FIELD: machine-tool industry; clamping devices for metal-cutting machines. SUBSTANCE: mechanism for turning clamping L-shaped levers 3 is made in form of shafts 15 and 16 of different length which are received by holes provided in one plane of housing 1. Shafts have holes 20 in their lower portions where springs 21 are mounted. In center portion, shafts are rigidly connected by means of plate 18 provided with spring-loaded plunger in its center portion. This plunger is engageable with groove provided in housing 1. Upper portion of shafts is connected with center portion of clamping L-shaped levers articulated on rocker arm whose center portion is engageable with center portion of plunger fitted between clamping L-shaped levers. Plunger has groove for receiving the roller and hole for receiving the axle. EFFECT: enhanced reliability. 6 dwg
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