PCB drilling device

Abstract

The utility model discloses a PCB drilling device which comprises a bottom box, a fan and a first electric push rod are fixedly connected in the bottom box, a lifting frame is fixedly connected to the top of the output end of the first electric push rod, a plurality of filter cartridges are fixedly connected in the lifting frame, and a plurality of air inlet pipes are fixedly communicated with the outer wall of the lifting frame. And one ends of the multiple air inlet pipes fixedly communicate with the outer wall of the input end of the draught fan, a limiting mechanism is arranged at the top of the bottom box, and four top columns are fixedly connected to the top of the bottom box. According to the utility model, the limiting mechanism is arranged to extrude and limit the top of the PCB, so that the PCB is prevented from deviating during drilling; splash and dust are blocked by arranging the protection mechanism; dust in the protection frame and on the outer surface of the PCB is sucked into the lifting frame through the draught fan and filtered through the multiple filter drums, the dust is accumulated in the lifting frame, shutdown cleaning is avoided, and meanwhile it is avoided that much dust adheres to the outer surface of the PCB after drilling.

Description

Technical Field

[0001] The utility model relates to the technical field of printed circuit boards, in particular to a PCB drilling device. Background Art

[0002] PCB (Printed Circuit Board) refers to a printed board with point-to-point connections and printed components formed on a general substrate according to a predetermined design. It is the support of electronic components and the carrier for the electrical connection of electronic components. In the manufacturing process of PCB (Printed Circuit Board), drilling is a crucial step. It not only involves drilling holes in the board for routing needs, but also includes the manufacturing of various functional holes such as positioning holes and screw holes.

[0003] After searching, the patent document with publication number: CN221089308U discloses a splash-proof PCB board drilling device, which protects splashed debris through a protective frame, effectively improving the protection effect of the PCB circuit board during drilling operation. The utility model can automatically raise and lower the protective frame, which can effectively block and collect splashes, reduce the risk of injury to operators and the surrounding environment, and improve operation safety.

[0004] Although the above device has solved some of the existing shortcomings, in actual use, the dust generated during drilling is easily retained on the outer surface of the PCB and in the protective frame due to the anti-splashing effect of the protective frame. As multiple PCBs are continuously drilled, the dust accumulates more and more, and the machine needs to be stopped for cleaning. In addition, when the PCB is replaced, the dust is inhaled and endangers health. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a PCB drilling device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A PCB drilling device comprises a bottom box, a fan and a first electric push rod are fixedly connected inside the bottom box, a lifting frame is fixedly connected to the top of the output end of the first electric push rod, a plurality of filter cartridges are fixedly connected inside the lifting frame, a plurality of air inlet pipes are fixedly communicated with the outer wall of the lifting frame, one end of the plurality of air inlet pipes are fixedly communicated with the outer wall of the fan input end, a limiting mechanism is provided on the top of the bottom box, four top columns are fixedly connected to the top of the bottom box, the tops of the four top columns are fixedly connected to the same top plate, and a protective mechanism is provided on the bottom of the top plate.

[0008] Preferably, the limiting mechanism includes four vertical rods, four bearings are fixedly connected to the top of the lifting frame, the inner rings of the four bearings are respectively fixedly connected to the outer walls of the four vertical rods, the top of the bottom box is fixedly connected to a circular placement table, and the tops of the four vertical rods are fixedly connected to limiting plates. By arranging bearings to assist the vertical rods and the limiting plates to rotate, it is convenient to place the PPC on the circular placement table.

[0009] Preferably, the protective mechanism includes a second electric push rod, the top of the top plate is fixedly connected to the outer wall of the second electric push rod, the bottom of the output end of the second electric push rod is fixedly connected to a frame, a drill bit is installed at the bottom of the frame, two round rods are fixedly connected to the outer wall of the frame, one end of the two round rods is fixedly connected to the same protective frame, and the second electric push rod is provided to drive the frame and the protective frame to move up and down.

[0010] Preferably, the tops of the circular placement table and the bottom box are both provided with through grooves, and the top of the lifting frame is evenly provided with a plurality of air inlet holes, so that dust is sucked into the lifting frame for filtration by providing the plurality of air inlet holes.

[0011] Preferably, four sliding holes are opened on the top of the circular placement table, and the inner walls of the four sliding holes are slidably connected to the outer walls of four vertical rods respectively. The vertical rods are arranged to drive the limiting plates to be squeezed on the top of the PCB to limit it.

[0012] Preferably, a through hole is formed on the outer wall of the top plate, and the inner wall of the through hole is slidably connected to the outer wall of the output end of the second electric push rod.

[0013] Preferably, an assembly groove is provided at the top of the protective frame, the inner wall of the assembly groove is fixedly connected to the outer wall of the frame, and the outer walls of the bottom box and the lifting frame are hinged with sealing doors, and the filter cartridge can be replaced and maintained by opening the sealing door on the lifting frame.

[0014] Compared with the prior art, the advantages of the utility model are:

[0015] This solution sets a limit mechanism to squeeze and limit the top of the PCB to prevent it from shifting during drilling; sets a protective mechanism to block splashes and dust; uses a fan to suck the dust inside the protective frame and on the outer surface of the PCB into the lifting frame, and filters it through multiple filter cartridges. The dust accumulates in the lifting frame to avoid stopping for cleaning, and at the same time prevents a lot of dust from adhering to the outer surface of the PCB after drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a PCB drilling device proposed by the utility model;

[0018] Figure 2 This is a schematic cross-sectional structure diagram of a PCB drilling device proposed by the utility model;

[0019] Figure 3 A PCB drilling device proposed by the utility model Figure 2 A schematic diagram of the enlarged structure of part A;

[0020] Figure 4 The present invention is a schematic diagram of the filter cartridge structure of a PCB drilling device proposed by the present invention.

[0021] In the figure: 1. bottom box; 2. fan; 3. first electric push rod; 4. lifting frame; 5. filter cartridge; 6. air inlet pipe; 7. bearing; 8. circular placement table; 9. through groove; 10. vertical rod; 11. limit plate; 12. top plate; 13. second electric push rod; 14. frame; 15. round rod; 16. protective frame; 17. drill bit; 18. top column. DETAILED DESCRIPTION

[0022] 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 of 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.

[0023] Depend on Figure 1-Figure 4 As shown, it relates to a PCB drilling device, including a bottom box 1, a fan 2 and a first electric push rod 3 are fixedly connected inside the bottom box 1, a lifting frame 4 is fixedly connected to the top of the output end of the first electric push rod 3, the first electric push rod 3 drives the lifting frame 4 to move up and down when it runs, the outer walls of the bottom box 1 and the lifting frame 4 are hinged with sealing doors, and a plurality of air inlet holes are evenly opened on the top of the lifting frame 4.

[0024] A plurality of filter cartridges 5 are fixedly connected inside the lifting frame 4, and a plurality of air inlet pipes 6 are fixedly connected to the outer wall of the lifting frame 4. One ends of the plurality of air inlet pipes 6 are fixedly connected to the outer wall of the input end of the fan 2. The two ends of the plurality of air inlet pipes 6 are respectively located at the two ends of the plurality of filter cartridges 5 to form a connection. The fan 2 operates in the air inlet pipe 6 to form a negative pressure, thereby sucking the dust into the lifting frame 4. Four top columns 18 are fixedly connected to the top of the bottom box 1. The tops of the four top columns 18 are fixedly connected to the same top plate 12. The four top columns 18 support the top plate 12 and the second electric push rod 13.

[0025] A limiting mechanism is provided on the top of the bottom box 1, which includes four vertical rods 10. Four bearings 7 are fixedly connected to the top of the lifting frame 4. The inner rings of the four bearings 7 are fixedly connected to the outer walls of the four vertical rods 10 respectively. The bearings 7 drive the vertical rods 10 to rotate and move up and down.

[0026] A circular placement table 8 is fixedly connected to the top of the bottom box 1. The circular placement table 8 is used to place PCBs. A through groove 9 is provided on the circular placement table 8 and the top of the bottom box 1. Dust enters the lifting frame 4 through the through groove 9 and multiple air inlet holes. The tops of the four vertical rods 10 are fixedly connected to limiting plates 11. Four sliding holes are provided on the top of the circular placement table 8. The inner walls of the four sliding holes are slidably connected to the outer walls of the four vertical rods 10 respectively. The sliding holes assist the vertical rods 10 to move up and down.

[0027] A protective mechanism is provided at the bottom of the top plate 12, which includes a second electric push rod 13. A through hole is opened on the outer wall of the top plate 12, and the inner wall of the through hole is slidably connected to the outer wall of the output end of the second electric push rod 13. The top of the top plate 12 is fixedly connected to the outer wall of the second electric push rod 13.

[0028] The bottom of the output end of the second electric push rod 13 is fixedly connected to a frame 14, a drill bit 17 is installed at the bottom of the frame 14, the drill bit 17 is rotated by an existing driving device, and the drill bit and the driving device are horizontally moved as a whole by an existing electric translation table, the outer wall of the frame 14 is fixedly connected to two round rods 15, one end of the two round rods 15 is fixedly connected to the same protective frame 16, the protective frame 16 prevents splashing objects from injuring people and prevents dust from scattering, and an assembly groove is opened on the top of the protective frame 16, and the inner wall of the assembly groove is fixedly connected to the outer wall of the frame 14.

[0029] Working principle: when in use, the PCB is placed on the circular placement table 8, the first electric push rod 3 operates to drive the lifting frame 4 to move downward, the lifting frame 4 moves downward to drive the four bearings 7 to move downward, the four bearings 7 move downward to drive the four vertical rods 10 to move downward, the four vertical rods 10 move downward to drive the four limit plates 11 to move downward, the top of the PCB is squeezed and limited to prevent it from deflecting during drilling, and at the same time, the second electric push rod 13 operates to drive the frame 14 and the protective frame 16 to move downward, and the diameter of the protective frame 16 is larger than the diameter of the bottom box 1, when the frame 14 drives the drill bit 17 to move downward, the protective frame 16 can be sleeved on the bottom box 1, and at the same time, when the drill bit 17 generates dust during drilling, the fan 2 operates to form a negative pressure in the air inlet pipe 6, and the dust in the protective frame 16 and the outer surface of the PCB is sucked into the lifting frame 4 through multiple air inlet holes, and filtered through multiple filter cartridges 5, the dust accumulates in the lifting frame 4, and the filtered airflow is discharged through the air inlet pipe 6.

[0030] The standard parts used in the utility model can all be purchased from the market, special-shaped parts can be customized according to the description in the specification and the drawings, the specific connection methods of each part all adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art, the machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0031] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A PCB drilling device, comprising a bottom box (1), characterized in that: The bottom box (1) is fixedly connected to a fan (2) and a first electric push rod (3) at the top of the output end of the first electric push rod (3), a lifting frame (4) is fixedly connected to the inside of the lifting frame (4), a plurality of filter cartridges (5) are fixedly connected to the outer wall of the lifting frame (4), and one end of the plurality of air intake pipes (6) is fixedly connected to the outer wall of the fan (2). A limiting mechanism is provided at the top of the bottom box (1), and four top columns (18) are fixedly connected to the top of the four top columns (18), and the tops of the four top columns (18) are fixedly connected to the same top plate (12). A protective mechanism is provided at the bottom of the top plate (12).

2. A PCB drilling device according to claim 1, characterized in that: The limiting mechanism comprises four vertical rods (10), the top of the lifting frame (4) is fixedly connected with four bearings (7), the inner rings of the four bearings (7) are respectively fixedly connected with the outer walls of the four vertical rods (10), the top of the bottom box (1) is fixedly connected with a circular placement platform (8), and the tops of the four vertical rods (10) are all fixedly connected with limiting plates (11).

3. A PCB drilling device according to claim 1, characterized in that: The protective mechanism comprises a second electric push rod (13), the top of the top plate (12) is fixedly connected to the outer wall of the second electric push rod (13), the bottom of the output end of the second electric push rod (13) is fixedly connected to a frame (14), a drill bit (17) is installed at the bottom of the frame (14), and two round rods (15) are fixedly connected to the outer wall of the frame (14), and one end of the two round rods (15) is fixedly connected to the same protective frame (16).

4. A PCB drilling device according to claim 2, characterized in that: The circular placement platform (8) and the top of the bottom box (1) are both provided with a through groove (9), and the top of the lifting frame (4) is evenly provided with a plurality of air inlet holes.

5. A PCB drilling device according to claim 2, characterized in that: Four sliding holes are provided on the top of the circular placement platform (8), and the inner walls of the four sliding holes are respectively slidably connected to the outer walls of the four vertical rods (10).

6. A PCB drilling device according to claim 3, characterized in that: The outer wall of the top plate (12) is provided with a through hole, and the inner wall of the through hole is slidably connected to the outer wall of the output end of the second electric push rod (13).

7. A PCB drilling device according to claim 3, characterized in that: The top of the protection frame (16) is provided with an assembly groove, the inner wall of the assembly groove is fixedly connected to the outer wall of the frame (14), and the outer walls of the bottom box (1) and the lifting frame (4) are both hinged with sealing doors.

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