CN103033156A - Three-coordinate measuring method and device with auxiliary three-dimension design module - Google Patents
Three-coordinate measuring method and device with auxiliary three-dimension design module Download PDFInfo
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- CN103033156A CN103033156A CN2012105194593A CN201210519459A CN103033156A CN 103033156 A CN103033156 A CN 103033156A CN 2012105194593 A CN2012105194593 A CN 2012105194593A CN 201210519459 A CN201210519459 A CN 201210519459A CN 103033156 A CN103033156 A CN 103033156A
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Abstract
The invention relates to a three-coordinate measuring method and a device with an auxiliary three-dimension design module. The three-coordinate measuring method and the device with the auxiliary three-dimension design module comprise that real coordinate values of an object to be measured are measured by a three-coordinate measuring machine; original features of the object to be measured are measured by a three-coordinate measuring module, and an original data module is formed; after the object to be measured is deformed, new features are measured by the three-dimension data module again, the original data module is exported and becomes a new data module; the original data module is imported to the three-coordinate measuring module and all unchanged original features are measured by the original data module; the new data module is replaced into positions of changed new features in the original data module by the three-coordinate measuring module; a theoretical coordinate data module is transformed into theoretical coordinate values by the three-dimension design module; real coordinate valves are compared with the theoretical coordinate values to adjust whether the object to be measured is qualified or not. The three-coordinate measuring method with the auxiliary three-dimension design module is adopted to ensure that real states of the measured features can be correctly reflected by offsets of actually measured values and theoretical coordinate values, and three-dimension measurement ranges are enlarged.
Description
Technical field
The present invention relates to a kind of three-coordinate measuring method, particularly auxiliary three-coordinate measuring method and the device of a kind of three-dimensional design module.
Background technology
Three-dimensional coordinates measurement is to obtain the actual XYZ coordinate value of feature in the space on the product by measurement, follows the characteristic theory XYZ coordinate value that obtains by product data model or drawing to compare, and judges by the deviation size between them whether product is qualified.Can access the actual coordinate value of feature with three coordinate measuring engine measurement, thereby it is just very important to obtain correct theoretical coordinate value.Can obtain correct theoretical value from product data model, drawing, feature just can be measured.Can not obtain correct theoretical value, feature just can not be measured, and data model is exactly the product model of making of three-dimensional software.
In three-dimensional coordinates measurement work, run into sometimes product and change, and product data model does not upgrade in time.Measure sometimes the special detection face of flush, clearance plane and testing product face on the cubing with product data model.With these features of three-dimensional coordinates measurement the time, because the theoretical coordinate value of actual measurement feature and the theoretical coordinate value not identical (theoretical position of measurement feature and data model on there be deviation in the theoretical position of individual features) of three-dimensional coordinates measurement with relevant position feature on the data model, cause obtaining correct theoretical value, measurement data is nonsensical.
The cubing flush is the detection faces of testing product trim lines length on the cubing, and it is cut edge with product and flushes.The cubing clearance plane is the detection faces of testing product profile tolerance of a surface on the cubing, and it is parallel with the detected face of product and have the gap of 5mm or 3mm.In general cubing design and the manufacturing, the assembly checking tool gap is 5mm, and single product punching press cubing gap is 3mm.
Summary of the invention
Technical matters to be solved by this invention provides a kind of by combine to obtain auxiliary three-coordinate measuring method and the device of three-dimensional design module of correct theoretical measured value with the three-dimensional design module.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: the three-coordinate measuring method that a kind of three-dimensional design module is auxiliary may further comprise the steps:
The three-coordinate measuring method that a kind of three-dimensional design module is auxiliary is characterized in that, may further comprise the steps:
Step 1: the actual coordinate value that the three coordinate measuring engine measurement object under test is to be detected;
Step 2: the three-dimensional coordinates measurement module is measured the former feature of the survey face to be detected of object under test, forms former data model;
Step 3: after the shape of object under test changed, the three-dimensional design module was opened former data model, remeasured the new feature that changes, and new feature is derived from the three-dimensional design module, became the new data model after the derivation;
Step 4: the three-dimensional coordinates measurement module imports former data model, utilizes former data model to measure the former feature that all do not change;
Step 5: the three-dimensional coordinates measurement module imports the new data model, and the new data model is substituted into the new feature place that changes in the former data model, forms the theoretical coordinate data model;
Step 6: the three-dimensional design module is converted into the theoretical coordinate value with the theoretical coordinate data model;
Step 7: actual coordinate value and theoretical coordinate value are compared, according to comparing result, judge whether object under test is qualified.
The invention has the beneficial effects as follows: in former measuring method, increase and utilize the three-dimensional design module to design the new data model, again the new data model is replaced the vicissitudinous feature of former data model, can obtain the correct theory measured value.
On the basis of technique scheme, the present invention can also do following improvement.
Further, the form of the new data model of described step 3 measurement is IGES form or STEP form.
The beneficial effect that adopts above-mentioned further scheme is that the format setting with the new data model is IGES form and STEP form, only has the file three-dimensional coordinates measurement module of these two kinds of forms to identify.
The Three-coordinate measurer that a kind of three-dimensional design module is auxiliary comprises the measuring machine measurement module, measures former data module, measures the new data module, imports module, replacement module, conversion module and judge module;
Described measuring machine measurement module is for the actual coordinate value of three coordinate measuring engine measurement object under test;
The former data module of described measurement is used for the three-dimensional coordinates measurement module and measures object under test, forms former data model;
Described measurement new data module is used for after the shape of object under test changes, and the three-dimensional design module is opened former data model, redesigns out the new feature that changes, and new feature is derived from the three-dimensional design module, and the new feature of derivation is the new data model;
Described importing module is used for the three-dimensional coordinates measurement module and imports former data model, utilizes former data model to measure the feature that all do not change;
Described replacement module is used for the three-dimensional coordinates measurement module and imports the new data model, and the new data model is replaced the feature that changes in the former data model, forms the theoretical coordinate data model;
Described conversion module is used for the three-dimensional design module theoretical coordinate data model is converted into the theoretical coordinate value;
Described judge module is used for actual coordinate value and theoretical coordinate value are compared, and according to comparing result, judges whether object under test is qualified.
The beneficial effect that adopts above-mentioned further scheme is to increase to utilize the three-dimensional design module to design the new data model in former measuring method, the new data model is replaced the vicissitudinous feature of former data model again, can obtain the correct theory measured value.
Further, the form of the new data model of described measurement new data module measurement is IGES form or STEP form.
The beneficial effect that adopts above-mentioned further scheme is that the format setting with the new data model is IGES form and STEP form, only has the file three-dimensional coordinates measurement module of these two kinds of forms to identify.
Description of drawings
Fig. 1 is the inventive method flow chart of steps;
Fig. 2 is apparatus of the present invention structural drawing.
In the accompanying drawing, the list of parts of each label representative is as follows:
1, measuring machine measurement module, 2, measure former data module, 3, measure the new data module, 4, import module, 5, replacement module, 6, conversion module, 7, judge module.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention and feature are described, institute gives an actual example and only is used for explaining the present invention, is not be used to limiting scope of the present invention.
As shown in Figure 1, be the inventive method flow chart of steps; Fig. 2 is apparatus of the present invention structural drawing.
Embodiment 1
The three-coordinate measuring method that a kind of three-dimensional design module is auxiliary may further comprise the steps:
Step 1: the actual coordinate value of three coordinate measuring engine measurement object under test;
Step 2: the three-dimensional coordinates measurement module is measured object under test, forms former data model;
Step 3: after the shape of object under test changed, the three-dimensional design module was opened former data model, redesigned out the new feature that changes, and new feature is derived from the three-dimensional design module, and the new feature of derivation is the new data model;
Step 4: the three-dimensional coordinates measurement module imports former data model, utilizes former data model to measure the feature that all do not change;
Step 5: the three-dimensional coordinates measurement module imports the new data model, and the new data model is replaced the feature that changes in the former data model, forms the theoretical coordinate data model;
Step 6: the three-dimensional design module is converted into the theoretical coordinate value with the theoretical coordinate data model;
Step 7: actual coordinate value and theoretical coordinate value are compared, according to comparing result, judge whether object under test is qualified.
The form of the new data model that described step 3 is measured is IGES form or STEP form.
The Three-coordinate measurer that a kind of three-dimensional design module is auxiliary comprises measuring machine measurement module 1, measures former data module 2, measures new data module 3, imports module 4, replacement module 5, conversion module 6 and judge module 7;
Described measuring machine measurement module 1 is for the actual coordinate value of three coordinate measuring engine measurement object under test;
The former data module 2 of described measurement is used for the survey face to be detected that the three-dimensional coordinates measurement module is measured object under test, forms former data model;
Described measurement new data module 3 is used for after the shape of object under test changes, and the three-dimensional design module is opened former data model, remeasures out the new feature that changes, and new feature is derived from the three-dimensional design module, becomes the new data model after the derivation;
Described importing module 4 is used for the three-dimensional coordinates measurement module and imports former data model, utilizes former data model to measure the former feature that all do not change;
Described replacement module 5 is used for the three-dimensional coordinates measurement module and imports the new data model, and the new data model is substituted into the new feature place that changes in the former data model, forms the theoretical coordinate data model;
Described conversion module 6 is used for the three-dimensional design module theoretical coordinate data model is converted into the theoretical coordinate value;
Described judge module 7 is used for actual coordinate value and theoretical coordinate value are compared, and according to comparing result, judges whether object under test is qualified.
The form of the new data model that described measurement new data module 3 is measured is IGES form or STEP form.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. the three-coordinate measuring method that the three-dimensional design module is auxiliary is characterized in that, may further comprise the steps:
Step 1: the actual coordinate value that the three coordinate measuring engine measurement object under test is to be detected;
Step 2: the three-dimensional coordinates measurement module is measured the former feature of the survey face to be detected of object under test, forms former data model;
Step 3: after the shape of object under test changed, the three-dimensional design module was opened former data model, remeasured the new feature that changes, and new feature is derived from the three-dimensional design module, became the new data model after the derivation;
Step 4: the three-dimensional coordinates measurement module imports former data model, utilizes former data model to measure the former feature that all do not change;
Step 5: the three-dimensional coordinates measurement module imports the new data model, and the new data model is substituted into the new feature place that changes in the former data model, forms the theoretical coordinate data model;
Step 6: the three-dimensional design module is converted into the theoretical coordinate value with the theoretical coordinate data model;
Step 7: actual coordinate value and theoretical coordinate value are compared, according to comparing result, judge whether object under test is qualified.
2. three-coordinate measuring method according to claim 1 is characterized in that: the form of the new data model that described step 3 is measured is IGES form or STEP form.
3. the Three-coordinate measurer that the three-dimensional design module is auxiliary is characterized in that: comprise measuring machine measurement module (1), measure former data module (2), measure new data module (3), import module (4), replacement module (5), conversion module (6) and judge module (7);
Described measuring machine measurement module (1) is for the actual coordinate value of three coordinate measuring engine measurement object under test;
The former data module of described measurement (2) is used for the survey face to be detected that the three-dimensional coordinates measurement module is measured object under test, forms former data model;
Described measurement new data module (3), be used for after the shape of object under test changes, the three-dimensional design module is opened former data model, remeasures out the new feature that changes, new feature is derived from the three-dimensional design module, become the new data model after the derivation;
Described importing module (4) is used for the three-dimensional coordinates measurement module and imports former data model, utilizes former data model to measure the former feature that all do not change;
Described replacement module (5) is used for the three-dimensional coordinates measurement module and imports the new data model, and the new data model is substituted into the new feature place that changes in the former data model, forms the theoretical coordinate data model;
Described conversion module (6) is used for the three-dimensional design module theoretical coordinate data model is converted into the theoretical coordinate value;
Described judge module (7) is used for actual coordinate value and theoretical coordinate value are compared, and according to comparing result, judges whether object under test is qualified.
4. Three-coordinate measurer according to claim 3 is characterized in that: the form of the new data model that described measurement new data module (3) is measured is IGES form or STEP form.
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| CN104864826A (en) * | 2014-02-25 | 2015-08-26 | 冯黎 | Intelligent measurement system based on part feature identification |
| CN105467927A (en) * | 2015-11-26 | 2016-04-06 | 江西昌河航空工业有限公司 | Registration and alignment-based lineation-free forging-casting part machining positioning method |
| CN105651216A (en) * | 2014-11-10 | 2016-06-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Coordinate system measurement method for blade parts without positioning datum plane |
| CN106482698A (en) * | 2016-09-28 | 2017-03-08 | 中船动力有限公司 | The measuring method of cam shaft for diesel engine profile tolerance |
| CN107144222A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Standard enlarged drawing measuring method, measurement apparatus and measuring system |
| CN110986849A (en) * | 2019-12-27 | 2020-04-10 | 大连瑞谷科技有限公司 | High-precision roller large sphere base surface measuring method |
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| CN103591912A (en) * | 2013-11-11 | 2014-02-19 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for measuring special-shaped characteristic position degree of annular part |
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| CN105651216A (en) * | 2014-11-10 | 2016-06-08 | 沈阳黎明航空发动机(集团)有限责任公司 | Coordinate system measurement method for blade parts without positioning datum plane |
| CN105651216B (en) * | 2014-11-10 | 2018-08-03 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of no positioning reference plane blade parts coordinate system measurement method |
| CN105467927A (en) * | 2015-11-26 | 2016-04-06 | 江西昌河航空工业有限公司 | Registration and alignment-based lineation-free forging-casting part machining positioning method |
| CN105467927B (en) * | 2015-11-26 | 2018-06-26 | 江西昌河航空工业有限公司 | It is a kind of that forging and casting processing positioning method of crossing is exempted from based on registration alignment |
| CN106482698A (en) * | 2016-09-28 | 2017-03-08 | 中船动力有限公司 | The measuring method of cam shaft for diesel engine profile tolerance |
| CN107144222A (en) * | 2017-06-28 | 2017-09-08 | 中国航发南方工业有限公司 | Standard enlarged drawing measuring method, measurement apparatus and measuring system |
| CN110986849A (en) * | 2019-12-27 | 2020-04-10 | 大连瑞谷科技有限公司 | High-precision roller large sphere base surface measuring method |
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