Multipurpose cutter

Abstract

The utility model discloses a multi-purpose cutter. The multi-purpose cutter comprises a cutter handle and a cutter head, the tool bit is arranged at one end of the tool handle and coaxially arranged with the tool handle, the tool bit comprises an arc-shaped part, a roughing part and a chamfering part which are sequentially connected, the end, away from the roughing part, of the arc-shaped part is connected with the tool handle, the tool handle and the roughing part are each of a cylindrical structure, the diameter of the arc-shaped part is smaller than that of the tool handle and that of the roughing part, and the roughing part is used for roughly machining the appearance of a product. The arc-shaped part is used for processing an arc-shaped surface of a product, and the chamfering part is used for processing a chamfer of the product. According to the multipurpose tool, the tool bit comprises the roughing part used for roughly machining the appearance of the product, the arc-shaped part used for machining the arc-shaped face of the product and the chamfering part used for machining the chamfer of the product, so that the multipurpose tool has the function of machining multiple characteristics of the product; therefore, the time for switching the cutters of the machining center is saved, the number of the cutters is reduced, the machining efficiency is improved, and the cutter cost is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of machining tools, and in particular to a multi-purpose tool. Background Art

[0002] At present, the side of the shell of some electronic devices such as mobile phones and tablets is a curved surface, and there is a chamfer between the side and the back to improve the aesthetics of the electronic device and the comfort when holding it. When processing the shell of such electronic devices, a machining center usually drives a variety of tools to perform rough processing, curved surface processing and chamfering on the side of the shell. However, it takes a long time for the machining center to switch between different tools, resulting in low processing efficiency. In addition, the use of multiple tools leads to high tool costs. Utility Model Content

[0003] In view of the above, it is necessary to propose a multi-purpose tool to improve machining efficiency and reduce tool cost.

[0004] An embodiment of the present application provides a multi-purpose tool, including a shank and a tool head; the tool head is arranged at one end of the shank and coaxially arranged with the shank, the tool head includes an arc portion, a roughened portion and a chamfered portion connected in sequence, the end of the arc portion away from the roughened portion is connected to the shank, the shank and the roughened portion are both cylindrical structures, the diameter of the arc portion is smaller than the diameter of the shank and smaller than the diameter of the roughened portion, the roughened portion is used for rough processing of the shape of a product, the arc portion is used for processing the arc surface of the product, and the chamfered portion is used for processing the chamfer of the product.

[0005] The above-mentioned multi-purpose tool is provided with a tool head including a roughing portion for rough processing the shape of the product, a curved portion for processing the curved surface of the product, and a chamfering portion for processing the chamfer of the product. Therefore, the multi-purpose tool of the embodiment of the present application has the function of processing multiple features of the product, thereby saving the time of switching tools in the machining center and reducing the number of tools, thereby improving machining efficiency and reducing tool costs.

[0006] In some embodiments, along the axial direction of the shank, the length of the thickened portion is greater than the length of the arc-shaped portion.

[0007] In some embodiments, the diameter of the thickened portion is greater than or equal to the diameter of the shank.

[0008] In some embodiments, the cross-sectional area of ​​the arc-shaped portion gradually increases from the middle of the arc-shaped portion toward both sides along the axis of the shank.

[0009] In some embodiments, the arc portion includes a first arc segment, a horizontal segment, and a second arc segment connected in sequence, the first arc segment and the second arc segment are respectively connected to the tool handle and the roughening portion at one end away from the horizontal segment, the horizontal segment is parallel to the tool handle, and the cross-sectional area of ​​the first arc segment and the second arc segment gradually increases in a direction away from the horizontal segment.

[0010] In some embodiments, along a direction away from the tool handle, the cross-sectional area of ​​the chamfered portion gradually decreases and a chamfered slope is formed on a side wall of the chamfered portion, and the chamfered slope is used for processing the chamfer of the product.

[0011] In some embodiments, the chamfered portion has a cutoff surface coaxial with the tool handle on a side facing away from the roughened portion, and the chamfered slope is located between the cutoff surface and the roughened portion.

[0012] In some embodiments, the angle between the chamfered surface and the axis of the tool handle is in the range of 5 degrees to 20 degrees.

[0013] In some embodiments, along the axial direction of the tool handle, the length of the chamfered portion is smaller than the lengths of the arc-shaped portion and the thickened portion.

[0014] In some embodiments, a side wall of the tool handle at one end away from the tool head has a limiting surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the multi-purpose tool provided in the embodiment of the present application.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of a multi-purpose knife provided in another embodiment of the present application.

[0017] Main component symbols

[0018] Multi-purpose knife 100

[0019] Handle 10

[0020] Axis 11

[0021] Limiting surface 12

[0022] Segment 20

[0023] Rough part 21

[0024] Arc portion 22

[0025] The first arc segment 221

[0026] Horizontal section 222

[0027] The second arc segment 223

[0028] Chamfered part 23

[0029] Chamfered surface 231

[0030] Cut-off surface 232 DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0032] In the description of the present application, it should be understood that the terms 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 the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, it should be noted that the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication, it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

[0034] See also Figure 1 The embodiment of the present application provides a multi-purpose tool 100 for processing curved surfaces, chamfers and other features of a product. The product may be a housing of an electronic device such as a mobile phone or a tablet computer. For ease of understanding and explanation, the embodiment of the present application takes the housing of a mobile phone as an example for explanation. Obviously, this is not a limitation of the embodiment of the present application.

[0035] In the embodiment of the present application, the multi-purpose tool 100 includes a tool handle 10 and a tool head 20 .

[0036] The tool head 20 is disposed at one end of the tool handle 10 and is coaxially arranged with the tool handle 10 , and the other end of the tool handle 10 is used to be connected to a machining shaft (not shown) of a machining center (not shown).

[0037] The tool head 20 includes a roughening portion 21, an arcuate portion 22 and a chamfered portion 23, which are connected in sequence. The arcuate portion 22 is connected to the tool handle 10 at one end away from the roughening portion 21. The tool handle 10 and the roughening portion 21 are both cylindrical structures. The diameter of the arcuate portion 22 is smaller than the diameter of the tool handle 10 and smaller than the diameter of the roughening portion 21. The roughening portion 21 is used for rough processing of the product's shape, the arcuate portion 22 is used for processing the curved surface of the product, and the chamfered portion 23 is used for processing the chamfer of the product.

[0038] Specifically, when the multi-purpose tool 100 of the embodiment of the present application is used to process the side of the product, the roughing portion 21 is first used to rough-process the shape of the side of the product, so that the side of the product is perpendicular to the back of the product, and the rubber protruding from the side of the product during the sealing process can be milled off, and then the arc portion 22 is used to rough and fine mill the arc profile of the side of the product so that the side of the product forms an arc surface, and finally the chamfering portion 23 is used to chamfer the part between the side and the back of the product to form a chamfer. In this way, the multi-purpose tool 100 of the embodiment of the present application can rough-process the shape of the product, and can process the arc surface and chamfer of the product, saving the time of switching tools in the machining center and reducing the number of tools, thereby improving the machining efficiency and reducing the tool cost. In addition, by arranging the arc portion 22 between the shank 10 and the roughing portion 21, when the roughing portion 21 is rough-processing the shape of the product, the debris generated by the roughing portion 21 can be stored in the arc portion 22 and discharged through the arc portion 22, thereby improving the chip holding and chip removal capacity of the multi-purpose tool 100.

[0039] In this embodiment, along the direction of the axis 11 of the handle 10, the length of the roughened portion 21 is greater than the length of the arcuate portion 22. Since the roughened portion 21 performs rough processing on the outer shape of the side of the product, and the arcuate portion 22 performs arcuate surface processing on the side of the product, only when the width of the side of the product formed by the rough processing of the roughened portion 21 is greater than the length of the arcuate portion 22, can it be ensured that the arcuate portion 22 is in full contact with the side of the product and accurately processes the arcuate surface. In this way, by setting the length of the roughened portion 21 to be greater than the length of the arcuate portion 22, it is beneficial to improve the accuracy of the arcuate surface of the product processed by the arcuate portion 22.

[0040] In this embodiment, the diameter of the roughened portion 21 is greater than or equal to the diameter of the tool handle 10. This is beneficial to improving the structural strength of the roughened portion 21 and reducing the probability of the tool handle 10 touching other parts of the product when the roughened portion 21 is roughing the side shape of the product.

[0041] In this embodiment, a plurality of first spiral blades (not shown) are convexly provided at intervals on the roughing portion 21, and the plurality of first spiral blades are designed to rotate leftward and cut rightward, so that the chip removal direction of the roughing portion 21 is toward the arc portion 22, thereby facilitating the rapid discharge of the chips generated by the roughing portion 21 on the side of the product from the roughing portion 21 from the arc portion 22. The front angles of the plurality of first spiral blades are designed to be incremental, so as to improve the sharpness and impact resistance of the plurality of first spiral blades.

[0042] In this embodiment, the arc portion 22 is designed to be concave, and the cross-sectional area of ​​the arc portion 22 gradually increases from the middle of the arc portion 22 to both sides along the axis 11 of the tool handle 10. In this way, the arc surface of the product can be accurately processed.

[0043] In this embodiment, the curvature of the arc-shaped portion 22 is specifically designed according to the curvature of the arc-shaped surface to be formed by processing the product, and this embodiment of the present application does not specifically limit this.

[0044] In this embodiment, a plurality of second spiral blades (not shown) are convexly provided on the arc portion 22 and are arranged at intervals. The plurality of second spiral blades are designed in a right-handed and right-cutting manner, and the plurality of second spiral blades use a spiral angle instead of a shear angle. A secondary tool groove (not shown) is also provided on the arc portion 22, which is beneficial to improving the sharpness and impact resistance of the arc portion 22.

[0045] See also Figure 2 In order to meet the processing requirements of arcuate surfaces of some special structures of products, in another embodiment, the arcuate portion 22 includes a first arcuate segment 221, a horizontal segment 222, and a second arcuate segment 223 connected in sequence, and the ends of the first arcuate segment 221 and the second arcuate segment 223 away from the horizontal segment 222 are respectively connected to the handle 10 and the roughening portion 21, and the horizontal segment 222 is parallel to the handle 10. In the direction away from the horizontal segment 222, the cross-sectional area of ​​the first arcuate segment 221 and the second arcuate segment 223 gradually increases. In this way, the arcuate surface of the product formed by the arcuate portion 22 has a structure with a plane in the middle and arcuate at both ends, which can meet the processing requirements of the corresponding shapes of the side surfaces of the shells of some mobile phones and tablet computers.

[0046] Please refer again Figure 1 In this embodiment, the cross-sectional area of ​​the chamfered portion 23 gradually decreases in the direction away from the tool handle 10 and a chamfered slope 231 is formed on the side wall of the chamfered portion 23. The chamfered slope 231 is used for chamfering the processed product. By providing the chamfered slope 231 to process the chamfer of the product, the accuracy of the chamfering of the processed product can be improved.

[0047] In this embodiment, the chamfered portion 23 has a cut-off surface 232 on the side facing away from the rough portion 21, which is in common with the axis 11 of the tool handle 10, and the chamfered slope 231 is located between the cut-off surface 232 and the roughened portion 21. The width of the chamfered slope 231 is limited by setting the cut-off surface 232, so that the width of the chamfered slope 231 can be set correspondingly according to the width of the chamfer to be processed according to the product.

[0048] In this embodiment, the angle between the chamfered surface 231 and the axis 11 of the handle 10 is in the range of 5-20 degrees. Specifically, the angle between the chamfered surface 231 and the axis 11 of the handle 10 is designed according to the material of the product being cut. When the product is made of stainless steel, the angle between the chamfered surface 231 and the axis 11 of the handle 10 can be in the range of 7-8 degrees. When the product is made of aluminum alloy or other materials, the angle between the chamfered surface 231 and the axis 11 of the handle 10 can be appropriately increased. By limiting the range of the angle between the chamfered surface 231 and the axis 11 of the handle 10, it is beneficial to improve the service life of the chamfered portion 23 and the processing accuracy of the chamfered portion 23 when processing the chamfered product.

[0049] In this embodiment, a plurality of third spiral blades (not shown) are protruding from the chamfered surface 231 and are arranged at intervals. The plurality of third spiral blades are designed to be right-handed and right-cut, and a secondary blade with a back angle (not shown) is provided on the chamfered surface 231, which is beneficial to improving the sharpness and wear resistance of the chamfered portion 23.

[0050] In this embodiment, along the axis 11 of the tool handle 10, the length of the chamfered portion 23 is shorter than the lengths of the arc portion 22 and the roughened portion 21. This is beneficial to improving the structural strength of the chamfered portion 23 and the stability during chamfering.

[0051] In this embodiment, the side wall of the tool handle 10 at one end away from the tool head 20 has a limiting surface 12. When the tool handle 10 is connected to the machining axis of the machining center, the limiting surface 12 can limit the rotation of the tool handle 10 relative to the machining axis, thereby facilitating the machining center to drive the multi-purpose tool 100 to process products with higher accuracy and stability.

[0052] To sum up, the multi-purpose tool 100 of the embodiment of the present application has the function of processing multiple features of the product by providing a tool head 20 including a roughing portion 21 for rough processing the shape of the product, a curved portion 22 for processing the curved surface of the product, and a chamfering portion 23 for processing the chamfer of the product. This saves the time of switching tools in the machining center and reduces the number of tools, thereby improving machining efficiency and reducing tool costs.

[0053] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present application.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A multi-purpose tool, characterized in that: include: Handle; A tool head is arranged at one end of the tool handle and is coaxially arranged with the tool handle. The tool head includes an arc-shaped portion, a roughening portion and a chamfering portion connected in sequence. The end of the arc-shaped portion away from the roughening portion is connected to the tool handle. The tool handle and the roughening portion are both cylindrical structures. The diameter of the arc-shaped portion is smaller than the diameter of the tool handle and smaller than the diameter of the roughening portion. The roughening portion is used for rough processing of the shape of the product, the arc-shaped portion is used for processing the arcuate surface of the product, and the chamfering portion is used for processing the chamfer of the product.

2. The multi-purpose tool according to claim 1, characterized in that: Along the axial direction of the shank, the length of the thickened portion is greater than the length of the arc-shaped portion.

3. The multi-purpose tool according to claim 1, characterized in that: The diameter of the thickened portion is greater than or equal to the diameter of the tool handle.

4. The multi-purpose tool according to claim 1, characterized in that: The cross-sectional area of ​​the arc-shaped portion gradually increases from the middle of the arc-shaped portion toward both sides along the axis of the knife handle.

5. The multi-purpose tool according to claim 1, characterized in that: The arc-shaped portion includes a first arc segment, a horizontal segment, and a second arc segment connected in sequence. The ends of the first arc segment and the second arc segment away from the horizontal segment are respectively connected to the tool handle and the roughening portion. The horizontal segment is parallel to the tool handle. In the direction away from the horizontal segment, the cross-sectional areas of the first arc segment and the second arc segment gradually increase.

6. The multi-purpose tool according to claim 1, characterized in that: Along the direction away from the tool handle, the cross-sectional area of ​​the chamfered portion gradually decreases and a chamfered slope is formed on the side wall of the chamfered portion, and the chamfered slope is used for processing the chamfer of the product.

7. The multi-purpose tool according to claim 6, characterized in that: The chamfered portion has a cut-off surface coaxial with the tool handle on one side away from the roughened portion, and the chamfered inclined surface is located between the cut-off surface and the roughened portion.

8. The multi-purpose tool according to claim 6, characterized in that: The angle between the chamfered surface and the axis of the tool handle is in the range of 5 degrees to 20 degrees.

9. The multi-purpose tool according to claim 1, characterized in that: Along the axial direction of the tool handle, the length of the chamfered portion is smaller than the lengths of the arc-shaped portion and the thickened portion.

10. The multi-purpose tool according to claim 1, characterized in that: The side wall of the knife handle at one end away from the knife head has a limiting surface.

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