CN103279604A - Automatic measuring and positioning method for electric spark punching - Google Patents
Automatic measuring and positioning method for electric spark punching Download PDFInfo
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- CN103279604A CN103279604A CN2013101938965A CN201310193896A CN103279604A CN 103279604 A CN103279604 A CN 103279604A CN 2013101938965 A CN2013101938965 A CN 2013101938965A CN 201310193896 A CN201310193896 A CN 201310193896A CN 103279604 A CN103279604 A CN 103279604A
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Abstract
The invention discloses an automatic measuring and positioning method for electric spark punching. The method includes the steps that an onboard detection system is adopted for comprehensively detecting and positioning a plurality of disperse datum holes in each segment of parts of a thin-wall flame tube, a corresponding machining program is programmed, and an error analysis and compensation of hole locations and precise calculation of point locations are automatically achieved in the process of machining; a punching three-dimensional model of the parts is accurately established, a first point table data file is established, and a measuring and positioning program is operated to measure and position the disperse datum holes in the entity parts; pre-machining theoretical data values in the model are extracted, a second point table data file is established, the machining program is programmed, the program includes two point table data and is compared with a connecting and compensating revision program, and location precision and hole pattern precision of machined holes are detected. The automatic measuring and positioning method for the electric spark punching has the advantages of being applied to electric spark group hole machining of an inner ring part and an outer ring part of a flame tube of an engine, meeting the hole pattern precision and the location precision of the machining parts and greatly improving machining efficiency compared with a traditional technology method.
Description
Technical field
The present invention relates to the spark erosion technique field, particularly the automatic measurement and positioning method in a kind of electric spark-erosion perforation.
Background technology
Burner inner liner is annular group hole thin-wall part, nearly ten thousand the cold gas fenestras that specification does not wait that distribute on its wall, and part axial is made up of 5 annular segments, and each segmentation axially has 12 pilot holes, and the pilot hole that each section air film hole is centered around the zone evenly distributes.Traditional electrical spark drilling technology is with behind the part axial centering, dispersion datum hole to each each zone of segmentation is located separately, finish the electrosparking of region air film hole then respectively, this method is because disperse datum hole quantity more, processing is smooth and easy carrying out continuously, whole working (machining) efficiency is extremely low, and because of employing is single benchmark independence tool setting mode, deviation can't obtain effective balance and elimination between each datum hole, often appearance is overproof for the integral position deviation of air film hole after the machine-shaping, and situation seriously may cause part to scrap.
Summary of the invention
The objective of the invention is in order to realize the full process automatization control of the analysis of process mesopore bit error, compensation and some position accurate Calculation, the spy provides the automatic measurement and positioning method in a kind of electric spark-erosion perforation.
The invention provides the automatic measurement and positioning method in a kind of electric spark-erosion perforation, it is characterized in that: the automatic measurement and positioning method in the described electric spark-erosion perforation, adopt airborne detection system, a plurality of dispersion datum holes in each segmentation of thin-walled burner inner liner part are comprehensively surveyed the location, work out corresponding job sequence, automatically the hole bit error in the realization process is analyzed, is compensated and some position accurate Calculation, and realization full process automatization control finally realizes the electrosparking in part group of mean people hole;
Detailed process is: set up the three-dimensional model of part punching accurately, all disperse datum hole gross data value in the extraction model, set up first some table data file, establishment measurement and positioning program, the operating measurement finder disperses datum hole to carry out measurement and positioning to entity component, finishes the correction of first some table data file simultaneously; The gross data value of institute's preprocessing in the extraction model is set up second some table data file, machining programming, and this program comprises two some table data, and comparison connects and the compensation revision program, operation job sequence, check machining hole positional precision and pass precision.
Automatic measurement and positioning technology is incorporated into the preceding centering link of burner inner liner part electric spark-erosion perforation processing, by the establishment specific program dispersion datum hole of each section of part is carried out comprehensive measurement and positioning, and the dispersion datum hole that will measure and overall fiducial error value record are in the table of corresponding program number strong point, the error amount of corresponding region in the automatic call site table of program meeting in the process, revise the position coordinates of preprocessing hole, the final disposable efficient accurately electrosparking that part has regional air film hole of finishing.
The group hole of adopting this mode to process, rely on because of each section the dispersion datum hole of location with totally between the benchmark deviation can obtain automatic balance and elimination, the part of air film hole and overall positions error can reach optimal balance point after the machine-shaping, effectively avoid the annular thin wall distortion inaccuracy to the harmful effect that the processing of part group hole produces, improve part processing quality and working (machining) efficiency.
Advantage of the present invention:
Automatic measurement and positioning method in the electric spark-erosion perforation of the present invention is applied to satisfy pass precision and the positional precision of processing parts in the electric spark group hole processing of engine flame tube inner and outer rings part, and working (machining) efficiency significantly improves than the traditional handicraft method.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is the automatic measurement and positioning method flow diagram in the electric spark-erosion perforation.
Embodiment
Embodiment 1
The invention provides the automatic measurement and positioning method in a kind of electric spark-erosion perforation, it is characterized in that: the automatic measurement and positioning method in the described electric spark-erosion perforation, adopt airborne detection system, a plurality of dispersion datum holes in each segmentation of thin-walled burner inner liner part are comprehensively surveyed the location, work out corresponding job sequence, automatically the hole bit error in the realization process is analyzed, is compensated and some position accurate Calculation, and realization full process automatization control finally realizes the electrosparking in part group of mean people hole;
Detailed process is: set up the three-dimensional model of part punching accurately, all disperse datum hole gross data value in the extraction model, set up first some table data file, establishment measurement and positioning program, the operating measurement finder disperses datum hole to carry out measurement and positioning to entity component, finishes the correction of first some table data file simultaneously; The gross data value of institute's preprocessing in the extraction model is set up second some table data file, machining programming, and this program comprises two some table data, and comparison connects and the compensation revision program, operation job sequence, check machining hole positional precision and pass precision.
Automatic measurement and positioning technology is incorporated into the preceding centering link of burner inner liner part electric spark-erosion perforation processing, by the establishment specific program dispersion datum hole of each section of part is carried out comprehensive measurement and positioning, and the dispersion datum hole that will measure and overall fiducial error value record are in the table of corresponding program number strong point, the error amount of corresponding region in the automatic call site table of program meeting in the process, revise the position coordinates of preprocessing hole, the final disposable efficient accurately electrosparking that part has regional air film hole of finishing.
The group hole of adopting this mode to process, rely on because of each section the dispersion datum hole of location with totally between the benchmark deviation can obtain automatic balance and elimination, the part of air film hole and overall positions error can reach optimal balance point after the machine-shaping, effectively avoid the annular thin wall distortion inaccuracy to the harmful effect that the processing of part group hole produces, improve part processing quality and working (machining) efficiency.
Claims (2)
1. the automatic measurement and positioning method in the electric spark-erosion perforation, it is characterized in that: the automatic measurement and positioning method in the described electric spark-erosion perforation, adopt airborne detection system, a plurality of dispersion datum holes in each segmentation of thin-walled burner inner liner part are comprehensively surveyed the location, work out corresponding job sequence, automatically the hole bit error in the realization process is analyzed, is compensated and some position accurate Calculation, and realization full process automatization control finally realizes the electrosparking in part group of mean people hole;
Detailed process is: set up the three-dimensional model of part punching accurately, all disperse datum hole gross data value in the extraction model, set up first some table data file, establishment measurement and positioning program, the operating measurement finder disperses datum hole to carry out measurement and positioning to entity component, finishes the correction of first some table data file simultaneously; The gross data value of institute's preprocessing in the extraction model is set up second some table data file, machining programming, and this program comprises two some table data, and comparison connects and the compensation revision program, operation job sequence, check machining hole positional precision and pass precision.
2. according to the automatic measurement and positioning method in the described electric spark-erosion perforation of claim 1, it is characterized in that: the automatic measurement and positioning method in the described electric spark-erosion perforation is incorporated into the preceding centering link of burner inner liner part electric spark-erosion perforation processing with automatic measurement and positioning technology, by the establishment specific program dispersion datum hole of each section of part is carried out comprehensive measurement and positioning, and the dispersion datum hole that will measure and overall fiducial error value record are in the table of corresponding program number strong point, the error amount of corresponding region in the automatic call site table of program meeting in the process, revise the position coordinates of preprocessing hole, the final disposable efficient accurately electrosparking that part has regional air film hole of finishing.
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| CN2013101938965A CN103279604A (en) | 2013-05-23 | 2013-05-23 | Automatic measuring and positioning method for electric spark punching |
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| CN2013101938965A CN103279604A (en) | 2013-05-23 | 2013-05-23 | Automatic measuring and positioning method for electric spark punching |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298548A (en) * | 2015-11-20 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for designing turbine impeller of micro gas turbine |
| CN109117572A (en) * | 2018-08-27 | 2019-01-01 | 珠海市微半导体有限公司 | A kind of graphical diagram pin based on circuit diagram stretches line marking method automatically |
| CN111822801A (en) * | 2020-07-31 | 2020-10-27 | 成都和鸿科技有限公司 | Method for milling turbine blade expansion hole by electric spark |
| CN112091336A (en) * | 2020-09-21 | 2020-12-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for accurately positioning interference gas film hole of integrally cast blade by electric spark machining |
| CN112475490A (en) * | 2020-11-12 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for gas film hole at seam groove part of flame tube in electric spark machining |
| CN112558549A (en) * | 2021-02-09 | 2021-03-26 | 成都飞机工业（集团）有限责任公司 | Reference selection method for minimum hole site error in large-part group hole machining |
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2013
- 2013-05-23 CN CN2013101938965A patent/CN103279604A/en active Pending
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105298548A (en) * | 2015-11-20 | 2016-02-03 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for designing turbine impeller of micro gas turbine |
| CN109117572A (en) * | 2018-08-27 | 2019-01-01 | 珠海市微半导体有限公司 | A kind of graphical diagram pin based on circuit diagram stretches line marking method automatically |
| CN109117572B (en) * | 2018-08-27 | 2023-01-10 | 珠海一微半导体股份有限公司 | Automatic wire-stretching marking method for symbolic diagram pins based on circuit schematic diagram |
| CN111822801A (en) * | 2020-07-31 | 2020-10-27 | 成都和鸿科技有限公司 | Method for milling turbine blade expansion hole by electric spark |
| CN112091336A (en) * | 2020-09-21 | 2020-12-18 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for accurately positioning interference gas film hole of integrally cast blade by electric spark machining |
| CN112475490A (en) * | 2020-11-12 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for gas film hole at seam groove part of flame tube in electric spark machining |
| CN112475490B (en) * | 2020-11-12 | 2022-08-19 | 中国航发沈阳黎明航空发动机有限责任公司 | Wall-to-wall protection method for air film hole at seam groove part of flame tube in electric spark machining |
| CN112558549A (en) * | 2021-02-09 | 2021-03-26 | 成都飞机工业（集团）有限责任公司 | Reference selection method for minimum hole site error in large-part group hole machining |
| WO2022170841A1 (en) * | 2021-02-09 | 2022-08-18 | 成都飞机工业（集团）有限责任公司 | Benchmark selection method for minimizing hole position errors in large-component hole group machining |
| US20230384755A1 (en) * | 2021-02-09 | 2023-11-30 | Chengdu Aircraft Industrial (Group) Co., Ltd. | Datum selection methods and systems for minimizing hole position errors in group hole machining of large components |
| US11914339B2 (en) * | 2021-02-09 | 2024-02-27 | Chengdu Aircraft Industrial (Group) Co., Ltd. | Datum selection methods and systems for minimizing hole position errors in group hole machining of large components |
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Application publication date: 20130904 |