HYDRAULIC DRIVE MECHANISM OF A MACHINE TOOL TABLE WITH A TRAVELLING CYLINDER

Fluid is delivered by variable-displacement pump 1 into hollow piston rod 2 and through port b to the right end of cylinder 3 which moves to the right together with table 4. The table is reversed by lever 5, turning about fixed axis A, and trip dogs c and d. After reversal, fluid is delivered through port a to the left end of cylinder 3, moving it to the left.
$4156$CHP,Dr$