Drill bit lug fixture

Details Drill bit lug fixture Drill bit lug fixture

1984-10-09

1986-09-23

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51217A, 269 60, 269157, 269902, 269258, B24B 4106

Patent

active

046127356

ABSTRACT:
A workpart fixture for an unbalanced drill bit lug includes a support having a vee-shaped recess with an included angle substantially the same as vee-shaped intersecting surfaces on the drill bit lug to receive same and a fluid actuated clamp assembly carried on an arcuate slide which is movable in a circular arc path laterally relative to the drill bit lug generally about a centerline through the drill bit lug body to accommodate right or left linear or angular offset of the line of intersection of the vee-shaped lug surfaces and to optimize clamping force on the lug in the fixture. The clamp assembly includes a clamp lever which is pivotal toward and away from the drill bit lug by a fluid actuator and which carries swiveling clamp pads that seat against the drill bit lug when the clamp lever is actuated by the cylinder.

REFERENCES:
patent: 235469 (1880-12-01), Stephens
patent: 1060477 (1913-04-01), Meyers
patent: 2107566 (1938-02-01), Gardner
patent: 2364150 (1944-12-01), Lowenstein
patent: 2416782 (1947-03-01), Valish
patent: 2612821 (1952-10-01), Skay
patent: 3211446 (1965-10-01), Headrick

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