Anti-tipping inner-cooled drill bit

Abstract

The utility model relates to the technical field of drill bits, and discloses an anti-tipping inner-cooled drill bit, which solves the problems that an alloy millstone at the head part of the existing anti-tipping inner-cooled drill bit is very troublesome to disassemble and assemble, the alloy millstone is inconvenient to replace by an operator when the alloy millstone is damaged, the labor amount of the operator is increased, and the working efficiency is reduced. The anti-tipping inner-cooling drill bit comprises an anti-tipping inner-cooling drill bit body, a connector is fixedly installed at the bottom of the anti-tipping inner-cooling drill bit body, a connecting groove is formed in the connector, a connecting cylinder is arranged in the connecting groove, and four limiting grooves are annularly formed in the inner wall of the connecting groove at equal intervals; four limiting protrusions are annularly and fixedly installed on the surface of the connector at equal intervals. According to the anti-tipping inner-cooled drill bit head, the alloy millstone is very convenient to disassemble and assemble, and operators can replace the alloy millstone when the alloy millstone is damaged, so that the labor amount of the operators is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of drill bits, and particularly relates to an anti-edge-chipping type internal cooling drill bit. Background Art

[0002] The anti-edge-chipping type internal cooling drill bit is a special machining tool, which combines an anti-edge-chipping design with an internal cooling system to optimize the efficiency and performance during the drilling process; during the drilling operation, the anti-edge-chipping type internal cooling drill bit cools the cutting area through the internal cooling system and has a drill bit with anti-edge-chipping characteristics; the inside of the drill bit is designed with cooling channels for introducing coolant (such as water, cutting fluid, etc.), which are directly sprayed onto the cutting channels through the spray holes, effectively reducing the temperature of the cutting area, reducing thermal stress and thermal deformation, thereby improving the durability and machining accuracy of the drill bit; the drill bit adopts special materials and structural designs, such as using wear-resistant materials such as cemented carbide and high-speed steel, and optimizing the geometric shape and angle of the drill tip to enhance the anti-edge-chipping ability of the drill bit and improve its stability and durability when machining hard materials or performing deep-hole machining;

[0003] When disassembling and assembling the alloy grinding disc at the head of the existing anti-edge-chipping type internal cooling drill bit, it is very troublesome. When the alloy grinding disc is damaged, it is not convenient for the operator to replace it, increasing the labor intensity of the operator and reducing the work efficiency. Content of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an anti-edge-chipping type internal cooling drill bit, which effectively solves the problems that it is very troublesome to disassemble and assemble the alloy grinding disc at the head of the anti-edge-chipping type internal cooling drill bit, it is not convenient for the operator to replace it when the alloy grinding disc is damaged, increasing the labor intensity of the operator and reducing the work efficiency.

[0005] To achieve the above object, the utility model provides the following technical solution: an anti-edge-chipping type internal cooling drill bit, including an anti-edge-chipping type internal cooling drill bit body, a connector is fixedly installed at the bottom of the anti-edge-chipping type internal cooling drill bit body, a connection groove is opened inside the connector, a connection cylinder is arranged inside the connection groove, four limiting grooves are annularly and equidistantly opened on the inner wall of the connection groove, four limiting protrusions are annularly and equidistantly fixedly installed on the surface of the connector, the four limiting protrusions are installed inside the four limiting grooves, an alloy grinding disc is fixedly installed at the bottom of the connection cylinder, several grinding edges are fixedly installed at the bottom of the alloy grinding disc, an installation groove is opened in the upper part inside the connector, a quick disassembly and assembly component is arranged between the inside of the installation groove and the connection groove, and four fixed connection blocks are annularly and equidistantly fixedly installed on the inner wall of the connection cylinder, and arc-shaped limiting slots are opened inside the four fixed connection blocks.

[0006] Preferably, the quick disassembly and assembly component includes a driving motor, which is fixedly installed on one inner wall of the installation groove. The output end of the driving motor is fixedly installed with a first bevel gear. The lower part of the surface of the first bevel gear is meshed with a second bevel gear. The bottom of the second bevel gear is fixedly installed with a shaft rod. A shaft sleeve is rotatably installed on the surface of the shaft rod. The shaft sleeve is fixedly installed between the connection groove and the installation groove. The bottom of the shaft rod extends into the connection groove and is fixedly installed with a first gear.

[0007] Preferably, a first shaft seat is rotatably installed at the bottom of the first gear. The bottom of the first shaft seat is fixedly installed with an L-shaped frame. The top of the L-shaped frame is fixedly connected to one side of the inner top of the connection groove. One side of the first gear is meshed with a second gear. A rotating rod is fixedly installed in the middle of the second gear. The top of the rotating rod is rotatably installed with a second shaft seat. The top of the second shaft seat is fixedly connected to the inner top of the connection groove.

[0008] Preferably, a cross-shaped connection frame is fixedly installed at the bottom of the rotating rod. Arc-shaped limiting inserts are fixedly installed at the four ends of the cross-shaped connection frame. The four arc-shaped limiting inserts are matched with four arc-shaped limiting slots.

[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: During installation, the operator inserts the connecting cylinder into the connection groove and at the same time inserts the four limiting protrusions into the four limiting grooves. Then, the operator starts the driving motor to rotate forward. When the driving motor rotates forward, it drives the first bevel gear to rotate. When the first bevel gear rotates, it drives the shaft rod to rotate along the inside of the shaft sleeve through the second bevel gear. When the shaft rod rotates, it drives the first gear to rotate along the first shaft seat on the L-shaped frame. When the first gear rotates, it drives the rotating rod to rotate along the second shaft seat through the second gear. When the rotating rod rotates, it drives the four arc-shaped limiting inserts to rotate through the cross-shaped connection frame. When the four arc-shaped limiting inserts rotate, they are inserted into the four arc-shaped limiting slots in the four fixedly connected blocks for limiting, so as to quickly complete the installation;

[0010] During disassembly, the operator starts the driving motor to rotate in the reverse direction. When the driving motor rotates in the reverse direction, it will drive the four arc-shaped limiting inserts to rotate in the reverse direction through the cross-shaped connection frame, so that the four arc-shaped limiting inserts are withdrawn from the four arc-shaped limiting slots in the four fixedly connected blocks to release the limit, so as to quickly complete the disassembly; This makes the disassembly and assembly of the alloy grinding disc at the head of the anti-edge-chipping type internal cooling drill very convenient. When the alloy grinding disc is damaged, it is beneficial for the operator to replace it, thereby reducing the labor intensity of the operator and improving the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0012] In the accompanying drawings:

[0013] Figure 1 This is a schematic structural diagram of the anti-edge-chipping type internal cooling drill bit of the present utility model;

[0014] Figure 2 This is a schematic structural diagram of the limiting groove and the limiting protrusion of the present utility model;

[0015] Figure 3 This is a schematic internal structure diagram of the connector and the connecting cylinder of the present utility model Figure 1 ;

[0016] Figure 4 This is a schematic internal structure diagram of the connector and the connecting cylinder of the present utility model Figure 2 ;

[0017] In the figure: 1. Anti-edge-chipping type internal cooling drill bit body; 2. Connector; 3. Alloy grinding disc; 4. Grinding edge; 5. Connecting groove; 6. Connecting cylinder; 7. Limiting groove; 8. Limiting protrusion; 9. Installation groove; 10. Driving motor; 11. First bevel gear; 12. Second bevel gear; 13. Shaft rod; 14. Bush; 15. First gear; 16. First shaft seat; 17. L-shaped frame; 18. Second gear; 19. Rotating rod; 20. Second shaft seat; 21. Cross connecting frame; 22. Arc-shaped limiting insertion strip; 23. Fixed connecting block; 24. Arc-shaped limiting slot. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] By Figures 1 to 4Provided that, the utility model includes an anti-edge-collapse type internal cooling drill bit body 1. An internal cooling system for cooling is installed inside the anti-edge-collapse type internal cooling drill bit body 1. A connector 2 is fixedly installed at the bottom of the anti-edge-collapse type internal cooling drill bit body 1. A connection groove 5 is formed inside the connector 2. A connection cylinder 6 is arranged inside the connection groove 5. Four limiting grooves 7 are annularly and equidistantly formed on the inner wall of the connection groove 5. Four limiting protrusions 8 are annularly and equidistantly fixedly installed on the surface of the connector 2. The four limiting protrusions 8 are installed inside the four limiting grooves 7. An alloy grinding disc 3 is fixedly installed at the bottom of the connection cylinder 6. A plurality of grinding blades 4 are fixedly installed at the bottom of the alloy grinding disc 3. The grinding blades 4 are made of wear-resistant high-speed steel, so as to ensure its wear resistance and anti-edge-collapse performance. An installation groove 9 is formed in the upper part inside the connector 2. A quick disassembly and assembly component is arranged between the inside of the installation groove 9 and the inside of the connection groove 5. Four fixed connection blocks 23 are annularly and equidistantly fixedly installed on the inner wall of the connection cylinder 6. An arc-shaped limiting slot 24 is formed inside each of the four fixed connection blocks 23.

[0020] During installation, the operator inserts the connection cylinder 6 into the inside of the connection groove 5, and at the same time inserts the four limiting protrusions 8 into the four limiting grooves 7. Then the operator starts the forward rotation of the quick disassembly and assembly component. When the quick disassembly and assembly component rotates forward, it is inserted into the four arc-shaped limiting slots 24 inside the four fixed connection blocks 23 for limiting, so as to quickly complete the installation; during disassembly, the operator starts the reverse rotation of the quick disassembly and assembly component. When the quick disassembly and assembly component rotates in reverse, it withdraws from the four arc-shaped limiting strips 22 inside the four fixed connection blocks 23 to release the limit, so as to quickly complete the disassembly; making the disassembly and assembly of the alloy grinding disc 3 at the head of this anti-edge-collapse type internal cooling drill bit very convenient. When the alloy grinding disc 3 is damaged, it is beneficial for the operator to replace it, thereby reducing the labor amount of the operator and improving the work efficiency.

[0021] The quick-disassembly and assembly component includes a driving motor 10, which is fixedly installed on one inner wall of the installation groove 9. The output end of the driving motor 10 is fixedly installed with a first bevel gear 11. The lower part of the surface of the first bevel gear 11 is meshed and connected with a second bevel gear 12. The bottom of the second bevel gear 12 is fixedly installed with a shaft rod 13. A shaft sleeve 14 is rotatably installed on the surface of the shaft rod 13. The shaft sleeve 14 is fixedly installed between the connection groove 5 and the installation groove 9. The bottom of the shaft rod 13 extends into the connection groove 5 and is fixedly installed with a first gear 15. A first shaft seat 16 is rotatably installed at the bottom of the first gear 15. The bottom of the first shaft seat 16 is fixedly installed with an L-shaped frame 17. The top of the L-shaped frame 17 is fixedly connected with one side of the inner top of the connection groove 5. One side of the first gear 15 is meshed and connected with a second gear 18. The middle of the second gear 18 is fixedly installed with a rotating rod 19. The top of the rotating rod 19 is rotatably installed with a second shaft seat 20. The top of the second shaft seat 20 is fixedly connected with the inner top of the connection groove 5. A cross-shaped connection frame 21 is fixedly installed at the bottom of the rotating rod 19. Four arc-shaped limiting inserts 22 are fixedly installed at the four ends of the cross-shaped connection frame 21. The four arc-shaped limiting inserts 22 are matched with four arc-shaped limiting slots 24.

[0022] When the operator starts the driving motor 10 to rotate forward, the driving motor 10 drives the first bevel gear 11 to rotate when rotating forward. When the first bevel gear 11 rotates, it drives the shaft rod 13 to rotate along the inside of the shaft sleeve 14 through the second bevel gear 12. When the shaft rod 13 rotates, it drives the first gear 15 to rotate along the first shaft seat 16 on the L-shaped frame 17. When the first gear 15 rotates, it drives the rotating rod 19 to rotate along the second shaft seat 20 through the second gear 18. When the rotating rod 19 rotates, it drives the four arc-shaped limiting inserts 22 to rotate through the cross-shaped connection frame 21. When the four arc-shaped limiting inserts 22 rotate, they are inserted into the four arc-shaped limiting slots 24 inside the four fixed connection blocks 23 for limiting, so as to complete the installation quickly. When disassembling, the operator starts the driving motor 10 to rotate in reverse. When the driving motor 10 rotates in reverse, it will drive the four arc-shaped limiting inserts 22 to rotate in reverse through the cross-shaped connection frame 21, so that the four arc-shaped limiting inserts 22 withdraw from the four arc-shaped limiting inserts 22 inside the four fixed connection blocks 23 to release the limit, so as to complete the disassembly quickly.

Claims

1. A chipping-resistant internally-cooled drill bit, comprising a chipping-resistant internally-cooled drill bit body (1), characterized in that: A connector (2) is fixedly mounted on the bottom of the anti-breakage blade internally cooled drill bit body (1), a connector groove (5) is provided inside the connector (2), a connector tube (6) is provided inside the connector groove (5), four limiting grooves (7) are provided in an annular manner and at equal distances on the inner wall of the connector groove (5), four limiting protrusions (8) are fixedly mounted in an annular manner and at equal distances on the surface of the connector (2), the four limiting protrusions (8) are mounted inside the four limiting grooves (7), an alloy grinding disc (3) is fixedly mounted on the bottom of the connector tube (6), a plurality of grinding blades (4) are fixedly mounted on the bottom of the alloy grinding disc (3), an installation groove (9) is provided on the upper part of the interior of the connector (2), a quick disassembly assembly is provided between the installation groove (9) and the interior of the connector groove (5), four fixed connection blocks (23) are fixedly mounted in an annular manner and at equal distances on the inner wall of the connector tube (6), and arc-shaped limiting slots (24) are provided inside the four fixed connection blocks (23).

2. The chipping-resistant internally-cooled drill bit according to claim 1, characterized in that: The quick disassembly assembly comprises a drive motor (10), the drive motor (10) is fixedly mounted on an inner wall of one side of the mounting groove (9), a first bevel gear (11) is fixedly mounted on the output end of the drive motor (10), a second bevel gear (12) is meshingly connected to the lower part of the surface of the first bevel gear (11), a shaft rod (13) is fixedly mounted on the bottom of the second bevel gear (12), a shaft sleeve (14) is rotatably mounted on the surface of the shaft rod (13), the shaft sleeve (14) is fixedly mounted between the connecting groove (5) and the mounting groove (9), and the bottom of the shaft rod (13) extends to the inside of the connecting groove (5) and is fixedly mounted with the first gear (15).

3. The chipping-resistant internally-cooled drill bit according to claim 2, characterized in that: A first shaft seat (16) is rotatably mounted on the bottom of the first gear (15), an L-shaped frame (17) is fixedly mounted on the bottom of the first shaft seat (16), the top of the L-shaped frame (17) is fixedly connected to one side of the top of the inside of the connecting groove (5), a second gear (18) is meshingly connected to one side of the first gear (15), a rotating rod (19) is fixedly mounted on the middle of the second gear (18), a second shaft seat (20) is rotatably mounted on the top of the rotating rod (19), and the top of the second shaft seat (20) is fixedly connected to the top of the inside of the connecting groove (5).

4. The chipping-resistant internally-cooled drill bit according to claim 3, characterized in that: A cross connecting frame (21) is fixedly mounted on the bottom of the rotating rod (19), and arc-shaped limiting inserts (22) are fixedly mounted on the four ends of the cross connecting frame (21), and the four arc-shaped limiting inserts (22) match the four arc-shaped limiting slots (24).

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