CN118635545B - Cutting blade capable of realizing stable installation - Google Patents
Cutting blade capable of realizing stable installation Download PDFInfo
- Publication number
- CN118635545B CN118635545B CN202411132232.2A CN202411132232A CN118635545B CN 118635545 B CN118635545 B CN 118635545B CN 202411132232 A CN202411132232 A CN 202411132232A CN 118635545 B CN118635545 B CN 118635545B
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- China
- Prior art keywords
- main
- main side
- stably installed
- cutting
- cutting edge
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- 238000009434 installation Methods 0.000 title abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000008093 supporting effect Effects 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Milling Processes (AREA)
Abstract
本发明提供一种能够实现稳定安装的切削刀片，包括相对设置的上表面和下表面，以及连接上表面和下表面的侧面；所述侧面包括第一侧表面，第一侧表面具有与下表面连接的主侧面；主侧面包括横向并列依次设置的、均呈凹曲面形状的主侧面A、过渡面和主侧面B，所述主侧面A具有曲率半径RA’，主侧面B具有曲率半径RB’。本发明的目的在于克服现有技术的缺陷，解决切削刀片侧表面接近底面部位的翘曲变形，对切削刀片的侧表面与刀座支撑表面之间会造成干扰，引起安装接触受压位置下移不牢靠的问题。
The present invention provides a cutting blade capable of being stably installed, comprising an upper surface and a lower surface arranged opposite to each other, and a side surface connecting the upper surface and the lower surface; the side surface comprises a first side surface, the first side surface having a main side surface connected to the lower surface; the main side surface comprises a main side surface A, a transition surface and a main side surface B arranged in a transverse parallel manner, all of which are concave curved surfaces, the main side surface A has a curvature radius RA', and the main side surface B has a curvature radius RB'. The purpose of the present invention is to overcome the defects of the prior art, solve the problem that the warping deformation of the side surface of the cutting blade close to the bottom surface will cause interference between the side surface of the cutting blade and the support surface of the seat, causing the installation contact pressure position to move downward unreliably.
Description
Technical Field
The present invention relates to a cutting tool, and more particularly, to a cutting insert capable of achieving stable mounting.
Background
Cutting inserts are usually manufactured by pressing a cutting material to form a powder, which is given the desired basic shape and size, but in which case the hardness is still far from standard, and hardening the pressed insert by a sintering process. However, in the sintering process, the shrinkage of the cutting blade cannot be absolutely regulated, so that the surface of the cutting blade can generate fine convex deformation, and the precision requirement of the cutting blade cannot be met.
Although the precision requirements of the insert may then be increased by subjecting the insert to a surface treatment, such as grinding, this may alter the surface structure of the cutting insert, reducing the strength of the cutting insert, while increasing the cost.
In order to enhance the accuracy and stability of abutment between the cutting insert and the cutting tool without decreasing the strength of the cutting insert, it is common to design a portion with a recess on the side surface of the cutting insert and grind the side surface of the cutting insert to achieve flatness, as in U.S. patent No. 6142716a. However, in the conventional cutting inserts, the warp deformation of the side surface of the cutting insert near the bottom surface is not considered, and interference is caused between the side surface of the cutting insert and the holder support surface, resulting in a weak downward movement of the mounting contact pressed position.
Disclosure of Invention
Based on the above, the invention aims to overcome the defects of the prior art and solve the problems that the side surface of the cutting blade is close to the bottom surface and the deformation of the side surface of the cutting blade causes interference between the side surface of the cutting blade and the supporting surface of the tool holder, so that the mounting contact pressed position is not firmly moved downwards.
A cutting insert capable of achieving stable mounting, comprising:
Comprises an upper surface and a lower surface which are oppositely arranged, and a side surface connecting the upper surface and the lower surface; the side surface includes a first side surface having a major side surface connected to a lower surface; the main side surface comprises a main side surface A, a transition surface and a main side surface B which are transversely arranged in parallel and sequentially and are in a concave curved surface shape, wherein the main side surface A has a curvature radius RA ', and the main side surface B has a curvature radius RB'.
Further, the radius of curvature of the main side a is the same as or different from the radius of curvature of the main side B, i.e., RA '=rb' or RA '+.rb'.
Further, the transition surface has a radius of curvature RC, wherein RC < RA '=rb', or RC < RA 'and RC < RB' and RA '+.rb'; the whole main side surface is a smooth concave curved surface.
Further, the side surface further comprises a second side surface, and the first side surface and the second side surface are connected through a cylindrical connecting surface.
Further, the first side surface, the second side surface and the cylindrical connecting surface intersect the upper surface to form a main cutting edge, a minor cutting edge and an angular cutting edge, respectively.
Further, the first side surface is provided with a spacing surface connected with the upper surface, and the spacing surface is intersected with the upper surface to form a main cutting edge; in the cross-sectional view, the angle between the spacing surface and the lower surface is smaller than the angle between the main side surface and the lower surface.
Further, the spacing surface extends in the direction of the main cutting edge and gradually narrows in width.
Further, the spacer surface is outwardly convex relative to the major side surface.
Further, the main cutting edge is convex arc-shaped when seen from the normal direction of the upper surface.
Further, a fastening hole penetrating the upper surface and the lower surface is further included.
Compared with the prior art, the application has the advantages that: according to the cutting insert, the concave curved transition surface is arranged in the middle of the main side surface, the main side surface A and the main side surface B are separated through the concave curved transition surface, the main side surface A and the main side surface B are concave curved surfaces with curved radii, convex deformation during sintering can be counteracted by utilizing the concave shape during pressing, two supporting surfaces which are smoother, are more tightly connected with the adjacent surfaces and have better supporting effects are obtained, unstable supporting positions caused by large-area deformation of the main side surface after sintering can be effectively prevented, and the service life of the cutting insert is prevented from being reduced.
Drawings
Fig. 1 is a schematic perspective view showing a cutting insert capable of achieving stable mounting according to an embodiment of the present application.
Fig. 2 is a schematic side view of a cutting insert capable of achieving stable mounting according to an embodiment of the present application.
Fig. 3 is a schematic side view of another angle of a cutting insert capable of achieving stable mounting according to an embodiment of the present application.
Fig. 4 is a schematic top view of a cutting insert capable of achieving stable mounting according to an embodiment of the present application.
Fig. 5 is a schematic bottom view of a cutting insert capable of achieving stable installation according to an embodiment of the present application.
Fig. 6 is a schematic cross-sectional view of fig. 5 taken along G-G.
Fig. 7 is a schematic cross-sectional view of fig. 5 along E-E.
Fig. 8 is a schematic cross-sectional view of fig. 7 taken along F-F.
Wherein: 1. an upper surface; 2. a lower surface; 3. a first side surface; 4. a second side surface; 5. a cylindrical connecting surface; 6. a spacer surface; 7. a fastening hole; 8. a main cutting edge; 9. a minor cutting edge; 10. an angle cutting edge; 301. a main side A; 302. a main side B; 303. a transition surface; n, central axis.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
Referring to fig. 1 to 8, as an embodiment, the present application provides a cutting insert capable of achieving stable mounting, including an upper surface 1 and a lower surface 2 disposed opposite to each other, and a side surface connecting the upper surface 1 and the lower surface 2 and a fastening hole 7 penetrating the upper surface 1 and the lower surface 2.
The fastener is used for fixing the cutting blade on the tool holder through the fastening hole; preferably, the fastener is a fastening screw.
The upper surface 1 and the lower surface 2 are approximately rectangular or parallelogram, wherein the side surfaces between the long sides of the upper surface 1 and the lower surface 2 are a pair of oppositely arranged first side surfaces 3, and the side surfaces between the short sides of the upper surface 1 and the lower surface 2 are a pair of oppositely arranged second side surfaces 4.
The first side surface 3 comprises a spacing surface 6, a main side surface a301, a main side surface B302 and a transition surface 303, wherein the spacing surface 6 is located at the upper part of the first side surface 3 and is connected with the upper surface 1; the main side surface A301, the transition surface 303 and the main side surface B302 are sequentially and transversely concave curved surfaces, are arranged at the lower part of the spacing surface in parallel, and are respectively connected with the lower surface 2 and the spacing surface 6; the transition face 303 separates the major side a301 and the major side B302 from each other.
In the first embodiment, the main side a301 has a radius of curvature RA ', the main side B302 has a radius of curvature RB', RA '=rb', and the transition surface has a radius of curvature RC, RC being smaller than RA 'or RB', as seen from the normal direction of the upper surface 1, to prevent the main side from interfering with the insert pocket.
As shown in fig. 8, the main side surface is recessed entirely toward the center of the cutting insert as seen from the normal direction of the upper surface 1.
The angle between the first side surface 3 and the lower surface 2 is an obtuse angle.
The first side surface 3 and the second side surface 4 are connected by a cylindrical connecting surface 5.
The upper surface 1 intersects the clearance surface 6 to form a main cutting edge 8, the second side surface 4 intersects the upper surface 1 to form a minor cutting edge 9, and the cylindrical land 5 intersects the upper surface 1 to form an angular cutting edge 10.
In the second embodiment, RA '=rb', or RA '+.rb', the transition surface has a radius of curvature RC smaller than the radius of curvature RA ', RC also smaller than the radius of curvature RB'.
In the third embodiment, as shown in fig. 6 and 7, the main side a301 and the main side B302 have radii of curvature RA and RB, respectively, when the cross section of the first side surface 3 is viewed from the direction of the second side surface 4. Ra=rb or ra++rb is sufficient to prevent primary side a301, primary side B302 from interfering with the blade slot.
In a fourth embodiment, the spacing surface intersects the upper surface to form a main cutting edge; as shown in fig. 6 and 7, in the cross-sectional view, the angles α, α 'of the spacing surfaces and the lower surface are smaller than the angles β, β' of the main side surfaces and the lower surface. The provision of the spacer surface may enhance the strength of the cutting insert.
The spacing surface 6 is convex outwards relative to the main side surface (comprising the main side surface A301 and the main side surface B302) and the transition surface 303, so that less sidewall residue can be obtained, and the effect of improving the surface quality of the workpiece is achieved. Meanwhile, the width of the spacing surface 6 gradually narrows along the direction of the main cutting edge 8 from the junction of the main cutting edge 8 and the corner cutting edge 10, so that the main side surface is ensured to have a large enough supporting area.
In other embodiments, the transition surface 303 may not have a fixed radius of curvature, but instead may be a concave smooth curved surface connecting the major side surface a301 and the major side surface B302.
The main cutting edge has a shape with large curvature radius protruding outwards in an inclined way, as shown in fig. 5, the distance from the middle section of the main cutting edge to the central axis is larger than the distance from the end of the main cutting edge to the central axis, namely L > L1, so that the workpiece can obtain less residual quantity of the side wall, the surface roughness of the workpiece is reduced, the cutting edge can cope with the resistance generated during cutting, the impact of the cutting force on the cutting edge is reduced, and the service life of the cutting edge is prolonged.
In other embodiments, the major side a301, major side B302 have the same radius of curvature and are rotationally symmetric about a certain rotational axis. For example, when RA '=rb', the main side a301, the main side B302 can be regarded as a partial arc surface of one virtual cylinder inner side, respectively, and the main side a301, the main side B302 are rotationally symmetrical about the central axis of the virtual cylinder. For another example, when RA '=rb' and ra=rb, the main side a301 and the main side B302 may be regarded as a partial arc surface of one virtual hyperbolic cooling tower inner side, respectively, and the main side a301 and the main side B302 are rotationally symmetrical about the central axis of the virtual hyperbolic cooling tower.
In other embodiments, in the cross-section shown in fig. 8, the major side a301 and the major side B302 have the same radius of curvature and share the same center. Or the major side a301 and the major side B302 have different radii of curvature, and in cross section, the major side AB radii of curvature are not on the same circle.
The present invention is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411132232.2A CN118635545B (en) | 2024-08-19 | 2024-08-19 | Cutting blade capable of realizing stable installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411132232.2A CN118635545B (en) | 2024-08-19 | 2024-08-19 | Cutting blade capable of realizing stable installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118635545A CN118635545A (en) | 2024-09-13 |
| CN118635545B true CN118635545B (en) | 2024-11-19 |
Family
ID=92661681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411132232.2A Active CN118635545B (en) | 2024-08-19 | 2024-08-19 | Cutting blade capable of realizing stable installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118635545B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315892A (en) * | 1998-09-08 | 2001-10-03 | 塞科机床公司 | Tool and cutting insert for milling |
| CN101623777A (en) * | 2008-07-07 | 2010-01-13 | 山特维克知识产权股份有限公司 | Indexable milling insert |
| CN117680727A (en) * | 2024-02-02 | 2024-03-12 | 赣州澳克泰工具技术有限公司 | Cutting insert and cutting tool |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE508387C2 (en) * | 1993-05-26 | 1998-10-05 | Sandvik Ab | round Cut |
| SE529396C2 (en) * | 2005-12-08 | 2007-07-31 | Sandvik Intellectual Property | Tools and inserts for chip separating machining with secondary tools |
| CN109365843B (en) * | 2018-12-03 | 2020-04-10 | 株洲钻石切削刀具股份有限公司 | Cutting tool |
| CN109365842B (en) * | 2018-12-03 | 2020-05-15 | 株洲钻石切削刀具股份有限公司 | An accurate turning tool |
| CN113399724B (en) * | 2021-04-26 | 2022-05-31 | 厦门金鹭特种合金有限公司 | Fast feed milling blade and milling cutter thereof |
| CN117444292B (en) * | 2023-12-25 | 2024-03-12 | 赣州澳克泰工具技术有限公司 | High-feeding and square shoulder milling blade with polishing function and milling cutter thereof |
-
2024
- 2024-08-19 CN CN202411132232.2A patent/CN118635545B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1315892A (en) * | 1998-09-08 | 2001-10-03 | 塞科机床公司 | Tool and cutting insert for milling |
| CN101623777A (en) * | 2008-07-07 | 2010-01-13 | 山特维克知识产权股份有限公司 | Indexable milling insert |
| CN117680727A (en) * | 2024-02-02 | 2024-03-12 | 赣州澳克泰工具技术有限公司 | Cutting insert and cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118635545A (en) | 2024-09-13 |
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