CN103264405A - High-accuracy annular dovetail mortise contour detection sample cream cutting method - Google Patents
High-accuracy annular dovetail mortise contour detection sample cream cutting method Download PDFInfo
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- CN103264405A CN103264405A CN2013101764501A CN201310176450A CN103264405A CN 103264405 A CN103264405 A CN 103264405A CN 2013101764501 A CN2013101764501 A CN 2013101764501A CN 201310176450 A CN201310176450 A CN 201310176450A CN 103264405 A CN103264405 A CN 103264405A
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Abstract
A high-accuracy annular dovetail mortise contour detection sample cream cutting method includes the following operation steps: evenly kneading sample cream, filling the sample cream into a machined part mortise face, conducting compaction and plasticizing, utilizing a cutting tool to cut the sample crease into a blank with the width as 8mm, taking out the complete sample crease, placing the sample crease blank into a special tool in a sliding mode, modifying the section of the sample crease, enabling the modified section to lean against the end face of a plug, sliding the section for 0.5mm, conducting slice cutting through a narrow groove, taking out sample crease slices, clearing burrs on the edges of the slices through a banister brush, arranging the slices on a glass board of a projector, magnifying a projection image by 50 times and comparing the image with a projection template to check mortise contour tolerance to finish detection work. The method has the advantages of solving technical problems of sample crease sampling, cutting and accuracy detection of a high-accuracy annular mortise, being capable of being popularized and used in similar parts and having broad application prospect in aero-engine and power gas turbine series of new generation.
Description
Technical field
The present invention relates to machining detection technique field, particularly a kind of high accuracy annular dovetail channel profiles detect sample cream cutting method.
Background technology
During a new generation's aero-engine dish, drum barrel class part processing are made, for improving the performance of engine, adopt the parts of annular dovetail tongue-and-groove more and more, the tongue-and-groove major function is to connect, drive blade to rotate at a high speed, the key characteristic that belongs to part, the dimensional accuracy of tongue-and-groove profile and profile tolerance are very strict, and work profile tolerance of a surface tolerance is at ± 7 μ m～± 10 μ m.Belong to the near closed hollow ring structure because the tongue-and-groove type is drawn, the detection of profile tolerance tolerance is the key technical problem of puzzlement engine quality control always, and this type of detection technique and instrument receive much concern always.Traditional annular birch channel profile sample cream detection technique, be with sample cream insert in the birch grooved chamber solidify after, use paper knife radially sample cream to be divided into two, take out the shape of half block sample cream, can't obtain complete tongue-and-groove profile sample cream, influence detects the judgement of conclusion, and when sample cream is cut into slices, requiring to cut into slices must be perpendicular to the tongue-and-groove center line, the about 0.5mm of slice thickness.Because sample cream cuts in free state, has elasticity, it is manual operations during cutting, be difficult to straight center line, guarantee vertical, the success rate of cutting qualified section is very low, waste a large amount of sample cream and time, the sample cream section thin and thick uniformity is bad, projection through 50 times on projecting apparatus is amplified, and it is very obvious that the defective of sample cream section itself shows, influences piece test result's judgement, particularly bigger in the whether qualified detection conclusion decision errors of birch groove, the precision and the efficient that detect are lower, can't satisfy processing detection demand, and annular dovetail channel profile profile detection technique has become a technical barrier that needs to be resolved hurrily.Newly-be badly in need of a kind of annular tongue-and-groove sample cream slice processing method that can realize high accuracy and detection efficiency for the aero-engine detection technique.
Summary of the invention
The purpose of this invention is to provide a kind of bar cream holotype that can realize extracts, sample cream efficiently cuts, provide the second best in quality annular dovetail birch channel profile to detect sample cream cutting method, it is inhomogeneous to solve sample cream slice thickness, cutting tool and sample cream off plumb problem, satisfy high accuracy annular dovetail channel profile and detect needs, the spy provides a kind of high accuracy annular dovetail channel profiles to detect sample cream cutting method.
The invention provides a kind of high accuracy annular dovetail channel profiles and detect sample cream cutting method, it is characterized in that: described high accuracy annular dovetail channel profiles detects sample cream cutting method and is: determining of tool construction, and adopt a kind of cutting tool, a kind of standard cutter and orientation tool to finish the section work that high accuracy annular dovetail tongue-and-groove detects sample cream.Cutting tool uses spring steel plate to process according to the structure of tongue-and-groove, is used for extracting complete sample cream blank in closed tongue-and-groove; Standard cutter uses the sharp blade of cutting a sheet of paper, and is used for the section of sample cream; Special-purpose orientation tool is the shape according to annular dovetail tongue-and-groove, process one section annular tongue-and-groove with the part same size, identical shaped plug is used at instrument tongue-and-groove profile two ends, be used for location sample cream, on the tongue-and-groove cross section of instrument, process a narrow groove vertical with tongue-and-groove, that width is 0.32mm, be used for the located slices cutter, guarantee tongue-and-groove printingout quality;
Operating procedure: sample cream is rubbed up evenly, insert in the part tongue-and-groove profile that has processed compacting, plasticizing.Use cutting tool, along tongue-and-groove cross section incision sample cream, sample cream is divided into the blank of wide 8mm, utilize the toughness of sample cream to be rotated, take out complete sample cream holotype; Sample cream blank is slipped in the specific purpose tool, with the blade correction sample cream cross section of cutting a sheet of paper, revised cross section is leaned against on the plug end face, behind the slip 0.5mm, cut into slices by narrow groove, after the section of sample cream is taken out, with banister brush the burr of slicing edge are removed; Section is placed on the projecting apparatus glass plate, amplifies 50 times of projection images, comparing with the projection template checks tongue-and-groove profile tolerance, finishes testing.
Advantage of the present invention:
Be mainly used in the slice processing of aero-engine dish, drum barrel class part high accuracy annular dovetail tongue-and-groove sample cream, solved the technical bottleneck of the sampling of high accuracy annular tongue-and-groove sample cream, cutting and accuracy of detection, can in similar part, promote the use of, in aero-engine of new generation, power combustion engine series, have broad application prospects.
The invention solves the technical barrier that aero-engine high accuracy annular dovetail channel profiles of new generation detects.Annular dovetail tenon groove structure is that the chamber is young greatly, belongs near closed hollow ring, and traditional manual sampling can't be obtained complete tongue-and-groove profile bar cream, and hand cut sample cream efficient is low, and chipping qualities is uncontrollable, the effect that influence detects and judgement conclusion.By manufacturing and designing the specific purpose tool of special construction, the process that adopts brand-new sample cream to extract, cut, satisfied the requirement of high accuracy annular tongue-and-groove profile detection technique, break through high accuracy annular dovetail tenon groove structure dish drum class part tongue-and-groove profile detection difficult point and detection conclusion and judged inaccurate bottleneck problem, lifting to aero-engine of new generation, gas turbine manufacturing and detection technique level has profound significance.Cutting tool provided by the invention, special-purpose orientation tool have the characteristics such as complete, the precision of cutting into slices height, efficient is fast, easy operating of taking a sample, and can effectively improve chipping qualities and detection efficiency and save sample cream cost, reduce to detect the decision errors of conclusion.Can be used for the detection of other high accuracy complex profile profile tolerance.Along with the continuous increase of product demand, this achievement will be brought into play bigger effect, produce bigger benefit.
-kind of the dish based on annular dovetail tenon groove structure, drum barrel part tongue-and-groove detect sample cream cutting method, be applied in the detection of aero-engine dish of new generation, drum barrel sub-assembly high accuracy annular dovetail tongue-and-groove, change the traditional extraction of sample cream, cutting process method, comprehensively raising dish drum part processing and detection quality.This achievement can be widely used in coiling in the detection of bulging part annular tongue-and-groove.According to tongue-and-groove size and design feature, suitably adjust the size of improving cutter and specific purpose tool, both can enlarge user demand and scope, be used for the detection of dish drum part series of annular tongue-and-groove.
Description of drawings
The present invention is further detailed explanation below in conjunction with drawings and the embodiments:
Fig. 1 is the structural representation of dedicated tool of the present invention;
Fig. 2 is the structural representation of the special-purpose orientation tool of the present invention;
Fig. 3 is part tenon groove structure schematic diagram of the present invention;
Fig. 4 tradition part tongue-and-groove sample cream cutting schematic diagram;
Fig. 5 fills sample cream master apparent direction schematic diagram;
Fig. 6 fills sample cream left side apparent direction schematic diagram;
Fig. 7 is the tongue-and-groove sample cream main apparent direction schematic diagram of taking a sample;
Fig. 8 is the tongue-and-groove sample cream left apparent direction schematic diagram of taking a sample;
Fig. 9 is sample cream tack master apparent direction schematic diagram;
Figure 10 is sample cream tack left side apparent direction schematic diagram;
Figure 11 is plug location sample cream master apparent direction schematic diagram;
Figure 12 is a sample cream left side, plug location apparent direction schematic diagram;
Figure 13 is sample cream section schematic diagram master apparent direction schematic diagram;
Figure 14 is sample cream section schematic diagram left side apparent direction schematic diagram;
Among the figure, 1 is special-purpose orientation tool, and 2 is left plug, and 3 is right plug, and 4 is seized part, and 5 is sample cream, and 6 is special-purpose sampling cutter, and 7 are the standard section cutting tool blade of namely cutting a sheet of paper.
The specific embodiment
A kind of high accuracy annular dovetail channel profiles detects sample cream cutting method, it is characterized in that: described high accuracy annular dovetail channel profiles detects sample cream cutting method and is: determining of tool construction, and adopt a kind of cutting tool, a kind of standard cutter and orientation tool to finish the section work that high accuracy annular dovetail tongue-and-groove detects sample cream.Cutting tool uses spring steel plate to process according to the structure of tongue-and-groove, is used for extracting complete sample cream blank in closed tongue-and-groove; Standard cutter uses the sharp blade of cutting a sheet of paper, and is used for the section of sample cream; Special-purpose orientation tool is the shape according to annular dovetail tongue-and-groove, process one section annular tongue-and-groove with the part same size, identical shaped plug is used at instrument tongue-and-groove profile two ends, be used for location sample cream, on the tongue-and-groove cross section of instrument, process a narrow groove vertical with tongue-and-groove, that width is 0.32mm, be used for the located slices cutter, guarantee tongue-and-groove printingout quality;
Operating procedure: sample cream is rubbed up evenly, insert in the part tongue-and-groove profile that has processed compacting, plasticizing.Use cutting tool, along tongue-and-groove cross section incision sample cream, sample cream is divided into the blank of wide 8mm, utilize the toughness of sample cream to be rotated, take out complete sample cream holotype; Sample cream blank is slipped in the specific purpose tool, with the blade correction sample cream cross section of cutting a sheet of paper, revised cross section is leaned against on the plug end face, behind the slip 0.5mm, cut into slices by narrow groove, after the section of sample cream is taken out, with banister brush the burr of slicing edge are removed; Section is placed on the projecting apparatus glass plate, amplifies 50 times of projection images, comparing with the projection template checks tongue-and-groove profile tolerance, finishes testing.
In engine blower dish, compressor disc and drum barrel sub-assembly annular dovetail structure tongue-and-groove profile testing process, use designed specific purpose tool and the cutter of the present invention, carry out the sampling of sample cream, cutting, section, extract the complete shape of the profile of tongue-and-groove, amplify 50 times at projecting apparatus and detect tongue-and-groove machined surface profile tolerance, carry out item by item according to operating procedure, at first sample cream is merged evenly, insert in the tongue-and-groove profile, naturally plasticizing, hardening.Next uses dedicated tool, along tongue-and-groove cross section incision sample cream, and moves up and down, and sample cream is divided into the blank of wide 8mm, and rotation sample cream blank takes out holotype sample cream from part.Sample cream blank is slipped in the special-purpose cutting tool, with plug blank is fixed, along the narrow groove cutting of instrument sample cream, guarantee sample cream tangent plane perpendicular to the tongue-and-groove center line, the benchmark of clearing with paper knife.With the sample cream behind the tack, in the special-purpose orientation tool of cutting, cut into slices along the sample cream that narrow groove cuts out thickness 0.5mm with paper knife, remove the slicing edge burr with hairbrush.At last sample cream section is placed on the projecting apparatus, amplify 50 times with the enlarged drawing inspection of comparing, make judgement, finish whole testing process.
Claims (1)
1. a high accuracy annular dovetail channel profiles detects sample cream cutting method, it is characterized in that: described high accuracy annular dovetail channel profiles detects sample cream cutting method and is: determining of tool construction, and adopt a kind of cutting tool, a kind of standard cutter and orientation tool to finish the section work that high accuracy annular dovetail tongue-and-groove detects sample cream; Cutting tool uses spring steel plate to process according to the structure of tongue-and-groove, is used for extracting complete sample cream blank in closed tongue-and-groove; Standard cutter uses the sharp blade of cutting a sheet of paper, and is used for the section of sample cream; Special-purpose orientation tool is the shape according to annular dovetail tongue-and-groove, process one section annular tongue-and-groove with the part same size, identical shaped plug is used at instrument tongue-and-groove profile two ends, be used for location sample cream, on the tongue-and-groove cross section of instrument, process a narrow groove vertical with tongue-and-groove, that width is 0.32mm, be used for the located slices cutter, guarantee tongue-and-groove printingout quality;
Operating procedure: sample cream is rubbed up evenly, insert in the part tongue-and-groove profile that has processed compacting, plasticizing; Use cutting tool, along tongue-and-groove cross section incision sample cream, sample cream is divided into the blank of wide 8mm, utilize the toughness of sample cream to be rotated, take out complete sample cream holotype; Sample cream blank is slipped in the specific purpose tool, with the blade correction sample cream cross section of cutting a sheet of paper, revised cross section is leaned against on the plug end face, behind the slip 0.5mm, cut into slices by narrow groove, after the section of sample cream is taken out, with banister brush the burr of slicing edge are removed; Section is placed on the projecting apparatus glass plate, amplifies 50 times of projection images, comparing with the projection template checks tongue-and-groove profile tolerance, finishes testing.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196369A (en) * | 2013-03-20 | 2013-07-10 | 沈阳飞机工业（集团）有限公司 | Detection method for bended rivet punch |
| CN105537657A (en) * | 2016-03-17 | 2016-05-04 | 沈阳飞机工业（集团）有限公司 | Method for machining lug-type notch in numerical control mode |
| CN106595420A (en) * | 2016-11-29 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for detecting size of annular mortise working surface |
| CN109269435A (en) * | 2018-09-05 | 2019-01-25 | 中国航发动力股份有限公司 | A kind of detection method removing depth of material |
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| EP0498510B1 (en) * | 1991-02-05 | 1997-04-16 | Johannes Adrianes Boumans | Method for milling recesses for door lock plates and door locks |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103196369A (en) * | 2013-03-20 | 2013-07-10 | 沈阳飞机工业（集团）有限公司 | Detection method for bended rivet punch |
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| CN105537657A (en) * | 2016-03-17 | 2016-05-04 | 沈阳飞机工业（集团）有限公司 | Method for machining lug-type notch in numerical control mode |
| CN106595420A (en) * | 2016-11-29 | 2017-04-26 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for detecting size of annular mortise working surface |
| CN109269435A (en) * | 2018-09-05 | 2019-01-25 | 中国航发动力股份有限公司 | A kind of detection method removing depth of material |
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| CN103264405B (en) | 2015-06-10 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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Granted publication date: 20150610 Termination date: 20210513 |