High-temperature-resistant hard alloy machining ball-end milling cutter

Abstract

The utility model relates to the technical field of ball-end milling cutters, and discloses a high-temperature-resistant hard alloy processing ball-end milling cutter which comprises a cutter bit body, a connecting column and a cooling pipe, a clamping piece is fixedly connected to the middle of the lower surface of the cutter bit body, and a plurality of threaded holes are formed in the outer wall of the lower end of the clamping piece. A clamping groove is formed in the middle of the upper surface of the connecting column, a plurality of first connecting holes are formed in the middle of the outer wall of the connecting column, and the outer wall of the clamping piece is tightly attached to the inner wall of the clamping groove. In the utility model, the firm connection of the cutter head body and the cutter body is ensured through the fixing mode of the clamping piece, the connecting column and the screw, the modularized design ensures that the cutter head body, the fixing piece, the cutter body and other parts can be independently replaced, and meanwhile, the cutter head body made of the hard alloy material endows the milling cutter with stable cutting performance in a high-temperature environment; and the cooling pipe can be used for effectively conveying cooling liquid to a cutting area, so that the cutting temperature is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ball end milling cutters, in particular to a high-temperature resistant hard alloy processing ball end milling cutter. Background Art

[0002] A ball-end milling cutter is a commonly used CNC milling tool with a spherical cutter head. It is suitable for processing three-dimensional surfaces, complex shapes, and concave-convex molds. The ball-end milling cutter can maintain contact between the cutter head and the workpiece surface during the processing, effectively avoiding damage to the workpiece during the cutting process. At the same time, it has good cutting performance and high processing accuracy. Due to its unique cutter head design, ball-end milling cutters are widely used in mold manufacturing, aerospace, automotive parts and other fields.

[0003] When traditional ball-end milling cutters are processed for a long time, they will generate heat due to friction, causing the tool temperature to continue to rise. High temperature will accelerate the wear of the tool, especially the cutting edge of the tool. Wear will lead to a decrease in processing accuracy and deterioration of surface quality. High temperature may also cause thermal deformation of the workpiece, affecting the final processing accuracy. In addition, the design of traditional ball-end milling cutters is usually integrated. If the cutter head is worn or damaged, it is usually necessary to replace the entire tool instead of just the cutter head, which may increase maintenance costs.

[0004] Therefore, those skilled in the art provide a high-temperature resistant cemented carbide ball end milling cutter to solve the problems raised in the above background technology. Utility Model Content

[0005] The purpose of the present utility model is to solve the shortcomings existing in the prior art, and a high-temperature resistant carbide ball-end milling cutter is proposed. The fixing method of the clamping parts, connecting columns and screws ensures the firm connection between the cutter head body and the cutter body. The clever use of the sealing ring prevents the leakage of the coolant. In addition, the modular design allows the cutter head body, fixing parts, cutter body and other components to be replaced separately, which greatly reduces the maintenance cost. At the same time, the cutter head body made of carbide material gives the milling cutter stable cutting performance in high temperature environment, so that it can easily cope with difficult-to-process materials such as high-temperature alloys. The through-hole design of the cooling pipe effectively delivers coolant to the cutting area, reduces the cutting temperature, reduces tool wear, extends the tool life, and significantly improves the processing quality of the workpiece.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A high-temperature resistant carbide ball end milling cutter comprises a cutter head body, a connecting column, and a cooling tube. A clamping piece is fixedly connected to the middle portion of the lower surface of the cutter head body. The outer wall of the lower end of the clamping piece is provided with a plurality of threaded holes. A clamping groove is provided in the middle portion of the upper surface of the connecting column. A plurality of first connecting holes are provided in the middle portion of the outer wall of the connecting column. The outer wall of the clamping piece is tightly fitted with the inner wall of the clamping groove. The threaded holes and the first connecting holes are fixed to each other by screws.

[0008] Through the above technical solution, the connection strength between the cutter head body and the cutter body is ensured by fixing the cutter head body with the clamping parts, the connecting column and the screws, and the stability and durability of the overall structure are improved.

[0009] Furthermore, a fixing piece is fixedly connected to the lower surface of the connecting column, a sealing groove is provided on the lower surface of the fixing piece, a blade body is provided at the lower end of the fixing piece, a sealing ring is fixedly connected to the upper surface of the blade body, the outer wall of the sealing ring is tightly fitted with the inner wall of the sealing groove, a plurality of second connecting holes are provided on the outer wall of the fixing piece and the upper surface of the blade body, and the fixing piece and the second connecting holes of the blade body are fixed by means of fixing bolts and fixing nuts;

[0010] Through the above technical solution, the use of the sealing ring ensures the sealing between the fixing part and the cutter body, prevents the leakage of coolant, and ensures the cleanliness and safety of the processing environment.

[0011] Furthermore, a mounting piece is fixedly connected to the lower end of the blade body;

[0012] Through the above technical solution, the mounting piece is used to mount the milling cutter on the tool holder or tool seat of the machine tool.

[0013] Furthermore, the lower end of the cooling pipe is connected to the inner wall of the middle part of the lower end of the mounting member, and the upper end of the cooling pipe passes through the middle part of the cutter body, the fixing member, the connecting column and the clamping member to the upper end of the cutter head body;

[0014] Through the above technical solution, a cooling pipe runs through the entire milling cutter structure, and is connected from the inner wall in the middle of the lower end of the mounting part to the upper end of the cutter head body, which is used to transport coolant during the processing process to help reduce the temperature of the cutting area.

[0015] Furthermore, the upper surface of the connecting column is tightly fitted with the lower surface of the cutter head body;

[0016] Through the above technical solution, the tightly fitting contact surface can ensure that there is no gap between the cutter head body and the connecting column, thereby improving the stability and reliability of the connection and reducing vibrations that may occur during high-speed cutting.

[0017] The utility model has the following beneficial effects:

[0018] 1. The utility model proposes a high-temperature resistant carbide ball end milling cutter, which ensures the connection strength between the cutter head body and the cutter body through the fixing method of clamping parts, connecting columns and screws, thereby improving the stability and durability of the overall structure. The use of sealing rings ensures the sealing between the fixing parts and the cutter body to prevent coolant leakage. In addition, the structured design allows the cutter head body, fixing parts, cutter body and other components to be replaced separately, reducing maintenance costs and improving production efficiency.

[0019] 2. The utility model proposes a high-temperature resistant carbide ball-end milling cutter. Since the cutter head body is made of carbide material, the milling cutter can maintain stable cutting performance in a high-temperature environment and is suitable for processing difficult-to-process materials such as high-temperature alloys. The design of the cooling pipe runs through the entire milling cutter structure, which can effectively transport the coolant to the cutting area, reduce the cutting temperature, reduce tool wear, extend the tool life, and improve the processing quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an axonometric view of a high-temperature resistant hard alloy ball end milling cutter proposed in the present invention;

[0021] Figure 2 This is an exploded view of a high-temperature resistant hard alloy ball end milling cutter proposed in the present invention;

[0022] Figure 3 This is a partial exploded view of a high-temperature resistant hard alloy ball end milling cutter proposed in the present invention;

[0023] Figure 4 This is a partial structural axonometric drawing of a high-temperature resistant hard alloy ball end milling cutter proposed in the present invention;

[0024] Figure 5 This is a schematic diagram of the partial structure of an axonometric diagram of a high-temperature resistant hard alloy ball end milling cutter proposed by the present invention.

[0025] Legend:

[0026] 1. Cutting head body; 101. Snap-on fitting; 102. Threaded hole; 2. Connecting column; 201. Slot; 202. First connecting hole; 3. Fixing piece; 301. Second connecting hole; 302. Sealing groove; 4. Cutting head body; 401. Sealing ring; 5. Mounting piece; 6. Cooling pipe. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, not all of the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1 、 Figure 2 and Figure 3 , a specific implementation method provided by the utility model: a high-temperature resistant cemented carbide processing ball head milling cutter, including a cutter head body 1, a connecting column 2 and a cooling pipe 6, a clamping piece 101 is fixedly connected to the middle of the lower surface of the cutter head body 1, and a plurality of threaded holes 102 are opened on the outer wall of the lower end of the clamping piece 101, a card groove 201 is opened in the middle of the upper surface of the connecting column 2, and a plurality of first connecting holes 202 are opened in the middle of the outer wall of the connecting column 2, the outer wall of the clamping piece 101 is tightly fitted with the inner wall of the card groove 201, and the threaded hole 102 and the first connecting hole 202 are fixed to each other by screws, and the fixing method of the clamping piece 101, the connecting column 2 and the screws ensures the connection strength between the cutter head body 1 and the cutter body 4, and improves the stability and durability of the overall structure.

[0029] Reference Figure 4 and Figure 5 The lower surface of the connecting column 2 is fixedly connected to a fixing part 3, and a sealing groove 302 is provided on the lower surface of the fixing part 3. A knife body 4 is provided at the lower end of the fixing part 3, and a sealing ring 401 is fixedly connected to the upper surface of the knife body 4. The outer wall of the sealing ring 401 fits tightly with the inner wall of the sealing groove 302. A plurality of second connecting holes 301 are provided on the outer wall of the fixing part 3 and the upper surface of the knife body 4. The second connecting holes 301 of the fixing part 3 and the knife body 4 are fixed by fixing bolts and fixing nuts. The use of the sealing ring 401 ensures the sealing between the fixing part 3 and the knife body 4, prevents leakage of coolant, and ensures the cleanliness and safety of the processing environment.

[0030] Reference Figure 1 and Figure 2The lower end of the cutter body 4 is fixedly connected to a mounting part 5, which is used to mount the milling cutter to the tool handle or tool seat of the machine tool. The lower end of the cooling pipe 6 is connected to the inner wall in the middle of the lower end of the mounting part 5. The upper end of the cooling pipe 6 passes through the cutter body 4, the fixing part 3, the connecting column 2 and the middle of the clamping part 101 to the upper end of the cutter head body 1. The cooling pipe 6 runs through the entire milling cutter structure and is connected to the upper end of the cutter head body 1 from the inner wall in the middle of the lower end of the mounting part 5. It is used to transport coolant during processing to help reduce the temperature of the cutting area. The upper surface of the connecting column 2 is tightly fitted with the lower surface of the cutter head body 1. The tightly fitted contact surface can ensure that there is no gap between the cutter head body 1 and the connecting column 2, thereby improving the stability and reliability of the connection and reducing the vibration that may occur during high-speed cutting.

[0031] Working principle: The milling cutter ensures the connection strength between the cutter head body 1 and the cutter body 4 through the fixing method of the clamping part 101, the connecting column 2 and the screw, thereby improving the stability and durability of the overall structure. During the cutting process, the cutter head body 1, which is made of high-temperature resistant cemented carbide, is responsible for performing cutting operations in a high-temperature environment and can stably process difficult-to-process materials such as high-temperature alloys. At the same time, the use of the sealing ring 401 ensures the sealing between the fixing part 3 and the cutter body 4, prevents coolant leakage, and ensures the cleanliness and safety of the processing environment. The design of the cooling pipe 6 runs through the entire milling cutter structure, and is connected from the inner wall of the middle part of the lower end of the mounting part 5 to the upper end of the cutter head body 1, effectively transporting the coolant to the cutting area, reducing the cutting temperature, reducing tool wear, extending the tool life, and improving the processing quality of the workpiece. In addition, the structured design allows the cutter head body 1, fixing part 3, cutter body 4 and other components to be replaced separately, reducing maintenance costs and improving production efficiency.

[0032] Finally, it should be noted that the above is only a preferred specific implementation method of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned specific implementation methods, those skilled in the art can still modify the technical solutions described in the aforementioned specific implementation methods or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-temperature resistant hard alloy ball end milling cutter, comprising a cutter head body (1), a connecting column (2) and a cooling pipe (6), characterized in that: A clamping member (101) is fixedly connected to the middle of the lower surface of the cutter head body (1), and a plurality of threaded holes (102) are provided on the outer wall of the lower end of the clamping member (101). A clamping groove (201) is provided in the middle of the upper surface of the connecting column (2), and a plurality of first connecting holes (202) are provided in the middle of the outer wall of the connecting column (2). The outer wall of the clamping member (101) is tightly fitted with the inner wall of the clamping groove (201), and the threaded holes (102) and the first connecting holes (202) are fixed to each other by screws.

2. The high-temperature resistant hard alloy ball end milling cutter according to claim 1, characterized in that: The lower surface of the connecting column (2) is fixedly connected to a fixing member (3), the lower surface of the fixing member (3) is provided with a sealing groove (302), the lower end of the fixing member (3) is provided with a knife body (4), the upper surface of the knife body (4) is fixedly connected to a sealing ring (401), the outer wall of the sealing ring (401) is tightly fitted with the inner wall of the sealing groove (302), the outer wall of the fixing member (3) and the upper surface of the knife body (4) are both provided with a plurality of second connecting holes (301), and the fixing member (3) and the second connecting holes (301) of the knife body (4) are both fixed by fixing bolts and fixing nuts.

3. The high temperature resistant hard alloy ball end milling cutter according to claim 2, characterized in that: The lower end of the blade body (4) is fixedly connected with a mounting member (5).

4. The high temperature resistant hard alloy ball end milling cutter according to claim 1, characterized in that: The lower end of the cooling pipe (6) is connected to the inner wall of the middle part of the lower end of the mounting member (5), and the upper end of the cooling pipe (6) passes through the middle part of the cutter body (4), the fixing member (3), the connecting column (2) and the clamping member (101) to the upper end of the cutter head body (1).

5. The high temperature resistant hard alloy ball end milling cutter according to claim 1, characterized in that: The upper surface of the connecting column (2) is tightly fitted with the lower surface of the cutter head body (1).

Images