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KR-20260067929-A - CUTTING TOOL INCLUDING CUTTING EDGE

KR20260067929AKR 20260067929 AKR20260067929 AKR 20260067929AKR-20260067929-A

Abstract

The present disclosure relates to a cutting tool. According to one embodiment of the present disclosure, a cutting tool configured to rotate along a ring-shaped structure with the center of the ring-shaped structure as an axis for cutting a ring-shaped structure may be a cutting tool comprising a third cutting edge and a fourth cutting edge for cutting a cutting surface between the edge of the outer circumference and the edge of the inner circumference of the ring-shaped structure, wherein the third cutting edge is configured to form a first circular pattern composed of a plurality of concentric circles on the cutting surface, and the fourth cutting edge is configured to form a second circular pattern composed of a plurality of concentric circles having the same center as the center of the first circular pattern and not overlapping with the first circular pattern on the cutting surface in order to facilitate the discharge of a cutting piece by cutting.

Inventors

  • 이현민
  • 박천
  • 서준호
  • 홍석영

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260513
Application Date
20241111
Priority Date
20241106

Claims (20)

  1. In a cutting tool (100) configured to rotate along the ring-shaped structure (10) with the center of the ring-shaped structure (10) as an axis for cutting the ring-shaped structure (10), It includes a third cutting edge (133) and a fourth cutting edge (134) for cutting a cutting surface (13) between the edge of the outer surface (11) and the edge of the inner surface (12) of the ring-shaped structure (10), and The third cutting edge (133) is configured to form a first circular pattern (P1) composed of a plurality of concentric circles on the cutting surface (13), and The cutting tool is configured such that the fourth cutting edge (134) has a center identical to the center of the first circular pattern (P1) and is composed of a plurality of concentric circles that do not overlap with the first circular pattern (P1), in order to facilitate the discharge of cutting pieces by cutting.
  2. In Article 1, A first cutting edge (131) for cutting the edge of the outer surface (11) of the ring-shaped structure; and A cutting tool further comprising a second cutting edge (132) for cutting the edge of the inner surface (12) of the ring-shaped structure.
  3. In Article 1 or Article 2, The above-mentioned fourth cutting edge (134) is a cutting tool configured such that the concentric circles of the second circular pattern (P2) intersect with the concentric circles of the first circular pattern (P1) between two adjacent concentric circles of the first circular pattern (P1).
  4. In any one of paragraphs 1 to 3, The third cutting blade (133) is configured to form a first discharge space (A1), which is a space for discharging cutting fragments caused by cutting, between the third cutting blade (133) and the cutting surface (13). The above-mentioned fourth cutting blade (134) is configured to form a second discharge space (A2), which is a space for discharging cutting fragments caused by cutting, between the fourth cutting blade (134) and the cutting surface (13). A cutting tool, wherein the first discharge space (A1) is formed at an intersection with the second discharge space (A2).
  5. In any one of paragraphs 1 to 4, The cutting surface (13) is substantially perpendicular to the direction in which the cutting tool (100) is extended.
  6. In any one of paragraphs 1 to 5, The first cutting edge (131) is a cutting tool configured to cut the edge of the outer surface (11) into an R shape when the ring-shaped structure (10) is viewed from a direction perpendicular to the center axis of the ring-shaped structure (10).
  7. In any one of paragraphs 1 to 6, The second cutting edge (132) is a cutting tool configured to cut the edge of the inner surface (12) into a C shape when the ring-shaped structure (10) is viewed from a direction perpendicular to the center axis of the ring-shaped structure (10).
  8. In any one of paragraphs 1 to 7, A cylindrical shaft (110) formed by extending in the longitudinal direction of the cutting tool; The cutting tool body (120) in the shape of a cylinder is formed extending from one end of the shaft (110), has a center axis that is the same as the center axis passing through the shaft (110), and has a wider diameter than the shaft. The above cutting tool body (120) includes a plurality of cutting piece receiving portions (121) symmetrically configured with respect to the central axis of the cutting tool body (120), and The first cutting edge (131), the second cutting edge (132), the third cutting edge (133), and the fourth cutting edge (134) are cutting tools disposed inside the cutting piece receiving portion (121).
  9. In any one of paragraphs 1 through 8, The first cutting edge (131) is positioned at the edge of the central axis of the cutting tool body (120), and The second cutting edge (132) is positioned at a location relatively adjacent to the center axis of the cutting tool body (120) compared to the first cutting edge (131), and The third cutting edge (133) and the fourth cutting edge (134) are positioned at a distance greater than the distance between the first cutting edge (131) and the center axis of the cutting tool body (120), and The cutting tool, wherein the third cutting edge (133) and the fourth cutting edge (134) are positioned closer than the distance between the second cutting edge (132) and the center axis of the cutting tool body (120).
  10. In any one of paragraphs 1 through 9, A cutting tool in which the cutting piece discharged into the first discharge space (A1) and the second discharge space (A2) is transferred to the cutting piece receiving portion (121).
  11. In any one of Articles 1 to 10, The above cutting tool (100) is a cutting tool comprising an MCD material.
  12. In any one of paragraphs 1 to 11, The above ring-shaped structure (10) is a cutting tool configured to surround the outer surface of the camera module of the electronic device.
  13. In any one of paragraphs 1 to 12, At least one holder; and A cutting tool according to claims 1 to 12, comprising A milling machine in which the above cutting tool is coupled to one end of the holder to cut a ring-shaped structure.
  14. In a milling machine (200) configured to rotate around the center of a ring-shaped structure (10) as an axis for cutting a ring-shaped structure (10); A cutting tool (100) configured to rotate along the above ring-shaped structure (10); and It includes a holder for fixing the above cutting tool (100) to a milling machine (200), and The above cutting tool (100) is, A first cutting edge (131) for cutting the edge of the outer surface (11) of the above ring-shaped structure; A second cutting blade (132) for cutting the edge of the inner surface (12) of the above ring-shaped structure; It includes a third cutting edge (133) and a fourth cutting edge (134) for cutting a cutting surface (13) between the edge of the outer surface (11) and the edge of the inner surface (12) of the ring-shaped structure (10), and The third cutting edge (133) is configured to form a first circular pattern (P1) composed of a plurality of concentric circles on the cutting surface (13), and A milling machine configured such that the fourth cutting edge (134) is configured to form a second circular pattern (P2) on the cutting surface (13), which has the same center as the center of the first circular pattern (P1) and does not overlap with the first circular pattern (P1), in order to facilitate the discharge of cutting pieces by cutting.
  15. In Article 14, A milling machine in which the concentric circles of the second circular pattern (P2) are formed by intersecting the concentric circles of the first circular pattern (P1) between two adjacent concentric circles of the first circular pattern (P1).
  16. In Article 14 or Article 15, A first discharge space (A1) which is a space between the third cutting blade (133) and the cutting surface (13) where cutting fragments are discharged by cutting; and It includes a second discharge space (A2) between the fourth cutting blade (134) and the cutting surface (13), which is a space for discharging cutting fragments caused by cutting, and A milling machine in which the first discharge space (A1) is formed at an intersection with the second discharge space (A2).
  17. In any one of paragraphs 14 through 16, The first cutting blade (131) is configured to cut the edge of the outer surface (11) into an R shape when the ring-shaped structure (10) is viewed from a direction perpendicular to the center axis of the ring-shaped structure (10), and A milling machine configured such that the second cutting edge (132) cuts the edge of the inner surface (12) into a C shape when the ring-shaped structure (10) is viewed from a direction perpendicular to the center axis of the ring-shaped structure (10).
  18. In a method for manufacturing a ring-shaped structure, A process of providing a cutting tool including multiple cutting edges to a milling machine; and The process includes rotating the milling machine to machine a ring-shaped structure through the cutting tool, and A method for manufacturing a ring-shaped structure, wherein the outer edge of the ring-shaped structure is machined into a first shape by the rotation of a milling machine, the inner edge is machined into a second shape different from the first shape, and the cutting surface between the outer and inner surfaces is formed into a circular pattern when viewed from above.
  19. In Article 18, The above circular pattern is formed by the third cutting edge and the fourth cutting edge, and The third cutting edge is configured to form a first circular pattern composed of a plurality of concentric circles on the cutting surface, and A method for manufacturing a ring-shaped structure, wherein the fourth cutting edge is configured to form a second circular pattern on the cutting surface, the second circular pattern having the same center as the center of the first circular pattern and not overlapping with the first circular pattern (P1), in order to facilitate the discharge of cutting pieces by cutting.
  20. In Article 18 or 19, A method for manufacturing a ring-shaped structure in which the concentric circles of the second circular pattern are formed by intersecting the concentric circles of the first circular pattern between two adjacent concentric circles of the first circular pattern.

Description

Cutting tool including a cutting edge The embodiments of the present disclosure relate to a cutting tool, for example, a cutting tool comprising a plurality of cutting edges. Driven by the remarkable advancements in information and communication technology and semiconductor technology, the distribution and use of various electronic devices are increasing rapidly. In particular, recent electronic devices are being developed to enable portable communication. The term "electronic device" refers to a device that performs specific functions according to an installed program, ranging from home appliances to electronic notebooks, portable multimedia players, mobile communication terminals, tablet PCs, video/audio devices, desktop/laptop computers, and in-car navigation systems. For example, these electronic devices can output stored information as sound or video. As the integration density of electronic devices increases and ultra-high-speed, high-capacity wireless communication becomes commonplace, various functions can recently be integrated into a single electronic device, such as a mobile communication terminal. For instance, not only communication functions but also entertainment functions like games, multimedia functions like music/video playback, communication and security functions like mobile banking, and functions such as schedule management or electronic wallets are being integrated into a single electronic device. As these electronic devices are released in various sizes depending on their functions and user preferences, attention has been paid not only to the functionality and slimness of the devices but also to their external aesthetics. Even if they generally possess the same functions as devices from other companies, devices with superior and aesthetic designs are preferred by users. Therefore, technologies are being developed to improve the aesthetics of related electronic devices. These technologies will serve as a foundation for enhancing the aesthetic competitiveness of electronic devices and securing a competitive edge in the market through differentiated designs. The information described above may be provided as background art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure. The aspects, configurations, and/or advantages described above regarding one embodiment of the present disclosure may become more apparent from the following detailed description with reference to the accompanying drawings. FIG. 1 is a drawing showing a ring-shaped structure according to one embodiment of the present disclosure. FIG. 2 is a schematic diagram showing the relationship between a milling machine and a cutting tool according to one embodiment of the present disclosure. FIG. 3 is a drawing showing a cutting tool according to one embodiment of the present disclosure. FIG. 4 is a schematic diagram showing the process of manufacturing a ring-shaped structure according to a comparative example of the present disclosure. FIG. 5 is a flowchart showing the process of manufacturing a ring-shaped structure according to a comparative example of the present disclosure. FIG. 6 is a cross-sectional view schematically showing a milling machine, a cutting tool, and a ring-shaped structure according to one embodiment of the present disclosure. FIG. 7 is a flowchart illustrating a process for manufacturing a ring-shaped structure according to one embodiment of the present disclosure. FIG. 8 is a cross-sectional view schematically showing a milling machine, a third cutting edge, a fourth cutting edge, and a ring-shaped structure according to one embodiment of the present disclosure. FIG. 9 is a cross-sectional view showing a part of a cutting tool and a ring-shaped structure according to one embodiment of the present disclosure. FIG. 10 is a cross-sectional view showing a part of a cutting tool and a ring-shaped structure according to one embodiment and a comparative example of the present disclosure. FIG. 11 is a schematic diagram showing a part of a cutting tool and a ring-shaped structure according to one embodiment and a comparative example of the present disclosure. FIG. 12 is a drawing showing a circular pattern according to one embodiment of the present disclosure. FIG. 13 is a schematic diagram showing a circular pattern according to one embodiment and comparative example of the present disclosure. Throughout the attached drawings, similar parts, configurations, and/or structures may be assigned similar reference numbers. Recently, in order to differentiate the design of electronic devices, the designs of camera deco parts are also becoming more diverse. The technical approach to design differentiation for camera deco parts is primarily based on CNC machining technology. CNC machining technology refers to a technology that produces precision parts by automatically cont