Cutting – Means to drive or to guide tool – Plural tools selectively engageable with single drive
Patent
1997-05-20
1999-01-26
Rachuba, M.
Cutting
Means to drive or to guide tool
Plural tools selectively engageable with single drive
8343511, 8343521, 834374, B26D 508
Patent
active
058627332
ABSTRACT:
Two drive motors (9L, 9R) are provided on both sides of the ball screw (5), and the ball screw is driven by these two drive motors simultaneously. Therefore, the ball nut (17) attached to the worktable and in mesh with the ball screw (5) can be moved reciprocatingly to move and locate the worktable (15) on which workpiece (W) is clamped. Since the ball screw can be rotated by the two drive motors together, even if a ball screw of large lead is used, the maximum rotational speed and the maximum acceleration can be both increased, so that the workpiece can be located in position in a short time. In addition, since the torsional stress and strain generated in the ball screw can be both reduced, the locating precision can be further improved. When the workpiece feeding apparatus is applied to a turret punch press, for instance, the carriage (49) is driven and located in the X-axis direction, and the carriage base (39) is driven and located in the Y-axis direction, both by use of the above-mentioned workpiece feeding apparatus.
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Hirose Shunzo
Seto Yoshiharu
Amada MFG America Inc.
Rachuba M.
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