A hole digging device for LCD screens
By designing a drilling device with a vacuum suction cup, electric push rod, and transmission components, the problem of inconvenient drill bit disassembly and assembly in existing devices has been solved, enabling rapid drill bit replacement and drilling stability, thus improving the performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUZHOU DONGJUKANG PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-02
Smart Images

Figure CN224310929U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of hole-punching devices, specifically a hole-punching device for an LCD screen. Background Technology
[0002] The punch-hole device for LCD screens is a process system used to create holes in LCD screens to house components such as front-facing cameras. It involves two technical approaches: "through-hole" and "blind-hole." Through-hole technology requires penetrating both the liquid crystal layer and the backlight layer, allowing the camera to pass through the screen; this process is complex but produces better image quality. Blind-hole technology only creates a hole in the backlight layer, placing the camera below the liquid crystal layer; this process is relatively simple, but light transmittance may be affected. This device is primarily used in the smartphone industry to increase screen-to-body ratio and achieve full-screen designs. With technological advancements, some manufacturers have explored applying punch-hole technology to other devices, but LCD screens still hold a significant position in the mobile phone market due to cost and supply chain maturity. Punch-hole devices continue to be optimized to meet industry demands.
[0003] The existing drilling equipment is very inconvenient to install and remove drill bits, and it cannot quickly change to different models of drill bits according to the required hole size, resulting in poor performance. Utility Model Content
[0004] In order to overcome the shortcomings of the prior art, this utility model provides a hole-drilling device for LCD screens, which effectively solves the problems of inconvenient installation and removal of drill bits in existing hole-drilling devices, inability to quickly change different models of drill bits according to the required hole size, and poor performance.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a hole-drilling device for an LCD screen, comprising a worktable, a vacuum suction cup fixedly installed in the middle of the worktable, a support frame fixedly installed at one end of the top of the worktable, an electric push rod fixedly installed on the top of the support frame, a drive motor fixedly installed at the transmission end of the electric push rod, a docking block fixedly installed at the output end of the drive motor, a limit sleeve fixedly installed on the surface of the drive motor, a limit rod inserted into the inside of the limit sleeve, the top of the limit rod fixedly connected to the inner bottom of the support frame, a handwheel provided on the lower part of one side of the docking block, a transmission component provided on the upper part of the handwheel, an insert block inserted into the middle of the inside of the docking block, a hole-drilling drill bit fixedly installed at the bottom of the insert block, chucks provided on both sides of the inside of the docking block, and chuck holes opened on both sides of the insert block, the transmission component being connected to the two chucks in a transmission connection, and when the handwheel rotates, the power is output to the two chucks through the transmission component, causing the two chucks to engage or disengage from the two chuck holes.
[0006] Preferably, the transmission assembly includes a rotating shaft, which is fixedly mounted on the top of the handwheel. A bearing is rotatably mounted on the surface of the rotating shaft. One side of the bearing is fixedly connected to the mating block via a support rod. A threaded rod is fixedly mounted on the top of the rotating shaft. The top of the threaded rod is rotatably connected to the mating block via a positioning seat. A threaded sleeve is threadedly connected to the surface of the threaded rod.
[0007] Preferably, both sides of the threaded sleeve are fixedly mounted with transmission plates via support arms. Two inclined grooves are respectively opened on the surface of the two transmission plates. A moving block is fixedly mounted on the side of the two collets that are far apart from each other. A connecting block is fixedly mounted on the side of the two moving blocks that are far apart from each other. A transmission pin is fixedly mounted on both sides of the two connecting blocks. The four transmission pins are respectively inserted into the four inclined grooves.
[0008] Preferably, a slider is fixedly installed on the side of the transmission plate near the docking block, and a sliding groove is opened on both sides of the docking block. Two sliders are slidably installed inside the two sliding grooves. Sliding sleeves are fixedly installed on the upper and lower sides of the two connecting blocks. Sliding rods are inserted into the sliding sleeves. The two ends of the four sliding rods are fixedly connected to the inside of the docking block.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: During disassembly, the operator rotates the handwheel in the opposite direction. When the handwheel rotates in the opposite direction, it drives the threaded rod to rotate through the shaft. When the threaded rod rotates, it drives the threaded sleeve to move upward. When the threaded sleeve moves upward, it drives the two transmission plates to move upward through the two support arms. When the transmission plates move, they all drive the slider to slide inside the slide groove, which increases the stability of the transmission plates when they move. When the two transmission plates move upward, they drive the two connecting blocks to move in opposite directions through the cooperation of the four inclined grooves and the four transmission pins. When the connecting blocks move, they all drive the sliding sleeve to slide along the surface of the slide rod, which increases the stability of the two connecting blocks when they move. When the two connecting blocks move in opposite directions, they drive the two chucks to exit the two chuck holes through the two moving blocks, which releases the limit on the insert block, so that the drilling bit can be quickly disassembled.
[0010] During installation, the operator inserts the insert block of the new drilling bit into the center of the mating block, and then rotates the handwheel clockwise. This clockwise rotation causes the two connecting blocks to move towards each other. As the two connecting blocks move towards each other, the two moving blocks cause the two locking heads to engage with the two locking holes, thus limiting the insertion block and installing the drilling bit. This allows for quick replacement of the drilling bit. During use, the operator places the LCD screen on a vacuum suction cup for adhesion and fixation. Then, the drive motor is started to rotate the drilling bit. Next, the electric push rod is activated. As the electric push rod rotates, the drive motor moves the drilling bit downwards to drill a hole in the LCD screen. As the drive motor moves downwards, the limiting sleeve slides along the surface of the limiting rod, improving the stability of the drive motor and the drilling bit during movement. This makes the drilling device very convenient for installing and removing the drill bit, allowing for quick replacement of different drill bit models according to the required hole size, resulting in excellent performance. Attached Figure Description
[0011] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0012] In the attached diagram:
[0013] Figure 1 This is a schematic diagram of the hole-punching device for the LCD screen of this utility model;
[0014] Figure 2 This is a schematic diagram of the support frame structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the transmission component structure of this utility model;
[0016] Figure 4 This is a schematic diagram of the internal structure of the docking block of this utility model;
[0017] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0018] In the diagram: 1. Workbench; 2. Vacuum suction cup; 3. Support frame; 4. Electric push rod; 5. Drive motor; 6. Connecting block; 7. Limit sleeve; 8. Limit rod; 9. Handwheel; 10. Insert block; 11. Drill bit; 12. Chuck; 13. Shaft; 14. Bearing; 15. Support rod; 16. Threaded rod; 17. Threaded sleeve; 18. Positioning seat; 19. Support arm; 20. Transmission plate; 21. Inclined groove; 22. Transmission pin; 23. Connecting block; 24. Sliding sleeve; 25. Sliding rod; 26. Moving block; 27. Clamping hole; 28. Sliding block; 29. Slide groove. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0020] Depend on Figures 1 to 5 The present invention includes a workbench 1, a vacuum suction cup 2 fixedly installed in the middle of the workbench 1, a support frame 3 fixedly installed at one end of the top of the workbench 1, an electric push rod 4 fixedly installed on the top of the support frame 3, a drive motor 5 fixedly installed at the transmission end of the electric push rod 4, a docking block 6 fixedly installed at the output end of the drive motor 5, a limit sleeve 7 fixedly installed on the surface of the drive motor 5, a limit rod 8 inserted into the inside of the limit sleeve 7, the top of the limit rod 8 fixedly connected to the inner bottom of the support frame 3, a handwheel 9 provided on the lower part of one side of the docking block 6, a transmission component provided on the upper part of the handwheel 9, an insert block 10 inserted into the middle of the inside of the docking block 6, a drilling bit 11 fixedly installed at the bottom of the insert block 10, a chuck 12 provided on both sides of the inside of the docking block 6, and a chuck hole 27 opened on both sides of the insert block 10. The transmission component is connected to the two chucks 12 for transmission. When the handwheel 9 rotates, the power is output to the two chucks 12 through the transmission component, so that the two chucks 12 are engaged or disengaged from the two chuck holes 27.
[0021] During disassembly, the operator rotates the handwheel 9 in the opposite direction. When the handwheel 9 rotates in the opposite direction, it drives the two chucks 12 to exit the two chuck holes 27 through the transmission component, thereby releasing the restriction on the insert block 10, so that the drilling bit 11 can be quickly disassembled.
[0022] During installation, the operator inserts the insert block 10 on the new drilling bit 11 into the center of the mating block 6, and then rotates the handwheel 9 clockwise. As the handwheel 9 rotates clockwise, the transmission assembly drives the two chucks 12 to engage with the two chuck holes 27, limiting the insertion block 10 and thus installing the drilling bit 11, quickly completing the replacement of the drilling bit 11. During use, the operator places the LCD screen on the vacuum suction cup 2 for adhesion and fixation, then starts the drive motor 5 to rotate the drilling bit 11. Immediately afterwards, the electric push rod 4 is activated. As the electric push rod 4 rotates, the drive motor 5 drives the drilling bit 11 downwards to drill a hole in the LCD screen. As the drive motor 5 moves downwards, the limiting sleeve 7 slides along the surface of the limiting rod 8, improving the stability of the drive motor 5 and the drilling bit 11 during movement. This makes the drilling device very convenient to install and remove the drill bit, allowing for quick replacement of different drill bit models according to the required hole size, resulting in excellent performance.
[0023] The transmission assembly includes a rotating shaft 13, which is fixedly mounted on the top of the handwheel 9. A bearing 14 is rotatably mounted on the surface of the rotating shaft 13. One side of the bearing 14 is fixedly connected to the mating block 6 via a support rod 15. A threaded rod 16 is fixedly mounted on the top of the rotating shaft 13. The top of the threaded rod 16 is rotatably connected to the mating block 6 via a positioning seat 18. A threaded sleeve 17 is threadedly connected to the surface of the threaded rod 16.
[0024] Both sides of the threaded sleeve 17 are fixedly mounted with transmission plates 20 via support arms 19. Two inclined grooves 21 are respectively opened on the surface of the two transmission plates 20. Movable blocks 26 are fixedly mounted on the side of the two collets 12 that are far apart from each other. Connecting blocks 23 are fixedly mounted on the side of the two movable blocks 26 that are far apart from each other. Transmission pins 22 are fixedly mounted on both sides of the two connecting blocks 23. The four transmission pins 22 are respectively inserted into the four inclined grooves 21.
[0025] A slider 28 is fixedly installed on the side of the transmission plate 20 near the docking block 6. A groove 29 is opened on both sides of the docking block 6. The two sliders 28 are slidably installed inside the two grooves 29. Sliding sleeves 24 are fixedly installed on the upper and lower sides of the two connecting blocks 23. Sliding rods 25 are inserted into the sliding sleeves 24. The two ends of the four sliding rods 25 are fixedly connected to the inside of the docking block 6.
[0026] During disassembly, the operator rotates the handwheel 9 in the opposite direction. When the handwheel 9 rotates in the opposite direction, it drives the threaded rod 16 to rotate through the shaft 13. When the threaded rod 16 rotates, it drives the threaded sleeve 17 to move upward. When the threaded sleeve 17 moves upward, it drives the two transmission plates 20 to move upward through the two support arms 19. When the transmission plates 20 move, they drive the slider 28 to slide inside the slide groove 29, which increases the stability of the transmission plates 20 when they move. When the two transmission plates 20 move upward, they drive the two connecting blocks 23 to move in opposite directions through the cooperation of the four inclined grooves 21 and the four transmission pins 22. When the connecting blocks 23 move, they drive the sliding sleeve 24 to slide along the surface of the slide rod 25, which increases the stability of the two connecting blocks 23 when they move. When the two connecting blocks 23 move in opposite directions, they drive the two chucks 12 to exit the interior of the two chuck holes 27 through the two moving blocks 26, which releases the limit on the insert block 10, so that the drilling bit 11 can be quickly disassembled.
[0027] During installation, the operator rotates the handwheel 9 clockwise. When the handwheel 9 rotates clockwise, it will cause the two connecting blocks 23 to move towards each other. When the two connecting blocks 23 move towards each other, the two moving blocks 26 will cause the two clamping heads 12 to engage with the two clamping holes 27 to limit the insertion block 10, thereby installing the drilling bit 11 and quickly completing the replacement of the drilling bit 11.
Claims
1. A punching device for an LCD screen, comprising a worktable (1), characterized in that: A vacuum suction cup (2) is fixedly installed in the middle of the workbench (1). A support frame (3) is fixedly installed at one end of the top of the workbench (1). An electric push rod (4) is fixedly installed on the top of the support frame (3). A drive motor (5) is fixedly installed at the transmission end of the electric push rod (4). A docking block (6) is fixedly installed at the output end of the drive motor (5). A limit sleeve (7) is fixedly installed on the surface of the drive motor (5). A limit rod (8) is inserted into the inside of the limit sleeve (7). The top of the limit rod (8) is fixedly connected to the inner bottom of the support frame (3). The docking block (6) A handwheel (9) is provided on the lower part of one side, and a transmission component is provided on the upper part of the handwheel (9). A plug (10) is inserted into the middle of the inside of the docking block (6). A drilling bit (11) is fixedly installed at the bottom of the plug (10). A chuck (12) is provided on both sides inside the docking block (6). A chuck hole (27) is opened on both sides of the plug (10). The transmission component is connected to the two chucks (12). When the handwheel (9) rotates, the power is output to the two chucks (12) through the transmission component, so that the two chucks (12) can be inserted into or removed from the two chuck holes (27).
2. The punching device for an LCD screen according to claim 1, characterized in that: The transmission assembly includes a rotating shaft (13), which is fixedly installed on the top of the handwheel (9). A bearing (14) is rotatably installed on the surface of the rotating shaft (13). One side of the bearing (14) is fixedly connected to the docking block (6) via a support rod (15). A threaded rod (16) is fixedly installed on the top of the rotating shaft (13). The top of the threaded rod (16) is rotatably connected to the docking block (6) via a positioning seat (18). A threaded sleeve (17) is threadedly connected to the surface of the threaded rod (16).
3. The punching device for an LCD screen according to claim 2, characterized in that: Both sides of the threaded sleeve (17) are fixedly mounted with transmission plates (20) via support arms (19). Two inclined grooves (21) are respectively opened on the surface of the two transmission plates (20). Movable blocks (26) are fixedly mounted on the side of the two collets (12) that are far apart from each other. Connecting blocks (23) are fixedly mounted on the side of the two movable blocks (26) that are far apart from each other. Transmission pins (22) are fixedly mounted on both sides of the two connecting blocks (23). The four transmission pins (22) are respectively inserted into the four inclined grooves (21).
4. The punching device for an LCD screen according to claim 3, characterized in that: The transmission plate (20) is fixedly installed with sliders (28) on the side near the docking block (6). The docking block (6) has grooves (29) on both sides. The two sliders (28) are slidably installed inside the two grooves (29). The upper and lower sides of the two connecting blocks (23) are fixedly installed with sleeves (24). The sleeves (24) are inserted with slide rods (25). The two ends of the four slide rods (25) are fixedly connected to the inside of the docking block (6).