Sheet material loader/unloader for machine tools
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United States of America Patent
Stats
-
Aug 12, 2003
Grant Date -
Aug 7, 2003
app pub date -
Feb 7, 2002
filing date -
Feb 7, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A machine tool installation includes a machine tool with a work support table, and a workpiece guidance system. Adjacent the machine tool is a sheet material loader and unloader with a frame, a platform supported on the frame for vertical movement, and a sheet material gripper mounted on the frame for movement from a position forwardly of the frame to a retracted position. A sheet pickup depends from the platform to engage the top sheet of a stack of sheets disposed therebelow. A computer control operates the elements to move a workpiece on the work support table to a position adjacent the platform, and the gripper moves the workpiece onto the lowered platform. The sheet pickup engages a sheet and the platform is moved upwardly to move the engaged sheet to a position above the plane of the work support table which is moved thereunder, and the sheet gripper deposits the sheet on the work support table.
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