CN216575741U - Round nose milling cutter - Google Patents
Round nose milling cutter Download PDFInfo
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- CN216575741U CN216575741U CN202122468542.XU CN202122468542U CN216575741U CN 216575741 U CN216575741 U CN 216575741U CN 202122468542 U CN202122468542 U CN 202122468542U CN 216575741 U CN216575741 U CN 216575741U
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- side cutting
- cutting edge
- milling cutter
- round nose
- circular arc
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Abstract
The application discloses round nose milling cutter relates to milling process technical field, includes: a handle; the cutting part comprises a plurality of side cutting edges and a plurality of chip grooves; every the one end of side cutting edge with the stalk portion is connected, and the other end of every side cutting edge is provided with the end sword, the side cutting edge with be equipped with the circular arc transition between the end sword, the circular arc radius is 1mm, the side cutting edge is close to the one end of end sword still is equipped with strengthens the face, the width of strengthening the face is greater than the circular arc radius, the side cutting edge is followed the axial lead heliciform setting of stalk portion, every side cutting edge one side corresponds and is provided with the chip groove. This application can reduce tipping and reduce the cutting allowance to the life of cutting part has been prolonged.
Description
Technical Field
The application relates to the technical field of milling, in particular to a round nose milling cutter.
Background
At present, generally can use round nose milling cutter to carry out rough machining when 3C product industry processes stainless steel material, because knife tip department has the protection of R angle, can strengthen the knife tip, avoid tipping, but the width that traditional stainless steel round nose sword strengthened the face equals R angle value, under the condition of deep cutting, the ability of strengthening the face protection has certain defect, if increase R value will bring bigger cutting allowance for the processing of back process, also can reduce the cutting allowance when unable accomplishing to reduce the tipping.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. For this reason, the present application provides a round nose milling cutter capable of reducing chipping and reducing cutting allowance, and extending the service life of the cutting portion.
The application provides a round nose milling cutter includes:
a handle;
the cutting part comprises a plurality of side cutting edges and a plurality of chip grooves; every the one end of side cutting edge with the stalk portion is connected, and the other end of every side cutting edge is provided with the end sword, the side cutting edge with be equipped with the circular arc transition between the end sword, the circular arc radius is 1mm, the side cutting edge is close to the one end of end sword still is equipped with strengthens the face, the width of strengthening the face is greater than the circular arc radius, the side cutting edge is followed the axial lead heliciform setting of stalk portion, every side cutting edge one side corresponds and is provided with the chip groove.
According to the round nose milling cutter of this application embodiment, have following beneficial effect at least: the utility model provides a round nose milling cutter is used for processing materials such as stainless steel, lathe centre gripping stalk portion, thereby drive stalk portion rotates and drives the cutting portion and rotate and cut the work piece, through be equipped with the circular arc transition between the side cutting edge and the end sword at the cutting portion, the circular arc radius is 1mm, greatly increased the width of strengthening the face, guaranteed the protection to the cutting portion under the condition of degree of depth cutting processing effectively, reduce the condition that takes place to collapse the sword, reduce the cutting allowance, and simultaneously, be equipped with the chip groove between adjacent side cutting edge, this chip groove carries out the grinding through the shaping emery wheel and forms, the condition of cutting portion rigidity has been guaranteed like this under, the space of great chip removal has, let the process of cutting more steady, prolong the life of cutter simultaneously.
According to some embodiments of the application, the side cutting edges are provided with four, the end edges on two adjacent side cutting edges are different in orientation, and the chip grooves are respectively located between two adjacent side cutting edges.
According to some embodiments of the present application, the rake face of the end blade is provided with a circular arc rake face and a planar rake face, the planar rake face is close to one end of the side cutting edge, the rake angle of the circular arc rake face is-10 °, and the rake angle of the planar rake face is 5 °.
According to some embodiments of the present application, the relief surface of the end edge is provided with a first relief angle, a second relief angle; the first relief angle is 7 °, and the second relief angle of the end edge is 20 °.
According to some embodiments of the present application, the adjacent flute arrays have different pitches, and the angle formed by the rake face of each end edge and the rake face of the adjacent two end edges are 98 ° and 82 °, respectively.
According to some embodiments of the application, a chip groove is arranged between two adjacent end edges, and one end of the chip groove is connected with one end of the chip groove.
According to some embodiments of the present application, the chip flutes are circular arc-shaped chip flutes.
According to some embodiments of the present application, the side cutting edge has a helix angle of 38 °, the flute rake angle has an angle of 1 °, and the side cutting edge is provided with a circular arc relief angle having an angle of 10 °.
According to some embodiments of the application, a surface of the cutting portion is provided with a wear resistant coating.
According to some embodiments of the present application, the shank is provided in a cylindrical shape, and the shank is integrally formed with the cutting portion.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a round nose milling cutter according to some embodiments of the present application;
FIG. 2 is a front view of a round nose milling cutter of some embodiments of the present application;
FIG. 3 is a partially enlarged view of the area A in FIG. 2;
FIG. 4 is a schematic structural view from another perspective of a round nose mill according to some embodiments of the present application;
FIG. 5 is a partially enlarged view of the area B in FIG. 4;
FIG. 6 is a schematic end view of a round nose milling cutter according to some embodiments of the present application;
FIG. 7 is a cross-sectional end view of a round nose milling cutter according to some embodiments of the present application;
fig. 8 is an end face partial cross-sectional view of a round nose milling cutter of some embodiments of the present application.
The reference numbers are as follows:
a handle 100; a cutting portion 200; a side cutting edge 210; an end edge 220; first relief angle 221 of the end edge; second relief angle 222 of the end edge; the junk slots 230; a circular arc-shaped rake face 240; a planar rake surface 250; rake angle 251 of planar rake face; the chip flutes 260.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, if there are first and second described only for the purpose of distinguishing technical features, it is not understood that relative importance is indicated or implied or that the number of indicated technical features or the precedence of the indicated technical features is implicitly indicated or implied.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
Referring to fig. 1 to 5, the present application provides a round nose milling cutter including: a handle 100; a cutting part 200, wherein the cutting part 200 comprises a plurality of side cutting edges 210 and a plurality of chip grooves 230; one end of each side cutting edge 210 is connected with the handle 100, the other end of each side cutting edge 210 is provided with an end cutting edge 220, an arc transition is arranged between each side cutting edge 210 and the end cutting edge 220, the arc radius is 1mm, one end of each side cutting edge 210 close to the end cutting edge 220 is further provided with a reinforcing surface, the width L2 of the reinforcing surface is greater than the arc radius L1, the side cutting edges 210 are spirally arranged along the axial lead of the handle 100, and a chip removal groove 230 is correspondingly arranged on one side of each side cutting edge 210. The utility model provides a round nose milling cutter is used for processing materials such as stainless steel, lathe clamping handle portion 100, thereby the drive stalk portion rotates and drives cutting portion 200 and rotate and cut the work piece, through be equipped with the circular arc transition between side cutting edge 210 and the end cutting edge 220 at cutting portion 200, circular arc radius is 1mm, greatly increased the width of strengthening the face, guaranteed the protection to cutting portion 200 under the condition of deep-cutting processing effectively, reduce the condition that takes place the tipping, reduce the cutting allowance, and simultaneously, be equipped with chip groove 230 between adjacent side cutting edge 210, this chip groove 230 carries out the grinding through the shaping emery wheel and forms, guaranteed under the rigid condition of cutting portion 200 like this, the space of great chip removal has, let the process of cutting more steady, prolong the life of cutter simultaneously.
Specifically, the junk slots 230 are provided in a U-shape. Specifically, the chip grooves 230 are formed by grinding through a formed grinding wheel, so that the cost for processing the round nose milling cutter is low, and meanwhile, the efficiency is high; under the action of the formed grinding wheel, the chip discharge groove 230 is arranged in a U shape, so that the space for containing chips is increased and the chip discharge efficiency is improved on the premise of ensuring the rigidity of the cutting part 200.
It can be understood that four side cutting edges 210 are provided, the end edges 220 on two adjacent side cutting edges 210 are oriented differently, and a plurality of chip flutes 230 are respectively located between two adjacent side cutting edges.
Referring to fig. 1 to 7, it can be understood that the rake face of the end edge 220 is provided with a circular arc rake face 240 and a planar rake face 250, the rake angle of the circular arc rake face is-10 °, and the rake angle 251 of the planar rake face is 5 °. The sharpness of the cutting part 200 for cutting a to-be-cut product can be ensured, the tipping resistance of the cutting part 200 is improved, and the whole service life of the round nose milling cutter is prolonged.
Referring to fig. 8, it can be understood that the flank of the end edge is provided with a first relief angle 221, a second relief angle 222; the first relief angle 221 is 7 °, the second relief angle 222 of the end edge is 20 °, and the present application can reduce the friction at the bottom of the cutting part 200 during deep cutting, and improve the chip removal performance during cutting.
Referring to fig. 6, it can be understood that adjacent chip flutes 230 are arranged at different intervals, an angle formed by the intersection of the rake face of each end cutting edge 220 and the rake faces of two adjacent end cutting edges 220 is 98 ° and 82 °, respectively, the arrangement intervals of the end cutting edges 220 are designed to be unequal, correspondingly, an angle formed by the intersection of the rake face of each side cutting edge 210 and the rake faces of two adjacent side cutting edges 210 is also 98 ° and 82 °, respectively, vibration of symmetry of the cutting part 200 during a cutting process is avoided, the cutting process is more stable, and the service life of the cutting part 200 is prolonged.
Referring to fig. 1 to 5, it can be understood that a chip pocket 260 is provided between adjacent two end edges 220, and one end of the chip pocket 260 is connected to one end of the chip pocket 230. The chip groove 260 is used for discharging chips generated on the end edge 220 of the cutting part 200, and the chip groove 260 is arranged between the adjacent end edges 220, so that in the process of machining a workpiece, more chips generated by rough machining can be discharged into the chip groove 230 through the chip groove 260, the chip discharge efficiency is improved, the requirement of rough machining is met, and the influence of the chips generated in the rough machining process on the machining efficiency and effect is avoided.
It can be understood that the chip pocket 260 is a circular arc chip pocket 260, which can better avoid the phenomena of edge breaking and vibration caused by stress concentration of the cutting portion 200 during cutting, so as to generate adverse effects such as errors on a product to be cut.
Referring to fig. 1, it can be understood that the side cutting edge 210 has a spiral angle of 38 °, the rake angle of the flute 230 has an angle of 1 °, the side cutting edge is provided with a circular relief angle 210, and the circular relief angle 210 has an angle of 10 °, which improves chip removal efficiency during cutting.
It can be understood that the surface of the cutting part 200 is provided with a wear-resistant coating, which can improve the wear resistance of the cutting part 200, thereby improving the service life of the round nose milling cutter.
It is understood that the shank 100 is provided in a cylindrical shape, and the shank 100 is integrally formed with the cutting part 200. Specifically, by providing the shank 100 in a cylindrical shape, when the round nose milling cutter of the present application is used, it is convenient to clamp the shank 100 to a machine tool, and to be applied to different jigs. Through with stalk portion 100 and cutting portion 200 integrated into one piece, can also reduce the cost of making the round nose milling cutter of this application embodiment, when making the round nose milling cutter of this application embodiment, can reduce the use of mould, improved the production efficiency of the round nose milling cutter in this application embodiment.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (10)
1. A round nose milling cutter, comprising:
a handle;
the cutting part comprises a plurality of side cutting edges and a plurality of chip grooves; every the one end of side cutting edge with the stalk portion is connected, and the other end of every side cutting edge is provided with the end sword, the side cutting edge with be equipped with the circular arc transition between the end sword, the circular arc radius is 1mm, the side cutting edge is close to the one end of end sword still is equipped with strengthens the face, the width of strengthening the face is greater than the circular arc radius, the side cutting edge is followed the axial lead heliciform setting of stalk portion, every side cutting edge one side corresponds and is provided with the chip groove.
2. The round nose milling cutter as claimed in claim 1, wherein said side cutting edges are provided in four numbers, end edges of adjacent two of said side cutting edges are oriented differently, and a plurality of said chip flutes are respectively located between adjacent two of said side cutting edges.
3. The round nose milling cutter according to claim 1, wherein the end edge has a rake face provided with a circular arc rake face and a flat rake face, the flat rake face is provided near one end of the side cutting edge, the rake angle of the circular arc rake face is-10 °, and the rake angle of the flat rake face is 5 °.
4. The round nose milling cutter according to claim 1, wherein the flank face of the end edge is provided with a first relief angle, a second relief angle; the first relief angle is 7 °, and the second relief angle of the end edge is 20 °.
5. The round nose milling cutter according to claim 2, wherein the adjacent two flutes are arranged at different pitches, and the rake face of each end edge and the rake face of the adjacent two end edges form angles of 98 ° and 82 °, respectively.
6. The round nose milling cutter as claimed in claim 2, wherein a chip flute is provided between the adjacent two end edges, the chip flute communicating with the chip flute.
7. The round nose milling cutter as claimed in claim 6, wherein the chip flutes are circular arc-shaped chip flutes.
8. The round nose milling cutter according to claim 1, wherein the side cutting edge has a helix angle of 38 °, the flute rake angle has an angle of 1 °, and the side cutting edge is provided with a circular arc relief angle having an angle of 10 °.
9. The round nose milling cutter according to claim 1, characterized in that the surface of the cutting portion is provided with a wear resistant coating.
10. The round nose cutter as claimed in claim 1, wherein the shank is provided in a cylindrical shape and the shank is formed integrally with the cutting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122468542.XU CN216575741U (en) | 2021-10-12 | 2021-10-12 | Round nose milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122468542.XU CN216575741U (en) | 2021-10-12 | 2021-10-12 | Round nose milling cutter |
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| Publication Number | Publication Date |
|---|---|
| CN216575741U true CN216575741U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122468542.XU Active CN216575741U (en) | 2021-10-12 | 2021-10-12 | Round nose milling cutter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843443A (en) * | 2021-10-12 | 2021-12-28 | 东莞富兰地工具股份有限公司 | Round nose milling cutter |
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2021
- 2021-10-12 CN CN202122468542.XU patent/CN216575741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113843443A (en) * | 2021-10-12 | 2021-12-28 | 东莞富兰地工具股份有限公司 | Round nose milling cutter |
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