exercise 4 - description of exercise
a double-acting clamping cylinder of the drilling station is triggered by a 5/2 -way solenoid valve, the double-acting feeding cylinder of the drilling machine and the air jet are triggered by each a 5/2 -way valve with spring return.
after a short actuation of the start-button the piston rod of the clamping cylinder should advance as an additional starting condition, a workpiece should be inside of the mounting (s0.6 actuated) and the x-axis and the y axis should be in normal position (x-axis at s0.10 any y-axis at s0.11 ). futhermore the piston rod of the drilling machine feeding cylinder should be at its upper end position
if the piston rod is reaching the front end position ( pressure control s0.5 actuated), a simultaneous actuation of the following function occurs : drilling machine on, drilling machine advance and air jet function
if the piston rod of the drilling machine's feeding cylinder is reaching its lower end position (at s0.8), respective valves are reverse, which means : drilling machine off , drilling machine back and air jet off-end of sequence.
At the end of the sequence please pick up the workpiece by hand (reverse of the solenoid valve of the clamping cylinder manually)
if the axes not in their normal positions, please move manually by actuation of the Tipp-button (inside control cabinet)
please adjust the pressure control at a pressure of 5 bar
adjust the one-way flow control valves, so that forward-as well as backward
movements are not abruptly.