Cellular Phone Cover Assembly Machine
Cellular phone covers are fed in plastic trays, five at a time, and have gaskets and clear.
This machine assembles cellular phone windows onto self-adhesive gaskets and applies a protective label. The gaskets are supplied 5 up on sheets of backing paper and are loaded by the operator onto fixtures on an over and under servo-driven indexing conveyor. The windows are supplied in vacuum formed trays and are loaded by the operator into an automatic tray progression system. Empty trays are discharged into a pile at the end of the machine. The indexing conveyor makes 4 short indexes between gaskets and then 1 long index to get to the next sheet.
- Machine Number: 5450
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Machine Control: The machine is controlled by a pair of Intel-based PC’s. The main control computer is a 10 slot passive backplane computer with a 486SX-33 processor. It has one 5 axis DSP based motion control board that control the motion of the 4 servo parts placer axes and the indexing conveyor servo motor on the machine, one TMS 34010 based vision system board and a GE PCIF card used to communicate with up to 4 racks of GE 90/30 Input Output modules.
This computer actually controls the real-time operation of the machine using a custom C++ program running on DOS 6.2. The other computer is a 75 MHz Pentium PC running Windows 95 that provides the Man-Machine Interface and data collection.
- Cycle Rate: This machine processes 15 windows per minute.
- Robots: The window loading station uses four-axis Cartesian coordinate robots made up of Intelligent Actuator servo-driven ball screw slide modules. Each axis module is repeatable to +/- 0.0004″. All modules are heavy duty and are doweled or keyed together to preserve alignment if they are disassembled for repair