Pcd sandwich drill bit with debris collection chamber

By designing a chip collection chamber in the PCD sandwich drill bit, and using a motor-driven threaded rod and cleaning plate to automatically clean the chips, the problem of chip cleaning during drilling is solved, improving efficiency and accuracy, and reducing labor intensity and safety risks.

CN224543949UActive Publication Date: 2026-07-24HENAN LEADTEC MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN LEADTEC MATERIALS CO LTD
Filing Date
2025-08-22
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing PCD sandwich drill bits produce debris during drilling that is difficult to clean automatically, affecting drilling accuracy and efficiency, and increasing the labor intensity and safety threats to operators.

Method used

A PCD sandwich drill bit with a debris collection chamber was designed. The automatic cleaning and collection of debris is achieved through components such as a threaded rod, a moving sleeve, a cleaning plate, and a collection box. The threaded rod is driven by a motor to rotate, and the moving sleeve drives the cleaning plate to push the debris into the cleaning opening and fall into the collection box. The stability and accuracy of the drill bit are enhanced by the lifting mechanism and the stabilizing rod.

Benefits of technology

It enables automatic cleaning and collection of debris, reduces the labor intensity of operators, improves cleaning efficiency, ensures drilling accuracy and safety, and extends the service life of the motor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PCD sandwich drill bit with scrap collecting cavity, including work table, work table outer wall is rotationally installed with threaded rod through the moving groove, work table outer wall is fixedly installed with the first motor of threaded rod connection, threaded rod outer wall is fixedly installed with the moving sleeve through the limiting mechanism screw, moving sleeve outer wall is fixedly installed with the cleaning plate through the connecting mechanism, work table upper end face is provided with the cleaning opening of cleaning plate cooperation. The utility model discloses a threaded rod, moving sleeve, cleaning plate, and collection box etc. component can realize to work table, upper end face scrap automatic cleaning and collection, and the first motor drives threaded rod to rotate, and moving sleeve drives cleaning plate to move, and pushes the scrap into the cleaning opening, can realize to work table, upper end face scrap automatic cleaning and collection, and then falls into the collection box, does not need manual cleaning, reduces the labor intensity of operating personnel, and improves the cleaning efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of drill bit technology, and in particular to a PCD sandwich drill bit with a chip collection chamber. Background Technology

[0002] PCD sandwich drill bits are a type of drill bit that uses a composite structure of diamond (PCD) and cemented carbide. Diamond micropowder is embedded into the cemented carbide matrix through high-pressure sintering technology to form a "sandwich" structure.

[0003] PCD sandwich drills are widely used in drilling various materials due to their excellent cutting performance and wear resistance. However, a large amount of debris is generated during the drilling process. If this debris is not cleaned in time, it will not only affect the accuracy and efficiency of drilling, but may also threaten the safety of operators and pollute the working environment. In terms of debris cleaning, many existing drilling equipment require operators to manually clean the debris on the worktable, which increases the labor intensity of operators and has low cleaning efficiency and insufficient practicality. Therefore, it is necessary to redesign a PCD sandwich drill with a debris collection chamber to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a PCD sandwich drill bit with a debris collection chamber.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A PCD sandwich drill bit with a debris collection chamber includes a worktable. A threaded rod is rotatably mounted on the outer wall of the worktable via a movable slot. A first motor connected to the threaded rod is fixedly mounted on the outer wall of the worktable. A movable sleeve is threadedly mounted on the outer wall of the threaded rod via a limiting mechanism. A cleaning plate is fixedly mounted on the outer wall of the movable sleeve via a connecting mechanism. A cleaning opening that mates with the cleaning plate is opened on the upper surface of the worktable. A collection box that mates with the cleaning opening is slidably mounted on the outer wall of the worktable via a sliding opening. Two handles are fixedly mounted on the outer wall of the collection box. An installation frame is fixedly mounted on the outer wall of the worktable via a support plate. A connecting plate is fixedly mounted on the inner wall of the installation frame via a lifting mechanism. A second motor is fixedly mounted on the bottom wall of the connecting plate via a protective mechanism. The drill bit body is fixedly mounted on the outer wall of the output shaft of the second motor.

[0007] Preferably, the limiting mechanism includes a limiting rod fixedly installed inside the moving groove, the limiting rod sliding through the moving sleeve.

[0008] Preferably, the connecting mechanism includes a connecting rod fixedly installed on the outer wall of the movable sleeve, and the end of the connecting rod is fixedly connected to the outer wall of the cleaning plate.

[0009] Preferably, the lifting mechanism includes a cylinder fixedly installed on the inner wall of the mounting frame, and the telescopic end of the cylinder is fixedly connected to the upper surface of the connecting plate.

[0010] Preferably, the protective mechanism includes a protective frame fixedly installed on the bottom wall of the connecting plate, and the second motor is fixedly installed inside the protective frame.

[0011] Preferably, two stabilizing rods are fixedly installed on the upper surface of the connecting plate, and limit blocks are fixedly installed at the ends of the two stabilizing rods, and the two stabilizing rods slide through the support plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as a threaded rod, a moving sleeve, a cleaning plate, and a collection box, the system can automatically clean and collect debris from the upper surface of the worktable. The first motor drives the threaded rod to rotate, and the moving sleeve drives the cleaning plate to move, pushing the debris into the cleaning opening. This enables the automatic cleaning and collection of debris from the upper surface of the worktable, which then falls into the collection box. This eliminates the need for manual cleaning, reduces the labor intensity of operators, and improves cleaning efficiency.

[0014] 2. By setting components such as stabilizer bars and limit blocks, the stabilizer bars, in cooperation with the limit blocks, enhance the stability of the connecting plate during movement, prevent the drill bit from shaking during drilling, and further ensure drilling accuracy. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a PCD sandwich drill bit with a debris collection chamber proposed in this utility model;

[0016] Figure 2 This is a side view of a PCD sandwich drill bit with a debris collection chamber proposed in this utility model.

[0017] Figure 3 for Figure 1 A schematic diagram of the vertical section structure;

[0018] Figure 4 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0019] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0020] In the diagram: 1. Workbench, 2. Threaded rod, 3. First motor, 4. Limiting rod, 5. Moving sleeve, 6. Connecting rod, 7. Cleaning plate, 8. Cleaning opening, 9. Collection box, 10. Handle, 11. Support plate, 12. Mounting frame, 13. Cylinder, 14. Connecting plate, 15. Stabilizing rod, 16. Limiting block, 17. Protective frame, 18. Second motor, 19. Drill bit body. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5 A PCD sandwich drill bit with a debris collection chamber includes a worktable 1. A threaded rod 2 is rotatably mounted on the outer wall of the worktable 1 via a moving groove. A first motor 3 connected to the threaded rod 2 is fixedly mounted on the outer wall of the worktable 1. A moving sleeve 5 is threadedly mounted on the outer wall of the threaded rod 2 via a limiting mechanism. The limiting mechanism includes a limiting rod 4 fixedly mounted inside the moving groove. The limiting rod 4 slides through the moving sleeve 5. The sliding cooperation between the limiting rod 4 and the moving sleeve 5 can limit the moving sleeve 5 from rotating synchronously with the threaded rod 2, ensuring that it moves linearly along the axial direction of the threaded rod 2, and providing guidance for the stable movement of the cleaning plate 7.

[0023] A cleaning plate 7 is fixedly installed on the outer wall of the movable sleeve 5 via a connecting mechanism. The connecting mechanism includes a connecting rod 6 fixedly installed on the outer wall of the movable sleeve 5. The end of the connecting rod 6 is fixedly connected to the outer wall of the cleaning plate 7. The connecting rod 6 acts as a bridge between the movable sleeve 5 and the cleaning plate 7, transmitting the power of the movable sleeve 5 to the cleaning plate 7, so that the cleaning plate 7 moves synchronously with the movable sleeve 5, thereby achieving the cleaning action on the surface of the workbench 1. A cleaning opening 8 that mates with the cleaning plate 7 is provided on the upper surface of the workbench 1. A receiving device that mates with the cleaning opening 8 is slidably installed on the outer wall of the workbench 1 through the sliding opening. The collection box 9 has two handles 10 fixedly installed on its outer wall. The workbench 1 has an installation frame 12 fixedly installed on its outer wall via a support plate 11. The inner wall of the installation frame 12 has a connecting plate 14 fixedly installed via a lifting mechanism. The lifting mechanism includes a cylinder 13 fixedly installed on the inner wall of the installation frame 12. The telescopic end of the cylinder 13 is fixedly connected to the upper end face of the connecting plate 14. The cylinder 13 drives the connecting plate 14 to move up and down through its telescopic movement, thereby controlling the lifting and lowering of the drill bit body 19 to meet the drilling requirements of different depths. Its driving force is stable and can ensure the smoothness of the drilling process.

[0024] Two stabilizing rods 15 are fixedly installed on the upper surface of the connecting plate 14. Limiting blocks 16 are fixedly installed at the ends of the two stabilizing rods 15. The two stabilizing rods 15 slide through the support plate 11 and move synchronously with the connecting plate 14, which can enhance the stability of the connecting plate 14 when it is raised and lowered and prevent it from shaking. The limiting blocks 16 can prevent the stabilizing rods 15 from slipping out of the support plate 11 and ensure the safety of the structure. A second motor 18 is fixedly installed on the bottom wall of the connecting plate 14 through a protective mechanism. The protective mechanism includes a protective frame 17 fixedly installed on the bottom wall of the connecting plate 14. The second motor 18 is fixedly installed inside the protective frame 17. The protective frame 17 can block the debris generated by drilling from falling onto the second motor 18, preventing the debris from affecting the normal operation of the motor. At the same time, it provides physical protection for the motor and extends its service life. A drill bit body 19 is fixedly installed on the outer wall of the output shaft of the second motor 18.

[0025] When using this utility model, the workpiece to be processed is first placed on the upper surface of the workbench 1, and the workpiece is clamped and fixed by the externally adapted positioning components to ensure that the workpiece will not shift due to vibration during the drilling process. Then, the connection status of each component of the equipment is checked to confirm that the threaded rod 2 rotates smoothly in the moving groove, the threaded engagement between the moving sleeve 5 and the threaded rod 2 is without jamming, and the limiting rod 4 can stably pass through the moving sleeve 5 to play a guiding role.

[0026] Next, adjust the workpiece according to the drilling position so that the part to be processed is directly below the drill bit body 19. Start the lifting mechanism in the mounting frame 12 and control the extension end of the cylinder 13 to push the connecting plate 14 downward. At this time, the two stabilizing rods 15 on the upper surface of the connecting plate 14 slide synchronously along the through hole of the support plate 11. The limiting block 16 at the end of the stabilizing rod 15 can prevent it from falling off the support plate 11, ensuring that the connecting plate 14 moves down smoothly. At the same time, the protective frame 17 in the protective mechanism moves synchronously with the connecting plate 14. The second motor 18 inside it drives the drill bit body 19 to gradually approach the workpiece surface. Start the second motor 18. After the drill bit body 19 rotates at high speed, continue to control the feed depth through the cylinder 13 to complete the drilling operation. The debris generated during the process is scattered on the upper surface of the worktable 1. The protective frame 17 effectively prevents the debris from splashing into the second motor 18.

[0027] After drilling is completed, the second motor 18 is turned off and the drill bit body 19 is reset by the cylinder 13. The first motor 3 is started, and its output shaft drives the threaded rod 2 to rotate. Under the constraint of the limit rod 4, the moving sleeve 5 drives the cleaning plate 7 to slide along the surface of the workbench 1 through the connecting rod 6 of the connecting mechanism, pushing the debris into the cleaning opening 8 and finally falling into the collection box 9 installed below through the sliding opening. When the collection box 9 is full of debris, the operator can hold the handles 10 on both sides and pull it out of the workbench 1. After emptying the debris, it is put back into the sliding opening to complete one complete operation cycle.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A PCD sandwich drill bit with a debris collection chamber, comprising a worktable (1), characterized in that, The outer wall of the workbench (1) is rotatably mounted with a threaded rod (2) via a movable slot. The outer wall of the workbench (1) is fixedly mounted with a first motor (3) connected to the threaded rod (2). The outer wall of the threaded rod (2) is threadedly mounted with a movable sleeve (5) via a limiting mechanism. The outer wall of the movable sleeve (5) is fixedly mounted with a cleaning plate (7) via a connecting mechanism. The upper end face of the workbench (1) is provided with a cleaning opening (8) that cooperates with the cleaning plate (7). The outer wall of the workbench (1) is slidably mounted with a collection box (9) that cooperates with the cleaning opening (8) via a sliding opening. The outer wall of the collection box (9) is fixedly mounted with two handles (10). The outer wall of the workbench (1) is fixedly mounted with an installation frame (12) via a support plate (11). The inner wall of the installation frame (12) is fixedly mounted with a connecting plate (14) via a lifting mechanism. The bottom wall of the connecting plate (14) is fixedly mounted with a second motor (18) via a protective mechanism. The outer wall of the output shaft of the second motor (18) is fixedly mounted with a drill bit body (19).

2. The PCD sandwich drill bit with a debris collection chamber according to claim 1, characterized in that, The limiting mechanism includes a limiting rod (4) fixedly installed inside the moving groove, and the limiting rod (4) slides through the moving sleeve (5).

3. A PCD sandwich drill bit with a debris collection chamber according to claim 2, characterized in that, The connecting mechanism includes a connecting rod (6) fixedly installed on the outer wall of the movable sleeve (5), and the end of the connecting rod (6) is fixedly connected to the outer wall of the cleaning plate (7).

4. A PCD sandwich drill bit with a debris collection chamber according to claim 3, characterized in that, The lifting mechanism includes a cylinder (13) fixedly installed on the inner wall of the mounting frame (12), and the telescopic end of the cylinder (13) is fixedly connected to the upper end face of the connecting plate (14).

5. A PCD sandwich drill bit with a debris collection chamber according to claim 4, characterized in that, The protective mechanism includes a protective frame (17) fixedly installed on the bottom wall of the connecting plate (14), and the second motor (18) is fixedly installed inside the protective frame (17).

6. A PCD sandwich drill bit with a debris collection chamber according to claim 5, characterized in that, Two stabilizing rods (15) are fixedly installed on the upper end face of the connecting plate (14). Limiting blocks (16) are fixedly installed at the ends of the two stabilizing rods (15). The two stabilizing rods (15) slide through the support plate (11).