CN102566504B - General diagnosing and repairing tool for numerical control machine - Google Patents
General diagnosing and repairing tool for numerical control machine Download PDFInfo
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- CN102566504B CN102566504B CN201210017375.XA CN201210017375A CN102566504B CN 102566504 B CN102566504 B CN 102566504B CN 201210017375 A CN201210017375 A CN 201210017375A CN 102566504 B CN102566504 B CN 102566504B
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- image acquisition
- acquisition information
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Abstract
The invention discloses a general diagnosing and repairing tool for a numerical control machine, which is characterized by mainly comprising an image sensor, an image acquisition information processing unit, two wireless receiving and transmitting modules and a light source, wherein the image sensor is connected with the image acquisition information processing unit through a first kind of bus, one wireless receiving and transmitting module is connected with the image acquisition information processing unit through an RS232 bus, the light source is connected with the image acquisition information processing unit through a cable, the other wireless receiving and transmitting module is connected with a digital control system through a second kind of bus; and the image sensor adopts a matrix CCD (Charge Coupled Device) camera or CMOS (Complementary Metal-Oxide-Semiconductor) camera, the image acquisition information processing unit comprises an embedded ARM or small PC, and an image acquisition software and an image processing software are configured in the image acquisition information processing unit.
Description
Technical field
The present invention relates to numerically-controlled machine, Image Information Processing and industrial control technology, be specially a kind of numerically-controlled machine universal diagnostic fix tool.
Background technology
Numerically-controlled machine is a kind of modern electromechanical equipment mechanical, electrical, liquid that integrates, and is the modern important equipment of manufacturing in processing.The precision of general NC machine tooling can reach micron order.Numerically-controlled machine carries out after a period of time process, owing to the reason such as wearing and tearing between tool sharpening wearing and tearing, machine tool component, need artificial quantitative check cutter, or detect workpiece accurate to dimension, be used for determining whether cutter or machine tooling parts occur wearing and tearing, need to regularly change cutter or need to carry out the detection of machine tool accuracy, otherwise will occur workpiece processing error, causing the accidents such as useless part or cracking of cutter.
Cutter is changed in timing can prevent that workpiece from scrapping preferably.But occur that fault between machine tool component etc. cannot repair, and be also a kind of comparatively phenomenon of waste to the discarded of the cutter that do not wear and tear; Manual intervention tool wear situation and the judgement of lathe abrasion condition, often need to shut down, dismounting cutter, or carry out the dimensional measurement of workpiece, and stop the running of lathe, will expend a large amount of machine tooling man-hours, reduce the working (machining) efficiency of lathe.
Summary of the invention
For the deficiencies in the prior art, the technical matters that quasi-solution of the present invention is determined is, a kind of numerically-controlled machine universal diagnostic fix tool is provided, and the problems such as tool wear can be found and get rid of to this instrument in time, improves machining precision and the product quality of numerically-controlled machine.
The technical scheme that the present invention solve the technical problem is, design a kind of numerically-controlled machine universal diagnostic fix tool, it is characterized in that this diagnosis instrument mainly comprises imageing sensor, image acquisition information process unit, two radio receiving transmitting modules and light source, imageing sensor is connected with image acquisition information process unit by first kind bus, a radio receiving transmitting module is connected with image acquisition information process unit by RS232 bus, light source is by cable and image acquisition information processing single connection, another radio receiving transmitting module is connected with digital control system by Equations of The Second Kind bus, imageing sensor adopts Array CCD Camera or cmos camera, and image acquisition information process unit is made up of embedded-type ARM machine or small-sized PC, internal configurations image acquisition software and image processing software.
Compared with the existing technology, numerically-controlled machine universal diagnostic fix tool of the present invention becomes one imageing sensor, image acquisition and processing unit and light source, thereby have the advantages that independently to carry out image acquisition and processing analysis, form a complete independently survey instrument, utilize a radio receiving transmitting module, compensation variable can be sent in digital control system, be realized the workpiece diagnosis function in machine tooling process; The form that diagnosis tool design of the present invention is a cutter simultaneously, can be fixed on handle of a knife, and convenient mounting and clamping is called fast, and versatility is good.
Brief description of the drawings
Fig. 1 is the structure composition schematic diagram of a kind of embodiment of numerically-controlled machine universal diagnostic fix tool of the present invention;
Fig. 2 is the catenation principle figure of a kind of embodiment of numerically-controlled machine universal diagnostic fix tool of the present invention;
Fig. 3 is the software detection FB(flow block) of a kind of embodiment of numerically-controlled machine universal diagnostic fix tool of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail.Embodiment, only for describing the present invention in detail, does not limit the application's claim protection domain.
The numerically-controlled machine universal diagnostic fix tool of the present invention's design (is called for short diagnosis instrument, referring to Fig. 1-3), it is characterized in that this diagnosis instrument mainly comprises imageing sensor 1, image acquisition information process unit 2, radio receiving transmitting module 3 and another radio receiving transmitting module 5 and a light source 4; Imageing sensor 1 is connected with image acquisition information process unit 2 by first kind bus, a radio receiving transmitting module 3 is connected with image acquisition information process unit 2 by RS232 bus, light source 4 is connected with image acquisition information process unit 2 by cable, and another radio receiving transmitting module 5 is connected with digital control system by Equations of The Second Kind bus; Imageing sensor 1 adopts Array CCD Camera or cmos camera; Image acquisition information process unit 2 is made up of embedded-type ARM machine or small-sized PC, internal configurations image acquisition software and image processing software.
The light source 4 of diagnosis instrument of the present invention provides illumination for Array CCD Camera shooting, and Array CCD Camera is connected with image acquisition information process unit 2 by first kind bus, is used for taking the image of workpiece etc.; Image acquisition and processing unit 2 is for the collection of view data, and according to the image type of taking, fault identified and judged, selects different image processing algorithms to diagnosing malfunction, and image is carried out to analyzing and processing; Then result is delivered to a radio receiving transmitting module 3; Detect for wear-out failure, need to take woolly grain time, will change camera lens, with the clear texture image that photographs.Image acquisition information process unit 2 internal configurations image acquisition softwares and image processing software can receive external command, carry out the soft triggering of image acquisition, or by hardware, camera are carried out to image acquisition and firmly trigger; The image collecting carries out image pre-service, feature extraction, the processing such as pattern-recognition by image processing module.Result sends to another radio receiving transmitting module 5 being connected with digital control system in time by a radio receiving transmitting module 3, and imports into by the fieldbus of communication module in the cutter benefit variable of digital control system.A radio receiving transmitting module 3 is connected by RS232 bus with image acquisition information process unit 2, another radio receiving transmitting module 5 is connected with digital control system by Equations of The Second Kind bus, for transmission or the exchange of information, another radio receiving transmitting module 5 being connected with digital control system receives the data that radio receiving transmitting module 3 sends that are connected with image acquisition and processing unit 2, and pass to digital control system, or contrary, the instruction of sending in digital control system is sent to image acquisition and processing unit 2.Described first kind bus adopts concentric cable, USB, Industrial Ethernet, 1394 live wires or camlink bus according to different images sensor interface.Described Equations of The Second Kind bus adopts the communication form of fieldbus, profibus-dp, profinet or Industrial Ethernet according to different NC system type; For the digital control system that third party's communication interface is not provided, adopt the communication mode of PLC I/O point analogue communication parallel bus.
The further feature of diagnosis instrument of the present invention is, described imageing sensor 1, image acquisition information process unit 2, radio receiving transmitting module 3 and light source 4 are assembled into the cutter form of integrative-structure.The diagnosis instrument of this cutter form can be fixed on handle of a knife as universal cutter, can from tool magazine, call in work cutter spacing at any time as required, or be fixed on cutter tower and call at any time and be transformed in work cutter spacing.
Diagnosis instrument of the present invention can be used on multiple numerical control machine tool, and embodiment is for numerically controlled lathe (referring to Fig. 1), and other numerically-controlled machines also can similarly use.The numerically controlled lathe of the present embodiment diagnosis tool applications is specially Siemens 840 D in NC lathe, and digital control system is Siemens 840D digital control system in open type in other words.Described imageing sensor 1 adopts Array CCD Camera, Array CCD Camera is connected with embedded-type ARM machine by RS232 bus with a described radio receiving transmitting module 3 by usb bus, image acquisition information process unit 2 (embedded-type ARM machine) is by externally fed, or battery-powered.Another radio receiving transmitting module 5 is connected with the PLC of digital control system by profile-dp bus, realizes the data transmission between digital control system and image acquisition information process unit 2, comprises the transmitting-receiving of steering order and the transmitting-receiving of result.
The ultimate principle of diagnosis instrument of the present invention is, be directed in numerically-controlled machine processing because of cutter, the mismachining tolerance that the reasons such as lathe wearing and tearing cause, gather the texture on processing work surface by imageing sensor 1, processing work, the image of machining benchmark and numerically-controlled machine moving component etc., by the analysis software module in image acquisition information process unit 2, the image gathering is carried out to pattern-recognition, the processing such as geometric element evaluation, judge the degree of wear of cutter, whether workpiece size there is deviation, whether machine tool motion component there is failure exception etc., and fault is passed to digital control system by grade point, determined the cutter compensation increment of processing by digital control system experts database, carry out tool changing and stopping alarm etc., improve processing safety, machining precision, avoid processing the generation of useless part.Obviously,, by adjusting imageing sensor 1 coverage and analysis software, instrument of the present invention can be used for detecting other failure messages of numerically-controlled machine.
Another radio receiving transmitting module 5 being connected with numerically-controlled machine interface receives after signal, forward the data to numerically-controlled machine interface PLC end, adopt multiple communication form according to different NC system type, comprise fieldbus, profibus-dp, profinet or Industrial Ethernet, for the digital control system that third party's communication interface is not provided, adopt the communication mode of PLC I/O point analogue communication parallel bus, the result data of the image acquisition information process unit 2 receiving are sent in the PLC of CNC, the PLC part of CNC is write the trapezoid figure program of data receiver according to used communication mode, processing result image is received to PLC and completes NC-PLC data communication function by CNC internal bus, data are write in NC variable, being embodied as to write in access customer R variable of universality uses for numerical control program, also can write cutter according to specific requirement and mend the system variables such as variable, use imageing sensor to realize integrated cutter benefit repair function thereby complete.
The compensating signal of diagnosis instrument of the present invention enters digital control system by the interface PLC end of numerically-controlled machine, utilizes the R variable of amendment digital control system inside or cutter to mend the machining deviation compensation that the modes such as variable realize lathe.In use, do not need the operating instruction of modification and processing program and numerically-controlled machine itself, only need to add corresponding data input/output routine to original ladder diagram of the PLC of numerically-controlled machine (Programmable Logic Controller) can realize deviation repair function.Therefore the present invention does not make a difference to original digital control system and job sequence, only need to increase some minor attachments, has reduced prosthetic device cost, has improved machining precision, and has had very strong versatility.
When diagnosis instrument of the present invention uses, program software specifically comprises the following steps (referring to Fig. 3):
1. first diagnosis instrument is arranged on handle of a knife, is then positioned in tool magazine or cutter tower;
2. stop today's numerical control job sequence, call tool changing instruction, instrument is adjusted and installed to work cutter spacing;
3. assign the instruction of numerical control program condition monitoring, by a radio receiving transmitting module 3 and another radio receiving transmitting module 5, steering order is sent to image acquisition information process unit 2;
4. diagnosis instrument enters behind working position, and image acquisition information process unit 2 is opened image collecting function and image focusing program; Not focusing, sends by radio receiving transmitting module 3 instruction that drives digital control system work;
5. digital control system is received after work order, drives diagnosis instrument to move to workpiece top, and drives Array CCD Camera 1 to move closer to workpiece, until focused; Otherwise get back to previous step;
6. image acquisition information process unit 2 gathers picture rich in detail, and carry out image processing and analyzing, obtain tool wear degree, convert wearing and tearing equivalent value to, then be sent to by a radio receiving transmitting module 3 and another radio receiving transmitting module 5 in the cutter benefit variable of 840D digital control system;
7. complete after tool wear monitoring program, start numerical control repair procedure, repair operation to detecting surface of the work, carry out tool changing, utilize the cutter benefit value of current amendment, carry out zero feeding cut, or next step processing, until complete workpiece processing reparation task.
The present invention does not address part and is applicable to prior art.
Claims (4)
1. a method of utilizing numerically-controlled machine universal diagnostic fix tool to process and repair, it is characterized in that this diagnosis instrument mainly comprises imageing sensor, image acquisition information process unit, two radio receiving transmitting modules and light source, imageing sensor is connected with image acquisition information process unit by first kind bus, the first radio receiving transmitting module (3) is connected with image acquisition information process unit by RS232 bus, light source is connected with image acquisition information process unit by cable, and the second radio receiving transmitting module is connected with digital control system by Equations of The Second Kind bus; Imageing sensor adopts area array CCD video camera or CMOS video camera, image acquisition information process unit is become by embedded-type ARM machine or small-sized PC mechanism, internal configurations image acquisition module and image processing module, when described diagnosis instrument uses, specifically comprise the following steps:
1) first diagnosis instrument is arranged on handle of a knife, is then positioned in tool magazine or cutter tower;
2) stop today's numerical control procedure of processing, call tool changing instruction, diagnosis instrument is adjusted and installed to work cutter spacing;
3) assign numerical control system running status and detect instruction, by the first radio receiving transmitting module and the second radio receiving transmitting module, steering order is sent to image acquisition information process unit;
4) diagnosis instrument enters behind working position, and image acquisition information process unit is opened image collecting function and image focus function; Not focusing, sends by the first radio receiving transmitting module (3) instruction that drives digital control system work;
5) digital control system is received after work order, drives diagnosis instrument to move to workpiece top, and actuated camera moves closer to workpiece, until focused; Otherwise get back to previous step;
6) image acquisition information process unit gathers picture rich in detail, and carry out image processing and analyzing, obtain tool wear degree, convert wearing and tearing equivalent value to, then be sent to by the first radio receiving transmitting module (3) and the second radio receiving transmitting module (5) in the cutter benefit variable of digital control system;
7) complete after tool wear monitoring step, start numerical control and repair step, repair operation to detecting surface of the work, carry out tool changing, utilize the cutter benefit value of current amendment, carry out zero feeding cut, or next step processing, until complete workpiece processing reparation task.
2. method according to claim 1, is characterized in that described first kind bus adopts concentric cable, USB, Industrial Ethernet, 1394 live wires or camlink bus according to different images sensor interface.
3. method according to claim 1, is characterized in that described Equations of The Second Kind bus adopts the communication form of fieldbus, profibus-dp, profinet or Industrial Ethernet according to different NC system type; For the digital control system that third party's communication interface is not provided, adopt the communication mode of PLC I/O point analogue communication parallel bus.
4. method according to claim 1, is characterized in that described imageing sensor, image acquisition information process unit, the first radio receiving transmitting module (3) and light source are assembled into the cutter form of integrative-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017375.XA CN102566504B (en) | 2012-01-19 | 2012-01-19 | General diagnosing and repairing tool for numerical control machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210017375.XA CN102566504B (en) | 2012-01-19 | 2012-01-19 | General diagnosing and repairing tool for numerical control machine |
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| CN102566504A CN102566504A (en) | 2012-07-11 |
| CN102566504B true CN102566504B (en) | 2014-08-13 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014084376A1 (en) | 2012-11-30 | 2014-06-05 | コマツＮｔｃ株式会社 | Machine tool |
| CN103076763A (en) * | 2012-12-26 | 2013-05-01 | 山东拓维数控设备有限公司 | Real-time detection system for state of cutting tool of numerical control machine tool |
| CN103056727A (en) * | 2013-01-14 | 2013-04-24 | 南京格蕾飞信息技术有限公司 | Machine vision cutter of CNC (computerized numeral control) machine tool |
| CN104117876B (en) * | 2013-04-28 | 2018-08-03 | 郑州大学 | A kind of method and its equipment for checking cutting tool and whether breaking or wearing out |
| JP6174906B2 (en) * | 2013-05-23 | 2017-08-02 | 中村留精密工業株式会社 | Self-diagnosis of machine and correction method of machine accuracy |
| DE102016210770A1 (en) * | 2016-06-16 | 2017-12-21 | Robert Bosch Gmbh | A method of assisting an operator of a portable power tool |
| CN107911802B (en) * | 2017-12-01 | 2020-10-27 | 中国电子科技集团公司第二十二研究所 | Wireless communication system and method applied to shield machine hob state monitoring |
| CN107877261A (en) * | 2017-12-14 | 2018-04-06 | 深圳市塔雷斯测量设备有限公司 | A kind of lathe optical positioning calibrator |
| CN108972376B (en) * | 2018-07-04 | 2020-12-01 | 郑州磨料磨具磨削研究所有限公司 | Thing networking emery wheel |
| CN109324058A (en) * | 2018-10-26 | 2019-02-12 | 天津工业大学 | A kind of detection device for tool wear |
| CN110280969A (en) * | 2019-07-18 | 2019-09-27 | 佛山科学技术学院 | A kind of internal grinder remanufactures restorative procedure |
| CN112846941A (en) * | 2019-11-28 | 2021-05-28 | 中国商用飞机有限责任公司 | Machine tool with notch appearance detection function and notch appearance detection method |
| CN111036947A (en) * | 2019-12-06 | 2020-04-21 | 深圳先进技术研究院 | Tool rest assembly of machine tool equipment, tool assembly and machine tool equipment |
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