Patent ID: 6400994
Filing Date: 2002-06-04
Classification: G01B

Abstract:
A unit for pneumatically controlling the position of a workpiece to a predetermined workpiece configuration, comprising:an enclosure, a minimum of one measuring nozzle for a gaseous pressure medium located in a contact surface of a workpiece fixture a pressure supply unit connected to the measuring nozzle via pressure lines separately adjoining modular enclosure components detachably connected to one another, each fitted with a connection leading to the measuring nozzle, a first enclosure end cover which can be connected to the pressure supply unit and a second enclosure end cover located at a distance from the first enclosure end cover, the first enclosure end cover the modular enclosure components that adjoin the first enclosure end cover, and the second enclosure end cover that adjoins the modular enclosure components forming the overall enclosure, at least the first enclosure end cover and the modular enclosure components being connected to one another by the pressure lines each modular enclosure component being fitted with a throttling device coordinated with the nozzle and with a differential pressure sensor located downstream from the throttling device for actuating a unit as soon as a pressure falls below or exceeds a predetermined pressure limiting value the unit actuated by the differential pressure sensor being a signaling unit a display unit, each modular enclosure component fitted with a signaling unit and/or a display unit for the analog display of the pressure value measured by the pressure sensor.