Hardinge Brothers, Inc.

Terrence M Sheehan

Daniel P Soroka

Raymond Charles Cady

Harold E Walburn

Gary L Comstock

James Paul Peris

Robert B Carlyle

Gregory Ayzenshtok

Glenn E Greenall

Jyoti Mukherjee

Jack F Sheehan

Babak Robert Raj

Ivan R Brown

Brian M Eaton

James S MacConkey

Jeffery W Thomason

Paul M Bjorck

Edmund J Britt, Ii

Ramesh M Kamath

Takahiro Matsubara

Robert D Allington

R Allington

J Allan Krul

Philip M Reavis, Jr

Jiaxuan Wen

Todd N Wetherill

A bar feed assembly for receiving and guiding a bar stock to be machined in a lathe, comprises a tubular member for rotatably receiving and guiding the bar stock to be machined and a member for advancing the bar stock through the tubular members. A plurality of stabilizing bodies are provided along said tubular member in spaced apart relation and each has a compliant surface disposed in surrounding relation to the tubular member in a manner which permits axial thermal growth of the tubular members through the stabilizing bodies.

Thermally compliant bar feeding machine

A gang tooling is disclosed for a lathe having a main spindle with an axis of rotation, a longitudinal carriage movable along a z-axis parallel to the spindle axis and a cross-slide carried by the longitudinal carriage and movable along a x-axis transverse to the spindle axis. The gang tooling comprises a longitudinal plate for removably securing to the cross-slide. The plate has a dovetail mortise and a wedge that cooperates with a dovetail tenon on the cross-slide for removably securing the plate to the cross-slide. The plate has a dovetail tenon for cooperating with a dovetail mortise in a plurality of tool holders for removably securing the tool holders to the plate. The plate can be removed from the cross-slide without disturbing and removing the tools installed on the plate, thereby permitting the tool holders to remain secured to the plate at their original relative positions.

Gang tooling for a computerized numerically controlled lathe

A machine tool comprises a frame; a work holder operably associated with the frame; at least one carriage disposed on the frame and movable along an axis; at least one tool disposed on the carriage for operating on a work piece disposed in the work holder; at least one nozzle assembly disposed on the carriage for directing at least one fluid stream to the work piece and the tool; a screw-nut drive operably associated with the carriage, the drive including a lead screw; a device for stretching the lead screw for compensating for thermal growth of the screw during operation; and a resilient strip operably disposed between the frame and the carriage for absorbing impact forces.

Temperature compensated and shock resistant machine tool

A process for replicating a surface on a machine base support surface relative to a reference surface, comprising the steps of providing a reference surface on the machine base; providing a fixture having a surface; positioning the fixture surface over the support surface to a predetermined position in close proximity to the support surface so that a gap is maintained between the fixture surface and the support surface; adjusting the fixture surface relative to the reference surface such that the fixture surface is precisely parallel with the reference surface; filling the space between the fixture surface and the support surface with flowable hardenable substance; permitting the substance to cure; removing the fixture.

Machine tool assembly having replicated support surfaces

A machine tool having a quick release draw tube includes a headstock with a spindle. A draw tube is slidably supported within the spindle and includes inner and outer surfaces. The draw tube includes a series of circumferentially spaced holes on the outer surface thereof. A draw tube locking or unlocking device cooperates with the spindle and includes a ball detent that is selectively received in one of the recesses provided on the draw tube for locking the same within the spindle. The machine tool also includes an adapter plate for mounting over the extended nose of the spindle for substituting a collet by a jaw chuck.

Machine tool having a quick release draw tube and jaw chuck adapter

In summary, therefore, this invention is directed to a thermal growth detector and compensator for detecting and compensating for relative movement between a work holder of a machine tool and a tool holder, that includes an elongated rod made of a material having a coefficient of thermal expansion of substantially zero that is attached at one end thereof to a part of a machine tool, and is attached at another end thereof to a part of a work holder on the machine tool. There is an element disposed at one end of the elongated rod for detecting movement of the rod, and an automatic compensation means is operatively connected to the movement detection element for automatically moving a tool holder relative to the work holder as a function of the movement of the rod detected by the movement detection element to compensate for movement of the work holder relative to the machine tool, whereby any movement of the work holder relative to the tool holder is detected and compensated for by moving the tool holder to compensate for movement of the work holder relative to another part of the machine tool.

Method and apparatus for detecting and compensating thermal growth in

A machine tool comprises a base, a spindle operably associated with the base, a work holder operably associated with the spindle for securing a workpiece to the spindle, and a tailstock operably secured to the base. The tailstock includes a slideway and a tailstock body slidably secured to the slideway. The tailstock body is movable on the slideway between a home position away from the workpiece and a work engaging position. A limit switch and trip members associated with the tailstock, and a hydrulic circuit are provided for controlling the movement of the tailstock body from the home position to an intermediate position prior to the work engaging position at an initial feed rate and from the intermediate position to the work engaging position at a subsequent feed rate where the initial feed rate is greater than the subsequent feed rate.

Machine tool tailstock

Chucker and bar machine

A headstock cooling system for a machine tool comprising a base having a top, bottom and a first fluid passageway extending centrally therethrough from the top to the bottom. A bed is mounted on the base top and provided with a second fluid passageway extending coaxially from the first fluid passageway and in fluid communication therewith. A headstock is mounted on the bed and is positioned coaxial with and directly above the second fluid passageway and includes means for communication with the second fluid passageway for directing a cooling fluid from the second fluid passageway out of the headstock thereby cooling the headstock over at least a substantial portion of the headstock.

Headstock cooling system for a machine tool

A coolant supply system for a machine tool comprises a coolant source; a nozzle for directing coolant to inside of a workpiece from the coolant source; another nozzle for directing coolant to outside of the workpiece from the coolant source; and a valve for automatically selectively directing coolant only to the inside of the workpiece, thereby increasing coolant flow to the inside of the workpiece when needed.

Coolant supply system for a machine tool

A finished parts catcher for an automatic machine having a workholder and a part cut-off means comprising a finished part receptacle or chute positioned beneath the workholder; piston and cylinder means for imparted movement to the receptacle, the piston and cylinder means has first and second ends; the receptacle being positioned from the first end of the piston and cylinder means; at least one connecting rod extends between and is attached to the receptacle and the second end of the piston and cylinder means; means for limiting travel of the connecting rod and a control means to actuate the piston and cylinder means thereby simultaneously moving the connecting rod and causing the receptacle to move to a position beneath the workholder prior to release of the finished part so as to catch the finished part when released from the workholder. The caught finished part is directed to a parts basket from which it can be easily removed while the automatic machine is cycling.

Finished parts catcher for an automatic machine

A chip flushing apparatus for connection to a machine tool for flushing chips of debris from cutting operations performed by the machine tool. The flushing apparatus includes a header bar having outlet means for dispensing fluid to a chip receiving area of the machine tool for transporting the chips to a recovery box. A fluid flow deflector is positioned near the outlets of the header to deflect the fluid streams into a laminar flow across the fluid receiving area. A removable tank is mounted below the receiving area to receive the flushing fluid. The tank is wheeled for convenient transport.

Bed cooler and chip flusher for a machine tool

Combined chucker and bar machine

A bed for a machine tool comprising a bottom, sides, a front, a rear and top with the bottom having a three point suspension and the top having a substantial portion inclined at between 55.degree. and 65.degree. from the horizontal and including a pair of spaced cavities within the bed which are ribbed and provide dual torque tube reinforcement.

Growing community of inventors

Elmira, NY, United States of America

Terrence M Sheehan