APPARATUS FOR CLAMPING WORKPIECES ON MACHINE TOOLS
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United States of America Patent
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Issued Date -
May 4, 2023
app pub date -
Mar 29, 2021
filing date -
Mar 31, 2020
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Abstract
The apparatus (1) for clamping workpieces on machine tools comprises:
- a basic frame (2) fixable to a machine tool (M) for machining a workpiece (P);a clamping unit (3);a hydraulic actuator (22, 23) comprising a first chamber (26) which can be supplied with a first pressurized hydraulic fluid and is connectable to a first sensing device (27) for sensing the pressure of the first hydraulic fluid;a sensing channel (15) which can be supplied with pressurized air and which is connectable to a sensing sensor (16) for sensing the pressure of the air;wherein the first sensing device (27) and the sensing sensor (16) are connectable to a control system adapted to authorize the machining of the workpiece (P) when the pressure of the first hydraulic fluid and the pressure of the air are simultaneously higher than their respective threshold values.
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