Workpiece Moving Device Controller Time Constant Adjustment
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Solution Overview
Problem
Existing control systems for workpiece moving devices and robots often result in excessive acceleration during non-processing operations, leading to position displacement of the workpiece, due to a lack of adjustable time constants for acceleration and deceleration.
Innovation Solution
A control device that adjusts the time constants for the workpiece moving device's acceleration and deceleration during non-processing operations to be longer than those during processing operations, ensuring a more controlled and synchronized operation between the robot and the workpiece moving device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the workpiece moving device is accelerated or decelerated during non-processing operations, then the operation speed increases or decreases, but the acceleration becomes excessively large causing position displacement of the workpiece
Solution Approach 1:
The patent applies dynamics by making the time constant adjustable based on the operation mode. The control device switches between a first time constant during workpiece processing operations and a second time constant during non-processing operations, allowing the acceleration and deceleration characteristics to adapt dynamically to different operational requirements while maintaining position precision
Solution Approach 2:
The patent changes the time constant parameter according to the operation type. By setting different time constant values (first time constant for processing operations, second time constant for non-processing operations), the system optimizes both speed response and position precision for each operational context
2Productivity
If the time constant for acceleration and deceleration is shortened to increase productivity, then the operation cycle time is reduced, but the position displacement of the workpiece increases
Solution Approach 1:
The system dynamically adjusts the time constant based on whether the operation is a workpiece processing operation or a non-processing operation. This allows the system to optimize for productivity during processing while maintaining position precision during movement operations
Solution Approach 2:
Different time constant parameters are applied according to the operation type, enabling the system to achieve both high productivity and high position precision by matching the appropriate time constant to each operational phase
Data Source
AI summary
This control device is able to prevent the position displacement of a workpiece supported by a workpiece moving device. The control device includes a workpiece moving device controller configured to control the workpiece moving device wherein a time constant corresponding to a time period from a commencement to an termination of acceleration and deceleration of the workpiece moving device is longer for causing the robot and the workpiece moving device to perform an operation other than the workpiece processing operation, compared with the time constant for performing a workpiece processing operation in which the robot and the workpiece moving device perform work on the workpiece in cooperation with each other.