Alloy coating drill with auxiliary cooling structure
By incorporating an air-cooled structure and a limiting block connection mechanism into the alloy-coated drill bit, the environmental pollution and resource waste caused by cooling water during drilling are solved, achieving efficient cooling and convenient drill bit replacement.
Patent Information
- Application Number
- CN202520389612.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Existing alloy-coated drills cause environmental pollution and water waste during the drilling process by continuously injecting cooling water.
The system adopts an air-cooled cooling structure, using a battery pack embedded in the drill rod to provide power to the cooling element. The air-cooled cooling of the gas is achieved through the through hole and the flow hole, avoiding the environmental pollution and resource waste of water cooling. The drill bit can be quickly disassembled and stably connected through the limit block and the connecting mechanism.
It achieves effective cooling during the drilling process, avoiding environmental pollution and water waste, while also improving the ease of drill bit replacement and connection stability.
Smart Images

Figure CN223889004U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an alloy-coated drill, specifically an alloy-coated drill with an auxiliary cooling structure, belonging to the field of coating drill technology. Background Technology
[0002] Alloy-coated drills are drilling tools with one or more layers of alloy coating on the surface of the drill bit substrate. The alloy coating usually has high hardness, which can effectively resist friction and wear between the drill bit and the workpiece material during cutting, reduce the amount of drill bit wear, thereby extending the service life of the drill bit, reducing processing costs, and forming a smooth lubricating film between the drill bit and the workpiece, reducing the coefficient of friction between the two, reducing the generation of cutting force and cutting heat. This not only helps to improve drilling efficiency, but also improves the surface quality of the machined part and reduces the generation of burrs and built-up edge.
[0003] In the prior art, such as the carbide drill bit for drilling glass surfaces disclosed in CN207825236U, this type of carbide drill bit for drilling glass surfaces has a simple structure and is easy to use. It can quickly drill holes in glass surfaces with carbide drill bits, ensuring the quality of the glass surface drilling. Through the first water outlet hole on the drill tip and multiple second water outlet holes on the cutting end, cooling water can be injected into the contact surface between the glass and the drill bit during the drilling process to cool the glass drilling surface and the drill bit, thus extending the service life of the drill bit. Here, the multiple second water outlet holes on the cutting end can reduce the frictional cooling between the cutting end of the drill bit and the glass drilling surface, preventing the high temperature generated by the friction between the cutting end of the drill bit and the glass drilling surface as the drill bit drills deeper from causing the glass to expand and crack, thereby effectively improving the drilling quality of glass surfaces by carbide drill bits.
[0004] However, in implementing the relevant technology, it was found that the above-mentioned design of a carbide drill bit for drilling glass surfaces has the following problems: In the prior art, cooling water is injected to achieve an auxiliary cooling effect, but in the actual use, continuous injection of cooling water will not only affect the processing environment and make the subsequent cleaning work cumbersome, but also waste water resources. In view of this, an alloy coated drill bit with an auxiliary cooling structure is provided to overcome the above defects. Utility Model Content
[0005] This invention addresses the problem that continuous injection of cooling water during use not only impacts the processing environment and leads to tedious post-processing cleaning, but also wastes water resources. It provides an alloy-coated drill with an auxiliary cooling structure.
[0006] The present invention achieves the above objectives through the following technical solution: an alloy coated drill with an auxiliary cooling structure, including a connecting end, a drill rod fixedly installed at the bottom end of the connecting end, and a drill bit protruding from the bottom end of the drill rod, and a cooling mechanism provided on the outside of the drill rod;
[0007] The cooling mechanism includes a mounting shell, which is fixedly installed on the outer wall of the drill pipe. A battery pack is embedded in the lower part of the mounting shell. A charging port is opened at the front end of the mounting shell, and a filter screen is embedded above the charging port at the front end of the mounting shell. Cooling plates are embedded at both ends of the interior of the mounting shell.
[0008] As a further improvement of this utility model: the top of the drill bit is provided with a through hole, and the lower part of the outer wall of the drill bit is provided with a flow hole.
[0009] As a further improvement of this utility model: the mounting shell is connected to the through hole via a drill rod, and the through hole is connected to the flow hole.
[0010] As a further embodiment of this utility model: a fixing mechanism is provided below the outer wall mounting shell of the drill rod. The fixing mechanism includes a sliding groove, which is opened below the outer wall mounting shell of the drill rod. One end of the axis of the sliding groove is connected to a slot. A limit block is fixedly installed on the outer wall of the drill rod at the position corresponding to the slot. A collar is sleeved on the outside of the sliding groove on the outer wall of the drill rod.
[0011] As a further improvement of this utility model, the slide groove has an L-shaped structure and is connected to the card slot.
[0012] As a further embodiment of this utility model: a connecting mechanism is provided at one end of the drill bit that protrudes from the drill rod. The connecting mechanism includes a mounting frame, which is fixed to the outer wall of the end of the drill bit that protrudes from the drill rod. A connecting rod is fixedly installed inside the mounting frame, and a rotating rod is rotatably connected to the outer wall of one end of the connecting rod inside the mounting frame.
[0013] As a further improvement of this utility model: the outer wall of the drill rod is provided with a mounting groove corresponding to the position of the rotating rod, and the inner wall of the rotating rod is provided with a through hole corresponding to the position of the connecting rod.
[0014] The beneficial effects of this utility model are as follows: By installing a rechargeable battery pack in the housing and providing power to the cooling element through compatible electronic components and cables, the cooling element is activated when the drill rod drives the drill bit to rotate. During the rotation, the inclined surface installation facilitates gas entry and increases the gas flow rate. After the cooling element cools down, the gas enters the drill rod through the through hole and is discharged through the flow hole, achieving the effect of air cooling. This can play an auxiliary cooling role during the operation of the drill rod, avoiding the situation where water cooling makes the working environment difficult to clean and wastes water resources. The filter screen can filter dust and impurities in the air to prevent them from entering the drill bit.
[0015] The beneficial effects of this utility model are: the limiting block for fixing the drill bit slides along the slide groove, allowing the drill bit to pass through the drill rod, and the limiting block slides along the L-shaped slide groove. After passing through the slot, the position is adjusted by the collar connected to the drill rod threadedly, thereby abutting against the limiting block and locking and limiting through the slot. This allows for quick assembly and disassembly of the drill rod and drill bit, and quick replacement when the drill bit is damaged, improving applicability and convenience.
[0016] The beneficial effects of this utility model are as follows: before the drill rod and drill bit are initially fixed, the angle of the rotating rod can be adjusted through the mounting bracket and connecting rod via the through hole, so that it can be inserted into the corresponding mounting groove. When the position is adjusted by the collar, the mounting groove is closed at the same time to limit the rotation rod, which further improves the stability of the connection between the drill rod and the drill bit, increases the torque bearing capacity between the drill rod and the drill bit during rotation, and avoids the situation where the limiting block is subjected to excessive force and deforms. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the drill pipe structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the battery pack structure of this utility model;
[0020] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle;
[0021] Figure 5 This is a schematic diagram of the insertion hole structure of this utility model.
[0022] In the diagram: 1. Connecting end; 2. Drill rod; 3. Drill bit; 4. Cooling mechanism; 401. Mounting housing; 402. Battery pack; 403. Charging port; 404. Cooling element; 405. Filter screen; 406. Through hole; 407. Flow hole; 5. Fixing mechanism; 501. Slide groove; 502. Slot; 503. Limiting block; 504. Collar; 6. Connecting mechanism; 601. Mounting bracket; 602. Connecting rod; 603. Rotating rod; 604. Insertion hole; 605. Placement slot. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1
[0024] like Figures 1 to 5 As shown, an alloy-coated drill with an auxiliary cooling structure includes a connecting end 1, a drill rod 2 fixedly mounted at the bottom end of the connecting end 1, a drill bit 3 extending from the bottom end of the drill rod 2, and a cooling mechanism 4 disposed outside the drill rod 2. The cooling mechanism 4 includes a mounting shell 401, which is fixedly mounted on the outer wall of the drill rod 2. A battery pack 402 is embedded in the lower part of the mounting shell 401. A charging port 403 is opened at the front end of the mounting shell 401, a filter screen 405 is embedded above the charging port 403 at the front end of the mounting shell 401, and cooling plates 404 are embedded at both ends inside the mounting shell 401. A through hole 406 is opened at the top end of the drill bit 3, and a flow hole 407 is opened at the lower part of the outer wall of the drill bit 3. The mounting shell 401 is connected to the through hole 406 via the drill rod 2. Hole 406 is interconnected, and through hole 406 is interconnected with flow hole 407; a rechargeable battery pack 402 is embedded in the mounting shell 401, and power is provided to the cooling chip 404 through the adapter electronic components and cables, etc. When the drill rod 2 drives the drill bit 3 to rotate, the cooling chip 404 is activated. During the rotation, the inclined surface of the mounting shell 401 facilitates the entry of gas and increases the gas flow speed. After the cooling chip 404 is cooled, it enters the drill rod 2 through the through hole 406 and is discharged through the flow hole 407, which achieves the effect of air cooling. It can play an auxiliary cooling role in the working process of the drill rod 2, avoiding the situation where water cooling makes the working environment difficult to clean and wastes water resources. The filter screen 405 can filter dust and impurities in the air to prevent them from entering the drill bit 3. Example 2
[0025] In addition to all the technical features included in Embodiment 1, this embodiment also includes: a fixing mechanism 5 is provided below the outer wall mounting shell 401 of the drill rod 2. The fixing mechanism 5 includes a sliding groove 501, which is located below the outer wall mounting shell 401 of the drill rod 2. One end of the sliding groove 501 is connected to a slot 502. A limit block 503 is fixedly installed on the outer wall of the drill rod 2 at the position corresponding to the slot 502. A collar 504 is sleeved on the outside of the sliding groove 501 on the outer wall of the drill rod 2. The structure of the sliding groove 501 is L-shaped. The structure features a sliding groove 501 that communicates with a slot 502. The limiting block 503, which is fixed to the drill bit 3, slides along the sliding groove 501, allowing the drill bit 3 to pass through the drill rod 2. The limiting block 503 slides along the L-shaped sliding groove 501 and passes through the slot 502. Its position is adjusted by the collar 504, which is threaded to the drill rod 2, so that it abuts against the limiting block 503. The slot 502 engages and limits the drill bit 3, allowing for quick assembly and disassembly of the drill rod 2 and quick replacement when the drill bit 3 is damaged, thus improving applicability and convenience. Example 3
[0026] In addition to all the technical features in Embodiment 1, this embodiment also includes: a connecting mechanism 6 is provided at one end of the drill bit 3 that protrudes from the drill rod 2. The connecting mechanism 6 includes a mounting frame 601, which is fixed to the outer wall of the end of the drill bit 3 that protrudes from the drill rod 2. A connecting rod 602 is fixedly installed inside the mounting frame 601. A rotating rod 603 is rotatably connected to the outer wall of one end of the connecting rod 602 inside the mounting frame 601. A mounting groove 605 is provided on the outer wall of the drill rod 2 corresponding to the position of the rotating rod 603. The inner wall of the rotating rod 603 corresponds to the position of the connecting rod 602. An insertion hole 604 is provided at the position; before the drill rod 2 and drill bit 3 are initially fixed, the angle of the rotating rod 603 can be adjusted through the insertion hole 604 via the mounting bracket 601 and connecting rod 602, so that it can be inserted into the corresponding mounting groove 605. When the position is adjusted by the collar 504, the mounting groove 605 is closed to limit the rotating rod 603, further improving the stability of the connection between the drill rod 2 and drill bit 3, increasing the torque bearing capacity between the drill rod 2 and drill bit 3 during rotation, and avoiding the situation where the limiting block 503 is subjected to excessive force and deforms.
[0027] Working principle: Connecting end 1 is used to connect with the machine tool or power end. The limiting block 503 that fixes the drill bit 3 slides through the slide groove 501 and enters the slot 502. After that, it is connected to the drill rod 2 by the collar 504 and adjusted to abut against it, so that the drill rod 2 and the drill bit 3 can be quickly disassembled and assembled, which is convenient for quick replacement of the drill bit 3 after damage. The battery pack 402 embedded in the mounting shell 401 is rechargeable. It can be charged when the drill bit 3 is not working through the charging port 403. After charging, the cable provides power to the cooling plate 404 for cooling, so that when the drill rod 2 is drilling, it will tilt. The mounting shell 401 rotates, allowing air to circulate quickly and cool before entering the drill rod 2. The air then flows through the through hole 406 and exits through the flow hole 407, thus providing air-cooled assistance for the drill bit 3. The filter screen 405 filters out dust and other contaminants. After the drill rod 2 and drill bit 3 are initially fixed, the angle of the rotating rod 603 is adjusted through the through hole 604 with the cooperation of the mounting bracket 601 and the connecting rod 602. This allows the rod to pass through the mounting groove 605 and be limited by the collar 504, increasing the torque bearing capacity when the drill rod 2 drives the drill bit 3 to rotate and preventing loosening.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An alloy-coated drill with an auxiliary cooling structure, comprising a connecting end (1), characterized in that: The bottom end of the connecting end (1) is fixedly installed with a drill rod (2), and a drill bit (3) protrudes from the bottom end of the drill rod (2). A cooling mechanism (4) is provided on the outside of the drill rod (2). The cooling mechanism (4) includes a mounting shell (401), which is fixedly installed on the outer wall of the drill rod (2). A battery pack (402) is embedded in the lower part of the mounting shell (401). A charging port (403) is opened at the front end of the mounting shell (401), and a filter screen (405) is embedded above the charging port (403) at the front end of the mounting shell (401). Cooling plates (404) are embedded at both ends inside the mounting shell (401).
2. The alloy-coated drill with an auxiliary cooling structure according to claim 1, characterized in that: The drill bit (3) has a through hole (406) at its top end and a flow hole (407) at the bottom of its outer wall.
3. The alloy-coated drill with an auxiliary cooling structure according to claim 1, characterized in that: The mounting shell (401) is connected to the through hole (406) via the drill rod (2), and the through hole (406) is connected to the flow hole (407).
4. The alloy-coated drill with an auxiliary cooling structure according to claim 1, characterized in that: A fixing mechanism (5) is provided below the outer wall mounting shell (401) of the drill rod (2). The fixing mechanism (5) includes a sliding groove (501). The sliding groove (501) is located below the outer wall mounting shell (401) of the drill rod (2), and a slot (502) is connected to one end of the axis of the sliding groove (501). A limit block (503) is fixedly installed on the outer wall of the drill rod (2) at the position corresponding to the slot (502). A collar (504) is sleeved on the outside of the sliding groove (501) of the outer wall of the drill rod (2).
5. The alloy-coated drill with an auxiliary cooling structure according to claim 4, characterized in that: The slide (501) has an L-shaped structure and is connected to the slot (502).
6. The alloy-coated drill with an auxiliary cooling structure according to claim 1, characterized in that: The drill bit (3) is provided with a connecting mechanism (6) at one end of the drill rod (2). The connecting mechanism (6) includes a mounting frame (601). The mounting frame (601) is fixed to the outer wall of the end of the drill bit (3) that is exposed to the drill rod (2). A connecting rod (602) is fixedly installed inside the mounting frame (601). A rotating rod (603) is rotatably connected to the outer wall of one end of the connecting rod (602) inside the mounting frame (601).
7. The alloy-coated drill with an auxiliary cooling structure according to claim 1, characterized in that: The drill rod (2) has a mounting groove (605) on its outer wall corresponding to the position of the rotating rod (603), and the rotating rod (603) has an insertion hole (604) on its inner wall corresponding to the position of the connecting rod (602).
Citation Information
Patent Citations
Be used for boring hard alloy drill bit in glass surface
CN207825236U