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Large complex structural part assembling method

An assembly method and complex structure technology, applied in the direction of instruments, geometric CAD, design optimization/simulation, etc., can solve problems such as padding and repeated rework, and achieve the effect of improving success rate, assembly pass rate, and assembly efficiency

Pending Publication Date: 2021-01-26
内蒙古第一机械集团股份有限公司
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Problems solved by technology

[0003] The invention proposes a method for assembling large complex structural parts, which solves the problems of on-site matching and cutting, padding and repeated rework, and effectively improves the one-time success rate of assembly

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  • Large complex structural part assembling method

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Embodiment Construction

[0019] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, the concrete steps of a kind of assembly method of large complex structure of the present invention are as follows:

[0021] Step 1: Build a large-scale complex structural parts assembly resource library

[0022] The assembly resource library includes a part model database and a structural part library. The structural part library includes structural part dimension data (design data and measurement data), assembly tolerance, assembly sequence and assembly path, etc.

[0023] Firstly, the three-dimensional models of multiple batches of parts or components to be assembled and assembly tool fixtures are obtained through the laser three-dimensional scanner in the laser measurement system, and arranged and stored in the part model database. Then acquire and store the structural part dimension data, ass...

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Abstract

The invention relates to a large complex structural part assembling method. The assembling method comprises the following specific steps: 1, constructing a large complex structural part assembly resource library, wherein the assembly resource library comprises a part model database and a structural part library; 2, matching analysis is conducted, the corresponding structure sizes are compared oneby one, if disqualification occurs, batch parts are replaced, and the step 2 is repeated till matching is qualified; 3, virtually assembling, generating interference, replacing parts, reading unused data, and measuring new data if the existing data does not meet conditions; 4, analyzing the virtual assembly result, performing virtual assembly, judging whether gaps among the parts meet assembly tolerance or not, and performing virtual assembly if the gaps among the parts meet the assembly tolerance; and 5, outputting a result, wherein the output result comprises an assembly sequence, an assembly gap, an assembly constraint relationship and an assembly tolerance. The method solves the problems of repeated rework of matching and cutting, cushioning and the like on an assembly site, and effectively improves the one-time success rate of assembly.

Description

technical field [0001] The invention belongs to the technical field of mechanical assembly, and in particular relates to an assembly method of large complex structural parts. Background technique [0002] The existing large and complex structural parts (greater than 4 meters, 2.5 meters, 0.8 meters) have been assembled using special assembly table positioning, marking measurement, and manual adjustment methods. For the interference parts, manual cutting and trimming are used, the incision size accuracy is low, the quality is poor, and the place where the gap is too large needs to be padded, resulting in some rework during assembly. Repeated processing and trial assembly cannot be assembled at one time. Assembly process control and measurement rely on templates and labor, and the assembly table does not have the function of precise measurement of external dimensions. Dimensional accuracy detection mainly uses measuring tools such as steel rulers, templates, and height gauges....

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Application Information

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IPC IPC(8): G06F30/17G06F30/20G06F111/04G06F119/02
CPCG06F30/17G06F30/20G06F2111/04G06F2119/02
Inventor 高瑞杜劭峰马涛班永华杨羲昊武荣国张磊裴雨霞
Owner 内蒙古第一机械集团股份有限公司
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