injects airflow into the two telescopic pipes 4. After the airflow is discharged through the exhaust hole 5, it acts on the PCB board on the top of the template 23. The waste material cut by the laser window drilling mechanism 2 falls into the drawer 18 inserted at the bottom of the inner cavity of the worktable 1 under the impact of the airflow, avoiding the occurrence of material jamming. Moreover, the high-speed airflow quickly cools down the cut edge of the PCB board, reducing the occurrence of black edges and scorching, and increasing the flatness of the cutting edge.

[0033] A drawer 18 is inserted into the bottom of the inner cavity of the workbench 1. The top of the drawer 18 abuts against the partition plate 15. Two filters 19 are fixedly installed on the side of the drawer 18 located outside the workbench 1. The filter 19 is located on the outside of the workbench 1. While the air flows inside and outside the workbench 1, the filter 19 traps debris and impurities inside the drawer 18. Waste blown down by the airflow falls into the drawer 18, completing the collection of waste. Electromagnets 20 are installed on both sides of the drawer 18. The electromagnets 20 are fixedly installed at the bottom of the inner cavity of the workbench 1. When the electromagnets 20 are working, they are attracted and fixed to the iron drawer 18 by magnetic force. When the electromagnets 20 are stopped, the drawer 18 is released and pulled out.

[0034] A brake 14 is fitted on the outside of the lead screw 12. The brake 14 is fixedly connected to the worktable 1. When the forward and reverse motor 13 stops working, the brake 14 is controlled to brake the lead screw 12, ensuring the stability of the telescopic tube 4.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cooling device for laser processing of PCB boards, comprising a worktable (1) and a laser window drilling mechanism (2), characterized in that: Two telescopic tubes (4) are fixedly installed on the top of the inner cavity of the workbench (1). A telescopic support assembly and an air guide assembly are provided between the two telescopic tubes (4). Multiple exhaust holes (5) are opened at the bottom of the two telescopic tubes (4). A partition plate (15) is fixedly installed inside the workbench (1). A drawer (18) is provided at the bottom of the partition plate (15). Two filter screens (19) are fixedly inserted on one side of the drawer (18).

2. The cooling device for laser processing of PCB boards according to claim 1, characterized in that: The laser window drilling mechanism (2) is installed inside the workbench (1), the drawer (18) is inserted into the workbench (1), and the filter screen (19) is located on the outside of the workbench (1).

3. The cooling device for laser processing of PCB boards according to claim 1, characterized in that: Electromagnets (20) are provided on both sides of the drawer (18), and the electromagnets (20) are fixedly installed at the bottom of the inner cavity of the workbench (1).

4. The cooling device for laser processing of PCB boards according to claim 1, characterized in that: Both sides of the top of the partition plate (15) are fixedly connected to pneumatic cylinders (25), and the piston ends of the two pneumatic cylinders (25) are fixedly connected to clamping plates (21). A U-shaped plate (24) is provided on one side of each clamping plate (21), and the U-shaped plate (24) is fixedly installed on the top of the partition plate (15).

5. The cooling device for laser processing of PCB boards according to claim 4, characterized in that: The bottom of the U-shaped plate (24) is provided with an installation cavity (22), which is opened at the top of the partition plate (15). A template (23) is provided at the top of the inner cavity of the installation cavity (22).

6. The cooling device for laser processing of PCB boards according to claim 1, characterized in that: The telescopic support assembly includes two sealing plates (3) and two connecting plates (9). The two sealing plates (3) are respectively fixedly connected to one end of two telescopic tubes (4), and the two connecting plates (9) are fixedly installed between the two sealing plates (3). A guide rod (16) is provided on one side of one of the sealing plates (3), and a lead screw (12) is provided on one side of the other sealing plate (3). A drive shaft (10) is fixedly connected to the side of each of the two sealing plates (3) that is away from each other. A sliding block (11) is fixedly connected to one end of each of the two drive shafts (10). One sliding block (11) is installed on the outside of the lead screw (12) by a nut pair, and the other sliding block (11) is sleeved on the outside of the guide rod (16). A forward and reverse motor (13) is fixedly connected to the rear side of the worktable (1). The output end of the forward and reverse motor (13) is fixedly connected to the lead screw (12). A brake (14) is sleeved on the outside of the lead screw (12). The brake (14) is fixedly connected to the worktable (1). Square slots (17) are opened on both sides inside the worktable (1). The lead screw (12) and the sliding block (11) on the outside of the lead screw (12) are both set inside one of the square slots (17). The lead screw (12) rotates through the worktable (1). The guide rod (16) and the sliding block (11) on the outside of the guide rod (16) are both set inside the other square slot (17). The guide rod (16) is fixedly connected to the worktable (1).

7. The cooling device for laser processing of PCB boards according to claim 1, characterized in that: The air guiding assembly includes a blower (6) provided on the rear side of the workbench (1), an air guiding component (7) fixedly connected to the air outlet of the blower (6), and two air guiding pipes (8) fixedly connected to one side of the air guiding component (7). The two air guiding pipes (8) are fixedly installed on the workbench (1), and the air guiding pipes (8) correspond one-to-one with the telescopic pipes (4).

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