Stamping and forming machine having high speed toggle actuated r

Details Stamping and forming machine having high speed toggle actuated r Stamping and forming machine having high speed toggle actuated r

1995-04-03

1997-12-09

Jones, David

Metal deforming

With means to drive tool

Including link-actuated tool support

724525, 100282, B21J 918

Patent

active

056948042

ABSTRACT:
A stamping and forming machine (10) is provided for performing stamping and forming operations on strip material (274). The machine includes a ram (26) that reciprocates toward and away from a base plate (14). The ram carries tooling (362) that engages mating tooling (364) on the base plate for performing the stamping and forming operations. A toggle mechanism (222, 224, 226, 232, 238) is coupled to the ram (26) and the drive shaft (40) by means of a connecting rod (70) that moves the toggle over center (250) and then back again every revolution of the drive shaft. This provides two ram strokes of different lengths for each revolution of the drive shaft (40).

REFERENCES:
patent: 2251135 (1941-07-01), Iknayan et al.
patent: 2280587 (1942-04-01), Klocke
patent: 3661008 (1972-05-01), Richardson
patent: 4434646 (1984-03-01), Maeda et al.
Patent Abstracts of Japan: vol. 009, No. 275 (M-426), 2 Nov. 1985 & JP,A,60 118335 (Matsushita Denko KK), 25 Jun. 1985.

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