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403 Examples of Systems
The difference between a work cell and a system involves whether or not the machines in the work cell can communicate with each other. According to this, Groups 1, 2, and 3 are work cells, and groups 4, and 5 are systems.
Group 1- Machines that cycle automatically but require manual loading and unloading. (see 402)
Group 2- Single dedicated (not flexible) machines that cycle automatically with separate automatic material handling. (see 402)
Group 3- Flexible groups of automatic cycling machines with separate material handling arranged in a work cell. (see 402)
Group 4- A group of machines dedicated to one part (not flexible), controlled from a central point with communication.
Group 5- A group of machines capable of making any part within a range of materials (flexible), controlled from a central point with communication.
| Group #4 |
Automated system dedicated to a particular part with communication between machines. |
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Example 5.- Bundle descrambler feeds CNC cutoff, discharge into loader feeding end finisher, discharge into semi auto loader for bender, bend tube, robot unload to automatic inspection jig, same robot feeds good parts to cutoff and bad parts to rework bin, overhead transfer system picks parts from cutoff and moves them through: deburring, end reducing, heating, square end form, pre-notching, notching, punch, and discharge table. Visual inspection by operator occurs at discharge table, the other operator loads the bundle descrambler. Material is 2.5" OD .173" Wall HSLA. Cycle time is 35 sec. per part. |
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Example 6.- Motorized conveyer system brings special rack container to full rack discharge area, full rack is fed out for robot unloading to semi auto loader, loader feeds bender, same robot unloads bender, powered conveyors transfer empties out of the way. |
| Group #5 |
Flexible automated system with communication |
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Example 7.- Simple: bundle descrambler feeds CNC cut to length, discharge table tips good parts into bender's auto loader and ends into scrap bin, after bending tubes are removed from bender by a robot. The largest tube this system will run is 1 3/16" OD (30mm) .125 Wall in steel. |
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Example 8.- Complex: powered uncoiler feeds straightener, tube is drawn through by CTL then cut and placed in a transfer system which moves tube through: LH debur, LH load nut and or sleeve, LH end form, RH debur, RH load nut and or sleeve, RH end form, parts are then switched to one of two benders, a robot removes tubes from benders. The tube size range for this system is 5/16" through 1/2" OD.This system runs an average of one part every 17 seconds and changes over to a new part in less than 10 minutes with one operator. |
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