Punch press with vertically reciprocating plunger

Details Punch press with vertically reciprocating plunger Punch press with vertically reciprocating plunger

1985-06-27

1987-02-24

Meister, James M.

Cutting

Tool or tool with support

Joint or connection

279 4, B21D 3704, B30B 1502

Patent

active

046448365

ABSTRACT:
A punch press has a vertically reciprocating plunger, and a die punch exchangeably secured at the plunger by means of a tool exchange device. The die punch has a die head, and the tool exchange device has an exchange insert with guide elements, and a retainer for the die head. The exchange insert is mountable in a holding annulus having guide elements which correspond complementary to the guide elements of the exchange insert. The die punch can be clamped by way of a clamping device against an abutment bearing. The abutment bearing is formed at the bottom side of a piston which is positively connected to the plunger. The piston forms part of the clamping device and has a shoulder surrounded at least over the extent thereof by the cylinder of a cylinder chamber of the clamping device and formed by a holding annulus. The holding annulus, in turn, is vertically adjustably connectable to the plunger by at least one reset spring and at least one guide rod. The piston engages with a centering spindle in the plunger and also centers the die head.

REFERENCES:
patent: 3548480 (1970-12-01), Daniels
patent: 3762264 (1973-10-01), Scott

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