Graphic input controlled automatic positioning system

US4151451A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Horst Maertins · Berlin, DE
• Peter Rothfuss · Ditzingen, DE
• Gernot Maier · Stuttgart, DE
• Ulrich Stratemeier · Schwieberdingen, DE

Key dates

• Filing date: Jan 13, 1977
• Grant date: Apr 24, 1979
• Expiry date: Jan 13, 1997

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/25197
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An analog of a path through which a cross slide table, for example carrying a workpiece or a tool is to be moved is traced on a drawing sheet. At points of change of direction or commanded speed of movement, graphic machine-readable symbols are placed on the drawing. A sensor, with sensing elements located in the quadrants of an x-y coordinate system, preferably secured to the cross slide itself, is placed above the graphic drawn representation of the movement path, the graphic representation is introduced by means of a program carrier beneath the cross slide and, upon recognition of symbols representing change of direction, speed of movement, suitable signals are derived which control servo motors moving the cross slide and the sensor in accordance with the sensed signals picked up by the sensor from the graphic representation of the movement immediately beneath the cross slide table itself, thus avoiding the necessity of numerical or other programmed input to the cross slide.