CN204277044U - Minus milling cutting insert - Google Patents
Minus milling cutting insert Download PDFInfo
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- CN204277044U CN204277044U CN201420653925.1U CN201420653925U CN204277044U CN 204277044 U CN204277044 U CN 204277044U CN 201420653925 U CN201420653925 U CN 201420653925U CN 204277044 U CN204277044 U CN 204277044U
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Abstract
The utility model discloses a kind of minus milling cutting insert, comprise blade body, blade body has the outer peripheral face of upper and lower surface and quadrangle, is also provided with the boss of through hole and surrounding thereof, and outer peripheral face configures main cutting edge and wiper edges successively alternately; Described main cutting edge is concave structure, the close inclination of surperficial opposing face up and down gradually respectively from its two ends, and is formed in the middle part of nonangular smooth main cutting edge in the part at the 1/6-1/3 place of main cutting edge length; Rake face in the middle part of the nonangular smooth main cutting edge of described negative insert body extends the through hole be connected to perpendicular to upper and lower surface with mild positive-angle, and forms the opening chip pocket leading to described through hole at described boss place.The utility model is by designing the concave structure of the main cutting edge of cutting tip, and adopt special hatch frame groove design in conjunction with chip-breaker place, blade support face, cutting force distribution and chip flow can be optimized and carry out from chip breaking process, improving tool sharpening performance and stability.
Description
Technical field
The utility model relates to metal cutting tool field, particularly relates to a kind of indexable minus milling cutting insert machined material being implemented to slabbing processing.
Background technology
In slabbing processing, the carrying out that cutting tool repeats in the process cut out intermittently is processed, the main cutting edge incision to machined material each time all can be subject to huge impact loading, therefore the reasonability of main cutting edge structural design will produce tremendous influence to cutter cutting ability.
In the prior art, the version for slabbing indexable insert tip, throw away tip main cutting edge has following three kinds: one to be that major cutting edge is designed to straightway and lies low be parallel to the upper and lower surface of cutting tip; Two is that major cutting edge is designed to straightway portion but is not parallel to the upper and lower surface of cutting tip, forms certain gradient with upper and lower surface; Three is arc sections main cutting edge being designed to large U type.
But all there is certain defect in above existing three kinds of main cutting edge versions.The first cutting blade structure form is usually used in the flat plate cutting paring blade not with chip-breaker, and chip can reduce the performance of cutting tip from the amount of heat that the locating surface on upper and lower surface directly flows through generation, simultaneously the locating surface on the upper and lower surface of the easy scratch of chip; The cutting tip of the second cutting blade structure form generally has design chip breaking grooved, but because it is that straightway becomes constant slope to extend to another cutting edge by a cutting tooth shape, so drawback is the cutter hub (right hand processing cutter hub or left hand processing cutter hub) that can only be used for single cutting direction, economy is not good; Though the third cutting blade structure form can simultaneously for the cutter hub of different cutting direction, but on arc section, the cutting angle of every bit is inconsistent in the process of large U type cutting edge incision workpiece, be difficult to the overall even distribution ensureing cutting force, be difficult to the whole machine balancing axial force of distribution suffered by cutter and radial load, easily cause cutter unbalance stress to cause machine tool chief axis unbalance stress, negative influence is produced to cutter cutting ability and machine tool chief axis.
When carrying out machining, the chip formed flows through in cutting edge face and abutment surface, if Chip grooves structural design is improper, one is that chip flow is not smooth, two is easily because of the more heat in metal cutting of the excessive generation of contact area, three is easily leave Integrated Chip in cutting edge face and abutment surface, and this all will have a negative impact to cutting performance.
In the prior art, reduce the contact of chip and cutting edge adjacent surface mainly through two kinds of modes, one is adopt the chip breaking grooved pattern structure of remaining silent, and two is design stepped section between cutting edge face and adjacent surface.
But, in above existing two kinds of modes, all there is shortcoming.One, the drawback adopting the trench structure of chip breaking grooved decorative pattern of remaining silent to exist is: the chip-breaker that (1) remains silent easily causes chip flow in groove smooth and easy not; (2) in groove, space little Yi forms broken little chip and piles up in chip pocket.Two, the drawback adopting the trench structure designing stepped section between cutting edge face and adjacent surface to exist is: (1) stepped section structure causes cutting edge to eliminate more Hardmetal materials, can reduce the bulk strength of cutting edge; (2) this structural design supporting surface is lower than cutting edge, and chip can be passed through in locating surface surface contact, very easily occurs supporting surface friction scratch, affects positioning precision.
Utility model content
The purpose of this utility model is the deficiency overcoming prior art, a kind of minus milling cutting insert is provided, designed by the concave structure of the main cutting edge to cutting tip, and adopt special hatch frame groove design in conjunction with chip-breaker place, blade support face, cutting force distribution and chip flow can be optimized and carry out from chip breaking process, improving tool sharpening performance and stability.
The utility model solves the technical scheme that its technical problem adopts: a kind of minus milling cutting insert, comprises blade body; Blade body has upper and lower surface parallel each other, and the quadrangle that outer peripheral face is formed, and upper and lower surface angulation crossing with outer peripheral face is right angle; Blade body is provided with the through hole of vertical through upper and lower surface, and through hole surrounding is uniformly distributed the boss of Set and Positioning, and outer peripheral face configures main cutting edge and wiper edges successively alternately; Described main cutting edge is concave structure, the close inclination of surperficial opposing face up and down gradually respectively from its two ends, and is formed in the middle part of nonangular smooth main cutting edge in the part at 1/6 ~ 1/3 place of main cutting edge length; Rake face in the middle part of the nonangular smooth main cutting edge of described blade body is connected to described through hole with the extension of mild positive-angle, and forms the opening chip pocket leading to described through hole at described boss place.
Described main cutting edge is concave structure, forms with the nonangular smooth line part being in middle part by being in the skew lines portion of both sides also in specular; The outer end in described skew lines portion is higher than the Set and Positioning face of described boss, and the inner in described skew lines portion is lower than the Set and Positioning face of described boss; The described nonangular smooth line part being in middle part is connected between the skew lines portion on both sides, and lower than the Set and Positioning face of described boss.
The corresponding rake face of described concave structure main cutting edge is freely scanned by grid surface and is formed, and the change formed cuts front angular region between 6 ° ~ 25 °.
The rake face corresponding to nonangular smooth line part of described concave structure main cutting edge extends the through hole be connected to perpendicular to upper and lower surface with mild positive-angle, and forms the opening chip pocket leading to described through hole at described boss place.
The skew lines portion of the main cutting edge of described cutting edge and the rake face corresponding to wiper edges extend to described boss direction with mild positive-angle, and extended surface forms at boss to distance 1/4 ~ 1/3 place of cutting edge the cutting anterior angle the oblique stepped section of self-assembling formation that increase rapidly.
The oblique stepped section of the rake face of described cutting edge is made up of the oblique stepped section of main cutting edge rake face and the oblique stepped section of wiper edges rake face; In described boss, the side corresponding to the oblique stepped section of main cutting edge rake face is set to the anti-bits face of ramp shaped.
The oblique stepped section of described main cutting edge rake face extends and form the indent chip pocket caved inward between the anti-bits face of described boss.
Described indent chip pocket is connected with described opening chip pocket, and the common chip-breaker forming blade body.
The upper and lower surface of the through hole surrounding of described blade body is uniformly distributed the small boss of Set and Positioning, and the small boss on upper and lower surface is into specular; Four small boss on described upper and lower surface are symmetric with the axis of described through hole.
Four small boss on described upper and lower surface are respectively equipped with word pit.
Described main cutting edge and wiper edges configure alternately and are provided with transition arc and be connected.
A kind of minus milling cutting insert of the present utility model, be designed to the blade body in square 0 ° of relief angle, it comprises upper surface, lower surface, and connects the side (i.e. outer peripheral face) on upper and lower surface, processes for slabbing.This cutting tip is the minus cutting tip of 0 ° of relief angle, has 8 effective main cutting edges and 8 corresponding wiper edges, and two-sided indexable 8 times altogether, its usage economy is high.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model have employed and main cutting edge is designed to concave structure, form with the nonangular smooth line part being in middle part by being in the skew lines portion of both sides also in specular, the outer end in described skew lines portion is higher than the Set and Positioning face of described boss, and the inner in described skew lines portion is lower than the Set and Positioning face of described boss; The described nonangular smooth line part being in middle part is connected between the skew lines portion on both sides, and lower than the Set and Positioning face of described boss.The axial rake design that the cutter hub that this large spill design of the present utility model is combined this cutting tip is special, this cutting tip not only can be made to process incision, cutting edge is segmented into unified most possible angle and successively contacts with machined material and leave when cutting out, improve the incision of cutting edge entirety and bring excessive resistance or different section cutting edge discontinuity thus the impact of reduction cutting ability; And the design of the spill main cutting edge of this cutting tip can add axial force and the radial load of cutting edge in man-hour by active balance slabbing, avoid causing spindle vibration because radial load is excessive and cutting not brisk negative influence; Adopt this cutting tip of special large spill main cutting edge structural design to can be used for right-hand man's cutterhead simultaneously, there is higher economy.
2, the utility model have employed the rake face corresponding to nonangular smooth line part main cutting edge being in middle part and extends the through hole be connected to perpendicular to upper and lower surface with mild positive-angle, and leads to the opening chip pocket of described through hole in the formation of described boss place.And the skew lines portion of the main cutting edge of described cutting edge and the rake face corresponding to wiper edges extend to described boss direction with mild positive-angle, extended surface forms at boss to distance 1/4 ~ 1/3 place of cutting edge the cutting anterior angle the oblique stepped section of self-assembling formation that increase rapidly.The upper and lower surface of through hole surrounding is uniformly distributed the small boss of Set and Positioning, the side corresponding to the oblique stepped section of main cutting edge rake face in boss is set to the anti-bits face of ramp shaped; The special construction chip-breaker formed by said structure, under different cutting depth conditions, the chip flow of different in width is by well reducing the CONTACT WITH FRICTION with rake face during rake face, and form that natural flow is curling even flies away from cutting tip body from chip breaking, the heat and the scratch that reduce CONTACT WITH FRICTION generation affect positioning precision, and opening chip pocket plays the good action guiding the chip space of chip flow and increase to avoid chip to pile up further simultaneously; Therefore this chip breaking trench structure has that to optimize chip flow curling and even carry out from chip breaking processing capacity, thus raising tool sharpening performance and stability.
Below in conjunction with drawings and Examples, the utility model is described in further detail; But a kind of minus milling cutting insert of the present utility model is not limited to embodiment.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is top view of the present utility model;
Fig. 3 is front view of the present utility model;
Fig. 4 is the sectional view along A-A line in Fig. 2;
Fig. 5 analyses and observe rotation diagram along B-B line in Fig. 2;
Fig. 6 is the C portion enlarged diagram in Fig. 5;
Fig. 7 is the D portion enlarged diagram in Fig. 5;
Fig. 8 is the perspective view that the utility model is matched in cutter hub;
Fig. 9 is the front view that the utility model is matched in cutter hub.
In figure, 1, blade body; 10, small boss; 11, opening chip pocket; 12, indent chip pocket; 13, knife face after wiper edges; 14, knife face after main cutting edge; 15, small boss is counter considers face to be worth doing; 16, through hole; 17, supporting cutterhead body; 18, edge bearing body is coordinated; 2, main cutting edge; 21, main cutting edge skew lines portion; 22, main cutting edge lies low line part; 3, the transition arc of main cutting edge and wiper edges; 4, wiper edges; 5, wiper edges rake face; 6, main cutting edge rake face; 61, main cutting edge skew lines portion rake face; 62, main cutting edge lies low line part rake face; 7, the oblique stepped section of main cutting edge rake face; 8, the oblique stepped section of wiper edges rake face; 9, mark or character pit.
Detailed description of the invention
Embodiment
See shown in Fig. 1 to Fig. 9, a kind of minus milling cutting insert of the present utility model, comprises blade body 1; Blade body 1 has upper and lower surface parallel each other, and the quadrangle that outer peripheral face (i.e. side) is formed, and upper and lower surface angulation crossing with outer peripheral face is right angle (i.e. the blade body of 0 ° of relief angle); Described blade body 1 is provided with the through hole 16 on a vertical through upper and lower surface, and the surrounding of through hole 16 is uniformly distributed the boss of Set and Positioning; The upper and lower surface of described blade body 1 forms rake face respectively, side forms rear knife face, the intersection crest line of described rake face and rear knife face forms cutting edge, described cutting edge comprises the main cutting edge 2 on the limit being in quadrangle and is in the wiper edges 4 at angle of quadrangle, and namely outer peripheral face configures main cutting edge 2 and wiper edges 4 successively alternately; Described main cutting edge 2 is concave structure, and described main cutting edge 2 is concave structure, the close inclination of surperficial opposing face up and down gradually respectively from its two ends, and is formed in the middle part of nonangular smooth main cutting edge in the part at 1/6 ~ 1/3 place of main cutting edge length; That is, main cutting edge 2 is by the nonangular smooth line part 22 be in the middle part of main cutting edge and is in main cutting edge both sides and skew lines portion 21 in specular is formed; The outer end in described skew lines portion 21 is higher than the Set and Positioning face of described boss, the inner in described skew lines portion 21 is lower than the Set and Positioning face of described boss, described smooth line part 22 is connected between the skew lines portion 21 on both sides, and lower than the Set and Positioning face of described boss.The boss on the upper and lower surface of blade body 1 is set to disjunct four small boss 10 respectively, and the small boss 10 on upper and lower surface is into specular; Four small boss 10 on described upper and lower surface are symmetric with the axis of described through hole 16.
A kind of minus milling cutting insert of the present utility model, be designed to the blade body in square 0 ° of relief angle, it comprises upper surface, lower surface, and connects the side on upper and lower surface, processes for slabbing.This cutting tip is the minus cutting tip of 0 ° of relief angle, has 8 effective main cutting edges and 8 corresponding wiper edges, and two-sided indexable 8 times altogether, its usage economy is high.
The upper and lower surface of blade body 1 forms rake face, and rake face is divided into wiper edges rake face 5 and main cutting edge rake face 6, and main cutting edge rake face 6 is divided into again main cutting edge skew lines portion rake face 61 and the smooth line part rake face 62 of main cutting edge; Knife face after side (i.e. outer peripheral face) is formed, rear knife face to be divided into after wiper edges knife face 14 after knife face 13 and main cutting edge, the intersection crest line of rake face 5,6 and rear knife face 13,14 forms cutting edge, cutting edge comprises effective main cutting edge 2 and wiper edges 4, and the transition arc 3 of main cutting edge and wiper edges, described cutting edge is made up of line part, curve part, tool arc portion, forms large spill main cutting edge 2.Described spill main cutting edge 2 by two sections in the skew lines portion 21 of specular and one section of smooth line part 22 form; Two sections of skew lines portion 21 parts higher than the Set and Positioning face of clamping stationary plane small boss 10, partly lower than the Set and Positioning face of clamping stationary plane small boss 10, and are specular; One section of smooth line part 22 is lower than the Set and Positioning face of clamping stationary plane small boss 10.
A kind of minus milling cutting insert of the present utility model, the axial rake design that the cutter hub that described special large spill design is combined this cutting tip is special, when this cutting tip not only can be made to process incision, cutting edge is segmented into unified most possible angle and contacts with machined material priority, improving cutting edge entirety to enter and bring excessive resistance or different section cutting edge discontinuity thus the impact reducing cutting ability, is particularly the best results when ap≤2.5mm; And the available active balance slabbing of the design of the spill main cutting edge 2 of this cutting tip adds axial force and the radial load of cutting edge in man-hour, avoid causing spindle vibration because radial load is excessive and cutting not brisk negative influence; Adopt this cutting tip of special large spill main cutting edge structural design to can be used for right-hand man's cutterhead simultaneously, there is higher economy.
Upper and lower surface formation rake face (i.e. wiper edges rake face 5 and main cutting edge rake face 6) of described cutting tip body 1 is freely scanned by grid surface and is formed, and the change formed cuts front angular region between 6 ° ~ 25 °.The rake face of particular design change and cutting anterior angle not only can improve point of a knife sharpness and be conducive to reducing cutting resistance, and cutting edge bulk strength can be improved prevent tipping, be conducive to the curling of chip simultaneously and reduce chip contacting with rake face and reducing frictional heat.
Described rake face 5,6 is except main cutting edge rake face 62 place, all the other position rake faces are fixed small boss 10 to the clamping of blade body 1 and are freely scanned extension, namely the skew lines portion 21 of the main cutting edge of cutting edge and the rake face corresponding to wiper edges 4 extend to described boss direction with mild positive-angle, extended surface forms at boss to distance 1/4 ~ 1/3 place of cutting edge the cutting anterior angle the oblique stepped section of self-assembling formation that increase rapidly, and oblique stepped section has the oblique stepped section of main cutting edge rake face 7 and the oblique stepped section 8 of wiper edges rake face.The design of oblique stepped section 7 and oblique stepped section 8 can make chip leave the support of rake face instantaneously, reduces the heat that contact friction brings, is also conducive to chip and flies away from rake face and discharge; The heat that the contact friction that simultaneously as far as possible can reduce chip and clamping stationary plane small boss 10 brings, and avoid the friction scratch of the locating surface of clamping stationary plane small boss 10 as far as possible thus affect the installation positioning precision of cutting tip.
In described boss, the side corresponding to the oblique stepped section of main cutting edge rake face is set to the anti-bits face 15 of ramp shaped; Described main cutting edge rake face oblique stepped section 7 extends the anti-face 15 of considering to be worth doing with the indent chip pocket of clamping stationary plane small boss 10 and jointly caves inward and form indent chip pocket 12, is conducive to chip and flies away from blade body 1 along the anti-face 15 of considering to be worth doing of indent chip pocket; Cutting tip main cutting edge rake face 62 nature extends to the clamping fastening through-hole 16 of blade body 1, form opening chip pocket 11, namely, the rake face corresponding to nonangular smooth line part 22 of main cutting edge is connected to described through hole 16 with the extension of mild positive-angle, and the opening chip pocket 11 leading to described through hole is formed at described boss place, opening chip pocket 11 increases chip space, avoids the impact of cutting and piling up in indent chip pocket 12.
When cutting depth ap is less (ap≤2.5mm), chip is separated to fly out with main cutting edge rake face 6 at the oblique stepped section 7 of main cutting edge rake face leaves blade body 1, part cannot be clashed into the anti-face 15 of considering to be worth doing of recessed chip pocket after original direction flowing in the chip of natural separation, chip can well guide by the anti-bits face of inclined design flies away from blade, avoids the friction scratch of the locating surface of clamping stationary plane small boss 10 as far as possible thus affects the installation positioning precision of cutting tip and reduce frictional heat.When cutting depth is medium (2.5mm < ap≤4.5mm), when chip passes through main cutting edge rake face 61 and 62, to be separated with main cutting edge rake face 6 at the chip portion of main cutting edge oblique stepped section 7 place's chip near wiper edges rake face 5 side and to contact, continue to flow along main cutting edge rake face 62 away from the chip portion of wiper edges rake face 5 side, uneven due to support force, being easily made to flow freely the curling action with being automatically separated with blade body 1, making chip depart from blade body 1 fast.When cutting depth is larger (4.5mm < ap≤6mm), when chip passes through main cutting edge rake face 61 and 62, to be separated with main cutting edge rake face 6 at the chip portion of main cutting edge oblique stepped section 7 place's chip near wiper edges rake face 5 side and to contact, the chip portion away from wiper edges rake face 5 being positioned at middle part continues to flow along main cutting edge rake face 62, due to the uneven effect of support force, chip is as easy as rolling off a log flows through opening chip pocket 11 to intermediate recess, and the chip pocket of opening increases chip space, avoid the impact of cutting and piling up in indent chip pocket 12, add the anti-comprehensive function of considering face 15 to be worth doing of both sides indent chip pocket simultaneously, chip can be made naturally to flow curling or self-chip breaking effect and fly away from the effect of blade body 1.
The oblique stepped section of the above main cutting edge rake face 7, opening chip pocket 11, indent chip pocket 12 and indent chip pocket are counter considers the chip-breaker that face 15 forms blade body 1 jointly to be worth doing, described chip-breaker is when main cutting edge rake face 6 is flow through in the chip that machining is formed, have that to optimize chip flow curling and carry out from chip breaking processing capacity, improve tool sharpening performance and stability.
Small boss 10 fixed by described cutting tip is designed with into specular respectively 4 clampings on upper and lower surface, small boss 10 is symmetric with the axis of clamping fastening through-hole, designed boss is used for coordinating clamping with edge bearing locating surface, 4 unconnected positioning boss effectively improve Set and Positioning precision, effectively can increase the efficiently radiates heat area of blade body simultaneously.
8 described clampings are fixed medium position on small boss 10 and are designed with mark or character pit 9, and word pit not only effectively increases the efficiently radiates heat area of blade basal plane; And the contact area that clamping fixes small boss 10 and chip can be reduced, reduce friction and reduce frictional heat; Energy dischargeable capacity cooling fluid, makes cooling fluid be immersed in clamping fastening through-hole 16 around simultaneously, strengthens cooling effect; In addition, word pit can also play the convenience effect that sword number is distinguished, used.
Described cutting tip body 1 with coordinate edge bearing body 18 to coordinate after fix to clamp by trip bolt on supporting cutterhead body 17 by clamping fastening through-hole 16, it is a (44 °≤a≤46 °) that described supporting cutterhead body cuts tool cutting edge angle
Above-mentioned just preferred embodiment of the present utility model, not does any pro forma restriction to the utility model.Although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model.Any those of ordinary skill in the art, when not departing from technical solutions of the utility model scope, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solutions of the utility model, or be revised as equivalents Equivalent embodiments.Therefore, every content not departing from technical solutions of the utility model, according to the utility model technical spirit to any simple modification made for any of the above embodiments, equivalent variations and modification, all should drop in the scope of technical solutions of the utility model protection.
Claims (11)
1. a minus milling cutting insert, comprises blade body; Blade body has upper and lower surface parallel each other, and the quadrangle that outer peripheral face is formed, and upper and lower surface angulation crossing with outer peripheral face is right angle; Blade body is provided with the through hole of vertical through upper and lower surface, and through hole surrounding is uniformly distributed the boss of Set and Positioning, and outer peripheral face configures main cutting edge and wiper edges successively alternately; It is characterized in that: described main cutting edge is concave structure, the close inclination of surperficial opposing face up and down gradually respectively from its two ends, and formed in the middle part of nonangular smooth main cutting edge in the part at 1/6 ~ 1/3 place of main cutting edge length; Rake face in the middle part of the nonangular smooth main cutting edge of described blade body is connected to described through hole with the extension of mild positive-angle, and forms the opening chip pocket leading to described through hole at described boss place.
2. minus milling cutting insert according to claim 1, is characterized in that: described main cutting edge is concave structure, forms with the nonangular smooth line part being in middle part by being in the skew lines portion of both sides also in specular; The outer end in described skew lines portion is higher than the Set and Positioning face of described boss, and the inner in described skew lines portion is lower than the Set and Positioning face of described boss; The described nonangular smooth line part being in middle part is connected between the skew lines portion on both sides, and lower than the Set and Positioning face of described boss.
3. minus milling cutting insert according to claim 2, is characterized in that: the corresponding rake face of described main cutting edge is freely scanned by grid surface and formed, and the change formed cuts front angular region between 6 ° ~ 25 °.
4. minus milling cutting insert according to claim 3, it is characterized in that: the rake face corresponding to nonangular smooth line part of described main cutting edge is connected to described through hole with the extension of mild positive-angle, and forms the opening chip pocket leading to described through hole at described boss place.
5. minus milling cutting insert according to claim 4, it is characterized in that: the skew lines portion of described main cutting edge and the rake face corresponding to wiper edges extend to described boss direction with mild positive-angle, extended surface forms at boss to distance 1/4 ~ 1/3 place of cutting edge the cutting anterior angle the oblique stepped section of self-assembling formation that increase rapidly.
6. minus milling cutting insert according to claim 5, is characterized in that: the oblique stepped section of described rake face is made up of the oblique stepped section of main cutting edge rake face and the oblique stepped section of wiper edges rake face; In described boss, the side corresponding to the oblique stepped section of main cutting edge rake face is set to the anti-bits face of ramp shaped.
7. minus milling cutting insert according to claim 6, is characterized in that: the oblique stepped section of described main cutting edge rake face extends and form the indent chip pocket caved inward between the anti-bits face of described boss.
8. minus milling cutting insert according to claim 7, is characterized in that: described indent chip pocket is connected with described opening chip pocket, and the common chip-breaker forming blade body.
9. minus milling cutting insert according to claim 1, is characterized in that: the small boss upper and lower surface of the through hole surrounding of described blade body being uniformly distributed Set and Positioning, and the small boss on upper and lower surface is into specular; Four small boss on described upper and lower surface are symmetric with the axis of described through hole.
10. minus milling cutting insert according to claim 9, is characterized in that: four small boss on described upper and lower surface are respectively equipped with word pit.
11. minus milling cutting inserts according to claim 1, is characterized in that: described main cutting edge and wiper edges configure alternately and are provided with transition arc and be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420653925.1U CN204277044U (en) | 2014-11-04 | 2014-11-04 | Minus milling cutting insert |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420653925.1U CN204277044U (en) | 2014-11-04 | 2014-11-04 | Minus milling cutting insert |
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| CN204277044U true CN204277044U (en) | 2015-04-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439461A (en) * | 2014-11-04 | 2015-03-25 | 厦门金鹭特种合金有限公司 | Negative-type milling blade |
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2014
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439461A (en) * | 2014-11-04 | 2015-03-25 | 厦门金鹭特种合金有限公司 | Negative-type milling blade |
| CN104439461B (en) * | 2014-11-04 | 2017-01-18 | 厦门金鹭特种合金有限公司 | Negative-type milling blade |
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