EP1008721A1 - Outil de coupe ou de creusement et plaquette de coupe associée - Google Patents

Outil de coupe ou de creusement et plaquette de coupe associée Download PDF

Info

Publication number
EP1008721A1
EP1008721A1 EP99124172A EP99124172A EP1008721A1 EP 1008721 A1 EP1008721 A1 EP 1008721A1 EP 99124172 A EP99124172 A EP 99124172A EP 99124172 A EP99124172 A EP 99124172A EP 1008721 A1 EP1008721 A1 EP 1008721A1
Authority
EP
European Patent Office
Prior art keywords
cutting
tool
cutting insert
clearing
edges
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
EP99124172A
Other languages
German (de)
English (en)
Other versions
EP1008721B1 (fr
Inventor
Heinrich Bauschulte
Marco Schumann
Wolfgang Wald
Martina Stuckardt
Ernst Heiderich
Reinhold Walter
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.)
Element Six Holding GmbH
Original Assignee
Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik
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 Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik, Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik filed Critical Boart Longyear GmbH and Co KG Hartmetallwerkzeugfabrik
Publication of EP1008721A1 publication Critical patent/EP1008721A1/fr
Application granted granted Critical
Publication of EP1008721B1 publication Critical patent/EP1008721B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
    • E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/18—Mining picks; Holders therefor
    • E21C35/188—Mining picks; Holders therefor characterised by adaptations to use an extraction tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/12—Freely movable cutting edge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y10T407/1962—Specified tooth shape or spacing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/23—Cutters, for shaping including tool having plural alternatively usable cutting edges
    • Y10T407/235—Cutters, for shaping including tool having plural alternatively usable cutting edges with integral chip breaker, guide or deflector

Definitions

  • the invention relates to a cutting insert for a a longitudinal axis to be rotatably installed in a tool holder Cutting or breaking tool, especially for one Turning chisels, according to the preamble of claim 1 and one such cutting or breaking tool even after Preamble of claim 5.
  • Such tools are rotatably installed in tool holders, which are usually on the outer surface of a rotating Roller are attached.
  • the heads of the tool bodies and the intermediate areas of the cutting inserts are in the in practice known tools conical and with round Cross section formed.
  • Another, in WO 94/13932 The hard metal insert described has a ribbed intermediate area on, which improves broaching should be achieved because of the areas between the ribs the removal of cut or broken pieces Serve material. Due to the mostly tar-containing to be processed However, these rib gaps settle in material quickly, so that the improved clearance behavior only is given at short notice.
  • the invention is therefore concerned with the problem of a generic cutting insert and a generic Cutting or breaking tool to specify the improved and permanent clearing, cutting and breaking properties exhibit.
  • this problem is solved by a cutting insert with the features of claim 1 and a cutting or Breaking tool with the features of claim 5 solved.
  • the cutting insert 1 shown in FIGS. 1a to 1c has a conical tip 2, a transition region 3 and a foot 4 on.
  • the peripheral area of the transition area 3 is formed by six clearing surfaces 5, which are under training of clearing and cutting edges 6 adjoin each other.
  • the clearing surfaces 5 are against the longitudinal axis 7 of the cutting insert 1 inclined so that they tip with this one Include angle ⁇ , which is preferably less than 45 ° is.
  • This essentially gives the cutting insert 1 conical shape that in the illustrated embodiment has a hexagonal cross section.
  • the angle ⁇ as possible small to choose as much material as possible close to the To locate tip 2.
  • the clearing surfaces go as shown 5 rounded in the foot 4 over what in terms of Stability is also cheap.
  • the clearing surfaces 5 can also be concave, which causes the clearing and cutting edges 6 have a sharper design and greater freedom 8 trained to pick up and transport away material become.
  • the clearing and cutting edges 6 act both embodiments as a shovel for material removal and also resist the material, that to a smooth rotation and therefore one uniform wear of the tool leads.
  • the penetration behavior can improve the between the tip 2 and the clearing surfaces 5 obtained edges 9 also be formed as sharp edges.
  • Fig. 3 is a turning tool with a conventional tool body 10 and a cutting insert 1 according to the invention shown.
  • the tool body 10 essentially has one cylindrical shaft 11 for rotatable installation in a tool holder and a head 12 with which the Cutting insert 1 is preferably connected by soldering.
  • Fig. 4 shows another tool embodiment in which the head 12 of the tool body 10 as the cutting insert 1 likewise has surfaces 13 distributed over its circumference, which adjoin one another to form edges 14.
  • This shape of the head 12 of the tool body 10 can be used especially when the tool is deeply penetrated in the material to be processed the cutting, overburden and Further improve turning behavior. This effect will still be there amplified when, as can be seen in particular in Fig. 4b is, the edges 14 of the head 12 to the clearing and cutting edges 6 of the transition area of the cutting insert 1 are staggered. This will remove the material in a screw movement that promotes removal offset and ensures an even rotation of the tool, by covering its circumferential area in every area either on top of cutting insert 1 or lower on Head 12 of the tool body 10 has an edge 6.14 that rotates the tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Drilling Tools (AREA)
  • Milling Processes (AREA)
  • Earth Drilling (AREA)
  • Surgical Instruments (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
EP99124172A 1998-12-12 1999-12-03 Outil de coupe ou de creusement et plaquette de coupe associée Expired - Lifetime EP1008721B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19857451 1998-12-12
DE19857451A DE19857451A1 (de) 1998-12-12 1998-12-12 Schneid- oder Brechwerkzeug sowie Schneideinsatz für dieses

Publications (2)

Publication Number Publication Date
EP1008721A1 true EP1008721A1 (fr) 2000-06-14
EP1008721B1 EP1008721B1 (fr) 2002-08-21

Family

ID=7890917

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124172A Expired - Lifetime EP1008721B1 (fr) 1998-12-12 1999-12-03 Outil de coupe ou de creusement et plaquette de coupe associée

Country Status (5)

Country Link
US (2) US6354771B1 (fr)
EP (1) EP1008721B1 (fr)
JP (1) JP2000179275A (fr)
DE (2) DE19857451A1 (fr)
ES (1) ES2182450T3 (fr)

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Also Published As

Publication number Publication date
JP2000179275A (ja) 2000-06-27
EP1008721B1 (fr) 2002-08-21
US20020164215A1 (en) 2002-11-07
DE19857451A1 (de) 2000-06-15
DE59902407D1 (de) 2002-09-26
US7455484B2 (en) 2008-11-25
US6354771B1 (en) 2002-03-12
ES2182450T3 (es) 2003-03-01

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