CN109782693A - The Common Diagnostic Methods of fault of numerical control machine tool - Google Patents
The Common Diagnostic Methods of fault of numerical control machine tool Download PDFInfo
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- CN109782693A CN109782693A CN201711127209.4A CN201711127209A CN109782693A CN 109782693 A CN109782693 A CN 109782693A CN 201711127209 A CN201711127209 A CN 201711127209A CN 109782693 A CN109782693 A CN 109782693A
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- control system
- digital control
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- lathe
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Abstract
The invention discloses the Common Diagnostic Methods of fault of numerical control machine tool, include: a) check whether lathe each section working condition is in normal condition (such as each coordinate shaft position, main shaft state, tool magazine, position of manipulator etc.), whether there is or not police instructions for each electric control gear (such as digital control system, temperature control device, lubricating arrangement)；B) instrument inspection technique uses conventional electrical instrument, to each group AC and DC power supply voltage；C) function program method of testing is G, M, S, T, F function of digital control system to be weaved into a Functional Test Procedure with programming method, and be stored on corresponding medium；D) signal and police instruction analytic approach；F) Interface status inspection technique.Machine failure diagnostic method of the invention; the rapidity of lathe initial failure early warning and the accuracy requirement of diagnosis are met, the accuracy and reliability of diagnosing faults of numerical control machine is improved, reduces downtime; maintenance cost is effectively reduced, the production efficiency of numerically-controlled machine tool is improved.
Description
Technical field
The present invention relates to the Common Diagnostic Methods of fault of numerical control machine tool, are related to a kind of by macroscopic examination, vibration mutation value
Instrument inspection and function program method of testing carry out fault diagnosis diagnosing faults of numerical control machine method.
Background technique
Any part of numerically-controlled machine tool breaks down, and all may cause machining accuracy reduction or even lathe is shut down, produced
It pauses, is particularly in the high-grade lathe at production line key core position, it will bring great shutdown to damage to the entire production line
It loses, not only causes huge economic loss, personal safety can be also injured when serious.
Summary of the invention
The purpose of the present invention is to provide the Common Diagnostic Methods of fault of numerical control machine tool, present invention aim to address above
The deficiency and defect of technology.
Method of the invention, comprises the technical steps that:
A) check lathe each section working condition whether be in normal condition (such as each coordinate shaft position, main shaft state, tool magazine,
Position of manipulator etc.), whether there is or not police instructions for each electric control gear (such as digital control system, temperature control device, lubricating arrangement)；Fault diagnosis
Algorithm is realized by following steps: overall to check whether lathe each section working condition is in normal condition (such as each coordinate
Shaft position, main shaft state, tool magazine, position of manipulator etc.), each electric control gear (such as digital control system, temperature control device, lubricating arrangement)
Whether there is or not police instruction, part is it is important to note that whether the component and route of observation circuit board have phenomena such as burn, slight crack, circuit
Whether have short circuit, open circuit on plate, phenomena such as chip poor contact, for the circuit board repaired, more it is noted that whether there is or not Short Item,
Situations such as wrong part and broken string；It is to touch again, the installation shape of each main circuit board of touch can be passed through under complete machine outage condition
Condition, the grafting situation of each connector assembly, each power and signal conductor (such as servo with motor contactor wiring) couple situation
The reason of having found that it is likely that failure.
B) instrument inspection technique uses conventional electrical instrument, to each group AC and DC power supply voltage；With each electricity of general-purpose table look-up
Source situation, and the measurement to the coherent signal state measurement point being arranged on certain circuit boards observe relevant arteries and veins with oscillograph
The amplitude of dynamic signal, phase are even with and without searching trouble location and the reason etc. in PLC program with PLC programmable device.
C) function program method of testing is that G, M, S, T, F function of digital control system are weaved into a function test with programming method
Program, and be stored on corresponding medium；Machine tooling cause waste product and can not determine for the moment programming operation it is improper or by
Caused by digital control system failure；There is random faule in digital control system.It is difficult to distinguish external interference for the moment or system is steady
When qualitative difference.
D) signal and police instruction analytic approach；Hardware alarms indicate that this refers to including servo-system, digital control system
Each electronics, various states and malfunction indicator lamp on electrical installation, in conjunction with LED status and corresponding function declaration
Know instruction content and failure cause and method for removing.The foregoing system software of software police instruction, PLC program and processing
Failure in program is typically provided with alarm indication, and the corresponding diagnosis instruction manual of alarm number control according to display can be known
Possible failure cause and troubleshooting methodology.
F) Interface status inspection technique.PLC is mostly fully integrated therein by Interface status inspection technique Modern NC, and CNC
A series of then mutual communication link in the form of interface signals between PLC.Some failures be and interface signal mistake or lose phase
It closes, what these interface signals had can have indicator light to show on corresponding interface board and input/output board, and what is had can lead to
Simple operations are crossed to show on the screen of the crt, and all interface signals can be recalled with PLC programmable device.This inspection method
It is required that maintenance personal should be familiar with the interface signal of this lathe, it is familiar with the application of PLC programmable device again.
Specific embodiment
The present invention provides following technology and comprises the technical steps that:
A) check lathe each section working condition whether be in normal condition (such as each coordinate shaft position, main shaft state, tool magazine,
Position of manipulator etc.), whether there is or not police instructions for each electric control gear (such as digital control system, temperature control device, lubricating arrangement)；B) instrument
Inspection technique uses conventional electrical instrument, to each group AC and DC power supply voltage；C) function program method of testing is by digital control system
G, M, S, T, F function weave into a Functional Test Procedure with programming method, and are stored on corresponding medium；D) signal and alarm
Indicate analytic approach；F) Interface status inspection technique.Herein.It for those skilled in the art, still can be to aforementioned
Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, all in this hair
Within bright spirit and principle, any modification, equivalent replacement, improvement and so on should be included in protection scope of the present invention
Within.
Claims (6)
1. the Common Diagnostic Methods of fault of numerical control machine tool, it is characterised in that: comprise the technical steps that:
A) check lathe each section working condition whether be in normal condition (such as each coordinate shaft position, main shaft state, tool magazine,
Position of manipulator etc.), whether there is or not police instructions for each electric control gear (such as digital control system, temperature control device, lubricating arrangement)；
B) instrument inspection technique uses conventional electrical instrument, to each group AC and DC power supply voltage；
C) function program method of testing is that G, M, S, T, F function of digital control system are weaved into a function test journey with programming method
Sequence, and be stored on corresponding medium；
D) signal and police instruction analytic approach；
F) Interface status inspection technique.
2. fault diagnosis algorithm described in the step a) is realized by following steps according to claim 1: overall
Check whether lathe each section working condition is in normal condition (such as each coordinate shaft position, main shaft state, tool magazine, manipulator
Position etc.), each electric control gear (such as digital control system, temperature control device, lubricating arrangement) whether there is or not police instruction, part it is important to note that
Whether the component and route for observing circuit board have phenomena such as burn, slight crack, whether have short circuit, open circuit on circuit board, and chip connects
Phenomena such as bad is touched, for the circuit board repaired, more it is noted that situations such as whether there is or not Short Item, wrong part and broken strings；It is touching again
It touches, it can be by touching the installation situation of each main circuit board, the grafting situation of each connector assembly, each under complete machine outage condition
Power and signal conductor (such as servo with motor contactor wiring) couple situation come the reason of having found that it is likely that failure.
3. step b) each power conditions of general-purpose table look-up according to claim 1, and to being set on certain circuit boards
The measurement for the coherent signal state measurement point set, with oscillograph observe the amplitude of relevant fluctuating signal, phase even with and without,
Trouble location and the reason etc. in PLC program are searched with PLC programmable device.
4. according to claim 1 the step c) machine tooling cause waste product and can not determine for the moment be programming operation not
When, or due to caused by digital control system failure；There is random faule in digital control system, and being difficult to distinguish for the moment is external interference,
Or when system stability difference.
5. the step d) hardware alarms indicate that this refers to including servo-system, digital control system according to claim 1
Each electronics, various states and malfunction indicator lamp on electrical installation, in conjunction with LED status and corresponding function declaration
Know instruction content and failure cause and method for removing, the foregoing system software of software police instruction, PLC program and processing
Failure in program is typically provided with alarm indication, and the corresponding diagnosis instruction manual of alarm number control according to display can be known
Possible failure cause and troubleshooting methodology.
6. PLC is mostly integrated in it by step f) the Interface status inspection technique Modern NC according to claim 1
In, and a series of then mutual communication link in the form of interface signals between CNC and PLC, some failures are and interface signal mistake
Or loss is relevant, what these interface signals had can have indicator light to show on corresponding interface board and input/output board, have
Can be shown on the screen of the crt by simple operations, and all interface signals can be recalled with PLC programmable device, this
Inspection method requires maintenance personal that should be familiar with the interface signal of this lathe, is familiar with the application of PLC programmable device again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127209.4A CN109782693A (en) | 2017-11-15 | 2017-11-15 | The Common Diagnostic Methods of fault of numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711127209.4A CN109782693A (en) | 2017-11-15 | 2017-11-15 | The Common Diagnostic Methods of fault of numerical control machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN109782693A true CN109782693A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711127209.4A Withdrawn CN109782693A (en) | 2017-11-15 | 2017-11-15 | The Common Diagnostic Methods of fault of numerical control machine tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805531A (en) * | 2021-09-22 | 2021-12-17 | 吉林省齐智科技有限公司 | Full-automatic unattended early warning method for numerical control machine tool |
-
2017
- 2017-11-15 CN CN201711127209.4A patent/CN109782693A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113805531A (en) * | 2021-09-22 | 2021-12-17 | 吉林省齐智科技有限公司 | Full-automatic unattended early warning method for numerical control machine tool |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190521 |
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| WW01 | Invention patent application withdrawn after publication |