Patents Assigned to EHT Werkzeugmaschinen GmbH
  • Patent number: 5996389
    Abstract: A processing machine for plate-like workpieces, especially a bending machine, which has a strip-like vise holder (5) as a workpiece support for supporting the workpiece (1) to be processed and a hold-down device (3) which is subdivided into individual segments (4) which are movable relative to one another in the direction of the bending line, and preferably are also interchangeable in order to be able to be adaptable to differing dimensions and shapes of the workpiece (1) to be processed. In this way, the edges (1a) on a workpiece (1) can be bent such that they can form undercuts, but the separation of this workpiece (1) so processed from the hold-down device (1) nevertheless remains possible.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: December 7, 1999
    Assignee: EHT Werkzeugmaschinen GmbH
    Inventor: Hermann Kaltenbach
  • Patent number: 5979214
    Abstract: A bending machine (1) for bending the edges (3) on sheet-like workpieces (2). The workpieces (2) can be grasped by clamping jaws (12) located on a manipulator (11) and supplied to a tool (6) and a mount. The manipulator (11) is located and supported above the processing plane and the workpiece support (4). The clamping jaws (12) can, in addition to being movable transversely or perpendicular to the tool (6), are also movable parallel thereto, and can rotate about an axis (15) running perpendicular to the workpiece plane. The workpieces (2) can be held in any position and then conveyed, without the need for additional conveying, transfer and removal devices, because all of these functions can also be performed by the manipulator (11).
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: November 9, 1999
    Assignee: EHT Werkzeugmaschinen GmbH
    Inventors: Heinz Fetsch, Hermann Kaltenbach, Walter Pfleiderer