Electric servo motor punch press ram drive

Details Electric servo motor punch press ram drive Electric servo motor punch press ram drive

1994-06-13

1996-12-31

Jones, Eugenia

Cutting

Processes

83 766, 83 769, 83628, B26D 514

Patent

active

055883443

ABSTRACT:
A punch press ram drive is described in which a reversible electrical servo motor is coupled to a crankshaft having an eccentric journal driving a pitman arm connected to the ram. The electrical servo motor is operated by program controls so as to either cause rotation or oscillation of the crankshaft to drive the ram through various programmed stroking modes, in which punch position, velocity, acceleration, varying over the course of a stroke may be programmed.

REFERENCES:
patent: 2182544 (1939-12-01), Murrian et al.
patent: 2454881 (1948-11-01), Michelman
patent: 4478122 (1984-10-01), Hunter
patent: 4846014 (1989-07-01), Shiga et al.
patent: 4979410 (1990-12-01), Kusakabe
patent: 5115735 (1992-05-01), Gloe et al.
patent: 5176054 (1993-01-01), Capps
patent: 5279197 (1994-01-01), Takeda et al.

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