GB2294226A - Radial force compensation in 2-axis machine tool - Google Patents

Radial force compensation in 2-axis machine tool

Info

Publication number
GB2294226A
GB2294226A GB9600329A GB9600329A GB2294226A GB 2294226 A GB2294226 A GB 2294226A GB 9600329 A GB9600329 A GB 9600329A GB 9600329 A GB9600329 A GB 9600329A GB 2294226 A GB2294226 A GB 2294226A
Authority
GB
United Kingdom
Prior art keywords
workpiece
probe
headstock
worktable
tailstock
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
GB9600329A
Other versions
GB9600329D0 (en
GB2294226B (en
Inventor
Christopher David Bartlett
Michael Laycock
Peter Brian Leadbeater
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.)
Intermec Europe Ltd
Original Assignee
Western Atlas UK Ltd
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
Priority claimed from GB939315843A external-priority patent/GB9315843D0/en
Application filed by Western Atlas UK Ltd filed Critical Western Atlas UK Ltd
Priority to GB9600329A priority Critical patent/GB2294226B/en
Publication of GB9600329D0 publication Critical patent/GB9600329D0/en
Publication of GB2294226A publication Critical patent/GB2294226A/en
Application granted granted Critical
Publication of GB2294226B publication Critical patent/GB2294226B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/22—Equipment for exact control of the position of the grinding tool or work at the start of the grinding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q23/00—Arrangements for compensating for irregularities or wear, e.g. of ways, of setting mechanisms
    • 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
    • B24B49/02—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
    • 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • 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
    • B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

A machine tool, typically a CNC cylindrical grinding machine comprising a bed; a worktable movable relative to the bed along a linear path; a tool head such as a wheelhead movable in a direction generally perpendicular to the direction of worktable travel with a rotatable grinding wheel mounted thereon for engaging a workpiece mounted on the worktable; headstock and tailstock means carried by the worktable for supporting the workpiece at its opposite ends; drive means associated with the headstock and tailstock means for rotating the workpiece, and a worksteady mounted so as to oppose workpiece deflection due to contact between the tool and the workpiece, the worksteady comprising a stationary part and a probe movable relative thereto, to engage the workpiece. Drive means is provided for moving the probe relative to the stationary part of the worksteady towards and away from the workpiece. Control means serves to control the probe drive means. Transducer means associated with bearings in the headstock and tailstock generate signals indicative of any net force acting on each bearing both in magnitude and direction; and circuit means supply electrical signals derived from the transducer signals and indicative of the net forces or the resultant thereof, to the said control system. The latter is programmed so as to generate control signals for the probe drive to extend or retract the probe and thereby adjust the force exerted by the probe on the workpiece, so as to at least in part cancel the net force exerted by the workpiece respectively on the headstock and tailstock bearings.
GB9600329A 1993-07-30 1994-08-01 Radial force compensation in 2-axis machine tool Expired - Fee Related GB2294226B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9600329A GB2294226B (en) 1993-07-30 1994-08-01 Radial force compensation in 2-axis machine tool

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939315843A GB9315843D0 (en) 1993-07-30 1993-07-30 Improved machine tool
PCT/GB1994/001666 WO1995003920A1 (en) 1993-07-30 1994-08-01 Radial force compensation in 2-axis machine tool
GB9600329A GB2294226B (en) 1993-07-30 1994-08-01 Radial force compensation in 2-axis machine tool

Publications (3)

Publication Number Publication Date
GB9600329D0 GB9600329D0 (en) 1996-03-13
GB2294226A true GB2294226A (en) 1996-04-24
GB2294226B GB2294226B (en) 1997-04-09

Family

ID=26303309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9600329A Expired - Fee Related GB2294226B (en) 1993-07-30 1994-08-01 Radial force compensation in 2-axis machine tool

Country Status (1)

Country Link
GB (1) GB2294226B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148548A1 (en) * 1981-12-08 1983-07-07 Escher Wyss AG, Zürich Grinding attachment for grinding the circumferential surface of a roll
GB2143756A (en) * 1983-07-25 1985-02-20 Citizen Watch Co Ltd Grinding machine
US4602459A (en) * 1985-02-15 1986-07-29 Mar Engineering, Inc. System for active error compensation during machining
EP0211539A2 (en) * 1985-07-29 1987-02-25 Energy-Adaptive Grinding, Inc. Force-controlled steadyrest system
EP0394209A2 (en) * 1989-04-19 1990-10-24 Uva International Ab Improvement in and relating to grinding machines
US5103596A (en) * 1990-11-05 1992-04-14 Toshiba Kikai Kabushiki Kaisha Method and apparatus for controlling cylinder grinding machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148548A1 (en) * 1981-12-08 1983-07-07 Escher Wyss AG, Zürich Grinding attachment for grinding the circumferential surface of a roll
GB2143756A (en) * 1983-07-25 1985-02-20 Citizen Watch Co Ltd Grinding machine
US4602459A (en) * 1985-02-15 1986-07-29 Mar Engineering, Inc. System for active error compensation during machining
EP0211539A2 (en) * 1985-07-29 1987-02-25 Energy-Adaptive Grinding, Inc. Force-controlled steadyrest system
EP0394209A2 (en) * 1989-04-19 1990-10-24 Uva International Ab Improvement in and relating to grinding machines
US5103596A (en) * 1990-11-05 1992-04-14 Toshiba Kikai Kabushiki Kaisha Method and apparatus for controlling cylinder grinding machines

Also Published As

Publication number Publication date
GB9600329D0 (en) 1996-03-13
GB2294226B (en) 1997-04-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050801