Drill cutting edge grinder

Details Drill cutting edge grinder Drill cutting edge grinder

1985-12-12

1987-11-03

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

B24B 1900

Patent

active

047035889

ABSTRACT:
A cutting edge grinder for grinding the cutting edges of drills includes a center shaft coaxial with a chuck to hold a drill to be ground, a cam attached to the center shaft, a movable frame to hold the center shaft so as to turn freely, a guide member to guide the movable frame in an inclined direction from the center of the center shaft, a turning means to turn the center shaft, and a pressing member to come in contact with the cam face of the cam, such that simple and accurate grinding of curved cutting edges of different shapes is made possible.

REFERENCES:
patent: 4001975 (1977-01-01), Bernard et al.
patent: 4261142 (1981-04-01), Nixon et al.
patent: 4544310 (1985-10-01), Tyynela et al.

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