Robot Distance Control for Coating Sharp Surface Inclinations
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Solution Overview
Problem
Existing robot control systems face challenges in efficiently applying liquid materials to surfaces with irregularities, as distance sensors can fail to provide accurate data when sharp inclinations are present, leading to frequent interruptions and inefficient processing.
Innovation Solution
A control device for robots that includes a control section and a reception section, allowing the robot to stop or continue moving based on distance measurement outputs, enabling continuous operation even when the distance or rate of change exceeds a preset range, thereby adapting to irregular surface shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the robot stops moving when distance or rate of change falls outside reference range, then measurement reliability is improved, but productivity deteriorates
Solution Approach 1:
The system dynamically switches between two operational modes: a first mode where the robot stops when distance measurements fall outside reference ranges, and a second mode where the robot continues moving. This dynamic adaptability allows the system to balance measurement reliability with processing efficiency based on the specific characteristics of the target object surface.
Solution Approach 2:
The system changes the operational parameter (stop/continue decision) based on the measured distance and rate of change. By monitoring these parameters and comparing them against reference ranges, the system determines whether to maintain measurement accuracy by stopping or to maintain productivity by continuing movement.
2Productivity
If the robot continues moving when distance or rate of change falls outside reference range, then productivity is improved, but measurement precision deteriorates
Solution Approach 1:
The system dynamically selects between continuing movement (second setting) or stopping (first setting) based on real-time distance measurements and rate of change calculations, allowing flexible adaptation to different surface conditions while maintaining overall processing efficiency.
Solution Approach 2:
The system performs preliminary calculations of the rate of change of distance before making the stop/continue decision. This preliminary action allows the system to anticipate potential measurement issues and make informed decisions about whether to continue moving or stop, balancing productivity with measurement quality.
3Manufacturing precision
If the robot follows surface shape with coating nozzle, then coating precision is improved, but device complexity increases
Solution Approach 1:
The system uses feedback from distance measurements to control the robot's movement. By continuously monitoring the distance between the coating nozzle and target object surface, and calculating the rate of change, the system adjusts its movement to maintain appropriate coating conditions without requiring complex mechanical adaptations.
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
This solution allows for continuous and efficient application of materials to surfaces with sharp inclinations by controlling the robot's movement based on predefined settings, reducing interruptions and improving processing efficiency.
Implementation Method 1
a distance measurement section measuring a distance between the target object and the work section
Data Source
AI summary
Provided is a control device controlling a robot having a movable section to which a work section, performing work on a target object, is attached and which moves the work section. The control device includes a control section receiving an output from a distance measurement section measuring a distance between the target object and the work section and controlling the movable section in accordance with a plurality of settings including a first section and a second section and a reception section selectively receiving (a) the first setting in which, when the work section is being moved by the movable section based on an output from the distance measurement section, the control section stops moving the work section when the distance or a rate of a change of the distance falls outside a preset reference range and (b) the second setting in which, when the work section is being moved based on the output from the distance measurement section, the control device continues to move the work section not based on the output from the distance measurement section when the distance or the rate of change falls outside the reference range.