CN101332525B - Electrolysis-jet processing penetration monitoring treatment process - Google Patents
Electrolysis-jet processing penetration monitoring treatment process Download PDFInfo
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- CN101332525B CN101332525B CN 200810134881 CN200810134881A CN101332525B CN 101332525 B CN101332525 B CN 101332525B CN 200810134881 CN200810134881 CN 200810134881 CN 200810134881 A CN200810134881 A CN 200810134881A CN 101332525 B CN101332525 B CN 101332525B
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- 238000012545 processing Methods 0.000 title claims abstract description 43
- 238000012544 monitoring process Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000035515 penetration Effects 0.000 title claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 230000000007 visual effect Effects 0.000 claims abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 11
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 229910045601 alloy Inorganic materials 0.000 description 1
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Abstract
The invention relates to a treatment method for processing, penetrating and monitoring an electro-stream. The treatment method comprises the steps as follows: (1) a contact liquid level sensor is fixed at the slant upper part of an electrode terminal; (2) a digital camera is provided inside or outside a working case and used for real-time monitoring of a processing area; (3) in the processing course, a fluid backflow physical phenomenon is taken as a processing and monitoring source while the electrode enters the workpiece; the contact liquid level sensor is used for collecting liquid level signals, and the liquid level signals are taken as one of the processing and penetrating judgment conditions; meanwhile the digital camera is used for real-time collection of visual images; the condition that the image changes are lower than the preset value is taken as a second penetrating judgment condition; (4) a programmable controller comprehensively judges the aperture penetration based on the first and the second conditions; and the system automatically turns to the processing of next aperture. By adopting the monitoring technology, the automation of the electro-stream processing is realized, error in the electro-stream processing course is greatly decreased, the manual auxiliary processing time is reduced by 30%, the processing efficiency is considerably improved, the labor intensity is reduced, and the risk caused by the manual monitoring misoperation is eliminated.
Description
Technical field
The present invention relates to a kind of electrolysis-jet processing penetration monitoring treatment process, the automatic monitoring that is used for blade of aviation engine electricity liquid Shu Xiaokong process is processed, and belongs to the processing monitoring technical field.
Background technology
The aperture of electricity liquid Shu Jiagong without recast layer, non-microcracked, without the heat affected area, thereby in the height that adopts single crystal alloy pushes away manufacturing than aero-engine working-blade, the cold working aperture technology that electric liquid Shu Chengwei is necessary.Along with the raising of engine cold effect, the distribution density of blade surface aperture also further improves, and the quantity of aperture processing is progression to be increased, so, improving the efficient of electric liquid Shu Jiagong, the demand that makes it to become High Efficient Machining Technology is very urgent.At present, when processing has the aperture of workpiece (for example aero-engine working-blade) of internal cavity structures, require when aperture processing penetrates from technique, in time sender sends transposition processing instruction to finish an automated procedure to control system by control system.Penetrate on the Signal Collection Technology at electric liquid bundle processing work, it is reported that the method for external employing high-frequency emission is obtained, but concrete principle and signal source and unclear.And owing to take highly confidential blockade, accurately acquisition of technology approach abroad.China also needs the artificial judgment aperture to penetrate in process at present, and the monitoring in the processing and the main employing of corresponding control are deleted manually the feeding tail and realized.
Prior art is not enough and improvement:
Existing personal monitoring's control mode in the electricity liquid bundle process technology, efficient is low, fault rate is high, labour intensity is large, has greatly limited working (machining) efficiency.
Summary of the invention
The present invention provides a kind of electric liquid Shu Jiagong monitoring process method for the defective that exists in the prior art just, its objective is by electric liquid Shu Jiagong being penetrated collection, processing and the feedback of signal, realizes full-automatic processing monitoring processing.
Technical solution of the present invention realizes by following measures:
The step of the electric liquid Shu Jiagong of this kind monitoring process method is:
(1) the contact-type liquid level sensor is fixed on the electrode end oblique upper, the angle between contact-type liquid level sensor and the electrode is 40 °～50 °;
(2) in work box or outside digital camera is installed Real-Time Monitoring is carried out in the processing district, guarantee that it is its necessary condition that electrode end is positioned at monitoring range all the time;
(3) in the process, the liquid physical phenomenon of returning when entering workpiece take electrode is processing monitoring source, with contact-type liquid level sensor collection liquid level signal, exports Programmable Logic Controller to after signal amplifier amplifies, liquid level signal disappeared 3 seconds, penetrated decision condition one as processing; Use simultaneously digital camera Real-time Collection visual pattern, in image processor, at that time visual pattern and the value of consecutive frame number of images subtracted each other in real time, when image change is lower than setting value, to the programmable controller signal, as penetrating decision condition two;
(4) programmable controller penetrates according to condition one and condition two compound judgement apertures, and to the machine tool control system sender, system's automatic position-changing carries out the processing of next aperture.
Technical solution of the present invention is to return liquid as monitoring target, adopt contact-type liquid level sensor and amplification processor to measure and return having or not of liquid, adopt simultaneously vision sensor to judge according to the sudden change of image and return having or not of liquid, carry out compound judgement by programmable controller PLC at last, namely by the liquid physical phenomenon of returning in the process is monitored, realizing automatic collection and the sensing of electric liquid Shu Jiagong inner chamber punch signal, is the automatically technology prerequisite of processing of electric liquid Shu Shixian.
In the electricity liquid bundle process, the variation of processing electric current and machining voltage is very little, as processing monitoring source, is difficult to judge and easily produce error with this.Prove through long-term a large amount of machining experiments, electric liquid bundle adds man-hour, returns probability that the liquid phenomenon occurs for absolutely, chooses therefore that to return the liquid phenomenon very reliable as processing monitoring source.The process of a dynamic change but return liquid, be difficult for it is monitored, therefore subtract each other in real time the variation that detects the dynamic image consecutive frame by image, and compare to judge have or not (vision system) that returns liquid with setting value, accurate for guaranteeing monitoring, adopt simultaneously the contact-type liquid level sensor to monitor by electro-optical system.Thereby the compound judgement by two paths of signals realizes that accurately electric liquid Shu Jiagong's is automatically-monitored.
In order to guarantee not shut down processing, in control program, take empirical value to insert, every hole adds the man-hour monitoring system and starts working after setting time-delay.After a part detects signal, carry out communication with another part immediately, after the success of two parts sender, send aperture to machine tool control system and penetrate instruction.If after communication, the part of hysteresis is not sent signal within the time that limits, and the time is sent instruction to machine tool control system after surpassing the empirical value that arranges, and simultaneity factor is reported to the police, and is recorded in the journal file for future reference.
The advantage of technical solution of the present invention is:
1. the monitoring source substitutes original weak current variation with the stable liquid physical phenomenon of returning that occurs in the process, thereby makes monitoring more reliable;
2. adopt contact-type liquid level sensor and amplification processor and vision sensor simultaneously the sudden change of returning the liquid image to be monitored, realize automatic collection and the sensing of electric liquid Shu Jiagong inner chamber punch signal, solved the key problem in technology in the full-automatic processing of electric liquid bundle;
3. by programmable controller visual signal and haptic signal are carried out compound judgement, thereby improved the reliability of automatic processing.With the monitoring system that this technology is succeeded in developing, significantly reduce the people and be non-cutting time and maloperation, improved the working (machining) efficiency of electric liquid bundle.
Description of drawings
Fig. 1 is that the system that technical solution of the present invention is implemented consists of schematic diagram
Fig. 2 is the control software flow pattern that technical solution of the present invention is implemented
The specific embodiment
Below will take processing moving turbine blade film cooling holes as example, by reference to the accompanying drawings technical solution of the present invention be further described:
Shown in accompanying drawing 1, this monitoring system is worked simultaneously by photoelectric sensing and image sensing two parts and mutually communication, by the liquid physical phenomenon of returning in the process is carried out Real-Time Monitoring, two parts set up " with " relation carry out compound judgement, realize automatic collection and the sensing of electric liquid Shu Jiagong inner chamber punch signal.
Photoelectric sensing partly adopts contact-type liquid level sensor 1 to measure in real time and returns having or not of liquid.Contact-type liquid level sensor 1 is fixed on electrode 2 terminal oblique uppers, angle between contact-type liquid level sensor 1 and the electrode is 40 °, adjust the relative distance of 2 at contact-type liquid level sensor 1 and electrode, should guarantee that contact-type liquid level sensor 1 is arranged in returns in the liquid path, overcome again the liquid adhesive attraction and form larger adhering to, thereby guarantee the sensing sensitivity of contact.With the signal that contact-type liquid level sensor 1 gathers, after signal amplifier 6 amplified, input programmable logic controller 8 was processed.Liquid level signal disappears and to penetrate decision condition one as aperture in 3 seconds;
Image sensing partly is to carry out Real-Time Monitoring in 4 pairs of processing districts of work box 3 outer installation digital cameras, electrode 2 ends are positioned at monitoring range all the time, adopt digital camera 4 Real-time Collection visual patterns, picture signal is input to image processor 7, by the variation of subtracting each other in real time detection dynamic image consecutive frame of image.When image change is lower than the value of setting, then be judged to be aperture and penetrate, image processor 7 outputs signal to programmable controller 8, penetrates decision condition two as aperture;
When penetrating condition one, two and satisfying, programmable controller 8 sends instruction to machine tool control system, thereby automatic position-changing carries out the processing of next aperture.
Shown in accompanying drawing 2, programmable controller 8 is realized above-mentioned monitoring and control procedure by this software program.Its Program one is corresponding with the photoelectric sensing part, and program two is corresponding with the image sensing part.
By adopting this monitoring technology can realize the automation of electric liquid Shu Jiagong, effectively reduced the error in the electric liquid bundle process.Artificial secondary process time decreased 30% has increased substantially working (machining) efficiency, has reduced labour intensity, has eliminated the risk of personal monitoring's maloperation.
Claims (1)
1. electrolysis-jet processing penetration monitoring treatment process is characterized in that: steps of the method are:
⑴ be fixed on the terminal oblique upper of electrode (2) with contact-type liquid level sensor (1), and the angle between contact-type liquid level sensor (1) and the electrode is 40 °～50 °;
In work box (3) or outside digital camera (4) is installed Real-Time Monitoring is carried out in the processing district, guarantee that electrode (2) stub area is positioned at monitoring range all the time;
⑶ in the process, the liquid physical phenomenon of returning when entering workpiece (5) take electrode (2) is processing monitoring source, gather liquid level signal with contact-type liquid level sensor (1), after amplifying, signal amplifier (6) exports Programmable Logic Controller (8) to, liquid level signal disappears and to penetrate decision condition one as processing in 3 seconds, use simultaneously digital camera (4) Real-time Collection visual pattern and export image processor (7) to, image processor (7) is with the number of images value and calculate the at that time variation of visual pattern and consecutive frame digital quantity, subtract each other in real time, when image change is lower than setting value, send signal to programmable controller (8), penetrate decision condition two as processing;
⑷ penetrate decision condition one, two when satisfying, and programmable controller (8) judges that aperture penetrates, and to the machine tool control system sender, automatic position-changing carries out the processing of next aperture.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200810134881 CN101332525B (en) | 2008-08-06 | 2008-08-06 | Electrolysis-jet processing penetration monitoring treatment process |
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| CN 200810134881 CN101332525B (en) | 2008-08-06 | 2008-08-06 | Electrolysis-jet processing penetration monitoring treatment process |
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| CN101332525A CN101332525A (en) | 2008-12-31 |
| CN101332525B true CN101332525B (en) | 2013-01-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP4925481B2 (en) * | 2009-07-01 | 2012-04-25 | 株式会社ソディック | Wire cut electric discharge machine |
| CN115815715A (en) * | 2022-08-27 | 2023-03-21 | 北京石油化工学院 | Electric spark ultrasonic composite non-deterioration layer processing technology method for aviation blade air film hole |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3241299B2 (en) * | 1997-07-01 | 2001-12-25 | 独立行政法人産業技術総合研究所 | Method and apparatus for micro-electrochemical machining of inner surface of hole |
| US6339208B1 (en) * | 2000-01-19 | 2002-01-15 | General Electric Company | Method of forming cooling holes |
| JP2005271108A (en) * | 2004-03-23 | 2005-10-06 | Mitsutoyo Corp | Through hole machining method using micro-electric discharge machining |
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2008
- 2008-08-06 CN CN 200810134881 patent/CN101332525B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3241299B2 (en) * | 1997-07-01 | 2001-12-25 | 独立行政法人産業技術総合研究所 | Method and apparatus for micro-electrochemical machining of inner surface of hole |
| US6339208B1 (en) * | 2000-01-19 | 2002-01-15 | General Electric Company | Method of forming cooling holes |
| JP2005271108A (en) * | 2004-03-23 | 2005-10-06 | Mitsutoyo Corp | Through hole machining method using micro-electric discharge machining |
Non-Patent Citations (2)
| Title |
|---|
| 施文轩等.电液束加工工艺的研究及其发展.《航空制造技术》.2001,(第06期),25-27. * |
| 李英杰等.电液束加工小孔质量的试验研究.《机械科学与技术》.2007,第26卷(第05期),619-622. * |
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