CN103506680B - Cutting blade and milling tool using same - Google Patents
Cutting blade and milling tool using same Download PDFInfo
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- CN103506680B CN103506680B CN201310373286.3A CN201310373286A CN103506680B CN 103506680 B CN103506680 B CN 103506680B CN 201310373286 A CN201310373286 A CN 201310373286A CN 103506680 B CN103506680 B CN 103506680B
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Abstract
The invention discloses a cutting blade and a milling tool using the same. The cutting blade comprises a cutting blade body, which is slightly in a regular triangle plate shape and comprises an upper surface, a lower surface, and side surfaces, which connect the upper surface and the lower surface; the positions between two neighbored side surfaces are individually provided with an arc protruded part relative to the center of the cutting blade, each arc protruded part intersects with the upper surface and forms a protruded first arc cutting blade relative to the circumstance, and each first arc cutting edge forms corresponding summits of a regular triangle through the intersection line between the upper surface and each side surface, and the extension line of the intersection line. The cutting blade and the milling tool using the same has the characteristics of strong profile copying performance, good economy, convenient installation, high positioning precision, large clamping force, and high processed surface quality.
Description
Technical field
The present invention relates to metal cutting tool field, use during more particularly to a kind of material execution copying to cutting
Milling cutter and the cutting tip that is removably mountable on this milling cutter.
Background technology
In profiling processing, because surface to be machined is nearly all curved-surface structure, it is therefore desirable to the cutting of cutting tip
Cutting sword is Circular Nose Cutting Edge, and cutting tip Circular Nose Cutting Edge radius is necessarily less than the arc radius of processed curved surface.So, Circular Nose Cutting Edge
Radius size directly affects the profiling ability of this blade.Generally, the radius of Circular Nose Cutting Edge is less, cutting tip imitative
Shape cutting power is stronger, and the scope of application is wider.
In profiling processing, typically adopt circular shear blade, Fig. 1 is the cutting edge carrying out copying in prior art
Piece, this generally conical tabular of blade body 100, including upper surface 102, lower surface 103, connect upper surface 102 and following table
Radiused cutting edge 107 that the rear knife face 108 in face 103, rear knife face 108 are crossed to form with upper surface 102 and in blade center
Part runs through the installing hole 109 of upper surface 102 and lower surface 103, and wherein rear knife face 108 is the position portion of circular shear blade.Circle
Shape blade is widely used due to edge strength height, good economy performance, highly versatile, and its own construction features.But
Because the cutting edge 107 of circular shear blade is arc-shaped, land unbalance stress everywhere, differ greatly, in order to prevent blade because of stress
The mechanical vibration caused by skewness, the cutting element of general assembling circular shear blade needs the securing member of major diameter to provide
Larger clamping force, therefore, the general radius of installing hole 109 of circular knife is larger, in order to ensure that blade has stronger chip removal energy
Power and impact resistance, must have sufficient space between cutting edge 107 and installing hole 109, so the circle of fuzzy set sword
Arc radius are generally large, and its profiling ability is limited by larger.Generally, the arc radius of fuzzy set sword all exist
More than 3mm is it is impossible to Machining Arc radius is less than the curved surface of 3mm.Especially, in profile milling processing, circular shear blade and cutterhead
It is to be coordinated by taper seat between mounting seat, due to the presence of machining accuracy and assembly precision, knife face after the taper of blade
108 be difficult to ensure card with the locating surface registration accuracy of cutterhead so that blade be assemblied in its cutting edge after cutterhead runout difficult control, assembling
The milling cutter of circular shear blade crudy in profiling processing is difficult to ensure card.
Content of the invention
It is an object of the invention to overcoming the deficiency of prior art, provide a kind of cutting tip and using this cutting tip
Milling tool, it is strong to have a profiling ability, good economy performance, and easy for installation, positioning precision is high, and clamping force is big and finished surface matter
Measure high feature.
The technical solution adopted for the present invention to solve the technical problems is: a kind of cutting tip, including blade body；Described
Blade body is in slightly equilateral triangle tabular, and this blade body has upper surface, lower surface and the side connecting upper and lower surface；
Be also respectively provided with respect to blade center circular arc protuberance outwardly between described each adjacent two sides, this circular arc protuberance with
Upper surface is crossed to form the first radiused cutting edge outwardly with respect to periphery, and described each first radiused cutting edge leads to
Cross the corresponding vertex of upper surface and side intersection and its formed equilateral triangle of extended line.
The circular arc center of circle of described each first radiused cutting edge is respectively positioned on intersection and its extended line institute of upper surface and side
On the angular bisector of composition equilateral triangle.
The arc radius r of described each first radiused cutting edge is all equal, and 1.0mm≤r≤3.5mm.
The described corresponding arc chord angle θ of each first radiused cutting edge is all equal, and 240 ° of 220 ° of ＜ θ ＜.
Described side and upper surface formation angle α, and 70 ° of ＜ α≤90 °, the rear knife face of described cutting edge and upper surface shape
Become angle β, and 70 ° of ＜ β≤90 °.
When described side forms angle α=90 ° with upper surface, and the rear knife face of described cutting edge forms folder with upper surface
During angle beta=90 °, described circular arc protuberance is also crossed to form the second circular arc cutting outwardly with respect to periphery with lower surface
Sword, and described each second radiused cutting edge passes through the corresponding of upper surface and side intersection and its formed equilateral triangle of extended line
Summit.
The circular arc center of circle of described each second radiused cutting edge is respectively positioned on intersection and its extended line institute of upper surface and side
On the angular bisector of composition equilateral triangle；The arc radius r of described each second radiused cutting edge is all equal, and 1.0mm≤r≤
3.5mm；The described corresponding arc chord angle θ of each second radiused cutting edge is all equal, and 240 ° of 220 ° of ＜ θ ＜.
Connect for arc transition between described side and circular arc protuberance.
A kind of milling tool using above-mentioned cutting tip, including cutterhead, described cutterhead is provided with described in install and cuts
The mounting seat of paring blade, described mounting seat includes a supporting bottom surface, two supporting sides and an avoidance hole；Described supporting bottom
Matched with the lower surface of described cutting tip in face, described two supporting sides respectively with described cutting tip adjacent both sides
Face correspondence matches, and between described avoidance hole and described adjacent two sides, set circular arc protuberance is corresponding matches.
Described mounting seat is multiple, is uniformly located at the leading section of cutterhead respectively.
Compared with prior art, the invention has the beneficial effects as follows:
1st, the cutting tip of the present invention, structure is simple, and processing accessibility and edge strength are taken into account, and have 3 circular arcs and cut
Cut sword 7, better economy；
2nd, with respect to blade center outwardly, and each radiused cutting edge radius r is smaller, model for radiused cutting edge
Enclosing is: 1.0mm≤r≤3.5mm, not only possesses the profiling of circular knife, external cutting, the ability of building up by welding, and
Possess the cutting power of special roundlet arc radius curved surface, be particularly well-suited to the smaller shallow slot Milling Process of curved surface arc radius；
3rd, milling cutter is the cutterhead being provided with above-mentioned cutting tip, and the front end of this cutterhead body and Zhou Duanneng installation are described
If cutting tip dry tablet, the installation of cutting tip can be using screws clamp mode, such as to set installing hole in blade center, in knife
Set screw hole in the mounting seat of disk, using screws clamp mode, blade is fixed and lock onto on cutterhead, which has peace
Set position easy, cutting-edge playback accuracy is high, clamping force is big, process the advantages of vibration is little, and machined surface quality is high；
4th, blade adopts equilateral triangle is basic configuration, and three sides and bottom surface are plane, its surface processing accuracy with
And all relatively good guarantee of machining accuracy of side and bottom surface corresponding to described cutterhead mounting seat, and blade body and mounting seat energy
Enough realization positioning well, improve the stability of blade positioning and blade repeats the precision of assembling, prevent in the course of processing
Machining accuracy and the not good caused vibration of assembly precision due to blade and mounting seat；
5th, because described blade adopts equilateral triangle for basic configuration, pore radius is installed and can be designed to relatively large, folder
Tight screw relatively large to the clamping force of blade body it can be ensured that blade, in the stability of working angles, prevents the product vibrating
Raw.
Below in conjunction with drawings and Examples, the present invention is described in further detail；But a kind of cutting tip of the present invention and
Milling tool using this cutting tip is not limited to embodiment.
Brief description
Fig. 1 is the perspective view of the circular shear blade of prior art；
Fig. 2 is the perspective view of the cutting tip of embodiment one present invention；
Fig. 3 is the top view of the cutting tip of embodiment one present invention；
Fig. 4 is the sectional view along the a-a line in Fig. 3；
Fig. 5 is the D structure schematic diagram of the milling cutter of embodiment one present invention；
Fig. 6 is the schematic perspective view of the mounting seat of milling cutter of embodiment one present invention；
Fig. 7 is the assembling schematic diagram of the milling cutter of embodiment one present invention；
Fig. 8 is the b portion enlarged diagram in Fig. 7；
Fig. 9 is the perspective view of the cutting tip of embodiment two present invention；
Figure 10 is the top view of the cutting tip of embodiment two present invention；
Figure 11 is the sectional view along the c-c line in Figure 10；
The D structure schematic diagram of the milling cutter of Figure 12 embodiment two present invention.
Specific embodiment
Embodiment one,
Referring to shown in Fig. 2 to Fig. 8, a kind of cutting tip of the present invention, the hard material such as this cutting tip hard alloy
Form eurymeric blade body 1, its profile is in slightly equilateral triangle tabular, wherein upper surface 2 and lower surface 3 is parallel to each other, lower surface 3
As bearing-surface, side 4 connects upper surface 2 and lower surface 3, and side 4 and upper surface 2 are crossed to form three peripheries 5, in upper surface
2 and the central authorities of lower surface 3, formed the installing hole of blade body 1 through-thickness this upper and lower surface 3 of vertically insertion
9, curved portions 14 are formed on this installing hole 9, curved portions 14 are the contact that pinching screw 11 tapered portion compresses described cutting tip
Region.Additionally, being respectively provided with the circular arc protuberance 6 outwardly with respect to blade mounting holes 9 between each adjacent side, and with upper
Surface 2 is crossed to form the first radiused cutting edge 7 outwardly with respect to periphery 5, and this first radiused cutting edge 7 passes through
The each summit of equilateral triangle of upper surface 2.The circular arc center of circle of described each first radiused cutting edge 7 is respectively positioned on upper surface 2 and side 4
Intersection and its formed equilateral triangle of extended line angular bisector n on.It is circular arc between described side 4 and circular arc protuberance 6
Transition connects.The blade 1 of this form of implementation is rotationally symmetrical in 120 ° with respect to the centrage m of installing hole 9.Positioned at equilateral triangle angle
3 circular arc protuberances 6 in portion and upper surface 2 are crossed to form three section of first radiused cutting edge 7, this three section of first radiused cutting edge
Arc chord angle θ corresponding to 7 is all equal, 240 ° of 220 ° of ＜ θ ＜, and in this form of implementation, arc chord angle takes 236 °.After described cutting edge
Knife face and upper surface are respectively formed angle β, in order to ensure intensity and the profile modeling function of cutting edge, the scope of angle β have been made to require:
90 ° of 70 ° of ＜ β ＜, in this form of implementation, β=79 °, such it is designed with avoidance effect, for reducing after blade knife face 8 in cutting
During friction with workpiece, improve cutter life.Make the size pendulum of the blade body 1 of triangle tabular using said structure
The impact of de- first radiused cutting edge 7 arc radius, can provide enough sharpness, intensity for the first radiused cutting edge 7
And chip space, simultaneously because the Circular Nose Cutting Edge of its 236 ° of arc chord angles is outwardly with respect to periphery 5, thus possessing copying
Ability.The first radiused cutting edge 7 radius due to described cutting tip is r, 1.0mm≤r≤3.5mm, this form of implementation
Middle r=1.5mm, so this blade can apply in the profiling processing of circular shear blade incompetent minor radius curved surface.
In this form of implementation, described three sides 4 of cutting tip and lower surface 3 are straight locating surface.As shown in fig. 6, knife
The mounting seat 13 of disk 10 has a supporting bottom surface 13a and two supporting side 13b and 13c, and they are all planes, are cut by described
The locating surface of paring blade contacts and aligns with the supporting bottom surface 13a and two supporting side 13b and 13c of described cutterhead mounting seat 13,
Replace taper seat location structure of the prior art, contact more close and firm, thus relatively efficiently reducing in working angles
Vibration, improves surface of the work crudy, can reduce the manufacture essence to cutting tip side 4 and milling cutter 12 itself simultaneously
Degree requires, and is effectively improved the position reproduction precision of the first radiused cutting edge 7 of cutting tip and the knot of milling cutter 12
Structure stability.Replace existing monoblock type little sword footpath profiling cutter.The corresponding arc radius of cutting edge 7 are r, in positive triangle
The equilateral triangle length of side of the blade 1 of shape tabular is l, for ensureing that cutting tip has preferable intensity and chip space, 0.09l
≤ r≤0.14l, in this form of implementation, r=0.14l.Side 4 forms angle α with upper surface 2, in order to ensure the peace of cutting tip
Set position and profiling function, the scope of angle α has been made to require: 70 ° of ＜ α≤90 °, the present embodiment, α=79 °.
A kind of milling tool using above-mentioned cutting tip of the present invention, this milling tool includes cutterhead 10, on cutterhead 10
Installing just like the cutting tip 1 of the present embodiment is five, eurymeric blade.This eurymeric cutting tip is positioned knife in the following manner
On disk 10: side 4 is contacted with the supporting side (13b, 13c) of mounting seat 13 aligns, the supporting bottom surface of lower surface 3 and mounting seat 13
13a contact alignment, and by through the pinching screw 11 of blade center's installing hole 9 and mounting seat 13 upper screwed hole 17 and cutterhead 10
It is connected, as shown in Figure 7 and Figure 8.Especially, to exceed mounting seat peripheral plane 13d general for the upper surface 2 of this blade
0.05mm, blade side 4 is less 0.5 ° than α with the angle of mounting seat peripheral plane 13d～and 1 °, the purpose of do so is so that periphery
5 with the lateral bolster bearing surface (13b, 13c) of mounting seat compression, and side 4 remainder keeps one with lateral bolster bearing surface (13b, 13c)
Fixed interval, to ensure having certain elastic deformation space during blade pressing, strengthens the clamping force to blade for the pinching screw.
Embodiment two,
Referring to shown in Fig. 9 to Figure 12, a kind of cutting tip of the present invention, it is with the difference of embodiment one, described
Side 4 and upper surface 2 form angle α=90 °, and the rear knife face 8 of cutting edge forms angle β=90 ° with upper surface 2, described
Circular arc protuberance is also crossed to form the second radiused cutting edge 71 outwardly with respect to periphery with lower surface, and described each second
Radiused cutting edge 71 passes through the corresponding vertex of lower surface 3 and side intersection and its formed equilateral triangle of extended line.So, should
Cutting tip just has three the first radiused cutting edge 7 and three the second radiused cutting edge 71, and the first radiused cutting edge 7
Shape design all same with the second radiused cutting edge 71.Taking the first radiused cutting edge 7 as a example, the first radiused cutting edge
Chip-breaker near 7 extends toward blade mounting holes 9 direction, the angle of chip-breaker front portion straightway 16 and side 4 be 79 ° it is ensured that
Cutting edge 7 has certain sharpness and intensity, and blade body 1 is symmetrical with regard to the mid-plane on upper and lower surface 2,3, therefore should
Curved portions 15a symmetrical with regard to above-mentioned mid-plane and curved portions 15b are had on blade mounting holes 9.Due to above-mentioned change,
The upper and lower surface of this form of implementation 2,3 can use with the cutting edge of rear knife face 8, and cutting edge quantity increases to 6, the blade longevity
Life extends, and economy is more preferable.
A kind of milling tool using above-mentioned cutting tip of the present invention, similar with the milling tool of embodiment one, its
Differ primarily in that: install just like the minus knife illustrated by cutting tip second form of implementation on the cutterhead 10 of this milling tool
Piece, cutting tip side 4 is 90 ° with the angle of mounting seat peripheral plane 13d.
It is explained above the milling cutter as form of implementation of the present invention, but the invention is not restricted to this, can be without departing from this
Carry out suitable change in the range of the technological thought of invention.For example although in the form of implementation of the present invention, such as Fig. 5-Fig. 7,
The mounting seat 13 of the cutterhead 10 shown in Figure 12 separates in the circumferential and is equally spaced apart to be provided with five, but not limited to this, permissible
Arbitrarily set the quantity of mounting seat 13, preferably the material being cut material and machining condition etc. are taken into account and fitted
When setting, in addition, configuring mounting seat 13 by separating unequal compartment of terrain in the circumferential, so can prevent milling cutter 12
Resonance.Again for example, above-mentioned form of implementation is illustrated for the cutting tip 1 of equilateral triangle to basic configuration, but does not limit
In this, cutting tip 1 can be designed using other shapes.
In addition although be illustrated but it is also possible to not to the cutting tip of the installing hole 9 with through-thickness insertion
Setting installing hole 9, for example with the clamping mode of pressing plate compression.
Above-mentioned simply presently preferred embodiments of the present invention, not makees any pro forma restriction to the present invention.Although the present invention
Disclosed above with preferred embodiment, but it is not limited to the present invention.Any those of ordinary skill in the art, are not taking off
In the case of technical solution of the present invention scope, all can be utilized the technology contents of the disclosure above that technical solution of the present invention is made perhaps
How possible variation and modification, or it is revised as equivalents Equivalent embodiments.Therefore, every without departing from technical solution of the present invention
Content, according to the technology of the present invention essence to any simple modification made for any of the above embodiments, equivalent variations and modification, all should fall
In the range of technical solution of the present invention protection.
Claims (9)
1. a kind of cutting tip, including blade body；It is characterized in that: described blade body is in slightly equilateral triangle tabular, this knife
Piece body has upper surface, lower surface and the side connecting upper and lower surface；It is also respectively provided with phase between each adjacent two sides
For blade center's circular arc protuberance outwardly, this circular arc protuberance and upper surface are crossed to form with respect to periphery outwardly
First radiused cutting edge, and each first radiused cutting edge is formed positive three by upper surface with side intersection and its extended line
Angular corresponding vertex；
The described corresponding arc chord angle θ of each first radiused cutting edge is all equal, and 240 ° of 220 ° of ＜ θ ＜.
2. cutting tip according to claim 1 it is characterised in that: the circular arc center of circle of described each first radiused cutting edge
It is respectively positioned on upper surface and the intersection of side and its angular bisector of the formed equilateral triangle of extended line.
3. cutting tip according to claim 1 it is characterised in that: the arc radius of described each first radiused cutting edge
R is all equal, and 1.0mm≤r≤3.5mm.
4. the cutting tip according to claim 1 or 2 or 3 it is characterised in that: described side and upper surface form angle α,
And 70 ° of ＜ α≤90 °, the rear knife face of described cutting edge forms angle β with upper surface, and 70 ° of ＜ β≤90 °.
5. cutting tip according to claim 4 it is characterised in that: when described side and upper surface formed angle α=
90 °, and when the rear knife face of described cutting edge forms angle β=90 ° with upper surface, described circular arc protuberance is also intersected with lower surface
Formed with respect to periphery the second radiused cutting edge outwardly, and described each second radiused cutting edge pass through lower surface with
Side intersection and its corresponding vertex of the formed equilateral triangle of extended line.
6. cutting tip according to claim 5 it is characterised in that: the circular arc center of circle of described each second radiused cutting edge
It is respectively positioned on lower surface and the intersection of side and its angular bisector of the formed equilateral triangle of extended line；Described each second circular arc
The arc radius r of cutting edge is all equal, and 1.0mm≤r≤3.5mm；The described corresponding circular arc of each second radiused cutting edge
Angle θ is all equal, and 240 ° of 220 ° of ＜ θ ＜.
7. cutting tip according to claim 1 it is characterised in that: between described side and circular arc protuberance be arc transition
Connect.
8. a kind of milling tool of the cutting tip using as described in any claim in claim 1-7 it is characterised in that:
Including cutterhead, described cutterhead is provided with the peace for installing the cutting tip as described in any claim in claim 1-7
Dress seat, described mounting seat includes a supporting bottom surface, two supporting sides and an avoidance hole；Described supporting bottom surface is cut with described
The lower surface of paring blade matches, and described two supporting sides are corresponding with described cutting tip adjacent two sides respectively to match
Close, between described avoidance hole and described adjacent two sides, set circular arc protuberance is corresponding matches.
9. milling tool according to claim 8 it is characterised in that: described mounting seat be multiple, be uniformly located at respectively
The leading section of cutterhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373286.3A CN103506680B (en) | 2013-08-23 | 2013-08-23 | Cutting blade and milling tool using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310373286.3A CN103506680B (en) | 2013-08-23 | 2013-08-23 | Cutting blade and milling tool using same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103506680A CN103506680A (en) | 2014-01-15 |
| CN103506680B true CN103506680B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310373286.3A Active CN103506680B (en) | 2013-08-23 | 2013-08-23 | Cutting blade and milling tool using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2778708C2 (en) * | 2017-11-20 | 2022-08-23 | Искар Лтд. | Indexable cutting insert of triangular shape with deepened side surfaces, and rotating cutting tool |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101669560B1 (en) * | 2015-04-17 | 2016-11-10 | 한국야금 주식회사 | Cutting insert |
| JP6740606B2 (en) * | 2015-07-31 | 2020-08-19 | 三星ダイヤモンド工業株式会社 | Cutter wheel |
| US10035199B2 (en) | 2016-06-30 | 2018-07-31 | Iscar, Ltd. | Cutting tool and triangular-shaped indexable cutting insert therefor |
| DE102016008089A1 (en) | 2016-06-30 | 2018-01-04 | Iscar Ltd. | Cutting tool and triangular indexable cutting insert for it |
| US10632548B2 (en) * | 2017-11-20 | 2020-04-28 | Iscar, Ltd. | Triangular-shaped indexable cutting insert having recessed side surfaces and rotary cutting tool |
| CN109648806B (en) * | 2018-11-16 | 2024-01-02 | 温州海航机械有限公司 | Multi-station material shearing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE454420B (en) * | 1984-05-14 | 1988-05-02 | Santrade Ltd | HAPPENS FOR LONG, SLIPPING OR COPYRUPTING |
| US5308197A (en) * | 1990-01-23 | 1994-05-03 | Threading Systems, Inc. | Machining apparatus |
| KR101130430B1 (en) * | 2007-02-16 | 2012-03-27 | 대구텍 유한회사 | Double-sided cutting insert and milling cutter mounting the same |
| CN101823162B (en) * | 2010-04-29 | 2012-07-25 | 株洲钻石切削刀具股份有限公司 | Turning tool with double layers of staggered cutting head parts |
| CN102248190B (en) * | 2011-06-28 | 2013-04-10 | 株洲钻石切削刀具股份有限公司 | Profiling blade and profiling cutter |
-
2013
- 2013-08-23 CN CN201310373286.3A patent/CN103506680B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2778708C2 (en) * | 2017-11-20 | 2022-08-23 | Искар Лтд. | Indexable cutting insert of triangular shape with deepened side surfaces, and rotating cutting tool |
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| CN103506680A (en) | 2014-01-15 |
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