SE0700991L - Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method - Google Patents

Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method

Info

Publication number
SE0700991L
SE0700991L SE0700991A SE0700991A SE0700991L SE 0700991 L SE0700991 L SE 0700991L SE 0700991 A SE0700991 A SE 0700991A SE 0700991 A SE0700991 A SE 0700991A SE 0700991 L SE0700991 L SE 0700991L
Authority
SE
Sweden
Prior art keywords
grinding
button
abrasive wheel
carrying
well
Prior art date
Application number
SE0700991A
Other languages
Swedish (sv)
Inventor
Goeran Stenberg
Stefan Forsgren
Original Assignee
Atlas Copco Secoroc Ab
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 Atlas Copco Secoroc Ab filed Critical Atlas Copco Secoroc Ab
Priority to SE0700991A priority Critical patent/SE0700991L/en
Priority to PCT/SE2008/050368 priority patent/WO2008133581A1/en
Publication of SE0700991L publication Critical patent/SE0700991L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/60—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of tools not covered by the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/14—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the temperature during grinding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/02—Wheels in one piece
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/02—Wheels in one piece

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Abstract

The invention concerns a method for grinding button drill bits, in which an abrasive wheel is used to restore the original form of a button in a button drill-bit. The grinding is carried out according to the invention at a temperature in the grinding region of approximately 250-700 °C. The invention concerns also an arrangement for the grinding of button drill-bits in which an abrasive wheel is used to restore the original form of a button in the button drill-bit, which abrasive wheel is provided with upright side flanges and an intermediate groove, where the arrangement comprises an arrangement for directing a stream of a cooling agent onto the side flanges and groove of the abrasive wheel. The invention concerns also an abrasive wheel that comprises diamonds with a mean particle size of 200 µm or greater, embedded in a matrix.
SE0700991A 2007-04-25 2007-04-25 Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method SE0700991L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE0700991A SE0700991L (en) 2007-04-25 2007-04-25 Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method
PCT/SE2008/050368 WO2008133581A1 (en) 2007-04-25 2008-03-31 Method and arrangement for grinding button drill bits, and an abrasive wheel for carrying out the method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0700991A SE0700991L (en) 2007-04-25 2007-04-25 Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method

Publications (1)

Publication Number Publication Date
SE0700991L true SE0700991L (en) 2008-10-26

Family

ID=39925921

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0700991A SE0700991L (en) 2007-04-25 2007-04-25 Method and apparatus for grinding pin drill bits, as well as grinding wheel for carrying out the method

Country Status (2)

Country Link
SE (1) SE0700991L (en)
WO (1) WO2008133581A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA777206B (en) * 1977-12-05 1979-05-30 Boart Int Ltd Button grinding
SE428541B (en) * 1979-09-12 1983-07-11 Finsliparna Ab Arrangement for restoring the shape of worn boring bits by grinding
FI67500C (en) * 1983-09-12 1985-04-10 Airam Ab Oy ANORDNING FOER VAESSNING AV STIFTKRONA FOER BERGSBORR
SE463754B (en) * 1989-05-24 1991-01-21 Inovac Ab DEVICE FOR HANDHALLEN GRINDING MACHINE FOR GRIPPING CUTTER DRILLS

Also Published As

Publication number Publication date
WO2008133581A1 (en) 2008-11-06

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Legal Events

Date Code Title Description
NAV Patent application has lapsed