| 摘要 |
A punch press which has an X-Y guidance system for moving the workpiece relative to the workstation also includes means for rotating the workpiece on the worktable upon release of the workpiece from the X-Y guidance system. In this fashion, the workpiece may be rotated into a reoriented position and then reclamped in that position within the X-Y guidance system. This press includes a tool mounting means on the head of the press and means for effecting reciprocal motion of the tool mounting means along a vertical axis and rotation of the tool mounting means about that axis. Generally, the press will also include a die assembly in the base which includes at least a portion which is rotatable about the same vertical axis so that the workpiece when gripped therebetween may be freely rotated in a fixed clamped position to effect the desired reorientation. The tool mounting means may comprise the punch mounting mechanism, or the stripper mounting mechanism, and the entire lower portion of the ram assembly may be rotatable, or only the stripper assembly.
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