HYDRAULIC CLAMPING AND FEEDING MECHANISM FOR ALTERNATE RECIPROCAL MACHINING FIXTURES

When valve spool 2 is shifted to the right, pump 1 delivers fluid to the upper end of power cylinder 3 whose piston 4 is linked to the work clamping and feeding fixtures (not shown). In its downward working stroke, piston 4 clamps the work and advances and feeds it to the cutting tool. Fluid from the lower end of cylinder 3 is delivered to the lower end of cylinder 5. This moves piston 6 upward, r…