scholarly journals Correction to: Configuration optimization of the feature-oriented reference system in large component assembly

2021 ◽  
Author(s):  
Qi Zeng ◽  
Shuanggao Li ◽  
Xiang Huang
Keyword(s):  
Reference System ◽  
Configuration Optimization ◽  
Large Component ◽  
Component Assembly

Investigation of the Applicability of an iGPS Metrology System to Automate the Assembly in Motion of a Truck Cabin

2016 ◽  
Vol 840 ◽  
pp. 58-65 ◽  
Author(s):  
Robert Schmitt ◽  
Walter Kimmelmann ◽  
Stefan Quinders ◽  
Christoph Storm ◽  
Felix Oberhansberg
Keyword(s):  
Transport System ◽  
Production Line ◽  
Reference System ◽  
Direct Reference ◽  
Work Piece ◽  
Large Component ◽  
Handling System ◽  
First Results ◽  
Component Assembly ◽  
Metrology System

The assembly of large components is characterized by manual processes and customer-specified products. These are just two of the challenges for the efficient automation of assembly processes. In the field of large component assembly, the goal is to synchronize between the handling system and the moving work piece placed on an unguided transport system. One approach to solve this problem is a direct reference between the product and the assembled work piece. This referencing is done by using a global reference system in which every handling system can be referenced to every work piece throughout the whole production line. This article will show the first results using a global reference to track large components on an unguided conveyor. Moreover, it investigates the question if the metrology system, which was used here, is able to detect even small position deviations on higher frequencies.

High-Efficiency Posture Prealignment Method for Large Component Assembly via iGPS and Laser Ranging

2020 ◽  
Vol 69 (8) ◽  
pp. 5497-5510 ◽  
Author(s):  
Qi Zeng ◽  
Xiang Huang ◽  
Shuanggao Li ◽  
Zhengping Deng
Keyword(s):  
High Efficiency ◽  
Laser Ranging ◽  
Large Component ◽  
Component Assembly

Research on Mechanical Manufacturing with Posture Optimization of Installation of the Bolts in Large Component Assembly

2014 ◽  
Vol 1014 ◽  
pp. 81-85
Author(s):  
Peng Huang
Keyword(s):  
Simulation Experiment ◽  
Measurement Data ◽  
Optimization Method ◽  
Initial Distribution ◽  
Maximum Diameter ◽  
Large Component ◽  
Measuring Device ◽  
Pass Through ◽  
The Stability ◽  
Component Assembly

To improve the assembly efficiency, an optimization model is proposed to achieve the optimal posture of the component of the bolts installation. The component is measured and aligned by an automatic system, which consists of some NC locators and coordinate measuring device. Based on the measurement data of the bolt hole and the end surface, the maximum diameter of the bolt that can pass through the joint hole is obtained by using morphology theory. The particle swarm optimization method is adopted to solve this problem, and the stability and efficiency of the calculated results are improved by controlling the initial distribution of particles. The numerical simulation experiment shows that the proposed method would be helpful to guide the alignment and docking of large components.

Assimilation-error in tool use as a question of reference system

2011 ◽  
Author(s):  
S. Ladwig ◽  
C. Sutter ◽  
J. Musseler ◽  
K. Wendler ◽  
F. Bade
Keyword(s):  
Tool Use ◽  
Reference System

Centrosome: The Cell Spherical Reference System Organizer

2012 ◽  
Vol 3 (6) ◽  
pp. 80-83
Author(s):  
Marco Regolini ◽  
Keyword(s):  
Reference System

Technique for relation global reference system and local realization of global reference system by continuously operated reference stations

2020 ◽  
Vol 962 (8) ◽  
pp. 24-37
Author(s):  
V.E. Tereshchenko
Keyword(s):  
Coordinate System ◽  
Russian Federation ◽  
Reference System ◽  
Main Part ◽  
Precise Point Positioning ◽  
Global Coordinate System ◽  
Coordinate Systems ◽  
Novosibirsk Region ◽  
The Russian Federation

The article suggests a technique for relation global kinematic reference system and local static realization of global reference system by regional continuously operated reference stations (CORS) network. On the example of regional CORS network located in the Novosibirsk Region (CORS NSO) the relation parameters of the global reference system WGS-84 and its local static realization by CORS NSO network at the epoch of fixing stations coordinates in catalog are calculated. With the realization of this technique, the main parameters to be determined are the speed of displacement one system center relativly to another and the speeds of rotation the coordinate axes of one system relatively to another, since the time evolution of most stations in the Russian Federation is not currently provided. The article shows the scale factor for relation determination of coordinate systems is not always necessary to consider. The technique described in the article also allows detecting the errors in determining the coordinates of CORS network in global coordinate system and compensate for them. A systematic error of determining and fixing the CORS NSO coordinates in global coordinate system was detected. It is noted that the main part of the error falls on the altitude component and reaches 12 cm. The proposed technique creates conditions for practical use of the advanced method Precise Point Positioning (PPP) in some regions of the Russian Federation. Also the technique will ensure consistent PPP method results with the results of the most commonly used in the Russian Federation other post-processing methods of high-precision positioning.

Sign in / Sign up

Export Citation Format

Share Document