A pcd diamond slot drill

By designing and improving the profile and material combination of the PCD diamond grooving tool, the challenges of high precision and long service life in the surface forming of non-ferrous and non-metallic materials have been solved, achieving efficient and low-cost processing results.

CN224346966UActive Publication Date: 2026-06-12SHANGHAI YUHER DIAMOND TOOL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI YUHER DIAMOND TOOL
Filing Date
2025-05-16
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing cutting tools cannot simultaneously meet the requirements of high precision, smooth surface and long service life in the forming of non-ferrous metals and non-metals, resulting in low processing efficiency and high cost.

Method used

A PCD diamond grooving tool was designed, featuring an improved profile, including an axisymmetric diamond grooving mounting surface and a chamfer design. Combined with a tool holder made of 40CrMo alloy steel, the tool utilizes a PCD diamond composite blade structure formed by high-temperature and high-pressure sintering to achieve one-cut molding.

Benefits of technology

It improves the efficiency and precision of non-ferrous and non-metallic surface forming processes, extends tool life, and reduces production costs.

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Abstract

This utility model discloses a PCD diamond grooving tool, characterized in that it includes: a tool holder, with a tool head structure provided at one end of the tool holder; the end of the tool head structure is provided with a first diamond grooving cutting edge mounting surface and a second diamond grooving cutting edge mounting surface that are symmetrically mirrored on the first diamond grooving cutting edge mounting surface; a first diamond grooving cutting edge structure is provided on the first diamond grooving cutting edge mounting surface; and a second diamond grooving cutting edge structure is provided on the second diamond grooving cutting edge mounting surface. Through improved contour design, it achieves one-cut forming, resulting in high processing efficiency for the surface forming of non-ferrous metals and non-metals.
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Description

Technical Field

[0001] This utility model relates to the field of diamond tool manufacturing, specifically to a PCD diamond grooving tool. Background Technology

[0002] In the field of non-ferrous metal and non-metal appearance forming processing, there are many stringent requirements for products.

[0003] First, in terms of product precision, this is a key factor in ensuring its perfect adaptation and stable functioning in various application scenarios. Even extremely small dimensional deviations can affect the performance and quality of the entire product, so precision must be controlled within a very small tolerance range.

[0004] Secondly, a good surface finish not only enhances the appearance of a product, making it more attractive, but also influences the user experience and subsequent processing procedures to some extent. For example, in applications where friction is critical, a smooth surface can reduce frictional wear.

[0005] Accurate shape and profile ensure that the product meets design requirements, guarantees smooth assembly, and avoids assembly difficulties or failures caused by shape deviations.

[0006] In addition, tool life is also an important consideration. Due to the different properties of non-ferrous metals and non-metallic materials, tool wear is significant during machining. Therefore, it is necessary to select appropriate tool materials and cutting parameters to extend tool life, reduce production costs, and improve production efficiency. Only by fully meeting these high requirements can high quality and high efficiency be achieved in the surface forming of non-ferrous metals and non-metallic materials. Utility Model Content

[0007] To overcome the aforementioned shortcomings of the prior art, the purpose of this utility model is to provide a PCD diamond grooving tool. This utility model, through an improved contour design, achieves one-cut forming, resulting in high processing efficiency.

[0008] To achieve the objective of this utility model, the technical solution adopted is as follows:

[0009] A PCD diamond grooving tool, comprising:

[0010] A handle portion, wherein a blade head structure is provided at one end of the handle portion;

[0011] The end of the cutter head structure is provided with a first diamond groove cutting edge mounting surface and a second diamond groove cutting edge mounting surface that are symmetrical about the axis.

[0012] A first diamond groove cutting edge structure is provided on the mounting surface of the first diamond groove cutting edge;

[0013] A second diamond groove cutting edge structure is provided on the mounting surface of the second diamond groove cutting edge;

[0014] The first end face of the first diamond groove cutting edge structure is provided with a first inner side and a first outer side by a first chamfer on both sides;

[0015] The first inner surface is connected to the first arc-shaped surface by a first inclined surface;

[0016] The first outer surface is connected to the first arc-shaped surface via the second inclined surface and the second outer surface;

[0017] The second end face of the second diamond groove cutting edge structure has a second inner surface and a third outer surface provided on both sides by a second chamfer;

[0018] The second inner surface is connected to the second arc-shaped surface via a third inclined surface;

[0019] The third outer surface is connected to the second arc-shaped surface via a fourth inclined surface and the fourth outer surface;

[0020] A first end blade is provided on the first end face;

[0021] A second end blade is provided on the second end face.

[0022] In a preferred embodiment of this utility model, the radius (R) of the first chamfer or the second chamfer is 0.5 mm.

[0023] In a preferred embodiment of the present invention, the first rear angle of the first end blade is 6°, the second rear angle is 12°, and the blade width of the first end blade is 0.3.

[0024] In a preferred embodiment of the present invention, the first rear angle of the second end blade is 6°, the second rear angle is 12°, and the blade width of the second end blade is 0.3.

[0025] In a preferred embodiment of this utility model, the first diamond groove cutting edge mounting surface or the second diamond groove cutting edge mounting surface is an inclined mounting surface with an inclination angle of 5°.

[0026] The beneficial effects of this utility model are as follows:

[0027] With improved contour design, it can be machined in one cut, resulting in high processing efficiency for the appearance forming of both non-ferrous and non-metallic materials. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0029] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0030] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 . Detailed Implementation

[0031] 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.

[0032] 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.

[0033] like Figure 1-3 The PCD diamond grooving tool shown includes a shank portion 100, and a tool head structure 110 is provided at one end of the shank portion 100.

[0034] The handle part 100 is made of 40CrMo. 40CrMo is an alloy steel material with high strength, high toughness and good hardenability.

[0035] The end of the cutter head structure 110 is provided with a first diamond groove cutting edge mounting surface 111 and a second diamond groove cutting edge mounting surface 112 that are symmetrical about the axis.

[0036] A first diamond groove cutting edge structure 210 is provided on the first diamond groove cutting edge mounting surface 111, and a second diamond groove cutting edge structure 220 is provided on the second diamond groove cutting edge mounting surface 112.

[0037] Both the first diamond groove cutting edge structure 210 and the second diamond groove cutting edge structure 220 are made of PCD diamond composite sheet. The PCD diamond composite sheet is made by sintering diamond powder and metal binder under high temperature (1000~2000℃) and high pressure (50,000~100,000 atmospheres).

[0038] The first diamond groove cutting edge mounting surface 111 or the second diamond groove cutting edge mounting surface 112 is an inclined mounting surface with an inclination angle of 5°.

[0039] The first end face 211 of the first diamond groove cutting edge structure 210 has a first inner surface 213 and a first outer surface 214 on both sides through a first chamfer 212. A first end cutting edge 211a is provided on the first end face 211. The first clearance angle of the first end cutting edge is 6°, the second clearance angle is 12°, and the cutting width of the first end cutting edge is 0.3.

[0040] The first inner surface 213 is connected to the first arcuate surface 216 via the first inclined surface 215, and the first outer surface 214 is connected to the first arcuate surface 216 via the second inclined surface 217 and the second outer surface 218. The inclination angle of the first inclined surface 215 or the second inclined surface 217 is 45°.

[0041] The second end face 221 of the second diamond groove cutting edge structure 220 has a second inner surface 223 and a third outer surface 224 on both sides via a second chamfer 222. The second inner surface 223 is connected to the second arc-shaped surface 226 via a third bevel 225. The third outer surface 224 is connected to the second arc-shaped surface 226 via a fourth bevel 227 and a fourth outer surface 228. A second end cutting edge 222a is provided on the second end face 221. The first clearance angle of the second end cutting edge is 6°, the second clearance angle is 12°, and the cutting width of the second end cutting edge is 0.3.

[0042] The radius (R) of either the first chamfer 212 or the second chamfer 222 is 0.5 mm.

[0043] This utility model, through an improved contour design, enables one-cut forming, resulting in high processing efficiency for the appearance forming of both non-ferrous and non-metallic materials.

[0044] In PCD diamond composite materials, the diamond particles reach a submicron size. Due to their excellent edge sharpness and retention, the ultra-fine particle structure is suitable for applications requiring mirror-like finish. It offers high efficiency, high quality, and stability for product development and processing, while also ensuring high precision and long tool life. This can effectively reduce processing costs and improve product competitiveness.

[0045] The above shows and describes the basic principles, main features, and advantages of this utility model.

[0046] 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 grooving tool, characterized in that, include: A handle portion, wherein a blade head structure is provided at one end of the handle portion; The end of the cutter head structure is provided with a first diamond groove cutting edge mounting surface and a second diamond groove cutting edge mounting surface that are symmetrical about the axis. A first diamond groove cutting edge structure is provided on the mounting surface of the first diamond groove cutting edge; A second diamond groove cutting edge structure is provided on the mounting surface of the second diamond groove cutting edge; The first end face of the first diamond groove cutting edge structure is provided with a first inner side and a first outer side by a first chamfer on both sides; The first inner surface is connected to the first arc-shaped surface by a first inclined surface; The first outer surface is connected to the first arc-shaped surface via the second inclined surface and the second outer surface; The second end face of the second diamond groove cutting edge structure has a second inner surface and a third outer surface provided on both sides by a second chamfer; The second inner surface is connected to the second arc-shaped surface via a third inclined surface; The third outer surface is connected to the second arc-shaped surface via a fourth inclined surface and the fourth outer surface; A first end blade is provided on the first end face; A second end blade is provided on the second end face.

2. The PCD diamond grooving tool as described in claim 1, characterized in that, The radius (R) of the first or second chamfer is 0.5 mm.

3. The PCD diamond grooving tool as described in claim 1, characterized in that, The first clearance angle of the first end blade is 6°, the second clearance angle is 12°, and the blade width of the first end blade is 0.

3.

4. The PCD diamond grooving tool as described in claim 1, characterized in that, The first clearance angle of the second end blade is 6°, the second clearance angle is 12°, and the blade width of the second end blade is 0.

3.

5. A PCD diamond grooving tool as described in claim 1, characterized in that, The first diamond groove cutting edge mounting surface or the second diamond groove cutting edge mounting surface is an inclined mounting surface with an inclination angle of 5°.