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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Erickson; Robert A.
Address:
Raleigh, NC
No. of patents:
55
Patents:


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Patent Number Title Of Patent Date Issued
D459741 Cutting blade July 2, 2002
8220804 Toolholder assembly with axial clamping mechanism July 17, 2012
An apparatus for releasably holding a tubular toolholder shank by axially reciprocating a lock rod between a locked and unlocked position. Compression balls following a helical path on a torque nut are used to retract a compression sleeve, which in turn compresses springs against the
7832967 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchange November 16, 2010
A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing
7669308 Method of assembling a collet and lock nut assembly March 2, 2010
An collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plurality of retention
7610834 Tool holder assembly with interference fit key arrangement November 3, 2009
A tool holder assembly includes a tool holder with a shank and a key slot having a surface with an angled portion that forms a non-zero angle with respect to a longitudinal axis of the tool holder assembly. A clamping mechanism includes a support block, a ball canister including a key, a
7431539 Clamp pin tool holder October 7, 2008
A clamp pin tool holder for clamping an insert in a tool holder includes a bore for receiving a clamp pin and a bore for receiving a lock screw. The clamp pin includes a cam portion with angled surfaces. The lock screw is rotatably mounted to the bore of the tool holder and includes angl
7360974 Rotary cutting tool, such as a drill, comprising an exchangeable cutting insert, and an exchange April 22, 2008
A rotary cutting tool that is composed of a tool shank with at least one chucking groove or chip flute and one exchangeable cutting insert. At the tip of the shank a recess for accommodating the cutting insert is provided. The tool shank, on its circumference, has a limb with a bearing
7357608 Rotary tapered tool holder April 15, 2008
A rotary tapered tool holder includes a shank including a front mounting portion and an aperture. An expansion sleeve is disposed about a portion of the shank. The expansion sleeve includes a front mounting portion adjacent the front mounting portion of the shank. An expansion rod is
7338419 Tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, an March 4, 2008
A tool coupler for connecting tool heads, such as drills, reamers, millers, turn-cutters, dies, and rams, to a tool holder. The tool coupler has a hollow shaft, a ring-shaped collar, and a gripper groove, in which gripper groove are disposed two diametrically opposite blind bore holes
7311478 Toolholder December 25, 2007
A tool holder (20) comprises a body portion (32), a support member assembly (33) mounted to the body portion and an insert-receiving cartridge (36) removably received in the support member. The insert-receiving cartridge (36) includes a pocket (38) for mounting a cutting insert (40)
7306238 Collet and lock nut December 11, 2007
An assembly generally comprises a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the cutting tool shank. The collet has a nose and the lock nut has a front face that is substantially flush with the nose. The lock nut furt
7287941 Apparatus for amplifying the pull back force on a lock rod used to secure a toolholder October 30, 2007
An apparatus for pneumatically amplifying the force acting upon a lock rod to retain a toolholder within a toolholder receiving member has a spindle extending from the toolholder receiving member and at least two in-line dual acting piston/cylinder modules within a cavity within the bore
7261302 Collet and lock nut assembly August 28, 2007
A collet and lock nut assembly includes a collet for receiving a cutting tool shank and a lock nut for creating a gripping force between the collet and the shank. The collet has a nose portion and a body portion separated by an annular groove. The lock nut has a plurality of retention
7240594 Toolholder assembly July 10, 2007
An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut is drawn onto the bol
7186064 Rotary tapered tool holder with adapter sleeve March 6, 2007
A rotary tapered tool holder includes a body or shank including a front contact portion and a rear contact portion. An adapter sleeve is disposed about a portion of the shank. The adapter sleeve includes slits that allow radial expansion and contraction of the adapter sleeve. The adapter
7144210 Tool holder December 5, 2006
A rotary tool holder includes a shank having a flange, a tapered outer surface, and front and rear contact portions. The tapered outer surface corresponds to the tapered bore of a spindle, and flexible circular cantilevers are provided at one or both contact portions such that a free
7089838 Zero centerline toolholder assembly August 15, 2006
A zero centerline toolholder assembly includes a cutting insert mounted to a toolholder. The center, RC, of the nose radius of the cutting insert is aligned with or lies on a centerline, LT, of the toolholder. The centerline, LT, of the toolholder may be also aligned with a rotational
7001115 Cutting insert and toolholder for holding the same February 21, 2006
A cutting insert for metalworking operations has an insert core with a pair of cutting portions having cutting tips extending therefrom such that a toolholder having a pocket to accept such a core is suitable to accept different cutting inserts having a common core plus different cut
6966728 Toolholder assembly November 22, 2005
A toolholder assembly for releasably holding a toolholder at a selected radial location within the toolholder assembly. The toolholder assembly includes a tool support member, an actuating bolt and an actuating centering nut. Rotation of the actuating bolt in a locking direction cent
6913427 Adjustment device for self-colleting drill motors July 5, 2005
An adjustment device comprises a first portion and a second portion. The first and second portions are adjustably engaging one another. The adjustment device has an overall length that is adapted to be adjusted by adjusting the first and second portions relative to one another. The o
6786119 Toolholder assembly September 7, 2004
An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut is drawn onto the bol
6773210 Clamp pin tool holder August 10, 2004
An apparatus and method for clamping an insert in a tool holder includes a recess and a clamp pin with a lever portion having a curved surface at each end thereof. The recess includes an angled wall for engaging one of the curved surfaces of the lever portion. A wedge portion is disposed
6632050 Face hobbing cutter October 14, 2003
A face hobbing cutter including a cutter body having a top surface and a bottom surface and a side surface extending between the top surface and the bottom surface. A plurality of slots are formed within the cutter body extending from the top surface inward into the cutter body. The slot
6619897 Error proofing method and apparatus for cutting tools September 16, 2003
An apparatus and method for aligning a clamping unit and a toolholder to facilitate proper positioning of a cutting tool with respect to a workpiece.
6579043 Multi-purpose insert and toolholder assembly June 17, 2003
A cutting insert has an insert body with at least one pair of cutting regions. Each cutting region is comprised of a cutting edge and the cutting edges in a pair are diametrically opposed to one another about a pair axis. Each cutting edge of a pair faces a single rotary direction al
6543318 Locking assembly April 8, 2003
A locking assembly for a toolholder to releasably secure the toolholder with a tool support member.
6506003 Cutting tool January 14, 2003
A separable rotary cutting tool is disclosed. The tool comprises a shank and a head. The shank has a receiver comprised of a shank guide at a trailing end of the receiver, opposing shank drive keys at a leading end of the receiver, and a shank locator located axially between the shank
6415696 Toolholder assembly July 9, 2002
An apparatus is disclosed for releasably holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt with an associated threaded actuating nut. When the actuating bolt is rotated in a locking direction, the actuating nut is drawn onto the bol
6270293 Toolholder assembly August 7, 2001
An apparatus is disclosed for releasable holding a toolholder shank having a lockable surface and a releasable surface utilizing an actuating bolt. The actuating bolt is reciprocally movable along an axis to engage one side of the shank for locking the toolholder within the support membe
6196094 Tool unit clamping apparatus having a locking mechanism with increased gripping force March 6, 2001
A clamping apparatus for detachably connecting a tool unit to a tool supporter with increased holding force is provided. The clamping apparatus includes a housing, a pair of opposing locking spheres within the housing, a cylindrical canister member mounted within the housing that is mata
6000885 Cutting insert suitable for mounting in different toolholder pockets and associated toolholder a December 14, 1999
A cutting insert for mounting on edge in the insert pocket of a toolholder. The cutting insert has a mounting surface parallel to the top surface of the insert and a second mounting surface angled relative to the top surface of the insert so that the insert may be mounted in a toolholder
6000306 Side activated tool unit clamping apparatus using mechanical advantage December 14, 1999
A side activated clamping mechanism is disclosed for detachably connecting a tool unit to a tool support housing. The tool unit has a shank with openings which are engaged by locking elements extending radially from apertures in a canister mounted within the tool support housing. Mec
5921724 Insert and toolholder for machining operations July 13, 1999
A cutting insert and toolholder for metalworking operations in which the insert is mechanically captured by a resilient clamping arm within a recess of the toolholder secured at three distinct locations. In one embodiment, a clamping arm resiliently secures the insert within the tool
5870935 Self-locking clamping apparatus for coupling a tool unit to a tool supporter February 16, 1999
A self-locking clamping apparatus is provided for coupling a tool unit to a tool supporter. The clamping apparatus includes a pair of locking spheres, a canister member that is matable with the tool unit and which includes a pair of opposing apertures for admitting the locking spheres, a
5851093 Coupling system for machine tools December 22, 1998
An improved coupling system for lockably coupling machine tool components is provided that includes a male coupling, a female coupling having an axis, a pair of opposing jaw members having lock surfaces for engaging ledge surfaces in the male coupling when the jaw members are moved apart
5829924 Cutting tool with insert clamping mechanism November 3, 1998
A cutting tool assembly (1) clamping mechanism (5) which secures a cutting insert (3) for performing cutoff, grooving, slotting, and profiling operations. The clamping mechanism (5) has resilient upper and lower clamping jaws (7, 9) for receiving and securing the insert (3). The cutt
5722806 System for coupling a toolholder utilizing a free floating wedging ball March 3, 1998
A coupling system is provided that includes a male coupling having a cylindrical distal end including a recess that includes follower surfaces, a female coupling having a cylindrical interior for receiving the distal end of the male coupling, and a pair of opposing jaw members movably
5694820 Tool unit clamping apparatus having improved short stroke locking mechanism December 9, 1997
A short-stroke clamping apparatus for detachably connecting a tool unit to a tool supporter is provided of the type having a canister member which includes apertures for admitting spherical locking elements, and a lock rod that is reciprocally movable a stroke distance along an axis and
5482417 Cam and wedge-type self-locking mechanism January 9, 1996
The present invention entails a self-locking mechanism (10) for locking a rotatable member such as a screw, bolt, lock rod, etc. In the case of a lock rod (50) that secures a tool holder (126) within a tool block (122), the self-locking mechanism (10) of the present invention includes at
5466102 System for coupling machine tools November 14, 1995
A coupling system (1) is provided for lockably coupling together machine tool components that comprises a male coupling (3) having a recess (19) at a distal end that includes follower surfaces (24), and female coupling (9) having an opening (31) disposed along its longitudinal axis for r
5452631 Apparatus for holding a toolholder shank utilizing a rotatable cam to minimize kickback September 26, 1995
An apparatus for releasably holding a tubular toolholder shank by axially reciprocating a lock rod between a locked and unlocked position. The lock rod is reciprocated using a rotatable cam. The rotatable cam activates a preloaded spring to generate a force securing the lock rod in the l
5415066 Apparatus for holding a toolholder shank May 16, 1995
An apparatus for releasably holding a tubular toolholder shank by axially reciprocating a lock rod between a locked and unlocked position. The lock rod is reciprocated using a rotatable cam. The cam compresses a spring thereby urging the lock rod in the locked position and positively
5261302 Quick-change tool holder with adjustment mechanism for repeatable center-height adjustment November 16, 1993
A quick-change tool holder includes locating means for repeatably locating a cutting unit at a predetermined angular position with respect to a support member. The support member includes an axial bore for receiving a tubular shank on the cutting unit. The tubular shank of the cutting un
5245896 Quick-change tool holder with center height adjustment mechanism September 21, 1993
A quick-change tool holder includes a center-height adjustment mechanism for adjusting the center height of the cutting tool. The quick-change tool holder includes a tool support member which is adapted to be mounted on a lathe turret or mounting block of a machine, a cutting head formed
5173017 Apparatus to adapt a toolholder for mounting to a base member December 22, 1992
An apparatus for adapting toolholders (10) which are specifically designed for use with machine tools having quick change tooling systems so that such toolholders may be used with machine tools not equipped with such systems. The apparatus secures to the toolholder shank (45) and provide
5169270 Compressible screw-type locking mechanism December 8, 1992
The present invention relates to a compressible screw-type locking mechanism including an oversized locking screw and a tool for compressing and rotatively driving the oversized locking screw through a threaded bore. Formed about the top of the locking screw is a head portion and ext
5054344 Quick change clamping mechanism October 8, 1991
A clamping assembly for releasably holding a tool holder having a shank includes a tool support member having a bore extending along a longitudinal axis. A locking mechanism is disposed in the axial bore for securing the tool holder to the support member. The locking mechanism includ
4932295 Automatic clamping unit for receiving and holding a tool holder June 12, 1990
The present invention relates to an automatic clamping unit of the type having a spring loaded lock rod that is movable between an unlocked and locked position. A pair of locking balls are confined about the locking rod and are operative to move outwardly for engagement with the shank of
4836068 Lock rod and apparatus for holding a toolholder June 6, 1989
A lock rod is provided extending along and reciprocally movable along an axis Y-Y and having a cylindrical cross section near one end. Two circumferentially spaced depressions are located in the cylindrical surface for receiving locking elements in an unlocked position. Extending fro
4747735 Toolholder and method of releasably mounting May 31, 1988
The present invention relates to an improved toolholder for releasably mounting on a tool support member. The toolholder is provided with a forward end for receiving a tool and a shank extending from the forward end for being releasably received in a bore of a tool support member. The
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