CN111273609B - Method and system for state monitoring and fault judgment of numerical control cutting equipment - Google Patents
Method and system for state monitoring and fault judgment of numerical control cutting equipment Download PDFInfo
- Publication number
- CN111273609B CN111273609B CN202010206705.4A CN202010206705A CN111273609B CN 111273609 B CN111273609 B CN 111273609B CN 202010206705 A CN202010206705 A CN 202010206705A CN 111273609 B CN111273609 B CN 111273609B
- Authority
- CN
- China
- Prior art keywords
- cutting
- cutting machine
- instruction
- fault
- judging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—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
- G05B19/406—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 characterised by monitoring or safety
- G05B19/4065—Monitoring tool breakage, life or condition
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37245—Breakage tool, failure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Numerical Control (AREA)
Abstract
The invention discloses a method and a system for monitoring the state and judging the fault of numerical control cutting equipment, comprising the following steps: the cutting machine comprises a data acquisition system, a state monitoring system and a fault judgment system, wherein the data acquisition system acquires cutting parameters of the cutting machine, converts the cutting parameters into a preset data format and transmits the preset data format to the state monitoring system and the fault judgment system; the data acquisition system also acquires a split and analyzed G instruction corresponding to the cutting machine in real time according to the type of the cutting machine, and transmits the split and analyzed G instruction to the state monitoring system and the fault judgment system; the state monitoring system obtains the running state of the cutting machine according to the received information; and the fault judging system judges whether the cutting machine has a fault according to the received information. The invention ensures the cutting efficiency of the steel plate.
Description
Technical Field
The invention belongs to the field of lean production of shipbuilding enterprises, and particularly relates to a method and a system for state monitoring and fault judgment of numerical control cutting equipment.
Background
The steel plate cutting operation is a key link in the ship building process. The quality of steel plate cutting quality has important influence on the assembly quality, welding quality, coating quality and appearance quality of a ship body, the steel plate cutting method is continuously improved along with the technical progress, the earliest manual cutting to semi-automatic cutting is developed to the current numerical control cutting, and the cutting efficiency and the cutting quality are higher and higher.
The steel plates required by ship body construction are huge in number and are influenced by raw material matching, equipment site resources and process synergy, and the problems that steel plate cutting information cannot be collected in real time, the cutting state cannot be monitored in real time, cutting faults cannot be judged in real time, scientific basis is lacked in production scheduling and the like exist in the production process of a shipbuilding enterprise, so that the execution of a steel plate cutting plan and the cutting operation efficiency are influenced, the buffer storage of cutting parts is increased to a certain extent, and site occupation and fund overstock are caused.
Disclosure of Invention
The purpose of the invention is as follows: the invention provides a method and a system for monitoring the state and judging faults of numerical control cutting equipment, which aim to solve the problems that cutting information cannot be acquired in real time, the cutting state cannot be monitored in real time, the cutting faults cannot be judged in real time and the like in the prior art.
The technical scheme is as follows: the invention provides a method for monitoring the state and judging the fault of numerical control cutting equipment, which is applied to the automatic cutting of the cutting equipment and comprises the following steps:
step 1, splitting and analyzing G instructions of all different types of cutting machines, and storing all the split and analyzed G instructions to a computer; the split and analyzed G instruction comprises a positioning instruction, a moving instruction, a control instruction and a control track;
step 2, cutting for one time by a certain cutting machine, collecting cutting parameters of the cutting machine in real time in the cutting process, converting the collected cutting parameters of the cutting machine into a preset data format, and displaying the preset data format in a computer; the cutting parameters of the cutting machine comprise: position coordinates, moving speed and current action of the cutting machine;
step 4, judging which step the cutting machine executes currently according to the real-time cutting parameters and the split and analyzed G instruction; and obtaining the operating state of the cutting equipment according to the cutting parameters, wherein the operating state comprises the following steps: actual cutting start time, moving/scribing/cutting time, midway pause time and cutting completion time of a certain steel plate;
and 5, judging whether the cutting machine fails according to a track formed by the coordinate positions of the cutting machine acquired during the cutting and the control track of the cutting in the G command.
Furthermore, XML configuration is adopted, and parameters of the cutting machine collected in real time are converted into a preset data format.
Further, the method can be used for preparing a novel materialSpecifically, the step 5 is: the cutting machine performs one cutting, the track is L1, L1 is composed of the coordinate positions of n continuous cutting machines, and L1= { A = { (A) } 1 、A 2 、...A i 、...A n }，A i For the ith coordinate position, i =1,2,3, · n; the trajectory of the cut corresponding to L1 in the G instruction is L2, L2 is composed of Q consecutive ideal coordinate points, L2= { B = { 1 、B 2 、...B q 、...B Q }; point B q Is the q-th ideal coordinate;
two adjacent points in the L2 form a line segment, the L2 consists of Q-1 continuous line segments, and the shortest distance between the n coordinate positions and each line segment is calculated in sequence; and if the shortest distance between the position coordinate I and any line segment in the n coordinate positions is not within the Range of the preset tolerance Range, determining that the cutting machine has a fault.
Further, the tolerance Range is in the Range of [0,10] in mm.
Further, I =10%.
A system for monitoring and judging the state and the fault of numerical control cutting equipment is characterized by comprising the following components: the cutting parameter acquisition system acquires cutting parameters of the cutting machine, converts the cutting parameters into a preset data format and transmits the preset data format to the state monitoring system and the fault judgment system; the data acquisition system also acquires a split and analyzed G instruction corresponding to the cutting machine in real time according to the type of the cutting machine, and transmits the split and analyzed G instruction to the state monitoring system and the fault judgment system; the state monitoring system obtains the running state of the cutting machine according to the received information; and the fault judging system judges whether the cutting machine has a fault according to the received information.
Furthermore, an industrial wireless AP is adopted between the data acquisition system and the state monitoring system for signal transmission; and the data acquisition system and the fault judgment system also adopt an industrial wireless AP for signal transmission.
Has the advantages that: according to the invention, the numerical control cutting equipment in the steel plate workshop is interconnected and intercommunicated, the running information of the numerical control cutting equipment is collected in real time, and the running state and whether the numerical control cutting equipment fails or not are analyzed, so that the utilization rate, working hours and the like of the numerical control cutting equipment can be further analyzed, and the cutting efficiency of the steel plate is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a flow chart of the present invention;
FIG. 3 is a cutting control machine interface;
FIG. 4 is a G instruction before split resolution;
FIG. 5 is a split resolved G instruction.
Detailed Description
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention.
As shown in fig. 1 and fig. 2, the present embodiment provides a method and a system for monitoring the state and determining the fault of a numerical control cutting device, the system includes: the cutting machine comprises a data acquisition system, a state monitoring system and a fault judgment system, wherein the data acquisition system acquires cutting parameters of the cutting machine, converts the cutting parameters into a preset data format and transmits the preset data format to the state monitoring system and the fault judgment system; the data acquisition system also acquires a split and analyzed G instruction corresponding to the cutting machine in real time according to the type of the cutting machine, and transmits the split and analyzed G instruction to the state monitoring system and the fault judgment system; the state monitoring system obtains the running state of the cutting machine according to the received information; the fault judging system judges whether the cutting machine has a fault according to the received information; the data acquisition system comprises a cutting equipment operation parameter acquisition service program and a G instruction acquisition program.
The cutting instruction (G instruction) of the cutting device is matched by intercepting the action data of the actual operation process. The G command name needs to correspond to a unique code for each steel plate in the steel management system.
By developing a running parameter acquisition service program of the numerical control cutting equipment, relevant parameters of a cutting control interface, including a transverse axis position X, a longitudinal axis position Y, current actions (moving, scribing and cutting) and a movement speed, are acquired in real time.
The cutting machine control machine of the data acquisition system is started and operated in a background, the data type to be acquired comprises the information of the name of a G instruction currently executed by the cutting machine, position data, operation type and the like, the acquisition service is supported to operate on the cutting machine control machines of various types which are mainstream in consideration of the fact that the cutting machine control machines are various in brand and a single user may have various types of control machines; in addition, a preset preparation mode is innovatively used for adapting to different cutting controllers, data fed back by different cutting controllers can be unified and standardized into unified data, the operation state of the cutting machine in a factory area can be conveniently and integrally monitored, and the operation interface of the cutting controller is shown in detail in fig. 3.
The innovative use of the preset preparation mode is as follows: using XML configuration, establishing a corresponding relation between the acquired data of the cutting control machine and the data which needs to be standardized into a unified type, wherein the configuration comprises information such as the position and the type of the acquired data, and in acquisition, a service acquires real-time data of a cutting machine control program once per second through a winapi interface according to preset configuration and records the current position; and calculating the running track and running speed of the cutting machine according to the acquired data, and recording the system for analysis.
The numerical control G command controls the actual operation of the cutting machine with a code, the G command is shown in fig. 4, and mainly includes a positioning command (example G00), a moving command (examples G01 and G02), a control command (example M10), and the like, and the G command is read to determine the action and the cutting path that the cutting machine needs to execute currently, but because the cutting commands of the cutting machine manufacturers all have their own standards, the G command acquisition program needs a large development work and needs to be developed in a customized manner when acquiring the correct cutting command, in this embodiment, the command logic is re-split, the key command type is extracted and then the benchmarking is performed with a simple interface for the user to set, so that the function that the unified system is compatible with all the standards of the cutting machine manufacturers is achieved, and a specific configuration interface is shown in fig. 5.
The data acquisition system and the state monitoring system adopt an industrial wireless AP for signal transmission; the data acquisition system and the fault judgment system also adopt an industrial wireless AP to carry out signal transmission; the industrial wireless AP can deal with signal interference in a workshop, and is dustproof and antifouling.
The state monitoring system obtains the accurate running state of the cutting equipment according to the collected parameters and the G instructions of the cutting machine, and comprises the following steps: actual cutting start time, moving/scribing/cutting time, halfway pause time, cutting completion time, and the like of a certain steel plate; the actual algorithm can actually confirm the effective motion track of the current cutting machine by considering the track types (namely moving, scribing and cutting), and the collection service can provide real-time data for monitoring by factory management personnel after summarizing the data of the cutting machine to the application server,
the specific method for judging whether the cutting machine has faults by the fault judging system comprises the following steps:
the method comprises the steps of obtaining an actual running track of the cutting machine and a control track of a cutting instruction, judging which step the actual track runs to the cutting instruction, feeding back real-time cutting information, and judging whether the cutting equipment fails; the specific algorithm is described simply as follows: the actual trajectory L1 of the cutting machine is constituted by n coordinate positions L1= { a = { (a) } 1 、A 2 、...A i 、...A n }，A i For the ith coordinate position, i =1,2,3, · n; the control trajectory of the cutting corresponding to L1 in the G command is L2, L2 is composed of Q consecutive ideal coordinate points, and L2= { B = { B = 1 、B 2 、...B q 、...B Q }; point B q Is the q-th ideal coordinate; only considering the tracks in the same direction after simplifying the running state;
two adjacent points in the L2 form a line segment, the L2 consists of Q-1 continuous line segments, and the shortest distance d between the n coordinate positions and each line segment is calculated in sequence; and if the shortest distance between the coordinate of the I position and any line segment in the n coordinate positions is not within the Range of tolerance Range (I =10% is obtained through experiments, the tolerance Range is [0,10], and the unit is mm), the cutting machine is determined to be in fault. The specific calculation formula of the shortest distance is as follows:
B x 、B x+1 the coordinates are respectively(x 1, y 1), (x 2, y 2), and (x 1 ≠ x 2) B x 、B x+1 All belong to L2
B x 、B x+1 The equation that makes up the straight line segment is:
(y2-y1)x-(x2-x1)y+x2y1-y2x1＝0
let A i The coordinates are (x 0, y 0), A i ∈L1
If A i And B x 、B x+1 The vertical line forming the line segment is positioned at B x 、B x+1 On the line segment formed according to whether it is in B x And B x+1 Let the foot coordinates be Cx = (x 3, y 3).
Segment BxCx + segment CxBx +1= segment BxBx +1
And is provided with
A i To B x 、B x+1 The shortest distance of the line segments is the length of the perpendicular line, and is set as d:
if A i And B x 、B x+1 The vertical line forming the line segment is at B x 、B x+1 Outside the line segment, compare A i To B x A line segment of i To B x+1 The length of the line segment(s) is short, and the shortest of the two line segments is the point A i To B x 、B x+1 The shortest distance of the line segments.
In addition, the actual motion track needs to record the cutting speed, and the current real-time speed is calculated according to the current position and the time difference between the last second recorded position.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
Claims (4)
1. A method for monitoring the state and judging the fault of a numerical control cutting device is applied to the automatic cutting of the cutting device and is characterized by comprising the following steps:
step 1, splitting and analyzing G instructions of all different types of cutting machines, and storing all the split and analyzed G instructions to a computer; the G instruction after splitting and analysis comprises a positioning instruction, a moving instruction, a control instruction and a control track;
step 2, collecting cutting parameters of the cutting machine in real time in the process of cutting for one time by the cutting machine, converting the collected cutting parameters of the cutting machine into a preset data format, and displaying the preset data format in a computer; the cutting parameters of the cutting machine comprise: position coordinates, moving speed and current action of the cutting machine;
step 3, reading the G instruction after the splitting and the analyzing of the cutting machine in real time, and displaying the G instruction in a computer;
step 4, judging which step in the G instruction the cutting machine executes currently according to the real-time cutting parameters and the split and analyzed G instruction; and obtaining the operating state of the cutting equipment according to the cutting parameters, wherein the operating state comprises the following steps: actual cutting start time, moving/scribing/cutting time, midway pause time and cutting completion time of the steel plate;
step 5, judging whether the cutting machine fails according to a track formed by the coordinate positions of the cutting machine acquired during the cutting and a control track of the cutting in the G command;
the step 5 specifically comprises the following steps: the cutting machine performs one cutting, the track is L1, L1 is composed of the coordinate positions of n continuous cutting machines, and L1= { A = { (A) } 1 、A 2 、…A i 、…A n }，A i Is the ith coordinate position, i =1,2,3, ·, n; with cutting in G command corresponding to L1The trajectory is L2, L2 is composed of Q consecutive ideal coordinate points, L2= { B = { 1 、B 2 、…B q 、…B Q }; point B q Is the q-th ideal coordinate;
two adjacent points in the L2 form a line segment, the L2 consists of Q-1 continuous line segments, and the shortest distance between the n coordinate positions and each line segment is calculated in sequence; and if the shortest distance between the position coordinate of the I position and any line segment in the n coordinate positions is not within the Range of the preset tolerance Range, determining that the cutting machine has a fault.
2. The method for monitoring the state and judging the fault of the numerical control cutting equipment according to the claim 1, characterized in that XML configuration is adopted to convert the parameters of the cutting machine collected in real time into a preset data format.
3. The method for monitoring the state and judging the fault of the numerical control cutting equipment as claimed in claim 1, wherein the Range of the tolerance Range is [0,10] and the unit is mm.
4. The method for monitoring the state and judging the faults of the numerical control cutting equipment as claimed in claim 1, wherein I =10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206705.4A CN111273609B (en) | 2020-03-23 | 2020-03-23 | Method and system for state monitoring and fault judgment of numerical control cutting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010206705.4A CN111273609B (en) | 2020-03-23 | 2020-03-23 | Method and system for state monitoring and fault judgment of numerical control cutting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111273609A CN111273609A (en) | 2020-06-12 |
| CN111273609B true CN111273609B (en) | 2023-03-28 |
Family
ID=70999860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010206705.4A Active CN111273609B (en) | 2020-03-23 | 2020-03-23 | Method and system for state monitoring and fault judgment of numerical control cutting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111273609B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210719A (en) * | 2021-04-23 | 2021-08-06 | 中船工业互联网有限公司 | Method and device for inquiring cutting instruction of marine steel plate |
| CN113703396B (en) * | 2021-07-26 | 2023-05-09 | 北京市机械施工集团有限公司 | Intelligent upgrading method of numerical control cutting equipment based on intelligent terminal |
| CN118212188A (en) * | 2024-03-12 | 2024-06-18 | 广东兴艺数字印刷股份有限公司 | Cartoon card automatic detection control method, system, equipment and medium |
| CN118321991B (en) * | 2024-06-17 | 2024-09-06 | 酷佧切削技术(四川)有限公司 | Intelligent monitoring system and method for operation safety of automatic cutting machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023615A (en) * | 2010-10-25 | 2011-04-20 | 武汉华中数控股份有限公司 | Command sequence-based method for displaying processing state information of digital control machine tool |
| CN104483902A (en) * | 2014-12-05 | 2015-04-01 | 华中科技大学 | Running state data recording and replaying method before fault of numerically-controlled machine tool |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323633A (en) * | 2016-10-28 | 2017-01-11 | 华中科技大学 | Diagnosis method for feed shaft assembly faults based on instruction domain analysis |
| JP6898079B2 (en) * | 2016-11-16 | 2021-07-07 | 芝浦機械株式会社 | Machine tools and their control methods |
| CN109656196A (en) * | 2018-12-27 | 2019-04-19 | 西安交通大学 | Digital control system all-round property testing method and apparatus |
-
2020
- 2020-03-23 CN CN202010206705.4A patent/CN111273609B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023615A (en) * | 2010-10-25 | 2011-04-20 | 武汉华中数控股份有限公司 | Command sequence-based method for displaying processing state information of digital control machine tool |
| CN104483902A (en) * | 2014-12-05 | 2015-04-01 | 华中科技大学 | Running state data recording and replaying method before fault of numerically-controlled machine tool |
Non-Patent Citations (1)
| Title |
|---|
| 数控机床故障排除方法及应用;《制造技术与机床》;《制造技术与机床》;20070402;正文第108-110页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111273609A (en) | 2020-06-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111273609B (en) | Method and system for state monitoring and fault judgment of numerical control cutting equipment | |
| CN105892423A (en) | Intelligent-terminal-based intelligent work ticket system for digital workshop | |
| JPS6040043B2 (en) | Method and apparatus for performing monitoring and diagnostic operations on computer-controlled machine tools | |
| CN102411364A (en) | IoT (Internet of Things) service terminal for factory | |
| CN112132423A (en) | Production management method and system for rail-movable beam-making pedestal | |
| CN111232021A (en) | Electronic hook plan execution system for shunting operation of railway station | |
| CN114742436A (en) | Enterprise management system based on cloud computing and Internet of things | |
| CN116542502B (en) | Building construction period optimization system and method based on convolutional neural network | |
| CN101901009A (en) | Assembly line work data acquisition and control system | |
| CN111694318A (en) | Method for evaluating five-axis linkage precision of numerical control machine tool | |
| CN101470441A (en) | Wireless tool control system and method for vehicle assembly and fabrication technique | |
| CN110049110A (en) | A kind of cloud intelligence system | |
| US10126728B2 (en) | Method and system for collecting via a MES system time-stamps of working-statuses | |
| CN111382932B (en) | Inner hole quality control method and system | |
| CN114218433A (en) | Abnormal reproduction method of AGV (automatic guided vehicle) running system and AGV running system | |
| CN105046347A (en) | Optimizing method for oil-and-gas field condition data acquisition | |
| CN105139114A (en) | Automatic compiling method for annual operation mode of power grid in district or county | |
| CN118192476B (en) | Automobile body connection process monitoring device, equipment and system | |
| CN110046830A (en) | A kind of system of numerical control door hinge machine | |
| KR20120097771A (en) | Systems for measuring production data and working progress of panels of ship blocks in shipbuilding | |
| US11511380B2 (en) | Method for capturing tool path and device thereof | |
| CN201422141Y (en) | Data acquisition communication terminal system for assembly line work | |
| CN117391552B (en) | Digital twinning-based building component quality control system and method | |
| CN109623491B (en) | Machine tool machining self-adaptive data acquisition method based on part profile morphology | |
| CN116830054A (en) | Information processing device, information processing program, and information processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |