Drill bit opening device

By designing an automated drill bit opening device, the problems of high manual labor intensity and poor safety in the drill bit opening process were solved, and efficient and precise automated processing of drill bits was achieved.

CN224158160UActive Publication Date: 2026-04-24JIANGSU TIANGONG PRECISION TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TIANGONG PRECISION TOOLS CO LTD
Filing Date
2025-04-29
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In the existing technology, the drill bit opening process lacks fully automated equipment, resulting in high manual labor intensity, poor safety and low efficiency, which is especially evident when processing large drill bits.

Method used

A drill bit opening device was designed, comprising a worktable, a moving mechanism, a feeding mechanism, and a grinding mechanism. The device utilizes a feeding cylinder, a pushing assembly, a top-loading assembly, and a grinding assembly to achieve automated delivery and opening of the drill bit. Combined with a servo motor and a grinding wheel for precise grinding, it achieves fully automated operation.

Benefits of technology

It achieves full automation of drill bit opening, reduces labor costs, improves processing efficiency and precision, and ensures operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of machining, and particularly relates to a drill bit opening device which comprises a workbench, a moving mechanism, a feeding mechanism and a coping mechanism, the moving mechanism comprises a sliding plate, the feeding mechanism is arranged on the sliding plate, the feeding mechanism comprises a feeding box and a feeding air cylinder, one end of the feeding box is provided with a material groove, and the other end of the feeding box is provided with a feeding air cylinder. A material pushing assembly is arranged at the outer end of the material groove, the coping mechanism comprises a clamping assembly and a grinding assembly, the clamping assembly comprises a swinging head and a servo motor driving the swinging head to rotate, a limiting hole in butt joint with the material groove is formed in the swinging head, a material ejecting assembly is further arranged on the workbench, an ejector rod corresponds to the limiting hole, and the grinding assembly is arranged on the workbench. The grinding assembly comprises a rotating mechanism and a grinding wheel arranged above the rotating mechanism, a material receiving box is arranged above the workbench and corresponds to the lower portion of the feeding box, full automation of drilling bit opening is achieved, manual discharging is not needed, continuity of drilling bit machining is guaranteed, and machining efficiency is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and specifically relates to a drill bit opening device. Background Technology

[0002] Drill bits are one of the most commonly used cutting tools in industrial production. They can drill holes in various metal materials, such as copper, cast iron, and steel, as well as various non-metallic materials, such as concrete, bricks, and plastics. Therefore, they have a very wide range of applications.

[0003] Drill bits require opening during processing. Currently, there is no fully automated equipment for opening twist drill bits on the market. Manual feeding and unloading are still the norm, significantly increasing labor intensity and posing safety hazards. As machining precision requirements increase, higher demands are placed on various processing tools. While automated feeding mechanisms have been adopted, existing opening machines often use stepper feeders for feeding. For example, the CNC three-point woodworking drill bit opening machine disclosed in publication number CN101108465A solves the manual feeding problem. However, when processing large drill bits, due to their unique structure, stepper feed can only feed 10-20 bits at a time, requiring frequent worker monitoring. This greatly reduces work efficiency and increases labor costs. Furthermore, current drill bit opening methods suffer from poor precision and safety, thus failing to meet current production requirements.

[0004] Therefore, the above-mentioned issues should be considered and resolved during the process of opening large-diameter drill bits. Utility Model Content

[0005] To address the above problems and solve the aforementioned technical issues, this utility model discloses a drill bit opening device, the specific technical solution of which is as follows:

[0006] This utility model provides a drill bit opening device, including a worktable and a moving mechanism, a feeding mechanism, and a grinding mechanism disposed above the worktable. The moving mechanism includes a sliding plate, and the feeding mechanism is disposed on the sliding plate. The feeding mechanism includes a feeding box and a feeding cylinder. One end of the feeding box is provided with a material trough, and the outer end of the material trough is provided with a pushing assembly, which includes a push rod. The grinding mechanism includes a clamping assembly and a grinding assembly. The clamping assembly includes a swing head and a servo motor that drives the swing head to rotate. The swing head is provided with a limiting hole that mates with the material trough. The worktable is also provided with a top-loading assembly, which includes a top rod that is disposed corresponding to the limiting hole. The grinding assembly includes a rotating mechanism and a grinding wheel disposed above the rotating mechanism. A receiving box is provided below the feeding box above the worktable.

[0007] A further improvement of this utility model is that: the moving mechanism includes a transverse plate disposed above the worktable, two cross roller tracks are provided above the transverse plate, the slide plate is disposed above the cross roller tracks, and one side of the slide plate is connected to a moving cylinder by a fixing bolt.

[0008] A further improvement of this utility model is that: a vertical plate is provided above the slide plate, a fixed plate is provided on one side of the vertical plate, and the feeding mechanism is fixed on the fixed plate.

[0009] A further improvement of this utility model is that: the pushing component and the top component are arranged opposite to each other and have the same structure, both including a pushing motor, the output end of the pushing motor is provided with a movable screw, the movable screw is provided with a movable nut, and the push rod and the top rod are respectively provided on the two movable nuts.

[0010] A further improvement of this utility model is that: the feeding box includes a base plate and a surrounding plate disposed above the base plate, a feeding box seat is disposed above the base plate, a track is disposed above the base plate, a sliding part is disposed at the bottom of the feeding box seat and connected to the track, and the output end of the feeding cylinder is connected to the feeding box seat.

[0011] A further improvement of this utility model is that: the rotating mechanism includes a fixed plate, a rotating plate and a mounting plate, a drive motor for driving the grinding wheel is provided above the mounting plate, a rotating shaft is provided between the fixed plate and the rotating plate, a correction rotating shaft is provided between the rotating plate and the mounting plate, the rotating plate is connected to a first correction component, and the mounting plate is connected to a second correction component.

[0012] A further improvement of this utility model is that: the receiving end of the receiving box is connected to a sliding groove, the sliding groove is fixed to the workbench by a support foot, and a push block is provided at one end of the receiving box, the push block being connected to a push cylinder.

[0013] A further improvement of this utility model is that: the first correction component includes a first correction motor, the first correction motor is disposed on the worktable, the output end of the first correction motor is connected to a first lead screw, the first lead screw is provided with a first nut seat, and the first nut seat is connected to the rotating plate through a connecting plate.

[0014] A further improvement of this utility model is that: the second correction component includes a second correction motor, the second correction motor is disposed on the rotating plate, the output end of the second correction motor is connected to a second lead screw, the second lead screw is provided with a second nut seat, and the second nut seat is connected to the correction shaft.

[0015] A further improvement of this utility model is that: the end of the swing head is also provided with a guide sleeve seat, the guide sleeve seat is provided with a guide sleeve, and the guide sleeve and the limiting hole are on the same horizontal line.

[0016] Compared with existing technologies, this utility model can achieve the following technical effects: 1. This device has a simple structure, is easy to operate, and is compact. It feeds drill bits through a feeding box, achieving stable conveying of large batches of drill bits. Then, it uses a pushing assembly, a lifting assembly, a holding assembly, and a grinding assembly to open the drill bits, achieving fully automated drill bit opening. No manual feeding is required, ensuring the continuity of drill bit processing, greatly reducing labor costs, improving processing efficiency, and possessing good economic value; 2. By setting the grinding wheel on the rotating mechanism, it can effectively and in real-time correct the grinding wheel for the actual errors of different workpieces, facilitating precise opening of the drill bits and thus effectively improving grinding accuracy; 3. This device achieves full automation. Since operators do not need to directly perform grinding, they only need to stand to the side for supervision. Even if an accident occurs where the grinding wheel suddenly explodes during high-speed rotation, the operator will not be injured, improving operational safety. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the moving mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the rotating mechanism in this utility model;

[0022] Figure 5 This is a top view of the present invention;

[0023] Figure 6 This is a schematic diagram of the clamping component in this utility model;

[0024] Figure 7 This is a schematic diagram of the feeding box structure in this utility model;

[0025] Figure 8 This is a schematic diagram of the material receiving box structure in this utility model;

[0026] Figure 9This is a schematic diagram of the pusher assembly and the stationary assembly in this utility model;

[0027] Among them, 1-workbench, 2-transverse plate, 3-slide plate, 4-cross roller track, 5-fixing bolt, 6-moving cylinder, 7-upright plate, 8-fixed plate, 9-feeding box, 10-feeding cylinder, 11-base plate, 12-enclosed plate, 13-material box seat, 14-track, 15-sliding part, 16-material trough, 17-push rod, 18-top rod, 19-bed cover, 20-drive motor, 21-moving screw, 22-moving nut, 23-receiving box, 24-slide groove, 25-support leg 26-Push block, 27-Push cylinder, 28-Swing head, 29-Servo motor, 30-Limit hole, 31-Guide sleeve seat, 32-Guide sleeve, 33-Grinding wheel, 34-Protective cover, 35-Fixing plate, 36-Rotating plate, 37-Mounting plate, 38-Drive motor, 39-Rotating shaft, 40-Correction shaft, 41-First correction motor, 42-First lead screw, 43-First nut seat, 44-Connecting plate, 45-Second correction motor, 46-Second lead screw, 47-Second nut seat. Detailed Implementation

[0028] The following will describe in detail the implementation of this utility model with reference to the accompanying drawings and embodiments, so that the implementation of this utility model can be fully understood and carried out based on how technical means are used to solve technical problems and achieve technical effects.

[0029] This embodiment provides a drill bit opening device, including a workbench 1 and a moving mechanism, a feeding mechanism and a grinding mechanism disposed above the workbench. A bed cover 19 is also provided above the workbench 1 to improve the safety of the device and ensure the safety of the operator.

[0030] The moving mechanism includes a transverse plate 2 and a slide plate 3 disposed above the workbench 1. Two cross roller tracks 4 are provided above the transverse plate 2. The slide plate 3 is disposed above the cross roller tracks. A screw hole is provided on one side of the slide plate 3 and a moving cylinder 6 is connected by a fixing bolt 5. A vertical plate 7 is provided above the slide plate 3. A fixing plate 8 is provided on one side of the vertical plate 7. The feeding mechanism is disposed on the fixing plate 8.

[0031] The feeding mechanism includes a feeding box 9 and a feeding cylinder 10. The feeding box 9 includes a base plate 11 and a surrounding plate 12 disposed above the base plate 11. A material box seat 13 is disposed above the base plate 11, and a track 14 is disposed above the base plate 11. A sliding part 15 connected to the track 14 is disposed at the bottom of the material box seat 13. The output end of the feeding cylinder 10 is connected to the material box seat 13. A material trough 16 is disposed at one end of the feeding box 9, and a pushing assembly is disposed at the outer end of the material trough 16. The pushing assembly includes a push rod 17. A top-loading assembly is also disposed on the worktable 1. The top-loading assembly includes a top rod 1. 8. The pushing assembly and the top assembly are arranged opposite to each other and have the same structure. Both include a push motor 20. The output end of the push motor 20 is provided with a moving screw 21. The moving screw 21 is provided with a moving nut 22. The push rod 17 and the top rod 18 are respectively provided on the two moving nuts 22. A receiving box 23 is provided above the worktable 1 and below the feeding box 9. The receiving end of the receiving box 23 is connected to a slide groove 24. The slide groove 24 is fixed on the worktable 1 by a support leg 25. One end of the receiving box 23 is provided with a push block 26. The push block 26 is connected to a push cylinder 27.

[0032] The grinding mechanism includes a clamping assembly and a grinding assembly. The clamping assembly includes a swing head 28 and a servo motor 29 that drives the swing head 28 to rotate. The swing head 28 has a limiting hole 30 that mates with the material trough 16. The end of the swing head 28 is also provided with a guide sleeve seat 31. The guide sleeve seat 31 is provided with a guide sleeve 32. The top rod 18 and the push rod 17 are both provided corresponding to the limiting hole 30. The guide sleeve 32 and the limiting hole 30 are on the same horizontal line. The grinding assembly includes a rotating mechanism and a grinding wheel 33 disposed above the rotating mechanism. The grinding wheel 33 is provided with a protective cover 34. The rotating mechanism includes a fixed plate 35, a rotating plate 36, and a mounting plate 37. A drive motor 38 for driving the grinding wheel 33 is disposed above the mounting plate 37. A rotating shaft 39 is provided between the fixed plate 35 and the rotating plate 36. A correction shaft 40 is provided between the rotating plate 36 and the mounting plate 37. The rotating plate 36 is connected to a first correction assembly, and the mounting plate 37 is connected to a second correction assembly. The first correction component includes a first correction motor 41, which is mounted on the worktable 1. The output end of the first correction motor 41 is connected to a first lead screw 42. The first lead screw 42 is provided with a first nut seat 43, which is connected to the rotating plate 36 through a connecting plate 44. The second correction component includes a second correction motor 45, which is mounted on the rotating plate 36. The output end of the second correction motor 45 is connected to a second lead screw 46. The second lead screw 46 is provided with a second nut seat 47, which is connected to a correction shaft 40.

[0033] The drill bit opening device provided in this embodiment works as follows: First, the drill bit to be opened is placed on the feeding box 9. Then, the feeding cylinder 10 is activated to push the drill bit into the material trough 16. Next, the push motor 20 in the pushing assembly is activated, driving the moving screw 21 to rotate, causing the push rod 17 to move forward and push the drill bit in the material trough 16 into the limiting hole 30 in the swing head 28. The guide sleeve 32 is used to position the drill bit. Then, the rotating mechanism in the grinding assembly is activated to correct the position of the grinding wheel 33, aligning it with the swing head 28 to facilitate precise opening of the drill bit. Finally, the servo motor 29 is activated to rotate the swing head 28. Simultaneously, the grinding wheel 33 grinds and opens the drill bit. After the opening is completed, the moving cylinder 6 is activated, which drives the slide plate 3 to move outward, thereby moving the entire feeding mechanism outward so that the feeding box 9 avoids the receiving box 23. Then, the ejector assembly is activated, and the drill bit is ejected through the ejector rod 18, so that the drill bit falls directly into the slide groove 24 and then slides into the receiving box 23. The pushing cylinder 27 is activated, and the push block 26 pushes the drill bit so that the drill bit can be stacked in an orderly manner. Then, the moving cylinder 6 is activated again to reset the slide plate 3 so that the discharge end of the material trough 16 is aligned with the limiting hole 30, and the next round of opening work can begin.

[0034] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A drill bit opening device, characterized in that: The device includes a worktable and a moving mechanism, a feeding mechanism, and a grinding mechanism disposed above the worktable. The moving mechanism includes a sliding plate, and the feeding mechanism is disposed on the sliding plate. The feeding mechanism includes a feeding box and a feeding cylinder. One end of the feeding box is provided with a material trough, and the outer end of the material trough is provided with a pushing assembly, which includes a push rod. The grinding mechanism includes a clamping assembly and a grinding assembly. The clamping assembly includes a swing head and a servo motor that drives the swing head to rotate. The swing head has a limiting hole that mates with the material trough. The worktable is also provided with a top-loading assembly, which includes a top rod that is disposed corresponding to the limiting hole. The grinding assembly includes a rotating mechanism and a grinding wheel disposed above the rotating mechanism. A receiving box is disposed above the worktable below the feeding box.

2. The drill bit opening device according to claim 1, characterized in that: The moving mechanism includes a transverse plate disposed above the worktable, two intersecting roller tracks above the transverse plate, a slide plate disposed above the intersecting roller tracks, and a moving cylinder connected to one side of the slide plate by a fixing bolt.

3. The drill bit opening device according to claim 1, characterized in that: A vertical plate is provided above the slide plate, and a fixed plate is provided on one side of the vertical plate. The feeding mechanism is fixed on the fixed plate.

4. The drill bit opening device according to claim 1, characterized in that: The pushing assembly and the top assembly are arranged opposite to each other and have the same structure. Both include a pushing motor. The output end of the pushing motor is provided with a movable lead screw. The movable lead screw is provided with a movable nut. The push rod and the top rod are respectively provided on the two movable nuts.

5. A drill bit opening device according to claim 1, characterized in that: The feeding box includes a base plate and a surrounding plate disposed above the base plate. A feeding box seat is disposed above the base plate, and a track is disposed above the base plate. A sliding part connected to the track is disposed at the bottom of the feeding box seat. The output end of the feeding cylinder is connected to the feeding box seat.

6. A drill bit opening device according to claim 1, characterized in that: The rotating mechanism includes a fixed plate, a rotating plate, and a mounting plate. A drive motor for driving the grinding wheel is provided above the mounting plate. A rotating shaft is provided between the fixed plate and the rotating plate. A correction rotating shaft is provided between the rotating plate and the mounting plate. The rotating plate is connected to a first correction component, and the mounting plate is connected to a second correction component.

7. A drill bit opening device according to claim 1, characterized in that: The receiving end of the receiving box is connected to a slide groove, which is fixed to the workbench by a support leg. One end of the receiving box is provided with a push block, which is connected to a push cylinder.

8. A drill bit opening device according to claim 6, characterized in that: The first correction component includes a first correction motor, which is mounted on the worktable. The output end of the first correction motor is connected to a first lead screw, and a first nut seat is provided on the first lead screw. The first nut seat is connected to the rotating plate through a connecting plate.

9. A drill bit opening device according to claim 6, characterized in that: The second correction component includes a second correction motor, which is mounted on the rotating plate. The output end of the second correction motor is connected to a second lead screw, and a second nut seat is provided on the second lead screw. The second nut seat is connected to the correction shaft.

10. A drill bit opening device according to claim 1, characterized in that: The end of the swing head is also provided with a guide sleeve seat, and the guide sleeve seat is provided with a guide sleeve, the guide sleeve and the limiting hole are on the same horizontal line.

Citation Information

Patent Citations

  • Numerical control three-tip carpenter's drill tapping machine

    CN101108465A