A stainless steel milling cutter with unequal division of bottom edge and different angles of screw
By using a stainless steel milling cutter with unequal helix angles on the bottom edge, combined with the design of the tool holder and mating ring, the problems of large vibration, poor chip removal, and short life of traditional milling cutters when cutting stainless steel are solved, achieving high precision, high stability, and high efficiency in machining.
Patent Information
- Application Number
- CN202522678240.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-17
AI Technical Summary
Traditional stainless steel milling cutters suffer from problems such as high vibration, poor chip removal, short lifespan, and low efficiency when cutting stainless steel. Furthermore, the traditional structure cannot balance cutting stability and chip removal efficiency.
The tool adopts a structural design with unequal division of the bottom edge spiral at different angles. Combined with the optimization of the isolation ring and docking ring of the tool holder mechanism, it disperses cutting impact, optimizes chip removal performance, reduces heat conduction and corrosion, and improves tool stability and service life.
By dispersing cutting impact, optimizing chip removal performance, broadening the range of cutting parameter adaptation, alleviating work hardening, improving machining accuracy, stability and production efficiency, and extending tool life.
Smart Images
Figure CN224927904U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precision cutting tool technology, and in particular to a stainless steel milling cutter with an unequally divided spiral at different angles on the bottom edge. Background Technology
[0002] In the field of stainless steel processing, stainless steel materials are widely used in many industries such as machinery manufacturing, aerospace, and kitchen and bathroom hardware due to their excellent corrosion resistance, heat resistance and mechanical properties. However, this type of material also has processing difficulties such as high toughness, large plastic deformation, significant work hardening effect, and easy generation of built-up edge during cutting, which puts forward stringent requirements on the cutting performance of milling cutters. Traditional stainless steel milling cutters generally adopt a structure with an evenly divided bottom edge body and a uniform helix angle. While this design is convenient for manufacturing, it cannot adapt to the machining characteristics of stainless steel. On the one hand, the evenly divided bottom edge body easily generates synchronous cutting impact during cutting, resulting in concentrated cutting force and large fluctuations, causing tool chatter. This not only damages the flatness and dimensional accuracy of the machined surface but also accelerates the micro-chipping and wear of the cutting edge. On the other hand, a uniform helix angle makes it difficult to balance chip removal efficiency and cutting stability. If the helix angle is too small, the chip removal channel is narrow and chips are easily wrapped around the tool. If the helix angle is too large, it will reduce the rigidity of the cutter teeth, aggravate tool deformation, and further shorten the tool life. Therefore, we propose a stainless steel milling cutter with an unequally divided bottom edge helix angle. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a stainless steel milling cutter with unequal division of the bottom edge and different helical angles. By setting the bottom edge body with unequal division and different helical angles, the cutting impact can be dispersed and the chip removal performance can be optimized, thereby improving the machining stability and production efficiency.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: A stainless steel milling cutter with unequally divided helical angles on the bottom edge includes a tool holder mechanism, a tool head mechanism is provided at the front end of the tool holder mechanism, and a docking mechanism is provided on the left side of the outer end of the tool holder mechanism. The cutting head mechanism includes a cutting head body, with a cutting edge on the outer side of the outer end of the cutting head body, a separator on the front side of the outer end of the cutting head body, a chip removal groove on the inner side of the outer end of the cutting head body, a bottom cutting edge on the front edge side of the cutting head body, and a secondary cutting edge in the middle of the front end of the cutting head body. By setting the bottom cutting edge body with unequal division and different helix angles, the cutting impact can be dispersed, chip removal performance optimized, tool wear balanced, cutting parameter adaptation range widened, and work hardening alleviated. This effectively solves the pain points of traditional milling cutters when machining stainless steel, such as large vibration, poor chip removal, short life, and low efficiency, and comprehensively improves machining accuracy, stability, and production efficiency.
[0005] Furthermore, the tool holder mechanism includes a tool holder body, an isolation ring at the front end of the tool holder body, and a shank tail at the end of the tool holder body. The isolation ring at the front end of the tool holder body separates the cutting area from the main body of the tool holder body, reducing the conduction of cutting heat to the tool holder body and protecting the tool holder body from corrosion by chips and coolant. The shank tail at the end of the tool holder body optimizes the connection and compatibility with the spindle, improves clamping stability and transmission accuracy, and ensures the reliability and service life of the milling cutter during the overall machining process.
[0006] Furthermore, the docking mechanism includes a docking ring, and a slot is provided in the middle of the outer end of the docking ring. By providing a slot in the middle of the outer end of the docking ring, the positioning accuracy of the docking ring and the adapter can be optimized, the fit and locking stability during assembly can be improved, and the force application during assembly and disassembly can be facilitated, ensuring the reliability of the connection of each component of the milling cutter and the ease of assembly and disassembly.
[0007] Furthermore, the cutter head body is located at the front end of the isolation ring. By setting the cutter head body at the front end of the isolation ring, the cutting area of the cutter head and the tool holder body can be physically separated by the isolation ring, blocking the heat generated during the cutting process from being conducted to the tool holder body. At the same time, it prevents cutting chips and coolant from directly contacting the tool holder body, reducing thermal deformation and corrosion loss of the tool body, ensuring the positioning accuracy of the cutter head body during cutting, and improving the overall machining stability and service life of the milling cutter.
[0008] Furthermore, the docking ring is located on the left side of the outer end of the tool holder body.
[0009] Furthermore, the cutting edge and the chip removal groove are arranged in a spiral alternating pattern.
[0010] Furthermore, the slot has a concave structure.
[0011] Furthermore, the cutting edge is provided with a sharp corner protection.
[0012] Furthermore, the back angle of the bottom edge body is set to 7°, and the rotation angle of the bottom edge body is a gradual change of 20-25° that is not equally divided.
[0013] In summary, this utility model has the following beneficial effects: 1. By designing a structure with unequal division of the bottom cutting edge body and different helix angles, the cutting impact can be dispersed, chip removal performance optimized, tool wear balanced, cutting parameter adaptation range widened, and work hardening alleviated. This specifically addresses the pain points of traditional milling cutters when machining stainless steel, such as large vibration, poor chip removal, short life, and low efficiency, comprehensively improving machining accuracy, stability, and production efficiency. The isolation ring at the front end of the tool holder body separates the cutting area from the main body, reducing the conduction of cutting heat to the tool holder body and protecting it from corrosion by chips and coolant. The shank tail at the end of the tool holder body optimizes the connection compatibility with the spindle, improving clamping stability and transmission accuracy, thus ensuring the reliability and service life of the milling cutter during machining. 2. By setting a slot in the middle of the outer end of the docking ring, the positioning accuracy of the docking ring and the adapter component can be optimized, improving the fit and locking stability during assembly. At the same time, it facilitates the force application during assembly and disassembly, ensuring the reliability of the connection of each component of the milling cutter and the convenience of disassembly and assembly. By setting the cutter head body at the front end of the isolation ring, the isolation ring can form a physical separation between the cutting area of the cutter head and the cutter shank body, blocking the heat generated during the cutting process from being conducted to the cutter shank body. At the same time, it prevents cutting chips and coolant from directly contacting the cutter shank body, reducing the thermal deformation and corrosion wear of the cutter body, ensuring the positioning accuracy of the cutter head body during cutting, and improving the overall machining stability and service life of the milling cutter. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure in this embodiment; Figure 2 This is a three-dimensional structural diagram of the tool holder mechanism in this embodiment; Figure 3 This is a three-dimensional structural diagram of the cutter head mechanism in this embodiment; Figure 4 This is a three-dimensional structural diagram of the docking mechanism in this embodiment; Figure 5 This is a partial planar structural diagram of the cutter head mechanism in this embodiment.
[0015] In the figure, 1 is the handle mechanism; 101 is the handle body; 102 is the isolation ring; 103 is the shank tail; 2 is the head mechanism; 201 is the head body; 202 is the cutting edge; 203 is the separator; 204 is the chip removal groove; 205 is the bottom cutting edge body; 206 is the secondary cutting edge; 3 is the docking mechanism; 301 is the docking ring; 302 is the slot. Detailed Implementation
[0016] The present invention will be further described in detail below with reference to the accompanying drawings.
[0017] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.
[0018] Reference Figure 1-5 As shown, a stainless steel milling cutter with unequally divided helical angles at the bottom edge is provided in a preferred embodiment of the present invention. It includes a tool holder mechanism 1, a tool head mechanism 2 is provided at the front end of the tool holder mechanism 1, and a docking mechanism 3 is provided on the left side of the outer end of the tool holder mechanism 1. The cutting head mechanism 2 includes a cutting head body 201. A cutting edge 202 is provided on the outer side of the outer end of the cutting head body 201. A separator 203 is provided on the front side of the outer end of the cutting head body 201. A chip removal groove 204 is provided on the inner side of the outer end of the cutting head body 201. A bottom cutting edge body 205 is provided on the front edge side of the cutting head body 201. A secondary cutting edge 206 is provided in the middle of the front edge of the cutting head body 201. The cutting edge 202 and the chip removal groove 204 are spirally interleaved. The front end of the cutting edge 202 is protected with a sharp corner. The back angle of the bottom cutting edge body 205 is set to 7°. The rotation angle of the bottom cutting edge body 205 is a gradual change from 20° to 25°, but not an equal division. The spirally interleaved distribution of the cutting edge 202 and the chip removal groove 204 optimizes the chip discharge path and avoids chip entanglement. The sharp corner protection at the tip of the cutting edge 202 enhances the impact resistance of the cutting edge and reduces chipping. The 7° clearance angle of the bottom cutting edge body 205 balances cutting sharpness and edge rigidity. The 20-25° non-equally divided gradual rotation angle disperses cutting impact and alleviates machining vibration. The overall design is adapted to the machining characteristics of stainless steel, improving the cutting stability, edge durability, and surface finish of the milling cutter. By setting the bottom cutting edge body 205 with unequal division and different helix angles, the design can disperse cutting impact, optimize chip removal performance, balance tool wear, broaden the range of cutting parameters, and alleviate work hardening. It specifically addresses the pain points of traditional milling cutters when machining stainless steel, such as large vibration, poor chip removal, short life, and low efficiency, and comprehensively improves machining accuracy, stability, and production efficiency.
[0019] Reference Figure 1-2 As shown, the tool holder mechanism 1 includes a tool holder body 101. An isolation ring 102 is provided at the front end of the tool holder body 101, and a shank tail 103 is provided at the end of the tool holder body 101. By providing the isolation ring 102 at the front end of the tool holder body 101, the cutting area can be separated from the main body of the tool holder body 101, reducing the conduction of cutting heat to the tool holder body 101 and protecting the tool holder body 101 from the corrosion of chips and coolant. The shank tail 103 at the end of the tool holder body 101 can optimize the connection and compatibility with the spindle, improve the clamping stability and transmission accuracy, and ensure the reliability and service life of the milling cutter during the overall machining process.
[0020] Reference Figure 1-4As shown, the docking mechanism 3 includes a docking ring 301. A groove 302 is provided in the middle of the outer end of the docking ring 301. The docking ring 301 is located on the left side of the outer end of the tool holder body 101. The groove 302 has an inward concave structure. By setting the groove 302 in the middle of the outer end of the docking ring 301, the positioning accuracy of the docking ring 301 and the adapter can be optimized, the fit and locking stability during assembly can be improved, and the force operation during assembly and disassembly can be facilitated, ensuring the reliability of the connection of each component of the milling cutter and the convenience of disassembly and assembly.
[0021] Reference Figure 2-5 As shown, the cutter head body 201 is located at the front end of the isolation ring 102. By setting the cutter head body 201 at the front end of the isolation ring 102, the isolation ring 102 can form a physical separation between the cutting area of the cutter head and the tool holder body 101, blocking the heat generated during the cutting process from being conducted to the tool holder body 101. At the same time, it prevents cutting chips and coolant from directly contacting the tool holder body 101, reducing the thermal deformation and corrosion loss of the tool body, ensuring the positioning accuracy of the cutter head body 201 during cutting, and improving the overall machining stability and service life of the milling cutter.
[0022] Specific implementation process: In use, firstly, the shank 103 is clamped to the machine tool spindle. The groove 302 at the middle of the outer end of the docking ring 301 is used to complete the precise docking and locking with the adapter component, ensuring clamping stability and transmission accuracy. Then, the machine tool drives the milling cutter to rotate. The bottom cutting edge 205 on the front side of the cutter head body 201, the secondary cutting edge 206 in the middle of the front end, and the cutting edge 202 with sharp corner protection on the outer side of the outer end work together to cut the stainless steel workpiece. During the cutting process, the spirally distributed cutting edges 202 and the chip removal groove 204 optimize the chip discharge path and avoid chip entanglement. At the same time, the isolation ring 102 forms a physical separation between the cutting area of the cutter head and the cutter head body 101, blocking the conduction of cutting heat to the cutter head body 101, and preventing chips and coolant from directly contacting the cutter head body 101, reducing its thermal deformation and corrosion loss. Finally, high-precision and high-stability cutting of stainless steel workpieces is achieved, and the overall service life of the milling cutter is effectively extended.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A stainless steel milling cutter with unequally divided helical angles on the bottom edge, characterized in that: It includes a tool holder mechanism (1), a tool head mechanism (2) is provided at the front end of the tool holder mechanism (1), and a docking mechanism (3) is provided on the left side of the outer end of the tool holder mechanism (1). The cutting head mechanism (2) includes a cutting head body (201), a cutting edge (202) is provided on the outer side of the outer end of the cutting head body (201), a separator (203) is provided on the front side of the outer end of the cutting head body (201), a chip removal groove (204) is provided on the inner side of the outer end of the cutting head body (201), a bottom cutting edge body (205) is provided on the front edge side of the cutting head body (201), and a secondary cutting edge (206) is provided in the middle of the front end of the cutting head body (201).
2. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 1, characterized in that: The handle mechanism (1) includes a handle body (101), with an isolation ring (102) at the front end of the handle body (101) and a handle tail (103) at the end of the handle body (101).
3. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 2, characterized in that: The docking mechanism (3) includes a docking ring (301), and a slot (302) is provided at the middle of the outer end of the docking ring (301).
4. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 2, characterized in that: The cutter head body (201) is located at the front end of the isolation ring (102).
5. A stainless steel milling cutter with unequally divided helical angles on the bottom cutting edge according to claim 3, characterized in that: The docking ring (301) is located on the left side of the outer end of the handle body (101).
6. A stainless steel milling cutter with unequally divided helical angles on the bottom cutting edge according to claim 1, characterized in that: The cutting edge (202) and the chip removal groove (204) are spirally interwoven.
7. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 3, characterized in that: The slot (302) has a concave structure.
8. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 1, characterized in that: The blade (202) has a sharp corner protection at the front end.
9. A stainless steel milling cutter with unequally divided helical angles on the bottom edge according to claim 2, characterized in that: The back angle of the bottom edge body (205) is set to 7°, and the rotation angle of the bottom edge body (205) is a gradual change of 20-25° and a non-equal division.