Method and apparatus for forming joints

Details Method and apparatus for forming joints Method and apparatus for forming joints

1989-03-20

1990-02-06

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Assembling or joining

29521, 72354, B23P 1100

Patent

active

048979120

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: 3091843 (1963-06-01), Double et al.
patent: 3885299 (1975-05-01), Hafner
patent: 3900937 (1975-08-01), Schleicher
patent: 4208776 (1980-06-01), Schleicher
patent: 4658502 (1987-04-01), Eckold et al.
patent: 4716755 (1988-01-01), Bulso, Jr. et al.
patent: 4760634 (1988-08-01), Rapp

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