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WO2018176743A1 - Fraise à bout sphérique - Google Patents

Fraise à bout sphérique Download PDF

Info

Publication number
WO2018176743A1
WO2018176743A1 PCT/CN2017/102123 CN2017102123W WO2018176743A1 WO 2018176743 A1 WO2018176743 A1 WO 2018176743A1 CN 2017102123 W CN2017102123 W CN 2017102123W WO 2018176743 A1 WO2018176743 A1 WO 2018176743A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting portion
edge
round nose
nose cutter
face
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.)
Ceased
Application number
PCT/CN2017/102123
Other languages
English (en)
Chinese (zh)
Inventor
黄静
何于亮
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.)
Shenzhen Xinguoyu Precision Tools Ltd
Original Assignee
Shenzhen Xinguoyu Precision Tools 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
Publication date
Application filed by Shenzhen Xinguoyu Precision Tools Ltd filed Critical Shenzhen Xinguoyu Precision Tools Ltd
Publication of WO2018176743A1 publication Critical patent/WO2018176743A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C5/00—Milling-cutters
    • B23C5/02—Milling-cutters characterised by the shape of the cutter
    • B23C5/10—Shank-type cutters, i.e. with an integral shaft

Definitions

  • the present invention relates to the field of machining tools, and more particularly to a round nose cutter.
  • a milling cutter is a rotary cutter having one or more cutter teeth for milling. In the work, each tool cuts the margin of the wages intermittently. Milling cutters are mainly used to machine planes, steps, grooves, forming surfaces and cutting workpieces on a milling machine.
  • a round nose cutter comprising a cutter bar made of a ceramic material and a cutting portion, one end of the cutter bar being coupled to the cutting portion, the cutting portion including a spirally disposed land, the land including the peripheral edge, the front edge of the blade
  • the angle is 4° ⁇ 6°; the first relief angle of the peripheral edge is 11° ⁇ 13°; the second relief angle of the peripheral edge is 24° ⁇ 26°.
  • the rake angle of the land is from 29° to 31°.
  • the land further includes a rake face and a flank face, and the peripheral edge is connected between the rake face and the flank face, and the width of the flank face is 0.55 mm to 0.65. Mm.
  • the cutting portion further includes a transition portion and an end tooth, the transition portion is connected between the end tooth and the land, the transition portion is curved, and the arc radius of the transition portion is 0.09. Mm ⁇ 0.11mm.
  • the transition angle of the transition portion is 6°.
  • the end tooth includes two long end teeth and two short end teeth, and the two long end teeth are symmetrically disposed along the axis of the cutting portion, and the two short end teeth are along The axis of the cutting portion is symmetrically arranged, and the eccentric distance between the two long end teeth is 0.05 mm to 0.07 mm; the edge inclination angle of the end teeth is 0.5° to 1°.
  • the end face of the long end tooth has a width of 0.18 mm to 0.22 mm.
  • the end surface of the cutting portion is provided with two long chip flutes and two short chip flutes, and the long chip flutes and the short chip flutes are respectively located at the long end teeth and short Between the end teeth, the end face of the long chip flute is 0.
  • the end face width of the short chip pocket is 0.3mm ⁇ 0.4mm.
  • the angle of the long chip flute is 40°; the angle of the short chip flute is 50°
  • the end tooth includes a front end surface, an end edge and a rear end surface, and the end edge is connected between the front end surface and the rear end surface, and the front edge has a rake angle of 5°;
  • the first relief angle is 5° ⁇ 7°;
  • the second relief angle of the end edge is 17° ⁇ 19°.
  • the round nose cutter of the present invention comprises a cutter bar made of a ceramic material and a cutting portion, one end of the cutter bar being connected to the cutting portion, the cutting portion including a spirally disposed land, the blade including a peripheral edge, and a front edge of the blade
  • the angle is 4° ⁇ 6°; the first relief angle of the peripheral edge is 11° ⁇ 13°; the second relief angle of the peripheral edge is 24° ⁇ 26°.
  • the round nose cutter of the invention has high melting point, high hardness and high wear resistance, which increases the service life of the round nose cutter and can meet the needs of customers. Brief description of the drawing
  • FIG. 1 is a schematic structural view of a round nose cutter of the present invention.
  • FIG. 1b is a schematic view of the measurement of the chip pocket of the round nose tool of the present invention.
  • FIG. 1c is a schematic view of the measured tip edge angle of the round nose cutter of the present invention.
  • FIG. 2 is a cross-sectional structural view of a cutting portion of the present invention.
  • FIG. 3 is a partial structural schematic view of the cutting portion of FIG. 2.
  • 4 is a partial schematic view showing a peripheral edge of a cutting portion of the present invention.
  • FIG. 5 is a partial schematic view of a transition portion of the present invention.
  • FIG. 6 is a schematic end view of the cutting portion of the present invention.
  • FIG. 7 is a partial schematic view of the end teeth of the cutting portion of the present invention.
  • FIG. 8 is an enlarged schematic view of the end teeth of FIG. 7.
  • FIG. la is a schematic structural view of a round nose cutter of the present invention.
  • Figure lb is a schematic illustration of the measurement of the chip pocket of the round nose tool of the present invention.
  • Figure lc is a schematic illustration of the measured tip edge angle of the round nose tool of the present invention.
  • the round nose cutter 10 includes a shank 11 and a cutting portion 12 connected to the end of the shank 11.
  • the cutting portion 12 includes four land 121, a transition portion 122 and four end teeth 123.
  • Each land 121 is spirally disposed along the axial direction of the cutting portion 12, and the transition portion 122 is connected between the land and the end teeth, and the end teeth 12 are provided.
  • 3 is symmetrically disposed along the axis of the cutting portion 12.
  • the round nose cutter 10 is formed of a ceramic material to form a cutter bar 11 and a cutting portion 12.
  • the spiral angle oil of each land 121 is 29° to 31°, preferably 30°; the effective blade length W of the cutting portion 12 is 10 mm to 10.3 mm;
  • FIG. 2 is a cross-sectional structural view of a cutting portion of the present invention.
  • Fig. 3 is a partial structural schematic view of the cutting portion of Fig. 2;
  • the land 121 of the cutting portion 12 includes a rake face 101, a peripheral edge 102 and a flank face 103, and the peripheral edge 102 is connected between the rake face 101 and the flank face 103;
  • the rake angle ⁇ 2 of the blade 102 is 4° ⁇ 6°, preferably 5°;
  • the first back angle ⁇ 3 of the peripheral edge 102 is 11° ⁇ 13°, preferably 12°;
  • the second rear corner ⁇ 4 of the peripheral edge 102 is 24 ° ⁇ 26°, preferably 25°.
  • the flank 103 of the land 121 has a width L1 of 0.55 mm ⁇ 0.65 mm, preferably 0.6 mm.
  • the core portion D of the cutting portion 12 is 1.75 mm to 1.85 mm, preferably 1.8 mm.
  • the flank 103 of the land 121 includes a first blade surface 103a and a second blade surface 103b.
  • the first blade surface 103a is coupled to the peripheral blade 102 and the second blade.
  • the width L2 of the first blade face 103a is 0.27 mm to 0.33 mm, preferably 0.3 mm.
  • FIG. 4 is a partial schematic view showing a peripheral edge of a cutting portion of the present invention.
  • the end portion of the peripheral edge 102 of the cutting portion 12 is provided with a facet 104, and the width L3 of the facet 104 is 0.08 mm to 0.12 mm.
  • the transition portion 122 has an arc shape, and the arc radius R of the transition portion 122 is 0.09 mm to 0.11 mm, preferably 0.1 mm; the back angle ⁇ 5 of the transition portion 122 is 6°.
  • the end tooth 123 includes two long end teeth 123a and two short end teeth 123b.
  • the two long end teeth 123a are symmetrically disposed along the axis of the cutting portion 12, and the two short end teeth 123b are cut along the cutting edge.
  • the axis of the portion 12 is symmetrically arranged.
  • the eccentric distance J between the two long end teeth 123a is 0.05 mm to 0.07 mm, preferably 0.06 mm; and the end face width L4 of the long end tooth 123b is 0.18 mm to 0.22 mm.
  • the end surface of the cutting portion 12 is provided with two long chip flutes and two short chip flutes, and the long chip flutes and the short chip flutes are respectively located at the long end teeth 123a and the short end teeth 123b. Between the long chip flutes, the end face width L5 is 0.6mm
  • the end face width of the short chip pocket L6 is 0.3mm ⁇ 0.4mm.
  • FIG. 7 is a partial schematic view of the end teeth of the cutting portion of the present invention.
  • the angle ⁇ 6 of the long chip flute is 40°; the angle ⁇ 7 of the short chip flute is 50°; the edge inclination angle ⁇ 8 of the end tooth of the cutting portion is 0.5 ° ⁇ 1 °.
  • the end tooth 123 of the cutting portion 12 includes a front end surface 105, an end edge 106 and a rear end surface 107, and the end edge 106 is coupled between the front end surface 105 and the rear end surface 107.
  • the front corner ⁇ 9 of the end edge 106 is 5°; the first relief angle ot10 of the end edge 106 is 5° ⁇ 7°, preferably 6°; the second relief angle l1 of the end edge 106 is 17° ⁇ 19°, preferably It is 18°.
  • the rear end surface 107 includes a first end surface 107a and a second end surface 107b.
  • the first end surface 107a is connected between the end edge 106 and the second end surface 107b.
  • the width L7 of the first end surface 107a is 0.27 mm to 0.33. Mm, preferably 0.3 mm.
  • the round nose cutter 10 of the present invention comprises a cutter bar 11 made of a ceramic material and a cutting portion 12, one end of the cutter bar 11 Connected to the cutting portion 12, the cutting portion 12 includes a spirally disposed land 121, the land 121 includes a peripheral edge 102, the front corner ⁇ 2 of the peripheral edge 102 is 4° to 6°; and the first rear corner ⁇ 3 of the peripheral edge 102 is 11 ° ⁇ 13°; the second relief angle 0C4 of the peripheral edge 102 is 24° ⁇ 26°.
  • the round nose cutter 10 of the present invention has a high melting point, high hardness, and high wear resistance, which increases the service life of the round nose cutter 10 and can meet customer needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

L'invention concerne une fraise à bout sphérique (10), comprenant une tige (11) constituée d'un matériau céramique et une partie de fraisage (12). Une extrémité de la tige (11) est reliée à la partie de fraisage (12). La partie de fraisage (12) comprend des marges hélicoïdales (121). Chaque marge (121) comprend un bord périphérique (102). Un angle d'attaque du bord périphérique (102) est de 4° à 6°. Un premier angle de dépouille du bord périphérique (102) est de 11° à 13°. Un second angle de dépouille du bord périphérique (102) est de 24° à 26°. La fraise à bout sphérique (10) présente un point de fusion élevé, une dureté élevée et une capacité d'usure élevée, et la durée de vie de la fraise à bout sphérique (10) est prolongée.
PCT/CN2017/102123 2017-04-01 2017-09-18 Fraise à bout sphérique Ceased WO2018176743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201720346971.0U CN206717114U (zh) 2017-04-01 2017-04-01 圆鼻刀具
CN201720346971.0 2017-04-01

Publications (1)

Publication Number Publication Date
WO2018176743A1 true WO2018176743A1 (fr) 2018-10-04

Family

ID=60503737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/102123 Ceased WO2018176743A1 (fr) 2017-04-01 2017-09-18 Fraise à bout sphérique

Country Status (2)

Country Link
CN (1) CN206717114U (fr)
WO (1) WO2018176743A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109128325A (zh) * 2018-09-27 2019-01-04 基准精密工业（惠州）有限公司 球刀
CN109482952A (zh) * 2019-01-08 2019-03-19 昆山欧思克精密工具有限公司 一种成型错齿铣刀

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003285220A (ja) * 2002-03-28 2003-10-07 Toshiba Tungaloy Co Ltd 油穴付きエンドミル
CN201783709U (zh) * 2010-03-16 2011-04-06 沈阳飞机工业（集团）有限公司 加工装配后铝青铜衬套孔用组合铰刀
CN103521843A (zh) * 2012-07-06 2014-01-22 哈尔滨飞机工业集团有限责任公司 深孔反拉铰刀

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003285220A (ja) * 2002-03-28 2003-10-07 Toshiba Tungaloy Co Ltd 油穴付きエンドミル
CN201783709U (zh) * 2010-03-16 2011-04-06 沈阳飞机工业（集团）有限公司 加工装配后铝青铜衬套孔用组合铰刀
CN103521843A (zh) * 2012-07-06 2014-01-22 哈尔滨飞机工业集团有限责任公司 深孔反拉铰刀

Also Published As

Publication number Publication date
CN206717114U (zh) 2017-12-08

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