CN104014860A - Fine finishing milling blade and milling cutter - Google Patents
Fine finishing milling blade and milling cutter Download PDFInfo
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- CN104014860A CN104014860A CN201410237130.7A CN201410237130A CN104014860A CN 104014860 A CN104014860 A CN 104014860A CN 201410237130 A CN201410237130 A CN 201410237130A CN 104014860 A CN104014860 A CN 104014860A
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- milling
- cutting edge
- cutter
- cutting
- fine finishining
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Abstract
The invention discloses a fine finishing milling blade and a milling cutter; the fine finishing milling blade comprises a polygonal plate-shaped blade body, the blade body comprises an upper surface, a lower surface and a plurality of side surfaces connecting the upper surface and the lower surface, a plurality of cutting edges are formed by crossing of the upper surface and the lower surface, the plurality of cutting edges comprise at least one arched cutting edge, a high convex point of the arched cutting edge is located between two end points of the arched cutting edge, the distance H, along the circumferential direction of the arched cutting edge, between at least one end point and the high convex point of the arched cutting edge is not less than 0.05mm, the curvature radius of the high convex point is R, and the R is greater than or equal to 200mm and less than or equal to 1500mm. The fine finishing milling blade has the advantages of high processing precision and small cutting vibration. The milling cutter comprises a cutter body, the cutter body is provided with a first cutter groove, and also includes the fine finishing milling blade, the blade body of the fine finishing milling blade is fixedly arranged in the first cutter groove, and the milling cutter correspondingly has the advantages of high processing precision and small cutting vibration.
Description
Technical field
The present invention relates to cutting tool, relate in particular to a kind of fine finishining milling cutting insert and milling cutter thereof.
Background technology
The common employing of milling cutter is only equipped with a kind of fine finishining blade or fine finishining blade is housed and the structure of two kinds of blades of main cutting blade realizes the fine finishining of milling cutter, along with manufacturing high speed development, fine finishining milling cutter requires to have more and more higher crudy, the surface roughness of the workpiece of processing even requires to reach below Ra0.4, so high surface quality requirement, even if exist very little rake angle still can cause machined surface quality undesirable with horizontal direction when the cutting edge feeding of straight line, in the time of the complete level of linear pattern cutting edge, can reach accurately machined requirement in theory, but due to the existence of manufacture and rigging error, be difficult to make the complete level of multiple fine finishining milling cutting insert linear cutting edge on milling cutter, therefore, the fine finishining difficulty that linear pattern cutting edge is realized milling cutter is larger, be difficult to extensive use.
Industry is interior for easy to use and reduction manufacture difficulty, a fine finishining milling cutting insert with circular arc cutting edge can be set on milling cutter, while utilizing circular arc cutting edge to carry out fine finishining, can reduce the required precision to manufacturing and assembling, thereby raising versatility, but in actual use, in order to improve machined surface quality, it is even higher above that circular arc cutting edge radius often need to reach 500mm, cutting edge and the finished surface contact length of so large radius are larger, add man-hour blade stressed larger, when cutting, easily produce vibration, simultaneously, add man-hour carrying out facing cut, in the time that workpiece cutting width is greater than milling-cutting cutter disc diameter, need to repeatedly cut Surface Machining, the cutting edge of large radius is in the time of cutting surface repeatedly, adjacent twice milling surface easily forms step.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, and a kind of machining accuracy is high, machined surface quality is high and cutting vibration is little fine finishining milling cutting insert and milling cutter thereof are provided.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of fine finishining milling cutting insert, comprise the blade body that polygon is tabular, described blade body comprises upper surface, lower surface and connect multiple sides of described upper surface and lower surface, the multiple cutting edges of described side formation crossing with described upper surface, in multiple described cutting edges, be at least provided with an arch cutting edge, high salient point on described arch cutting edge is between two end points of described arch cutting edge, in described arch cutting edge, between at least one end points and described high salient point, be not less than 0.05mm along the circumferential distance H of described arch cutting edge, the radius of curvature at described high salient point place is R, and 200mm≤R≤1500mm.
Further improvement as technique scheme:
Described at least one, the radius of curvature at end points place is r, and 30mm≤r≤150mm.
Described arch cutting edge is radius of curvature continually varying smoothed curve, and the radius of curvature at the middle part of described arch cutting edge is greater than the radius of curvature at both ends.
Described arch cutting edge is oval camber line.
Described arch cutting edge is the smoothed curve of the circular arc composition that more than two radius difference, length are different.
In described blade body, offer installing hole.
A kind of milling cutter, comprises cutter hub, offers the first cutter groove on described cutter hub, and described milling cutter also comprises above-mentioned fine finishining milling cutting insert, and described blade body is fixedly installed in described the first cutter groove.
Further improvement as technique scheme:
Described milling cutter also comprises the first securing member, and described the first securing member is fixed on described blade body in described the first cutter groove.
On described cutter hub, also offer the second cutter groove, described milling cutter also comprises main milling cutting insert, and described main milling cutting insert is fixedly installed in described the second cutter groove.
The cutting depth of described arch cutting edge is H1, and the cutting depth that described main milling cutting insert is corresponding with described arch cutting edge is H2, and 0.02mm≤H1-H2≤0.15mm.
In described the first cutter groove, be provided with blade guiding mechanism, can adjust by described blade guiding mechanism the cutting depth H1 of described blade body.
Compared with prior art, the invention has the advantages that:
(1) fine finishining milling cutting insert of the present invention, comprise the blade body that polygon is tabular, blade body comprises upper surface, multiple sides of lower surface and connection upper surface and lower surface, the multiple cutting edges of side formation crossing with upper surface, in multiple cutting edges, be at least provided with an arch cutting edge, high salient point on arch cutting edge is between two end points of arch cutting edge, in arch cutting edge, between at least one end points and high salient point, be not less than 0.05mm along the circumferential distance H of arch cutting edge, the radius of curvature at high salient point place is R, and 200mm≤R≤1500mm, fine finishining milling cutting insert in the present invention is in the time carrying out Surface Finishing, can ensure machined surface quality, effectively eliminate the remaining step between adjacent milling width, can reduce again the contact length of arch cutting edge and workpiece, thereby reduce cutting force and cutting vibration, improve the service life of fine finishining milling cutting insert.
(2) milling cutter of the present invention comprises cutter hub, on cutter hub, offer the first cutter groove, also comprise fine finishining milling cutting insert of the present invention, fine finishining milling cutting insert is fixedly installed in described the first cutter groove, and fine finishining milling cutter of the present invention is simple in structure, and can ensure polished surface quality, effectively eliminate the remaining step between adjacent milling width, the contact length that can reduce again cutting edge and workpiece, reduces cutting vibration, has improved the scope of application and the service life of milling cutter.
Brief description of the drawings
Fig. 1 is the perspective view of fine finishining milling cutting insert the first embodiment of the present invention.
Fig. 2 is the top view of fine finishining milling cutting insert the first embodiment of the present invention.
Fig. 3 is the perspective view of fine finishining milling cutting insert the second embodiment of the present invention.
Fig. 4 is the front view of fine finishining milling cutting insert the second embodiment of the present invention.
Fig. 5 is the top view of fine finishining milling cutting insert the second embodiment of the present invention.
Fig. 6 is the perspective view of milling cutter of the present invention.
Fig. 7 is the front view of milling cutter of the present invention.
In figure, each label represents:
1, blade body; 2, upper surface; 3, lower surface; 4, side; 5, cutting edge; 51, arch cutting edge; 511, high salient point; 512, end points; 6, installing hole; 7, cutter hub; 71, the first cutter groove; 72, the second cutter groove; 8, the first securing member; 9, blade guiding mechanism; 11, main milling cutting insert.
Detailed description of the invention
Below with reference to Figure of description and specific embodiment, the present invention is described in further details.
As Fig. 1 and Fig. 2 show the first embodiment of fine finishining milling cutting insert of the present invention, this fine finishining milling cutting insert comprises the tabular blade body of polygon 1, blade body 1 comprises upper surface 2, multiple sides 4 of lower surface 3 and connection upper surface 2 and lower surface 3, the multiple cutting edges 5 of side 4 formation crossing with upper surface 2, in multiple cutting edges 5, be at least provided with an arch cutting edge 51, high salient point 511 on arch cutting edge 51 is between two end points 512 of arch cutting edge 51, in arch cutting edge 51, between at least one end points 512 and high salient point 511, be not less than 0.05mm along the circumferential distance H of arch cutting edge 51, in the present embodiment, between high salient point 511 and the right side end points 512 of arch cutting edge 51, equal 0.07mm along the circumferential distance H of arch cutting edge 51, the radius of curvature at high salient point 511 places is R, and should meet: 200mm≤R≤1500mm, the radius of curvature R at high salient point 511 places need be arranged in above-mentioned zone of reasonableness, just can reach the object of eliminating the remaining step between adjacent milling width, in the present embodiment, R equals 800mm, fine finishining milling cutting insert in the present embodiment is in the time carrying out Surface Finishing, can ensure machined surface quality, effectively eliminate the remaining step between adjacent milling width, can reduce again the contact length of arch cutting edge 51 and workpiece, thereby reduce cutting force and cutting vibration, improve the service life of fine finishining milling cutting insert.
The radius of curvature at least one end points 512 place is r, and 30mm≤r≤150mm, and it is interior to ensure cutting effect that r need be arranged on rational scope, and in the present embodiment, the radius of curvature at right side end points 512 places of arch cutting edge 51 is set to 80mm.
In the present embodiment, arch cutting edge 51 is radius of curvature continually varying smoothed curve, and the radius of curvature at the middle part of arch cutting edge 51 is greater than the radius of curvature at both ends, the centre position of arch cutting edge 51 has maximum radius of curvature, thereby ensures best fine finishining effect.
In the present embodiment, arch cutting edge 51 is oval camber line.
In the present embodiment, in blade body 1, offer installing hole 6, to facilitate, fine finishining milling cutting insert is installed on milling cutter, except the mode of the present embodiment, according to the difference of practical application, also the blade body of fine finishining milling cutting insert 1 can be designed to the structure without installing hole.
Fig. 3 to Fig. 5 shows the second embodiment of fine finishining milling cutting insert of the present invention, this embodiment is only from the difference of the first embodiment: arch cutting edge 51 is the smoothed curve that the different and radius of two length is respectively the circular arc composition of R and r, except the present embodiment, arch cutting edge 51 can also be the smoothed curve being made up of more than three radius difference, circular arc that length is different.
Fig. 6 and Fig. 7 show a kind of embodiment of milling cutter of the present invention, this milling cutter comprises cutter hub 7, on cutter hub 7, offer the first cutter groove 71, also comprise above-mentioned fine finishining milling cutting insert, and the blade body 1 of fine finishining milling cutting insert is fixedly installed in the first cutter groove 71, the milling cutter of the present embodiment is by arranging the fine finishining milling cutting insert in above-described embodiment, and can ensure polished surface quality, effectively eliminate the remaining step between adjacent milling width, can reduce again the contact length of cutting edge 5 and workpiece, reduce cutting vibration, the scope of application and the service life of milling cutter are improved.
In the present embodiment, on cutter hub 7, offer two the first cutter grooves 71, two interior fine finishining milling cutting inserts that are fixedly installed respectively two different parameters of the first cutter groove 71, thereby meet higher Surface Finishing requirement, except the present embodiment, also can be according to practical application request, multiple the first cutter grooves 71 fine finishining milling cutting insert different with parameter is set on cutter hub 7.
In the present embodiment, milling cutter also comprises that the first securing member 8, the first securing members 8 are fixed on blade body 1 in the first cutter groove 71.
In the present embodiment, on cutter hub 7, also offer the second cutter groove 72, milling cutter also comprises main milling cutting insert 11, main milling cutting insert 11 is fixedly installed in the second cutter groove 72, main milling cutting insert 11 and fine finishining milling cutting insert are set on cutter hub 7 simultaneously, can complete by cutting at one time roughing and the fine finishining of workpiece, improve the milling efficiency of milling cutter.
The cutting depth of arch cutting edge 51 is H1, the cutting depth that main milling cutting insert 11 is corresponding with arch cutting edge 51 is H2, for arch cutting edge 51 can effectively cut and reach its fine finishining effect, should meet: 0.02mm≤H1-H2≤0.15mm, in the present embodiment, H1-H2 equals 0.05mm.
In the present embodiment, in the first cutter groove 71, be provided with blade guiding mechanism 9, can adjust by blade guiding mechanism 9 the cutting depth H1 of blade body 1.
Although the present invention discloses as above with preferred embodiment, but not in order to limit the present invention.Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible variations and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (11)
1. a fine finishining milling cutting insert, comprise the tabular blade body of polygon (1), described blade body (1) comprises upper surface (2), lower surface (3) and connect described upper surface (2) and multiple sides (4) of lower surface (3), described side (4) the multiple cutting edges of formation crossing with described upper surface (2) (5), it is characterized in that: in described cutting edge (5), be at least provided with an arch cutting edge (51), high salient point (511) on described arch cutting edge (51) is positioned between two end points (512) of described arch cutting edge (51), in described arch cutting edge (51), between at least one end points (512) and described high salient point (511), be not less than 0.05mm along the circumferential distance H of described arch cutting edge (51), the radius of curvature that described high salient point (511) is located is R, and 200mm≤R≤1500mm.
2. fine finishining milling cutting insert according to claim 1, is characterized in that: the radius of curvature that end points described at least one (512) is located is r, and 30mm≤r≤150mm.
3. fine finishining milling cutting insert according to claim 2, is characterized in that: described arch cutting edge (51) is radius of curvature continually varying smoothed curve, and the radius of curvature at the middle part of described arch cutting edge (51) is greater than the radius of curvature at both ends.
4. fine finishining milling cutting insert according to claim 3, is characterized in that: described arch cutting edge (51) is oval camber line.
5. fine finishining milling cutting insert according to claim 3, is characterized in that: described arch cutting edge (51) is the smoothed curve of the circular arc composition that more than two radius difference, length are different.
6. according to fine finishining milling cutting insert described described in any one in claim 1 to 5, it is characterized in that: in described blade body (1), offer installing hole (6).
7. a milling cutter, comprise cutter hub (7), on described cutter hub (7), offer the first cutter groove (71), it is characterized in that: also comprise the fine finishining milling cutting insert described in any one in claim 1 to 6, described blade body (1) is fixedly installed in described the first cutter groove (71).
8. milling cutter according to claim 7, is characterized in that: described milling cutter also comprises the first securing member (8), and described the first securing member (8) is fixed on described blade body (1) in described the first cutter groove (71).
9. according to the milling cutter described in claim 7 or 8, it is characterized in that: on described cutter hub (7), also offer the second cutter groove (72), described milling cutter also comprises main milling cutting insert (11), and described main milling cutting insert (11) is fixedly installed in described the second cutter groove (72).
10. milling cutter according to claim 9, it is characterized in that: the cutting depth of described arch cutting edge (51) is H1, the cutting depth that described main milling cutting insert (11) is corresponding with described arch cutting edge (51) is H2, and 0.02mm≤H1-H2≤0.15mm.
11. milling cutters according to claim 10, is characterized in that: in described the first cutter groove (71), be provided with blade guiding mechanism (9), can adjust by described blade guiding mechanism (9) the cutting depth H1 of described blade body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237130.7A CN104014860A (en) | 2014-05-30 | 2014-05-30 | Fine finishing milling blade and milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410237130.7A CN104014860A (en) | 2014-05-30 | 2014-05-30 | Fine finishing milling blade and milling cutter |
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| Publication Number | Publication Date |
|---|---|
| CN104014860A true CN104014860A (en) | 2014-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410237130.7A Pending CN104014860A (en) | 2014-05-30 | 2014-05-30 | Fine finishing milling blade and milling cutter |
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| Country | Link |
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| CN (1) | CN104014860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109789496A (en) * | 2016-09-29 | 2019-05-21 | 住友电工硬质合金株式会社 | Cutting element |
| CN114226820A (en) * | 2022-01-12 | 2022-03-25 | 百斯图工具制造有限公司 | Milling blade and milling cutter with fast-forward and square shoulder |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294565A (en) * | 1980-03-06 | 1981-10-13 | General Electric Company | Indexable finishing insert for a milling cutter |
| CN1138837A (en) * | 1994-01-14 | 1996-12-25 | 桑德维克公司 | Indexable insert for finish milling and cutter body therefor |
| CN1482953A (en) * | 2000-08-29 | 2004-03-17 | ��Ұ������ʽ���� | Cutting insert with curved cutting edge |
| CN2650917Y (en) * | 2003-11-28 | 2004-10-27 | 株洲钻石切削刀具股份有限公司 | Rotary milling blade |
| CN1775436A (en) * | 2005-12-13 | 2006-05-24 | 株洲钻石切削刀具股份有限公司 | Big-feed milling blade |
| CN1806980A (en) * | 2006-01-23 | 2006-07-26 | 株洲钻石切削刀具股份有限公司 | Rough and refined machining composite milling cutter |
| CN1849192A (en) * | 2003-12-23 | 2006-10-18 | 埃莫克精密工具厂里查德格林普尔有限责任两合公司 | Cutting element and tool equipped with at least one cutting element |
| CN101474690A (en) * | 2009-01-13 | 2009-07-08 | 株洲钻石切削刀具股份有限公司 | Rotatable blade for face milling and processing |
| CN103328143A (en) * | 2011-01-27 | 2013-09-25 | 特固克有限会社 | Tangential cutting insert |
| CN103582538A (en) * | 2011-07-29 | 2014-02-12 | 株式会社钨钛合金 | Cutting insert and rotating cutting tool |
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2014
- 2014-05-30 CN CN201410237130.7A patent/CN104014860A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4294565A (en) * | 1980-03-06 | 1981-10-13 | General Electric Company | Indexable finishing insert for a milling cutter |
| CN1138837A (en) * | 1994-01-14 | 1996-12-25 | 桑德维克公司 | Indexable insert for finish milling and cutter body therefor |
| CN1482953A (en) * | 2000-08-29 | 2004-03-17 | ��Ұ������ʽ���� | Cutting insert with curved cutting edge |
| CN2650917Y (en) * | 2003-11-28 | 2004-10-27 | 株洲钻石切削刀具股份有限公司 | Rotary milling blade |
| CN1849192A (en) * | 2003-12-23 | 2006-10-18 | 埃莫克精密工具厂里查德格林普尔有限责任两合公司 | Cutting element and tool equipped with at least one cutting element |
| CN1775436A (en) * | 2005-12-13 | 2006-05-24 | 株洲钻石切削刀具股份有限公司 | Big-feed milling blade |
| CN1806980A (en) * | 2006-01-23 | 2006-07-26 | 株洲钻石切削刀具股份有限公司 | Rough and refined machining composite milling cutter |
| CN101474690A (en) * | 2009-01-13 | 2009-07-08 | 株洲钻石切削刀具股份有限公司 | Rotatable blade for face milling and processing |
| CN103328143A (en) * | 2011-01-27 | 2013-09-25 | 特固克有限会社 | Tangential cutting insert |
| CN103582538A (en) * | 2011-07-29 | 2014-02-12 | 株式会社钨钛合金 | Cutting insert and rotating cutting tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109789496A (en) * | 2016-09-29 | 2019-05-21 | 住友电工硬质合金株式会社 | Cutting element |
| CN114226820A (en) * | 2022-01-12 | 2022-03-25 | 百斯图工具制造有限公司 | Milling blade and milling cutter with fast-forward and square shoulder |
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Application publication date: 20140903 |