A composite coated round nose knife with a wear resistant sharpened edge

Abstract

The utility model belongs to the technical field of round nose knife, especially involve a kind of composite coating round nose knife with wear-resistant reinforced cutting edge, the majority of round nose knife of existing is integrated, when cutter head is damaged, the whole round nose knife needs to be replaced, practicality is poorer, cannot the replacement problem of cutter head is alone, present and propose the following scheme, including round nose knife handle, the outer surface of round nose knife handle is equipped with several antiskid lines, one end of round nose knife handle is equipped with quick release mechanism for the disassembly of round nose knife, the other end of round nose knife handle is equipped with heat dissipation mechanism for the heat dissipation of round nose knife. The utility model is by the fixed bolt on fixed shell is screwed down, makes fixed bolt and the spacing hole on round nose knife handle separate, under the cooperation of connecting groove and connecting rod, round nose knife body can be unloaded from round nose knife handle, and fixed part and fixed groove play the role of limiting, and then the round nose knife body can be replaced alone.

Description

Technical Field

[0001] This utility model relates to a composite coated round nose knife, specifically a composite coated round nose knife with a wear-resistant and reinforced cutting edge, belonging to the field of round nose knife technology. Background Technology

[0002] A composite-coated round nose cutter is a type of machine tool that incorporates advanced coating technology and is primarily used in metal cutting. A composite-coated round nose cutter typically consists of a cutter head, a mounting base, an adjusting thread, a mounting screw, a locating block, an adjusting sleeve, an inspection port, a cutter shank, a vibration damping pad, a mounting screw hole, a locating port, and a cutting edge. The cutting edge, located at the bottom of the cutter head, is the main part used for cutting. Composite-coated round nose cutters are widely used in hardware processing, CNC machining centers, and other fields, and are particularly suitable for machining difficult-to-machine materials such as hardened steel (hardness higher than HRC50) and high-alloy materials.

[0003] In the prior art, such as the composite coated round nose end mill disclosed in CN217492819U, a cutter head body, a cutter head holder, a fixing rod, and a mounting cylinder are included. The cutter head holder is fixedly connected to the top of the cutter head body, and the mounting cylinder is fixedly connected to the bottom of the fixing rod. An adjusting plate is slidably connected to the center of the mounting cylinder, and adjusting connecting blocks are fixedly connected to both sides of the adjusting plate. Adjusting grooves corresponding to the adjusting connecting blocks are opened on both sides of the mounting cylinder. By opening the cutter head mounting groove on the limiting rod, it is easy to fix the cutter head holder and the cutter head connecting cylinder together, thereby facilitating the installation and removal of the cutter head body; and the elastic force of the return spring makes the connection between the cutter head holder and the cutter head connecting cylinder tighter, while also facilitating the quick sliding of the cutter head holder out of the cutter head connecting cylinder.

[0004] In the above technical solution, a cutting head mounting groove is opened in the limiting insert rod to facilitate the fixed connection between the cutting head seat and the cutting head connecting cylinder, thereby facilitating the installation and disassembly of the cutting head body. However, most round nose cutters are one-piece, and when the cutting head is damaged, the entire round nose cutter needs to be replaced, which is not very practical and cannot replace the cutting head separately. In view of this, a round nose cutter with a composite coating with wear-resistant and reinforced cutting edge is provided to overcome the above defects. Utility Model Content

[0005] This invention addresses the problem that most round nose cutters are one-piece designs, requiring the entire cutter to be replaced when the blade is damaged, resulting in poor practicality and the inability to replace the blade individually. It provides a round nose cutter with a composite coating featuring a wear-resistant and reinforced cutting edge.

[0006] The present invention achieves the above objectives through the following technical solution: a composite coated round nose knife with wear-resistant and reinforced cutting edge, including a round nose knife handle, the outer surface of the round nose knife handle is provided with a number of anti-slip textures, one end of the round nose knife handle is provided with a quick-release mechanism for assembling and disassembling the round nose knife, and the other end of the round nose knife handle is provided with a heat dissipation mechanism for dissipating heat from the round nose knife.

[0007] The quick-release mechanism includes a round nose blade body, which is installed at one end of the round nose blade handle. A connecting groove is provided inside the round nose blade body, and two fixing members are fixed to the inner wall of the connecting groove. A connecting rod is connected to one side of each of the two fixing members, and a fixing groove is provided on the outer surface of the connecting rod for insertion and connection with the fixing members.

[0008] As a further improvement of this utility model: a fixing shell is fixed to the right side of the round nose blade body, and fixing bolts are installed on the outer wall of the fixing shell.

[0009] As a further improvement of this utility model, one end of the fixing bolt is inserted into a limiting hole opened on the round nose knife handle.

[0010] As a further improvement of this utility model: a sealing gasket is fixed on one side of the round nose knife handle, and the outer wall of the round nose knife body is provided with several cutting edges.

[0011] As a further improvement of this utility model: a chip removal groove is provided on one side of the cutting edge and the outer surface of the cutting edge is coated with a wear-resistant coating.

[0012] As a further embodiment of this utility model: the heat dissipation mechanism includes a water inlet pipe, which is installed at the other end of the round nose knife handle, and a fixed bearing embedded inside the round nose knife handle is sleeved on the outer surface of the water inlet pipe.

[0013] As a further embodiment of this utility model: a limiting plate is fixed at the end of the water inlet pipe, and a fixing ring that is fixedly connected to the round nose knife handle is rotatably connected to the outer surface of the limiting plate. A water spray hole that communicates with the round nose knife handle is opened inside the connecting rod.

[0014] The beneficial effects of this utility model are: by unscrewing the fixing bolts on the fixed shell, the fixing bolts and the limiting holes on the round nose cutter handle are separated, the fixing of the round nose cutter body is released, and with the cooperation of the connecting groove and the connecting rod, the round nose cutter body can be removed from the round nose cutter handle. The fixing parts and the fixing groove play a limiting role, thereby enabling the round nose cutter body to be replaced separately.

[0015] An external coolant delivery pump delivers coolant through a pipe to the inlet pipe, which then enters the round nose cutter shank and finally the spray nozzle. Because the connecting rod absorbs heat from the round nose cutter body, the coolant can indirectly dissipate heat from the round nose cutter body as it passes through the spray nozzle. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a three-dimensional structural diagram of the round nose knife handle of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the round nose blade of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the round nose knife handle of this utility model.

[0020] In the diagram: 1. Round nose handle; 2. Anti-slip texture; 3. Round nose cutter body; 31. Connecting groove; 32. Fixing component; 33. Connecting rod; 34. Fixing groove; 35. Fixing shell; 36. Fixing bolt; 37. Limiting hole; 4. Sealing gasket; 5. Cutting edge; 6. Chip removal groove; 7. Wear-resistant coating; 8. Water inlet pipe; 81. Fixed bearing; 82. Limiting plate; 83. Fixing ring; 9. Water spray hole. Detailed Implementation

[0021] 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

[0022] like Figures 1 to 4 As shown, a composite coated round nose knife with wear-resistant and reinforced cutting edge includes a round nose knife handle 1. The outer surface of the round nose knife handle 1 is provided with several anti-slip textures 2. One end of the round nose knife handle 1 is provided with a quick-release mechanism for assembling and disassembling the round nose knife, and the other end of the round nose knife handle 1 is provided with a heat dissipation mechanism for dissipating heat from the round nose knife.

[0023] The quick-release mechanism includes a round nose cutter body 3, which is installed at one end of a round nose cutter handle 1. A connecting groove 31 is formed inside the round nose cutter body 3. Two fixing members 32 are fixed to the inner wall of the connecting groove 31. A connecting rod 33 is connected to one side of each fixing member 32. A fixing groove 34 is formed on the outer surface of the connecting rod 33 to connect with the fixing member 32. A fixing shell 35 is fixed to the right side of the round nose cutter body 3. A fixing bolt 36 is installed on the outer wall of the fixing shell 35. One end of the fixing bolt 36 is inserted into a limiting hole 37 formed on the round nose cutter handle 1. A sealing gasket 4 is fixed to one side of the round nose cutter handle 1. Several cutting edges 5 are provided on the outer wall of the round nose cutter body 3 for use. Before using the composite-coated round nose cutter with wear-resistant and reinforced cutting edge, first connect the round nose cutter to the output end of the machine tool. When the cutter head needs to be replaced separately, the fixing bolt 36 on the fixing housing 35 can be unscrewed to separate the fixing bolt 36 from the limiting hole 37 on the round nose cutter shank 1, thereby releasing the fixation of the round nose cutter body 3. With the cooperation of the connecting groove 31 and the connecting rod 33, the round nose cutter body 3 can be removed from the round nose cutter shank 1. The fixing part 32 and the fixing groove 34 play a limiting role, thereby enabling the round nose cutter body 3 to be replaced separately. The sealing gasket 4 can seal the connection between the round nose cutter body 3 and the round nose cutter shank 1, improving practicality. Example 2

[0024] In addition to all the technical features in Embodiment 1, this embodiment also includes: a chip removal groove 6 formed on one side of the cutting edge 5 on the round nose cutter body 3; a wear-resistant coating 7 on the outer surface of the cutting edge 5; a heat dissipation mechanism including a water inlet pipe 8; the water inlet pipe 8 being installed at the other end of the round nose cutter shank 1; a fixed bearing 81 embedded inside the round nose cutter shank 1 being fitted on the outer surface of the water inlet pipe 8; a limiting plate 82 being fixed at the end of the water inlet pipe 8; a fixing ring 83 fixedly connected to the round nose cutter shank 1 being rotatably connected to the outer surface of the limiting plate 82; a water spray hole 9 communicating with the round nose cutter shank 1 being opened inside the connecting rod 33; fixing the round nose cutter shank 1 to the output shaft of the machine tool; and anti-slip texture 2 provided on the round nose cutter shank 1 to provide a certain anti-slip effect, thereby reducing the possibility of the round nose cutter shank 1 sliding. The water inlet pipe 8 is connected to an external coolant delivery pipe. During use, the machine tool is equipped with... The rotary nose tool holder 1 is driven to rotate, which in turn drives the rotary nose tool body 3 to rotate. The cutting edge 5 on the rotary nose tool body 3 cuts the workpiece, and the chip removal groove 6 can remove the waste chips generated during cutting. The wear-resistant coating 7 is a composite coating of titanium nitride and silicon. Through a deposition process, the nano-sized grains in the coating are tightly bonded to the substrate to form a stable and dense coating structure, which can effectively reduce friction and heat accumulation during the cutting process and reduce tool wear. At the same time, the external coolant delivery pump delivers coolant to the water inlet pipe 8 through the pipeline, and then into the rotary nose tool holder 1, and then into the water spray hole 9. Since the connecting rod 33 absorbs the heat of the rotary nose tool body 3, the coolant can indirectly dissipate heat from the rotary nose tool body 3 when passing through the water spray hole 9. The limiting plate 82 and the fixing ring 83, in cooperation with the fixed bearing 81, can play a limiting role.

[0025] Working Principle: Before using the composite-coated round nose cutter with wear-resistant and reinforced cutting edges, first connect the round nose cutter to the output end of the machine tool. Fix the round nose cutter shank 1 to the output shaft of the machine tool. The anti-slip texture 2 on the round nose cutter shank 1 provides a certain degree of anti-slip effect, thereby reducing the possibility of the round nose cutter shank 1 slipping. The water inlet pipe 8 is connected to the external coolant delivery pipe. During use, the machine tool drives the round nose cutter shank 1 to rotate, which in turn drives the round nose cutter body 3 to rotate. The cutting edge 5 on the round nose cutter body 3 cuts the workpiece, and the chip removal groove 6 can remove the waste chips generated during cutting. The wear-resistant coating 7 is a composite coating of titanium nitride and silicon. Through the deposition process, the nano-sized grains in the coating are tightly bonded to the substrate to form a stable and dense coating structure, which can effectively reduce friction and heat accumulation during the cutting process and reduce tool wear. At the same time, the external coolant... The delivery pump delivers coolant through a pipeline to the inlet pipe 8, which then enters the round nose cutter handle 1 and finally the spray nozzle 9. Because the connecting rod 33 absorbs heat from the round nose cutter body 3, the coolant indirectly dissipates heat as it passes through the spray nozzle 9. The limiting plate 82 and the fixing ring 83, in conjunction with the fixing bearing 81, provide a limiting function. When the cutter head needs to be replaced separately, the fixing bolt 36 on the fixing housing 35 can be unscrewed, separating it from the limiting hole 37 on the round nose cutter handle 1, thus releasing the fixation on the round nose cutter body 3. With the cooperation of the connecting groove 31 and the connecting rod 33, the round nose cutter body 3 can be removed from the round nose cutter handle 1. The fixing member 32 and the fixing groove 34 provide a limiting function, allowing for the separate replacement of the round nose cutter body 3. The sealing gasket 4 seals the connection between the round nose cutter body 3 and the round nose cutter handle 1, improving practicality.

[0026] 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.

[0027] 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. A round nose knife with a composite coating and a wear-resistant reinforced cutting edge, comprising a round nose handle (1), characterized in that: The outer surface of the round nose knife handle (1) is provided with several anti-slip textures (2), one end of the round nose knife handle (1) is provided with a quick-release mechanism for assembling and disassembling the round nose knife, and the other end of the round nose knife handle (1) is provided with a heat dissipation mechanism for cooling the round nose knife. The quick-release mechanism includes a round nose blade body (3), which is installed at one end of the round nose blade handle (1). The round nose blade body (3) has a connecting groove (31) inside. Two fasteners (32) are fixed to the inner wall of the connecting groove (31). A connecting rod (33) is connected to one side of each of the two fasteners (32). A fixing groove (34) is opened on the outer surface of the connecting rod (33) to be inserted and connected to the fastener (32).

2. A composite-coated round nose cutter with a wear-resistant and reinforced cutting edge according to claim 1, characterized in that: A fixing shell (35) is fixed to the right side of the round nose blade body (3), and a fixing bolt (36) is installed on the outer wall of the fixing shell (35).

3. A composite-coated round nose cutter with a wear-resistant and reinforced cutting edge according to claim 2, characterized in that: One end of the fixing bolt (36) is inserted into a limiting hole (37) opened on the round nose handle (1).

4. A composite coated round nose cutter with a wear-resistant and reinforced cutting edge according to claim 3, characterized in that: A sealing gasket (4) is fixed on one side of the round nose knife handle (1), and a number of cutting edges (5) are provided on the outer wall of the round nose knife body (3).

5. A composite-coated round nose cutter with a wear-resistant and reinforced cutting edge according to claim 4, characterized in that: The cutting edge (5) has a chip removal groove (6) on one side of the round nose cutter body (3), and the outer surface of the cutting edge (5) is coated with a wear-resistant coating (7).

6. A composite-coated round nose blade with a wear-resistant and reinforced cutting edge according to claim 1, characterized in that: The heat dissipation mechanism includes a water inlet pipe (8), which is installed at the other end of the round nose handle (1). The outer surface of the water inlet pipe (8) is fitted with a fixed bearing (81) embedded inside the round nose handle (1).

7. A composite coated round nose cutter with a wear-resistant and reinforced cutting edge according to claim 6, characterized in that: The end of the water inlet pipe (8) is fixed with a limiting plate (82), and the outer surface of the limiting plate (82) is rotatably connected with a fixing ring (83) that is fixedly connected to the round nose knife handle (1). The inside of the connecting rod (33) is provided with a water spray hole (9) that communicates with the round nose knife handle (1).

Images