CN114147271A - Ceramic milling cutter with multi-section arc edges - Google Patents
Ceramic milling cutter with multi-section arc edges Download PDFInfo
- Publication number
- CN114147271A CN114147271A CN202111516878.7A CN202111516878A CN114147271A CN 114147271 A CN114147271 A CN 114147271A CN 202111516878 A CN202111516878 A CN 202111516878A CN 114147271 A CN114147271 A CN 114147271A
- Authority
- CN
- China
- Prior art keywords
- edge
- milling cutter
- arc
- edges
- ceramic milling
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0032—Arrangements for preventing or isolating vibrations in parts of the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a ceramic milling cutter with multi-section arc edges, belonging to the technical field of cutters, which comprises: a shank portion and a blade portion; one end of the handle part is fixedly connected with one end of the knife edge part, and two peripheral edges are arranged on the knife edge part; every week sword is around the axis of cutting edge portion, follow one end spiral bending of cutting edge portion extremely the other end of cutting edge portion, and two week sword symmetry sets up. The invention has large chip area, avoids stress concentration, improves the stability during high-speed high-temperature cutting and prolongs the service life.
Description
Technical Field
The invention relates to the technical field of cutters, in particular to a ceramic milling cutter with a plurality of sections of arc edges.
Background
A milling cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine. The number of cutting inserts involved in cutting at any one time is an advantage, but too many, the power required is dependent on how many cutting edges are involved in cutting, and the position of the milling cutter relative to the workpiece plays an important role in chip formation, cutting edge loading and machining results. In the prior art, parameters such as the peripheral edge, the spiral groove profile shape, the spiral angle and the like of the milling cutter are not limited at all, so that the technical problems of low peripheral edge strength, easy damage of the cutting edge, high edge breakage probability, small chip area and stress concentration exist.
Therefore, it is one of the technical problems to be solved in the art to provide a ceramic cutting tool with multiple arc-shaped edges, which has a large chip area and avoids stress concentration.
Disclosure of Invention
In view of the above, the present invention provides a ceramic milling cutter with a multi-segment circular-arc edge. The purpose is to solve the above-mentioned deficiency and offer.
In order to solve the technical problems, the invention adopts the following technical scheme:
a ceramic milling cutter with multi-section arc edges comprises a handle part and a blade part; one end of the handle part is fixedly connected with one end of the blade part.
Preferably, two peripheral edges are arranged on the knife edge part; each circumferential blade is spirally bent from one end of the blade part to the other end of the blade part around the axis of the blade part, and the two circumferential blades are symmetrically arranged; the included angle between each peripheral edge tangent line L1 and the axis of the knife edge part is a helical angle.
Preferably, the included angle between the axis of the peripheral edge 21 and the tangent L1 of the peripheral edge 21 is a helix angle; the helical angle is 30-45 degrees.
Preferably, a margin is cut on the tip of each peripheral edge on the opposite side to the curvature of the peripheral edge.
The beneficial effect of this technical scheme is: the cutting area can be effectively increased by the blade zone.
Preferably, the surface of the blade part is provided with two spiral grooves, and the two spiral grooves and the two peripheral blades are arranged in a staggered manner.
Preferably, one end of each spiral groove far away from the handle is provided with a step wavy edge; the left end and the right end of the step wavy blade are respectively connected with one circumferential blade.
Preferably, each of the stepped wavy edges has a cross section of an outer radius arc and an inner radius arc, which are tangent to each other.
Preferably, the radius of the outer diameter circular arc is 0.3-1 mm of the radius of the first section of circular arc; the radius of the inner diameter arc is 2-6 mm.
Preferably, the included angle between the tangent line L2 of the outer diameter arc on the cutting edge and the connecting line L3 of the cutting edge and the axis is a radial rake angle of the peripheral edge, and the radial rake angle of the peripheral edge is 12-18 degrees.
Compared with the prior art, the invention has the following technical effects:
1. according to the invention, the radius of the outer diameter arc is limited to be 0.3-1 mm of the radius of the first section of arc, the radius of the inner diameter arc is 2-6 mm, the radius of the cut arc is increased, the length of the end bottom edge of the end part is increased, and the radian of the arc section is changed, so that the stress direction is changed, the radial cutting component force is reduced, the vibration and the bending of the ceramic cutter can be inhibited to a certain extent, and the vibration resistance of the ceramic milling cutter is improved;
2. the spiral angle is 30-45 degrees, so that the strength of the corner on the peripheral edge, which is far away from the handle part, is increased, the damage to the cutting edge can be reduced, and the probability of edge breakage is reduced;
3. the step wavy blade increases the contact area in the chip cutting process through the radial rake angle of the peripheral blade with a specific size, and the outer diameter circular arc and the inner diameter circular arc can effectively reduce the cutting resistance of the cutter, reduce the phenomenon of stress concentration, improve the stability of the ceramic milling cutter during high-speed high-temperature cutting, and prolong the service life of the milling cutter.
Drawings
FIG. 1 is a schematic structural view of a ceramic milling cutter with multiple arc edges according to the present invention;
FIG. 2 is a side view of a ceramic milling cutter of the present invention having multiple arcuate cutting edges;
FIG. 3 is a schematic cross-sectional view A-A of a ceramic milling cutter of the present invention having multiple arcuate cutting edges;
FIG. 4 is an enlarged view of the position B of the ceramic milling cutter with multi-segment arc edges according to the present invention;
in the figure: 1-a handle; 2-a knife edge part; 21-peripheral edge; 211-land; 22-helical groove; 221-a stepped wavy edge; 2211-outer diameter arc; 2212-inner diameter arc; 2213-peripheral edge radial rake angle; 23-helix angle; 24-core circle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-4, a ceramic milling cutter with a multi-section arc edge is shown, the overall length of the cutter is 60-70 mm, the diameter of the cutter is 8-12 mm, and the ceramic milling cutter comprises: the handle part 1 and the blade part 2, the handle part 1 and the blade part 2 are integrally formed, and the adopted material is silicon nitride ceramic or SiAlON ceramic, so that the material has higher hardness and higher strength.
Two circumferential blades 21 are arranged on the blade part 2, each circumferential blade 21 is spirally bent from one end of the blade part 2 to the other end of the blade part 2 around the axis of the blade part 2, and the two circumferential blades 21 are symmetrically arranged. A land 211 is cut at the tip of each peripheral edge 21 on the side opposite to the side where the peripheral edge 21 is bent, and the land 211 contributes to an increase in the contact area of the tool with the workpiece and an increase in the strength of the cutting edge.
The included angle between the axis of the peripheral edge 21 and the tangent line L1 of the peripheral edge 21 is a helical angle 23, the helical angle 23 is 30-45 degrees, the strength of the corner of the peripheral edge 21 away from the handle part 1 is increased, the damage of the cutting edge can be reduced, and the probability of edge breakage is reduced.
The surface of the blade part 2 is further provided with two spiral grooves 22, and the two spiral grooves 22 and the two peripheral edges 21 are arranged in a mutually staggered manner. Two step wavy edges 221 are provided at an end of each spiral groove 22 away from the shank 1, and the left and right ends of each step wavy edge 221 are connected to a circumferential edge 21, respectively.
The section of each step wavy edge 221 is an outer diameter arc 2211 and an inner diameter arc 2212 which are tangent, the length from the intersection point to the axis is the radius of the core circle 24, and the radius of the core circle 24 is 60% -70% of the distance from the tool tip to the axis. The radius of the outer diameter arc 2211 of each step wavy edge 221 is 0.3-1 mm, and the radius of the inner diameter arc 2212 is 2-6 mm. The tangent line L2 of the outer diameter arc 2211 on the cutter tip forms an included angle with the connecting line L3 of the cutter tip and the axis, namely a forward angle 2213 of the peripheral edge diameter, and the forward angle 2213 of the peripheral edge diameter is between 12 degrees and 18 degrees. According to the milling cutter, the radial front angle 2213 of the peripheral edge with a specific size on the step wavy edge 221 is used for increasing the chip contact area, and the outer diameter arc 2211 and the inner diameter arc 2212 can effectively reduce the cutting resistance of the cutter, reduce the phenomenon of stress concentration, improve the stability of the milling cutter during high-speed high-temperature cutting and prolong the service life of the milling cutter.
The working principle is as follows:
during milling, one end of the peripheral edge 21, which is far away from the handle part 1, is in contact with a workpiece; in the rotation process of the milling cutter, the peripheral edge 21 increases the contact area of the cutter and a workpiece through the edge zone 211, and improves the strength of the cutting edge; the helical angle 23 is 30-45 degrees, so that the strength of the corner of the peripheral edge 21 away from the handle part 1 is increased; and the radial front angle 2213 of the peripheral edge with a specific size on the step wavy edge 221 increases the chip contact area, and the outer diameter arc 2211 and the inner diameter arc 2212 can effectively reduce the cutting resistance of the cutter, reduce the phenomenon of stress concentration, improve the stability of the milling cutter during high-speed high-temperature cutting and prolong the service life of the milling cutter.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. A ceramic milling cutter with multi-segment arc edges, comprising: a handle part (1) and a blade part (2); one end of the handle part (1) is fixedly connected with one end of the blade part (2);
two circumferential edges (21) are arranged on the knife edge part (2); every week sword (21) is wound the axis of cutting edge portion (2), follow the one end spiral bending of cutting edge portion (2) extremely the other end of cutting edge portion (2), and two week sword (21) symmetry sets up.
2. The ceramic milling cutter with multi-segment circular arc edges as claimed in claim 1, wherein the included angle between the axis of the peripheral edge (21) and the tangent L1 of the peripheral edge (21) is a helix angle (23); the helical angle (23) is 30-45 degrees.
3. The ceramic milling cutter with multiple arc edges as set forth in claim 1, wherein a margin (211) is cut at the tip of each peripheral edge (21) on the opposite side of the curvature of the peripheral edge (21).
4. The ceramic milling cutter with the multi-segment circular arc edge as claimed in claim 1, wherein the surface of the cutting edge part (2) is provided with two spiral grooves (22), and the two spiral grooves (22) and the two peripheral edges (21) are arranged in a staggered manner.
5. The ceramic milling cutter with multi-segment circular arc edge as claimed in claim 4, wherein each spiral groove (22) is provided with two stepped wavy edges (221) at one end away from the shank (1); the left and right ends of each step wave-shaped blade (221) are respectively connected with one circumferential blade (21).
6. The ceramic milling cutter with multi-segment circular arc edge as claimed in claim 5, wherein the cross section of each step wave edge (221) is an outer diameter circular arc (2211) and an inner diameter circular arc (2212), and the two are tangent.
7. The ceramic milling cutter with multi-segment circular arc edge as claimed in claim 6, wherein the radius of the outer diameter circular arc (2211) is 0.3-1 mm; the radius of the inner diameter arc (2212) is 2-6 mm.
8. The ceramic milling cutter with multi-segment arc edge according to claim 6, wherein the angle between the tangent line L2 of the outer diameter arc 2211 at the cutting edge and the line L3 connecting the cutting edge and the axial center is a peripheral edge radial rake angle (2213), and the peripheral edge radial rake angle (2213) is from-12 ° to-18 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111516878.7A CN114147271A (en) | 2021-12-13 | 2021-12-13 | Ceramic milling cutter with multi-section arc edges |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111516878.7A CN114147271A (en) | 2021-12-13 | 2021-12-13 | Ceramic milling cutter with multi-section arc edges |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114147271A true CN114147271A (en) | 2022-03-08 |
Family
ID=80450737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111516878.7A Withdrawn CN114147271A (en) | 2021-12-13 | 2021-12-13 | Ceramic milling cutter with multi-section arc edges |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114147271A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201432138Y (en) * | 2009-07-07 | 2010-03-31 | 中国兵器工业第五二研究所 | Integral gradient core diameter ball end mill |
| JP2016159380A (en) * | 2015-02-27 | 2016-09-05 | 三菱マテリアル株式会社 | Ball end mill |
| CN206662363U (en) * | 2017-04-01 | 2017-11-24 | 深圳市鑫国钰精密工具有限公司 | Ball-end mill |
| CN109794634A (en) * | 2019-03-05 | 2019-05-24 | 苏州阿诺精密切削技术有限公司 | A kind of roughing bulk ceramics milling cutter |
| CN110508854A (en) * | 2019-09-10 | 2019-11-29 | 苏州阿诺精密切削技术有限公司 | A kind of slotting cutter |
| CN111230195A (en) * | 2020-02-27 | 2020-06-05 | 厦门金鹭特种合金有限公司 | Ball-end milling cutter |
| CN212665006U (en) * | 2020-07-21 | 2021-03-09 | 上海冠钻精密工具有限公司 | Milling cutter |
| CN213288840U (en) * | 2020-04-13 | 2021-05-28 | 基准精密工业（惠州）有限公司 | Milling cutter |
| CN213410496U (en) * | 2020-08-11 | 2021-06-11 | 晋城鸿刃科技有限公司 | Milling cutter and milling device |
| CN214349871U (en) * | 2021-01-14 | 2021-10-08 | 阿斯图精密工具(上海)有限公司 | Long-life mould processing bulb milling cutter |
-
2021
- 2021-12-13 CN CN202111516878.7A patent/CN114147271A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201432138Y (en) * | 2009-07-07 | 2010-03-31 | 中国兵器工业第五二研究所 | Integral gradient core diameter ball end mill |
| JP2016159380A (en) * | 2015-02-27 | 2016-09-05 | 三菱マテリアル株式会社 | Ball end mill |
| CN206662363U (en) * | 2017-04-01 | 2017-11-24 | 深圳市鑫国钰精密工具有限公司 | Ball-end mill |
| CN109794634A (en) * | 2019-03-05 | 2019-05-24 | 苏州阿诺精密切削技术有限公司 | A kind of roughing bulk ceramics milling cutter |
| CN110508854A (en) * | 2019-09-10 | 2019-11-29 | 苏州阿诺精密切削技术有限公司 | A kind of slotting cutter |
| CN111230195A (en) * | 2020-02-27 | 2020-06-05 | 厦门金鹭特种合金有限公司 | Ball-end milling cutter |
| CN213288840U (en) * | 2020-04-13 | 2021-05-28 | 基准精密工业（惠州）有限公司 | Milling cutter |
| CN212665006U (en) * | 2020-07-21 | 2021-03-09 | 上海冠钻精密工具有限公司 | Milling cutter |
| CN213410496U (en) * | 2020-08-11 | 2021-06-11 | 晋城鸿刃科技有限公司 | Milling cutter and milling device |
| CN214349871U (en) * | 2021-01-14 | 2021-10-08 | 阿斯图精密工具(上海)有限公司 | Long-life mould processing bulb milling cutter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2578787C (en) | Helical flute end mill with multi-section cutting edge | |
| JP4704495B2 (en) | Turbine blade connecting groove cutting method and Christmas cutter used therefor | |
| WO2014069265A1 (en) | End mill with coolant holes | |
| TW200846109A (en) | Rotary cutting tool | |
| JP2016190299A (en) | Forming end mill | |
| CN108672780A (en) | milling cutter for processing graphite workpiece | |
| JP3392467B2 (en) | Honeycomb core cutting tool | |
| CN110102808A (en) | More groove end mill(ing) cutters | |
| CN210498520U (en) | Drilling and milling cutter with unequal angles of end edges | |
| CN114147271A (en) | Ceramic milling cutter with multi-section arc edges | |
| EP4101566B1 (en) | Spiral step twist drill bit | |
| CN106862618B (en) | Drilling machining tool | |
| JP7491104B2 (en) | Ball End Mill | |
| CN221269779U (en) | Corrugated milling cutter | |
| CN217991053U (en) | Two-edge spiral groove chamfering tool | |
| JP2023143706A (en) | end mill | |
| CN215356373U (en) | Four-edge round nose knife | |
| CN218109469U (en) | Variable helix angle end face arc round nose end mill | |
| CN220028798U (en) | Four-edge round nose tool for processing die steel after heat treatment | |
| CN214978011U (en) | Spiral T-shaped cutter for metal surface treatment | |
| JP6968933B2 (en) | Cutter head structure and cutting tools | |
| CN216227399U (en) | PCD maize thread milling cutter | |
| CN212469933U (en) | T-shaped milling cutter for processing plastic | |
| CN216858363U (en) | Microminiature gradually-changed spiral high-performance milling cutter | |
| CN216575749U (en) | Spiral cutter for machining conical hole groove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20220308 |