Perforating device for PCB (printed circuit board) processing

Abstract

The invention relates to a punching device for PCB (printed circuit board) processing, which comprises a base, a conveying part is arranged on the top surface of the base, the conveying part can drive a PCB to be conveyed transversely and longitudinally, a plurality of groups of punching parts with drill bits are arranged on the base, and the diameters of the drill bits in the punching parts are different. The punching part comprises a lifting seat, a first electric push rod, a first motor, a rotating disc and a chuck, the lifting seat is connected to the base in a lifting mode and can be arranged opposite to the PCB, the first electric push rod is fixedly connected to the base, an output shaft of the first electric push rod is fixedly connected with the lifting seat, and the rotating disc is rotationally connected to the bottom face of the lifting seat; the first motor is fixedly connected to the lifting base, one end of the first motor is fixedly connected with the rotating disc, the chuck is fixedly connected to the bottom face of the rotating disc, the chuck can clamp and fix a drill bit, shutdown caused by frequent tool changing of traditional equipment is completely avoided, and continuous drilling operation of hole sites with various hole diameters is achieved.

Description

Technical Field

[0001] This invention relates to the technical field of PCB board drilling equipment, and in particular to a drilling device for PCB board processing. Background Technology

[0002] PCB, or Printed Circuit Board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical interconnections. Because it is manufactured using electronic printing techniques, it is called a "printed" circuit board. Traditional PCB drilling equipment employs a single-function mechanical structure design, its core consisting of a cast iron base, a vertical guide column, and a rotating spindle. A specific size carbide drill bit is mounted at the end of the spindle, and speed is transmitted via a pulley system and a motor. The machine's worktable is equipped with manually adjustable X and Y axis slide rails, requiring the operator to perform planar positioning using a crank handle. Each processing cycle can only complete drilling of a single type of hole: 0.3-0.5mm micro drill bits are used for through holes; 1.0-2.0mm drill bits are required for insert holes; and a third drilling cycle with a larger diameter drill bit and spindle speed adjustment is needed for mounting holes, thus achieving the desired PCB board processing.

[0003] While the above method enables drilling into PCB boards, it requires manual unloading and re-clamping between each step, and drill bit replacement relies on wrenches to disassemble the chuck. A spiral chip removal groove is installed under the table, and cutting cooling depends on manual dripping from an external oil can. The entire process involves multiple machine stops for tool changes and repositioning, requiring significant manual intervention. These repetitive tool changes and other manual interventions greatly reduce PCB drilling efficiency, thus impacting overall PCB production efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art and to propose a drilling device for PCB board processing, capable of drilling holes in PCB boards.

[0005] To achieve the above objectives, the present invention proposes a drilling device for PCB board processing, comprising: a base,

[0006] The top surface of the base is provided with a conveyor, which can drive the PCB board to be transported horizontally and vertically.

[0007] The base is provided with multiple sets of drilling components with drill bits, and the diameter of the drill bits in the multiple sets of drilling components is different.

[0008] The drilling component includes: a lifting base, an electric push rod, a motor, a rotating disk, and a chuck;

[0009] The lifting seat is connected to the base in a lifting manner, and the lifting seat can be arranged opposite to the PCB board.

[0010] The electric push rod is fixedly connected to the base, and the output shaft of the electric push rod is fixedly connected to the lifting seat.

[0011] The rotating disk is rotatably connected to the bottom surface of the lifting base, and one end of the motor is fixedly connected to the lifting base and the other end is fixedly connected to the rotating disk.

[0012] The chuck is fixedly connected to the bottom surface of the rotating disk, and the chuck can hold and fix the drill bit.

[0013] Preferably, the conveying component includes a first movable seat that is slidably connected to the base and a second movable seat that is slidably connected to the first movable seat. The second movable seat is provided with a clamping component that can clamp the PCB board.

[0014] Preferably, the clamping component includes a clamping block, a bidirectional lead screw, and a second motor. The clamping block is slidably connected to the second movable seat, the bidirectional lead screw is rotatably connected to the second movable seat, and the bidirectional lead screw is threadedly connected to the clamping block. The second motor is fixedly connected to the second movable seat, and the output shaft of the second motor is fixedly connected to the bidirectional lead screw.

[0015] Preferably, the sidewall of the clamping block is provided with a positioning groove, the positioning grooves on the two clamping blocks are arranged opposite to each other, and the positioning groove is provided with friction grooves arranged in an alternating manner.

[0016] Preferably, the base is connected to a lifting plate that is driven to move up and down, and a placement frame is placed on the top surface of the lifting plate, with the clamping blocks of the placement frame arranged opposite to each other.

[0017] Preferably, a push block is slidably connected to the base, and the push block can be arranged opposite to the placement frame.

[0018] Preferably, the end of the base away from the lifting plate one is connected to the lifting plate two for lifting and lowering. The top surface of the lifting plate two is provided with a placement frame two, and the placement frame one and placement frame two have the same structure.

[0019] Preferably, the first and second placement frames include a frame and a plurality of support bars fixedly connected to the frame. The support bars are arranged vertically and are used to support the PCB board.

[0020] Preferably, a sliding seat is vertically connected to the base, and a push seat is slidably connected to the sliding seat, which is positioned opposite to the second placement frame.

[0021] Preferably, a support seat is slidably connected to the base in a vertical direction, a plurality of ball bearings are rotatably connected to the support seat, and a guide frame is fixedly connected to the top surface of the support seat.

[0022] The advantages of this invention compared with existing technologies are as follows:

[0023] 1. By fixing multiple independent drilling units equipped with drill bits of different diameters on the base, when the PCB board needs to be machined with holes of different diameters, it is no longer necessary to manually stop the machine and use a wrench to disassemble the chuck and change the drill bits. Instead, a two-dimensional precision conveying mechanism consisting of moving base one and moving base two drives the clamped PCB board to move precisely in the horizontal plane through a lead screw and nut, positioning it directly below the drill bits of different diameters in sequence. This mechanical layout completely avoids the downtime caused by frequent tool changes in traditional equipment, realizing continuous drilling operations for multiple hole diameters and positions;

[0024] 2. After the PCB board is lifted by the placement frame via the lifting plate, it is mechanically fed into the clamping station by a horizontal pushing block. The clamping block has a built-in bidirectional lead screw, which, driven by a motor, drives the clamping blocks with staggered friction grooves to move in opposite directions, completing the stable clamping and precise positioning of the PCB board edge. Subsequently, the entire clamping mechanism (moving seat two) moves longitudinally through the lead screw on moving seat one, while moving seat one itself moves laterally under the drive of the lead screw on the base. These two sets of orthogonally arranged lead screw transmission systems together constitute a pure mechanical kinematic chain that drives the PCB board to move precisely in two dimensions within the processing plane, replacing the traditional manual crank adjustment table slide rail positioning method;

[0025] 3. The device is equipped with identical lifting plate structures (lifting plate one and lifting plate two) and corresponding placement frames (placement frame one and placement frame two) at both ends. Support bars within the placement frames are used to stack PCB boards. During loading, lifting plate one is raised, and the push block extends horizontally to push the top PCB board into the clamping component. During unloading, the clamping component delivers the drilled PCB board to the unloading station, and lifting plate two raises placement frame two to a suitable height. The support base is lifted by the lifting drive, and the ball bearings on it contact the bottom surface of the PCB board to form a low-friction support. The pusher on the sliding base moves horizontally, pushing the PCB board out of the clamping block and allowing it to slide along the guide frame on the support base into the support bar of placement frame two. This series of lifting and pushing actions is all completed by the corresponding lifting drive device (such as an electric push rod) and horizontal drive device (such as an electric push rod) through pure mechanical transmission, realizing automatic PCB board loading, unloading, and stacking, significantly reducing manual board handling operations.

[0026] 4. Each drilling unit (drilling component) is equipped with an independent lifting platform and an electric actuator. Once the PCB board is positioned below the target drill bit, only the electric actuator of that unit needs to drive the lifting platform vertically downwards, causing the drill bit to complete the drilling operation. Drill bits in other units remain stationary. This design reduces the complexity of frequently adjusting spindle speeds or changing drill bits to accommodate different hole diameters in traditional equipment. Each drill unit operates independently and sequentially according to processing requirements, resulting in a simpler and more efficient workflow.

[0027] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention;

[0029] Figure 2 This is a schematic diagram showing the position of the lifting plate of the present invention;

[0030] Figure 3 This is a schematic diagram showing the position of the support base of the present invention;

[0031] Figure 4 This is a schematic diagram showing the position of the positioning groove in this invention.

[0032] In the diagram: 1. Base; 2. Conveying component; 3. Drilling component; 4. Lifting seat; 5. Electric push rod one; 6. Motor one; 7. Rotary disc; 8. Chuck; 9. Moving seat one; 10. Moving seat two; 11. Clamping component; 12. Clamping block; 13. Bidirectional lead screw; 14. Motor two; 15. Positioning groove; 16. Friction groove; 17. Lifting disc one; 18. Placement frame one; 19. Pushing block; 20. Lifting disc two; 21. Placement frame two; 22. Frame body; 23. Support bar; 24. Sliding seat; 25. Pushing seat; 26. Support seat; 27. Ball bearing; 28. Guide frame. Detailed Implementation

[0033] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] like Figures 1 to 4 A drilling device for PCB board processing, comprising: a base 1,

[0038] The present invention includes a conveying component 2 on the top surface of the base 1, which can drive the PCB board to be transported horizontally and vertically. The conveying component 2 includes a movable seat 9 slidably connected to the base 1 and a movable seat 10 slidably connected to the movable seat 9. The movable seat 10 is provided with a clamping component 11, which can clamp the PCB board. The clamping component 11 includes a clamping block 12, a bidirectional lead screw 13, and a motor 14. The clamping block 12 is slidably connected to the movable seat 10, the bidirectional lead screw 13 is rotatably connected to the movable seat 10, and the bidirectional lead screw 13 is threadedly connected to the clamping block 12. The motor 14 is fixedly connected to the movable seat 10, and the output shaft of the motor 14 is fixedly connected to the bidirectional lead screw 13. Therefore, when the PCB board enters between the clamping blocks 12, the motor 14 starts. The PCB board is clamped by the bidirectional lead screw 13 driven by the motor 14. The bidirectional lead screw 13 drives the clamping block 12 to move relative to it. Once the PCB board is clamped, the movable seat driven by the lead screw and the motor moves. The lead screw is rotatably connected to the base 1 and threadedly connected to the movable seat 9. Therefore, the output shaft of the motor fixedly connected to the base 1 will drive the lead screw fixedly connected to it to rotate, and the lead screw will drive the movable seat 9 to move. The movable seat 10 is also driven by the motor and lead screw. The lead screw is rotatably connected to the movable seat 9, and the motor is fixedly connected to the movable seat 9. Therefore, the motor drives the lead screw to rotate, and the lead screw drives the movable seat 10 threadedly connected to it to slide, thereby realizing that the movable seat 10 drives the clamping block 12 to adjust its position, and thus realizes that the clamping block 12 adjusts the position of the PCB board.

[0039] After the PCB board is positioned, multiple sets of drilling components 3 with drill bits are installed on the base 1. The drill bits in the multiple sets of drilling components 3 have different diameters. The drilling components 3 include: a lifting seat 4, an electric push rod 5, a motor 6, a rotating disk 7, and a chuck 8. The lifting seat 4 is flexibly connected to the base 1 and can be positioned opposite to the PCB board. The electric push rod 5 is fixedly connected to the base 1, and its output shaft is fixedly connected to the lifting seat 4. The rotating disk 7 is rotatably connected to the bottom surface of the lifting seat 4. The motor 6 is fixedly connected to the lifting seat 4, and one end is fixedly connected to the rotating disk 7. The chuck 8 is fixedly connected to the bottom surface of the rotating disk 7. 8 can clamp and fix the drill bit, so the electric push rod 5 is started, which drives the lifting seat 4 to descend. When the lifting seat 4 descends, the motor 6 is started, which drives the rotating disk 7 to drive the chuck 8 to rotate. During the rotation of the chuck 8, the drill bit is driven to drill holes in the PCB board, thereby realizing the processing of the PCB board. When the PCB board needs to be drilled with holes of different diameters, the moving seat 9 and the moving seat 10 move, so that the clamping block 12 drives the PCB board to move below another set of drilling parts 3. The PCB board is drilled with drill bits of different diameters in the other set of drilling parts 3, thereby realizing the drilling of holes of different diameters in the PCB board.

[0040] Specifically, a positioning groove 15 is provided on the side wall of the clamping block 12. The positioning grooves 15 on the two clamping blocks 12 are arranged opposite to each other. The positioning grooves 15 are provided with friction grooves 16 arranged in an alternating manner. The positioning grooves 15 are used to position the PCB board, while the friction grooves 16 increase the friction between the clamping block 12 and the PCB board.

[0041] Specifically, since a lifting plate 17 is connected to the base 1 for lifting and lowering, and a placement frame 18 is placed on the top surface of the lifting plate 17, with the clamping blocks 12 of the placement frame 18 being arranged opposite to each other, the lifting plate 17 is driven to rise and fall by an electric push rod. The electric push rod is fixedly connected to the base 1, and its output shaft is fixedly connected to the bottom surface of the lifting plate 17. Therefore, the electric push rod can drive the lifting plate 17 to rise and fall, so that the lifting plate 17 can drive the placement frame 18 to adjust its position. Once the placement frame 18 has been adjusted to its position, a push block 19 is slidably connected to the base 1 for lifting and lowering. The push block 19 can be arranged opposite to the placement frame 18. Therefore, the push block 19 is driven to move by the electric push rod. The electric push rod is fixedly connected to the base 1, and its output shaft is fixedly connected to the push block 19. Therefore, the electric push block drives the push block 19 to push the PCB board on the placement frame 18 into the space between the clamping blocks 12, where the clamping blocks 12 clamp the PCB board, thereby realizing the loading of the PCB board.

[0042] Specifically, when the PCB board needs to be unloaded after drilling, the end of the base 1 furthest from the lifting plate 17 is connected to the lifting plate 20, which is driven to move. A placement frame 21 is placed on the top surface of the lifting plate 20. The placement frame 18 has the same structure as the placement frame 21. A sliding seat 24 is vertically connected to the base 1, and a push seat 25 is slidably connected to the sliding seat 24. The push seat 25 can be positioned opposite the placement frame 21. A support seat 26 is vertically slidably connected to the base 1, and several ball bearings 27 are rotatably connected to the support seat 26. A guide frame 28 is fixedly connected to the top surface of the support seat 26. Therefore, the lifting plate 20, driven by an electric push rod fixedly connected to the base 1, and its output shaft fixedly connected to the lifting plate 20, moves the placement frame 21, thereby adjusting its position. Once the placement frame 21 is in position... After the adjustment is completed, the sliding seat 24 driven by the electric push rod moves. The electric push rod is fixedly connected to the base 1, and the output shaft is fixedly connected to the sliding seat 24, which can realize the lifting and lowering of the sliding seat 24. Once the sliding seat 24 is lifted to a certain position, the push seat 25 driven by the electric push rod moves. The electric push rod is fixedly connected to the sliding seat 24, and the output shaft is fixedly connected to the push seat 25. Therefore, the push seat 25 pushes the PCB board on the clamping block 12 to slide. Once the PCB board slides outside the clamping block 12, the support seat 26 driven by the electric push rod (the electric push rod is fixedly connected to the base 1, and the output shaft is fixedly connected to the support seat 26) moves. The electric push rod pushes the support seat 26 to move, causing the support seat 26 to drive the ball 27 to move, so that the ball 27 contacts the PCB board. Then, the push seat 25 pushes the PCB board into the placement frame 21, thereby realizing the unloading of the PCB board.

[0043] Specifically, the placement frame 18 and the placement frame 21 include a frame 22 and several support bars 23 fixedly connected to the frame 22. The support bars 23 are arranged vertically and are used to support the PCB board.

[0044] Working principle of the invention: When the device is started, the base 1 serves as the overall support structure. The lifting plate 17 on the base 1 is lifted by the lifting drive device below, causing the placement frame 18 on top of it to rise to a predetermined height. The PCB boards stacked inside the placement frame 18 are supported by multiple support bars 23. At this time, the pushing block 19 on the side of the base 1 moves towards the placement frame 18 under the action of the horizontal drive device, pushing the uppermost PCB board to slide into the clamping area.

[0045] Once the PCB board enters the clamping area, the motor 14 on the top surface of the second moving seat 10 drives the bidirectional lead screw 13 to rotate. The left and right threads of the bidirectional lead screw 13 drive the two sets of clamping blocks 12 to move towards each other along the slide rail of the second moving seat 10. The positioning grooves 15 on the inner side of the clamping blocks 12 precisely engage with the edge of the PCB board, while the staggered friction grooves 16 in the positioning grooves 15 increase the contact friction with the PCB board, achieving stable clamping.

[0046] The lead screw inside base 1 is driven by a drive motor, which drives the movable seat 9 to slide laterally along the guide rail of base 1. Another drive motor on the top of movable seat 9 drives a second set of lead screws, which drives the movable seat 10 to slide longitudinally along the guide rail of movable seat 9. Through the combined movement of the two sets of lead screws, the PCB board fixed by the clamping block 12 can be precisely moved to any target coordinate in the horizontal plane.

[0047] When the PCB board is positioned below the target drill bit, the electric push rod 5 of the corresponding drilling component 3 pushes the lifting seat 4 vertically downward, causing the entire drilling unit to descend. At the same time, the motor 6 drives the rotating disk 7 to rotate at high speed, and the chuck 8 fixed to the bottom of the rotating disk 7 drives the drill bit to rotate synchronously. The drill bit completes the drilling of the PCB board under the combined action of vertical feed and rotational motion.

[0048] If the drilling diameter needs to be changed, the moving base 9 and the moving base 10 work together to move the PCB board under another set of drill bits via a lead screw drive.

[0049] The drilled PCB board is moved to the unloading station. The lifting plate 20 at the end of base 1 is raised by a lifting drive device, making the top of the support bar 23 of the placement frame 21 flush with the PCB board. The sliding seat 24 on the side of base 1 is height-adjusted by the lifting drive device, and the pushing seat 25 on it is pushed forward by a horizontal drive device, pushing the PCB board out of the clamping block 12. At this time, the middle support seat 26 of base 1 is lifted by the lifting drive device, and the ball bearings 27 on its top surface contact the bottom surface of the PCB board to form rolling support. The pushing seat 25 continues to push the PCB board along the guide frame 28 into the support bar 23 of the placement frame 21, completing the unloading process.

[0050] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A drilling device for PCB board processing, comprising: The base (1) is characterized in that, The base (1) is provided with a conveyor (2) on its top surface, which can drive the PCB board to be transported horizontally and vertically. The base (1) is provided with multiple sets of drilling components (3) with drill bits, and the diameter of the drill bits in the multiple sets of drilling components (3) is different; The punching component (3) includes: a lifting seat (4), an electric push rod (5), a motor (6), a rotating disk (7), and a chuck (8); The lifting seat (4) is lifted and connected to the base (1), and the lifting seat (4) can be arranged opposite to the PCB board; The electric push rod (5) is fixedly connected to the base (1), and the output shaft of the electric push rod (5) is fixedly connected to the lifting seat (4); The rotating disk (7) is rotatably connected to the bottom surface of the lifting seat (4), and the motor (6) is fixedly connected to the lifting seat (4), with one end fixedly connected to the rotating disk (7); The chuck (8) is fixedly connected to the bottom surface of the rotating disk (7), and the chuck (8) can clamp and fix the drill bit.

2. The drilling device for PCB board processing according to claim 1, characterized in that, The conveying component (2) includes a first movable seat (9) that is slidably connected to the base (1) and a second movable seat (10) that is slidably connected to the first movable seat (9). The second movable seat (10) is provided with a clamping component (11), which can clamp the PCB board.

3. The drilling device for PCB board processing according to claim 2, characterized in that, The clamping component (11) includes a clamping block (12), a bidirectional lead screw (13), and a second motor (14). The clamping block (12) is slidably connected to the second movable seat (10). The bidirectional lead screw (13) is rotatably connected to the second movable seat (10) and threadedly connected to the clamping block (12). The second motor (14) is fixedly connected to the second movable seat (10), and the output shaft of the second motor (14) is fixedly connected to the bidirectional lead screw (13).

4. The drilling device for PCB board processing according to claim 3, characterized in that, The clamping block (12) has a positioning groove (15) on its side wall. The positioning grooves (15) on the two clamping blocks (12) are arranged opposite to each other. The positioning grooves (15) have friction grooves (16) arranged in an alternating manner.

5. The drilling device for PCB board processing according to claim 2, characterized in that, The base (1) is connected to a lifting plate (17) that is driven to move up and down. A placement frame (18) is placed on the top surface of the lifting plate (17), and the clamping block (12) of the placement frame (18) is arranged opposite to it.

6. The drilling device for PCB board processing according to claim 5, characterized in that, A push block (19) is slidably connected to the base (1), and the push block (19) can be arranged opposite to the placement frame (18).

7. The drilling device for PCB board processing according to claim 2, characterized in that, The base (1) is connected to the lifting plate two (20) at the end away from the lifting plate one (17) by a drive to lift. The top surface of the lifting plate two (20) is equipped with a placement frame two (21). The placement frame one (18) and the placement frame two (21) have the same structure.

8. The drilling device for PCB board processing according to claim 7, characterized in that, The placement frame one (18) and placement frame two (21) include a frame (22) and several support bars (23) fixedly connected to the frame (22). The support bars (23) are arranged vertically and are used to support the PCB board.

9. The drilling device for PCB board processing according to claim 8, characterized in that, The base (1) is vertically connected to a sliding seat (24), and the sliding seat (24) is slidably connected to a push seat (25), which is positioned opposite to the second placement frame (21).

10. The drilling device for PCB board processing according to claim 9, characterized in that, A support seat (26) is slidably connected to the base (1) in a vertical direction. Several balls (27) are rotatably connected to the support seat (26). A guide frame (28) is fixedly connected to the top surface of the support seat (26).

Images