A high-precision long-life micro PCD milling cutter

Abstract

The utility model discloses a high accuracy long -life miniature PCD milling cutter, including handle, the front end of handle is provided with the conical column, the front end of conical column is provided with the connecting column, the front end fixed mounting of connecting column has the tool bit, is provided with the main cutting edge of being able to to workpiece processing on the tool bit, the main cutting edge front and back are all provided with the auxiliary blade subassembly. This high accuracy long -life miniature PCD milling cutter, through the main cutting edge and the auxiliary blade design, make this cutter in processing, the main cutting edge in the processing of material, the main processing surface in the auxiliary blade carries out the auxiliary cutting, and the chip flute on the auxiliary blade can carry out the auxiliary chip removal, and cooperate the auxiliary processing surface, make this cutter can under the high -speed cutting condition, effectively reduce the tool wear, improve the processing surface quality, satisfy the machining demand of high accuracy, high performance of aerospace parts, avoid the problem of the manufacturing precision and consistency of cutter being poor due to the machining difficulty of PCD material being larger, increase the manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of PCD cutting tool technology, and in particular to a high-precision, long-life micro PCD end mill. Background Technology

[0002] In modern manufacturing, the development of metal processing technology plays a crucial role in driving industrial progress. As products continue to evolve towards higher precision, miniaturization, and higher performance, the performance requirements for metal processing cutting tools are becoming increasingly stringent. Solid PCD micro-end mills, as an advanced cutting tool, have demonstrated superior performance in metal processing and other fields. PCD (polycrystalline diamond) material possesses extremely high hardness, good wear resistance, a low coefficient of friction, and excellent thermal conductivity. These characteristics give PCD tools a significant advantage over traditional tools when machining non-ferrous metals, non-metallic materials, and difficult-to-machine materials.

[0003] However, despite the numerous advantages that integral PCD end mills demonstrate in practical applications, there are still some pressing issues to be addressed in PCD tool design, manufacturing processes, and cutting mechanisms. When traditional PCD tools are used to machine aerospace materials such as aluminum alloys and titanium alloys, the large cutting edge of traditional PCD tools results in lower wear resistance and cutting efficiency, failing to meet the high precision requirements of aerospace components. Furthermore, the traditional tool distribution method cannot achieve optimal cutting performance and machining quality. Additionally, the high machining difficulty of PCD materials leads to poor tool manufacturing precision and consistency, increasing manufacturing costs. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a high-precision, long-life micro PCD end mill with a special cutting edge distribution, which improves cutting performance and machining quality, and also increases manufacturing precision.

[0005] To solve the above-mentioned technical problems and achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution:

[0006] The technical solution of this utility model is: a high-precision, long-life micro PCD end mill, including a tool holder, a tapered column at the front end of the tool holder, a connecting column at the front end of the tapered column, a cutter head fixedly mounted at the front end of the connecting column, a main cutting edge capable of machining the workpiece on the cutter head, and auxiliary cutting edge components on both the front and back sides of the main cutting edge.

[0007] Furthermore, the auxiliary cutting edge assembly consists of a chip removal groove, a main machining surface, and an auxiliary machining surface, with the chip removal groove located on one side of the main cutting edge surface, the main machining surface located on the other side of the main cutting edge surface, and the auxiliary machining surface located on the surface of the main machining surface.

[0008] Furthermore, a mounting base is provided at the tail end of the tool holder.

[0009] Furthermore, the diameter of the front end of the tapered column is smaller than the diameter of the tail end of the tapered column, the diameter of the tail end of the tapered column is the same as the diameter of the tool holder, and the surface of the tapered column is designed to be smooth.

[0010] Furthermore, the diameter of the cutting head is 2mm.

[0011] Furthermore, the diameter of the handle is 4mm.

[0012] Furthermore, the handle is made of cemented carbide.

[0013] Furthermore, the material of the cutting head is PDC material.

[0014] Furthermore, the combined length of the handle, the tapered column, the connecting column, and the cutting head is 50 mm.

[0015] The beneficial technical effects of this utility model are as follows: Through the design of the main cutting edge and the auxiliary cutting edge, when the main cutting edge is machining the material, the main machining surface of the auxiliary cutting edge assists in cutting, and the chip removal groove on the auxiliary cutting edge can assist in chip removal. Together with the auxiliary machining surface, this allows the tool to effectively reduce tool wear and improve the surface quality under high-speed cutting conditions, meeting the high-precision and high-performance machining requirements of aerospace components. Furthermore, the design of the tiny cutting edge of the tool head, combined with the high-precision cutting capabilities of the main cutting edge and the auxiliary cutting edge, can achieve sub-micron level machining accuracy, ensuring the performance and reliability of electronic components. This achieves optimal cutting performance and machining quality, avoiding the problem of poor tool manufacturing precision and consistency and increased manufacturing costs caused by the high difficulty of machining PCD materials. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view schematic diagram of the structure of the cutter head of this utility model;

[0018] Figure 3 This is a three-dimensional structural schematic diagram of the cutter head and connecting column of this utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the present invention.

[0020] The numbers and letters in the diagram represent the names of the corresponding components:

[0021] 1. Tool holder; 2. Tapered column; 3. Tool head; 31. Auxiliary machining surface; 32. Chip removal groove; 33. Main machining surface; 4. Connecting column; 5. Main cutting edge. Detailed Implementation

[0022] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0023] See appendix Figure 1 -Appendix Figure 4 As shown, a high-precision, long-life micro PCD end mill includes a tool holder 1, a mounting base at the tail end of the tool holder 1, and a tapered post 2 at the front end of the tool holder 1. The diameter of the front end of the tapered post 2 is smaller than the diameter of the tail end of the tapered post 2, and the diameter of the tail end of the tapered post 2 is the same as the diameter of the tool holder 1. The surface of the tapered post 2 is smooth. The tool holder 1 is made of cemented carbide, and the tool tip 3 is made of PDC material.

[0024] The PCD material of the cutter head 3 has high hardness and low coefficient of thermal expansion, enabling higher machining accuracy. The high hardness of the PCD material ensures the sharpness and wear resistance of the cutting edge, making it less prone to wear during cutting and thus maintaining stable cutting dimensional accuracy. The low coefficient of thermal expansion reduces thermal deformation of the tool during cutting, further improving machining accuracy. When machining aero-engine blades, the integral PCD micro-cutting end mill can achieve high-precision machining of the blade profile, meeting the stringent accuracy requirements of aero-engine blades. Traditional end mills are prone to decreased machining accuracy due to wear and thermal deformation during machining, making it difficult to meet the needs of high-precision machining.

[0025] A connecting column 4 is provided at the front end of the tapered column 2. A cutting head 3 is fixedly installed at the front end of the connecting column 4. A main cutting edge 5 capable of machining the workpiece is provided on the cutting head 3. Auxiliary cutting edge assemblies are provided on both the front and back sides of the main cutting edge 5. The auxiliary cutting edge assembly consists of a chip removal groove 32, a main machining surface 33, and an auxiliary machining surface 31. The chip removal groove 32 is located on one side of the surface of the main cutting edge 5, the main machining surface 33 is located on the other side of the surface of the main cutting edge 5, and the auxiliary machining surface 31 is located on the surface of the main machining surface 33.

[0026] Through the special design of the chip removal groove 32, main machining surface 33, and auxiliary machining surface 31 in the main cutting edge 5 and the auxiliary cutting edge, compared with traditional cutting tools, when the main cutting edge 5 is machining the material, the main machining surface 33 in the auxiliary cutting edge assists in cutting, and the chip removal groove 32 on the auxiliary cutting edge can also assist, and together with the auxiliary machining surface 31, this tool can effectively reduce tool wear and improve the surface quality under high-speed cutting conditions, meeting the high-precision and high-performance machining requirements of aerospace parts. In addition, the micro-edge design of the cutting head 3, combined with the high-precision cutting capability of the main cutting edge 5 and the auxiliary cutting edge, can achieve sub-micron level machining accuracy, ensuring the performance and reliability of electronic components, thereby achieving optimal cutting performance and machining quality, and avoiding the problem of poor tool manufacturing accuracy and consistency due to the high machining difficulty of PCD materials, which increases manufacturing costs.

[0027] Furthermore, the diameter of the cutter head 3 is 2mm, the diameter of the shank 1 is 4mm, and the combined length of the shank 1, tapered column 2, connecting column 4, and cutter head 3 is 50mm. By designing the cutter head 3 with a diameter of 2mm, both the main cutting edge 5 and the auxiliary cutting edge in the cutter head 3 are designed with micro-edges. This allows the cutter head 3 to have high-precision cutting capabilities through the design of the micro-edges, enabling sub-micron level machining accuracy and ensuring the performance and reliability of electronic components.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-precision, long-life micro PCD end mill, characterized in that, include: The tool holder (1) has a tapered column (2) at its front end, a connecting column (4) at its front end, and a tool head (3) fixedly installed at its front end. The tool head (3) has a main cutting edge (5) capable of machining the workpiece, and auxiliary cutting edge components are provided on both the front and back sides of the main cutting edge (5).

2. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The auxiliary cutting edge assembly consists of a chip removal groove (32), a main machining surface (33), and an auxiliary machining surface (31). The chip removal groove (32) is located on one side of the surface of the main cutting edge (5), the main machining surface (33) is located on the other side of the surface of the main cutting edge (5), and the auxiliary machining surface (31) is located on the surface of the main machining surface (33).

3. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The tail end of the handle (1) is provided with a mounting base.

4. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The diameter of the front end of the tapered column (2) is smaller than the diameter of the tail end of the tapered column (2), the diameter of the tail end of the tapered column (2) is the same as the diameter of the handle (1), and the surface of the tapered column (2) is designed to be smooth.

5. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The diameter of the cutter head (3) is 2 mm.

6. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The diameter of the handle (1) is 4 mm.

7. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The handle (1) is made of cemented carbide.

8. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The material of the cutter head (3) is PDC material.

9. The high-precision, long-life micro PCD end mill according to claim 1, characterized in that, The combined length of the handle (1), the tapered column (2), the connecting column (4), and the cutter head (3) is 50 mm.

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