The models of quality assurance in assembly process of complex mechanical products

2013 ◽  
Author(s):  
B. Wang ◽  
F. Yang
Keyword(s):  
Quality Assurance ◽  
Assembly Process ◽  
Mechanical Products

On a Kind of Applied Model Oriented Mechanical Assembly Process Simulation

2010 ◽  
Vol 431-432 ◽  
pp. 57-60 ◽  
Author(s):  
Jing Yan ◽  
Jian Xie ◽  
J.P. Li ◽  
Dan Zhang ◽  
Dun Wen Zuo
Keyword(s):  
Product Design ◽  
Real Time ◽  
Virtual Environment ◽  
Process Simulation ◽  
Assembly Process ◽  
Assembly Sequence ◽  
Mechanical Assembly ◽  
Applied Model ◽  
Mechanical Products ◽  
Assembly Constraints

A kind of model oriented assembly process simulation in WTK environment has been proposed. In the model, firstly, the assembly hierarchy of mechanical products can be presented clearly. Secondly, the assembly constraints between parts can be added to the model easily. At last, the assembly process information such as assembly sequence and path for each part can be recorded at real time in the model. Then, the converted method from PRO/E system to WTK environment about the mechanical product’s design information including geometric models, product design hierarchies and constraints has been discussed, which makes for easier building the model in the virtual environment.

A Database for the Representation of Assembly Features in Mechanical Products

1998 ◽  
Vol 08 (05n06) ◽  
pp. 483-507 ◽  
Author(s):  
Toni Jabbour ◽  
Christian Mascle ◽  
Roland Maranzana
Keyword(s):  
Functional Data ◽  
Object Oriented ◽  
Automatic Generation ◽  
Assembly Process ◽  
Oriented Structure ◽  
Assembly Sequences ◽  
Mechanical Products ◽  
Assembly Features ◽  
Solid Modeler

This paper deals with a representation of assembly features. Modeling the product at each stage of the assembly process, taking into account all pertinent geometrical, technological and functional data, distinguishes our model from the ones described in the literature. A representation such as this also greatly contributes to the designing of a system that includes the various stages in the development and manufacture of a product. To reach our goal, we let the user interactively input a set of features that cannot be supported by a solid modeler. The system automatically deduces other features pertaining to faces, parts and subassemblies. Given the object-oriented structure that we chose, the different features can be abstractly represented as object attributes. This can assist the method engineer in the automatic generation of assembly sequences or resources. Examples are given to validate the concept.

Data-Driven Tolerance Analysis for Products Assembly

2012 ◽  
Vol 590 ◽  
pp. 287-296
Author(s):  
Bao Zhong Wu ◽  
Jing Qiu ◽  
Guo Xi Li ◽  
Jing Zhong Gong ◽  
Xin Yin
Keyword(s):  
Dynamic Properties ◽  
Cloud Model ◽  
Tolerance Analysis ◽  
Measured Data ◽  
Data Driven ◽  
Assembly Process ◽  
Analysis Method ◽  
Analysis And Design ◽  
Mechanical Products ◽  
Cloud Model Theory

Tolerance characteristics have an important influence on products dynamic properties. To realize dynamic properties oriented tolerance analysis and design of mechanical products, a data-driven based tolerance analysis method was proposed. Firstly, based on the cloud model theory, an assemble cloud model was established, and a new method of assembly data processing and knowledge mining was proposed. Secondly, the assembly cloud model was used to analysis the measured data from practical assembly process and search the alignment laws. Finally, using the above mentioned methods, product key parts tolerance was analyzed and adjusted, and the product quality consistency could be improved dramatically.

Assembly Model Based on Dynamic Transition Graph for Satellite General Assembly Process Planning

2012 ◽  
Vol 430-432 ◽  
pp. 1542-1545
Author(s):  
Gang Sun ◽  
Jian Feng Yu ◽  
Yuan Li
Keyword(s):  
Assembly Sequence Planning ◽  
General Assembly ◽  
Planning Problem ◽  
Assembly Process ◽  
Transition Graph ◽  
Dynamic Transition ◽  
Matrix Operations ◽  
Assembly Sequences ◽  
Mechanical Products ◽  
Cut Set

Beginning with the disassembly of the semi-finished modules, the general assembly process of satellites is quite different from that of other mechanical products. This kind of disassembly-reassembly process cannot be solved by the widely used cut-set theory that only deals with linear problems, thus an approach called Dynamic Transition Graph (DTG) is proposed to solve this nonlinear assembly sequence planning problem. By analyzing and verifying possible assembly statuses hierarchically through matrix operations, a DTG is produced on the basis of Liaison Graph, where the DTG includes all the geometric feasible assembly sequences for the general assembly of satellite. Finally, the effectiveness of this method is verified by an example.

Computer Aided Assembly Process Planning

1992 ◽  
Vol 206 (1) ◽  
pp. 61-66 ◽  
Author(s):  
J M Henrioud ◽  
A Bourjault
Keyword(s):  
Process Planning ◽  
Global Structure ◽  
Interactive Software ◽  
Assembly Process ◽  
Product Modelling ◽  
Computer Aided ◽  
Mechanical Products ◽  
Precedence Conditions ◽  
Assembly Constraints ◽  
Precedence Graphs

A method allowing a systematic generation of assembly plans for mechanical products is presented. It involves a product modelling that includes non-assembly relevant features like labelling, checking, etc. Assembly plans are represented by assembly trees and are produced through interactive software written in PROLOG. An analysis of assembly constraints is also presented with a distinction between operative constraints dealing with the feasibility of the operations involved in the different assembly plans and the strategic constraints dealing with the global structure of the plans. An automatic transformation of the resulting assembly plans into one or several precedence graphs is given as well as a generalization of the classic precedence graphs in precedence hypergraphs able to represent disjunctive precedence conditions.

scholarly journals Human and Workcell Event Recognition and Its Application Areas in Industrial Assembly

2021 ◽  
pp. 260-275
Author(s):  
Matthias Propst ◽  
Sharath Chandra Akkaladevi ◽  
Michael Hofmann ◽  
Christian Wögerer ◽  
Andreas Pichler
Keyword(s):  
Quality Assurance ◽  
Demographic Change ◽  
Mass Customization ◽  
Context Awareness ◽  
Event Recognition ◽  
Assembly Process ◽  
Manual Assembly ◽  
Key Technology ◽  
Industrial Assembly ◽  
Assistance Systems

AbstractAssistance systems in production gain increased importance for industry, to tackle the challenges of mass customization and the demographic change. Common to these systems is the need for context awareness and understanding of the state of an assembly process. This paper presents an approach towards Event Recognition in manual assembly settings and introduces concepts to apply this key technology to the application areas of Quality Assurance, Worker Assistance, and Process Teaching.

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