BERNARD D VAILLETTE
Engineering in Leominster, MA
License number
Massachusetts 28655
Expiration Date
Jun 30, 2016
Type
Mechanical Engineer
Address
Address
Leominster, MA 01453
Professional information
Method And Apparatus For Controlling Grinding Processes
US Patent:
5042206, Aug 27, 1991
Filed:
Aug 29, 1989
Appl. No.:
7/400733
Inventors:
Edward L. Lambert - Westboro MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Assignee:
Cincinnati Milacron-Heald Corp. - Worcester MA
International Classification:
B24B 4900
US Classification:
5116577
Abstract:
A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process. By monitoring the magnitude of the normal force factor and by determining the wheel sharpness, the grinding machine of the subject invention enables automatic conditioning of a superabrasive grinding wheel, optimization of the grinding process, and optimization of reshaping of the grinding wheel.
Method And Apparatus For Controlling Grinding Processes
US Patent:
5025594, Jun 25, 1991
Filed:
Mar 8, 1990
Appl. No.:
7/490416
Inventors:
Edward L. Lambert - Westboro MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Assignee:
Cincinnati Milacron-Heald Corp. - Worcester MA
International Classification:
B24B 4900
US Classification:
5116593
Abstract:
A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process. By monitoring the magnitude of the normal force factor and by determining the wheel sharpness, the grinding machine of the subject invention enables automatic conditioning of a superabrasive grinding wheel, optimization of the grinding process, and optimization of reshaping of the grinding wheel.
Method And Apparatus For Controlling Grinding Processes
US Patent:
5044125, Sep 3, 1991
Filed:
Mar 8, 1990
Appl. No.:
7/490415
Inventors:
Edward L. Lambert - Westboro MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Charles B. Matson - Holden MA
Bernard D. Vaillette - Leominster MA
Assignee:
Cincinnati Milacron-Heald Corp. - Worcester MA
International Classification:
B24B 4100
US Classification:
5116593
Abstract:
A grinding machine is shown as including a machine base, a wheel supported by the base and carrying a rotatable superabrasive grinding wheel, a device for relatively feeding the grinding wheel and a workpiece at a feed rate along a normal force vector between the two, and an apparatus for controlling the grinding processes. The apparatus further preferably includes a force transducer mounted adjacent the wheelhead to measure the magnitude of the normal force factor occurring between the wheel and the workpiece, as well as a control device for varying the feed rate and for determining the relative wheel sharpness based upon the feed rate and the measured normal forces. The feed rate can thereby be varied in response to the determined wheel sharpness to maintain a substantially constant normal force and to optimize the grinding process. By monitoring the magnitude of the normal force factor and by determining the wheel sharpness, the grinding machine of the subject invention enables automatic conditioning of a superabrasive grinding wheel, optimization of the grinding process, and optimization of reshaping of the grinding wheel.
Pulley
US Patent:
3965765, Jun 29, 1976
Filed:
Mar 17, 1975
Appl. No.:
5/558630
Inventors:
Bernard D. Vaillette - Leominster MA
William E. Zastawny - South Grafton MA
William E. Zastawny - South Grafton MA
Assignee:
Cincinnati Milacron-Heald Corporation - Worcester MA
International Classification:
F16H 5536, F16H 718
US Classification:
742305
Abstract:
A pulley whose outer surface is in the form of three tapered portions selected for use with a flat belt.
Toolhead
US Patent:
3945694, Mar 23, 1976
Filed:
Nov 4, 1974
Appl. No.:
5/520410
Inventors:
Bernard D. Vaillette - Leominster MA
Assignee:
Cincinnati Milacron-Heald Corporation - Worcester MA
International Classification:
B24B 4100
US Classification:
308184A
Abstract:
A toolhead having a spindle mounted in axially spaced bearings wherein one of the bearings is allowed to slide axially during dynamic effects on the bearings or thermal expansion and contraction of the spindle, the axial movement being made possible by the provision of rows of barrel-shaped rollers.