A stepped structure can be repeatedly cut off by a cutting drill
By incorporating anti-slip rings, anti-slip pads, annular guide mechanisms, and spring buffer structures into the cutting drill bit, the problem of chip splashing in existing technologies is solved, achieving stability, safety, and low-cost maintenance in the cutting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN GONGYONG TOOLS FACTORY
- Filing Date
- 2025-05-22
- Publication Date
- 2026-06-12
AI Technical Summary
Existing stepped-structure cutting drill bits tend to generate a large amount of flying cutting debris during cutting operations, increasing the cost and difficulty of cleaning and maintenance.
A stepped cutting drill bit capable of multiple cuts was designed. It forms a stable support structure by contacting the cutting material through anti-slip rings and anti-slip pads. The cutting force is dispersed by a ring-shaped guiding mechanism, and the sliding cooperation between the guide rod and the guide cylinder provides a precise motion trajectory. Combined with the buffer function of the spring, it ensures that the protective cover fits tightly with the cutting material, preventing debris from flying and isolating the construction personnel.
It effectively suppresses the splashing of cutting chips, improves operational safety and cleanliness, reduces manual maintenance costs, and ensures the stability and precision of the cutting process.
Smart Images
Figure CN224346996U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cutting drill technology, specifically relating to a stepped structure cutting drill bit that can be cut multiple times. Background Technology
[0002] A cutting drill bit is a tool used to drill through holes or blind holes in solid materials. It performs cutting work through rotary motion. The design and material selection of a cutting drill bit have a significant impact on its performance. Common materials include cemented carbide and tungsten carbide.
[0003] Existing stepped-structure split-cutting drill bits tend to generate a large amount of flying cutting debris during cutting operations. This debris spreads into the working environment, increasing the cost and difficulty of subsequent cleaning and maintenance. Therefore, a stepped-structure cutting drill bit that can be split multiple times is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a stepped cutting drill bit that can be used for multiple cuts, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a stepped cutting drill bit capable of multiple cuts, comprising a mounting post, a connecting post fixedly connected to the top of the mounting post, a combined post fixedly connected to the top of the connecting post, a stepped cutting drill bit fixedly connected to the top of the combined post, a balance ring sleeved on the surface of the combined post, a rotating groove formed on one side surface of the balance ring, a rotating ring rotatably connected to the inner wall of the rotating groove, three supporting connecting plates fixedly connected to one side surface of the rotating ring, three guide cylinders fixedly connected to the surface of the balance ring, guide grooves formed inside the three guide cylinders, guide rods slidably connected to the inner walls of the three guide grooves, anti-slip pads fixedly connected to one end of each of the three guide rods, three springs fixedly connected to the top of the balance ring, a connecting ring fixedly connected to the other end of each of the three springs, a protective cover fixedly connected to the top of the connecting ring, and an anti-slip ring fixedly connected to the top of the protective cover.
[0006] By setting up the above structure, during the cutting process of the stepped cutting drill bit, the anti-slip ring and anti-slip pad form a stable support structure through point and surface contact with the cutting material, effectively resisting the cutting reaction force and ensuring the integrity of the sealed space. At the same time, it provides a reference for the adaptive displacement of the protective cover. The synchronous rotation design of the support plate linkage rotating ring in the rotating groove accurately maintains the relative position of the protective cover and the stepped cutting drill bit. Meanwhile, the ring guide mechanism disperses the cutting force and strengthens the structural rigidity. The sliding cooperation between the guide slide rod and the guide cylinder can provide a precise motion trajectory for the axial displacement of the protective cover, effectively suppressing radial sway and ensuring its continuous close contact with the cutting material. The protective cover can not only effectively intercept cutting debris, but also isolate the high-speed rotating stepped cutting drill bit from the construction personnel, improving the safety factor of the operation. The spring, as the core elastic element, buffers the cutting impact force through compression to avoid rigid collision damage, and automatically drives the protective cover to reset after cutting, realizing the cyclical and efficient operation of the protective structure and reducing manual maintenance costs.
[0007] As a preferred embodiment, the balancing ring slides on the surface of the composite column.
[0008] As a preferred embodiment, one end of each of the three supporting plates is fixedly connected to the top of the mounting column.
[0009] As a preferred embodiment, the three springs are located on the outside of the composite column.
[0010] As a preferred embodiment, the connecting ring slides on the surface of the composite column.
[0011] As a preferred embodiment, the protective cover is fitted over the outside of the stepped cutting drill bit.
[0012] By setting up a rotating ring and rotating groove, along with a balancing ring and support plate, the entire cutting drill bit can be provided with limiting and guiding functions, ensuring that the cutting drill bit remains stable during movement, avoiding deviation or shaking, and improving the stability and accuracy of the cutting process.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention, by setting up a protective cover, establishes a stable support structure through point and surface contact with the cutting material during the cutting process of a stepped cutting drill bit. This structure effectively resists cutting reaction forces, ensures the integrity of the sealed space, and provides a reference for the adaptive displacement of the protective cover. The synchronous rotation design of the support plate linkage rotating ring within the rotating groove precisely maintains the relative position of the protective cover and the stepped cutting drill bit. A ring-shaped guiding mechanism disperses cutting forces and enhances structural rigidity. The sliding cooperation between the guide rod and the guide cylinder provides a precise trajectory for the axial displacement of the protective cover, effectively suppressing radial sway and ensuring continuous close contact with the cutting material. The protective cover not only effectively intercepts cutting debris but also isolates the high-speed rotating stepped cutting drill bit from the workers, improving operational safety. The spring, as the core elastic element, buffers the cutting impact force through compression, preventing rigid collision damage, and automatically drives the protective cover to reset after cutting, achieving efficient cyclic operation of the protective structure and reducing manual maintenance costs.
[0015] This invention, by setting a rotating ring and a rotating groove, along with a balancing ring and a supporting plate, can provide limiting and guiding functions for the entire cutting drill bit, ensuring that the cutting drill bit remains stable during movement, avoiding deviation or shaking, and improving the stability and accuracy of the cutting process. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;
[0018] Figure 3 This is a schematic diagram of the rotating ring structure of this utility model viewed from below.
[0019] In the diagram: 1. Mounting post; 2. Connecting post; 3. Combination post; 4. Stepped cutting drill bit; 5. Balance ring; 6. Rotary groove; 7. Rotary ring; 8. Support plate; 9. Guide cylinder; 10. Guide slide groove; 11. Guide slide rod; 12. Anti-slip pad; 13. Spring; 14. Connecting ring; 15. Protective cover; 16. Anti-slip ring. Detailed Implementation
[0020] The present invention will be further described below with reference to the embodiments.
[0021] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0022] Please see Figure 1-3This utility model provides a stepped cutting drill bit capable of multiple cuts, including a mounting post 1, a connecting post 2 fixedly connected to the top of the mounting post 1, a combined post 3 fixedly connected to the top of the connecting post 2, a stepped cutting drill bit 4 fixedly connected to the top of the combined post 3, a balance ring 5 sleeved on the surface of the combined post 3, a rotating groove 6 formed on one side surface of the balance ring 5, a rotating ring 7 rotatably connected to the inner wall of the rotating groove 6, three supporting connecting plates 8 fixedly connected to one side surface of the rotating ring 7, and three guide plates 8 fixedly connected to the surface of the balance ring 5. The guide cylinder 9 has guide grooves 10 inside each of the three guide cylinders 9. Guide rods 11 are slidably connected to the inner walls of the three guide grooves 10. Anti-slip pads 12 are fixedly connected to one end of each of the three guide rods 11. Three springs 13 are fixedly connected to the top of the balance ring 5. Connecting rings 14 are fixedly connected to the other ends of the three springs 13. A protective cover 15 is fixedly connected to the top of the connecting ring 14. An anti-slip ring 16 is fixedly connected to the top of the protective cover 15. By setting the protective cover 15, the cutting action of the stepped cutting drill bit 4 is controlled. During the process, the anti-slip ring 16 and anti-slip pad 12 form a stable support structure through point and surface contact with the cutting material, effectively resisting the cutting reaction force and ensuring the integrity of the sealed space. At the same time, they provide a reference for the adaptive displacement of the protective cover 15. The synchronous rotation design of the support plate linkage rotating ring 7 in the rotating groove 6 accurately maintains the relative position of the protective cover 15 and the stepped cutting drill bit 4. Meanwhile, the ring guide mechanism disperses the cutting force and strengthens the structural rigidity. The sliding cooperation between the guide slide rod 11 and the guide cylinder 9 can provide a precise motion trajectory for the axial displacement of the protective cover 15, effectively suppressing radial sway and ensuring its continuous close contact with the cutting material. The protective cover 15 can not only effectively intercept cutting debris, but also isolate the high-speed rotating stepped cutting drill bit 4 from the construction personnel, improving the safety factor of the operation. The spring 13, as the core elastic element, buffers the cutting impact force through compression to avoid rigid collision damage, adapts to the displacement of the protective cover 15, and automatically drives the protective cover 15 to reset after cutting, realizing the cyclical and efficient operation of the protective structure and reducing manual maintenance costs.
[0023] The balance ring 5 slides on the surface of the combined column 3.
[0024] One end of each of the three supporting connecting plates 8 is fixedly connected to the top of the mounting column 1.
[0025] The three springs 13 are located on the outside of the composite column 3.
[0026] The connecting ring 14 slides on the surface of the combined column 3.
[0027] The protective cover 15 is fitted onto the outside of the stepped cutting drill bit 4. By setting the rotating ring 7 and rotating groove 6, together with the balance ring 5 and the support plate 8, it can provide limiting and guiding functions for the entire cutting drill bit, ensuring that the cutting drill bit remains stable during movement, avoiding deviation or shaking, and improving the stability and accuracy of the cutting process.
[0028] Working principle and usage process of this utility model:
[0029] The stepped cutting drill bit 4 is securely connected to the electric drill via the mounting post 1. Then, the anti-slip ring 16 and three anti-slip pads 12 on the protective cover 15 are tightly fitted to the cutting material. The electric drill is started, driving the stepped cutting drill bit 4 to rotate at high speed to perform cutting operations. During this process, the support plate drives the rotating ring 7 to rotate synchronously along the rotating groove 6. Under the action of the cutting force, the guide slide rod 11 slides in the guide cylinder 9 towards the balance ring 5. At the same time, the protective cover 15 also moves synchronously. During this process, the spring 13 will be compressed and deformed to adapt to the displacement requirements of the protective cover 15 in real time, ensuring that it always keeps in close contact with the cutting material, forming an effective sealed protective space, thereby efficiently intercepting the chips generated by cutting and preventing them from flying everywhere. When the cutting operation is completed, the spring 13 releases its elastic potential energy, driving the protective cover 15 to automatically reset, preparing for subsequent use and improving the safety and cleanliness of the cutting operation.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stepped-structure cutting drill bit capable of multiple cuts, comprising a mounting post (1), characterized in that: A connecting column (2) is fixedly connected to the top of the mounting column (1), a combined column (3) is fixedly connected to the top of the connecting column (2), a stepped cutting drill bit (4) is fixedly connected to the top of the combined column (3), a balance ring (5) is fitted on the surface of the combined column (3), a rotating groove (6) is opened on one side surface of the balance ring (5), a rotating ring (7) is rotatably connected to the inner wall of the rotating groove (6), three supporting connecting plates (8) are fixedly connected to one side surface of the rotating ring (7), and three guide cylinders (9) are fixedly connected to the surface of the balance ring (5). The interior of each of the three guide cylinders (9) is provided with a guide groove (10), and the inner walls of the three guide grooves (10) are slidably connected with guide rods (11). One end of each of the three guide rods (11) is fixedly connected with an anti-slip pad (12). The top of the balance ring (5) is fixedly connected with three springs (13), and the other end of each of the three springs (13) is fixedly connected with a connecting ring (14). The top of the connecting ring (14) is fixedly connected with a protective cover (15), and the top of the protective cover (15) is fixedly connected with an anti-slip ring (16).
2. The stepped-structure cutting drill bit capable of multiple cuts according to claim 1, characterized in that: The balance ring (5) slides on the surface of the combined column (3).
3. A stepped-structure cutting drill bit capable of multiple cuts according to claim 1, characterized in that: One end of each of the three supporting plates (8) is fixedly connected to the top of the mounting column (1).
4. A stepped-structure cutting drill bit capable of multiple cuts according to claim 1, characterized in that: The three springs (13) are located outside the composite column (3).
5. A stepped-structure cutting drill bit capable of multiple cuts according to claim 1, characterized in that: The connecting ring (14) slides on the surface of the combined column (3).
6. A stepped-structure cutting drill bit capable of multiple cuts according to claim 1, characterized in that: The protective cover (15) is fitted over the outside of the stepped cutting drill bit (4).