CN105345382A - Method for digitally determining angular direction of pipeline - Google Patents
Method for digitally determining angular direction of pipeline Download PDFInfo
- Publication number
- CN105345382A CN105345382A CN201510695009.3A CN201510695009A CN105345382A CN 105345382 A CN105345382 A CN 105345382A CN 201510695009 A CN201510695009 A CN 201510695009A CN 105345382 A CN105345382 A CN 105345382A
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- China
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- data
- joint
- angle
- pipeline
- conduit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
Abstract
The invention discloses a method for digitally determining an angular direction of a pipeline. The method comprises the steps that a connector is clamped on a clamp with the indexing function; a matched guide tube is assembled on the connector according to any space angle; a tubular measurer is used for carrying out point collecting on the outer surface of the matched guide tube and the outer surface of the connector, a space data model is obtained through measurement of the tubular measurer, and the space data model is a model with the connector end assumed as the guide tube; data intercepted from UG modeling is used as standard data, data measured from the connector and the matched guide tube is used as correlation data, and therefore simulated data deviation is obtained; then angular deviation is calculated; measurement and adjustment are performed again after the angle is adjusted, and the assembling angle direction is marked on the connector and the matched guide tube till the measurement tolerance is within the allowed assembling tolerance range of the connector. The method can directly determine the angular direction of the connector of a part like the guide tube through UG modeling graphs, and is applicable to parts like guide tubes of any tube diameter, so that the parts are machined more easily, conveniently and efficiently with low cost.
Description
Technical field
The present invention relates to catheter Parts manufacturing technology field, be specifically related to a kind of method of determining angle for pipeline digitlization.
Background technology
Aero-engine has a large amount of catheter parts, the Part No. wherein related to is numerous but same piece number only uses one mostly, and therefore, the catheter part processing characteristic of same model is " specification is many, batch is little ".Catheter part is due to its functional characteristic, different its shape of piece number and complex structure, thickness is different, and length is different, on the same stage engine does not exist two parts that cast is identical, each conduit is because of its corresponding assembly relation, its cast trend and joint Space Angle, to all there are differences, therefore, specify only Matching Relationship in engine duct part design drawing for a long time, do not specify the specifying information such as cast, angle, the processing of concrete part also depends on field sampling, assembling always.
But along with improving constantly of manufacturing industry technical merit and processing conditions, original process technology is more aobvious loaded down with trivial details, flow process is too fat to move and there is the serious wasting of resources.
Concrete deficiency analysis is as follows:
(1) have strict requirement for processing conditions: whole determine pipeline trend and joint angles to work must carry out at final assembly scene, and complete machine substantially assembles complete or has been assembled to the state with sampling condition.
(2) cycle is long: due to the processing conditions requirement of its harshness, then the processing of catheter part can must be carried out after complete machine assembles substantially, therefore, in the process-cycle that catheter part is estimated, has the time waste of nearly 1/2 in wait.Even if processing conditions possesses, whole sampling process then all depends on the manual manufacture of pincers worker, and needs experience correction work repeatedly to complete sampling.Finally, then rely on the exemplar processing parts finished product got.Too much wait and repetition is there is, cycle mediocre length in whole process.
(3) processing stability and uniformity poor: due to the restriction of processing conditions, the quality of sampling quality mainly relies on following 2 points: the quality of the final assembly of 1. used sampling; 2. the operative skill of the pincers worker of sampling is operated.Any point is out of joint will cause the correction repeatedly of exemplar, reprocess.Moreover because whole sampling process is manual operations, the Data support of correspondence useless, random excessive, repeatability and uniformity all cannot ensure, hidden danger has been buried in the use that above problem is the conduit detail later stage.
Along with UG modeling technique is in the develop rapidly of Field of Aviation Manufacturing, and the gradual perfection of production equipment working ability, only by the UG design drawing of catheter part, just can determine the cast trend of conduit detail, and process single tubular easily, but on it institute's complementary connector angle determination in on-the-spot trial assembly can be relied on to sample, or utilize corresponding assembling jig to determine, make the deficiency in whole work flow not because easily the determining and improving of cast trend.
Summary of the invention
For overcoming the problems of the prior art, the object of this invention is to provide a kind of method of determining angle for pipeline digitlization, the method one directly determines catheter joint element angle by UG modeling figure, it is applicable to the catheter part of any caliber, make the processing of this type of part easier, efficient, low cost.
For achieving the above object, the present invention adopts following technical scheme:
Determine a method for angle for pipeline digitlization, comprise the following steps:
1) joint is assumed to be a bending section of conduit, utilizes UG software, obtain UG modeling;
2) trial assembly is joined:
2.1) connector clamp is held on the fixture with calibration function, supporting conduit is first assemblied on joint by arbitrary space angle;
2.2) adopting a little supporting conduit and joint outer surface with cast measuring instrument, and obtain a Spatial Data Model by the measurement of cast measuring instrument, is model tip side being assumed to be conduit by this Spatial Data Model;
2.3) Data Comparison: using the data that intercept from UG modeling as normal data, by the data data as a comparison measured from joint and supporting conduit thing, normal data and correction data are contrasted, obtains the data deviation after emulating;
2.4) calculation deviation angle: according to the data deviation after the emulation of gained, draws X-Y scheme, calculates angular deviation D °;
2.5) angle is adjusted: according to angular deviation D °, by fixture clockwise or be rotated counterclockwise D °;
2.6) again measure and adjust: repeating step 2.2) ~ step 2.5), until when measurement tolerance is within the scope of the build-up tolerance that joint allows, at joint and supporting conduit subscript note assembling angle.
Described step 1) in UG modeling specifically obtain by the following method:
1.1) UG software is utilized to obtain submodel spatial data:
The intersecting point coordinate needing processing tube assembly each section of center line is caught out, comprising the intersecting point coordinate at rotational angle of joint place and the coordinate of joint end face central point from UG design drawing;
1.2) UG software is utilized to set up submodel:
Adopt " the mechanical pipeline layout " function in UG software, will in step 1.1) in the friendship coordinate points coordinate input that catches, obtain the pure conduit UG modeling that joint is assumed to be one section of bend pipe by.
Described step 1.1) in when catching out the intersecting point coordinate needing processing tube assembly each section of center line, by about joint angles to model be all reduced to the catheter models of 2 bending sections.
Described step 2.1) the supporting conduit of middle employing support supplemental support.
Described step 2.3) Plays data and correction data meet manufacturing tolerance, then and chuck is qualified, if two groups of data do not meet manufacturing tolerance, then readjusts supporting conduit.
Described manufacturing tolerance is ± 0.20mm.
The four paws six that described fixture comprises for staple joint coils and index dial, and four paws six dish is arranged on index dial.
Compared with prior art, the beneficial effect that has of the present invention:
1) the present invention is by utilizing UG software, adopt a little by cast measuring instrument to supporting conduit and joint outer surface simultaneously, can be implemented in line to detect, whole process all machines in production scene, avoid a large amount of turnovers and repeated work, shorten the production cycle, reduce processing cost, ensure that product quality and product are paid.
2) the present invention utilizes UG modeling, adopts cast measuring instrument to carry out measurement of coordinates, make use of existing equipments resources to greatest extent, avoid the idle waste of resource, and save the utilization of emphasis device resource, saved production cost;
3) pass through to intercept normal data from UG modeling in the present invention to contrast with the data measured from joint and supporting conduit thing, thus obtain data deviation, according to deviation rolling clamp, again measure and adjustment meeting, more accurate angle data can be obtained, be convenient to the part later stage criticize produce processing, and fixture school inspection
4) the method is applicable to the catheter part of all size, various cast, and the scope of application is wide
Accompanying drawing explanation
Fig. 1 be catheter Components Digital determine joint angles to schematic diagram.
Fig. 2 is pipe component entities model schematic.
Fig. 3 is UG modeling schematic diagram.
In figure: 1 is cast gage probe, 2 is index dial, and 3 is chuck, and 4 is joint, and 5 is conduit, and 6 is end face center, and 7 is mated position center, and 8 is the first pipe two axial lines intersection point, and 9 is the second two axial lines intersection point, and 10 is welding position.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Suppose correctly to assemble with the conduit of Space Angle to joint, and suppose that the joint of pipe end is a bending section of conduit.
1) UG software is utilized to obtain submodel spatial data:
See Fig. 2 and Fig. 3, the intersecting point coordinate needing processing tube assembly each section of center line can be caught out from UG design drawing, comprising the intersecting point coordinate at rotational angle of joint place and the coordinate of joint end face central point, specifically to obtain in end face 6, the coordinate of mated position center 7, first pipe two axial lines intersection point 8, second pipe two axial lines intersection point 9.
Catching the principle of point coordinates: because two crossing straight lines can determine a plane, and the object this time catching point is for determining that the Space Angle of joint and pipe is to relation, therefore, spatially only needing two crossing planes to produce a desired effect.So other bending section of conduit without the need to participating in can be ignored, only need and junction (being assumed to be a guiding-tube bend section in model) and a guiding-tube bend section adjacent with joint.Therefore, this type of about joint angles to any model all can be reduced to the catheter models of 2 bending sections.
2) UG software is utilized to set up submodel:
Use " the mechanical pipeline layout " function in UG software, will in step 1) in the coordinate points input that catches, obtain the pure conduit view that joint is assumed to be one section of bend pipe by, namely obtain UG modeling.
2.1) choosing an overall length is 150mm, and diameter is the conduit tube component of Ф 10, and linearity, circularity, end face and axis verticality are all not more than 0.1, pipe end impulse-free robustness.
2.2) use the UG software UG modeling figure corresponding to this assembly to get a little, concrete data see the following form 1:
Fig. 2 is seen in concrete seizure point position.
Table 1 pipe assembly UG schemes to catch point data (unit: mm)
At this, can simplified model further, because two crossing straight lines can determine a plane, and this time modeling object is that position determines that the Space Angle of joint and pipe is to relation, therefore, spatially only needs two crossing planes to produce a desired effect.So this model can ignore other bending section of conduit without the need to participating in, only need and junction (being assumed to be a guiding-tube bend section in model) and a guiding-tube bend section adjacent with joint.Therefore, this type of about joint angles to any model all can be reduced to the catheter models of 2 bending sections.
3) trial assembly is joined:
3.1) connector clamp is held on the fixture of calibration function, supporting conduit is first assemblied on joint by arbitrary space angle temporarily, because conduit assembling tailheaviness is unstable, adopt support supplemental support.Wherein, fixture comprises index dial 2 and coils 3 for the four paws six of staple joint 4, and four paws six coils 3 and is arranged on index dial 4.
See Fig. 1, conduit 5 end is provided with joint 4, by chuck 3 staple joint 4.
3.2) adopt a little conduit and joint outer surface with cast measuring instrument, and obtain a Spatial Data Model by measuring instrument analysis, this Spatial Data Model is model tip side being assumed conduit.
3.3) Data Comparison: using the data that intercept from UG modeling as normal data, by the data data as a comparison measured from material object, normal data and correction data two groups of emulated datas are contrasted, data deviation contrast after emulation is as shown in table 2 below, two groups of emulated datas meet Fixture planning, within ± 0.20mm, prove that fixture is qualified.
The comparing result of table 2 normal data and correction data
Note: if standard figures with detect the difference of data and be greater than 0.20, then then there is "×" in the correspondence position of " whether in deviation range ", illustrates that material object exists tilting tolerance, need to readjust according to known this of upper table.
3.4) calculation deviation angle: analyze and can obtain according to measurement result, the Y value of the 8th point (the first pipe two axial lines intersection point) and the 9th point (the second pipe two axial lines intersection point) is 5mm, known, cast moves towards coordinate just at X, Z-direction changes, contrast is present in the deviation at the 9th point (the second pipe two axial lines intersection point) place again, standard figures is X:-150, Z:-45, detection numerical value is X:-144.5, Z:-71.5, accordingly, graphics software is used to draw two line segments, line segment two-end-point is respectively: (-78,-44) (-150,-45) and (-78,-44) (-144.5,-71.5), find that the angle between two straight lines is 21.69 °.
3.5) angle is adjusted: according to calculating gained angular deviation 21.69 °, index dial turns clockwise 21.69 °.
3.6) again measure and adjust: repeating step 3.2) ~ 3.5), until within the scope of the build-up tolerance that allows at joint of measurement tolerance, be considered as assembling qualified.Now, mark assembling angle on joint and conduit.
Follow-up tack welding operation can be carried out in welding position 10 after above-mentioned steps.
Claims (7)
1. determine a method for angle for pipeline digitlization, it is characterized in that, comprise the following steps:
1) joint is assumed to be a bending section of conduit, utilizes UG software, obtain UG modeling;
2) trial assembly is joined:
2.1) connector clamp is held on the fixture with calibration function, supporting conduit is first assemblied on joint by arbitrary space angle;
2.2) adopting a little supporting conduit and joint outer surface with cast measuring instrument, and obtain a Spatial Data Model by the measurement of cast measuring instrument, is model tip side being assumed to be conduit by this Spatial Data Model;
2.3) Data Comparison: using the data that intercept from UG modeling as normal data, by the data data as a comparison measured from joint and supporting conduit thing, normal data and correction data are contrasted, obtains the data deviation after emulating;
2.4) calculation deviation angle: according to the data deviation after the emulation of gained, draws X-Y scheme, calculates angular deviation D °;
2.5) angle is adjusted: according to angular deviation D °, by fixture clockwise or be rotated counterclockwise D °;
2.6) again measure and adjust: repeating step 2.2) ~ step 2.5), until when measurement tolerance is within the scope of the build-up tolerance that joint allows, at joint and supporting conduit subscript note assembling angle.
2. a kind of method of determining angle for pipeline digitlization according to claim 1, is characterized in that, described step 1) in UG modeling specifically obtain by the following method:
1.1) UG software is utilized to obtain submodel spatial data:
The intersecting point coordinate needing processing tube assembly each section of center line is caught out, comprising the intersecting point coordinate at rotational angle of joint place and the coordinate of joint end face central point from UG design drawing;
1.2) UG software is utilized to set up submodel:
Adopt " the mechanical pipeline layout " function in UG software, will in step 1.1) in the friendship coordinate points coordinate input that catches, obtain the pure conduit UG modeling that joint is assumed to be one section of bend pipe by.
3. a kind of method of determining angle for pipeline digitlization according to claim 2, it is characterized in that, described step 1.1) in when catching out the intersecting point coordinate needing processing tube assembly each section of center line, by about joint angles to model be all reduced to the catheter models of 2 bending sections.
4. a kind of method of determining angle for pipeline digitlization according to claim 1, is characterized in that, described step 2.1) the supporting conduit of middle employing support supplemental support.
5. a kind of method of determining angle for pipeline digitlization according to claim 1, it is characterized in that, described step 2.3) Plays data and correction data meet manufacturing tolerance, then and chuck is qualified, if two groups of data do not meet manufacturing tolerance, then readjust supporting conduit.
6. a kind of method of determining angle for pipeline digitlization according to claim 5, is characterized in that, described manufacturing tolerance is ± 0.20mm.
7. a kind of method of determining angle for pipeline digitlization according to claim 1, is characterized in that, the four paws six that described fixture comprises for staple joint coils and index dial, and four paws six dish is arranged on index dial.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510695009.3A CN105345382B (en) | 2015-10-21 | 2015-10-21 | Method for digitally determining angular direction of pipeline |
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| CN201510695009.3A CN105345382B (en) | 2015-10-21 | 2015-10-21 | Method for digitally determining angular direction of pipeline |
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| CN105345382B CN105345382B (en) | 2017-03-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106354919A (en) * | 2016-08-26 | 2017-01-25 | 北京星航机电装备有限公司 | Digital and precise formation method for pipeline |
| CN112577386A (en) * | 2020-10-30 | 2021-03-30 | 中国航发沈阳黎明航空发动机有限责任公司 | Accurate control method for marking position of aircraft engine pipeline |
| CN115111453A (en) * | 2022-06-22 | 2022-09-27 | 四川航天长征装备制造有限公司 | Five-way joint size prediction method based on digital manufacturing |
| CN115502840A (en) * | 2022-08-11 | 2022-12-23 | 青岛高测科技股份有限公司 | Feeding control method and system for grinding machine, computer equipment and medium |
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| CN104714473A (en) * | 2014-12-04 | 2015-06-17 | 北京航空航天大学 | Conduit margin cutting position computing method for flexible pipeline welding and assembling |
| CN104729455A (en) * | 2014-12-04 | 2015-06-24 | 北京航空航天大学 | Pipeline flexible welding and assembling robot posture calculation method based on measurement data |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112577386A (en) * | 2020-10-30 | 2021-03-30 | 中国航发沈阳黎明航空发动机有限责任公司 | Accurate control method for marking position of aircraft engine pipeline |
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| CN115111453B (en) * | 2022-06-22 | 2023-06-30 | 四川航天长征装备制造有限公司 | Five-way joint size prediction method based on digital manufacturing |
| CN115502840A (en) * | 2022-08-11 | 2022-12-23 | 青岛高测科技股份有限公司 | Feeding control method and system for grinding machine, computer equipment and medium |
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO,LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE Corp.,PLC |
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AVIC AVIATION ENGINE Corp.,PLC Address before: Fengcheng Weiyang District ten road 710021 Shaanxi city of Xi'an Province Patentee before: XI'AN AVIATION POWER Co.,Ltd. |