A three-dimensional design module-assisted three-coordinate measurement method and device
A technology of three-coordinate measurement and three-dimensional design, applied in measuring devices, instruments, etc., can solve problems such as meaningless measurement data and inability to obtain theoretical values
Active Publication Date: 2015-12-09
华域汽车车身零件(烟台)有限公司
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Problems solved by technology
When these features are measured with three coordinates, since the theoretical coordinate values of the actual measured features are not the same as the theoretical coordinate values of the corresponding position features on the data model for three-coordinate measurement (theoretical position of the measurement feature and the theoretical position of the corresponding feature on the data model There are deviations), resulting in the inability to obtain the correct theoretical value, and the measurement data is meaningless
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Embodiment 1
[0037] A three-dimensional design module-assisted three-coordinate measurement method includes the following steps:
[0038] Step 1: The three coordinate measuring machine measures the actual coordinate value of the object to be measured;
[0039] Step 2: The three-coordinate measurement module measures the object to be measured to form the original data model;
[0040] Step 3: After the shape of the object to be measured changes, the 3D design module opens the original data model, redesigns the changed new features, and exports the new features from the 3D design module, and the exported new features are the new data model;
[0041] Step 4: The three-coordinate measurement module imports the original data model, and uses the original data model to measure all unchanged features;
[0042] Step 5: The three-coordinate measurement module imports the new data model, and replaces the changed features in the original data model with the new data model to form a theoretical coordinate data mo...
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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 [0001] The invention relates to a three-coordinate measuring method, in particular to a three-coordinate measuring method and device assisted by a three-dimensional design module. Background technique [0002] Three-coordinate measurement is to obtain the actual XYZ coordinate values of the features on the product in space through measurement, and compare them with the theoretical XYZ coordinate values of the features obtained through the product data model or drawings, and judge whether the product is qualified by the deviation between them. The actual coordinate value of the feature can be obtained by measuring with a three-coordinate measuring machine, so it is very important to obtain the correct theoretical coordinate value. The correct theoretical value can be obtained from the product data model and drawings, and the characteristics can be measured. If the correct theoretical value cannot be obtained, the characteristics cannot be measured. The data mo...
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IPC IPC(8): G01B21/00
Inventor 辛树珍
Owner 华域汽车车身零件(烟台)有限公司