Compound tool
By designing a composite tool with a tool head structure that combines planar and contour milling functions, the problem of cumbersome traditional milling processes is solved, achieving efficient and precise machining results and reducing tool management costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional milling processes are cumbersome, have low production efficiency, poor machining accuracy and quality, and the use of multiple tools increases management costs and storage pressure.
Design a composite tool that combines a tool holder and a tool head. The tool head is equipped with a first cutting part for planar milling and a second cutting part for contour milling, including a first side cutting edge and a second side cutting edge. It can complete multiple operations in one machining process, reduce tool change frequency, and improve efficiency and accuracy.
By using composite tools, planar and contour milling can be completed in a single machining process, reducing operational difficulty, improving production efficiency, reducing tool change frequency, enhancing machining accuracy and surface quality, and reducing costs.
Smart Images
Figure CN224115244U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of milling tool technology, and in particular to a composite tool. Background Technology
[0002] In machining processes, contour milling and face milling are common and important machining operations. Traditional machining methods typically use single-function cutters for contour milling and face milling respectively. However, when using a single contour milling cutter, only one contour can be milled at a time. For workpieces with multiple contours, multiple tool changes and adjustments to machining parameters are required, making the machining process cumbersome, time-consuming, and resulting in low production efficiency. Furthermore, multiple tool changes can introduce positioning errors, affecting the machining accuracy and surface quality of the product. In addition, the use of multiple cutters increases tool management costs and the pressure on tool storage in the equipment. Utility Model Content
[0003] Therefore, it is necessary to provide a composite tool to address the problems of cumbersome milling processes, low production efficiency, and poor machining accuracy and quality in current milling operations.
[0004] One or more embodiments of this application provide a composite cutting tool, comprising:
[0005] Handle;
[0006] The cutting head has a first end and a second end disposed opposite to each other and a circumferential surface connected between the first end and the second end. The first end is connected to the tool holder. The second end is provided with a first cutting part for planar milling. The circumferential surface is provided with a second cutting part. The second cutting part includes a first side cutting edge and a second side cutting edge for contour milling, respectively.
[0007] With the above structure, a first cutting part and a second cutting part are respectively provided on the end face and the circumferential surface of the cutter head, which can perform planar milling and contour milling on the product respectively. In addition, the first side edge and the second side edge in the second cutting part can process the product with different contours. Thus, multiple processes of planar milling and contour milling can be completed in one machining process, reducing the difficulty of operation, improving the machining efficiency, reducing the frequency of tool changes, and improving the machining accuracy and surface quality of the product.
[0008] According to one or more embodiments, the first cutting part includes three end blades, each end blade being evenly spaced circumferentially along the second end. This effectively improves the vibration resistance of the first cutting part.
[0009] According to one or more embodiments, the rake angle formed by the various end edges is in the range of 2° to 4°. Setting the rake angle to this range ensures the impact resistance and wear resistance of the composite tool, effectively extending its service life.
[0010] According to one or more embodiments, a chip groove is formed between every two adjacent end cutting edges. During milling, the milled chips can be temporarily stored and contained through each chip groove, enabling smoother milling.
[0011] According to one or more embodiments, the cross-sectional diameter of the cutting head is D, and the core thickness of the first cutting portion ranges from 40%D to 45%D. Setting the core thickness of the first cutting portion within the above range can provide a larger chip space while ensuring the strength of the composite tool, making the milling process smoother.
[0012] According to one or more embodiments, the second cutting portion further includes a third side cutting edge for planar milling, wherein the first side cutting edge and the second side cutting edge are spaced apart along the direction from the first end to the second end to form the third side cutting edge between them.
[0013] With the above structure, the first and second side edges can be used to process different contours simultaneously with a composite tool, while the third side edge can be used to perform planar milling on the side of the product. In other words, the second cutting part can perform planar milling and contour milling on the product at the same time, which can effectively improve work efficiency and reduce processing costs.
[0014] According to one or more embodiments, the first cutting part includes three end edges; the second cutting part includes three, each of the second cutting parts including one first side edge and one second side edge, the second cutting parts are evenly spaced along the circumference of the cutting head, and each second cutting part corresponds to each end edge.
[0015] According to one or more embodiments, a chip-receiving groove is formed between every two adjacent end edges, and a spiral groove is formed between every two adjacent second cutting portions, with each spiral groove communicating with the corresponding chip-receiving groove.
[0016] According to one or more embodiments, the blade head and the handle are integrally formed.
[0017] According to one or more embodiments, the cross-sectional diameter of the knife handle is 12 mm.
[0018] The aforementioned composite tool has a first cutting section and a second cutting section respectively provided on the end face and circumferential surface of the tool head, which can perform planar milling and contour milling on the product respectively. In addition, the first and second side edges in the second cutting section can process different contours of the product. Thus, multiple processes of planar milling and contour milling can be completed in one machining process, reducing the difficulty of operation, improving the machining efficiency, reducing the frequency of tool changes, and improving the machining accuracy and surface quality of the product. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural schematic diagram of a composite tool according to one or more embodiments.
[0020] Figure 2 This is a plan view of a composite tool according to one or more embodiments.
[0021] Figure 3 This is a three-dimensional structural schematic diagram of a composite tool according to one or more embodiments.
[0022] Figure 4 This is a plan view of a composite tool according to one or more embodiments.
[0023] Figure 5 This is a three-dimensional structural schematic diagram of a composite tool according to one or more embodiments.
[0024] Figure 6 This is a schematic diagram of contour milling of a workpiece using a first side cutting edge in a composite tool according to one or more embodiments.
[0025] Figure 7 This is a schematic diagram of contour milling of a workpiece using a second side edge in a composite tool according to one or more embodiments.
[0026] Explanation of reference numerals in the attached drawings: 100, compound tool; 10, tool holder; 20, tool tip; 21, first end; 22, second end; 23, circumferential surface; 24, first cutting section; 25, second cutting section; 241, end cutting edge; 242, chip groove; 251, first side cutting edge; 252, second side cutting edge; 253, third side cutting edge; 254, helical groove. Detailed Implementation
[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.
[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0033] Please refer to the following: Figure 1 and Figure 2 One embodiment of this application provides a composite tool 100, including a tool holder 10 and a tool head 20, wherein the tool head 20 has a first end 21 and a second end 22 disposed opposite to each other and a peripheral surface 23 connecting the first end 21 and the second end 22. The first end 21 is connected to the tool holder 10, the second end 22 is provided with a first cutting portion 24 for planar milling, and the peripheral surface 23 is provided with a second cutting portion 25. The second cutting portion 25 includes a first side cutting edge 251 and a second side cutting edge 252 respectively used for contour milling.
[0034] It should be noted that contour milling and face milling are common and important machining operations in machining. Milling refers to cutting a workpiece using a rotating multi-edged cutting tool. During operation, the tool rotates, performing the main motion, while the workpiece is either fixed or moved. The machining of the workpiece is achieved through the movement of the rotating tool. Face milling refers to milling operations used to machine flat surfaces, while contour milling refers to milling operations used to machine grooves or shapes with specific contours.
[0035] In current machining processes, single-function tools are typically used for contour milling and planar milling respectively. This means that only one contour can be milled at a time. For workpieces with multiple contours, multiple tool changes and adjustments to machining parameters are required, resulting in cumbersome machining procedures, significant time consumption, and low production efficiency.
[0036] Furthermore, multiple tool changes may introduce positioning errors and other issues, affecting the machining accuracy and surface quality of the product. In addition, the use of multiple tools increases tool management costs and the pressure on tool storage in the equipment.
[0037] Based on this, this application provides a composite tool 100, including a tool holder 10 and a tool head 20. The tool holder 10 is usually used for fixing or connecting, while the tool head 20 is the structure that actually performs the milling operation.
[0038] Specifically, since the composite tool 100 typically performs milling by rotation, the tool head 20 and the tool holder 10 are usually configured as cylindrical structures to facilitate rotation. The tool head 20 has a first end 21 and a second end 22 arranged opposite to each other along its own axial direction, and the circumferential surface 23 is an arc surface connecting the first end 21 and the second end 22.
[0039] The first end 21 of the cutter head 20 is connected to the tool holder 10, and the second end 22 is provided with a first cutting part 24, which can perform planar milling. In addition, a second cutting part 25 is provided on the peripheral surface 23 of the cutter head 20, which can perform contour milling.
[0040] Furthermore, the first side cutting edge 251 and the second side cutting edge 252 can simultaneously perform contour milling on different workpieces or on different positions of the workpieces, or they can sequentially perform contour milling on different workpieces or on different positions of the workpieces.
[0041] Understandably, the specific contours of the first side cutting edge 251 and the second side cutting edge 252 can be adjusted according to the actual workpiece contour to be milled, which will not be elaborated here.
[0042] Thus, with the above structure, a first cutting part 24 and a second cutting part 25 are respectively provided on the end face and the peripheral surface 23 of the cutter head 20, which can perform planar milling and contour milling on the product respectively. In addition, the first side cutting edge 251 and the second side cutting edge 252 in the second cutting part 25 can process the product with different contours. Thus, multiple processes of planar milling and contour milling can be completed in one processing, reducing the difficulty of operation, improving the processing efficiency, and also reducing the frequency of tool changes, improving the processing accuracy and surface quality of the product.
[0043] like Figure 3 and Figure 4 As shown, in some embodiments, the first cutting portion 24 includes three end blades 241, each end blade 241 being evenly spaced along the circumference of the second end 22.
[0044] Specifically, the first cutting part 24 includes three end blades 241, that is, the first cutting part 24 is designed with a three-bladed flat bottom, which can effectively improve the shock resistance of the first cutting part 24.
[0045] In some embodiments, the rake angle of the tool formed by the various end edges 241 is in the range of 2° to 4°.
[0046] Specifically, the first cutting part 24 is first centered to obtain the center point of the first cutting part 24. Then, the cutting point is moved from the center point to the tip of the cutting diameter of one of the end cutting edges 241 and the pull-down value is taken. The measured angle is the tool rake angle.
[0047] The size of the rake angle of a cutting tool affects its cutting force and strength. The larger the rake angle, the sharper the cut; conversely, the smaller the rake angle, the higher the tool strength.
[0048] Therefore, setting the rake angle of the tool to the above range can ensure the impact resistance and wear resistance of the composite tool 100 and effectively extend the service life of the composite tool 100.
[0049] In some embodiments, a chip groove 242 is formed between every two adjacent end cutting edges 241. Thus, during the milling process, the milled chips can be temporarily stored and contained through each chip groove 242, enabling smoother milling.
[0050] In some embodiments, the cross-sectional diameter of the cutter head 20 is D, and the core thickness of the first cutting portion 24 ranges from 40%D to 45%D.
[0051] Specifically, the first end 21, which connects the cutter head 20 to the tool holder 10, is usually the main body of the cutter head 20, while the second end 22, which is away from the first end 21, is the structure that actually performs the milling operation.
[0052] Furthermore, the cross-sectional diameter of the cutter head 20 refers to the cross-sectional diameter of the main body of the cutter head 20. The core thickness of the first cutting part 24 affects the strength of the composite tool 100. The greater the core thickness of the first cutting part 24, the greater the strength of the composite tool 100. Conversely, the smaller the core thickness of the first cutting part 24, the smaller the strength of the composite tool 100, but the larger the chip space.
[0053] Therefore, by setting the core thickness of the first cutting part 24 to the above range, it is possible to provide a larger chip space while ensuring the strength of the composite tool 100, making the milling process smoother.
[0054] Since the first cutting part 24 has an end blade 241, the core thickness of the first cutting part 24 is set to 40%D~45%D.
[0055] like Figure 5 As shown, in some embodiments, the second cutting portion 25 further includes a third side cutting edge 253 for planar milling, wherein the first side cutting edge 251 and the second side cutting edge 252 are spaced apart along the direction from the first end 21 to the second end 22 to form the third side cutting edge 253 between them.
[0056] Specifically, the first side cutting edge 251 and the second side cutting edge 252 are arranged sequentially along the axial direction of the cutter head 20, and the contours of the first side cutting edge 251 and the second side cutting edge 252 are different. Thus, the first side cutting edge 251 and the second side cutting edge 252 can process the workpiece separately and form different contours respectively.
[0057] The first side cutting edge 251 and the second side cutting edge 252 can perform contour milling on different workpieces or different positions of workpieces simultaneously, or they can perform contour milling on different workpieces or different positions of workpieces sequentially.
[0058] Furthermore, the third side cutting edge 253 formed between the first side cutting edge 251 and the second side cutting edge 252 can be used for planar milling of the side surface of the product. Since the third side cutting edge 253 and the end cutting edge 241 cooperate with each other, planar milling can be performed on the end face and the side surface of the product respectively.
[0059] With the above structure, the first side cutting edge 251 and the second side cutting edge 252 can enable the composite tool 100 to process different contours at the same time, while the third side cutting edge 253 can realize the planar milling of the side of the product. In other words, the second cutting part 25 can perform planar milling and contour milling on the product at the same time, which can effectively improve work efficiency and reduce processing costs.
[0060] In some embodiments, the first cutting portion 24 includes three end blades 241; the second cutting portion 25 includes three, each of the second cutting portions 25 including a first side blade 251 and a second side blade 252, the second cutting portions 25 are evenly spaced along the circumference of the cutter head 20, and each second cutting portion 25 corresponds to each end blade 241.
[0061] A first side cutting edge 251 and a second side cutting edge 252 form a second cutting part 25, and each second cutting part 25 is connected to a corresponding end cutting edge 241, thereby making the overall structure of the cutter head 20 more stable.
[0062] In some embodiments, a chip groove 242 is formed between each pair of adjacent end blades 241, and a spiral groove 254 is formed between each pair of adjacent first cutting portions 24, with each spiral groove 254 communicating with the corresponding chip groove 242.
[0063] A chip groove 242 is formed between every two adjacent end edges 241, that is, a total of three chip grooves 242 are formed. A spiral groove 254 is formed between every two adjacent first cutting portions 24, that is, a total of three spiral grooves 254 are formed. Each spiral groove 254 is interconnected with a corresponding chip groove 242.
[0064] Therefore, the chip groove 242 and the spiral groove 254 can cooperate with each other to provide a larger chip space during the machining process, making the machining process smoother.
[0065] In some embodiments, the cutting head 20 and the shank 10 are integrally formed. This can further improve the overall structural strength of the composite cutting tool 100.
[0066] In some embodiments, the cross-sectional diameter of the tool holder 10 is 12 mm. Specifically, the tool holder 10 is configured as a cylindrical structure, and the tool holder 10 is coaxially arranged with the tool head 20. Thus, the cross-sectional diameter of the tool holder 10 is the same as the radial diameter of the tool holder 10.
[0067] Setting the cross-sectional diameter of the handle 10 to 12mm not only improves the strength of the handle 10 and provides better support for the blade head 20, but also facilitates fixing or connecting.
[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A composite cutting tool, characterized in that, include: Handle; The cutting head has a first end and a second end disposed opposite to each other and a circumferential surface connected between the first end and the second end. The first end is connected to the tool holder. The second end is provided with a first cutting part for planar milling. The circumferential surface is provided with a second cutting part. The second cutting part includes a first side cutting edge and a second side cutting edge for contour milling, respectively.
2. The composite cutting tool according to claim 1, characterized in that, The first cutting part includes three end blades, each of which is evenly spaced along the circumference of the second end.
3. The composite cutting tool according to claim 2, characterized in that, The rake angle of the tool formed by all the end edges is in the range of 2° to 4°.
4. The composite cutting tool according to claim 2, characterized in that, A chip groove is formed between each pair of adjacent end edges.
5. The composite cutting tool according to any one of claims 1-4, characterized in that, The diameter of the cutter head is D, and the core thickness of the first cutting part ranges from 40%D to 45%D.
6. The composite cutting tool according to any one of claims 1-4, characterized in that, The second cutting portion further includes a third side cutting edge for planar milling, wherein the first side cutting edge and the second side cutting edge are spaced apart along the direction from the first end to the second end, so as to form the third side cutting edge between the two.
7. The composite cutting tool according to claim 6, characterized in that, The first cutting part includes three end edges; the second cutting part includes three, each of the second cutting parts including one first side edge and one second side edge, the second cutting parts are evenly spaced along the circumference of the cutter head, and each second cutting part corresponds to each end edge.
8. The composite cutting tool according to claim 7, characterized in that, A chip-receiving groove is formed between every two adjacent end edges, and a spiral groove is formed between every two adjacent second cutting portions, with each spiral groove communicating with the corresponding chip-receiving groove.
9. The composite cutting tool according to claim 1, characterized in that, The blade head and the handle are integrally formed.
10. The composite cutting tool according to claim 1 or 9, characterized in that, The diameter of the cross-section of the tool holder is 12mm.