Work Robot System for Dynamic Assembly on Moving Conveyor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional conveyor systems in production lines often need to be stopped for precise assembly of components to large objects, such as vehicle bodies, leading to inefficiencies in work processes.
Innovation Solution
A work robot system that includes a conveyor device, a work robot, a controller, sensors for detecting target part positions, and force detectors to perform precise operations while maintaining conveyor movement, enabling force control and improved assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the conveyer device is stopped for precise assembly of components to large objects, then manufacturing precision is improved, but productivity deteriorates
Solution Approach 1:
The system transitions from static assembly (conveyer stopped) to dynamic assembly (conveyer moving). The work robot moves along with the conveyer device while performing assembly operations, enabling precise component attachment during continuous conveyance without stopping the production line.
Solution Approach 2:
The conveyer device continues its movement throughout the assembly process without interruption. The work robot performs assembly operations while the conveyer maintains continuous motion, eliminating idle time and ensuring uninterrupted production flow from component attachment to completion.
2Productivity
If the work robot performs operations while the conveyer moves, then productivity is improved, but manufacturing precision deteriorates
Solution Approach 1:
The system employs detection devices to continuously monitor the position of the work object on the conveyer device. This feedback information is used by the work robot controller to adjust the robot's positioning and movement, ensuring precise assembly operations are maintained even during continuous conveyer motion.
Solution Approach 2:
The work robot performs preliminary positioning and alignment operations before the actual assembly. By detecting the object position in advance and pre-adjusting the robot's position, the system ensures that when the assembly operation occurs during conveyer motion, the necessary precision is already established.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system allows for continuous conveyor operation during assembly, enhancing work efficiency by enabling precise and controlled attachment of components to moving objects without stopping the conveyor, thus reducing downtime and improving production efficiency.
Implementation Method 1
a force detector configured to detect a force generated when the object comes into contact with one of a component and a tool that are supported by the work robot
Implementation Method 2
a sensor disposed at a predetermined position, and configured to detect a position of one of the target part on the object moved by the conveyer device and a detection target
Data Source
AI summary
A work robot system includes, a work robot configured to perform a predetermined operation to a target part on an object moved by a conveyer device, a work robot controller, a sensor disposed at a predetermined position, and configured to detect a position of a detection target on the object moved by the conveyer device, and a force detector that is used when force control is performed. When the predetermined operation is performed by the work robot, the work robot controller performs force control while controlling the work robot based on a detection result of the sensor.