GB/T 39129-2020Numerical control system of machine tool—Fault diagnosis and correction specification (English PDF)

2.1 Machine CNC System

A control system that uses numerical control to control machine tool processing functions.

Note 1.Machine tool numerical control systems generally include hardware devices and corresponding software. The machine tool numerical control system is mainly composed of a numerical control device (also called a control unit) and a driving device (Motor drive unit and motor, sensor) and other components. The numerical control device is the main part of the machine tool numerical control system, which mainly includes a microprocessor, a

Motion (position) controller, memory, input/output (I/O) and communication interface, man-machine interface (display and keyboard), operating buttons (keys) and other hardware (and/or circuits) and corresponding control software.

Note 2.There are multiple classification methods for machine tool numerical control systems. According to different functions, machine tool CNC systems are usually divided into three types. simple type, high-performance type and popular type;

According to the different application technology, it can be divided into two kinds of special and general CNC systems; according to the different feedback control forms, it can be divided into open loop control and semi-closed loop control.

There are three types of control and closed-loop control; according to the different processing control methods, it can be divided into three types. point control, linear control and contour control.

Note 3.Rewrite JB/T 11989-2014, definition 2.1.3.

2.2 malfunction

The state in which the CNC system of the machine tool cannot complete the required function. Except for preventive maintenance or other planned actions or lack of external resources.

Note 1.The failure is usually caused by the failure of the product itself, but even if the failure does not occur, the failure may exist.

Note 2.Rewrite GB/T 2900.13-2008, definition 191-05-01.

2.3 Troubleshooting

Actions taken for fault identification, fault location and analysis of the cause of the fault.

[GB/T 2900.13-2008, definition 191-07-22]

2.4 malfunction repair

Fault repair

After the fault is located, the action taken to restore the faulty product to a state where it can complete the required function.

Note. Rewrite GB/T 2900.13-2008, definition 191-07-23.

3.1 Overview

The machine tool numerical control system often runs in conjunction with its control object (such as machine tool), and there is a complex structure and functional relationship between the two.