Alloy processing drill bit structure

Abstract

The utility model discloses a drill bit structure for alloy processing, including drill bit body, be equipped with two annular grooves on the drill bit body, two the annular groove all are through the stable mechanism sealed sliding and are equipped with the contact ring, be equipped with the heat dissipation channel in the drill bit body, the function box is equipped with function box side, be equipped with the rotary chamber and the movable chamber in the function box, be equipped with cooling liquid in the movable chamber, be equipped with the fin on the function box outer wall, two the contact ring all are through the connecting pipe and movable chamber intercommunication. The utility model discloses through setting up the heat dissipation channel in the drill bit body, is equipped with contact ring, function box, piston plate and connecting pipe etc. component simultaneously, has realized the good heat dissipation cooling processing of drill bit body, has guaranteed the service life of drill bit body.

Description

Technical Field

[0001] This utility model relates to the field of alloy processing technology, and in particular to a drill bit structure for alloy processing. Background Technology

[0002] In the field of alloy machining, materials such as aluminum alloys, titanium alloys, and nickel-based superalloys are characterized by high hardness and low thermal conductivity, posing a severe challenge to drill bit performance due to their drilling requirements. Drill bits for alloy machining are typically made of high-performance materials such as cemented carbide. These materials possess excellent hardness, wear resistance, and thermal stability, maintaining good cutting performance under high-load cutting conditions.

[0003] Currently, most alloy machining drill bits lack internal cooling structures, relying heavily on external pressure casting or spraying of coolant for cooling. However, the centrifugal force generated during drill rotation makes it difficult for coolant to overcome the air film barrier surrounding the drill bit and reach the cutting area. In deep hole machining scenarios, the coolant flow cannot effectively penetrate to the depths, failing to dissipate cutting heat in time. Consequently, the cutting heat cannot be dissipated promptly, causing the drill bit to wear rapidly under high temperatures. This necessitates frequent drill bit replacements, increasing tool change frequency and machining costs. Furthermore, heat accumulation can cause thermal deformation of the workpiece, affecting machining accuracy and quality. Therefore, a new drill bit structure for alloy machining is urgently needed to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a drill bit structure for alloy machining, in order to solve the problem mentioned in the background art that most current alloy machining drill bits do not have an internal cooling structure and the cooling mechanism is highly dependent on external pressure to pour or spray coolant.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drill bit structure for alloy processing, comprising a drill bit body, two annular grooves on the drill bit body, each annular groove having a contact ring slidably and sealed within it by a stabilizing mechanism, a heat dissipation channel within the drill bit body, a functional box on the side of the drill bit body, a rotating chamber and a movable chamber within the functional box, a coolant within the movable chamber, heat dissipation fins on the outer wall of the functional box, both contact rings being connected to the movable chamber via connecting pipes, a reciprocating screw within the rotating chamber, a piston plate slidably and sealed within the movable chamber, the reciprocating screw being connected to the piston plate via a connecting mechanism, and a power mechanism connected to the reciprocating screw on the outer wall of the functional box.

[0006] Preferably, the stabilizing mechanism includes a stabilizing ring mounted on the contact ring, and the inner wall of the annular groove is provided with a stabilizing groove corresponding to the stabilizing ring.

[0007] Preferably, the connecting mechanism includes a screw sleeve threaded onto a reciprocating screw, and multiple connecting rods are installed on the screw sleeve, with the ends of the multiple connecting rods fixedly connected to a piston plate.

[0008] Preferably, the power mechanism includes a drive motor fixedly mounted on the outer wall of the functional box, and the end of the output shaft of the drive motor is fixedly connected to a reciprocating lead screw.

[0009] Preferably, the heat dissipation channel is designed in a spiral shape, and the two ends of the heat dissipation channel are respectively connected to two annular grooves.

[0010] Preferably, both connecting pipes are equipped with valves, and both valves are one-way valves.

[0011] The beneficial effects of this utility model are:

[0012] 1. By setting up heat dissipation channels in the drill bit body and equipping it with components such as contact rings, function boxes, piston plates and connecting pipes, good heat dissipation and cooling treatment of the drill bit body is achieved, ensuring the service life of the drill bit body.

[0013] 2. The heat dissipation channel features a spiral design, effectively extending the residence time of the coolant within the drill bit body and enhancing heat exchange efficiency. The coolant can fully absorb the heat generated during drill bit processing, ensuring the drill bit operates at a suitable temperature, reducing wear and deformation caused by overheating, and extending the drill bit's service life. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a drill bit for alloy machining proposed in this utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the vertical section of components such as the drill bit body;

[0016] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A;

[0017] Figure 4 This is a structural diagram of the functional box and other components after vertical sectioning.

[0018] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0019] In the diagram: 1. Drill bit body; 2. Annular groove; 3. Contact ring; 4. Functional box; 5. Drive motor; 6. Heat sink; 7. Connecting pipe; 8. Heat dissipation channel; 9. Stabilizing ring; 10. Stabilizing groove; 11. Rotating chamber; 12. Moving chamber; 13. Reciprocating screw; 14. Piston plate; 15. Screw sleeve; 16. Connecting rod. Detailed Implementation

[0020] 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.

[0021] Reference Figure 1-5 A drill bit structure for alloy processing includes a drill bit body 1. The drill bit body 1 is provided with two annular grooves 2. Contact rings 3 are slidably provided in both annular grooves 2 through a stabilizing mechanism. As shown in the figure, the vertical cross-section of the contact rings 3 is U-shaped. When the contact rings 3 are installed in the annular grooves 2, there is coolant between the empty part of the contact rings 3 and the arc-shaped inner wall of the annular grooves 2.

[0022] The drill bit body 1 has a heat dissipation channel 8 inside, and a function box 4 is provided on the side of the drill bit body 1. The function box 4 has a rotating chamber 11 and a movable chamber 12 inside. The movable chamber 12 is filled with coolant. The outer wall of the function box 4 is provided with heat dissipation fins 6. Both contact rings 3 are connected to the movable chamber 12 through connecting pipes 7. The rotating chamber 11 is provided with a reciprocating screw 13. The movable chamber 12 is provided with a piston plate 14 that is sealed and slides inside. The reciprocating screw 13 is connected to the piston plate 14 through a connecting mechanism. The outer wall of the function box 4 is provided with a power mechanism connected to the reciprocating screw 13.

[0023] The stabilizing mechanism includes a stabilizing ring 9 mounted on the contact ring 3, and a stabilizing groove 10 corresponding to the stabilizing ring 9 is provided on the inner wall of the annular groove 2. The stabilizing ring 9 is located within the stabilizing groove 10 to ensure that the contact ring 3 can rotate stably within the annular groove 2, thus ensuring the stability of the equipment components during operation.

[0024] The connecting mechanism includes a screw sleeve 15 threaded onto a reciprocating screw 13. Multiple connecting rods 16 are mounted on the screw sleeve 15, and the ends of each connecting rod 16 are fixedly connected to a piston plate 14. The ends of the connecting rods 16 slide through the inner wall of the rotating chamber 11 and extend into the movable chamber 12. These connecting rods 16 limit the movement of the screw sleeve 15, preventing it from rotating along with the reciprocating screw 13.

[0025] The power mechanism includes a drive motor 5 fixedly mounted on the outer wall of the function box 4, with the output shaft of the drive motor 5 fixedly connected to the reciprocating lead screw 13. This drive motor 5 is the power unit, and its location outside the function box 4 provides a good heat dissipation environment.

[0026] The heat dissipation channel 8 is designed in a spiral shape. The two ends of the heat dissipation channel 8 are connected to two annular grooves 2 respectively, thus forming a coolant circulation path. The spiral design can extend the residence time of the coolant in the drill bit body 1 and enhance the heat exchange efficiency.

[0027] Both connecting pipes 7 are equipped with valves, both of which are one-way valves. These one-way valves control the unidirectional flow of coolant to prevent backflow.

[0028] Components not specifically described in this utility model are all standard parts and can be purchased from the market. The specific connection methods for each component all employ mature methods from the prior art, and will not be detailed here. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0029] When this utility model is in use, the drill bit body 1 is connected to the corresponding components and rotates to realize the processing of alloys. The drill bit body 1 rotates, but the contact ring 3 does not rotate with it due to the pull of the connecting pipe 7 and other components. During the rotation of the drill bit body 1, the drive motor 5 is in the starting state. The drive motor 5 can drive the reciprocating screw 13 to rotate. When the reciprocating screw 13 rotates, the piston plate 14 can move back and forth. When it moves away from the drive motor 5, the coolant in the moving chamber 12 can be sent into the annular groove 2 through a connecting pipe 7 and enter the heat dissipation channel 8. Then, it enters another annular groove 2 from the other end of the heat dissipation channel 8 and then returns to the moving chamber 12 through another connecting pipe 7, thereby realizing the heat dissipation operation of the drill bit body 1.

[0030] 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.

Claims

1. A drill bit structure for alloy machining, comprising a drill bit body (1), characterized in that, The drill bit body (1) is provided with two annular grooves (2), and each of the two annular grooves (2) is provided with a contact ring (3) through a stabilizing mechanism. The drill bit body (1) is provided with a heat dissipation channel (8). The drill bit body (1) is provided with a functional box (4) on the side. The functional box (4) is provided with a rotating chamber (11) and a movable chamber (12). The movable chamber (12) is provided with coolant. The outer wall of the functional box (4) is provided with heat sinks (6). The two contact rings (3) are connected to the movable chamber (12) through connecting pipes (7). The rotating chamber (11) is provided with a reciprocating screw (13). The movable chamber (12) is provided with a piston plate (14) through a sealing mechanism. The reciprocating screw (13) is connected to the piston plate (14) through a connecting mechanism. The outer wall of the functional box (4) is provided with a power mechanism connected to the reciprocating screw (13).

2. The drill bit structure for alloy machining according to claim 1, characterized in that, The stabilizing mechanism includes a stabilizing ring (9) mounted on the contact ring (3), and a stabilizing groove (10) corresponding to the stabilizing ring (9) is provided on the inner wall of the annular groove (2).

3. The drill bit structure for alloy machining according to claim 2, characterized in that, The connecting mechanism includes a screw sleeve (15) threaded onto a reciprocating screw (13), and multiple connecting rods (16) are installed on the screw sleeve (15), with the ends of the multiple connecting rods (16) being fixedly connected to the piston plate (14).

4. The drill bit structure for alloy machining according to claim 3, characterized in that, The power mechanism includes a drive motor (5) fixedly mounted on the outer wall of the function box (4), and the end of the output shaft of the drive motor (5) is fixedly connected to the reciprocating lead screw (13).

5. The drill bit structure for alloy machining according to claim 4, characterized in that, The heat dissipation channel (8) is designed in a spiral shape, and the two ends of the heat dissipation channel (8) are respectively connected to two annular grooves (2).

6. The drill bit structure for alloy machining according to claim 5, characterized in that, Both of the connecting pipes (7) are equipped with valves, and both valves are one-way valves.

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