FIELD: mechanical engineering. SUBSTANCE: device has three chucks. One of them is working chuck to be installed on machine tool table. It accommodates auxiliary chuck for front tail end of broach. The other, is auxiliary chuck which serve for clamping the rear tail end of broach. Nut for catching by telpher hook is located on auxiliary chuck body. Central bevel hole is made in auxiliary chuck body which also accommodates yoke with helical grooves and cams mounted for simultaneous radial displacement. Yoke is mounted for turning, and cams are coupled to its grooves by pins. EFFECT: reduced labor intensity during installation of tool. 3 dwg
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