FIELD: process engineering.
SUBSTANCE: proposed chuck comprises holder with tool intake shaped to sleeve part. Said sleeve part has tool intake hole from concentric axis of holder rotation by mating surface. The latter allows shrink fit of tool shank therein. While grooves extend from said mating surface. To up precision of the groove centering, said mating surface is divided into multiple segments, in fact stiff in axial direction and comparable with groove radial depth. Said depth is selected on condition of uniform release of shrink fit over all mating surface segments caused by heat applied to sleeve part outer surface.
EFFECT: higher precision of groove centering.
13 cl, 3 dwg
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