NUMERICAL CONTROL APPARATUS

• US 20140180466A1
• Filed: 07/13/2011
• Published: 06/26/2014
• Est. Priority Date: 07/13/2011
• Status: Abandoned Application

• Current Assignee: Mitsubishi Electric Corporation
• Original Assignee: Mitsubishi Electric Corporation
• Inventors: Kato, Kenji, Sagasaki, Masakazu
• Application Number:
  US14/131,358
• Publication Number:
  US 20140180466A1
• Time in Patent Office: Days
• US Class Current: 700/174
• CPC Class Codes: G05B 19/042 using digital processors G05B19/05 takes precedence
• CPC Class Codes: G05B 19/18 Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form G05B19/418 takes precedence
• CPC Class Codes: G05B 19/406 characterised by monitoring or safety G05B19/19 takes precedence
• CPC Class Codes: G05B 2219/32021 Energy management, balance and limit power to tools
• CPC Class Codes: G05B 2219/34315 Power supply turning on or shutting off
• CPC Class Codes: Y02P 70/10 Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

Devices, which correspond to I/O control signals that respectively control peripheral devices (114), and power consumptions of the peripheral devices are previously registered as parameters (103), and a state monitoring section (110) monitors whether I/O control signals are in on-state, and calculates an operating time, and a power amount calculating unit (111) calculates a power consumption amount of the peripheral device concerned on the basis of the operating time and the power consumption. Furthermore, the state monitoring section (110) has a function of, after machining is completed, forcibly stopping a peripheral device if there is a peripheral device that does not stop even after a predetermined time or after exceeding a predetermined power consumption amount, so that unnecessary power consumptions can be reduced.

Claims

1-3. -3. (canceled)

4. A numerical control apparatus comprising:

a storage which stores a power consumption amount from an end of machining unit turnoff of a peripheral device constituting a machine tool; and

a state monitoring means which identifies operational state of the peripheral device by monitoring state change of I/O control signal or auxiliary command for controlling the peripheral device, and which automatically makes a PLC processing unit to output a signal to stop the peripheral device in a case after machining is completed where the peripheral device is not stopped even after exceeding the power consumption amount from the end of machining until the turnoff, which is stored in the storage.