(57) A punch press (20) having a worktable (40) for supporting a worksheet (21), a two
axis positioning mechanism for positioning the worksheet under a punching head (34)
and universal grippers (44, 46) supported on the worksheet positioning mechanism which
can grip either the end or sides of a worksheet (21 The two axis positioning mechanism
is formed from a carriage (42) which is movable along the worktable (40) and a cross
slide (41) which is mounted from and movable across the carriage (42) to provide the
two axis sheet positioning. The grippers (44, 46) are mounted from a T-slot (130)
formed in the cross slide (41) and can be moved to different positions to accommodate
various sheet sizes. Aligning pins (140, 142, 143, 144) which can be used for aligning
worksheets are provided. Aligning pins (140, 142, 143, 144) during operation are retracted
beneath the worktable (40).
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