CA2140573A1 - Drilling Tool for Metallic Materials - Google Patents

Drilling Tool for Metallic Materials

Info

Publication number
CA2140573A1
CA2140573A1 CA2140573A CA2140573A CA2140573A1 CA 2140573 A1 CA2140573 A1 CA 2140573A1 CA 2140573 A CA2140573 A CA 2140573A CA 2140573 A CA2140573 A CA 2140573A CA 2140573 A1 CA2140573 A1 CA 2140573A1
Authority
CA
Canada
Prior art keywords
drilling blade
centering
bore
slot
limb
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
CA2140573A
Other languages
French (fr)
Other versions
CA2140573C (en
Inventor
Holger Rodel
Manfred Grunsky
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.)
STELLRAM GmbH
Original Assignee
STELLRAM GmbH
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 STELLRAM GmbH filed Critical STELLRAM GmbH
Priority to CA002140573A priority Critical patent/CA2140573C/en
Publication of CA2140573A1 publication Critical patent/CA2140573A1/en
Application granted granted Critical
Publication of CA2140573C publication Critical patent/CA2140573C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/12—Adapters for drills or chucks; Tapered sleeves

Landscapes

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

Abstract

A drilling tool for metallic materials comprises a holder (1) having an axial clamping slot in which a plate-shaped drilling blade (2) is inserted and clamped against a limb (8) of the clamping slot by means of a threaded pin (3), which is provided with a head (21) and which engages in a bore (15) in the drilling blade (2) and in a bore (12) in said limb (8). The centre axis (13) of the limb bore (12) is offset relative to the centre axis (24) of the drilling blade bore (15). The mutually facing circumferential edges of the head (21) of the threaded pin and the bore (15) of the drilling blade is bevelled. A centering pin (11) is inserted in the holder (1) and engages in a centering slot (18) in that side (17) of the drilling blade (2), which is contacting the base surface (9) of the clamping slot (4) to center the drilling blade (2) with respect to the rotatio-nal axis (6) of the holder (1). For achieving a more exact centering the nominal width of the centering slot (18) is selected to be greater than that of the portion of the cen-tering pin (11) engaging in the centering slot (18), while the direction and amount of the offset of the central axes (13, 24) of the bore (15) of the drilling blade and the bo-re (12) of the limb are selected such that in the tightened state of the threaded pin (3) only one side face (20) of the centering slot (18) bears on one side of the centering pin (11) in the centered position of the drilling blade (2).
CA002140573A 1995-01-19 1995-01-19 Drilling tool for metallic materials Expired - Lifetime CA2140573C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002140573A CA2140573C (en) 1995-01-19 1995-01-19 Drilling tool for metallic materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002140573A CA2140573C (en) 1995-01-19 1995-01-19 Drilling tool for metallic materials

Publications (2)

Publication Number Publication Date
CA2140573A1 true CA2140573A1 (en) 1996-07-20
CA2140573C CA2140573C (en) 1998-12-22

Family

ID=4155075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002140573A Expired - Lifetime CA2140573C (en) 1995-01-19 1995-01-19 Drilling tool for metallic materials

Country Status (1)

Country Link
CA (1) CA2140573C (en)

Also Published As

Publication number Publication date
CA2140573C (en) 1998-12-22

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20150119