CN102141389A - Three-coordinate measuring method of tenon tooth blade - Google Patents
Three-coordinate measuring method of tenon tooth blade Download PDFInfo
- Publication number
- CN102141389A CN102141389A CN 201010553499 CN201010553499A CN102141389A CN 102141389 A CN102141389 A CN 102141389A CN 201010553499 CN201010553499 CN 201010553499 CN 201010553499 A CN201010553499 A CN 201010553499A CN 102141389 A CN102141389 A CN 102141389A
- Authority
- CN
- China
- Prior art keywords
- blade
- coordinate system
- tooth
- root
- virtual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention provides a three-coordinate measuring method of a tenon tooth blade, which solves the problems of unstable measuring data and the like caused by unfit point taking positions of measuring points when digital to analog fitting of three-coordinate measuring is carried out by a traditional tenon tooth blade. The three-coordinate measuring method comprises the following steps of, firstly, supplying a visual blade to a three-coordinate measuring procedure with the utilization of a UG (Unigraphics), wherein a measuring coordinate system and a visual blade coordinate system are automatically superposed by a three-coordinate measuring system; secondly, coarsely establishing a reference; thirdly, carrying out digital to analog fitting; and fourthly, checking the coincidence degree of the visual measuring coordinate system and the blade coordinate system after digital to analog fitting, repeating the digital to analog fitting process if the coincidence degree does not meet the requirements, and measuring and evaluating the blade if so. The three-coordinate measuring method is characterized in that iterative error radius is 0.03mm when the reference is coarsely established; the working surface of a first grain tooth of an inner-back arc at the root of the tenon tooth blade is uniformly divided into three parts, and two points are taken from each part; the working surface of a second grain tooth of the inner-back arc at the root is uniformly divided into three parts, and one point is taken from each part; and six points are taken from the locating side surface of a blade root, and a point is respectively taken from tooth depth of the first grain teeth of the inner arc and the back arc of the root near the steam inlet side surface and the air outlet side surface.
Description
Technical field
The present invention relates to the field of measuring technique of blade, be specially a kind of three-coordinate measuring method of tenon tooth blade.
Background technology
Along with the development of measuring technique, in the measurement of blade, adopt three-dimensional to detect in a large number at present, especially in first item inspection, three-dimensional detects and more and more plays a key effect.The three-dimensional coordinates measurement of general blade mainly is to finish by three coordinate measuring machine, when measuring by three coordinate measuring machine automatically the method by coordinate conversion set up measuring basis after with blade coordinate system and measurement coordinate system match and then measure, but because blade profile complexity, directly the virtual measurement coordinate system that obtains of the method for the coordinate conversion that carries with three coordinate measuring machine can not overlap well with the blade coordinate system, thereby influences the use of three-dimensional coordinates measurement.At this moment, can utilize the UG modeling software to provide a virtual blade for the three-dimensional coordinates measurement program, after the measuring system of three coordinate measuring machine imports the virtual blade model, automatically measurement coordinate system is overlapped with the coordinate system of virtual blade, and then the coordinate system and the blade coordinate system of virtual blade carried out coordinate conversion by 6 process of iteration, finish and slightly build benchmark, under the virtual measurement coordinate system of getting the point of some on the virtual blade, slightly setting up, on actual blade, measure these points again, finish the digital-to-analogue match.Because the smart virtual measurement coordinate system of building benchmark does not overlap with the blade coordinate system, there is difference between the measured value of measurement point and the theoretical value, this difference promptly embodies the misalignment between virtual measurement coordinate system and the blade coordinate system, calculate virtual measurement coordinate system translation and rotation by least square method, make the difference minimum, thereby realize that virtual measurement coordinate system overlaps with the optimum of blade coordinate system, these calculate the process of measurement that all carries and finish in three coordinate measuring machine.But in actual measurement, because workpiece can not be fully according to the theoretical size manufacturing, each surface of workpiece certainly exists the error with theoretical size, bringing the foozle of workpiece into least square method as the theoretical difference in the measuring method in the time of will appearing at the digital-to-analogue match like this calculates, make virtual measurement coordinate system produce wrong translation and rotation, cause virtual measurement coordinate system and workpiece coordinate system registration to reduce, influence precision.Therefore, measuring the three-dimensional coordinates measurement poor repeatability that tenon tooth blade tenon tingia sheet appears in tenon tooth blade often, same blade is repeatedly measured on same three coordinate measuring machine, its measurement result that obtains is inconsistent, the measurement report instability, and between the three-dimensional coordinates measurement result of tenon tooth blade and the measurement result under the conventional sense bigger difference is arranged.Therefore, when carrying out the digital-to-analogue match, choosing suitable point on workpiece is the key factor that influences the three-dimensional coordinates measurement precision.
Summary of the invention
At the problems referred to above, the invention provides a kind of three-coordinate measuring method of tenon tooth blade, it mainly solves in the past the tenon tooth blade when the digital-to-analogue match of carrying out three-dimensional coordinates measurement, owing to measurement point is got the inappropriate problems such as measurement data instability that cause in a position.
Its technical scheme is such, and it may further comprise the steps:
1, utilize the UG modeling software to provide a virtual blade for the three-dimensional coordinates measurement program, the three-dimensional coordinates measurement system overlaps with the virtual blade coordinate system measurement coordinate system after importing the virtual blade model automatically by coordinate transformation method;
2, slightly build benchmark: selected point utilizes 6 process of iteration of three coordinate measuring machine to carry out the coordinate conversion of virtual blade coordinate system and actual blade coordinate system on virtual blade, when the iteration error radius excessive, then on described virtual blade again selected point advanced slightly to build benchmark, meet the requirements up to the iteration error radius;
3, digital-to-analogue match: choosing measurement point on the virtual blade, the above measurement point of actual blade measured slightly building under the virtual measurement coordinate system of benchmark again;
4, after the digital-to-analogue match is finished, the virtual measurement coordinate system of benchmark and the registration of blade coordinate system are slightly built in examination, if registration is undesirable, then process is closed in the repeat number simulation,, registration imports the measuring method of blade assigned address if meeting the requirements, the measurement for Evaluation blade by computing machine;
It is characterized in that: described when slightly building benchmark, the iteration error radius is 0.03mm; Divide even three places on first tooth workplace of interior back of the body arc of tenon tooth root of blade, two points are got at every place; Divide even three places on second tooth workplace of interior back of the body arc of root, a point is got at every place; On side, blade root location, get six points, in first tooth tooth depth of the inner arc of root, back of the body arc, near admission, go out place, vapour two sides and respectively get a bit.
It is further characterized in that: the described benchmark of slightly building adopts 6 process of iteration, get three points as the XY face at the described virtual blade root root back of the body arc first tooth workplace, near the back of the body arc first tooth workplace root eminence is got two points as the YZ face, gets a point and obtain the XZ face on side, blade root location;
After described digital-to-analogue match is finished, the measured value of described measurement point and theoretical value compared obtain difference, if described difference is greater than 0.02mm, then described virtual measurement coordinate system and actual blade coordinate system registration are undesirable, need carry out the digital-to-analogue fit procedure again, be less than or equal to 0.02mm until described difference.
The three-coordinate measuring method of a kind of tenon tooth blade of the present invention, when it slightly builds benchmark by being controlled at the radius of iteration error and when the digital-to-analogue match error when on blade profile, choosing suitable measurement point and effectively control the digital-to-analogue match, guarantee the accuracy of measuring.
Description of drawings
Fig. 1 gets for tenon tooth blade root back of the body arc and a little sets up the benchmark synoptic diagram;
Fig. 2 gets with the side, location for tenon tooth blade root inner arc and a little sets up the benchmark synoptic diagram.
Embodiment
1, utilize the UG modeling software to provide a virtual blade for the three-dimensional coordinates measurement program, the three-dimensional coordinates measurement system overlaps with the virtual blade coordinate system measurement coordinate system after importing the virtual blade model automatically by coordinate transformation method;
2, slightly build benchmark: get three points as the XY face at the virtual blade root back of the body arc first tooth workplace, near the back of the body arc first tooth workplace root eminence is got two points as the YZ face, getting a point on side, blade root location obtains XZ face selected point and utilizes 6 process of iteration of three coordinate measuring machine to carry out the coordinate conversion of virtual blade coordinate system and actual blade coordinate system, when the iteration error radius greater than 0.03mm, then on described virtual blade again selected point advanced slightly to build benchmark, meet the requirements up to the iteration error radius;
3, digital-to-analogue match: divide even three places on first tooth workplace of interior back of the body arc of virtual tenon tooth root of blade, two measurement points 1 are got at every place; Divide even three places on second tooth workplace of interior back of the body arc of root, a measurement point 2 is got at every place; On side, blade root location, get six measurement points 3; In interior, back of the body arc first tooth tooth depth of root, measure 4, above-mentioned measurement point is slightly being built under the virtual measurement coordinate system of benchmark, the above-mentioned measurement point on the actual blade is being measured near respectively getting one into and out of place, vapour two sides;
4, the virtual measurement coordinate system of benchmark and the registration of blade coordinate system are slightly built in examination: if registration is undesirable, the measured value and the blade design theory value of each measurement point that the digital-to-analogue match is obtained compare, when the difference of measured value and theoretical value during greater than 0.02mm, show that then virtual measurement coordinate system and blade coordinate system registration are undesirable, process is closed in the repeat number simulation, otherwise then meet registration requirement, the measuring method by computing machine input blade assigned address, the measurement for Evaluation blade.
The three-coordinate measuring method of a kind of tenon tooth blade of the present invention, it is applicable to straight tenon tingia sheet and circular arc tenon tooth blade.
Claims (3)
1. the three-coordinate measuring method of a tenon tooth blade, it may further comprise the steps:
⑴ utilize the UG modeling software to provide a virtual blade for the three-dimensional coordinates measurement program, and the three-dimensional coordinates measurement system overlaps with the virtual blade coordinate system measurement coordinate system after importing the virtual blade model automatically by coordinate transformation method;
⑵ slightly build benchmark: selected point utilizes 6 process of iteration of three coordinate measuring machine to carry out the coordinate conversion of virtual blade coordinate system and actual blade coordinate system on virtual blade, when the iteration error radius excessive, then on described virtual blade again selected point advanced slightly to build benchmark, meet the requirements up to the iteration error radius;
⑶ digital-to-analogue match: choosing measurement point on the virtual blade, the above measurement point of actual blade measured slightly building under the virtual measurement coordinate system of benchmark again;
⑷ after digital-to-analogue match is finished, the virtual measurement coordinate system of benchmark and the registration of blade coordinate system are slightly built in examination, if registration is undesirable, then process is closed in the repeat number simulation,, registration imports the measuring method of blade assigned address if meeting the requirements, the measurement for Evaluation blade by computing machine;
It is characterized in that: described when slightly building benchmark, the iteration error radius is 0.03mm; Divide even three places on first tooth workplace of interior back of the body arc of tenon tooth root of blade, two points are got at every place; Divide even three places on second tooth workplace of interior back of the body arc of root, a point is got at every place; On side, blade root location, get six points, in first tooth tooth depth of the inner arc of root, back of the body arc, near admission, go out place, vapour two sides and respectively get a bit.
2. the three-coordinate measuring method of a kind of tenon tooth blade according to claim 1, it is characterized in that: the described benchmark of slightly building adopts 6 process of iteration, get three points as the XY face at the described virtual blade root root back of the body arc first tooth workplace, near the back of the body arc first tooth workplace root eminence is got two points as the YZ face, gets a point and obtain the XZ face on side, blade root location.
3. the three-coordinate measuring method of a kind of tenon tooth blade according to claim 1 and 2, it is characterized in that: after described digital-to-analogue match is finished, the measured value of described measurement point and theoretical value compared obtain difference, if described difference is greater than 0.02mm, then described virtual measurement coordinate system and actual blade coordinate system registration are undesirable, need carry out the digital-to-analogue fit procedure again, be less than or equal to 0.02mm until described difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553499 CN102141389A (en) | 2010-11-22 | 2010-11-22 | Three-coordinate measuring method of tenon tooth blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010553499 CN102141389A (en) | 2010-11-22 | 2010-11-22 | Three-coordinate measuring method of tenon tooth blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102141389A true CN102141389A (en) | 2011-08-03 |
Family
ID=44409068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010553499 Pending CN102141389A (en) | 2010-11-22 | 2010-11-22 | Three-coordinate measuring method of tenon tooth blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102141389A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944206A (en) * | 2012-11-29 | 2013-02-27 | 江苏省计量科学研究院 | Step positioning method for three-coordinate measurement of integral impeller |
| CN108120418A (en) * | 2017-12-28 | 2018-06-05 | 贵阳航发精密铸造有限公司 | A kind of measuring method of guide vane leaving area |
| CN109186991A (en) * | 2018-10-25 | 2019-01-11 | 四川绵竹鑫坤机械制造有限责任公司 | Vertical tree type blade root automatic Fitting and matched method |
| DE102017223711A1 (en) * | 2017-12-22 | 2019-06-27 | Siemens Aktiengesellschaft | Method for measuring a fir-tree-shaped blade root, measuring device and system comprising such a |
| CN112197696A (en) * | 2020-08-24 | 2021-01-08 | 北京卫星制造厂有限公司 | Load interface hole making template adjusting and testing method based on integral optimization algorithm |
| CN112192153A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Tenon tooth edge rounding method |
| CN112484600A (en) * | 2020-11-16 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for inspecting multi-tooth shrouded turbine blade in aircraft engine |
| CN112762840A (en) * | 2020-12-21 | 2021-05-07 | 中国航空工业集团公司北京航空精密机械研究所 | Method for measuring contour degree of mortise in three-coordinate mode |
| CN113701697A (en) * | 2021-07-06 | 2021-11-26 | 中国航发贵州黎阳航空动力有限公司 | Disc type part circumferential mortise detection method based on three coordinates |
| CN113983991A (en) * | 2021-10-11 | 2022-01-28 | 中国航发南方工业有限公司 | Blade tip arc measuring method of radial diffuser |
| CN114136251A (en) * | 2021-11-24 | 2022-03-04 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small proportion |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159418A (en) * | 1995-12-11 | 1997-06-20 | Sumitomo Heavy Ind Ltd | Method and equipment for measuring shape of three-dimensional curved surface molding |
| EP1077361A2 (en) * | 1999-08-16 | 2001-02-21 | General Electric Company | Methods and apparatus for measuring airfoil coordinates |
| CN1800777A (en) * | 2004-12-31 | 2006-07-12 | 上海萨克斯动力总成部件***有限公司 | Three-coordinate measuring method and apparatus for measuring complicated curved surface |
| CN1952599A (en) * | 2005-10-20 | 2007-04-25 | 中国科学院自动化研究所 | A flat leaf area nondestructive measuring system and method thereof |
| CN101403612A (en) * | 2007-10-04 | 2009-04-08 | 通用电气公司 | Method and system for measuring deformation in turbine blades |
-
2010
- 2010-11-22 CN CN 201010553499 patent/CN102141389A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09159418A (en) * | 1995-12-11 | 1997-06-20 | Sumitomo Heavy Ind Ltd | Method and equipment for measuring shape of three-dimensional curved surface molding |
| EP1077361A2 (en) * | 1999-08-16 | 2001-02-21 | General Electric Company | Methods and apparatus for measuring airfoil coordinates |
| CN1800777A (en) * | 2004-12-31 | 2006-07-12 | 上海萨克斯动力总成部件***有限公司 | Three-coordinate measuring method and apparatus for measuring complicated curved surface |
| CN1952599A (en) * | 2005-10-20 | 2007-04-25 | 中国科学院自动化研究所 | A flat leaf area nondestructive measuring system and method thereof |
| CN101403612A (en) * | 2007-10-04 | 2009-04-08 | 通用电气公司 | Method and system for measuring deformation in turbine blades |
Non-Patent Citations (1)
| Title |
|---|
| 《佳工机电网》 20100317 无锡透平叶片有限公司 榫齿叶片的三坐标检测方案的研究 , 2 * |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944206B (en) * | 2012-11-29 | 2015-07-15 | 江苏省计量科学研究院 | Step positioning method for three-coordinate measurement of integral impeller |
| CN102944206A (en) * | 2012-11-29 | 2013-02-27 | 江苏省计量科学研究院 | Step positioning method for three-coordinate measurement of integral impeller |
| DE102017223711A1 (en) * | 2017-12-22 | 2019-06-27 | Siemens Aktiengesellschaft | Method for measuring a fir-tree-shaped blade root, measuring device and system comprising such a |
| CN108120418A (en) * | 2017-12-28 | 2018-06-05 | 贵阳航发精密铸造有限公司 | A kind of measuring method of guide vane leaving area |
| CN109186991A (en) * | 2018-10-25 | 2019-01-11 | 四川绵竹鑫坤机械制造有限责任公司 | Vertical tree type blade root automatic Fitting and matched method |
| CN109186991B (en) * | 2018-10-25 | 2020-07-14 | 四川绵竹鑫坤机械制造有限责任公司 | Method for automatically fitting and matching longitudinal tree type blade root |
| CN112197696A (en) * | 2020-08-24 | 2021-01-08 | 北京卫星制造厂有限公司 | Load interface hole making template adjusting and testing method based on integral optimization algorithm |
| CN112192153B (en) * | 2020-09-29 | 2022-04-01 | 中国航发动力股份有限公司 | Tenon tooth edge rounding method |
| CN112192153A (en) * | 2020-09-29 | 2021-01-08 | 中国航发动力股份有限公司 | Tenon tooth edge rounding method |
| CN112484600A (en) * | 2020-11-16 | 2021-03-12 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for inspecting multi-tooth shrouded turbine blade in aircraft engine |
| CN112484600B (en) * | 2020-11-16 | 2021-12-24 | 中国航发沈阳黎明航空发动机有限责任公司 | Method for inspecting multi-tooth shrouded turbine blade in aircraft engine |
| CN112762840A (en) * | 2020-12-21 | 2021-05-07 | 中国航空工业集团公司北京航空精密机械研究所 | Method for measuring contour degree of mortise in three-coordinate mode |
| CN113701697A (en) * | 2021-07-06 | 2021-11-26 | 中国航发贵州黎阳航空动力有限公司 | Disc type part circumferential mortise detection method based on three coordinates |
| CN113701697B (en) * | 2021-07-06 | 2023-09-26 | 中国航发贵州黎阳航空动力有限公司 | Disk part circumferential tongue-and-groove detection method based on three coordinates |
| CN113983991A (en) * | 2021-10-11 | 2022-01-28 | 中国航发南方工业有限公司 | Blade tip arc measuring method of radial diffuser |
| CN114136251A (en) * | 2021-11-24 | 2022-03-04 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small proportion |
| CN114136251B (en) * | 2021-11-24 | 2024-05-10 | 中国航发贵州黎阳航空动力有限公司 | Method for detecting special size of cylindrical surface part with large radius and small duty ratio |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102141389A (en) | Three-coordinate measuring method of tenon tooth blade | |
| CN104289748B (en) | A kind of large thin-wall covering adaptively equal wall thickness milling system and its processing method | |
| CN101692257B (en) | Method for registering complex curved surface | |
| CN105467927B (en) | It is a kind of that forging and casting processing positioning method of crossing is exempted from based on registration alignment | |
| CN105425727B (en) | Five axis Flank machining cutter path method for fairing | |
| CN103777570B (en) | Mismachining tolerance quick detection compensation method based on nurbs surface | |
| CN103995496A (en) | Aircraft part high-precision matching component processing method based on digital measurement | |
| CN107247444B (en) | It is a kind of for generate curved surface without interference five-axis robot track projection algorithm | |
| Zhou et al. | An accurate, efficient envelope approach to modeling the geometric deviation of the machined surface for a specific five-axis CNC machine tool | |
| CN108120373A (en) | A kind of Complex Different Shape casting measurement inspection method based on laser tracking measurement | |
| CN105447910B (en) | A kind of aero-engine compressor blade tip defect three-dimensional rebuilding method | |
| CN110286650A (en) | A kind of blank based on numerical control macroprogram is in machine fast aligning method | |
| CN108115357A (en) | A kind of on-line machining method of blade of large-sized water turbine | |
| Barari | Inspection of the machined surfaces using manufacturing data | |
| CN102147221A (en) | Three-coordinate measuring method of blade with T-shaped root | |
| CN102930105B (en) | Accurate modeling method for worm gear | |
| CN104526462A (en) | Two-time clamping machining workpiece benchmark coincidence method | |
| CN102147244A (en) | Method for examining data file of curve surface reverse product | |
| Wen et al. | Accurate evaluation of free-form surface profile error based on quasi particle swarm optimization algorithm and surface subdivision | |
| CN107243715A (en) | The defect correcting method of one class precision castings blank | |
| Guan et al. | An improved positioning method for flank milling of S-shaped test piece | |
| CN110837715A (en) | Complex curved surface machining error compensation method based on reverse engineering technology | |
| CN106017326B (en) | Gantry drilling lathe positional accuracy evaluation method | |
| CN101920453A (en) | Method for machining spatial hole by using large ellipsoid on numerical control boring-milling machine | |
| CN106959667A (en) | A kind of lathe translation shaft error of perpendicularity modeling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110803 |