Railway Vehicle Fitting Installation via 3D Measurement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The manufacturing of railway vehicles faces challenges in reducing manufacturing time due to welding deformations and the complexity of fitting installations, such as floor board and driver's cab adjustments, which require repeated operations and can lead to delays and issues like floor squeaking.
Innovation Solution
A method involving three-dimensional measurement to compute ideal installation positions and generate instructions for selecting and arranging adjustment members, allowing for precise fitting installation based on vehicle design and measurement data, thereby streamlining the fitting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If repeated adjustment and installation operations are performed during floor board installation, then fitting installation accuracy is improved, but manufacturing time is extended
Solution Approach 1:
The patent applies preliminary action by measuring the three-dimensional positions of floor supports and calculating adjustment amounts before floor board installation. This allows adjustment members to be prepared in advance with precise dimensions, eliminating the need for repeated on-site adjustments during installation. The adjustment amounts are determined beforehand based on measured data and design requirements, enabling one-time accurate installation.
2Ease of operation
If traditional measurement and adjustment methods are used for floor board installation, then ease of operation is maintained, but manufacturing efficiency is reduced
Solution Approach 1:
The patent replaces traditional mechanical measurement methods (using metallic straightedges and manual gauging) with three-dimensional measurement technology. This substitution enables automated data acquisition and processing, calculating precise adjustment amounts through computer algorithms based on measured coordinates and design models, thereby improving manufacturing efficiency while maintaining operational simplicity.
3Ease of manufacture
If adjustment members are not precisely calculated before installation, then ease of manufacture is improved, but fitting installation accuracy deteriorates
Solution Approach 1:
The patent applies preliminary action by measuring the three-dimensional positions of floor supports and calculating adjustment amounts before floor board installation. This allows adjustment members to be prepared in advance with precise dimensions, eliminating the need for repeated on-site adjustments during installation. The adjustment amounts are determined beforehand based on measured data and design requirements, enabling one-time accurate installation.
Solution Approach 2:
The patent uses the design model as a reference copy to compare against actual measured positions of floor supports. By calculating deviations from the design model coordinates, the system determines precise adjustment amounts needed to achieve accurate fitting installation, ensuring both ease of manufacture and high precision.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention aims at reducing a manufacturing time of a railway vehicle, and especially aims at executing an installation of a fitting in a short time. A method of manufacturing a railway vehicle includes a first step of computing an ideal installation position of a fitting to be installed on a body structure 12 , based on a vehicle design information related to the body structure 12 and the fitting of the vehicle, and a first measurement result information acquired by performing three-dimensional measurement of an adjustment portion 13 on the body structure 12 on which the fitting is installed, a second step of outputting an instruction information instructing selection of an adjustment member 13 to be arranged at the adjustment portion and arrangement position, based on an adjustment amount of difference at the adjustment portion computed from the ideal installation position of the fitting computed in the first step and the first measurement result information, and an information of adjustment member used for adjusting the difference when installing the fitting, and a third step of installing the fitting based on the instruction information.