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Punch press with means for rotating the workpiece and method of using same and tooling therefor

  • US 4,602,541 A
  • Filed: 12/06/1984
  • Issued: 07/29/1986
  • Est. Priority Date: 12/06/1984
  • Status: Expired due to Fees
First Claim
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1. In a method for punching cutouts in a sheet-like workpiece, the steps comprising:

  • A. providing a punch press having a frame with a base and a head spaced thereabove supporting a ram assembly, workpiece clamping and moving means for moving a workpiece between said base and head along X and Y axes, tool mounting means mounted on said head for reciprocal movement along a vertical axis and rotatable about said axis, and a die assembly in said base in alignment with said ram assembly;

    B. mounting in said tool mounting means workpiece gripping tooling adapted to engage a workpiece when brought into contact therewith;

    C. supporting a sheet-like workpiece on said base between said die assembly and said head;

    D. gripping said workpiece in said workpiece clamping and moving means;

    E. moving said tool mounting means along said vertical axis to bring said workpiece gripping tooling into contact with said workpiece and to clamp said workpiece between said gripping tooling and said base;

    F. releasing said workpiece from said workpiece clamping and moving means;

    G. rotating said tool mounting means about said vertical axis and thereby rotating said workpiece on said base to effect reorientation thereof relative to said X and Y axes;

    H. reengaging said workpiece in the reoriented position in said workpiece clamping and moving means; and

    I. moving said tool mounting means away from said workpiece to release it from said workpiece gripping tooling.

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