JPH032623B

In a position control apparatus for a table of a machine tool, for example, wherein the position of the table is detected by a position detector and a difference between a detected position and an instructed position is used to control the speed of a driving motor of the table, the position detector...

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Bibliographic Details
Main Author YAMASHITA KAZUTAKA
Format Patent
LanguageEnglish
Published 16.01.1991
Subjects
COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT
CONTROL OR REGULATING SYSTEMS IN GENERAL
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING
ELECTRICITY
FUNCTIONAL ELEMENTS OF SUCH SYSTEMS
GENERATION
MACHINE TOOLS
MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS
PERFORMING OPERATIONS
PHYSICS
REGULATING
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TRANSPORTING
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Summary:In a position control apparatus for a table of a machine tool, for example, wherein the position of the table is detected by a position detector and a difference between a detected position and an instructed position is used to control the speed of a driving motor of the table, the position detector is constructed as an absolute type. Further, there is provided an error correcting device producing a correction value corresponding to an instructed position or a detected position. During starting, the correction value is added to the absolute value and the sum is used to update an instructed position register.
Bibliography:Application Number: JP19850232107