Punch press transfer mechanism

Details Punch press transfer mechanism Punch press transfer mechanism

1988-01-04

1989-05-30

Crane, Daniel C.

Metal deforming

By plural tool-couples

With means to feed work between plural tool stations

198621, B21J 1308

Patent

active

048339083

ABSTRACT:
A workpiece (W) transfer assembly (10) is provided for a progressive die type punch press. The assembly (10) includes a first crank bar (28) driven to oscillate about a first rock shaft (24) by the press ram, and a second crank bar (36) driven to oscillate about a second rock shaft (32) by the press ram. A horizontal linkage (40) extends between the first crank bar (28) and a workpiece engaging jaw (18). A vertical linkage (42) extends between the second crank bar (36) and the horizontal linkage (40). A linear bearing (48) interconnects the vertical linkage (42) and the horizontal linkage (40). A plate (44) having a vertically elongated slot (46) disposed therein is attached to the horizontal linkage (40). The first crank bar (28) extends through the slot (48) and thereby imparts motion to the jaw (18). The combination of elements allow horizontal jaw (18) movement into and out of engagement with the workpieces (W), and lost motion transmission in the vertical direction for raising and lowering the jaw (18) relative to the stations.

REFERENCES:
patent: 4361413 (1982-11-01), Toda
patent: 4397174 (1983-08-01), Jungesjo
patent: 4407404 (1983-10-01), Rise et al.
patent: 4407405 (1983-10-01), Rise
patent: 4630461 (1986-12-01), Votava

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