PCD (Poly Crystal Diamond) milling cutter with arc-shaped cutter head structure

Abstract

The utility model discloses a PCD (Poly Crystal Diamond) diamond milling cutter with an arc-shaped cutter head structure, which is characterized by comprising a metal cutter handle, a diamond blade mounting platform is arranged at a diamond blade mounting part of the metal cutter handle, and the diamond blade mounting platform is a diamond blade mounting platform with radian; an arc-shaped tool bit structure made of a PCD diamond material is arranged on the diamond blade mounting platform, the axial cross section of the arc-shaped tool bit structure comprises a first inclined surface facing the front end, the first inclined surface is connected with a first vertical surface in the inclined direction, and the tail end of the first vertical surface is connected with a second vertical surface through a first arc surface; and the front end of the second vertical surface is connected with the other end of the first inclined surface through a second cambered surface. The special large arc shape design is adopted, one-time machining forming is achieved, and the machining efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of diamond tool manufacturing, specifically to a PCD diamond end mill with an arc-shaped cutting head structure. Background Technology

[0002] In the field of non-ferrous metal and non-metallic surface forming processing, extremely stringent requirements are faced. In terms of product precision, an extremely high level must be achieved, as any slight dimensional deviation may affect the performance and quality of the product, and thus its stability and reliability in practical applications.

[0003] Surface finish is equally important. A smooth, flat surface not only enhances the product's appearance and texture but also reduces friction, lowers energy consumption, and extends its lifespan. For example, in the manufacture of precision instruments, a high-gloss surface effectively prevents the adsorption of impurities.

[0004] There are also strict requirements for the shape and outline. Precise shape design is the foundation for the product to achieve specific functions, ensuring that the components fit perfectly and work together.

[0005] In addition, tool life is also a key factor. During machining, tools must possess good wear resistance and stability to reduce the increased costs and decreased production efficiency caused by frequent tool changes. Only by meeting these high requirements can high-quality non-ferrous metal and non-metal products be produced. Utility Model Content

[0006] To overcome the aforementioned shortcomings of the prior art, the purpose of this utility model is to provide a PCD diamond end mill with an arc-shaped cutting head structure. This utility model adopts a professional large arc shape design, enabling one-cut forming and high processing efficiency.

[0007] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0008] A PCD diamond end mill with an arc-shaped cutting head structure, comprising:

[0009] A metal tool holder, wherein a diamond blade mounting platform is provided at the diamond blade mounting part of the metal tool holder, and the diamond blade mounting platform is a curved diamond blade mounting platform;

[0010] A PCD diamond-material arc-shaped tool head structure is provided on the diamond tool mounting platform;

[0011] The axial cross-section of the arc-shaped cutter head structure includes a first inclined surface facing the front end, a first vertical surface connected in the inclined direction of the first inclined surface, and the end of the first vertical surface connected to a second vertical surface through a first arc surface;

[0012] The front end of the second vertical surface is connected to the other end of the first inclined surface through the second arc surface;

[0013] The inclination angle of the first inclined plane is 2-4°;

[0014] The first arc surface is a quarter circle arc;

[0015] The radius (R) of the second arc surface is 2.9-3.1 mm;

[0016] The front end of the arc-shaped cutter head structure is provided with a first axial front angle and a second axial front angle.

[0017] The front end of the arc-shaped cutter head structure is provided with a first radial front angle and a second radial front angle.

[0018] The first axial forward angle is 14-16°;

[0019] The angle of the second axial forward angle is 30°;

[0020] The angle of the first radial front angle is 14-16°;

[0021] The angle of the second radial front angle is 30°.

[0022] In a preferred embodiment of this utility model, the end of the arc-shaped cutter head structure is provided with an arc-shaped chip removal groove.

[0023] In a preferred embodiment of this invention, the metal handle is made of cemented carbide, preferably tungsten steel.

[0024] The beneficial effects of this utility model are as follows:

[0025] This utility model adopts a professional large arc shape design, which can be formed in one cut, resulting in high processing efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0027] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0028] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 . Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, in the following descriptions, well-known structures and technologies have been omitted to avoid unnecessary confusion regarding the concept of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figure 1-3 The PCD diamond end mill shown includes a metal shank 100 and a diamond insert mounting platform 110 with an arc-shaped tip. The metal shank 100 has a diamond insert mounting portion and the diamond insert mounting platform 110 is an arc-shaped diamond insert mounting platform. The metal shank is made of cemented carbide. In this embodiment, it is tungsten carbide, specifically tungsten carbide.

[0032] Key points combined Figure 1 A PCD diamond-material arc-shaped cutting head structure 200 is provided on the diamond cutting tool mounting platform 110. The PCD diamond material is a PCD diamond composite sheet, which is made by sintering diamond powder and existing known metal binders for bonding diamond in a certain proportion under high temperature (1000-2000℃) and high pressure (50,000-100,000 atmospheres).

[0033] The axial cross-section of the arc-shaped cutter head structure 200 includes a first inclined surface 210 facing the front end, with an inclination angle of 2-4°.

[0034] The first vertical surface 220 is connected in the inclined direction of the first inclined surface 210, and the end of the first vertical surface 220 is connected to the second vertical surface 240 through the first arc surface 230. The first arc surface 230 is a quarter circle arc.

[0035] The front end of the second vertical surface 240 is connected to the other end of the first inclined surface 210 via the second arc surface 250. The radius (R) of the second arc surface 250 is 2.9-3.1 mm.

[0036] Key points combined Figure 2 and Figure 3The front end of the arc-shaped cutter head structure 200 is provided with a first axial rake angle 201 and a second axial rake angle 202. The angle of the first axial rake angle 201 is 14-16°, and the angle of the second axial rake angle 202 is 30°.

[0037] The front end of the arc-shaped cutter head structure 200 is provided with a first radial rake angle 203 and a second radial rake angle 204. The angle of the first radial rake angle 203 is 14-16° and the angle of the second radial rake angle 204 is 30°.

[0038] The end of the arc-shaped cutter head structure 200 is provided with an arc-shaped chip removal groove 300.

[0039] Because of the above structure, the working principle of this utility model is as follows:

[0040] This invention features a professional large-arc shape design, enabling one-cut forming and high processing efficiency. The PCD diamond composite material in this invention contains diamond particles with a sub-micron particle size. Due to its excellent cutting edge sharpness and retention, and ultra-fine particle structure, it is suitable for applications requiring mirror-like finishes. It offers high efficiency, high quality, and stability for product development and processing, while also ensuring high precision and long tool life, effectively reducing processing costs and enhancing product competitiveness.

[0041] The above shows and describes the basic principles, main features, and advantages of this utility model.

[0042] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of this utility model as defined by the appended claims and their equivalents.

Claims

1. A PCD diamond end mill with an arc-shaped cutting head structure, characterized in that, include: A metal tool holder, wherein a diamond blade mounting platform is provided at the diamond blade mounting part of the metal tool holder, and the diamond blade mounting platform is a curved diamond blade mounting platform; A PCD diamond-material arc-shaped tool head structure is provided on the diamond tool mounting platform; The axial cross-section of the arc-shaped cutter head structure includes a first inclined surface facing the front end, a first vertical surface connected in the inclined direction of the first inclined surface, and the end of the first vertical surface connected to a second vertical surface through a first arc surface; The front end of the second vertical surface is connected to the other end of the first inclined surface through the second arc surface; The inclination angle of the first inclined plane is 2-4°; The first arc surface is a quarter circle arc; The radius (R) of the second arc surface is 2.9-3.1 mm; The front end of the arc-shaped cutter head structure is provided with a first axial front angle and a second axial front angle. The front end of the arc-shaped cutter head structure is provided with a first radial front angle and a second radial front angle. The first axial forward angle is 14-16°; The angle of the second axial forward angle is 30°; The angle of the first radial front angle is 14-16°; The angle of the second radial front angle is 30°.

2. The PCD diamond end mill with an arc-shaped cutting head structure as described in claim 1, characterized in that, The end of the arc-shaped cutter head structure is provided with an arc-shaped chip removal groove.

3. The PCD diamond end mill with an arc-shaped cutting head structure as described in claim 1, characterized in that, The metal handle is made of cemented carbide.

4. A PCD diamond end mill with an arc-shaped cutting head structure as described in claim 3, characterized in that, The cemented carbide is tungsten steel.

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