CN217412580U - Indexable cutting insert for milling cutter - Google Patents
Indexable cutting insert for milling cutter Download PDFInfo
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- CN217412580U CN217412580U CN202220634351.8U CN202220634351U CN217412580U CN 217412580 U CN217412580 U CN 217412580U CN 202220634351 U CN202220634351 U CN 202220634351U CN 217412580 U CN217412580 U CN 217412580U
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- cutting edge
- cutting
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- 238000005520 cutting process Methods 0.000 title claims abstract description 134
- 238000003801 milling Methods 0.000 title claims abstract description 16
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000009499 grossing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an indexable cutting insert for a milling cutter, which has an approximately square basic shape and comprises an upper surface, a bottom surface, a side surface and a plurality of cutting edges; a plurality of said cutting edges formed between an upper surface and a side surface, said side surface including a first side surface and a second side surface, said first side surface including a first planar surface connecting the upper surface and a second planar surface located below; the intersection between the first planar surface and the upper surface forms the main cutting edge, the main cutting edge has the same or substantially the same width adjacent to the first planar surface portion along a region of the main cutting edge in the direction of the corner cutting edge, and the region along the direction of the main cutting edge in the direction of the corner cutting edge forms the same angle with respect to the bottom surface. The cutting insert improves the maximum cutting force which can be borne by the corner and the cutting edge of the cutting insert, and enhances the strength and the service life of the cutting insert.
Description
Technical Field
This patent belongs to the cutting tool field, especially relates to an indexable cutting insert for milling cutter.
Background
In the machining industry, cutting inserts for milling operations are preferably manufactured by form pressing and sintering of insert forming powders. The existing cutting insert comprises an upper surface, a bottom surface, a side surface and a plurality of cutting edges, wherein each main cutting edge is combined with a smoothing cutting edge, the corners, the main cutting edges connected with the corners and the smoothing cutting edges connected with the corners generate the maximum cutting resistance during milling, the corners and the smoothing cutting edges of the cutting insert are thin and cannot provide enough strength to deal with the large cutting resistance, the cutting insert has the risk of side upper interference during milling, meanwhile, the difficulty in producing and manufacturing the cutting insert is brought, the powder flow resistance is enlarged, the production is not facilitated, and the manufacturing cost is increased.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention provides an indexable cutting insert for a milling cutter, which improves the maximum cutting force that the corners and cutting edges of the cutting insert can bear, enhances the strength and durability of the cutting insert, and allows the main cutting edge and the wiper cutting edge to be combined firmly and easily.
The present patent solution provides an indexable cutting insert for milling cutters having an approximately square basic shape, comprising an upper surface, a bottom surface, a side surface and a plurality of cutting edges; a plurality of said cutting edges formed between the upper surface and the side surface, the plurality of said cutting edges including a main cutting edge, a corner cutting edge and a wiper cutting edge;
the side surfaces include a first side surface and a second side surface, the first side surface including a first planar surface connecting the upper surface and a second planar surface located below;
the intersection between the first planar surface and the upper surface forms the main cutting edge, the main cutting edge has the same or substantially the same width adjacent to the first planar surface portion along a region of the main cutting edge in the direction of the corner cutting edge, and the region along the direction of the main cutting edge in the direction of the corner cutting edge forms the same angle with respect to the bottom surface.
Further, the first planar surface intersects the main cutting edge and the second planar surface, the second planar surface being adjacent the bottom surface, the first planar surface being at an acute angle to the main cutting edge.
Further, the junction between the second side surface and the upper surface forms the smoothing cutting edge, the second side surface is connected with the bottom surface, and the second side surface and the bottom surface form an obtuse angle.
The structural improvement of this patent brings following advantage:
(1) the region of the insert main cutting edge adjacent to the first flat surface portion in the direction from the main cutting edge to the corner cutting edge has the same or substantially the same width, and the region in the direction from the main cutting edge to the corner cutting edge forms the same angle with respect to the bottom surface; the junction between the second side surface and the upper surface forms a wiper cutting edge, while the second side surface is connected to the bottom surface. The cutting insert can thus be sufficient to prevent interference between the machined surface and the non-cutting edge, while increasing the strength of the corner that produces the greatest cutting resistance during milling.
(2) By optimizing the side surface structure of the cutting blade, the sufficient cutting depth and strength are ensured, the interference of the tail part of the side surface of the cutting blade on cutting is avoided, the cutting blade can bear higher cutting force, and the durability and the stability of the cutting blade are enhanced. The main cutting edge is combined with the smoothing cutting edge firmly and easily, and meanwhile, the main cutting edge has good strength and long service life.
(3) The side surfaces of the cutting insert are reduced from creating frictional interference with the cutting during milling and reducing the difficulty of their production and the cost of their manufacture.
Drawings
Fig. 1 is a perspective view of a cutting insert of the present invention.
Fig. 2 is a front view of the cutting insert of fig. 1.
Fig. 3 is a top view of the cutting insert of fig. 1.
Fig. 4 is a cross-sectional view of the cutting insert of fig. 3 taken along line F-F and a cross-sectional view taken along line G-G.
Fig. 5 is a front view of the cutting insert adjacent the shoulder and bottom surfaces of the workpiece.
Fig. 6 is a cross-sectional view of the cutting insert of fig. 5 taken along line L-L and a cross-sectional view taken along line M-M.
Wherein 1 is an upper surface, 2 is a bottom surface, 3 is a side surface, 4 is a main cutting edge, 5 is a corner cutting edge, 6 is a wiper cutting edge, 31 is a first side surface, 32 is a second side surface, 311 is a first flat surface, and 312 is a second flat surface.
Detailed Description
The following embodiments of the present patent are described in terms of specific embodiments, and other advantages and effects of the present patent will become apparent to those skilled in the art from the disclosure herein. The present disclosure may be embodied or carried out in various other specific embodiments, and it is understood that various changes, modifications, and alterations can be made in the details of this disclosure without departing from the spirit of the disclosure.
As shown in fig. 1-6 the present patent embodiment provides an indexable cutting insert for a milling cutter, having an approximately square basic shape, comprising an upper surface 1, a bottom surface 2, a side surface 3 and a plurality of cutting edges; a plurality of said cutting edges are formed between the upper surface 1 and the side surface 3, the plurality of said cutting edges including a main cutting edge 4, a corner cutting edge 5 and a wiper cutting edge 6;
the side surface 3 comprises a first side surface 31 and a second side surface 32, the first side surface 31 comprises a first flat surface 311 connecting the upper surface 1 and a second flat surface 312 located below;
the intersection between the first planar surface 311 and the upper surface 1 forms the main cutting edge 4, the area of the main cutting edge 4 adjacent to the first planar surface 311 part in the direction of the main cutting edge 4 to the corner cutting edge 5 has the same or substantially the same width, and the area of the main cutting edge 4 adjacent to the first planar surface 311 part in the direction of the main cutting edge 4 to the corner cutting edge 5 forms the same angle with respect to the bottom surface. Therefore, the thickness of the stress surface is increased by optimizing the side surface structure of the cutting blade, and sufficient cutting depth and strength are ensured.
As shown in fig. 4, which is a cross-section of the cutting insert of the present patent taken along line F-F, showing the wiper cutting edge of the insert, it can be seen that the second side surface 32 forms an obtuse angle with the bottom surface 2; a section of the cutting insert taken along line G-G is shown in a cross-sectional view of the main cutting edge, and it can be seen that the first planar surface 311 forms an obtuse angle with the bottom surface 2.
The first planar surface intersects the main cutting edge and the second planar surface below it, which is adjacent to the bottom surface, the first planar surface 311 being at an acute angle to the main cutting edge 4. The intersection between the second side surface and the upper surface forms the wiper cutting edge 6, which is connected to the bottom surface, wherein the second side surface is at an obtuse angle to the bottom surface, so that the configuration and angle of the main cutting edge 4 and the wiper cutting edge 6 are slightly changed, which improves the strength of the corner that generates the greatest cutting resistance during milling.
Fig. 5 is a front view of the cutting insert adjacent the shoulder and bottom surfaces of the workpiece. Fig. 6 is a sectional view of the cutting insert of fig. 5 taken along line L-L and a sectional view taken along line M-M, which shows the clearance between the flank face and the surface of the workpiece to be machined after the insert is set at two positions, L-L and M-M, in a simulated actual machining process. The cutting insert improves the maximum cutting force which can be borne by the corner and the cutting edge of the cutting insert, and enhances the strength and the service life of the cutting insert.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention shall be covered by the protection scope of the present invention. Therefore, the protection scope of the patent shall be subject to the protection scope of the claims.
Claims (3)
1. An indexable cutting insert for a milling cutter, characterized in that,
has an approximately square basic shape including an upper surface, a bottom surface, a side surface and a plurality of cutting edges;
a plurality of said cutting edges formed between the upper surface and the side surface, the plurality of said cutting edges including a main cutting edge, a corner cutting edge and a wiper cutting edge;
the side surfaces include a first side surface and a second side surface, the first side surface including a first planar surface connecting the upper surface and a second planar surface located below;
the intersection between the first flat surface and the upper surface forms the main cutting edge, which has the same or substantially the same width adjacent to the first flat surface part along the area of the main cutting edge in the direction of the corner cutting edge, and which forms the same angle with the bottom surface along the area of the main cutting edge in the direction of the corner cutting edge.
2. The indexable cutting insert for a milling cutter according to claim 1 wherein the first planar surface intersects the main cutting edge, the second planar surface being adjacent the bottom surface, the first planar surface being at an acute angle to the main cutting edge.
3. The indexable cutting insert for a milling cutter according to claim 1 wherein an intersection between the second side surface and the upper surface forms the wiper cutting edge, the second side surface being coterminous with the bottom surface, wherein the second side surface forms an obtuse angle with the bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220634351.8U CN217412580U (en) | 2022-03-23 | 2022-03-23 | Indexable cutting insert for milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220634351.8U CN217412580U (en) | 2022-03-23 | 2022-03-23 | Indexable cutting insert for milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217412580U true CN217412580U (en) | 2022-09-13 |
Family
ID=83181560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220634351.8U Active CN217412580U (en) | 2022-03-23 | 2022-03-23 | Indexable cutting insert for milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217412580U (en) |
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2022
- 2022-03-23 CN CN202220634351.8U patent/CN217412580U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Zhangyuan Precision Tool Technology Co.,Ltd. Assignor: GANZHOU ACHTECK TOOL TECHNOLOGY Co.,Ltd. Contract record no.: X2023980053607 Denomination of utility model: A Indexable Cutting Blade for Milling Knives Granted publication date: 20220913 License type: Common License Record date: 20231222 |