Question

(b) Compute the cycle time and production rate for a single-machine robotic cell for an 8- hour shift if the system availability is 90%. Also determine the percent utilization of machine and robot. On average, the machine takes 30 s to process part. The other robot operation times as follows: Robot picks up a part from the conveyor 3.0 s Robot moves the part to the machine 1.3 s Robot loads the part onto the machine 1.0 5 Robot unloads the part to the machine 0.75 1

Answer 1

30 sec . Processing time 2 time or setup time Sum of rest all tomes Auxiliary • 3+ 1 + 1.3 + 7 1,5 t.s +4 S 12 sec : tot al time production time & Setup time - 30 s t 125 425 shift hours 8 907 availability available machining hours . 0.9x8 4.29 - 7.2x 60x60 -25920 sec to tal no. of parts produced in this time 25920 42 i total parts producted in a shift : 617-14 parts ~ 617 parts Ary.