Punch retainer

Cutting – Tool or tool with support – Joint or connection

Patent

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Details

83685, 83691, 83699, 83700, 279 79, B26D 726, B26F 114

Patent

active

045586209

ABSTRACT:
The punch retainer mounted on a die shoe has a body with a backing plate fastened to the top face thereof. The body is formed with a first bore for retaining a punch, the inner end of which abuts the backing plate. A first dowel projecting from the mounting face of the die shoe extends into the backing plate in axial alignment with the central axis of the first bore. Second and third bores in the body register with second and third holes in the backing plate. Tubular dowels engage in the registering bores and holes to align the backing plate on the body. The retainer is mounted on a die shoe by holding screws which extend through the tubular dowels and thread into the die shoe. The backing plate is aligned on the die shoe by either a separate fourth dowel in the backing plate spaced remotely from the first dowel or by extending one of the tubular dowels beyond the backing plate for engagement with a registering opening in the die shoe.

REFERENCES:
patent: 3106122 (1963-10-01), Newcomb
patent: 3245694 (1966-04-01), Parker
patent: 3563124 (1971-02-01), Gargrave
patent: 4377100 (1983-03-01), Wallis

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