Multi-functional composite cutter

Abstract

The utility model discloses a multifunctional composite cutter relates to cutter technical field, including the cylindrical cutter body, the one end of cutter body has the coaxial setting cutter head of integral forming along its axial direction, and the cutter head includes the first chamfer blade, transition blade, second chamfer blade and side blade that are arranged in order from the cutter body to the terminal along its axial direction, the blade edge of first chamfer blade is the concave arc shape blade edge that is inwardly concave, and the transition blade is the inverse circular cone curved surface blade that is gradually reduced from top to bottom, and the bottom surface of this transition blade forms the end surface blade, the second chamfer blade is the inclined plane blade that is inclinedly arranged relative to cutter body axis, and the side blade is the cylindrical blade, and its diameter is less than the diameter of transition blade lower end, and the upper end of first chamfer blade and the outer circumferential surface of cutter body form first chip removal gap, and the lower end of first chamfer blade and the upper end of transition blade are smoothly transitioned through the circular arc, and form second chip removal gap in the transition area. The utility model can complete the processing to product without replacing cutter, and the number of times and time of tool changing are reduced significantly.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a multifunctional composite cutting tool. Background Technology

[0002] In the 3C industry, especially in the manufacturing of laptops and tablets, there is often a need for multi-tool collaborative machining. Specifically, machining the PL surface typically requires one end mill; machining the radius (R) of the outer surface requires an internal radius cutter; machining the screen mounting adhesive surface requires another end mill; and chamfering the inner sidewall of the PL surface requires an angle chamfering tool. Therefore, to meet different machining needs, multiple tools are usually required.

[0003] The current traditional machining method uses four tools, which means that four tool changes are required during the machining process. Assuming each tool change takes 3 seconds, the tool change time alone is 12 seconds. If the product structure is complex and the tool requirements increase, the machine tool's tool magazine may not be able to hold enough tools, thus affecting the smooth progress of machining. In addition, due to multiple tool changes and the different characteristics of the tools, the errors between the tools will affect the machining accuracy, resulting in the stability and quality of the product.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned problems, which led to the creation of this case. Utility Model Content

[0005] This utility model provides a multifunctional composite tool, which aims to solve the problems of large number of tools, frequent tool changes, low processing efficiency and processing accuracy caused by tool errors when processing 3C products.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A multifunctional composite cutting tool includes a cylindrical cutting body. One end of the cutting body has a coaxially arranged cutting head integrally formed along its axial direction. The cutting head includes a first chamfering edge, a transition edge, a second chamfering edge, and a side edge arranged sequentially from the cutting body to its end along its axial direction. The first chamfering edge has an inwardly concave arc-shaped cutting edge. The transition edge is a tapered frustum-shaped curved surface that gradually narrows from top to bottom, and the bottom surface of the transition edge forms an end face edge. The second chamfering edge is an inclined surface edge that is inclined relative to the axis of the cutting body. The side edge is a cylindrical edge with a diameter smaller than the diameter of the lower end of the transition edge. A first chip removal notch is formed between the upper end of the first chamfering edge and the outer peripheral surface of the cutting body. The lower end of the first chamfering edge and the upper end of the transition edge are smoothly transitioned by an arc, and a second chip removal notch is formed in the transition area.

[0008] Furthermore, the bottom end of the blade body is provided with an inclined section that gradually narrows inward from top to bottom, and the lower end of the inclined section is smoothly connected to the upper end of the first chamfered blade through an arc-shaped curved surface.

[0009] Furthermore, the cone angle of the inverted frustum-shaped surface of the aforementioned transition edge ranges from 10° to 60°.

[0010] Furthermore, the bottom surface of the first chip removal notch is a concave arc surface or inclined surface that extends obliquely from the outer periphery of the cutter body to the upper end of the first chamfered edge.

[0011] Furthermore, the bottom surface of the second chip removal notch is a concave arc surface or inclined surface extending from the lower end of the first chamfering edge to the upper end of the transition edge.

[0012] Furthermore, the tilt angle of the second chamfering edge ranges from 5° to 45°.

[0013] Furthermore, the material of the aforementioned cutting head is high-speed steel, cemented carbide, or coated cemented carbide.

[0014] As can be seen from the above description of the structure of this utility model, this utility model has the following advantages:

[0015] This invention integrates multiple cutting edges with different functions on the tool head, including a first chamfering edge, a transition edge, an end face edge, a second chamfering edge, and a side edge. This enables the machining of products without changing the tool, significantly reducing the number of tool changes and time, reducing the impact of tool error accumulation on machining accuracy, improving machining efficiency and product quality, while also reducing the need for tools and optimizing the space of the machine tool magazine. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

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

[0018] Figure 3 This is a schematic diagram of the structure of the first chamfering edge of this utility model during processing.

[0019] Figure 4 This is an enlarged schematic diagram of the structure of the cutter head of this utility model.

[0020] Figure 5 This is a schematic diagram of the R-angle of the surface of the present invention.

[0021] Figure 6 This is a schematic diagram of the structure of the present invention in processing the adhesive-bonded surface.

[0022] Reference numerals: 10-Tool body; 11-Inclined section; 21-First chamfering edge; 22-Transition edge; 221-End face edge; 23-Second chamfering edge; 24-Side edge; 31-First chip removal notch; 32-Second chip removal notch. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] Reference Figures 1 to 6 A multifunctional composite cutting tool includes a cylindrical blade body 10. One end of the blade body 10 has a coaxially arranged cutting head integrally formed along its axial direction. In this embodiment, the blade body 10 is made of alloy structural steel or stainless steel, and the cutting head is made of high-speed steel, cemented carbide, or coated cemented carbide. The cutting head includes a first chamfering edge 21, a transition edge 22, a second chamfering edge 23, and a side edge 24 arranged sequentially from the blade body 10 to its end along its axial direction. The first chamfering edge 21 has an inwardly concave arc-shaped cutting edge, and the transition edge 22 is a tapered frustum-shaped curved surface that gradually narrows from top to bottom. The bottom surface of the transition edge 22... The blade has an end face 221, and the cone angle of the inverted frustum curved surface of the transition blade 22 ranges from 10° to 60°. The second chamfering blade 23 is a beveled blade that is inclined relative to the axis of the blade body 10, and the inclination angle of the second chamfering blade 23 ranges from 5° to 45°. The side blade 24 is a cylindrical blade with a diameter smaller than the diameter of the lower end of the transition blade 22. A first chip removal notch 31 is formed between the upper end of the first chamfering blade 21 and the outer peripheral surface of the blade body 10. The lower end of the first chamfering blade 21 and the upper end of the transition blade 22 are smoothly transitioned by an arc, and a second chip removal notch 32 is formed in the transition area.

[0025] During machining, the first chamfering edge 21, transition edge 22, end face edge 221, second chamfering edge 23, and side edge 24 of the cutting head enable the machining of products without changing the cutting tools, significantly improving machining efficiency. Furthermore, the concave arc-shaped cutting edge of the first chamfering edge 21, the frustum-shaped curved surface of the transition edge 22, and the inclined surface design of the second chamfering edge 23 can effectively reduce cutting force and vibration, enhancing stability. The cylindrical design of the side edge 24 improves machining accuracy, and the chip removal notch can effectively prevent chip accumulation and reduce the wear of the cutting head.

[0026] Reference Figures 1 to 6The bottom end of the cutter body 10 is provided with an inclined section 11 that gradually narrows inward from top to bottom. The lower end of the inclined section 11 is smoothly connected to the upper end of the first chamfering edge 21 through an arc-shaped curved surface. The bottom surface of the first chip removal notch 31 is a concave arc surface or inclined surface that extends from the outer periphery of the cutter body 10 to the upper end of the first chamfering edge 21. The bottom surface of the second chip removal notch 32 is a concave arc surface or inclined surface that extends from the lower end of the first chamfering edge 21 to the upper end of the transition edge 22. With this arrangement, the chips generated during the cutting process can be effectively discharged through the first chip removal notch 31 and the second chip removal notch 32. (Refer to...) Figure 3 As shown by the arrow, chip accumulation on the tool surface is avoided, ensuring unobstructed flow in the cutting zone, reducing resistance during the cutting process, and improving the cutting performance and service life of the tool.

[0027] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A multifunctional composite cutting tool, comprising a cylindrical cutting body, characterized in that: One end of the cutting tool body is integrally formed with a coaxially arranged cutting head along its axial direction. The cutting head includes a first chamfering edge, a transition edge, a second chamfering edge, and a side edge arranged sequentially from the cutting tool body to its end along its axial direction. The first chamfering edge has an inwardly concave arc-shaped cutting edge. The transition edge is a truncated cone-shaped curved surface that gradually narrows from top to bottom, and the bottom surface of the transition edge forms an end face edge. The second chamfering edge is an inclined surface edge that is inclined relative to the axis of the cutting tool body. The side edge is a cylindrical edge with a diameter smaller than the diameter of the lower end of the transition edge. A first chip removal notch is formed between the upper end of the first chamfering edge and the outer peripheral surface of the cutting tool body. The lower end of the first chamfering edge and the upper end of the transition edge are smoothly transitioned by an arc, and a second chip removal notch is formed in the transition area.

2. The multifunctional composite cutting tool according to claim 1, characterized in that: The bottom end of the blade body is provided with an inclined section that gradually narrows inward from top to bottom, and the lower end of the inclined section is smoothly connected to the upper end of the first chamfered blade through an arc-shaped curved surface.

3. The multifunctional composite cutting tool according to claim 1 or 2, characterized in that: The cone angle of the inverted frustum-shaped surface of the transition blade ranges from 10° to 60°.

4. The multifunctional composite cutting tool according to claim 1, characterized in that: The bottom surface of the first chip removal notch is a concave arc surface or inclined surface that extends obliquely from the outer periphery of the cutter body to the upper end of the first chamfered edge.

5. The multifunctional composite cutting tool according to claim 1, characterized in that: The bottom surface of the second chip removal notch is a concave arc surface or inclined surface extending from the lower end of the first chamfering edge to the upper end of the transition edge.

6. The multifunctional composite cutting tool according to claim 1, characterized in that: The inclination angle of the second chamfering edge ranges from 5° to 45°.

7. The multifunctional composite cutting tool according to claim 1, characterized in that: The cutter head is made of high-speed steel, cemented carbide, or coated cemented carbide.

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