A novel CNC machining composite tool

Abstract

This utility model discloses a novel CNC machining composite tool, comprising a tool holder and a tool head. The tool head is equipped with an arc-shaped surface machining section and a chamfering machining section. The chamfering machining section of the tool head includes an upper chamfering machining section and a lower chamfering machining section. The upper chamfering machining section is located on the upper end side of the arc-shaped surface machining section, and the lower chamfering machining section is located on the lower end side of the arc-shaped surface machining section. The upper chamfering machining section, the arc-shaped surface machining section, and the lower chamfering machining section are connected sequentially from top to bottom, and the upper end of the upper chamfering machining section is connected to the tool holder. The outer diameter of the upper chamfering machining section gradually decreases from top to bottom, the outer diameter of the lower chamfering machining section gradually increases from top to bottom, and the outer diameter of the arc-shaped surface machining section gradually increases from the middle to both ends. Through the above structural design, this utility model has the advantages of novel structural design and high machining efficiency, that is, it can effectively improve CNC machining efficiency, and is particularly suitable for CNC machining of shell products with chamfering structures on both the upper and lower edges of the arc-shaped surface.

Description

Technical Field

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

[0002] like Figure 1 The tablet computer casing 3 shown has an outer contour surface that is curved 31. The upper edge of the curved surface has an upper chamfer 32, and the lower edge of the curved surface has a lower chamfer 33. For the tablet computer casing product mentioned above, during the CNC machining process, the traditional CNC machining method is to process the curved surface 31, the upper chamfer 32, and the lower chamfer 33 separately using different tools, which results in low CNC machining efficiency.

[0003] Chinese utility model patent with patent number ZL202420568936.3 and patent name: Multi-purpose cutting tool, substantially discloses a CNC machining composite cutting tool; the multi-purpose cutting tool discloses the following technical solution, specifically: a multi-purpose cutting tool, including a tool holder and a cutting head, the cutting head is disposed at one end of the tool holder and coaxially arranged with the tool holder, the cutting head includes an arc-shaped part, a roughing part and a chamfering part connected in sequence, the end of the arc-shaped part away from the roughing part is connected to the tool holder, the tool holder and the roughing part are both cylindrical structures, the diameter of the arc-shaped part is smaller than the diameter of the tool holder and smaller than the diameter of the roughing part, the roughing part is used for rough machining the outline of the product, the arc-shaped part is used for machining the arc-shaped surface of the product, and the chamfering part is used for machining the chamfer of the product.

[0004] It should be noted that when the above-mentioned multi-purpose tool is used, the tool head includes a roughing section for rough machining the shape of the product, an arc section for machining the arc surface of the product, and a chamfering section for machining the chamfer of the product. This gives the multi-purpose tool the function of machining multiple features of the product, thereby saving the time of tool switching in the machining center and reducing the number of tools, thus improving machining efficiency and reducing tool costs.

[0005] However, the aforementioned multi-purpose cutting tools still have the following drawbacks, specifically:

[0006] Defect 1: The curved part is used to process the curved surface of the product, and the chamfered part is used to process the chamfer of the product. There is a roughing section between the curved part and the chamfered part. For shell products with chamfered edges on the curved surface, this multi-purpose tool needs to perform two passes: one pass for machining the curved surface and the other pass for chamfering. Since the machining of the curved surface and the chamfering cannot be completed simultaneously in one pass, this multi-purpose tool has the problem of low CNC machining efficiency.

[0007] Defect 2: This multi-purpose tool has only one chamfered section, which is insufficient for... Figure 1As shown in the tablet computer case, after completing one chamfer, the CNC machine tool needs to change tools to complete the other chamfer, resulting in low CNC machining efficiency. Utility Model Content

[0008] The purpose of this utility model is to provide a new type of CNC machining composite tool to address the shortcomings of existing technologies. This new CNC machining composite tool has a novel structural design and can effectively improve CNC machining efficiency. It is especially suitable for CNC machining of shell products with chamfered structures on both the upper and lower edges of the curved surface.

[0009] To achieve the above objectives, this utility model is implemented through the following technical solution.

[0010] A novel CNC machining composite tool includes a tool holder and a tool head disposed at the lower end of the tool holder. The tool holder and the tool head are an integral structure and are arranged coaxially.

[0011] The cutting head is equipped with a curved surface machining section and a chamfering machining section;

[0012] The chamfering part of the cutting head includes an upper chamfering part and a lower chamfering part. The upper chamfering part is located on the upper side of the arc surface machining part, and the lower chamfering part is located on the lower side of the arc surface machining part. The upper chamfering part, the arc surface machining part, and the lower chamfering part are connected in sequence from top to bottom. The upper end of the upper chamfering part is connected to the tool holder.

[0013] The outer diameter of the upper chamfer machining part gradually decreases from top to bottom, the outer diameter of the lower chamfer machining part gradually increases from top to bottom, and the outer diameter of the arc surface machining part gradually increases from the middle to both ends.

[0014] The cutter head also includes a reinforcing part, which is arranged coaxially with the cutter handle and the cutter head.

[0015] The reinforcing part is located at the lower end of the lower chamfering part, and the lower end of the lower chamfering part is connected to the upper end of the reinforcing part.

[0016] The upper chamfering part and the lower chamfering part are respectively used to process C-shaped chamfers.

[0017] The arc-shaped surface processing section is used to process arc surfaces.

[0018] Compared with existing technologies, this utility model has the following advantages: Specifically, the novel CNC machining composite tool of this utility model can simultaneously process the curved surface, upper chamfer, and lower chamfer of a tablet computer shell in a single pass, resulting in high processing efficiency. Furthermore, because it eliminates the need for tool changes and repeated clamping operations, it achieves high processing accuracy. Therefore, this novel CNC machining composite tool has the advantages of novel structural design and high processing efficiency, effectively improving CNC machining efficiency, and is particularly suitable for CNC machining of shell products with chamfered structures on both the curved surface and the lower edge. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the structure of a tablet computer casing.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model.

[0022] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0023] exist Figures 1 to 3 This includes:

[0024] 1-Tool holder; 2-Tool head; 21-Upper chamfering part; 22-Arc surface machining part; 23-Lower chamfering part; 24-Reinforcing part; 3-Tablet shell; 31-Arc surface; 32-Upper chamfer; 33-Lower chamfer. Detailed Implementation

[0025] The present invention will now be described in conjunction with specific embodiments.

[0026] Example 1, as Figure 2 and Figure 3 As shown, a novel CNC machining composite tool includes a tool holder 1 and a tool head 2 disposed at the lower end of the tool holder 1. The tool holder 1 and the tool head 2 are an integral structure, and the tool holder 1 and the tool head 2 are arranged coaxially.

[0027] Among them, such as Figure 2 and Figure 3 As shown, the cutter head 2 is provided with an arc-shaped surface machining section 22 and a chamfering machining section.

[0028] Furthermore, such as Figure 2 and Figure 3As shown, the chamfering part of the cutter head 2 includes an upper chamfering part 21 and a lower chamfering part 23. The upper chamfering part 21 is located on the upper end side of the arc surface processing part 22, and the lower chamfering part 23 is located on the lower end side of the arc surface processing part 22. The upper chamfering part 21, the arc surface processing part 22, and the lower chamfering part 23 are connected sequentially from top to bottom. The upper end of the upper chamfering part 21 is connected to the cutter shank 1.

[0029] Furthermore, such as Figure 2 and Figure 3 As shown, the outer diameter of the upper chamfering part 21 gradually decreases from top to bottom, the outer diameter of the lower chamfering part 23 gradually increases from top to bottom, and the outer diameter of the arc-shaped surface part 22 gradually increases from the middle to both ends.

[0030] Using the novel CNC machining composite tool of this embodiment one Figure 1 During the CNC machining process of the tablet computer shell 3 shown, the arc surface machining part 22 is used to machine the arc surface 31 of the tablet computer shell 3, the upper chamfer machining part 21 is used to machine the upper chamfer 32 of the tablet computer shell 3, and the lower chamfer machining part 23 is used to machine the lower chamfer 33 of the tablet computer shell 3.

[0031] It should be emphasized that the new CNC machining composite tool in this embodiment can simultaneously process the arc surface 31, the upper chamfer 32, and the lower chamfer 33 of the tablet computer shell 3 in a single pass, resulting in high processing efficiency. Furthermore, because there is no need for tool changing or repeated clamping operations, the processing accuracy is high.

[0032] In summary, the novel CNC machining composite tool of this embodiment has the advantages of novel structural design and high machining efficiency through the above structural design. It can effectively improve CNC machining efficiency and is especially suitable for CNC machining of shell products with chamfered structures on both the upper and lower edges of the arc surface 31.

[0033] Example 2, as Figure 2 and Figure 3 As shown, the difference between this embodiment 2 and embodiment 1 is that the cutter head 2 also includes a reinforcing part 24, which is coaxially arranged with the cutter handle 1 and the cutter head 2.

[0034] The reinforcing part 24 is located at the lower end of the lower chamfering part 23, and the lower end of the lower chamfering part 23 is connected to the upper end of the reinforcing part 24.

[0035] The reinforcing part 24 in this embodiment can effectively increase the strength of the lower chamfered part 23.

[0036] Example 3, as Figure 2 and Figure 3As shown, the difference between this embodiment three and embodiment one is that the upper chamfering part 21 and the lower chamfering part 23 are used to process C chamfers.

[0037] Example 4, as Figure 2 and Figure 3 As shown, the difference between this embodiment four and embodiment one is that the arc surface processing part 22 is used to process arc surfaces.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A novel CNC machining composite tool, comprising a tool holder (1) and a tool head (2) disposed at the lower end of the tool holder (1), wherein the tool holder (1) and the tool head (2) are integral structures and the tool holder (1) and the tool head (2) are arranged coaxially; The cutting head (2) is equipped with an arc surface machining section (22) and a chamfering machining section; characterized in that The chamfering part of the cutting head (2) includes an upper chamfering part (21) and a lower chamfering part (23). The upper chamfering part (21) is located on the upper side of the arc surface processing part (22), and the lower chamfering part (23) is located on the lower side of the arc surface processing part (22). The upper chamfering part (21), the arc surface processing part (22), and the lower chamfering part (23) are connected from top to bottom. The upper end of the upper chamfering part (21) is connected to the tool holder (1). The outer diameter of the upper chamfering part (21) gradually decreases from top to bottom, the outer diameter of the lower chamfering part (23) gradually increases from top to bottom, and the outer diameter of the arc surface part (22) gradually increases from the middle to both ends.

2. The new type of compound numerical control machining cutter according to claim 1, characterized in that: The cutting head (2) also includes a reinforcing part (24), which is coaxially arranged with the cutting handle (1) and the cutting head (2); The reinforcing part (24) is located at the lower end of the lower chamfering part (23), and the lower end of the lower chamfering part (23) is connected to the upper end of the reinforcing part (24).

3. The new type of compound numerical control machining cutter according to claim 1, characterized in that: The upper chamfering part (21) and the lower chamfering part (23) are respectively used to process C-shaped chamfers.

4. The new type of compound numerical control machining cutter according to claim 1, characterized in that: The arc surface processing part (22) is used to process arc surfaces.

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