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Valves grinding machines
An integrated solution for perfect valve preparation.
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The challenge
The customer wanted a placement system that could accurately position engine valves during a grinding and finishing stage in their manufacture. The values are first placed against a support for the initial grinding, then repositioned and supported for the finish dressing with a diamond wheel, this finishing rectification may be required on various parts of the valve body.
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The solution
The system, in its recent versions, is controlled by an Omron PLC. The input devices (Sensors) and the output devices (pneumatic, hydraulic and electric actuators) are controlled by boards mounted on the backplane and by boards connected by a sensorbus. The PLC based motion controllers control the simple and the interpolated placements of the wrecker for the grindstone, of the tower for pliers and the support for the diamond. The patterns are calculated by a PC with dedicated software.
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Added value
This solution integrates well into the basic functions of the numerical control of the PLC that controls the sensors, the actuators, and the dialog with a PC used to set the quotation/monitoring. Furthermore the remote solution reduces the cabling work.
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