Alloy coating drill with convenient clamping mechanism

Abstract

The utility model belongs to the technical field of alloy coating drills, particularly relates to an alloy coating drill provided with a convenient clamping mechanism, and aims to solve the problems that when an existing drill is used, the drill is inconvenient to clamp, and the drill is troublesome to assemble and not convenient to use, the following scheme is provided: the alloy coating drill comprises a coating drill body, a drill bit fixing handle is connected to one end of the coating drill body, a clamping assembly used for assisting in clamping a drill bit is arranged in the drill bit fixing handle, and a cooling assembly used for cooling the drill bit is arranged at one end of the drill bit fixing handle. The clamping assembly comprises a mounting groove, and the mounting groove is formed in the drill bit fixing handle. Under the action of elasticity of the spring, the limiting pipe can be pushed to reset, the limiting block on the fixing rod can play a limiting role, the limiting pipe extends out and is inserted into the clamping hole in the output end, and then subsequent clamping and fixing of the drill bit are facilitated.

Description

Technical Field

[0001] This utility model relates to an alloy-coated drill, specifically an alloy-coated drill with a convenient clamping mechanism, belonging to the field of coating drill technology. Background Technology

[0002] Alloy-coated drills mainly consist of a drill body and an alloy coating. The drill body is typically made of high-strength, high-hardness materials to ensure its stability and durability during use. The alloy coating covers the cutting parts of the drill body; this coating is usually made of cemented carbide (such as tungsten carbide) or other high-performance alloy materials to improve the drill's cutting performance and wear resistance. Alloy-coated drills are commonly used in applications requiring high-precision and high-efficiency drilling operations. For example, in aerospace, automotive manufacturing, and electronics industries, these drills are often used to machine various difficult-to-machine materials.

[0003] In existing technologies, such as the high-strength coated alloy drill bit disclosed in publication number CN222221228U, a diversion pipe is included, which is fixedly installed at the bottom of the liquid inlet pipe. The liquid supply assembly has two cooling methods for the drill bit body: one is internal cooling, which has excellent heat dissipation and cooling effect and no cooling dead zones; the other is external cooling, which automatically triggers the external cooling mode when there is a probability of blockage in the hole causing poor coolant drainage, thus avoiding the phenomenon of blockage in the hole reducing heat dissipation and cooling efficiency.

[0004] Although the above-mentioned technical solution delivers coolant within the drill bit body, allowing it to reach the bottom of the hole and ultimately exit through the cutting groove, resulting in excellent heat dissipation and cooling without any cooling dead zones, it is inconvenient to clamp the drill bit during use, and the drill bit is cumbersome to assemble, making it unsuitable for use. Therefore, an alloy-coated drill bit with a convenient clamping mechanism is provided to overcome the above-mentioned defects. Utility Model Content

[0005] This utility model addresses the problems mentioned above, such as the inconvenience of clamping the drill bit during use and the cumbersome assembly of the drill bit, by providing an alloy-coated drill bit with a convenient clamping mechanism.

[0006] The present invention achieves the above objectives through the following technical solution: an alloy coated drill with a convenient clamping mechanism, comprising a coated drill body, one end of which is connected to a drill bit fixing shank, the drill bit fixing shank having a clamping component for auxiliary clamping of the drill bit inside, and a cooling component for cooling the drill bit at one end of the drill bit fixing shank.

[0007] The clamping assembly includes a mounting groove, which is formed inside the drill bit fixing shank. A movable rod is installed inside the mounting groove. A connector is fixed to the lower end of the movable rod. A limit tube is fixed to the end of the connector. A limit block is slidably connected inside the limit tube.

[0008] As a further embodiment of this utility model: the upper surface of the limiting block is abutted and connected to a spring that abuts and connects to the inner wall of the limiting tube, and the lower surface of the limiting block is fixedly connected to a fixing rod that is fixedly connected to the inside of the drill bit fixing handle.

[0009] As a further embodiment of this utility model: the cooling assembly includes a water inlet pipe, which is installed at one end of the drill bit fixing shank, and the end of the water inlet pipe is connected to a flow cavity opened inside the drill bit fixing shank.

[0010] As a further embodiment of this utility model: the other end of the drill bit fixing shank is connected to a connecting block that communicates with the flow cavity, and the end of the coated drill body has two water spray holes that communicate with the connecting block.

[0011] As a further improvement of this utility model: the outer surface of the water inlet pipe is fitted with a fixed bearing embedded inside the drill bit fixing shank.

[0012] As a further improvement of this utility model, the end of the water inlet pipe is fixed with a limiting disc that is rotatably connected to the inner wall of the drill bit fixing handle.

[0013] As a further embodiment of this utility model: the upper surface of the connecting block is fixed with a fixing hole, and a fixing bolt that is threadedly connected to the drill bit fixing shank is inserted into the fixing hole. The inner wall of the drill bit fixing shank is provided with a sealing ring that matches the connecting block.

[0014] The beneficial effects of this utility model are: under the action of the spring's own elasticity, it will push the limiting tube to reset, and the limiting block on the fixing rod can play a limiting role. At this time, the limiting tube extends outward and is inserted into the card hole inside the output end, which facilitates the subsequent clamping and fixing of the drill bit. Cooling water can enter the flow chamber and spray out from the water spray hole through the connecting block, thereby achieving the cooling effect on the coating drill body. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a cross-sectional structural diagram of the limiting tube of this utility model.

[0019] In the diagram: 1. Coated drill body; 2. Drill bit retainer; 3. Mounting groove; 31. Movable rod; 32. Connector; 33. Fixed rod; 34. Limiting block; 35. Spring; 36. Limiting tube; 4. Water inlet pipe; 41. Flow chamber; 42. Connecting block; 43. Water spray hole; 5. Fixed bearing; 6. Limiting plate; 7. Fixing hole; 8. Fixing bolt; 9. Sealing ring. 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. Example 1

[0021] like Figures 1 to 4 As shown, an alloy coated drill with a convenient clamping mechanism includes a coated drill body 1, one end of which is connected to a drill bit fixing shank 2. The drill bit fixing shank 2 has a clamping component for auxiliary clamping of the drill bit inside, and a cooling component for cooling the drill bit at one end.

[0022] The clamping assembly includes a mounting groove 3, which is located inside the drill bit retaining shank 2. A movable rod 31 is installed inside the mounting groove 3. A connector 32 is fixed to the lower end of the movable rod 31, and a limiting tube 36 is fixed to the end of the connector 32. A limiting block 34 is slidably connected inside the limiting tube 36. A spring 35, which abuts against the inner wall of the limiting tube 36, is connected to the upper surface of the limiting block 34. A fixing rod 33, which is fixedly connected to the inside of the drill bit retaining shank 2, is fixed to the lower surface of the limiting block 34. When the drill bit retaining shank 2 is aligned with the output end of the drive device, both the movable rod 31 and the limiting tube 36 are protruding. First, manually press the movable rod 31 to move the connector 32 within the mounting groove 3. This causes the limiting tube 36 to move synchronously. At this time, both the movable rod 31 and the limiting tube 36 retract into the drill bit fixing handle 2, and the limiting tube 36 pushes the internal spring 35 to move and compress. Then, the drill bit fixing handle 2 is aligned with the output end of the equipment, and the limiting tube 36 on the drill bit fixing handle 2 is aligned with the bayonet at the output end. Then, the drill bit fixing handle 2 is inserted. After the drill bit fixing handle 2 is inserted, the movable rod 31 is released. Under the elasticity of the spring 35, the limiting tube 36 will be pushed to reset, and the limiting block 34 on the fixing rod 33 can play a limiting role. At this time, the limiting tube 36 extends out and is inserted into the bayonet hole inside the output end, which facilitates the subsequent clamping and fixing of the drill bit. Example 2

[0023] In addition to all the technical features included in Embodiment 1, this embodiment also includes: a cooling assembly comprising a water inlet pipe 4, the water inlet pipe 4 being installed at one end of the drill bit fixing shank 2, the end of the water inlet pipe 4 being connected to a flow cavity 41 opened inside the drill bit fixing shank 2, the other end of the drill bit fixing shank 2 being inserted and connected to a connecting block 42 communicating with the flow cavity 41, the end of the coated drill body 1 having two water spray holes 43 communicating with the connecting block 42, the outer surface of the water inlet pipe 4 being fitted with a fixing bearing 5 embedded inside the drill bit fixing shank 2, the end of the water inlet pipe 4 being fixed with a limiting disc 6 rotatably connected to the inner wall of the drill bit fixing shank 2, and the upper surface of the connecting block 42 being fixed with a fixing hole 7. The fixing hole 7 is internally connected to a fixing bolt 8 that is threadedly connected to the drill bit fixing shank 2. The inner wall of the drill bit fixing shank 2 is provided with a sealing ring 9 that matches the connecting block 42. The water inlet pipe 4 is connected to an external water source pipe, allowing cooling water to enter the flow chamber 41 and be sprayed out from the spray hole 43 through the connecting block 42, thereby achieving the cooling effect on the coating drill body 1. With the cooperation of the fixing bearing 5 and the limiting plate 6, it can play a limiting role. The sealing ring 9 can play a sealing role. Unscrewing the fixing bolt 8 separates the fixing bolt 8 from the fixing hole 7 on the connecting block 42, thereby allowing the coating drill body 1 to be disassembled and replaced separately for easy use.

[0024] Working Principle: Before using the alloy-coated drill bit equipped with a convenient clamping mechanism, first connect the drill bit to the output end of the drive device. Align the drill bit retaining shank 2 with the output end of the drive device. At this time, both the movable rod 31 and the limiting tube 36 are in a protruding state. First, manually press the movable rod 31 to make the connecting piece 32 move in the mounting groove 3, thereby driving the limiting tube 36 to move synchronously. At this time, both the movable rod 31 and the limiting tube 36 retract into the drill bit retaining shank 2, and the limiting tube 36 pushes the internal spring 35 to move and compress. Then, align the drill bit retaining shank 2 with the output end of the device, and align the limiting tube 36 on the drill bit retaining shank 2 with the bayonet at the output end. Then, insert the drill bit retaining shank 2. After inserting the drill bit retaining shank 2, release the movable rod 31. Under the action of the spring 35's own elasticity, the limiting tube 36 will be pushed. When the tube 36 is reset, the limiting block 34 on the fixing rod 33 can play a limiting role. At this time, the limiting tube 36 extends outward and is inserted into the card hole inside the output end, which facilitates the subsequent clamping and fixing of the drill bit. The equipment drives the drill bit fixing handle 2 to rotate, which in turn drives the coating drill body 1 to drill the workpiece. The water inlet pipe 4 is connected to the external water source pipe, so that the cooling water can enter the flow chamber 41 and spray out from the spray hole 43 through the connecting block 42, thereby achieving the cooling effect of the coating drill body 1. With the cooperation of the fixed bearing 5 and the limiting plate 6, it can play a limiting role. The sealing ring 9 can play a sealing role. Unscrew the fixing bolt 8 to separate the fixing bolt 8 from the fixing hole 7 on the connecting block 42, so that the coating drill body 1 can be disassembled and replaced separately for easy use.

[0025] 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.

[0026] 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 a convenient clamping mechanism, comprising a coated drill body (1), characterized in that: One end of the coated drill body (1) is connected to a drill bit fixing shank (2). The drill bit fixing shank (2) is provided with a clamping component for auxiliary clamping of the drill bit, and one end of the drill bit fixing shank (2) is provided with a cooling component for cooling the drill bit. The clamping assembly includes a mounting groove (3) which is opened inside the drill bit fixing shank (2). A movable rod (31) is installed inside the mounting groove (3). A connector (32) is fixed to the lower end of the movable rod (31). A limit tube (36) is fixed to the end of the connector (32). A limit block (34) is slidably connected inside the limit tube (36).

2. The alloy-coated drill with a convenient clamping mechanism according to claim 1, characterized in that: The upper surface of the limiting block (34) is connected to a spring (35) that abuts against the inner wall of the limiting tube (36), and the lower surface of the limiting block (34) is fixed with a fixing rod (33) that is fixedly connected to the inside of the drill bit fixing handle (2).

3. The alloy-coated drill with a convenient clamping mechanism according to claim 1, characterized in that: The cooling assembly includes a water inlet pipe (4), which is installed at one end of the drill bit retainer (2), and the end of the water inlet pipe (4) is connected to a flow cavity (41) opened inside the drill bit retainer (2).

4. The alloy-coated drill with a convenient clamping mechanism according to claim 3, characterized in that: The other end of the drill bit fixing handle (2) is connected to a connecting block (42) that communicates with the flow cavity (41), and the end of the coated drill body (1) has two water spray holes (43) that communicate with the connecting block (42).

5. An alloy-coated drill with a convenient clamping mechanism according to claim 3, characterized in that: The outer surface of the water inlet pipe (4) is fitted with a fixed bearing (5) embedded inside the drill bit fixing shank (2).

6. An alloy-coated drill with a convenient clamping mechanism according to claim 5, characterized in that: The end of the water inlet pipe (4) is fixed with a limiting disc (6) that is rotatably connected to the inner wall of the drill bit fixing handle (2).

7. An alloy-coated drill with a convenient clamping mechanism according to claim 4, characterized in that: The upper surface of the connecting block (42) is fixed with a fixing hole (7), and a fixing bolt (8) that is threadedly connected to the drill bit fixing shank (2) is inserted into the fixing hole (7). The inner wall of the drill bit fixing shank (2) is provided with a sealing ring (9) that matches the connecting block (42).

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