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Digital controller

A digital controller and controlled technology, applied in the direction of digital control, electrical program control, etc., can solve a large number of problems such as

Inactive Publication Date: 2008-04-30
FANUC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that it takes a lot of time to transfer the control of the spindle

Method used

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Embodiment Construction

[0015] figure 1 is a block diagram illustrating the main part of the digital controller 10 according to an embodiment of the present invention. The CPU 11 is a processor that controls the digital controller 10 as a whole. The CPU 11 reads the system program stored in the ROM 12 via the bus 19, and controls the digital controller according to the system program. The RAM 13 stores temporary calculation data, display data, and various data input by the operator through the display / MDI unit 20, which includes a display such as a CRT and LCD, and a keyboard. The CMOS memory 14 is powered by a battery (not shown), and is a nonvolatile memory that can be in a storage state even when the power to the digital controller is turned off. Stored in the CMOS memory 14 are machining programs for controlling the systems #1 and #2 read through the interface 15 or input through the display / MDI unit 70 . Further, editor programs for generating and editing machining programs and other applicat...

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Abstract

The invention relates to a digital controller, which can shorten the needed time to control the transference of a principal axis between different control systems and determine whether a control command of the principal axis is included in the processing program of a control system. If the control command of the principal axis is included, the digital controller executes the command, stores the information of the rotating speed and direction of the specified messages, and commands of the principal axis in the mode of speed control, and stores the information of the rotating position and speed of the specified messages and commands of the principal axis in the mode of position control. When reading the command to cancel control over the principal axis, the digital controller transfers the information of controlling the specified principal axis and the stored control state of the principal axis to the other control systems, and reads to acquire commands to control the principal axis in the processing programs of the other control systems. The other control systems start to control the specified principal axis based on the transferred control state of the principal axis and execute processing to the programs of all the control systems.

Description

technical field [0001] The present invention relates to a numerical controller for controlling a machine tool, especially a numerical controller capable of performing multi-system control. Background technique [0002] Typically industrial machines such as machine tools are controlled by numerical controllers having multiple control systems that are independent or synchronized with each other. There are two situations under this control: each control system has a main shaft; different control systems control a main shaft in turn. [0003] For example, in the case where a workpiece is attached to spindles that are separately controlled by different control systems and rotate synchronously, time delays may occur when starting the spindles controlled by the respective control systems, thereby causing damage to the workpiece. In order to prevent this situation, a digital controller is proposed, in which the processing program of one control system includes control instructions ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
Inventor 藤林谦太郎细川匡彦小川修二三宅雅彦
Owner FANUC LTD