CN109365844A - A kind of cutting tip and cutting tool for interior hole machined - Google Patents

A kind of cutting tip and cutting tool for interior hole machined Download PDF

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Publication number
CN109365844A
CN109365844A CN201811444619.6A CN201811444619A CN109365844A CN 109365844 A CN109365844 A CN 109365844A CN 201811444619 A CN201811444619 A CN 201811444619A CN 109365844 A CN109365844 A CN 109365844A
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CN
China
Prior art keywords
cutting
rear surface
central axis
knife bar
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811444619.6A
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Chinese (zh)
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CN109365844B (en
Inventor
宁华林
王东海
张京
刘孙和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Original Assignee
Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Zhuzhou Cemented Carbide Cutting Tools Co Ltd filed Critical Zhuzhou Cemented Carbide Cutting Tools Co Ltd
Priority to CN201811444619.6A priority Critical patent/CN109365844B/en
Publication of CN109365844A publication Critical patent/CN109365844A/en
Application granted granted Critical
Publication of CN109365844B publication Critical patent/CN109365844B/en
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/16—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped
    • B23B27/1614—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert
    • B23B27/1622—Cutting tools of which the bits or tips or cutting inserts are of special material with exchangeable cutting bits or cutting inserts, e.g. able to be clamped with plate-like cutting inserts of special shape clamped against the walls of the recess in the shank by a clamping member acting upon the wall of a hole in the insert characterised by having a special shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/12—Side or flank surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/16—Supporting or bottom surfaces
    • B23B2200/161—Supporting or bottom surfaces with projections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2200/00—Details of cutting inserts
    • B23B2200/28—Angles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)

Abstract

The invention discloses a kind of cutting tips for interior hole machined, including front surface, rear surface, it is vertically connected at the main side between a front surface and a rear surface, cutting portion and mounting portion, the cutting parts are on main side, the installation position is on rear surface middle part, the rear surface is equipped with more than two boss, the installation base is circumferentially arranged along mounting portion, the mounting portion is equipped with locking face on the periphery wall far from rear surface side, the present invention also provides a kind of cutting tools, including knife bar, fastening screw and blade, the blade is cutting tip above-mentioned, the knife bar front end offers the locating slot for accommodating blade, the threaded hole for installing fastening screw is offered on the outer peripheral surface of the knife bar front end, the present invention has the advantages that intensity height and accurate positioning.

Description

A kind of cutting tip and cutting tool for interior hole machined
Technical field
The present invention relates to metal cutting process technical fields, the cutting tip and bite of more particularly, to interior hole machined Tool.
Background technique
In small diameter inner hole (Dmin>=6mm) in manufacture field, cutting tip is detachably fastened the connection machine on knife bar Structure is a variety of, is all largely by being incited somebody to action from end face by screw in cutting tip end face center Position Design screw sink hole Blade is locked on knife bar (such as patent CN103347630A, United States Patent (USP) US20110200408, Deutsche Bundespatent DE29807797U1 etc.).However the type cutting tip and knife bar sectional dimension natively very little, screw sink hole and threaded hole The intensity for greatly reducing cutting tip and knife bar, seriously affects processing efficiency and processing stability.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, provide that a kind of intensity is high and accurate positioning Cutting tip and cutting tool for interior hole machined.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of cutting tip for interior hole machined, including front surface, rear surface, be vertically connected between a front surface and a rear surface Main side, cutting portion and mounting portion, the cutting parts on main side, the installation position in the middle part of the rear surface on, institute It states rear surface and is equipped with more than two boss, the boss is circumferentially arranged along mounting portion, and the mounting portion is far from rear surface one The periphery wall of side is equipped with locking face.
As further improvement to above-mentioned technical proposal:
The mounting portion include feel relieved column and with the locking post that connect of centering column, the locking post far from the setting of rear surface side, The locking face is set on the periphery wall of locking post.
The radius of the locking post is R1, and the radius of the centering column is R2,0.1mm≤R2-R1≤0.3mm.
The centering column is symmetrical about central axis A, on the projection plane perpendicular to locking face and by central axis A, institute The angle stated between the projection line of locking face and the projection line of central axis A is δ1, should meet: 5 °≤δ1≤10°。
The locking post is additionally provided with empty avoiding face and transition face, and the empty avoiding face is connect by transition face with locking face, is hanging down Directly on the projection plane of locking face and process central axis A, between the projection line of the locking face and the projection line of locking face Angle is δ2, should meet: δ2≥100°。
The boss includes that sequentially connected positioning side surface, raised top surface and helical flank, the positioning side surface are hung down Directly it is arranged in rear surface, the protrusion top surface is parallel to rear surface setting, and the helical flank favours rear surface and along installation The setting of portion's spiral.
On the projection plane for being parallel to rear surface, the angle between the projection line and horizontal line of the positioning side surface is α, the helical flank are β 1, Ying Man in the angle between the projection line of rear surface side and the projection line of positioning side surface Foot: 0 ° of 90 ° of < α <, 1≤135 ° of 60 °≤β.
On the projection plane for being parallel to rear surface, the angle between the projection line of the positioning side surface of two adjacent lands is γ meets: -5 °≤γ≤5 °.
The mounting portion is H relative to the height of rear surface, and the boss is h relative to the height of rear surface, should be met: 2h≤H≤3h。
On the projection plane for being parallel to rear surface, the radius of the cutting tip circumscribed circle is R3, should be met: 2R2≤ R3≤4R2。
The main side includes upper plane, lower plane and the cylindrical side being connected between plane, lower plane, described to cut The portion of cutting is installed on cylindrical side.
Perpendicular to locking face and perpendicular on the projection plane of central axis A, the projection line of the locking face is put down with any Row is θ in the angle of the plane projection line of upper plane, should be met: 3 °≤θ≤8 °.
The cutting portion includes main cutting edge, end cutting edge and the point of a knife circle between main cutting edge and end cutting edge Arc.
In the projection plane perpendicular to front surface, close to front surface side tool arc relative to front surface most Big vertical range is f, should be met: 0.2mm≤f≤1mm.
The inventive concept total as one, the present invention also provides a kind of cutting tool for interior hole machined, including knife bar, Fastening screw and blade, the blade are cutting tip above-mentioned, and the knife bar front end offers the positioning for accommodating blade Slot offers the threaded hole for installing fastening screw on the outer peripheral surface of the knife bar front end.
As further improvement to above-mentioned technical proposal:
The locating slot includes for accommodating the location hole of mounting portion and accommodating the mounting recess of boss.
The mounting recess is equipped with the two positioning sides matched with the positioning side surface of boss, two positioning side Radial thickness is respectively S1 and S2, should be met: 0mm≤S1-S2≤0.8mm.
The knife bar includes positioned at the cutting end of knife bar front end and positioned at the clamping end of knife bar rear end, and the locating slot is located at Cutting end, the outer peripheral surface of the clamping end are clamping end side surface, and the clamping end side surface, which is equipped with, is used for cutting tool horizontal location Positioning plane.
The clamping end of the knife bar is symmetrical about central axis D-D, and the threaded hole is symmetrical about central axis F-F, vertical In on the projection plane of central axis D-D, the knife bar clamping end is symmetrical about axis E-E, the throwing of axis E-E and central axis F-F Hachure is parallel, and the spacing between axis E-E and the projection line of central axis F-F is L, should be met: 0.1mm≤L≤0.6mm.
Knife bar further includes the neck for connecting cutting end and clamping end, described on the projection plane perpendicular to central axis D-D Maximum outer dimension of the neck along the direction horizontal axis C-C is D1, is D2 along the direction axis E-E maximum outer dimension, meets: D2 ≥D1。
It is being parallel to central axis D-D and is crossing on the projection plane of central axis F-F, between central axis F-F and central axis D-D Angle is ε, should be met: ε=90 °-δ1。
Compared with the prior art, the advantages of the present invention are as follows:
1, cutting tip of the invention, rear surface are equipped with more than two boss, and mounting portion is equipped with locking face, and jackscrew locking can be used Blade, simply, conveniently, boss plays positioning and locking, mounting portion play stator locking for blade installation.Since blade is without in Heart pore structure, cutter have intensity height, positioning stablity, compact-sized, the grooving processing of big cutting-in can be completed in small diameter bore.
2, cutting tool of the invention, the spacing L between the projection line of the axis E-E and central axis F-F of fastening screw, knife Angle δ 1 between the projection line of piece locking face and the projection line of central axis A, during blade is installed, the design of threaded hole bias, Fastening screw, the relatively reliable positioning side for being adjacent to knife bar mounting recess in the raised top surface of blade are tightened, locking face compresses, makes Blade is obtained firmly to be locked in locating slot.
Detailed description of the invention
Fig. 1 is the schematic perspective view of inventive cutting blade.
Fig. 2 is another view stereo structural schematic diagram of inventive cutting blade.
Fig. 3 is the main view of inventive cutting blade.
Fig. 4 is the top view of inventive cutting blade.
Fig. 5 is the left view of inventive cutting blade.
Fig. 6 is the assembly structure diagram of cutting tool of the present invention.
Fig. 7 is the decomposition texture schematic diagram of cutting tool of the present invention.
Fig. 8 is the schematic perspective view of knife bar of the present invention.
Fig. 9 is the partial enlarged view in Fig. 8 at P.
Figure 10 is the left view of knife bar of the present invention.
Figure 11 is the threaded hole of knife bar of the present invention and the structural schematic diagram of location hole.
Each label indicates in figure:
10, blade；15, front surface；16, rear surface；17, main side；171, upper plane；172, lower plane；173, cylindrical side； 25, cutting portion；251, main cutting edge；252, end cutting edge；253, tool arc；30, mounting portion；34, boss；341, oriented side Surface；343, helical flank；342, raised top surface；48, centering column；52, locking post；521, locking face；523, empty avoiding face；524, Transition face；60, knife bar；61, locating slot；62, mounting recess；621, side is positioned；622, bottom surface is positioned；623, setting screw Face；66, location hole；70, convex surface is positioned；82, neck；83, end side surface is clamped；90, plane is positioned；92, threaded hole；95, it fastens Screw.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and specific embodiment.
As shown in Fig. 1 to 5, the cutting tip for interior hole machined of the present embodiment, including front surface 15, rear surface 16, Main side 17, cutting portion 25 and the mounting portion 30 being vertically connected between front surface 15 and rear surface 16, cutting portion 25 are located at master On side 17, mounting portion 30 is located on 16 middle part of rear surface, and rear surface 16 is equipped with more than two boss 34, and boss 34 is along installation Portion 30 is circumferential to be symmetrical arranged, and mounting portion 30 is equipped with locking face 521 on the periphery wall far from 16 side of rear surface.
Cutting tip of the invention, rear surface 16 are equipped with more than two boss 34, and mounting portion 30 is equipped with locking face 521, can Blade is locked using jackscrew, simply, conveniently, boss 34 plays the role of positioning and locking effect, mounting portion 30 play centering for blade installation Locking effect.Blade non-stop layer pore structure, cutter have intensity height, positioning stablity, compact-sized, can complete in small diameter bore The grooving processing of big cutting-in.
Mounting portion 30 includes centering column 48 and the locking post 52 connecting with centering column 48, and locking post 52 is far from rear surface 16 1 Side setting, locking face 521 are set on the periphery wall of locking post 52.
In the present embodiment, the radius of locking post 52 is R1, and the radius of centering column 48 is R2,0.1mm≤R2-R1≤0.3mm.
In the present embodiment, centering column 48 is symmetrical about central axis A, perpendicular to locking face 521 and by the throwing of central axis A In shadow plane, the angle between the projection line of locking face 521 and the projection line of central axis A is δ 1, should be met: 1≤10 ° of 5 °≤δ, Under the premise of meeting blade locking, structure is more compact, in the present embodiment, 1=8 ° of δ
In the present embodiment, locking post 52 is additionally provided with empty avoiding face 523 and transition face 524, and empty avoiding face 523 passes through transition face 524 and lock Tight face 521 connects, on the projection plane perpendicular to locking face 521 and by central axis A, the projection line and lock of locking face 521 Angle between the projection line in tight face 521 is δ 2, should be met: 2 >=100 ° of δ.
Boss 34 includes sequentially connected positioning side surface 341, raised top surface 342 and helical flank 343, positions side surface 341 are arranged perpendicular to rear surface 16, and raised top surface 342 is parallel to the setting of rear surface 16, and helical flank 343 favours rear surface 16 And it is arranged along 30 spiral of mounting portion.In the present embodiment, the quantity of boss 34 is two, is arranged along 16 circumferential direction of rear surface, spiral shell The inclination of rotation side 343 is connected between rear surface 16 and raised top surface 342.
In the present embodiment, the quantity of boss 34 is two, wherein the positioning side surface 341 of a boss 34 and another boss 34 Helical flank 343 be oppositely arranged.On the projection plane for being parallel to rear surface 16, the projection line and water of side surface 341 are positioned Angle between horizontal line is α, projection of the helical flank 343 in projection line and positioning side surface 341 close to 16 side of rear surface Angle between line is β 1, should be met: 0 ° of 90 ° of < α <, 1≤135 ° of 60 °≤β.The presence of angle α can be decomposed preferably and be cut The cutting force that blade passes over during cutting, in the present embodiment, α=45 °
Folder on the projection plane for being parallel to rear surface 16, between the projection line of the positioning side surface 341 of two adjacent lands 34 Angle is γ, should be met: -5 °≤γ≤5 °, blade positioning can be made relatively reliable in this way, avoid blade and knife bar 60 in process In the presence of the relative movement along positioning 341 direction of side surface, along the present embodiment, γ=1 °.
Mounting portion 30 is H relative to the height of rear surface 16, and boss 34 is h relative to the height of rear surface 16, should be met: 2h≤H≤3h.On the projection plane for being parallel to rear surface 16, the radius of cutting tip circumscribed circle is R3, should be met: 2R2≤ R3≤4R2.The certralizing ability of blade centering column 48 is relatively reliable, and the intensity of boss 34 can also be met, in the present embodiment, H=2h, R3=2R2.
In the present embodiment, main side 17 is including upper plane 171, lower plane 172 and is connected to plane 171, lower plane 172 Between cylindrical side 173, cutting portion 25 is installed on cylindrical side 173.Cutting tip is integrally formed.
In the present embodiment, upper surface 171 is intersected with the raised top surface 342 of a wherein boss 34, lower surface 172 with it is another convex The raised top surface 342 of platform 34 is intersected, and the boss 34 intersected with upper surface 171 plays the role of positioning, the boss intersected with lower surface 172 34 have locking effect.
Axis A-A is overlapped with the center line of cylindrical side 173.
Perpendicular to locking face 521 and perpendicular on the projection plane of central axis A, the projection line of locking face 521 and any The angle for being parallel to the plane projection line of plane 171 is θ, should be met: 3 °≤θ≤8 °.
Cutting portion 25 include main cutting edge 251, end cutting edge 252 and be located at main cutting edge 251 and end cutting edge 252 it Between 253 the present embodiment of tool arc in, tool arc 253 is tangent with main cutting edge 251 and end cutting edge 252 respectively.
Maximum normal distance of the tool arc 253 relative to front surface 15 in the present embodiment, by 15 side of front surface For f, it should meet: 0.2mm≤f≤1mm.
As shown in Fig. 6 to 11, a kind of cutting tool for interior hole machined of the invention, including knife bar 60, fastening screw 95 and blade 10, blade 10 is the cutting tip according to any one of claims 1 to 14, and 60 front end of knife bar is offered for holding It receives the locating slot 61 of blade 10, the threaded hole 92 for installing fastening screw 95 is offered on the outer peripheral surface of 60 front end of knife bar.
Blade 10 is removably retained in locating slot 61 by fastening screw 95.Fastening screw 95 passes through threaded hole 92, 95 front end face of fastening screw is pressed on the locking face 521 of blade 10, to lock cutting tip 10.
Knife bar 60 can be made of a kind of material or multiple material, and blade 10 is made of a kind of harder material.For example, Knife bar 60 can be formed from steel, or be made jointly of steel with hard alloy, and blade 10 can be made of hard alloy.
As shown in figure 9, locating slot 61 includes recessed for accommodating the installation of the location hole 66 of mounting portion 30 and receiving boss 34 Portion 62.
In the present embodiment, mounting recess 62 is equipped with the two positioning sides matched with the positioning side surface 341 of boss 34 621, the radial thickness of two positioning sides 621 is respectively S1 and S2, should be met: 0mm≤S1-S2≤0.8mm is conducive to improve and cut The rigidity of cutting knife tool, wherein radial thickness it is lesser positioning side 621 close to 25 side of cutting portion be arranged and with blade 10 its In a boss 34 raised top surface 342 contact.
In the present embodiment, mounting recess 62 is additionally provided with the positioning bottom surface 622 matched with the raised top surface 342 of boss 34, The setting screw face 623 matched with the helical flank 343 of boss 34 is additionally provided with and table after blade 10 between two mounting recess 62 The positioning convex surface 70 that face 16 matches.
Positioning side 621 is contacted with positioning side surface 341, and positioning bottom surface 622 is in contact with raised top surface 342, convex Face 70 is contacted with rear surface 16.
The periphery face contact of centering column 48, the underrun screw thread of fastening screw 95 in the inner wall and blade 10 of location hole 66 Effect is contacted with the locking face 521 of locking post 52.
In the present embodiment, knife bar 60 include positioned at the cutting end of 60 front end of knife bar and positioned at the clamping end of 60 rear end of knife bar, Locating slot 61 is located at cutting end, and the outer peripheral surface of clamping end is clamping end side surface 83, and clamping end side surface 83, which is equipped with, is used for cutting tool The positioning plane 90 of horizontal location.
In the present embodiment, the clamping end of knife bar 60 is symmetrical about central axis D-D, and threaded hole 92 is symmetrical about central axis F-F, On the projection plane perpendicular to central axis D-D, 60 clamping end of knife bar is symmetrical about axis E-E, axis E-E and central axis F-F Projection line it is parallel, and the spacing between axis E-E and the projection line of central axis F-F be L, should meet: 0.1mm≤L≤ 0.6mm, threaded hole 92 is using eccentric design, when tightening fastening screw 95, the relatively reliable patch in the raised top surface 342 of blade 10 The positioning side 621 of 60 mounting recess 62 of tight knife bar, locking face 521 compress, and what blade 10 can be more reliable is fixed on knife bar 60 Locating slot 61 in, in the present embodiment, θ=5 °, L=0.4mm.
In the present embodiment, it is being parallel to central axis D-D and is crossing on the projection plane of central axis F-F, the projection of central axis F-F Angle between line and central axis D-D is ε, should be met: ε=90 °-δ1。
Knife bar 60 further includes the neck 82 for connecting cutting end and clamping end, and threaded hole 92 is located on the periphery wall of neck 82 simultaneously It is arranged close to cutting end side, the section of neck 82 is non-circular structure, approximate ellipse structure, perpendicular to central axis D-D's On projection plane, neck 82 has minimum dimension D1 and full-size D2, wherein minimum dimension D1 and center line C-C projection line weight It closes, full-size D2 is overlapped with axis E-E projection line, in order to improve cutter rigidity, it is desirable that D2 > D1.
In order to improve the shock resistance of knife bar 60, the cutting end section of knife bar 60 uses non-circular design, increases vertical Size value in the direction axis C-C, while increasing the radial thickness far from 25 side of cutting portion setting positioning side 621, in this way Knife bar intensity can be improved as far as possible under the premise of meeting processing request.
In Fig. 7, axis B-B is located at the institute of front surface 15 planar and perpendicular to central axis A-A, and with upper plane 171, under Plane 172 is parallel.Center line C-C is parallel to positioning plane 90, also parallel with axis B-B, axis D-D and 60 clamping end of knife bar Axis is overlapped, parallel with axis A-A, but is not necessarily overlapped.
Although the present invention has been disclosed as a preferred embodiment, however, it is not intended to limit the invention.It is any to be familiar with ability The technical staff in domain, without deviating from the scope of the technical scheme of the present invention, all using the technology contents pair of the disclosure above Technical solution of the present invention makes many possible changes and modifications or equivalent example modified to equivalent change.Therefore, all Without departing from the content of technical solution of the present invention, according to the present invention technical spirit any simple modification made to the above embodiment, Equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.

Claims (21)

1. a kind of cutting tip for interior hole machined, including front surface (15), rear surface (16), it is vertically connected at front surface (15) main side (17) between rear surface (16), cutting portion (25) and mounting portion (30), it is characterised in that: the cutting portion (25) it is located on main side (17), the mounting portion (30) is located on rear surface (16) middle part, and the rear surface (16) is equipped with More than two boss (34), the boss (34) are circumferentially arranged along mounting portion (30), and the mounting portion (30) is far from rear surface (16) periphery wall of side is equipped with locking face (521).
2. cutting tip according to claim 1, it is characterised in that: the mounting portion (30) include centering column (48) and with The locking post (52) of centering column (48) connection, the locking post (52) are arranged far from rear surface (16) side, the locking face (521) it is set on the periphery wall of locking post (52).
3. cutting tip according to claim 2, which is characterized in that the radius of the locking post (52) is R1, described fixed The radius of stem (48) is R2,0.1mm≤R2-R1≤0.3mm.
4. cutting tip according to claim 2, it is characterised in that: the centering column (48) is symmetrical about central axis A, Perpendicular to locking face (521) and by the projection plane of central axis A, the projection line of the locking face (521) is with central axis A's Angle between projection line is δ1, should meet: 5 °≤δ1≤10°。
5. cutting tip according to claim 4, it is characterised in that: the locking post (52) is additionally provided with empty avoiding face (523) With transition face (524), the empty avoiding face (523) is connect by transition face (524) with locking face (521), perpendicular to locking face (521) and by the projection plane of central axis A, the projection line of the projection line of the locking face (521) and locking face (521) it Between angle be δ2, should meet: δ2≥100°。
6. cutting tip according to any one of claims 1 to 5, it is characterised in that: the boss (34) includes successively connecting Positioning side surface (341), raised top surface (342) and the helical flank (343) connect, the positioning side surface (341) is perpendicular to rear Surface (16) setting, the protrusion top surface (342) is parallel to rear surface (16) setting, after the helical flank (343) favours Surface (16) is simultaneously arranged along mounting portion (30) spiral.
7. cutting tip according to claim 6, it is characterised in that: on the projection plane for being parallel to rear surface (16), Angle between the projection line and horizontal line of positioning side surface (341) is α, and the helical flank (343) is close to rear table Angle between the projection line of face (16) side and the projection line for positioning side surface (341) is β1, it should meet: 0 ° of 90 ° of < α <, 60°≤β1≤135°。
8. cutting tip according to claim 6, it is characterised in that: on the projection plane for being parallel to rear surface (16), Angle between the projection line of the positioning side surface (341) of two adjacent lands (34) is γ, is met: -5 °≤γ≤5 °.
9. cutting tip according to claim 6, it is characterised in that: the mounting portion (30) is relative to rear surface (16) Height is H, and the boss (34) is h relative to the height of rear surface (16), should be met: 2h≤H≤3h.
10. cutting tip according to any one of claim 3 to 5, it is characterised in that: be parallel to rear surface (16) On projection plane, the radius of the cutting tip circumscribed circle is R3, should be met: 2R2≤R3≤4R2.
11. cutting tip according to any one of claim 1 to 5, it is characterised in that: the main side (17) includes upper Plane (171), lower plane (172) and the cylindrical side (173) being connected between plane (171), lower plane (172), it is described Cutting portion (25) is installed on cylindrical side (173).
12. cutting tip according to claim 11, it is characterised in that: perpendicular to locking face (521) and perpendicular in On the projection plane of mandrel A, the projection line of the locking face (521) and the plane projection line for being arbitrarily parallel to plane (171) Angle be θ, should meet: 3 °≤θ≤8 °.
13. cutting tip according to claim 11, it is characterised in that: the cutting portion (25) includes main cutting edge (251), end cutting edge (252) and the tool arc (253) between main cutting edge (251) and end cutting edge (252).
14. cutting tip according to claim 13, it is characterised in that: in the projection plane perpendicular to front surface (15) It is interior, be located at front surface (15) side tool arc (253) relative to front surface (15) maximum normal distance be f, should meet: 0.2mm≤f≤1mm。
15. a kind of cutting tool for interior hole machined, including knife bar (60), fastening screw (95) and blade (10), feature Be: the blade (10) is the cutting tip according to any one of claims 1 to 14, and knife bar (60) front end is opened Equipped with the locating slot (61) for accommodating blade (10), offered on the outer peripheral surface of knife bar (60) front end for installing fastening The threaded hole (92) of screw (95).
16. cutting tool according to claim 15, it is characterised in that: the locating slot (61) includes for accommodating installation The location hole (66) in portion (30) and the mounting recess (62) for accommodating boss (34).
17. cutting tool according to claim 16, it is characterised in that: the mounting recess (62) is equipped with and boss (34) Positioning side surface (341) match two positioning side (621), it is described two positioning side (621) radial thickness be respectively S1 and S2 should meet: 0mm≤S1-S2≤0.8mm.
18. cutting tool described in any one of 5 to 17 according to claim 1, it is characterised in that: the knife bar (60) includes position Cutting end in knife bar (60) front end and the clamping end positioned at knife bar (60) rear end, the locating slot (61) are located at cutting end, institute The outer peripheral surface of clamping end is stated as clamping end side surface (83), clamping end side surface (83) is equipped with for cutting tool horizontal location It positions plane (90).
19. cutting tool described in any one of 5 to 17 according to claim 1, it is characterised in that: the clamping of the knife bar (60) End is symmetrical about central axis D-D, and the threaded hole (92) is symmetrical about central axis F-F, flat in the projection perpendicular to central axis D-D On face, knife bar (60) clamping end is symmetrical about axis E-E, and axis E-E is parallel with the projection line of central axis F-F, and axis Spacing between E-E and the projection line of central axis F-F is L, should be met: 0.1mm≤L≤0.6mm.
20. cutting tool according to claim 19, it is characterised in that: the knife bar (60) further include connection cutting end and The neck (82) of clamping end, on the projection plane perpendicular to central axis D-D, the neck (82) is along the direction horizontal axis C-C Maximum outer dimension be D1, along the direction axis E-E maximum outer dimension be D2, meet: D2 >=D1.
21. cutting tool according to claim 19, it is characterised in that: be parallel to central axis D-D and crossing central axis F-F Projection plane on, the angle between central axis F-F and central axis D-D is ε, should be met: ε=90 °-δ1。
CN201811444619.6A 2018-11-29 2018-11-29 Cutting blade and cutting tool for machining inner hole Active CN109365844B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11235397B2 (en) 2016-12-16 2022-02-01 Kennametal Inc. Side-activated modular drill
US11446743B2 (en) 2018-06-20 2022-09-20 Kennametal Inc. Side-lock modular drill with spring-assisted bump-off
US11471952B2 (en) 2020-03-19 2022-10-18 Kennametal Inc. Cutting tool having replaceable cutting head and method of securing a replaceable cutting head
US11883888B2 (en) 2021-06-28 2024-01-30 Kennametal Inc. Modular drill with enhanced bump-off capability

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071556A1 (en) * 1981-07-27 1983-02-09 Emile Pfalzgraf "Epb", S.A. Device for blocking and/or clamping fasteners of boring heads, drilling spindles, mandrels, long pincers and other mechanical parts
CN1616170A (en) * 2003-11-11 2005-05-18 以思图株式会社 Structure for securing insert to insert drill
WO2005102573A1 (en) * 2004-04-23 2005-11-03 Yestool Co., Ltd. Insert drill
US20110008114A1 (en) * 2009-07-08 2011-01-13 Teng Hung Wang Tool device having different tool blades
CN102049554A (en) * 2009-11-10 2011-05-11 山特维克知识产权股份有限公司 A rotatable tool for chip removing machining as well as a loose top and a basic body therefor
US20110200408A1 (en) * 2010-02-17 2011-08-18 Iscar, Ltd. Tool Coupling
US20150360300A1 (en) * 2014-06-17 2015-12-17 Iscar, Ltd. Rotary cutting tool including cutting head having coupling pin with guiding and fastening recesses

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0071556A1 (en) * 1981-07-27 1983-02-09 Emile Pfalzgraf "Epb", S.A. Device for blocking and/or clamping fasteners of boring heads, drilling spindles, mandrels, long pincers and other mechanical parts
CN1616170A (en) * 2003-11-11 2005-05-18 以思图株式会社 Structure for securing insert to insert drill
WO2005102573A1 (en) * 2004-04-23 2005-11-03 Yestool Co., Ltd. Insert drill
US20110008114A1 (en) * 2009-07-08 2011-01-13 Teng Hung Wang Tool device having different tool blades
CN102049554A (en) * 2009-11-10 2011-05-11 山特维克知识产权股份有限公司 A rotatable tool for chip removing machining as well as a loose top and a basic body therefor
US20110200408A1 (en) * 2010-02-17 2011-08-18 Iscar, Ltd. Tool Coupling
US20150360300A1 (en) * 2014-06-17 2015-12-17 Iscar, Ltd. Rotary cutting tool including cutting head having coupling pin with guiding and fastening recesses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11235397B2 (en) 2016-12-16 2022-02-01 Kennametal Inc. Side-activated modular drill
US11446743B2 (en) 2018-06-20 2022-09-20 Kennametal Inc. Side-lock modular drill with spring-assisted bump-off
US11471952B2 (en) 2020-03-19 2022-10-18 Kennametal Inc. Cutting tool having replaceable cutting head and method of securing a replaceable cutting head
US11883888B2 (en) 2021-06-28 2024-01-30 Kennametal Inc. Modular drill with enhanced bump-off capability

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