AUTOMATIC FINE BORING
PC CONTROL Closed-loop system with the integration of an EWA controller.
Automatic Process Via EWA Controller Integration In this solution, the integration with a legacy machine tool is done via a specific application running on an EWA controller. The EWA can be used on machines with BT/BBT30-40-50, CV/BCV(SK)40-50, BIG CAPTO 5-6-8 and HSK-A63-80-100-125. This integration needs to be setup on site since much depends on the machine tool control type. Different machine tool control models may require additional integration efforts. The machine tool must be equipped with high-precision measuring probes for bore size measurement. The PC acts as a synchronization interface between the machine tool and the EWA. It stops the machining cycle after the touch probe makes a measurement, reading the result and sending the corresponding adjustment value to the EWA. After the EWA has been adjusted, the PC notifies the machine tool to continue the process. The machine code needs to be written according to the following flow chart.
EXAMPLE FOR AUTOMATIC APPLICATION Requirements
Bore Target Ø: 2.756" Tool Pre-Set Ø: 2.752" Initial Rough Bore Ø: 2.748"
Automatic Process
W
Cut and Measure Measuring Bore 2.752"
Calculate Adjustment (.004")
Measure Bore (2.756")
Measure Rough Bore 2.748"
Adjust Tool (.004")
Tool Pre-Set 2.752"
Produce Final Bore
END
BORE < TOLERANCE
BORE WITHIN TOLERANCE
Decision
BORE > TOLERANCE
ALARM
7
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