Center punching apparatus

Details Center punching apparatus Center punching apparatus

1988-09-06

1990-01-16

Watts, Douglas D.

Cutting

With work immobilizer

83521, 83685, 83700, 8352223, B26F 114

Patent

active

048935360

ABSTRACT:
A center punching apparatus is disclosed as having an upper die base and a lower die base relatively movable. An upper die is mounted on the upper die base facing downwardly and on the lower die base a rotatable turntable is mounted for rotation about an axis coaxial with the upper die. A movable table on the turntable holds the workpiece of a material to be punched and is movable accurately in X and Y directions by micrometers for independent movement. The workpiece can thus be moved in X and Y directions on the apparatus without relating the movements to any X and Y coordinate system on the workpiece. The workpiece is accurately marked with reference indicia such as a circle, a line or a plurality of points for accurately monitoring the position of the indicia by direct visual viewing of the indicia through a microscope. The workpiece is accurately positioned by rotating the turntable and moving of the movable table along X and Y directions with the material to be punched thereon.

REFERENCES:
patent: 1630659 (1927-05-01), Hacker
patent: 3079140 (1963-02-01), Sorchy
patent: 3332308 (1967-01-01), Keen
patent: 3719115 (1973-03-01), Muri
patent: 3763730 (1973-10-01), Ahlegian
patent: 3807265 (1974-04-01), Mohr
patent: 3982458 (1976-09-01), Terasaka
patent: 4674373 (1987-06-01), Kuppinger

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