WO2012058863A1 - Outil de coupe hélicoïdal à positionnement composite et centrage de coupe composite - Google Patents

Outil de coupe hélicoïdal à positionnement composite et centrage de coupe composite Download PDF

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Publication number
WO2012058863A1
WO2012058863A1 PCT/CN2011/001823 CN2011001823W WO2012058863A1 WO 2012058863 A1 WO2012058863 A1 WO 2012058863A1 CN 2011001823 W CN2011001823 W CN 2011001823W WO 2012058863 A1 WO2012058863 A1 WO 2012058863A1
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WO
WIPO (PCT)
Prior art keywords
cutting
spiral
edge
composite
positioning
Prior art date
Application number
PCT/CN2011/001823
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English (en)
Chinese (zh)
Inventor
李仕清
Original Assignee
Li Shiqing
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
Publication date
Application filed by Li Shiqing filed Critical Li Shiqing
Publication of WO2012058863A1 publication Critical patent/WO2012058863A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/02—Twist drills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/14—Configuration of the cutting part, i.e. the main cutting edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2251/00—Details of tools for drilling machines
    • B23B2251/18—Configuration of the drill point

Definitions

  • the present invention relates to a centering spiral cutter for composite positioning composite cutting, which is used in drilling machine processing and fitter maintenance.
  • the twist drill used in machining consists of a chisel edge, a cutting edge, a helical secondary edge, and a side edge.
  • the cutting edge and the secondary edge have a single structure, and the centering structure is poor.
  • These twist drills are extremely durable, especially in drilling. (Milling)
  • a workpiece with a high hardness is cut, a large amount of heat is easily generated, which causes the hardness of the cutter head to decrease, causing wear of the cutter head, and the cutter head also has a defect that is easy to break, and, because the cutting edges on both sides of the cutter head are
  • the work is symmetrical, and the cutting amount is generally only tens of microns to 1 mm, so it is difficult to grasp the angle and height during manual grinding.
  • the precision of these twist drills and the processed holes is unacceptable. There is a waste product, and at the same time, when processing a thin workpiece, there is a problem that the workpiece is brought up to cause an industrial accident.
  • the present invention has been made in view of the above problems, and aims to provide a new type of centering and spiral cutting tool for composite positioning composite cutting, which has high heat dissipation efficiency, high strength, long service life, and easy positioning during drilling processing. .
  • a centering and helical cutting tool for composite positioning combined cutting comprising a tool head, wherein the tool head is integrally provided with at least one spiral strip, and each spiral strip has a helical auxiliary cutting edge along which the helical cutting edge is cut a spiral auxiliary cutting surface is formed on the outer side of the blade, and a spiral cutting surface having at least one first protrusion is formed on the spiral cutting surface of the spiral auxiliary cutting edge toward the front in the cutting direction, which is a composite spiral positioning table or at least one inner side
  • the outermost helical cutting surface of the composite helical cutting edge is a spiral heat dissipating surface, a helical sub-cutting edge and a spiral cooling surface or a spiral cutting surface or a spiral positioning table or a composite spiral positioning table and at least one inner convex composite spiral pair cutting a blade, a cutting edge extending to the tip end formed with a slitting edge or a positioning slitting edge or a composite positioning slitting blade formed with a flat blade,
  • a centering and helical cutting tool for composite positioning combined cutting comprising a tool head, wherein the tool head is integrally provided with at least one spiral strip, and each spiral strip has a helical auxiliary cutting edge along which the helical cutting edge is cut a spiral auxiliary cutting surface is formed on the outer side of the blade, and a spiral cutting surface having at least one first protrusion is formed on the spiral cutting surface of the spiral auxiliary cutting edge toward the front in the cutting direction, which is a composite spiral positioning table or at least one inner side Composite spiral secondary cutting edge, the outermost helical cutting surface is a spiral heat dissipation surface, and extends to the top cutting edge replacement page (Article 26)
  • a positioning slitting edge or a composite positioning slitting edge and a side edge or a composite positioning side edge are formed thereon, and a drill point is arranged at a center position of the tip end of the cutter head, and a center of the drill tip is provided with a tip without a chisel edge or with
  • a centering and helical cutting tool for composite positioning combined cutting comprising a tool head, wherein the tool head is integrally provided with at least one spiral strip, and each spiral strip has a helical auxiliary cutting edge along which the helical cutting edge is cut a spiral auxiliary cutting surface is formed on the outer side of the blade, and a spiral cutting surface having at least one primary projection is formed on the spiral cutting surface of the spiral auxiliary cutting edge toward the cutting direction, which is a composite spiral positioning table and at least one inner side
  • the composite spiral cutting edge, the outermost spiral cutting surface is a spiral heat dissipating surface, and the cutting edge extending to the top end is formed with a positioning slitting edge or a composite positioning slitting edge and a side edge or a composite positioning side edge in the cutter head
  • the spiral positioning table and the composite spiral cutting surface formed by the convex portion of the axial center portion and the composite spiral cutting edge extend to intersect the top end and the rear cutting surface to form a positioning cutting edge or a composite positioning cutting edge, the
  • the cutting edge or the cutting edge of the centering spiral cutting tool of the composite positioning composite cutting is formed with at least one composite groove edge which is overlapped on the notch edge or the notch edge and extends toward the rear cutting face or
  • the enlarged extension is formed with at least one groove or a composite groove.
  • the spiral cutting surface or the spiral heat dissipating surface or the spiral positioning surface of the centering and helical cutting tool of the composite positioning composite cutting intersects the rear cutting surface to form at least one primary cutting edge or a positioning cutting edge.
  • the positioning and cutting edge of the top end of the inner side of the cutter head of the centering and spiral cutting tool of the composite positioning composite cutting is extended to the shank to form a spiral positioning table.
  • the angle of the cutting edge or the cutting edge intersecting the helical minor cutting edge of the helical cutting surface of the centering spiral cutter of the composite positioning composite cutting is ⁇ 1 ⁇ 2 angle ⁇ Corner ⁇ ⁇ 3 ⁇ 4 angle ⁇
  • the top end of the plurality of spiral strips integrally provided by the cutter head of the centering helical cutter of the composite positioning composite cutting is coupled with the cutting insert as described above.
  • the composite positioning composite cutting centering helical cutter is characterized in that a projection of each of the spiral strips is convexly formed from a position of the tool axis toward an outer helical cutting edge.
  • the rear surface of the composite positioning composite cutting centering spiral cutter is formed with at least one groove intersecting the front cutting surface or the spiral heat sink or the spiral positioning table to form at least one notch edge, the groove
  • the bottom shape and the bottom shape of the notch are of any shape.
  • the cutting face or the spiral heat radiating surface or the front cutting face of the centering composite cutting of the composite positioning composite cutting intersects the rear cutting face to form at least a primary cutting edge or a positioning cutting edge.
  • the raised cutting edge or the drill tip of the centering spiral cutter of the composite positioning composite cutting A positioning slit is formed on the cutting edge and extends toward the shank to form a spiral positioning table.
  • the composite positioning composite cutting centering spiral cutter has at least one primary positioning cutting edge formed on the drill tip, at least one primary spiral positioning table and at least one primary spiral secondary cutting edge.
  • the cutting edge of the composite positioning composite cutting centering helical cutter is a straight edge or a concave edge or an inverted trapezoidal edge or a triangular blade or a square edge blade is formed with a cutting edge and a small side edge.
  • the angle between the cutting edge or the cutting edge intersecting the helical minor cutting edge at the outermost side of the centering helical cutter of the composite positioning composite cutting is an acute angle or a right angle or an obtuse angle.
  • At least two stages of helical minor cutting edges are formed on the helical cutting face.
  • a split cutting edge and a composite positioning small side edge of the composite cutting are formed on the cutting edge.
  • the angle between the split cutting edge formed on the outer front cutting edge and the outer helical minor cutting edge of the composite positioning small side edge is an acute angle or a right angle or an obtuse angle.
  • the spiral strip is at least one.
  • the friction between the side cutting edge and the helical secondary cutting surface is reduced by the setting of the dividing edge and the small side edge or the positioning cutting edge to extend the life of the tool, through the setting of the top or chisel edge and the centering cutting edge or S blade Effectively improve the stability of the tool, by the spiral heat dissipating surface provided on the spiral cutting surface of the tool head, or the convex spiral cutting surface, or the convex spiral positioning table and the inner convex spiral cutting edge, and Cutting edge or positioning 1 flat blade formed on the cutting edge, or 2 stepped edge or 3 notch edge which gradually decreases to the outside, or 4 composite notch edge which overlaps with the notch edge, or with the cutter head shaft 5 beveled edges with an included angle to the centerline or helical minor cutting edge, or 6 composite beveled edges with a certain angle to the beveled edge, or 1 flat or 2 stepped edge or 3 notched or 4 composite notch or The combination of 1 to 6 types of 5 slanted edges or 6 composite slanted
  • Fig. 1 is a schematic view of a cutter according to a first embodiment of the present invention.
  • Fig. 2 is a schematic view of a cutter according to a second embodiment of the present invention.
  • Figure 3 is a schematic view of a cutter of a third embodiment of the present invention.
  • Fig. 4 is a schematic view of a cutter according to a fourth embodiment of the present invention.
  • Fig. 5 is a schematic view of a cutter according to a fifth embodiment of the present invention.
  • Embodiments 1-5 there are mainly two spiral strips. The tool is described as an example.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1 :
  • the centering and helical cutting tool of the composite positioning composite cutting includes a tool head 18, and the tool head 18 is integrally provided with two spiral strips, and the surface of the spiral strip facing the cutting direction
  • the spiral cutting face 19, the top back side of the spiral cutting face 19 is the rear cutting face 20
  • the outermost side of the spiral strip is the helical minor cutting face 16, and the top side edge 10
  • the helical minor cutting face 16 and the helical cutting face 19 A helical minor cutting edge 12 is formed between them, a composite helical cutting surface 11 on the inner side, a composite helical cutting edge 13 , an outermost helical cutting surface, that is, a heat dissipation surface 22 , a helical secondary cutting surface 16 and a rear cutting surface 20 .
  • the intersection is formed with a side edge 10, the spiral cutting surface 19 intersects with the rear cutting surface 20 to form a cutting edge 8, and the rear cutting surface 20 intersects the heat dissipating surface 22 to form a cutting edge 9 which intersects with the composite positioning table 11 to form a composite side edge 17.
  • the rear cutting face 20 has a groove 21 intersecting the cutting face 19 to form a notch edge 14.
  • the bottom of the notch edge 14 may be trapezoidal, curved, triangular, square, and any shape.
  • the centering protrusion of the centering spiral cutter of the combined compound cutting is provided with a drill tip, and the tip of the drill tip is a tip or a chisel edge 1, and a fixed cutting surface 23, a top or a transverse blade 1 are disposed on both sides thereof.
  • Each side has a certain centring cutting edge 2, the outer side of the centering cutting edge 2 is a positioning cutting edge 3, a composite spiral positioning table 24 and a composite side edge 4, and a positioning cutting edge 5 and a positioning sub cutting edge 6, before the drill point
  • the frictional force of the side edge 10 and the helical secondary cutting surface 16 is reduced to extend the service life of the tool through the tip or chisel edge 1
  • the setting of the S-edge formed by the centering cutting edge 2 or the positioning cutting edge 3 effectively improves the stability of the tool and ensures the processing quality and precision of the workpiece.
  • the cutter since the drill tip is provided at the center top of the cutter head 18, the cutter has excellent stability, and the cutter is reduced in cutting the steel sheet by providing a notch on the cutting edge.
  • the cutting strength of the tool head 18 is also formed along the spiral sub-cutting edge 12, and the composite positioning table 11 is formed in the front portion of the composite positioning table 11 in the cutting direction. Therefore, the conventional cutting blade 13 is formed.
  • a new composite helical secondary cutting edge 13 is added, so that it can work with two secondary cutting edges, thereby being able to decompose the cutting force of the secondary cutting edge, reducing the frictional strength of the secondary cutting edge, and making the frictional heat
  • the amount of production is reduced, and the heat dissipation area of the tool head is increased, the tool head temperature is lowered, the tool life is extended, and high strength is maintained throughout the process.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the centering and helical cutting tool of the composite positioning composite cutting includes a tool head 18, and the tool head 18 is integrally provided with two spiral strips, and the surface of the spiral strip facing the cutting direction
  • the spiral cutting face 19, the top back side of the spiral cutting face 19 is the rear cutting face 20, the outermost side of the spiral strip is the helical minor cutting face 16, and the top
  • the side edge 10, the helical auxiliary cutting surface 16 and the helical cutting surface 19 are formed with a helical minor cutting edge 12, a helical positioning table 11, a composite helical secondary cutting edge 13, a heat dissipating surface 22, a helical secondary cutting surface 16 and a rear cutting surface.
  • the rear cutting surface 20 intersects to form a side edge 10
  • the spiral cutting surface 19 intersects with the rear cutting surface 20 to form a cutting edge 8
  • the rear cutting surface 20 intersects the heat dissipating surface 22 to form a cutting edge 9, which intersects with the composite positioning table 11 to form a composite side
  • the blade 17, the rear cutting surface 20 has a groove 21 intersecting the spiral cutting surface 19 to form a notch edge 14, the bottom of the notch edge 14 may be trapezoidal, curved, triangular, square and any shape, composite positioning composite cutting
  • the center of the centering of the centering spiral cutter is provided with a drill tip, the tip of the drill tip is a top or a chisel edge 1, and a fixed cutting surface 23 is disposed on each side of the centering spiral cutter, and the top or the side of the chisel edge 1 has a certain
  • the centring cutting edge 2, the outer side of the centering cutting edge 2 is a positioning cutting edge 3, the positioning table 24 and the small side edge 4, and the
  • the frictional force of the side edge 10 and the helical secondary cutting surface, ie, the helical secondary cutting surface 16, is reduced, extending the service life of the tool through the tip or chisel edge 1
  • the setting of the S-edge formed by the centering cutting edge 2 or the positioning cutting edge 3 effectively improves the stability of the tool and ensures the processing quality and precision of the workpiece.
  • the drill head is provided with a drill tip at the center top of the cutter head 18, the cutter has excellent stability, and at least one spiral cut is formed by being provided with a notch on the cutting edge.
  • a new composite helical secondary cutting edge 13 is added to the conventional cutting head, thereby enabling two
  • the auxiliary cutting edge works to decompose the cutting force of the auxiliary cutting edge, reduce the frictional strength of the secondary cutting edge, reduce the amount of frictional heat generation, and increase the heat dissipation area of the tool head, reduce the temperature of the tool head, and use the tool. Long life and high strength throughout the process.
  • the applicable range of the tool of the present invention can be expanded, and it can be applied to the processing of a plurality of uneven workpieces, and the cutter head can be effectively prevented from collapsing.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the centering and helical cutting tool of the composite positioning composite cutting includes a tool head 18, and the tool head 18 is integrally provided with two spiral strips, and the surface of the spiral strip facing the cutting direction In the spiral cutting surface 19, the top back side of the spiral cutting surface 19 is the rear cutting surface 20, the outermost side surface of the spiral strip is the helical auxiliary cutting surface 16, and the spiral auxiliary cutting surface 16 and the outermost spiral cutting surface 19 are formed.
  • the spiral minor cutting edge 12, the inner convex spiral auxiliary cutting surface, that is, the composite positioning table 11, the composite spiral auxiliary cutting edge 13, the outermost spiral cutting surface, that is, the heat radiating surface 22, the helical auxiliary cutting surface 16 and the rear cutting surface 20 The intersection is formed with a side edge 10, the spiral cutting surface 19 intersects with the rear cutting surface 20 to form a cutting edge 8, and the rear cutting surface 20 intersects the heat dissipating surface 22 to form a cutting edge 9, which intersects with the composite positioning table 11 to form a composite side edge 17.
  • the rear cutting face 20 has a groove 21 intersecting the cutting face 19 to form a notch edge 14.
  • the bottom of the lip 14 can be trapezoidal, curved, triangular, square and any other shape.
  • the center of the center of the composite positioning of the composite cutting core is provided with a drill tip, and the tip of the drill tip is a tip or a chisel edge. 1 , a fixed cutting surface 23 is arranged on each side of the core, and a cutting edge 2 is arranged on both sides of the top or the horizontal edge 1 , and the outer side of the centering cutting edge 2 is a positioning cutting edge 3 , and the positioning cutting edge 6 is positioned , cutting edge 8.
  • the slitting blade 9 is machined into the groove 21, in the structure of the first and second embodiments, A portion of the notch 14 is formed such that the center of the drill tip is disposed parallel to the outer edge 10 or has a slight angle 1 so that the positioning cutting edge 3 and the centering cutting edge 2 and the chisel edge 1 on both sides form a S
  • the edge lengthens the sum of the cutting edges and makes the centering cutting edge 2 reduce the force of the positioning cutting edge 3, which improves the stability of the tool and prolongs the service life of the tool head.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the centering and helical cutting tool of the composite positioning composite cutting includes a tool head 18, and the tool head 18 is integrally provided with two spiral strips, and the surface of the spiral strip facing the cutting direction
  • the spiral cutting face 19, the top back side of the spiral cutting face 19 is the rear cutting face 20, the outermost side of the spiral strip is the screw table 16, and the top side edge 10, between the helical minor cutting face 16 and the helical cutting face 19.
  • the spiral minor cutting edge 12 is formed, the inner helical cutting surface is the composite positioning table 11, the composite helical secondary cutting edge 13, the outermost spiral cutting surface is the heat radiating surface 22, and the helical secondary cutting surface 16 intersects with the rear cutting surface 20 to form There is a side edge 10, the spiral cutting surface 19 intersects the rear cutting surface 20 to form a cutting edge 8, and the rear cutting surface 20 intersects the heat dissipating surface 22 to form a cutting edge 9 which intersects with the composite positioning table 11 to form a composite side edge 17, The rear cutting face 20 intersects the helical cutting face 19 to form a flat cutting edge 8.
  • the center of the center of the centering of the composite positioning composite cutting tool has a drill tip and a tip of the drill tip.
  • the top or the transverse edge 1 is provided with a certain cutting surface 23 on each side thereof, and each side of the top or the horizontal edge 1 has a certain centring cutting edge 2, and the outer side of the centering cutting edge 2 is a positioning cutting edge 3,
  • the positioning table 24 and the small side edge 4 and the positioning cutting edge 5 and the positioning minor cutting edge 6, the composite positioning auxiliary cutting edge 7 and the cutting edge 8 which are convex at the front end of the drill point.
  • the cutting edge 8 is a straight straight edge.
  • the cutting edge 8 is provided with an inner composite positioning screw table 24 and an outer spiral heat sink 11 on the upper and outer spiral tables, thereby improving the cutting efficiency and stability of the tool head and prolonging the service life of the tool head.
  • the cutting edge is a constant edge
  • the platform is processed on the workpiece and the efficiency can be greatly improved and the service life of the tool head can be prolonged.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the centering and helical cutting tool of the composite positioning composite cutting includes a tool head 18, and the tool head 18 is integrally provided with two spiral strips, and the surface of the spiral strip facing the cutting direction In the spiral cutting surface 19, the top back side of the spiral cutting surface 19 is the rear cutting surface 20, the outermost side of the spiral strip is the helical auxiliary cutting surface 16, and the spiral auxiliary cutting surface 16 and the outermost spiral cutting surface 19 are formed.
  • the spiral auxiliary cutting edge 12, the inner convex spiral auxiliary cutting surface, that is, the composite positioning table 11, the composite spiral auxiliary cutting edge 13, the outermost spiral cutting surface, that is, the heat dissipating surface 22, and the spiral auxiliary cutting surface 16 and the rear cutting surface 20 intersect to form
  • There is a side edge 10 a spiral cutting surface 19 intersects with the rear cutting surface 20 to form a cutting edge 8
  • a rear cutting surface 20 intersects the heat dissipating surface 22 to form a cutting edge 9 which intersects with the composite positioning table 11 to form a composite side edge 17,
  • the rear cutting face 20 has a groove 21 intersecting the cutting face 19 to form a notch edge 14. Since the notch edge 14 is extended to the side edge 10, the cutting edge 9 is also part of the notch edge 14.
  • the bottom of the notch 14 can be trapezoidal, curved, triangular, square and any other shape.
  • the center of the centering of the composite positioning composite cutting tool has a drill tip, and the tip of the drill tip is top or horizontal.
  • the blade 1 is provided with a certain core cutting surface 23 on each side thereof, and each side of the top or side edge 1 has a certain centring cutting edge 2.
  • the centering and helical cutting tool of the composite positioning composite cutting of the fifth embodiment in the structure of the first four embodiment, the cutting edge 9 is machined into the groove 21 on the outer side of the cutting edge 8 of each spiral strip, A portion of the notch 14 having a center of the drill tip disposed parallel to the outer edge 10 or having a slight angle 1 forms a S-edge of the centering slitting edge 2 and the chisel edge 1 on both sides, extending each The sum of the cutting edges reduces the force applied to the centering cutting edge 2, which improves the stability of the tool and prolongs the service life of the tool head.
  • Embodiments 1 to 4 since the drill tip is formed as a ring-shaped iron filing, a tapered surface left after drilling on the workpiece facilitates the positioning of the tool head. Since the head has a spiral heat sink formed on the outer side, a cutting edge is formed on the cutting edge to decompose the resistance of the tool head during cutting, and the cutting effect of the tool head is maintained. The rate increases the service life of the tool head and maintains high strength and improves work efficiency during drilling.
  • the tool shank of the present embodiment can adopt the same configuration as that of the first embodiment, and thus the description thereof will be omitted.
  • the cutter of the present invention may have a plurality of spiral strips, and the cutting edge of each spiral strip may adopt a flat edge as described above or an outer height. a progressively lowering 2 stepped edge, or a 3 notch, or a 4 composite notch that overlaps the notch edge, or a 5 beveled edge that is at an angle to the axial centerline or helical secondary cutting edge of the tool head, or a 6-blade beveled edge with a certain angle of the beveled edge, or 1 to 6 of 1 flat blade or 2 stepped edge or 3 notch edge or 4 composite notch blade or 5 beveled edge or 6 compound beveled edge
  • the combined blade of the method is implemented. As shown in Fig. 5, a centering spiral cutter having a composite positioning composite cutting with a triangular drill tip is shown, and each of the spiral heat sinks and the centering cutting edge structure are the same as those of the embodiment 1-4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling Tools (AREA)

Abstract

L'invention porte sur un outil de coupe hélicoïdal à positionnement composite et centrage de coupe composite, qui comprend une pointe d'outil de coupe (18), la pointe d'outil de coupe comportant de façon intégrée une pluralité de bandes hélicoïdales. Une arête de coupe auxiliaire hélicoïdale (12) est formée sur chaque bande hélicoïdale ; une plateforme hélicoïdale est formée le long du côté extérieur de l'arête de coupe auxiliaire hélicoïdale (12), une surface hélicoïdale de dissipation de la chaleur (22), une plateforme hélicoïdale de dissipation de la chaleur et une seconde arête de coupe auxiliaire hélicoïdale sont formées sur la surface de coupe de l'arête de coupe auxiliaire hélicoïdale (12) en faisant face à la partie avant de la direction de coupe ; une arête de fendage et une petite arête de coupe latérale sont formées sur l'arête de coupe qui s'étend jusqu'à l'extrémité supérieure ; une pointe de foret est disposée en saillie au centre du sommet de la pointe d'outil de coupe ; une pointe ou une arête de burin (1) parallèle au bord latéral extérieur de l'outil de coupe, ou qui forme un très petit angle avec ce bord, est formée au centre de la pointe de foret ; et une arête de fendage de centrage (2) formant un angle obtus avec l'arête de coupe de la surface de coupe est formée sur le côté extérieur de la pointe ou de l'arête de burin (1).
PCT/CN2011/001823 2010-11-04 2011-10-31 Outil de coupe hélicoïdal à positionnement composite et centrage de coupe composite WO2012058863A1 (fr)

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CN 201010542930 CN102039439B (zh) 2010-11-04 2010-11-04 一种复合定位复合切削的定心螺旋刀具
CN201010542930.1 2010-11-04

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Publication number Priority date Publication date Assignee Title
CN102039439B (zh) * 2010-11-04 2013-06-05 李仕清 一种复合定位复合切削的定心螺旋刀具
CN103381495B (zh) * 2012-05-03 2016-03-23 李仕清 一种复合切削的钻头刀头
CN103381496A (zh) * 2012-05-03 2013-11-06 李仕清 复合定位切削的螺旋刀具
CN103381497A (zh) * 2012-05-03 2013-11-06 李仕清 一种复合定位复合切削的定心螺旋刀具
CN103706845A (zh) * 2012-10-01 2014-04-09 李仕清 复合定位切削的螺旋刀具
CN103706843A (zh) * 2012-10-01 2014-04-09 李仕清 一种复合切削的钻头刀头

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CN102039439A (zh) * 2010-11-04 2011-05-04 李仕清 一种复合定位复合切削的定心螺旋刀具

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US2230645A (en) * 1938-02-01 1941-02-04 Western Electric Co Drill
GB1419624A (en) * 1972-03-21 1975-12-31 Flower J W Drills for use in drilling and the like operations
EP0775560A2 (fr) * 1995-11-24 1997-05-28 Kanefusa Corporation Foret pour travailler le bois
CN2303698Y (zh) * 1997-08-30 1999-01-13 由光宇 台阶式麻花钻
CN2902538Y (zh) * 2005-10-31 2007-05-23 李仕清 螺旋多级刀具
CN201295785Y (zh) * 2008-01-21 2009-08-26 周安善 立铣刀状外刃,外刃锋角200°的多刃尖薄板麻花钻
CN102039439A (zh) * 2010-11-04 2011-05-04 李仕清 一种复合定位复合切削的定心螺旋刀具

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