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A method for evaluating the machining accuracy of building components

A technology for machining precision and building components, which is used in the field of detection and precision evaluation of objects with complex geometric shapes in space

Inactive Publication Date: 2011-12-07
SHANGHAI MECHANIZED CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The problem solved by the present invention is to solve the above-mentioned problems existing in the on-site measurement of the built building structures in the prior art, and propose a set of relatively simple, stable and effective methods to realize the evaluation of the manufacturing accuracy of complex components

Method used

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  • A method for evaluating the machining accuracy of building components
  • A method for evaluating the machining accuracy of building components
  • A method for evaluating the machining accuracy of building components

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Embodiment Construction

[0025] see figure 1 , 1 means selecting appropriate control points from the physical components and design documents, and collecting control data one by one. 2 means to classify the data in one-to-one correspondence and import them into the computer. 3 means to analyze the data as a whole and select the most reasonable coordinate conversion function. 4 means that the digital model of the physical component is transformed into the coordinate system made by the design model through the conversion function. 5 means that the machining accuracy of the solid component is obtained by analyzing the difference between each pair of control point data one by one.

[0026] see figure 2 , first of all, two sets of digital models of the physical component and component design need to be established respectively, and the selected control points need to correspond one-to-one. exist figure 1 Taking the box structure as an example, the corner points of the box can be selected as control p...

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Abstract

The invention relates to a method for detecting and evaluating the geometric accuracy of some undetermined measurement benchmarks or objects with complex shapes. It is characterized in that: select appropriate control points from the physical components and design documents respectively, and collect control data one by one, classify the data one by one, and import them into the computer, select the coordinate conversion function, and convert the physical components through the conversion function The digital model is converted to the coordinate system made by the design model, and the processing accuracy of the solid component is obtained by analyzing the difference between the data of each pair of control points one by one. The advantage of the present invention is that by adopting the method for evaluating the processing accuracy of building components of the present invention, the work of accurately evaluating the processing accuracy of building components with complex shapes can be completed.

Description

technical field [0001] The invention relates to a detection and precision evaluation technology for objects with complex geometric shapes in space, specifically to detect and evaluate the geometric precision of objects whose measurement benchmarks cannot be determined or whose shapes are complex. Background technique [0002] In current construction projects, it is often necessary to test the shape accuracy of components and judge whether they are qualified or not. Unqualified components will not only damage the building shape, but also affect the overall safety of the structure. Therefore, effective and accurate means must be adopted to do such a step of work. [0003] At present, the commonly used methods are nothing more than using measuring tools such as rulers and tapes or equipment such as total stations to collect data, and comparing these data with design drawings and corresponding normative documents to see if the deviation is within the allowable range Inside. ...

Claims

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Application Information

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IPC IPC(8): G01B21/00G01B21/04
Inventor 俞晓萌盛林峰
Owner SHANGHAI MECHANIZED CONSTR GRP
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