Metal deforming – With means to drive tool – Including yieldable connection in drive train to movable tool
Patent
1997-12-16
1999-07-27
Hail, III, Joseph J.
Metal deforming
With means to drive tool
Including yieldable connection in drive train to movable tool
72433, B26F 102
Patent
active
059271400
ABSTRACT:
A tool accelerator is disclosed that is cooperatively disposed in a stamping and forming machine that is adapted to operate on a strip of relatively hard material. The tool accelerator generally includes a trigger punch having a proximal end and a distal end. A tool is coupled to the proximal end of the trigger punch and is adapted to perform work on a strip of relatively hard material. A spring is disposed between a portion of the stamping and forming machine and the proximal end of the trigger punch, the spring being capable of being compressed by a predetermined amount in response engagement of the distal end of the trigger punch with the strip of relatively hard material. Structure is provided for triggering the release of the compressed spring when the predetermined amount of compression is reached where the time period for moving the tool into engagement with the strip of relatively hard material coincides with a rate of travel sufficiently fast so that the forming operation is completed in less than the stress relaxation time constant of the material and without cracking the strip of relatively hard material.
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Anastasi Salvatore
Hail III Joseph J.
Hong William
The Whitaker Corporation
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