Transfer mechanism for punch presses

Details Transfer mechanism for punch presses Transfer mechanism for punch presses

1988-05-31

1989-08-01

Crane, Daniel C.

Metal deforming

By plural tool-couples

With means to feed work between plural tool stations

72421, B21J 1308

Patent

active

048523810

ABSTRACT:
A transfer assembly (10) for carrying workpieces (W) to subsequent forming stations in a punch press (12) is disclosed. The reciprocation of a press ram (14) actuates a plate cam (50) having a curvilinear slot (52) disposed therein to arcuately displace a rocker arm (34). The rocker arm (34) linearly drives an input rack (42) having a series of gear teeth extending therealong. The gear teeth of the input rack (42) engage and rotate an input gear (44) integrally connected to an output gear (46) having a pitch circle diameter larger than that of the input gear (44). An output rack (40) having a plurality of gear teeth extending therealong engages the output gear (46) for moving a workpiece engaging jaw (18) longitudinally of the work stations a greater distance than the input rack (42) is moved.

REFERENCES:
patent: 3011464 (1961-12-01), Danly et al.
patent: 3105399 (1963-10-01), Strugala et al.
patent: 3411636 (1968-11-01), Wallis
patent: 3422657 (1969-01-01), Grombka et al.
patent: 4311429 (1982-01-01), Wallis

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