A punching device for PCB processing and a punching method thereof

Abstract

The application discloses a punching device for PCB processing and a punching method thereof, and relates to the field of PCB production. The punching device is used for solving the problem that the existing punching device is easy to cause the PCB to be damaged by bending when the PCB is pressed down to perform a punching process operation, because the PCB has a certain brittleness. The middle part of the upper end of the bottom plate is connected with C-shaped supporting rods on both sides, the front and rear ends of the lower end of the C-shaped supporting rods are connected with lifting barrels, the front and rear ends of the two sides of the upper end of the bottom plate are fixedly connected with vertical rods, the upper and lower ends between the two vertical rods on the two sides of the bottom plate are fixedly connected with fixed horizontal rods, driving devices are connected between every two fixed horizontal rods, the middle part of the two rectangular limiting rods at the upper end between the two driving devices is connected with a top supporting assembly, the middle part of the lower end of the top supporting assembly is fixedly connected with an electric telescopic rod, and the lower end of the electric telescopic rod is fixedly connected with a punching device.

Description

Technical Field

[0001] This invention relates to the field of PCB manufacturing, specifically to a drilling device and method for PCB processing. Background Technology

[0002] PCB stands for Printed Circuit Board, an indispensable part of the modern electronics industry. A PCB is a circuit board formed by coating a conductive material (copper foil) onto a non-conductive material (usually glass fiber reinforced plastic). It has a wide range of applications, from computers and mobile phones to automotive electronics and medical devices.

[0003] PCB board manufacturing requires a drilling process. Due to the brittleness of PCB boards, existing drilling devices can easily cause the PCB boards to bend and be damaged when pressing them down during the drilling process. Therefore, there is an urgent need in the market to develop a drilling device for PCB board processing to help people solve the existing problems. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling device for PCB board processing, in order to solve the problem mentioned in the background art that the PCB board needs to be drilled during the reprocessing of the PCB board. Due to the brittleness of the PCB board, the existing drilling device is prone to bending and damage to the PCB board when pressing it down to perform the drilling operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a drilling device for PCB board processing, comprising a base plate, wherein first T-shaped limiting grooves are provided at both the front and rear ends of the upper end of the base plate, C-shaped support rods are connected to both sides of the middle portion of the upper end of the base plate, lifting buckets are connected to both the front and rear ends of the lower ends of the C-shaped support rods, uprights are fixedly connected to both the front and rear ends of both sides of the upper end of the base plate, and fixed crossbars are fixedly connected to both the upper and lower ends of the two uprights on both sides of the base plate, a driving device is connected between every two fixed crossbars, a first rotating shaft is rotatably connected to the middle portion of the drive device, rectangular limiting rods are fixedly connected to both the front and rear ends of the upper and lower ends of the two drive devices, and screws are rotatably connected to both the upper and lower ends of the two drive devices in the middle portion between the two rectangular limiting rods, and a screw is fixedly connected to the middle portion of one side of one drive device. The device includes a motor housing, inside which a first servo motor is fixedly installed. A bottom support assembly is connected to the middle of the two rectangular limit rods at the lower end between the two drive devices. A support tube is fixedly connected to the middle of the upper end of the bottom support assembly, and a first buffer washer is fixedly connected to the upper end of the support tube. A cleaning port is provided at the front end of the support tube. A top support assembly is connected to the middle of the two rectangular limit rods at the upper end between the two drive devices. An electric telescopic rod is fixedly connected to the middle of the lower end of the top support assembly. A drilling device is fixedly connected to the lower end of the electric telescopic rod. A motor slot is provided inside the drilling device, and a drilling motor is installed inside the motor slot. A telescopic groove is provided at the lower end of the drilling device, and a second spring is fixedly connected inside the telescopic groove. A telescopic tube is connected inside the telescopic groove, and a drilling bit is provided in the middle of the telescopic tube.

[0006] Preferably, each of the lifting buckets is provided with a first spring inside, and the front and rear ends of the lower end of the C-shaped support rod are inserted into the upper end of the lifting bucket for movable connection. The lower end of each lifting bucket is fixedly connected with a first T-shaped limiting part, and the two lower ends of the first T-shaped limiting parts of the two lifting buckets at the front and rear ends of the lower end of the C-shaped support rod are respectively inserted into the first T-shaped limiting grooves at the front and rear ends of the upper end of the base plate for limiting connection.

[0007] Preferably, each of the fixed crossbars is provided with a second T-shaped limiting groove on its inner side, and the upper and lower ends of the driving device are fixedly connected with second T-shaped limiting parts. The second T-shaped limiting parts at the upper and lower ends of the driving device are respectively inserted into the second T-shaped limiting grooves on the inner sides of the two fixed crossbars at the upper and lower ends for limiting connection.

[0008] Preferably, the first rotating shaft is fixedly connected to the upper and lower ends with a first conical tooth, and the first rotating shaft is fixedly connected to the middle with a second conical tooth.

[0009] Preferably, the output shaft of the first servo motor extends into the drive device and is fixedly connected to a fourth conical tooth, which meshes with the tooth portion of the second conical tooth on the first rotating shaft.

[0010] Preferably, one end of each of the two screws extends into the interior of a drive device and is fixedly connected with a third conical tooth. The third conical teeth on the two screws respectively mesh with the first conical teeth at the upper and lower ends of the first rotating shaft.

[0011] Preferably, the bottom support assembly has a first rectangular limiting groove at both the front and rear ends of the middle part, and the two rectangular limiting rods at the lower ends of the two driving devices are respectively connected through the two first rectangular limiting grooves on the bottom support assembly. The bottom support assembly has a first threaded hole in the middle part, and the screw at the lower end of the two driving devices is threaded through the first threaded hole on the bottom support assembly.

[0012] Preferably, the top support assembly has a second rectangular limiting groove at both the front and rear ends of the middle section. The two rectangular limiting rods at the upper ends of the two driving devices pass through the two second rectangular limiting grooves on the top support assembly for limiting connection. The top support assembly has a second threaded hole in the middle section. The screw at the upper end of the two driving devices passes through the second threaded hole on the top support assembly for threaded connection.

[0013] Preferably, the output shaft of the drilling motor is fixedly connected to a second rotating shaft, and the lower end of the second rotating shaft passes through the middle of the second spring and is fixedly connected to the upper end of the drilling bit through a connector.

[0014] A drilling method includes the following steps:

[0015] Step 1: Adjust the distance between the two C-shaped support rods in the horizontal direction at the upper end of the base plate, and place the PCB board that needs to be drilled on the upper end of the two C-shaped support rods;

[0016] Step 2: Adjust the two drive devices along the fixed crossbar, and at the same time drive the first shaft to rotate through the first servo motor, thereby driving the two screws to rotate, so that the bottom support assembly and the top support assembly are aligned and move synchronously to the upper and lower ends of the PCB board drilling position respectively.

[0017] Step 3: Push the drilling device down using the electric telescopic rod, so that the second buffer washer at the lower end of the telescopic tube presses down on the PCB board. The PCB board is lowered by the lifting buckets at both ends of the C-shaped support rod, so that the lower end of the PCB board at the drilling position moves to the upper end of the support tube of the bottom support component.

[0018] Step 4: Continue to push the drilling device down using the electric telescopic rod to retract the telescopic tube into the telescopic groove. At the same time, the drilling motor drives the drilling bit to rotate, and the PCB board drilling process is completed simultaneously during the downward pressing of the drilling device.

[0019] Step 5: After drilling is complete, lift the drilling device with the electric telescopic rod to remove the PCB board. The front end of the support tube is equipped with a cleaning port, through which you can clean the debris generated during drilling.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. In this invention, through the setting of the drilling device, an electric telescopic rod is fixedly connected to the lower middle part of the top support component, and a drilling device is fixedly connected to the lower end of the electric telescopic rod. The drilling device is provided with a motor slot inside, and a drilling motor is provided inside the motor slot. A telescopic groove is provided at the lower end of the drilling device, and a second spring is fixedly connected inside the telescopic groove. A telescopic tube is connected inside the telescopic groove, and a drilling drill bit is provided in the middle of the telescopic tube. The electric telescopic rod pushes the drilling device down, causing the second buffer washer at the lower end of the telescopic tube to press down on the PCB board. The PCB board is lowered by the lifting buckets at both ends of the C-shaped support rod, so that the lower end of the PCB board at the drilling position moves to the upper end of the support tube of the bottom support component. The support tube provides support for the lower end of the PCB board to prevent damage to the PCB board during the drilling process. The electric telescopic rod continues to push the drilling device down, causing the telescopic tube to retract into the telescopic groove. At the same time, the drilling drill bit is rotated by the drilling motor. The PCB board drilling process is realized simultaneously during the downward pressing of the drilling device.

[0022] 2. In this invention, through the arrangement of the driving device, a driving device is connected between every two fixed crossbars. A bottom support assembly is connected to the middle of the two lower rectangular limiting rods between the two driving devices, and a top support assembly is connected to the middle of the two upper rectangular limiting rods between the two driving devices. The third conical teeth on the two screws respectively mesh with the first conical teeth at the upper and lower ends of the first rotating shaft. The two lower rectangular limiting rods between the two driving devices respectively pass through two first rectangular limiting grooves on the bottom support assembly for limiting connection. A first threaded hole is provided in the middle of the bottom support assembly, and the lower screws between the two driving devices pass through the bottom support assembly. The first threaded hole on the component is threadedly connected. The two rectangular limiting rods at the upper end between the two driving devices pass through the two second rectangular limiting grooves on the top support component for limiting connection. The top support component has a second threaded hole in the middle. The screw at the upper end between the two driving devices passes through the second threaded hole on the top support component for threaded connection. The two driving devices are adjusted along the fixed crossbar. At the same time, the first servo motor drives the first rotating shaft to rotate, which in turn drives the two screws to rotate, so that the bottom support component and the top support component are aligned and move synchronously to the upper and lower ends of the PCB board drilling position, ensuring that the telescopic tube and the support tube are vertically aligned.

[0023] 3. In this invention, by setting a cleaning port, a support tube is fixedly connected to the upper middle part of the bottom support component, a first buffer washer is fixedly connected to the upper end of the support tube, and a cleaning port is set at the front end of the support tube. After drilling is completed, the drilling device can be lifted by an electric telescopic rod, and the PCB board can be taken out. The cleaning port at the front end of the support tube can be used to clean the debris generated by drilling. Attached Figure Description

[0024] Figure 1 This is a front view of a PCB board drilling device according to the present invention;

[0025] Figure 2 This is a main sectional view of the present invention;

[0026] Figure 3 This is a side sectional view of the present invention;

[0027] Figure 4 This is an enlarged view of detail A of the present invention;

[0028] Figure 5 This is a detailed enlarged view of part B of the present invention.

[0029] In the diagram: 1. Base plate; 101. First T-shaped limiting groove; 2. C-shaped support rod; 201. Lifting bucket; 202. First spring; 203. First T-shaped limiting part; 3. Upright pole; 301. Fixed crossbar; 302. Second T-shaped limiting groove; 4. Drive device; 401. Second T-shaped limiting part; 402. First rotating shaft; 403. First conical tooth; 404. Second conical tooth; 405. Rectangular limiting rod; 406. Screw; 407. Third conical tooth; 5. Motor box; 501. First servo motor; 502. Fourth conical tooth 6. Tooth; 7. Bottom support assembly; 8. Support tube; 9. First buffer washer; 10. Cleaning port; 11. First rectangular limiting groove; 12. First threaded hole; 13. Top support assembly; 14. Electric telescopic rod; 15. Second rectangular limiting groove; 16. Second threaded hole; 17. Drilling device; 18. Motor slot; 19. Drilling motor; 10. Telescopic groove; 10. Second spring; 11. Second rotating shaft; 12. Telescopic tube; 13. Second buffer washer; 14. Drill bit; 15. Connector. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] Please see Figure 1-5An embodiment of the present invention provides a drilling device for PCB board processing, comprising a base plate 1, with first T-shaped limiting grooves 101 provided at both the front and rear ends of the upper end of the base plate 1, and C-shaped support rods 2 connected to both sides of the middle part of the upper end of the base plate 1. Lifting barrels 201 are connected to both the front and rear ends of the lower ends of the C-shaped support rods 2, and each lifting barrel 201 is provided with a first spring 202 inside. The front and rear ends of the lower ends of the C-shaped support rods 2 are inserted into the upper ends of the lifting barrels 201 and movably connected. A first T-shaped limiting part 203 is fixedly connected to the lower end of each lifting barrel 201. The first T-shaped limiting part 203 at the lower end of the two lifting buckets 201 at the front and rear ends is respectively inserted into the first T-shaped limiting groove 101 at the front and rear ends of the upper end of the base plate 1 for limiting connection. Uprights 3 are fixedly connected to both the front and rear ends of both sides of the upper end of the base plate 1. Fixed crossbars 301 are fixedly connected to the upper and lower ends between the two uprights 3 on both sides of the base plate 1. A second T-shaped limiting groove 302 is provided on the inner side of each fixed crossbar 301. A driving device 4 is connected between every two fixed crossbars 301. The second T-shaped limiting part 401 is fixedly connected to both the upper and lower ends of the driving device 4. Two T-shaped limiting parts 401 are respectively inserted into the second T-shaped limiting grooves 302 inside the two fixed crossbars 301 at the upper and lower ends for limiting connection. A first rotating shaft 402 is rotatably connected to the middle of the drive device 4. A first conical tooth 403 is fixedly connected to both the upper and lower ends of the first rotating shaft 402, and a second conical tooth 404 is fixedly connected to the middle of the first rotating shaft 402. Rectangular limiting rods 405 are fixedly connected to both the upper and lower ends and the front and rear ends of the two drive devices 4. A screw 406 is rotatably connected to both the upper and lower ends of the two drive devices 4 in the middle between the two rectangular limiting rods 405. One end of each screw 406 extends into the interior of a drive unit 4 and is fixedly connected to a third conical tooth 407. The third conical teeth 407 on the two screws 406 respectively mesh with the teeth of the first conical teeth 403 at the upper and lower ends of the first rotating shaft 402. A motor housing 5 is fixedly connected to the middle of one side of the drive unit 4. A first servo motor 501 is fixedly installed inside the motor housing 5. The output shaft of the first servo motor 501 extends into the interior of the drive unit 4 and is fixedly connected to a fourth conical tooth 502. The fourth conical tooth 502 meshes with the teeth of the second conical tooth 404 on the first rotating shaft 402.

[0032] Furthermore, a bottom support assembly 6 is connected to the middle of the two lower rectangular limiting rods 405 between the two driving devices 4. The bottom support assembly 6 has first rectangular limiting grooves 604 at both the front and rear ends. The two lower rectangular limiting rods 405 between the two driving devices 4 pass through the two first rectangular limiting grooves 604 on the bottom support assembly 6 for limiting connection. A first threaded hole 605 is provided in the middle of the bottom support assembly 6. A screw 406 at the lower end between the two driving devices 4 passes through the first threaded hole 605 on the bottom support assembly 6 for threaded connection. A support tube 601 is fixedly connected to the middle of the upper end of the bottom support assembly 6. A first buffer washer 602 is fixedly connected to the upper end of the support tube 601. A cleaning port 603 is provided at the front end of the support tube 601. A top support assembly 7 is connected to the middle of the two upper rectangular limiting rods 405 between the two driving devices 4. A second rectangular limiting groove 702 is provided at both the front and rear ends of the middle of the top support assembly 7. The two upper rectangular limiting rods 405 between the two driving devices 4 are connected to the middle of the top support assembly 7. Rectangular limiting rods 405 pass through two second rectangular limiting slots 702 on the top support assembly 7 for limiting connection. A second threaded hole 703 is provided in the middle of the top support assembly 7. A screw 406 at the upper end between the two drive devices 4 passes through the second threaded hole 703 on the top support assembly 7 for threaded connection. An electric telescopic rod 701 is fixedly connected to the lower middle of the top support assembly 7. A drilling device 8 is fixedly connected to the lower end of the electric telescopic rod 701. A motor slot 801 is provided inside the drilling device 8. The machine slot 801 is equipped with a drilling motor 802. The lower end of the drilling device 8 is equipped with a telescopic groove 803. A second spring 804 is fixedly connected inside the telescopic groove 803. A telescopic tube 9 is connected inside the telescopic groove 803. A drilling drill bit 902 is installed in the middle of the telescopic tube 9. The output shaft of the drilling motor 802 is fixedly connected to a second rotating shaft 805. The lower end of the second rotating shaft 805 passes through the middle of the second spring 804 and is fixedly connected to the upper end of the drilling drill bit 902 through a connector 903.

[0033] A drilling method includes the following steps:

[0034] Step 1: Adjust the distance between the two C-shaped support rods 2 in the horizontal direction on the upper end of the base plate 1, and place the PCB board that needs to be drilled on the upper end of the two C-shaped support rods 2;

[0035] Step 2: Adjust the two drive devices 4 between the fixed crossbars 301, and at the same time drive the first rotating shaft 402 to rotate through the first servo motor 501, thereby driving the two screws 406 to rotate, so that the bottom support component 6 and the top support component 7 are aligned and move synchronously to the upper and lower ends of the PCB board drilling position respectively.

[0036] Step 3: The drilling device 8 is pushed down by the electric telescopic rod 701, so that the second buffer washer 901 at the lower end of the telescopic tube 9 presses down the PCB board. The PCB board is lowered by the lifting buckets 201 at both ends of the C-shaped support rod 2, so that the lower end of the PCB board at the drilling position moves to the upper end of the support tube 601 of the bottom support component 6.

[0037] Step 4: Continue to push the drilling device 8 down through the electric telescopic rod 701 to retract the telescopic tube 9 into the telescopic groove 803. At the same time, the drilling motor 802 drives the drilling drill bit 902 to rotate, and the PCB board drilling process is realized simultaneously during the downward pressing of the drilling device 8.

[0038] Step 5: After drilling is completed, the drilling device 8 can be lifted by the electric telescopic rod 701 to remove the PCB board. The front end of the support tube 601 is provided with a cleaning port 603, through which the debris generated during drilling can be cleaned.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A drilling device for PCB board processing, comprising a base plate (1), characterized in that: The base plate (1) has a first T-shaped limiting groove (101) at both the front and rear ends of its upper end. C-shaped support rods (2) are connected to both sides of the middle part of the upper end of the base plate (1). Lifting buckets (201) are connected to both the front and rear ends of the lower end of the C-shaped support rods (2). Uprights (3) are fixedly connected to both the front and rear ends of both sides of the upper end of the base plate (1). Fixed crossbars (301) are fixedly connected to both the upper and lower ends between the two uprights (3) on both sides of the base plate (1). A driving device (4) is connected between every two fixed crossbars (301). The drive device (4) has a first rotating shaft (402) rotatably connected to its center. Rectangular limiting rods (405) are fixedly connected to both the upper and lower ends and the front and rear ends of the two drive devices (4). Screws (406) are rotatably connected to both the upper and lower ends of the two drive devices (4) in the middle between the two rectangular limiting rods (405). A motor housing (5) is fixedly connected to the center of one side of one drive device (4). A first servo motor (501) is fixedly installed inside the motor housing (5). A bottom support assembly (6) is connected to the middle of the two lower rectangular limiting rods (405) between the two driving devices (4). A support tube (601) is fixedly connected to the middle of the upper end of the bottom support assembly (6). A first buffer washer (602) is fixedly connected to the upper end of the support tube (601). A cleaning port (603) is provided at the front end of the support tube (601). A top support assembly (7) is connected to the middle of the two upper rectangular limiting rods (405) between the two driving devices (4). An electric current device is fixedly connected to the middle of the lower end of the top support assembly (7). Telescopic rod (701), the lower end of which is fixedly connected to a drilling device (8), the drilling device (8) is provided with a motor slot (801), the motor slot (801) is provided with a drilling motor (802), the lower end of the drilling device (8) is provided with a telescopic groove (803), the telescopic groove (803) is fixedly connected with a second spring (804), the telescopic groove (803) is connected with a telescopic tube (9), and a drilling drill bit (902) is provided in the middle of the telescopic tube (9); The bottom support assembly (6) has a first rectangular limiting groove (604) at both the front and rear ends in the middle. The two rectangular limiting rods (405) at the lower end between the two driving devices (4) pass through the two first rectangular limiting grooves (604) on the bottom support assembly (6) for limiting connection. The bottom support assembly (6) has a first threaded hole (605) in the middle. The screw (406) at the lower end between the two driving devices (4) passes through the first threaded hole (605) on the bottom support assembly (6) for threaded connection. The top support assembly (7) has a second rectangular limiting groove (702) at both the front and rear ends. The two rectangular limiting rods (405) at the upper end of the two driving devices (4) are respectively connected through the two second rectangular limiting grooves (702) on the top support assembly (7). The top support assembly (7) has a second threaded hole (703) in the middle. The screw (406) at the upper end of the two driving devices (4) is threaded through the second threaded hole (703) on the top support assembly (7).

2. The PCB board drilling device according to claim 1, characterized in that: Each of the lifting buckets (201) is provided with a first spring (202). The front and rear ends of the lower end of the C-shaped support rod (2) are inserted into the upper end of the lifting bucket (201) for movable connection. The lower end of each lifting bucket (201) is fixedly connected with a first T-shaped limiting part (203). The first T-shaped limiting parts (203) at the front and rear ends of the two lifting buckets (201) at the lower end of the C-shaped support rod (2) are respectively inserted into the first T-shaped limiting grooves (101) at the front and rear ends of the upper end of the base plate (1) for limiting connection.

3. The PCB board drilling device according to claim 1, characterized in that: Each of the fixed crossbars (301) is provided with a second T-shaped limiting groove (302) on its inner side. The upper and lower ends of the driving device (4) are fixedly connected with second T-shaped limiting parts (401). The second T-shaped limiting parts (401) at the upper and lower ends of the driving device (4) are respectively inserted into the second T-shaped limiting grooves (302) on the inner side of the two fixed crossbars (301) at the upper and lower ends for limiting connection.

4. The PCB board drilling device according to claim 1, characterized in that: The first rotating shaft (402) is fixedly connected to the upper and lower ends with a first conical tooth (403), and the first rotating shaft (402) is fixedly connected to the middle with a second conical tooth (404).

5. A drilling device for PCB board processing according to claim 4, characterized in that: The output shaft of the first servo motor (501) extends into the drive device (4) and is fixedly connected to a fourth conical tooth (502). The fourth conical tooth (502) meshes with the teeth of the second conical tooth (404) on the first rotating shaft (402).

6. The PCB board drilling device according to claim 4, characterized in that: One end of each of the two screws (406) extends into the interior of a drive device (4) and is fixedly connected with a third conical tooth (407). The third conical tooth (407) on the two screws (406) respectively meshes with the teeth of the first conical tooth (403) at the upper and lower ends of the first rotating shaft (402).

7. A drilling device for PCB board processing according to claim 1, characterized in that: The output shaft of the drilling motor (802) is fixedly connected to a second rotating shaft (805). The lower end of the second rotating shaft (805) passes through the middle of the second spring (804) and is fixedly connected to the upper end of the drilling bit (902) through a connector (903).

8. A drilling method, implemented based on a PCB board drilling device according to any one of claims 1-7, characterized in that, Includes the following steps: Step 1: Adjust the distance between the two C-shaped support rods (2) on the upper end of the base plate (1) in the horizontal direction, and place the PCB board that needs to be drilled on the upper end of the two C-shaped support rods (2); Step 2: Adjust the two drive devices (4) between the fixed crossbar (301), and at the same time drive the first rotating shaft (402) to rotate through the first servo motor (501), thereby driving the two screws (406) to rotate, so that the bottom support assembly (6) and the top support assembly (7) are aligned and moved synchronously to the upper and lower ends of the PCB board drilling position respectively. Step 3: Push the drilling device (8) down by the electric telescopic rod (701), so that the second buffer washer (901) at the lower end of the telescopic tube (9) presses down the PCB board. The PCB board is lowered by the lifting buckets (201) at the front and rear ends of the C-shaped support rod (2), so that the lower end of the PCB board drilling position moves to the upper end of the support tube (601) of the bottom support component (6). Step 4: Continue to push the drilling device (8) down by the electric telescopic rod (701) so that the telescopic tube (9) retracts into the telescopic groove (803). At the same time, the drilling motor (802) drives the drilling drill bit (902) to rotate. The PCB board drilling process is realized simultaneously during the downward pressing of the drilling device (8). Step 5: After drilling is completed, the drilling device (8) is lifted by the electric telescopic rod (701) and the PCB board can be taken out. The front end of the support tube (601) is provided with a cleaning port (603), and the debris generated by drilling can be cleaned through the cleaning port (603).

Images