CN212945662U - Coated hard alloy milling cutter - Google Patents
Coated hard alloy milling cutter Download PDFInfo
- Publication number
- CN212945662U CN212945662U CN202021292277.3U CN202021292277U CN212945662U CN 212945662 U CN212945662 U CN 212945662U CN 202021292277 U CN202021292277 U CN 202021292277U CN 212945662 U CN212945662 U CN 212945662U
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- Prior art keywords
- sword
- frustum
- cutting
- milling cutter
- diameter
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- Expired - Fee Related
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- 238000003801 milling Methods 0.000 title claims abstract description 26
- 229910045601 alloy Inorganic materials 0.000 title description 3
- 239000000956 alloy Substances 0.000 title description 3
- 238000005520 cutting process Methods 0.000 claims abstract description 54
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 239000010935 stainless steel Substances 0.000 abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 5
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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Abstract
The utility model relates to a coating carbide milling cutter, including the handle of a knife, first frustum, connecting portion, second frustum and cutting portion, the one end and the handle of a knife of first frustum are connected, connecting portion are the column, the one end of connecting portion is connected with the other end of first frustum, the other end of connecting portion is connected with the one end of second frustum, the cutting portion is connected with the other end of second frustum, the length of cutting portion accounts for 1/50 of whole milling cutter length, the diameter of cutting portion is the 1/4 of handle of a knife diameter, the cutting portion includes end sword and all sword, the end sword comprises four arc sword that outwards are the form of dispersing from cutting portion center, be equipped with the chip groove between two liang of arc sword, all sword comprises four spiral sword that are the heliciform and distribute along the cutting portion periphery from end sword end, be equipped with spiral chip groove between the spiral sword. The utility model discloses can improve the hardness and the intensity of whole cutter, cutting pressure when increasing the cutting stainless steel work piece for the heat dissipation reduces long-pending bits, guarantees the machining precision, improves processingquality, reduces the processing cost.
Description
Technical Field
The utility model belongs to the technical field of the milling cutter technique and specifically relates to a coating carbide milling cutter.
Background
A milling cutter is a rotating tool for milling machining having one or more cutter teeth. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. When the milling cutter is used for cutting a stainless steel workpiece, the problems of serious work hardening, much cutting heat, difficult heat dissipation and the like can be caused, the cutting temperature of a cutting edge is high, chips are seriously adhered to a cutting edge, and accumulated chips are easily generated, so that the abrasion of the milling cutter is aggravated, and the roughness of a processed surface is influenced. In addition, the existing milling cutter, especially the milling cutter with the cutter head length occupying the small ratio of the whole cutter length, has insufficient hardness and strength, bears small cutting pressure, is easy to break, causes the increase of production cost and affects the production efficiency.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides a coated hard alloy milling cutter.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a coating carbide milling cutter, includes handle of a knife, first frustum, connecting portion, second frustum and cutting portion, the one end and the handle of a knife of first frustum are connected, connecting portion are the column, and the one end of connecting portion is connected with the other end of first frustum, and the other end of connecting portion is connected with the one end of second frustum, the cutting portion is connected with the other end of second frustum, and the length of cutting portion accounts for 1/50 of whole milling cutter length, and the diameter of cutting portion is 1/4 of handle of a knife diameter, and the cutting portion includes end sword and all sword, the end sword comprises four arc sword that outwards are the form of diverging from the cutting portion center, is equipped with the chip groove between two liang of arc sword, all sword comprise four spiral sword that are the heliciform and distribute along the cutting portion periphery from end sword end, are equipped with spiral chip groove between two liang of spiral sword.
The connection between the cutter handle and the cutting part is transited by adding the first frustum and the second frustum, so that the milling cutter can bear larger cutting pressure; the end blades are composed of four arc-shaped blades which are diverged outwards from the center of the cutting part, so that the cutter breakage is prevented, the heat dissipation is accelerated, and the accumulated chips are reduced; the peripheral blade is composed of four spiral blades spirally distributed from the tail end of the end blade along the periphery of the cutting part, and the peripheral blade is directly connected with the tail end of the end blade to ensure the processing precision.
In order to ensure the strength of the milling cutter and reduce the processing cost, a TiCN reinforcing layer is further arranged on the cutting part.
In order to ensure that the diameter from the tool holder to the cutting part is gradually reduced and the connection strength between the first frustum and the tool holder and between the second frustum and the cutting part is ensured, further, the taper angles of the first frustum and the second frustum are both 60 degrees.
In order to secure the strength of the connection portion, further, the diameter of the connection portion is 2 times the diameter of the cutting portion.
Specifically, the length and the diameter of cutting portion are 1mm, the diameter of connecting portion is 2mm, the diameter of handle of a knife is 4 mm.
The utility model has the advantages that: the utility model discloses can improve the hardness and the intensity of whole cutter, cutting pressure when increasing the cutting stainless steel work piece for the heat dissipation reduces long-pending bits, guarantees the machining precision, improves processingquality, reduces the processing cost.
Drawings
The present invention will be further described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a left side view of fig. 1.
In the figure: 1. the tool comprises a tool handle, 2 parts of a first frustum, 3 parts of a connecting part, 4 parts of a second frustum, 5 parts of a cutting part, 51 parts of end edges, 52 parts of peripheral edges, 53 parts of chip grooves and 54 parts of spiral chip grooves.
Detailed Description
The invention will now be further described with reference to the accompanying drawings. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, a coated cemented carbide milling cutter, which has a length of 50mm, includes a shank 1 having a diameter of 4mm, a first frustum 2, a columnar connecting portion 3 having a diameter of 2mm, a second frustum 4, and a cutting portion 5 having a length and a diameter of 1mm, wherein one end of the first frustum 2 is connected to the shank 1, one end of the connecting portion 3 is connected to the other end of the first frustum 2, the other end of the connecting portion 3 is connected to one end of the second frustum 4, the cutting portion 5 is connected to the other end of the second frustum 4, the first frustum 2 is used for transition between the shank 1 and the connecting portion 3, and the second frustum 4 is used for transition between the connecting portion 4 and the cutting portion 5, so as to ensure that the milling cutter can bear a large cutting pressure;
the cutting part 5 comprises an end edge 51 and a peripheral edge 52, the end edge 51 consists of four arc-shaped edges which are diverged outwards from the center of the cutting part, a chip groove 53 is arranged between every two arc-shaped edges, the heat dissipation area of the arc-shaped edges is increased, the heat dissipation is accelerated, and the arc-shaped edges are not easy to break because the arc-shaped edges have no tip parts;
the peripheral edge 52 consists of four spiral edges spirally distributed along the periphery of the cutting part from the tail end of the end edge 51, a spiral chip-removing groove 54 is arranged between every two spiral edges, the spiral edges accelerate the processing speed and are connected with the tail end of the end edge 51, the condition of 'jumping' is avoided, and the processing quality is ensured;
and a TiCN reinforcing layer is arranged on the cutting part 5, so that the strength of the milling cutter is ensured, and the processing cost is reduced.
Preferably, the taper angles of the first and second cones 2, 4 are both 60 °. The taper angle is larger than 60 degrees, which is not beneficial to the gradual reduction of the diameter from the cutter handle 1 to the cutting part 5, and the taper angle is smaller than 60 degrees, so that the connection strength of the first frustum 2 and the handle of the cutter 1 and the connection strength of the second frustum 4 and the cutting part 5 cannot be ensured.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable people skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. A coated cemented carbide milling cutter, characterized in that: including handle of a knife, first frustum, connecting portion, second frustum and cutting part, the one end and the handle of a knife of first frustum are connected, connecting portion are the column, and the one end of connecting portion is connected with the other end of first frustum, and the other end of connecting portion is connected with the one end of second frustum, the cutting part is connected with the other end of second frustum, and the length of cutting part accounts for whole milling cutter length's 1/50, and the diameter of cutting part is the 1/4 of handle of a knife diameter, and the cutting part includes end sword and all sword, the end sword comprises four arc sword that outwards are the form of diverging from cutting part center, is equipped with the chip groove between two liang of arc sword, all sword comprises four spiral sword that are the heliciform and distribute along the cutting part periphery from end sword end, is equipped with spiral chip groove between two liang of spiral sword.
2. The coated cemented carbide milling cutter as claimed in claim 1, wherein: and a TiCN reinforcing layer is arranged on the cutting part.
3. The coated cemented carbide milling cutter as claimed in claim 1, wherein: the taper angles of the first frustum and the second frustum are both 60 degrees.
4. The coated cemented carbide milling cutter as claimed in claim 3, wherein: the diameter of the connecting part is 2 times of the diameter of the cutting part.
5. The coated cemented carbide milling cutter as claimed in claim 4, wherein: the length and the diameter of cutting portion are 1mm, the diameter of connecting portion is 2mm, the diameter of handle of a knife is 4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292277.3U CN212945662U (en) | 2020-07-03 | 2020-07-03 | Coated hard alloy milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021292277.3U CN212945662U (en) | 2020-07-03 | 2020-07-03 | Coated hard alloy milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212945662U true CN212945662U (en) | 2021-04-13 |
Family
ID=75391536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021292277.3U Expired - Fee Related CN212945662U (en) | 2020-07-03 | 2020-07-03 | Coated hard alloy milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212945662U (en) |
-
2020
- 2020-07-03 CN CN202021292277.3U patent/CN212945662U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210413 |