Apparatus for forming joints

Details Apparatus for forming joints Apparatus for forming joints

1987-07-08

1989-08-15

Rosenbaum, Mark

Metal deforming

With means to drive tool

Including link-actuated tool support

29 211, 29432, 29521, B21J 918

Patent

active

048563161

ABSTRACT:
A method and apparatus for forming pierce type or pierceless clinch joints in two sheets of material, such as sheet metal, employs a drive system which eliminates the need for camming mechanisms and periodic adjustment of worn cams. A die and anvil are relatively moveable and are displaced relative to a punch by means of a single drive lever which is driven by the output shaft of a hydraulic or pneumatic cylinder. A slide which drives the die is pivotally connected both to the drive lever and to a second slide which drives the anvil. The anvil slide is pivotally connected to the drive lever. The anvil and die are displaced in synchronism with each other and with the punch to form a clinch joint in a single workstroke of the cylinder motor.

REFERENCES:
patent: 1569461 (1926-01-01), Cronwall
patent: 2693158 (1954-11-01), Danly et al.
patent: 3900937 (1975-08-01), Schleicher
patent: 4208776 (1980-06-01), Schleicher
patent: 4658502 (1987-04-01), Eckold et al.

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