[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

WO2001036135A1 - Insert drill with replaceable end cap - Google Patents

Insert drill with replaceable end cap Download PDF

Info

Publication number
WO2001036135A1
WO2001036135A1 PCT/US2000/041702 US0041702W WO0136135A1 WO 2001036135 A1 WO2001036135 A1 WO 2001036135A1 US 0041702 W US0041702 W US 0041702W WO 0136135 A1 WO0136135 A1 WO 0136135A1
Authority
WO
WIPO (PCT)
Prior art keywords
end cap
tool body
drill
gullet
insert
Prior art date
Application number
PCT/US2000/041702
Other languages
French (fr)
Inventor
William Bennett Johnson
Original Assignee
Ingersoll Cutting Tool Company
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 Ingersoll Cutting Tool Company filed Critical Ingersoll Cutting Tool Company
Priority to BR0015308-7A priority Critical patent/BR0015308A/en
Priority to AU27488/01A priority patent/AU2748801A/en
Priority to EP00990462A priority patent/EP1233839A1/en
Priority to CA002388831A priority patent/CA2388831A1/en
Priority to JP2001538112A priority patent/JP2003513809A/en
Publication of WO2001036135A1 publication Critical patent/WO2001036135A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/02Twist drills
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B51/00Tools for drilling machines
    • B23B51/04Drills for trepanning
    • B23B51/0486Drills for trepanning with lubricating or cooling equipment
    • B23B51/0493Drills for trepanning with lubricating or cooling equipment with exchangeable cutting inserts, e.g. able to be clamped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B2251/00Details of tools for drilling machines
    • B23B2251/02Connections between shanks and removable cutting heads

Definitions

  • Replaceable end caps have heretofore been used on end mills in severe service and typically have contemplated a cylindrical plug-and- socket coupling between the end cap and the body of the tool with multiple drive pins anchored in the tool body and received in holes in the end cap, an assembly maintained by a central cap screw threaded into the tool body through a counter-bored hole in the end cap.
  • the residual end cap material between successive chip gullets is likewise disposed as diametrically opposed material masses which offer themselves as the only available attachment sites for coupling the end cap with the tool body.
  • Each pin has two axially spaced radial depressions in its surface, which are conical in form and disposed on the same side of the pin in the same axial plane thereof. The depressions are engageable by conical-nose set screws disposed perpendicular to the plane of the radius on which the holes of the end cap and drill body, respectively, are aligned.
  • the set screws of the end cap and of the drill body enter their respective host bodies from opposite directions in the same plane perpendicular to the rotational axis, while the set screws engaged with each pin are disposed in the same plane parallel to the rotational axis and spaced axially therein from the contact interface an aggregate distance slightly greater than the axial spacing of the depressions in the pins. Tightening the set screws into their respective pin depressions locks the end cap against rotation relative to the drill body and intensifies the interface contact force.
  • FIGURE 1 is a perspective view of an indexable insert drill with replaceable end cap in accordance with the invention
  • FIGURE 2 is an exploded perspective view of the drill of FIG. 1;
  • FIGURE 3 is a side elevation of the drill
  • FIGURE 4 is a plan view of the drill as shown in FIG. 3
  • FIGURE 5 is an end view, somewhat enlarged, of the drill as shown in FIG. 4
  • FIGURE 6 is a rear elevation of the end cap with connecting pins in place therein;
  • FIGURE 7 is a front elevation of the drill body absent the end cap
  • FIGURE 8 is a plan view of one of the two connecting pins used.
  • FIGURE 9 is an end view of the pin of FIG. 8, partially broken away to show one of the set-screw receiving depressions of the pin.
  • the drill shown in the drawing FIG. 1 is a fairly large drill 10 with a cutting diameter slightly in excess of three inches, an overall length of approximately fourteen and a half inches and an unsupported length of slightly over ten and a half inches when mounted in a machine spindle, not shown.
  • the mounting end of the cylindrical drill body 12 is machined to provide an integral taper 14 and combination gripping and drive flange 16 with peripheral groove 18 for handling by an automatic tool changer and diametrically opposed notches 20 to receive the driving bar keys on the face of the spindle.
  • the threaded end portion 22 (FIGS. 3 and 4) of a central bore 24 of the drill receives the usual gripper knob, also not shown, by means of which the tool is drawn tightly into the receiving taper of the spindle.
  • the central bore 24 extends throughout the drill body proper, and is extended into, and ends, in the end cap 26 at the free end of the tool. There it is joined by two lesser angular bores 28 which deliver to the cutting sites the cutting fluid introduced into the central bore through the machine spindle, and a central bore in the gripper knob.
  • the drill body 12 and end cap 26 are milled to provide a pair of diametrically opposed chip gullets 30 and 32 extending axially from the cutting face of the end cap 26 along the sides of the drill body 12.
  • each chip gullet is further milled to provide seats for indexable inserts 34, 36, 38, and 40, illustrated as four-edged square inserts of which two occupy each gullet.
  • the cutting edges of all of the inserts are arrayed in a convex curve in the same diametrical plane, being staggered in radial displacement from the center of rotation so that the insert 36 of the gullet 32 cuts to the center as insert 40 of the opposing gullet 30 cuts to the periphery, the inserts collectively sweeping a continuous cutting path from the center of rotation to the periphery.
  • a further insert 42 positioned in the chip gullet 30 of the tool body at a point removed from the end cap 26, is provided to take a boring finish cut in the hole formed by the through passage of the hole-opening inserts 34 to 40 of the end cap.
  • the drill body 12 and its end cap 26 meet at a planar interface 44 perpendicular to the rotational axis of the tool.
  • the removal of material from both constituent parts of the tool to create the chip gullets 30 and 32 leaves the residual material in a configuration which, at their interface 44, resemble a bow tie (FIGS. 2 and 6), i.e., two diametrically opposed masses 46 and 48 of the end cap and their mirror-image counterparts 46' and 48' of the drill body 12, the masses of both constituent parts of the drill being rather more narrowly connected at the center of rotation.
  • Each of the masses of the end cap is drilled and milled in a smooth-bore hole 50 and 52 parallel to the rotational axis and in precise alignment with a like hole 50' and 52' in the drill body (FIGS. 6 and 7).
  • the two holes of each constituent part are somewhat offset from precise diametrical alignment, as their opposed masses are slightly unequal in size owing to the larger cross-section of the chip gullet 32 of the insert 36 that is required to cut to center.
  • Optimal placement of the holes in the opposed masses on opposite sides of center which is to say, at the approximate centroid of each mass, and with centers at the same radius from center of rotation, results in a slight angular displacement of each from diametrical alignment with the other.
  • the holes in the end cap and drill body are aligned as pairs each of which receives a cylindrical connecting pin 54 of chrome steel alloy finish ground to an outside diameter providing four to six thousandths clearance on a three-quarter inch diameter.
  • the length of the pin is approximately one-tenth of an inch less than the combined depths of each pair of aligned holes 50-50' and 52-52' of the drill body and end cap.
  • Each of the connecting pins 54 is provided with a pair of axially aligned and countersunk radial holes 56 on centers spaced a predetermined distance apart and at predetermined distances from each end of the pin.
  • the holes 56 of the pins are disposed to permit each to receive a conical-nose, headless set screw 58 with drive socket 60 positioned in each of the end cap 26 and drill body 12 (FIG. 2).
  • the set screws of drill body and end cap engageable with each pin are likewise in alignment with each other axially of the tool, with their center lines parallel to the interface 44 between their constituent bodies and perpendicular to a radius from the center of the pin to the center of rotation.
  • the predetermined distance of the two set-screw receiving holes 56 of the connecting pins is less than the distance between the two set screws 58 engageable therewith when the end cap 26 and drill body 12 are in contact at their interface 44, the set screw placements, for convenience of manufacture, being equidistant from that interface.
  • the spacing of the holes 56 of the pins 54 and of the set screws 58 engageable therewith is preferably such as to provide a maximum available draw "D" (FIG. 8) of approxi- mately twenty-five thousandths inches.
  • the connecting pins 54 will first be secured in the drill body 12, and the set screws 58 thereof firmly engaged in the associated holes 56 in the pins 54, the depth of the pin-receiving holes 50' and 52' of the drill body 12 is some twenty-five thousandths greater than required to align the set screws thereof in the associated holes of the pins.
  • the pin receiving holes 50 and 52 of the end cap 26 are deeper by fifty thousandths than the exposed lengths of the pins when seated in the tool body in order to allow for the unrestricted draw of the end cap into tight engagement with the drill at their interface without bottoming the pin 54 in the hole 50 or 52 of the end cap.

Landscapes

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

Abstract

The insert drill (10) disclosed comprises a drill body (12) proper in which the entering hole-forming inserts (34, 36, 38, 40) are mounted in a removable and replaceable end cap (26) to facilitate restoration of the drill (10). The attachment of the end cap (26) to the drill body (12) is made by two sizable pins (54) received in aligned holes (50, 50', 52, 52') in the end cap (26) and drill body (12) and secured therein by set screws (58) engageable with holes (56) in the pins (54).

Description

INSERT DRILL WITH REPLACEABLE END CAP
In certain heavy-duty drilling operations, particularly of the automated kind, the dulling of the inserts at the entering end of the tool may go unnoticed for a sufficient length of time to effectively destroy the end of the tool as a result of excessive heating. For such applications, it would be desirable to make insert drills available with replaceable end caps in order to avoid the expense entailed in the loss of the entire tool, particularly in larger diameter drills. Replaceable end caps have heretofore been used on end mills in severe service and typically have contemplated a cylindrical plug-and- socket coupling between the end cap and the body of the tool with multiple drive pins anchored in the tool body and received in holes in the end cap, an assembly maintained by a central cap screw threaded into the tool body through a counter-bored hole in the end cap.
Such arrangements do not lend themselves to drills, which are required to cut to the center of rotation and from which substantial amounts of the tool material must be removed from the end cap to provide the chip gullets necessary to allow the chips removed from the workpiece to be lifted or flushed from the hole.
In a typical drill with diametrically aligned cutting inserts on opposite sides of center, the residual end cap material between successive chip gullets is likewise disposed as diametrically opposed material masses which offer themselves as the only available attachment sites for coupling the end cap with the tool body.
It is the object of this invention to utilize those sites, together with coupling drive pins, to secure the end cap of the drill to the drill body against axial or rotational dislodgement by readily made connections which themselves are protected from the damage to which the end cap is exposed.
SUMMARY OF THE INVENTION Axially alignable holes bored into the diametrically opposed masses of the end cap and into the drill body, respectively, parallel to the axis of rotation, each receive one end of a pin which spans the axially perpendicular contact interface of the two members. Each pin has two axially spaced radial depressions in its surface, which are conical in form and disposed on the same side of the pin in the same axial plane thereof. The depressions are engageable by conical-nose set screws disposed perpendicular to the plane of the radius on which the holes of the end cap and drill body, respectively, are aligned. The set screws of the end cap and of the drill body, respectively, enter their respective host bodies from opposite directions in the same plane perpendicular to the rotational axis, while the set screws engaged with each pin are disposed in the same plane parallel to the rotational axis and spaced axially therein from the contact interface an aggregate distance slightly greater than the axial spacing of the depressions in the pins. Tightening the set screws into their respective pin depressions locks the end cap against rotation relative to the drill body and intensifies the interface contact force.
DESCRIPTION OF THE DRAWINGS FIGURE 1 is a perspective view of an indexable insert drill with replaceable end cap in accordance with the invention;
FIGURE 2 is an exploded perspective view of the drill of FIG. 1;
FIGURE 3 is a side elevation of the drill; FIGURE 4 is a plan view of the drill as shown in FIG. 3; FIGURE 5 is an end view, somewhat enlarged, of the drill as shown in FIG. 4; FIGURE 6 is a rear elevation of the end cap with connecting pins in place therein;
FIGURE 7 is a front elevation of the drill body absent the end cap;
FIGURE 8 is a plan view of one of the two connecting pins used; and
FIGURE 9 is an end view of the pin of FIG. 8, partially broken away to show one of the set-screw receiving depressions of the pin. DESCRIPTION OF PREFERRED EMBODIMENT The drill shown in the drawing FIG. 1 is a fairly large drill 10 with a cutting diameter slightly in excess of three inches, an overall length of approximately fourteen and a half inches and an unsupported length of slightly over ten and a half inches when mounted in a machine spindle, not shown. As illustrated, the mounting end of the cylindrical drill body 12 is machined to provide an integral taper 14 and combination gripping and drive flange 16 with peripheral groove 18 for handling by an automatic tool changer and diametrically opposed notches 20 to receive the driving bar keys on the face of the spindle. The threaded end portion 22 (FIGS. 3 and 4) of a central bore 24 of the drill receives the usual gripper knob, also not shown, by means of which the tool is drawn tightly into the receiving taper of the spindle.
The central bore 24 extends throughout the drill body proper, and is extended into, and ends, in the end cap 26 at the free end of the tool. There it is joined by two lesser angular bores 28 which deliver to the cutting sites the cutting fluid introduced into the central bore through the machine spindle, and a central bore in the gripper knob.
In the illustrated embodiment the drill body 12 and end cap 26 are milled to provide a pair of diametrically opposed chip gullets 30 and 32 extending axially from the cutting face of the end cap 26 along the sides of the drill body 12. At the cutting face of the end cap each chip gullet is further milled to provide seats for indexable inserts 34, 36, 38, and 40, illustrated as four-edged square inserts of which two occupy each gullet. The cutting edges of all of the inserts are arrayed in a convex curve in the same diametrical plane, being staggered in radial displacement from the center of rotation so that the insert 36 of the gullet 32 cuts to the center as insert 40 of the opposing gullet 30 cuts to the periphery, the inserts collectively sweeping a continuous cutting path from the center of rotation to the periphery.
In the illustrated embodiment, a further insert 42, positioned in the chip gullet 30 of the tool body at a point removed from the end cap 26, is provided to take a boring finish cut in the hole formed by the through passage of the hole-opening inserts 34 to 40 of the end cap. The drill body 12 and its end cap 26 meet at a planar interface 44 perpendicular to the rotational axis of the tool. The removal of material from both constituent parts of the tool to create the chip gullets 30 and 32 leaves the residual material in a configuration which, at their interface 44, resemble a bow tie (FIGS. 2 and 6), i.e., two diametrically opposed masses 46 and 48 of the end cap and their mirror-image counterparts 46' and 48' of the drill body 12, the masses of both constituent parts of the drill being rather more narrowly connected at the center of rotation.
Each of the masses of the end cap is drilled and milled in a smooth-bore hole 50 and 52 parallel to the rotational axis and in precise alignment with a like hole 50' and 52' in the drill body (FIGS. 6 and 7). The two holes of each constituent part are somewhat offset from precise diametrical alignment, as their opposed masses are slightly unequal in size owing to the larger cross-section of the chip gullet 32 of the insert 36 that is required to cut to center. Optimal placement of the holes in the opposed masses on opposite sides of center, which is to say, at the approximate centroid of each mass, and with centers at the same radius from center of rotation, results in a slight angular displacement of each from diametrical alignment with the other. The holes in the end cap and drill body are aligned as pairs each of which receives a cylindrical connecting pin 54 of chrome steel alloy finish ground to an outside diameter providing four to six thousandths clearance on a three-quarter inch diameter. The length of the pin is approximately one-tenth of an inch less than the combined depths of each pair of aligned holes 50-50' and 52-52' of the drill body and end cap.
Each of the connecting pins 54 is provided with a pair of axially aligned and countersunk radial holes 56 on centers spaced a predetermined distance apart and at predetermined distances from each end of the pin. The holes 56 of the pins are disposed to permit each to receive a conical-nose, headless set screw 58 with drive socket 60 positioned in each of the end cap 26 and drill body 12 (FIG. 2). The set screws of drill body and end cap engageable with each pin are likewise in alignment with each other axially of the tool, with their center lines parallel to the interface 44 between their constituent bodies and perpendicular to a radius from the center of the pin to the center of rotation.
The predetermined distance of the two set-screw receiving holes 56 of the connecting pins is less than the distance between the two set screws 58 engageable therewith when the end cap 26 and drill body 12 are in contact at their interface 44, the set screw placements, for convenience of manufacture, being equidistant from that interface. The spacing of the holes 56 of the pins 54 and of the set screws 58 engageable therewith is preferably such as to provide a maximum available draw "D" (FIG. 8) of approxi- mately twenty-five thousandths inches. This is more than sufficient to maintain the end cap 26 in solid contact with the drill body 12 at their interface 44, a contact maintained by the resilient distortion of the set screws after the thread clearances are taken up, and the conical noses of the set screws become tightly engaged with the countersunk surfaces of the holes 56 in the pins.
As it is contemplated that the connecting pins 54 will first be secured in the drill body 12, and the set screws 58 thereof firmly engaged in the associated holes 56 in the pins 54, the depth of the pin-receiving holes 50' and 52' of the drill body 12 is some twenty-five thousandths greater than required to align the set screws thereof in the associated holes of the pins. The pin receiving holes 50 and 52 of the end cap 26 are deeper by fifty thousandths than the exposed lengths of the pins when seated in the tool body in order to allow for the unrestricted draw of the end cap into tight engagement with the drill at their interface without bottoming the pin 54 in the hole 50 or 52 of the end cap.
With the set screws tightly engaged from opposite directions with their respective connecting pins, the clearances of the pins in their respective holes in both bodies is taken up, and the end cap 26 thereby secured against rotation relative to the drill body 12 under the heavy torque experienced in a drill of the indicated size. The differential spacing of the conical set screws 58 and their associated countersunk holes 56 in the connecting pins serving at the same time to draw the end cap and drill body tightly together at their interface 44 so as to constitute them the equivalent of a unitary drill tool. The features of the invention believed new and patentable are set forth in the appended claims.

Claims

What is claimed is:
1. An insert drill with replaceable end cap comprising: a generally cylindrical tool body having one end thereof adapted for driving rotation on the cylindrical axis by a machine tool spindle and the opposite end adapted for coupling in driving relation with a removable end cap; a removable end cap in facing contact with said opposite end of the tool body on a plane perpendicular to the cylindrical axis thereof; said end cap and tool body being formed to provide multiple chip gullets in extension of each other; each chip gullet of the end cap being formed to receive at least one replaceable cutting insert positioned radially thereof to share a radially continuous collective cutting path from the center of rotation to its periphery with the at least one insert of each other end-cap gullet; said tool body having protruding axially therefrom at said plane of contact multiple drive pins of like number as said chip gullets received in holes formed in said end cap body parallel to and displaced radially from the axis of rotation and positioned rotationally between successive chip gullets thereof; and set screws in said end cap each positioned therein for locking engagement with one of said drive pins of the tool body to secure the end cap in facing contact with said tool body and rotationally immobile with respect thereto.
2. The insert drill of claim 1 wherein the chip gullets of said end cap and tool body are two in number, and the cutting inserts are at least two in number per gullet aligned diametrically with those of the other gullet and spaced from each other in radially staggered relation to those of the other gullet so as collectively to sweep said radially continuous cutting path.
3. The insert drill of claim 1 or 2 wherein the drive pins protruding from said tool body are likewise each seated in a conforming hole in the tool body axially perpendicular to said plane of contact and secured therein by a set screw in the tool body engaged therewith , the set screws of end cap and tool body, respectively, engaged with a given drive pin being disposed in the same plane and accessible from the exteriors of said bodies, and each having at its engaging ends a conical camming surface engageable with a like hole in the surface of its associated pin to urge the pin more deeply into the associated holes in the two bodies, thereby to pressurize the facial contact between the two bodies when the set screws are tightened, and to secure the two bodies against relative rotation.
4. The insert drill of claim 3 wherein the depressions of a given drive pin are spaced more closely than its associated set screws of the end cap and the tool body.
PCT/US2000/041702 1999-11-04 2000-10-30 Insert drill with replaceable end cap WO2001036135A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BR0015308-7A BR0015308A (en) 1999-11-04 2000-10-30 Replaceable insert drill with extreme cap
AU27488/01A AU2748801A (en) 1999-11-04 2000-10-30 Insert drill with replaceable end cap
EP00990462A EP1233839A1 (en) 1999-11-04 2000-10-30 Insert drill with replaceable end cap
CA002388831A CA2388831A1 (en) 1999-11-04 2000-10-30 Insert drill with replaceable end cap
JP2001538112A JP2003513809A (en) 1999-11-04 2000-10-30 Insert drill with replaceable end cap

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16353599P 1999-11-04 1999-11-04
US60/163,535 1999-11-04

Publications (1)

Publication Number Publication Date
WO2001036135A1 true WO2001036135A1 (en) 2001-05-25

Family

ID=22590461

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/041702 WO2001036135A1 (en) 1999-11-04 2000-10-30 Insert drill with replaceable end cap

Country Status (7)

Country Link
EP (1) EP1233839A1 (en)
JP (1) JP2003513809A (en)
KR (1) KR20030067475A (en)
AU (1) AU2748801A (en)
BR (1) BR0015308A (en)
CA (1) CA2388831A1 (en)
WO (1) WO2001036135A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111666U1 (en) 2001-07-13 2001-11-29 Kemmer Hartmetallwerkzeuge GmbH, 72218 Wildberg Drilling or boring tool
WO2005102573A1 (en) * 2004-04-23 2005-11-03 Yestool Co., Ltd. Insert drill
US7083367B2 (en) * 2003-10-20 2006-08-01 Gene Delett Adaptor device for holding a blade

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684298A (en) * 1985-05-17 1987-08-04 Santrade Limited Drill
US4856944A (en) * 1987-03-26 1989-08-15 Gottlieb Guhring Kg Coupling between a tool head and a tool support
US4950108A (en) * 1988-06-23 1990-08-21 Sandvik Ab Drill comprising drill body and replaceable drill tip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684298A (en) * 1985-05-17 1987-08-04 Santrade Limited Drill
US4856944A (en) * 1987-03-26 1989-08-15 Gottlieb Guhring Kg Coupling between a tool head and a tool support
US4950108A (en) * 1988-06-23 1990-08-21 Sandvik Ab Drill comprising drill body and replaceable drill tip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20111666U1 (en) 2001-07-13 2001-11-29 Kemmer Hartmetallwerkzeuge GmbH, 72218 Wildberg Drilling or boring tool
US7083367B2 (en) * 2003-10-20 2006-08-01 Gene Delett Adaptor device for holding a blade
WO2005102573A1 (en) * 2004-04-23 2005-11-03 Yestool Co., Ltd. Insert drill

Also Published As

Publication number Publication date
EP1233839A1 (en) 2002-08-28
KR20030067475A (en) 2003-08-14
CA2388831A1 (en) 2001-05-25
JP2003513809A (en) 2003-04-15
AU2748801A (en) 2001-05-30
BR0015308A (en) 2002-07-09

Similar Documents

Publication Publication Date Title
EP1296791B1 (en) Rotatable tool having a replaceable tip at the chip removing free end of the tool
JP3299264B2 (en) Drilling tool
KR100522987B1 (en) Tool for cutting machining
US5800079A (en) Milling tool having insert-carrying cartridges secured by wedges
US7320566B2 (en) Cutting tool including detachable cutter head
JP2000504280A (en) Indexable insert router
EP0813927A2 (en) Round bar blade and cutter head provided especially for the same
EP2352611B1 (en) Milling cutter coupling system
US4768901A (en) Drill having two or more cutting edges comprising exchangeable cutting members
WO2008014367A1 (en) Cutting tool with replaceable tip
CA2374223C (en) Machining tool
US5863161A (en) Countersinking tool with removable cutting inserts
US6682271B2 (en) Milling tool and insert, particularly thread milling cutter
CA1135539A (en) Drill with replaceable inserts
JP4056020B2 (en) Throw-away end mill
WO2004002663A1 (en) Spur point drill insert
WO2001036135A1 (en) Insert drill with replaceable end cap
US3975031A (en) Tool mounting device
JP5061775B2 (en) Cutting tools
EP0248775B1 (en) Drill
DK171983B1 (en) Tools System
EP3782750A1 (en) Tool head, cutting tool and method of fixing a tool head to an adapter
JP2001138119A (en) Cutting tool and throwaway center drill
JPH0825126A (en) Throwaway type rotary cutting tool
WO1999046075A1 (en) Improved self-centering spade drill

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2388831

Country of ref document: CA

WWE Wipo information: entry into national phase

Ref document number: 10134987

Country of ref document: US

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2001 538112

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1020027005779

Country of ref document: KR

WWE Wipo information: entry into national phase

Ref document number: 2000990462

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 2000990462

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2000990462

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1020027005779

Country of ref document: KR