Tool offset indicator

Details Tool offset indicator Tool offset indicator

1987-03-16

1989-11-21

McGlynn, Joseph H.

Gear cutting, milling, or planing

Milling

With limit means to aid in positioning of cutter bit or work

33638, 33642, 340680, 408 16, B23Q 1522

Patent

active

048818585

ABSTRACT:
A tool offset indicator for setting up cutting, milling and drilling operations in manually or programmable numerically controlled machines is provided. The tool offset indicator includes a block of insulating material interposed between electrically conductive top and bottom plates. An electric circuit providing power to an indicator is connected between the top and bottom plates such that when a tool cutting edge contacts either of the plates, the circuit is completed and the indicator device energized. One of the plates is compressively mounted to a surface of the block to prevent damage to the tool cutting edge if it over travels initial contact with the indicator surface.

REFERENCES:
patent: 3481247 (1969-12-01), Hayes
patent: 3552027 (1971-01-01), Jacobsen
patent: 3636814 (1972-01-01), Esch
patent: 3684939 (1972-08-01), Perry
patent: 4204782 (1980-05-01), Spits et al.
patent: 4326824 (1982-04-01), Laserman et al.
patent: 4334363 (1982-06-01), Stegemeyer et al.
patent: 4396322 (1983-08-01), Nomura et al.
patent: 4425061 (1984-01-01), Kindl et al.
patent: 4552493 (1985-11-01), Schultzshick
patent: 4622752 (1986-11-01), Harra
patent: 4826370 (1989-05-01), Conradsson

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