NC MACHINE TOOL WITH TORQUE LIMITING FUNCTION

NC MACHINE TOOL WITH TORQUE LIMITING FUNCTION

PURPOSE:To prevent such accidents that motors break a tool or remove a work holder. CONSTITUTION:A limit value setting means 3 preset with the torque limit values below the allowable maximum torque values of motors 9c, 9z and comparing means 11c, 11z comparing the current limit values corresponding...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: NAKAMINAMI NARIMITSU
Format: Patent
Sprache:eng
Schlagworte:
COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT
DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING
MACHINE TOOLS
MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:PURPOSE:To prevent such accidents that motors break a tool or remove a work holder. CONSTITUTION:A limit value setting means 3 preset with the torque limit values below the allowable maximum torque values of motors 9c, 9z and comparing means 11c, 11z comparing the current limit values corresponding to the torque limit values and the current values detected by current detecting means 10c, 10z are provided, and current control means 8c, 8z control the currents of the motors 9c, 9z to the current limit values or below lower than the allowable maximum current values of the motors 9c, 9z based on the results of the comparing means 11c, 11z.