Efficient heat dissipation drill bit structure

Abstract

The utility model relates to the technical field of mechanical drilling, and discloses an efficient heat dissipation drill bit structure which comprises a drill bit body and a circular plate, a cutter handle is fixedly connected to the lower surface of the drill bit body, a guide groove is formed in the inner wall of the cutter handle, and a concave plate is fixedly connected to the outer wall of the front side of the cutter handle. A transmission plate is rotatably connected to the outer wall of the middle of the concave plate, a transmission rod is rotatably connected to the interior of the transmission plate, U-shaped plates are fixedly connected to the two ends of the transmission rod, and a limiting assembly is arranged on the outer wall of the front side of the cutter handle and used for limiting shaking of the transmission plate. According to the cooling device, the limiting plate is pressed to enable the outer wall of the limiting plate to slide out of the inner wall of the transmission plate, the transmission plate is turned up and down to drive the U-shaped plate to move up and down under the action of the transmission rod, the baffle is driven to slide up and down, one end of the guide groove is controlled, the cutter handle is cooled, and the flow direction of cooling liquid is guided; therefore, the heat dissipation effect of the drill bit body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical drilling, in particular to a high-efficiency heat dissipation drill bit structure. Background Technique

[0002] A drill bit is a tool used for drilling and is widely applied in the fields of metal processing, wood processing, construction, and mining. It is usually made of hard materials such as high-speed steel, tungsten carbide, or diamond to ensure high wear resistance and strength during the drilling process. The drill bit requires an efficient heat dissipation structure mainly to prevent overheating, ensure that the heat generated during the drilling process can be dissipated in a timely manner, avoid softening of the drill bit material and performance degradation, thereby extending its service life. Good heat dissipation performance can improve the cutting efficiency, maintain the cutting sharpness of the drill bit, reduce the risk of thermal deformation or burning of the workpiece caused by high temperature, and at the same time improve the effect of the coolant, making it more effectively carry away heat and chips.

[0003] When the existing drill bit is in use, coolant is usually directly used to dissipate heat from the drill bit and the tool holder. Since the tool holder lacks the function of guiding the coolant, it is unable to effectively dissipate heat from the tool holder and the drill bit, resulting in the problem of low heat dissipation efficiency of the drill bit. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a high-efficiency heat dissipation drill bit structure, aiming to improve the problem of low heat dissipation efficiency of the drill bit when in use.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A high-efficiency heat dissipation drill bit structure, including a drill bit body and a circular plate. The lower surface of the drill bit body is fixedly connected with a tool holder. A guiding groove is opened on the inner wall of the tool holder. A concave plate is fixedly connected to the front outer wall of the tool holder. A transmission plate is rotatably connected to the middle outer wall of the concave plate. A transmission rod is rotatably connected to the inside of the transmission plate. Both ends of the transmission rod are fixedly connected with a U-shaped plate. A fixing rod is rotatably connected to the inside of the U-shaped plate. Both ends of the fixing rod are fixedly connected with a fixing block. A baffle is fixedly connected to the rear outer wall of the fixing block. Slide seats are slidably connected to both outer walls of the baffle. The rear outer wall of the slide seat is fixedly connected to the front outer wall of the tool holder. The rear outer wall of the baffle is arranged on the front outer wall of the tool holder. A limiting component is arranged on the front outer wall of the tool holder, and the limiting component is used to limit the sway of the transmission plate.

[0007] Preferably, the limiting component includes a limiting plate. The rear outer wall of the limiting plate is fixedly connected to the front outer wall of the tool holder. The upper outer wall of the limiting plate is arranged on the inner wall of the transmission plate.

[0008] Preferably, an annular groove is formed in the inner wall of the drill bit body, and a ventilation groove is formed inside the drill bit body.

[0009] Preferably, the upper surface of the circular plate is arranged on the lower surface of the tool shank, and a threaded rod is fixedly connected to the upper surface of the circular plate.

[0010] Preferably, the outer wall of the threaded rod is threadedly connected to the inner wall of the tool shank, and a connecting rod is fixedly connected to the inner wall of the threaded rod.

[0011] Preferably, a cleaning brush is fixedly connected to the upper surface of the connecting rod, and a sealing strip is fixedly connected to the upper surface of the cleaning brush.

[0012] Preferably, the outer walls of the cleaning brush and the sealing strip are both arranged inside the drill bit body.

[0013] Preferably, the outer walls of the cleaning brush and the sealing strip are both arranged inside the tool shank.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by pressing the limiting plate so that its outer wall slides out of the inner wall of the transmission plate, and by turning the transmission plate up and down, the U-shaped plate is driven to move up and down under the action of the transmission rod. Under the action of the fixed rod and the fixed block, the baffle is driven to slide up and down to control one end of the guide groove, so as to cool the tool shank and guide the flow direction of the coolant, thereby improving the heat dissipation effect of the drill bit body.

[0016] 2. In the utility model, by rotating the circular plate to drive the threaded rod to rotate and separate from the tool shank, and by pushing and pulling the circular plate to drive the connecting rod to move up and down, the cleaning brush is driven to move up and down inside the drill bit body and the tool shank, so as to clean the inside thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the high-efficiency heat dissipation drill bit structure proposed by the utility model;

[0018] Figure 2 is a schematic diagram of the guide groove of the high-efficiency heat dissipation drill bit structure proposed by the utility model;

[0019] Figure 3 is a schematic diagram of the sealing strip of the high-efficiency heat dissipation drill bit structure proposed by the utility model.

[0020] Legend:

[0021] 1. Drill bit body; 2. Tool shank; 3. Guide groove; 4. Concave plate; 5. Transmission plate; 6. Transmission rod; 7. U-shaped plate; 8. Fixed rod; 9. Fixed block; 10. Baffle; 11. Slide seat; 12. Annular groove; 13. Venting groove; 14. Circular plate; 15. Threaded rod; 16. Connecting rod; 17. Cleaning brush; 18. Sealing strip; 19. Limiting plate. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Refer to Figures 1 - 3 , an embodiment provided by the present invention: a high-efficiency heat dissipation drill bit structure, including a drill bit body 1 and a circular plate 14. The lower surface of the drill bit body 1 is fixedly connected to a tool shank 2. A guide groove 3 is provided on the inner wall of the tool shank 2. The front outer wall of the tool shank 2 is fixedly connected to a concave plate 4. The middle outer wall of the concave plate 4 is rotatably connected to a transmission plate 5. The inside of the transmission plate 5 is rotatably connected to a transmission rod 6. Both ends of the transmission rod 6 are fixedly connected to a U-shaped plate 7. The inside of the U-shaped plate 7 is rotatably connected to a fixed rod 8. Both ends of the fixed rod 8 are fixedly connected to a fixed block 9. The rear outer wall of the fixed block 9 is fixedly connected to a baffle 10. Both outer walls of the baffle 10 are slidably connected to a slide seat 11. The rear outer wall of the slide seat 11 is fixedly connected to the front outer wall of the tool shank 2. The rear outer wall of the baffle 10 is arranged on the front outer wall of the tool shank 2. A limiting component is arranged on the front outer wall of the tool shank 2, and the limiting component is used to limit the shaking of the transmission plate 5; the limiting component includes a limiting plate 19. The rear outer wall of the limiting plate 19 is fixedly connected to the front outer wall of the tool shank 2. The upper outer wall of the limiting plate 19 is arranged on the inner wall of the transmission plate 5;

[0024] Specifically, the coolant is guided more effectively to the cutting area of the drill bit body 1 through the guide groove 3 to enhance the cooling effect, thereby improving the heat dissipation effect of the drill bit body 1. By pulling the transmission plate 5 to drive the U-shaped plate 7 to rotate downward, driving the baffle 10 to slide downward, the effect of controlling one end of the guide groove 3 is achieved. By rotating the transmission plate 5 to a suitable position, the upper outer wall of the limiting plate 19 slides into the inner wall of the transmission plate 5. At the same time, the limiting plate 19 has a certain elasticity, thereby achieving the limiting effect on the transmission plate 5. The offset of the baffle 10 is restricted by the inner wall of the slide seat 11, and the support effect on the fixed rod 8 is achieved by the fixed block 9.

[0025] Refer to Figure 1, an annular groove 12 is provided on the inner wall of the drill bit body 1, and a ventilation groove 13 is provided inside the drill bit body 1;

[0026] Specifically, when the drill bit body 1 is in use, the annular groove 12 guides the cut chips, and the ventilation groove 13 dissipates heat from the drill bit body 1.

[0027] Refer to Figure 3 , the upper surface of the circular plate 14 is disposed on the lower surface of the tool shank 2, and a threaded rod 15 is fixedly connected to the upper surface of the circular plate 14; the outer wall of the threaded rod 15 is threadedly connected to the inner wall of the tool shank 2, and a connecting rod 16 is fixedly connected to the inner wall of the threaded rod 15; a cleaning brush 17 is fixedly connected to the upper surface of the connecting rod 16, and a sealing strip 18 is fixedly connected to the upper surface of the cleaning brush 17; the outer walls of the cleaning brush 17 and the sealing strip 18 are both disposed inside the drill bit body 1; the outer walls of the cleaning brush 17 and the sealing strip 18 are both disposed inside the tool shank 2;

[0028] Specifically, when it is necessary to clean the inside of the drill bit body 1, rotate the circular plate 14 to drive the threaded rod 15 to rotate, so that it moves downward under the action of the thread, thereby separating the threaded rod 15 from the tool shank 2. By pushing and pulling the circular plate 14, the connecting rod 16 reciprocates, and then drives the cleaning brush 17 to reciprocate up and down inside the drill bit body 1 and the tool shank 2 to clean it.

[0029] Working principle: When using this drill bit, the ventilation grooves 13 opened in the drill bit body 1 and its inner wall provide a heat dissipation space for the drill bit body 1, achieving the effect of dissipating the heat generated during the use of the drill bit body 1. The heat generated during the use of the drill bit body 1 will be transferred to the tool holder 2. When dissipating its heat, the coolant is made to flow through the guiding grooves 3, reducing the heat of the tool holder 2 and thus reducing the heat of the drill bit body 1. By pressing the limiting plate 19 so that its outer wall slides out of the inner wall of the transmission plate 5, and rotating the transmission plate 5 upward, the U-shaped plate 7 is driven to flip upward under the action of the transmission rod 6. The fixing rod 8 is driven to move downward by the U-shaped plate 7. Under the action of the fixing rod 8 and the fixing block 9, the baffle 10 is driven to slide upward in the inner wall of the sliding seat 11, achieving the effect of controlling the switch at one end of the guiding groove 3. When the drill bit body 1 is machining, the annular groove 12 guides the chips, avoiding continuous accumulation on the surface of the drill bit body 1. However, it is inevitable that some tiny chips will enter its inner wall through the ventilation grooves 13, thus affecting the heat dissipation of the drill bit body 1. By rotating the circular plate 14, the threaded rod 15 is separated from the tool holder 2 under the action of the thread, and then the cleaning brush 17 and the sealing strip 18 are driven to rotate inside the drill bit body 1. The rotation of the cleaning brush 17 achieves the effect of cleaning the chips inside the drill bit body 1. By pushing and pulling the connecting rod 16, the cleaning brush 17 cleans the chips inside the drill bit body 1 and the tool holder 2. The sealing strip 18 achieves the effect of preventing the cleaning brush 17 from missing chips. During the use of this drill bit, not only is the switch at one end of the guiding groove 3 controlled, the cooling effect is enhanced and thus the heat dissipation efficiency of the drill bit is improved, but also the effect of preventing the cutting chips from entering the inside of the drill bit body 1 and affecting the heat dissipation of the drill bit body 1 is achieved, and at the same time, the inside thereof is cleaned.

[0030] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. High-efficiency heat dissipation drill bit structure, including a drill bit body (1) and a circular plate (14), characterized in that: The lower surface of the drill bit body (1) is fixedly connected to a tool shank (2). A guiding groove (3) is provided on the inner wall of the tool shank (2). A concave plate (4) is fixedly connected to the front outer wall of the tool shank (2). A transmission plate (5) is rotatably connected to the middle outer wall of the concave plate (4). A transmission rod (6) is rotatably connected to the inside of the transmission plate (5). U-shaped plates (7) are fixedly connected to both ends of the transmission rod (6). A fixing rod (8) is rotatably connected to the inside of the U-shaped plate (7). Fixing blocks (9) are fixedly connected to both ends of the fixing rod (8). A baffle (10) is fixedly connected to the rear outer wall of the fixing block (9). Slide seats (11) are slidably connected to both outer walls of the baffle (10). The rear outer wall of the slide seat (11) is fixedly connected to the front outer wall of the tool shank (2). The rear outer wall of the baffle (10) is arranged on the front outer wall of the tool shank (2). A limiting assembly is provided on the front outer wall of the tool shank (2), and the limiting assembly is used to limit the swaying of the transmission plate (5).

2. The high-efficiency heat dissipation drill bit structure according to claim 1, characterized in that: The limiting assembly includes a limiting plate (19). The rear outer wall of the limiting plate (19) is fixedly connected to the front outer wall of the tool shank (2). The upper outer wall of the limiting plate (19) is arranged on the inner wall of the transmission plate (5).

3. The high-efficiency heat dissipation drill bit structure according to claim 1, characterized in that: An annular groove (12) is provided on the inner wall of the drill bit body (1). A ventilation groove (13) is provided inside the drill bit body (1).

4. The high-efficiency heat dissipation drill bit structure according to claim 1, characterized in that: The upper surface of the circular plate (14) is arranged on the lower surface of the tool shank (2). A threaded rod (15) is fixedly connected to the upper surface of the circular plate (14).

5. The high-efficiency heat dissipation drill bit structure according to claim 4, wherein: The outer wall of the threaded rod (15) is threadedly connected to the inner wall of the tool shank (2). A connecting rod (16) is fixedly connected to the inner wall of the threaded rod (15).

6. The high-efficiency heat dissipation drill bit structure according to claim 5, characterized in that: A cleaning brush (17) is fixedly connected to the upper surface of the connecting rod (16). A sealing strip (18) is fixedly connected to the upper surface of the cleaning brush (17).

7. The high-efficiency heat dissipation drill bit structure according to claim 6, characterized in that: The outer walls of the cleaning brush (17) and the sealing strip (18) are both arranged inside the drill bit body (1).

8. The high-efficiency heat dissipation drill bit structure according to claim 6, characterized in that: The outer walls of the cleaning brush (17) and the sealing strip (18) are both arranged inside the tool shank (2).

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