CNC multifunctional tool

Abstract

The utility model discloses a CNC multifunctional tool belongs to tool technical field, including the tool bar and the tool bit of its end, the root of tool bit is fixed in the end of tool bar, the length direction of tool bit is equipped with the chip groove, the edge of chip groove is equipped with outer cutting edge and inner cutting edge respectively, is used for processing the appearance and the inner hole of product. The utility model discloses through setting up the chip groove in the four around of tool bit, and setting up outer cutting edge and inner cutting edge respectively on the edge of chip groove upper and lower part, utilize outer cutting edge processing product's appearance, utilize inner cutting edge processing product's inner hole. Adopt the utility model processing product appearance and inner hole do not need to change the knife, can realize the processing of appearance and inner hole of product's once installation completion, greatly saved the auxiliary processing time, improved the processing efficiency, reduced the tool cost and the labor intensity of operating personnel, especially suitable for batch production.

Description

Technical Field

[0001] This utility model belongs to the field of cutting tool technology, and in particular relates to a CNC multi-functional cutting tool. Background Technology

[0002] In the production of tablets such as mobile phone battery covers, their external shape and internal holes need to be machined. Currently, the processing technology for these products requires two different specifications of cutting tools. Operators need to perform the machining in stages on a lathe. The efficiency of a single-axis machine is only 70 pieces / hour, and even with a CNC dual-axis machine, the output efficiency is only 140 pieces / hour. Furthermore, the machining process requires operators to change tools, resulting in tool change and machine setup cycles, which consumes a significant amount of auxiliary time. This not only affects production efficiency but also increases the labor intensity of operators, and the cost of cutting tools is also high. Utility Model Content

[0003] The purpose of this utility model is to provide a CNC multi-functional tool, which aims to solve the technical problems of low production efficiency, high labor intensity of operators, and high tool cost when machining the outer shape and inner hole of products with two different existing tools.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A CNC multi-functional tool includes a tool holder and a cutting head at its end. The root of the cutting head is fixed to the end of the tool holder. The cutting head has a chip removal groove along its length. The upper and lower edges of the chip removal groove are respectively provided with an outer cutting edge and an inner cutting edge, which are used to process the outer shape and inner hole of the product.

[0006] Preferably, the cutter head has an inverted T-shaped structure, including a straight bar portion, a disc portion, and a frustum portion. The outer cutting edge is located at the edge of the chip removal groove at the junction of the straight bar portion and the disc portion; the inner cutting edge is located at the edge of the chip removal groove at the junction of the disc portion and the frustum portion.

[0007] Preferably, the outer cutting edge is V-shaped, including a first cutting edge and a second cutting edge. The first cutting edge is located at the root of the straight rod portion and is used to process the shape of the product. The second cutting edge is located on the top inclined surface of the disc portion and is used to process the chamfer of the product's outer edge.

[0008] Preferably, the inner cutting edge is V-shaped, including a third cutting edge and a fourth cutting edge. The third cutting edge is located at the root of the round portion and is used to process the inner hole of the product. The fourth cutting edge is located on the bottom inclined surface of the disc portion and is used to process the chamfer of the edge of the inner hole of the product.

[0009] Preferably, the top surface of the disc portion is inclined at 15°, and the bottom surface of the disc portion is inclined at 35°.

[0010] Preferably, the diameter of the straight shank portion of the cutter head is 2mm, and the diameter of the round portion is 3.4mm.

[0011] Preferably, the chip removal groove is a left-handed spiral groove, and there are three chip removal grooves, which are evenly distributed on the outer circle of the cutter head.

[0012] Preferably, the material of the cutting head is tungsten steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention features chip-removal grooves around the cutter head, with external and internal cutting edges positioned above and below the edges of these grooves, respectively. The external cutting edge is used to machine the product's external shape, while the internal cutting edge is used to machine the product's internal hole. This method eliminates the need for tool changes, enabling the machining of both the external shape and internal hole in a single setup. This significantly reduces auxiliary machining time, improves machining efficiency, lowers tool costs, and reduces operator workload, making it particularly suitable for mass production. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the structure of a CNC multi-functional tool provided for an embodiment of this utility model;

[0018] Figure 2 for Figure 1 Another view of a CNC multi-functional tool;

[0019] Figure 3 This is a schematic diagram of the cutter head in an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the blank before the chip removal groove is machined in the embodiment of this utility model;

[0021] Figure 5 A schematic diagram of the structure of the mobile phone battery cover processed according to an embodiment of this utility model;

[0022] In the picture:

[0023] 00-Mobile phone battery cover, 01-Outer cutting edge machining area, 02-Inner cutting edge machining area; 1-Tool holder; 2-Tool head, 21-Straight rod part, 22-Disc part, 23-Turbo part; 3-Chip groove; 4-Outer cutting edge, 41-First cutting edge, 42-Second cutting edge; 5-Inner cutting edge, 51-Third cutting edge, 52-Fourth cutting edge. Detailed Implementation

[0024] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the following detailed description of the present utility model, some specific details are described in detail. However, for the parts not described in detail, those skilled in the art can fully understand the present utility model.

[0025] Furthermore, those skilled in the art should understand that the accompanying drawings are provided only to illustrate the purpose, features, and advantages of this utility model, and are not actually drawn to scale.

[0026] Furthermore, unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to."

[0027] like Figure 1 , Figure 2 and Figure 3 As shown in the figure, this utility model provides a CNC multi-functional tool, including a tool holder 1 and a tool head 2 at its end. The root of the tool head 2 is welded and fixed to the end of the tool holder 1. The tool head 2 has a chip removal groove 3 along its length direction. The upper and lower parts of the edge of the chip removal groove 3 are respectively provided with an outer cutting edge 4 and an inner cutting edge 5, which are used to process the outer shape and inner hole of the product. Figure 5 In the illustrated embodiment, the product to be processed is a mobile phone battery cover 00. The outer cutting edge is used to process the outer shape of the product, and the inner cutting edge is used to process the inner hole of the product. Using this invention, no tool change is required. On a CNC machine tool, the outer shape and inner hole of the mobile phone battery cover can be processed in a single assembly, improving processing efficiency and reducing tooling costs.

[0028] As a preferred structure, such as Figure 2 , 3As shown, the cutter head 2 has an inverted T-shaped structure, including a straight rod portion 21, a disc portion 22, and a frustum portion 23. The outer cutting edge 4 is located at the edge of the chip removal groove 3 at the junction of the straight rod portion 21 and the disc portion 22; the inner cutting edge 5 is located at the edge of the chip removal groove 3 at the junction of the disc portion 22 and the frustum portion 23. The chip removal groove 3 is a left-handed helical groove, and there are three chip removal grooves 3, evenly distributed on the outer circumference of the cutter head 2. Using three chip removal grooves allows for timely removal of cutting chips, preventing them from accumulating on the cutter head and affecting the quality of the machined surface. Simultaneously, the outer cutting edge 4 and the inner cutting edge 5 at the edge of the helical grooves allow for sequential machining of the product's external shape and internal holes, eliminating the need for tool changes, machine adjustments, and product repositioning, thus greatly improving machining efficiency.

[0029] In specific embodiments of this utility model, such as Figure 3 As shown, the outer cutting edge 4 is V-shaped, including a first cutting edge 41 and a second cutting edge 42. The first cutting edge 41 is located at the root of the straight rod portion 21 and is used to process the outer shape of the product. The second cutting edge 42 is located on the top inclined surface of the disc portion 22 and is used to process the chamfer of the outer edge of the product. Meanwhile, the inner cutting edge 5 is V-shaped, including a third cutting edge 51 and a fourth cutting edge 52. The third cutting edge 51 is located at the root of the round portion 23 and is used to process the inner hole of the product. The fourth cutting edge 52 is located on the bottom inclined surface of the disc portion 22 and is used to process the chamfer of the edge of the inner hole of the product. The cutting head used in the above processing facilitates the processing of the straight edges and chamfers of the product's outer shape, as well as the processing of the inner wall and chamfer of the inner hole of the product.

[0030] exist Figure 4 In the illustrated embodiment, the top surface of the disc portion 22 is inclined at 15°, and the bottom surface of the disc portion 22 is inclined at 35°. These dimensions can be adjusted according to the specific requirements of the product. After machining the angles on the cutting head, the chamfering requirements at the corresponding positions on the product can be met without the need for sharpening, making the processing more compact.

[0031] In the specific production process, such as Figure 4As shown, the straight shank 21 of the cutter head 2 has a diameter of 2mm, and the diameter of the frustum-shaped portion 23 is 3.4mm; the cutter head 2 is made of tungsten steel. This design can adapt to the processing of small parts of the product. Using tungsten steel for the cutter head has the characteristics of high hardness, wear resistance, good strength and toughness, as well as good heat resistance and corrosion resistance, which can extend the service life of the tool. In this embodiment, the material of the mobile phone battery cover to be processed is fiberglass leather. The tool resistance during processing is small, which fully meets the processing requirements. According to statistics, using this utility model, the unit output of one tool is 1400pcs, the average lifespan is 600pcs, and the output per machine is 2800pcs. Compared with the prior art, using this utility model reduces tool cost by 40%, increases output by 100%, increases tool lifespan by 70%, achieves 100% utilization of CNC machine tools, and increases per capita output by 100%.

[0032] In summary, this invention has the advantages of simple and compact structure and high processing efficiency. When machining tablet products such as mobile phone battery covers on CNC machine tools, this invention only requires one installation and positioning of the product, and a single tool can complete the machining of the product's outer shape, chamfers, inner holes, and chamfers, saving tool change time and machine setup time. Using this invention simplifies the machining process, saves on the number of tools, auxiliary machining time, and manpower, greatly improves production efficiency, reduces tool costs and labor intensity, and is especially suitable for mass production.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A CNC multi-functional cutting tool, characterized in that: The tool includes a tool holder and a cutting head at its end. The root of the cutting head is fixed to the end of the tool holder. The cutting head has a chip removal groove along its length. The upper and lower edges of the chip removal groove are respectively provided with an outer cutting edge and an inner cutting edge, which are used to process the outer shape and inner hole of the product. The cutter head has an inverted T-shaped structure, including a straight bar, a disc, and a frustum. The outer cutting edge is located at the edge of the chip groove at the junction of the straight bar and the disc; the inner cutting edge is located at the edge of the chip groove at the junction of the disc and the frustum. The outer cutting edge is V-shaped and includes a first cutting edge and a second cutting edge. The first cutting edge is located at the root of the straight rod and is used to process the shape of the product. The second cutting edge is located on the top inclined surface of the disc and is used to process the chamfer of the product's outer edge. The inner cutting edge is V-shaped and includes a third cutting edge and a fourth cutting edge. The third cutting edge is located at the root of the round portion and is used to process the inner hole of the product. The fourth cutting edge is located on the bottom inclined surface of the disc portion and is used to process the chamfer of the edge of the inner hole of the product.

2. The CNC multi-functional tool according to claim 1, characterized in that: The top surface of the disc is inclined at 15°, and the bottom surface of the disc is inclined at 35°.

3. A CNC multi-functional tool according to claim 1, characterized in that: The diameter of the straight part of the cutter head is 2mm, and the diameter of the round part is 3.4mm.

4. A CNC multi-functional tool according to claim 1, characterized in that: The chip removal groove is a left-handed spiral groove, and there are three chip removal grooves, which are evenly distributed on the outer circle of the cutter head.

5. A CNC multi-functional tool according to any one of claims 1-4, characterized in that: The cutter head is made of tungsten steel.

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