Speed changing method of stepping motor for program control punching machine

The invention discloses a speed change method of a stepping motor for a program control punching machine, which comprises the following steps of: after initializing the program control punching machine, sequentially switching on a direct current motor, an oil pump motor and a main motor; and the pos...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	CHEN PINGWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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