Body 1 of the fixture carries the V-blocks in which workpieces 2 are clamped and rotates with respect to stationary base 3. Four workpieces are simultaneously loaded and clamped in each clamping section. As piston 4 is moved downward by the action of fluid delivered to the top end of its cylinder, it turns bell-crank lever 5, to which pad 6 is secured, counterclockwise. As a set of four workpieces approaches milling cutters 7, roller 8 runs onto pad 6, pushing pin 9 outward and turning lever 10 about axis A. This clamps the workpieces by means of two self-adjusting wedge-head pins 11. The clamping action continues during the time the four workpieces are being milled. When the workpieces leave the milling cutters, roller 8 runs off pad 6, spring 12 pulls lever 10 toward the centre and the workpieces are released. Then pin 13 is disengaged by spring 14 from a tooth of internal ratchet wheel 15, striking ejector 16 which ejects the milled workpieces out of the fixture.
$3984$LHP,FD$