Mobile Body Assembly Control for Retry at Second Stop Position
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Solution Overview
Problem
Existing technologies do not adequately address the failure of stop assembly processes in manufacturing mobile bodies, such as vehicles, where components are attached in a stopped state, leading to potential abnormalities and hindered movement.
Innovation Solution
A control device and method that instructs a mobile body to move to a second stop target position for reattempting assembly after a failure at a first stop target position, with information acquisition units detecting assembly success or failure and adjusting travel paths accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the mobile body stops at the first stop target position for assembly, then the component can be assembled to the mobile body, but the assembly may fail and the mobile body cannot proceed to the next process
Solution Approach 1:
The system prepares a second stop target position in advance as a backup location. When assembly fails at the first stop target position, the mobile body can immediately proceed to the pre-prepared second position without returning to the start or waiting for manual intervention, thus maintaining production flow while ensuring assembly success.
Solution Approach 2:
The system implements a feedback mechanism where the outcome of the assembly operation at the first stop target position is detected and used to determine the next action. If assembly succeeds, the mobile body proceeds to the next process; if it fails, the system triggers a retry at the second stop target position, creating a closed-loop control that ensures assembly reliability.
2Reliability
If the mobile body retries assembly at a different position, then assembly success rate improves, but the control system complexity increases
Solution Approach 1:
The assembly process is segmented into multiple independent stop target positions (first and second positions). Each position represents a discrete assembly attempt, allowing the system to isolate and retry specific assembly operations without affecting the entire production line. This segmentation simplifies the control logic by breaking down the complex retry process into manageable, independent steps.
3Manufacturing precision
If the component remains in contact with the mobile body during movement, then assembly position is maintained, but movement is hindered and abnormalities may occur
Solution Approach 1:
Before the mobile body moves from the first stop target position to the second stop target position, the assembly component is retracted to a predetermined position where it no longer contacts the mobile body. This preliminary retraction action prevents movement hindrance and potential abnormalities during transit, while the mobile body can still accurately position itself at the second stop target position for the retry assembly operation.
Data Source
AI summary
A control device for controlling assembling of a part to a moving body in a manufacturing process of a moving body that can be driven by unmanned operation, the control device comprising: a control command unit that instructs the moving body to stop at a first stop target position at which a stop assembling, which is an assembling of a part to a moving body that is stopped, is executed; and an information acquisition unit that acquires first information that is information on success or failure of the stop assembling, wherein the control command unit further instructs the moving body to move to a second stop target position, which is a position where the stop assembling is executed again, when first information related to the failure of the stop assembling at the first stop target position is acquired.