CN112916929A - High-precision PCD corn milling cutter - Google Patents
High-precision PCD corn milling cutter Download PDFInfo
- Publication number
- CN112916929A CN112916929A CN201911237001.7A CN201911237001A CN112916929A CN 112916929 A CN112916929 A CN 112916929A CN 201911237001 A CN201911237001 A CN 201911237001A CN 112916929 A CN112916929 A CN 112916929A
- Authority
- CN
- China
- Prior art keywords
- cutter
- blade
- pcd
- cutting
- cutting group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003801 milling Methods 0.000 title claims abstract description 31
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 24
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 23
- 235000005822 corn Nutrition 0.000 title claims abstract description 23
- 240000008042 Zea mays Species 0.000 title claims description 22
- 230000001788 irregular Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 2
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 claims 1
- 235000009973 maize Nutrition 0.000 claims 1
- 229910000851 Alloy steel Inorganic materials 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 241000209149 Zea Species 0.000 abstract 2
- 238000003754 machining Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/18—Milling-cutters characterised by physical features other than shape with permanently-fixed cutter-bits or teeth
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/24—Overall form of the milling cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/31—Diamond
- B23C2226/315—Diamond polycrystalline [PCD]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2240/00—Details of connections of tools or workpieces
- B23C2240/16—Welded connections
Abstract
The invention discloses a high-precision PCD corn milling cutter, which comprises a cutter handle and a cutter body, wherein the cutter body is fixedly connected with the cutter handle, more than two spiral cutting groups are circumferentially distributed from one end of the cutter body, which is far away from the cutter handle, to the middle part of the cutter body, each cutting group comprises more than two cutter seats, each cutter seat is fixedly connected with a blade, and a plurality of blades in each cutting group are sequentially arranged along the axial direction in a certain spiral angle; one blade arranged at the foremost end of each cutting group protrudes out of the front end surface of the cutter body, and the outer edge angle of a cutting edge of each cutting group is provided with a round chamfer; the cutting tracks between two adjacent blades in each cutting group have an overlapping part. The PCD cutter blade is adopted, and the PCD cutter blade has excellent strength, hardness and wear resistance through reasonable arrangement design of the cutter blade, and compared with an alloy steel cutter, the service life of the corn milling cutter is greatly prolonged.
Description
Technical Field
The invention relates to the field of mechanical metal processing cutters, in particular to a high-precision PCD corn milling cutter.
Background
The corn milling cutter is also called a corn cob milling cutter, and is shaped like a corn, and a plurality of blades are distributed on a cutter body. The corn milling cutter is mainly used for milling contours, is a common tool in rough milling, has the advantages of excellent cutting performance, high processing efficiency and the like, and is widely applied to rough processing or semi-finishing of mechanical parts, such as blades, dies, holes and grooves. When high-speed machining is carried out, the corn milling cutter in the prior art often generates the situation such as the blade sharp corner department collapses because the blade distributes unreasonablely, and cutter life is short, can not guarantee machining precision and machining efficiency.
Disclosure of Invention
Aiming at the defects of easy breakage, low processing efficiency, short service life and the like of a corn milling cutter blade in the prior art, the invention provides the PCD corn milling cutter with long service life and high strength. The specific scheme is as follows: the high-precision PCD corn milling cutter comprises a cutter handle and a cutter body, wherein the cutter body is fixedly connected with the cutter handle, more than two spiral cutting groups are circumferentially distributed from one end of the cutter body, which is far away from the cutter handle, to the middle part of the cutter body, each cutting group comprises more than two cutter seats, each cutter seat is fixedly connected with a blade, and a plurality of blades in each cutting group are sequentially arranged along the axial direction at a certain spiral angle; one blade arranged at the foremost end of each cutting group protrudes out of the front end surface of the cutter body, and the outer edge angle of a cutting edge of each cutting group is provided with a round chamfer; the cutting tracks between two adjacent blades in each cutting group have an overlapping part.
Furthermore, the shape of the first tool apron in each cutting group from the front end surface of the cutter body is an irregular sector formed by connecting two mutually perpendicular sides with different lengths in an arc; the cutter seats except the first cutter seat are identical in shape, the specific shape is a combination surface of a rectangle and a semicircle, one side of the rectangle parallel to the axial direction is provided with the blade, the other opposite side of the rectangle is the semicircle, and the diameter of the other side of the rectangle is equal to the side length provided with the blade.
Further, the helix angle is 30-60 °.
Further, the blade is a PCD blade, and the blade and the cutter body are connected in a welding mode.
Further, the cutting group has 4 groups, and each cutting group comprises 4 tool holders.
Furthermore, the knife handle is a high-speed conical knife handle, adopts a conical surface and end face double positioning mode, and has the specific model of HSK 63A.
The invention has the beneficial effects that: the outer edge angle of the first blade is provided with the round chamfer, so that the cutting edge is not sharp, and the cutting edge cannot break and break due to the sudden increase of stress when the first blade contacts the machined surface; the two adjacent blades in each cutting group are sequentially arranged at a certain deflection angle, the cutting tracks of the blades are overlapped, the blades arranged behind can have a buffering process along with the deep processing depth, and the cutting edges of the blades are not easy to damage; all the blades adopt PCD blades (polycrystalline diamond blades), which have excellent strength, hardness and wear resistance, and compared with alloy steel cutters, the service life of the corn milling cutter is greatly prolonged.
Drawings
FIG. 1 is a schematic structural view of a PCD corn milling cutter of the present invention;
labeled as: the cutter body 1, the handle of a knife 2, cutting group 11, blade holder 12, blade 13.
Detailed Description
The invention will be further illustrated with reference to the following figures and examples:
the high-precision PCD corn milling cutter comprises a cutter handle 2 and a cutter body 1, wherein the cutter body 1 is fixedly connected with the cutter handle 2, more than two spiral cutting groups 11 are circumferentially distributed from one end of the cutter body 1, which is far away from the cutter handle 2, to the middle part of the cutter body 1, each cutting group 11 comprises more than two cutter holders 12, each cutter holder 12 is fixedly connected with one blade 13, and the blades 13 in each cutting group 11 are sequentially arranged along the axial direction at a certain spiral angle; the angle of the helical angle is 30-60 degrees; a blade 13 arranged at the foremost end of each cutting group 11 protrudes out of the front end surface of the cutter body 1, and the outer edge angle of a cutting edge of the blade is provided with a round chamfer; the cutting tracks between two adjacent blades 13 in each cutting group 11 have an overlapping portion.
Furthermore, the shape of the first tool apron 12 from the front end surface of the cutter body 1 in each cutting group 11 is an irregular sector formed by connecting two mutually perpendicular sides with different lengths in an arc; the other tool holders 12 except the first tool holder 12 are identical in shape, and are specifically a rectangular and semicircular combined surface, wherein one side of the rectangle parallel to the axial direction is provided with a blade, the other opposite side of the rectangle is provided with the semicircular shape, and the diameter of the semicircular shape is equal to the side length provided with the blade 13.
The blade 13 is a PCD blade, and the connection mode of the blade 13 and the cutter body 1 is welding. The cutting groups 11 have 4 groups, and each cutting group 11 comprises 4 tool holders 12. The knife handle 2 is a high-speed conical knife handle, adopts a conical surface and end face dual positioning mode, and is of the specific type of HSK 63A.
When the automotive part is machined, the PCD corn milling cutter is mainly used for roughly milling the position of a hole groove in a part or performing surface treatment, when the hole groove is machined, the rotary corn milling cutter head faces the position to be machined to start milling, and blades 13 arranged behind are successively added into milling operation along with the deepening of machining, because the machining tracks of adjacent blades 13 have overlapping parts, a buffering process is provided before the rear blades 13 start milling, the PCD blades can be better protected, and the milling stability is improved. During milling, proper cutting fluid needs to be added to the cutter body for cooling so as to protect the PCD cutter blade from being damaged by overheating and burning.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
The above description is only a preferred collective embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. High accuracy PCD maize milling cutter, including handle of a knife and cutter body, its characterized in that: the cutter body is fixedly connected with the cutter handle, more than two spiral cutting groups are distributed from one end of the cutter body, which is far away from the cutter handle, to the middle part of the cutter body along the circumferential direction, each cutting group comprises more than two cutter holders, each cutter holder is fixedly connected with a blade, and a plurality of blades in each cutting group are sequentially arranged along the axial direction at a certain spiral angle; one blade arranged at the foremost end of each cutting group protrudes out of the front end surface of the cutter body, and the outer edge angle of a cutting edge of each cutting group is provided with a round chamfer; the cutting tracks between two adjacent blades in each cutting group have an overlapping part.
2. The high precision PCD corn milling cutter as claimed in claim 1, wherein: the shape of a first tool apron in each cutting group from the front end surface of the cutter body is an irregular sector formed by connecting two mutually perpendicular sides with different lengths in an arc; the cutter seats except the first cutter seat are identical in shape, the specific shape is a combination surface of a rectangle and a semicircle, one side of the rectangle parallel to the axial direction is provided with the blade, the other opposite side of the rectangle is the semicircle, and the diameter of the other side of the rectangle is equal to the side length provided with the blade.
3. The high precision PCD corn milling cutter as claimed in claim 1, wherein: the angle of the spiral angle is 30-60 degrees.
4. The high precision PCD corn milling cutter as claimed in claim 1, wherein: the blade is a PCD blade, and the blade and the cutter body are connected in a welding mode.
5. The high precision PCD corn milling cutter as claimed in claim 1, wherein: the cutting group has 4 groups, and each cutting group comprises 4 tool holders.
6. The high precision PCD corn milling cutter as claimed in claim 1, wherein: the knife handle is a high-speed conical knife handle, adopts a conical surface and end face dual positioning mode, and has the specific model of HSK 63A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237001.7A CN112916929B (en) | 2019-12-05 | High-precision PCD corn milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237001.7A CN112916929B (en) | 2019-12-05 | High-precision PCD corn milling cutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112916929A true CN112916929A (en) | 2021-06-08 |
| CN112916929B CN112916929B (en) | 2024-05-10 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510283A (en) * | 2021-07-15 | 2021-10-19 | 内蒙古第一机械集团股份有限公司 | Cutting tool and cutting process for titanium alloy material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7841809B2 (en) * | 2006-10-30 | 2010-11-30 | Pratt & Whitney Canada Corp. | High helix/low lead cutting tool |
| CN202224730U (en) * | 2011-10-13 | 2012-05-23 | 东阳市速博数控刀具有限公司 | Milling cutter for finishing and cutting hard alloy with high efficiency and high speed |
| CN208374308U (en) * | 2018-06-25 | 2019-01-15 | 常熟万克精密工具有限公司 | A kind of integrated molding PCD maize milling cutter |
| CN208945257U (en) * | 2018-09-29 | 2019-06-07 | 苏州石川制铁有限公司 | A kind of extended pattern maize milling cutter |
| CN209349569U (en) * | 2018-12-25 | 2019-09-06 | 广东华兴换热设备有限公司 | A kind of profile milling cutter |
| CN209394060U (en) * | 2018-12-29 | 2019-09-17 | 常州京都钻石工具有限公司 | A kind of PCD molding maize milling cutter |
| CN212384683U (en) * | 2019-12-05 | 2021-01-22 | 常州冶戈工具有限公司 | High-precision PCD corn milling cutter |
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7841809B2 (en) * | 2006-10-30 | 2010-11-30 | Pratt & Whitney Canada Corp. | High helix/low lead cutting tool |
| CN202224730U (en) * | 2011-10-13 | 2012-05-23 | 东阳市速博数控刀具有限公司 | Milling cutter for finishing and cutting hard alloy with high efficiency and high speed |
| CN208374308U (en) * | 2018-06-25 | 2019-01-15 | 常熟万克精密工具有限公司 | A kind of integrated molding PCD maize milling cutter |
| CN208945257U (en) * | 2018-09-29 | 2019-06-07 | 苏州石川制铁有限公司 | A kind of extended pattern maize milling cutter |
| CN209349569U (en) * | 2018-12-25 | 2019-09-06 | 广东华兴换热设备有限公司 | A kind of profile milling cutter |
| CN209394060U (en) * | 2018-12-29 | 2019-09-17 | 常州京都钻石工具有限公司 | A kind of PCD molding maize milling cutter |
| CN212384683U (en) * | 2019-12-05 | 2021-01-22 | 常州冶戈工具有限公司 | High-precision PCD corn milling cutter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113510283A (en) * | 2021-07-15 | 2021-10-19 | 内蒙古第一机械集团股份有限公司 | Cutting tool and cutting process for titanium alloy material |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |