Single crystal diamond contour milling cutter

Abstract

The utility model discloses a single crystal diamond contour milling cutter which is characterized by comprising a cutter handle part, a cutter head bonding part, a cutter head and a cutter head, a tool bit structure which is arc-shaped in the radial direction is arranged on the periphery of the curved bonding surface of the tool bit bonding part; the tool bit structure comprises an arc-shaped cutting face in the radial direction, an axial cutting face connected with the arc-shaped cutting face in the axial direction and a radial cutting blade arranged at the radial end of the arc-shaped cutting face. An axial cutting edge of the axial cutting surface is obliquely arranged towards the direction of the cutter handle part; the arc-shaped cutting surface is a concave arc angle; the radial cutting blade comprises a blade front angle and a blade rear angle. According to the utility model, the contour precision and light transmission of a milled product are ensured, and a high-precision laser cutting forming design is adopted, so that the product can reach a required spline curve shape at one time, and the surface of the product has very bright appearance quality.

Description

Technical Field

[0001] The utility model relates to the field of diamond milling cutter processing, in particular to a single crystal diamond contour milling cutter. Background Art

[0002] Diamond profile milling cutter is a special milling cutter, the blade of which is made of diamond material. Diamond is a material with extremely high hardness, so during the milling process, the diamond profile milling cutter can remain sharp for a longer time, improving processing efficiency and processing quality.

[0003] Diamond profile milling cutters are usually used to process materials with high hardness and high wear resistance, such as graphite, ceramics, glass, etc. When processing these materials, traditional milling cutters are often unable to cope with the task, while diamond profile milling cutters can bring out their unique advantages.

[0004] In addition, diamond profile milling cutters can also be used to process materials such as metal and wood. When processing metal, diamond profile milling cutters can reduce cutting force and lower cutting temperature, thereby extending the service life of the tool. When processing wood, diamond profile milling cutters can improve the finish and flatness of the processed surface.

[0005] The utility model is mainly used for processing plastic (PC) materials in the 3C industry, and has very high requirements for the shape and contour of the product, the dimensional accuracy, the knife pattern, the product transmittance and the tool life.

[0006] This tool is specially developed for plastic (PC) material products. Its main features are ultra-high sharpness and long life, ensuring the contour accuracy and light transmittance of the milled products. It adopts high-precision laser cutting and molding design, which can make the product reach the required spline curve shape in one go, and the product surface has a very transparent appearance quality. Utility Model Content

[0007] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a single crystal diamond profile milling cutter.

[0008] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0009] A single crystal diamond profile milling cutter, comprising:

[0010] A knife handle, one end of which is provided with a knife head bonding portion having a curved bonding surface in a radial direction;

[0011] A cutter head structure having an arc shape in the radial direction is arranged on the outer periphery of the curved bonding surface of the cutter head bonding portion;

[0012] The cutter head structure comprises a radial arc-shaped cutting surface, an axial cutting surface in the axial direction connected to the arc-shaped cutting surface, and a radial cutting blade arranged at a radial end of the arc-shaped cutting surface;

[0013] The axial blade of the axial cutting surface is inclined toward the handle portion, and the inclination angle of the axial blade is 15±3°;

[0014] The arc-shaped cutting surface is a concave arc angle;

[0015] The radial cutting blade includes a blade rake angle and a blade clearance angle, and the angle of the blade rake angle is 15±3°;

[0016] The back angle of the blade is 25±3°.

[0017] In a preferred embodiment of the present invention, the arc angle is 0.01 in radians.

[0018] In a preferred embodiment of the present invention, the inclination angle of the axial blade is 15°.

[0019] In a preferred embodiment of the present invention, the front angle of the blade is 15°.

[0020] In a preferred embodiment of the present invention, the back angle of the blade is 25°.

[0021] In a preferred embodiment of the present invention, the radial width of the cutter head is 5.45±0.01 mm.

[0022] In a preferred embodiment of the present invention, the cutter head is made of single crystal diamond.

[0023] The beneficial effects of the utility model are:

[0024] The single crystal diamond contour milling cutter of the utility model is a special single crystal diamond contour milling cutter for processing plastic (PC) materials in the 3C industry. It ensures the contour accuracy and light transmittance of the milled product. It adopts high-precision laser cutting and molding design, which can make the product reach the required spline curve shape in one time, and the product surface has a very transparent appearance quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0026] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0027] Figure 3 The structure of the utility model is shown in FIG. Figure 3 .

[0028] Figure 4 It is a cutting schematic diagram of the utility model. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] like Figure 1 A single crystal diamond contour milling cutter as shown in or 2 includes a shank portion 110, and one end of the shank portion 110 is provided with a cutter head bonding portion 120 having a curved bonding surface 121 in a radial direction.

[0032] The tool head 200 is bonded by providing a curved bonding surface 121, and a tool head structure 200 with an arc shape in the radial direction is provided on the outer periphery of the curved bonding surface 121 of the tool head bonding portion 120. The tool head structure 200 is made of single crystal diamond as a whole.

[0033] The cutter head structure 200 includes a radial arc-shaped cutting surface 210 , an axial cutting surface 220 connected to the top of the arc-shaped cutting surface 210 , and a radial cutting blade 230 arranged at the radial end of the arc-shaped cutting surface 210 .

[0034] The radial width of the blade structure 200 is 5.45±0.01 mm, and it is made of single crystal diamond, which is mainly composed of diamond synthesized by special technical means in a laboratory using carbon element through chemical vapor deposition.

[0035] The material of the shank portion 110 is tungsten steel. High-strength hard alloy is also called tungsten steel, and its main component is tungsten carbide (chemical formula: WC). It uses cobalt (chemical formula: Co) as a binder and is a high-hardness alloy made through a powder metallurgy process.

[0036] Focus on combination Figure 1 The axial blade 221 of the axial cutting surface 220 is tilted toward the handle portion 110, and the tilt angle of the axial blade 221 is 15±3°. The preferred tilt angle in this embodiment is 15°.

[0037] Focus on combination Figure 2 The arc-shaped cutting surface 210 is a concave arc angle, and the arc angle is 0.01.

[0038] Focus on combination Figure 3 The radial cutting blade 230 includes a connected blade front angle 231 and a blade back angle 232. The blade front angle 231 is 15±3°, and the preferred angle in this embodiment is 15°.

[0039] The blade back angle 232 is 25±3°, and the preferred angle in this embodiment is 25°.

[0040] Because of the above structure, the working principle of the utility model is:

[0041] The utility model can ensure the contour accuracy and light transmittance of the milled product during the processing of the plastic workpiece 300, and adopts a high-precision laser cutting molding design, so that the product can reach the required spline curve shape at one time, and the product surface has a very transparent appearance quality.

Claims

1. A single crystal diamond profile milling cutter, characterized in that: include: A knife handle, one end of which is provided with a knife head bonding portion having a curved bonding surface in a radial direction; A cutter head structure having an arc shape in the radial direction is arranged on the outer periphery of the curved bonding surface of the cutter head bonding portion; The cutter head structure comprises a radial arc-shaped cutting surface, an axial cutting surface in the axial direction connected to the arc-shaped cutting surface, and a radial cutting blade arranged at a radial end of the arc-shaped cutting surface; The axial blade of the axial cutting surface is inclined toward the handle portion, and the inclination angle of the axial blade is 15±3°; The arc-shaped cutting surface is a concave arc angle; The radial cutting blade includes a blade rake angle and a blade clearance angle, and the angle of the blade rake angle is 15±3°; The back angle of the blade is 25±3°.

2. A single crystal diamond profile milling cutter as claimed in claim 1, characterized in that: The arc angle is 0.01 in radians.

3. A single crystal diamond profile milling cutter as claimed in claim 1, characterized in that: The inclination angle of the axial blade is 15°.

4. A single crystal diamond contour milling cutter as claimed in claim 1, characterized in that: The angle of the blade rake angle is 15°.

5. A single crystal diamond contour milling cutter as claimed in claim 1, characterized in that: The angle of the blade back angle is 25°.

6. A single crystal diamond contour milling cutter as claimed in claim 1, characterized in that: The radial width of the cutter head is 5.45±0.01 mm.

7. A single crystal diamond profile milling cutter as claimed in claim 1, characterized in that: The cutter head is made of single crystal diamond.

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