Industrial Machine Speed Adjustment Using Jerk Exceedance Feedback
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing technologies face challenges in calculating jerk and supporting parameter adjustments for industrial machines due to limited calculation resources, leading to insufficient detection and notification of jerk exceedance, which can cause damage and reduce machine lifespan.
Innovation Solution
A speed adjustment support device calculates jerk per unit time and supports parameter adjustments by analyzing control programs, comparing calculated jerk with allowable values, and producing exceedance information to prevent jerk exceedance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If jerk calculation is performed by sequentially calculating temporal transition of speed, acceleration, and jerk through differential calculation, then measurement precision of jerk is improved, but calculation cost increases and requires large storage capacity
Solution Approach 1:
The patent pre-calculates and stores acceleration values at each position in the workpiece processing range before actual machining. During machining, jerk is calculated by simply comparing consecutive pre-stored acceleration values, avoiding the need for real-time differential calculation of position, velocity, and acceleration. This preliminary preparation significantly reduces real-time calculation complexity while maintaining accurate jerk measurement.
2Measurement precision
If jerk calculation is performed by sequential differential calculation, then measurement precision is improved, but processing time increases
Solution Approach 1:
Acceleration values are pre-calculated and stored in memory before machining begins. During actual machining, jerk calculation requires only a simple subtraction operation between consecutive pre-stored acceleration values, reducing calculation time from multiple sequential differential calculations to a single arithmetic operation.
3Reliability
If comprehensive jerk monitoring and analysis is implemented, then reliability of machine operation is improved, but device complexity increases
Solution Approach 1:
The system continuously monitors calculated jerk values and compares them against predetermined thresholds. When jerk exceeds the threshold, the system provides feedback by notifying the operator through display or alarm mechanisms. This feedback mechanism improves operational reliability by enabling timely intervention without requiring complex control systems, as it relies on simple threshold comparison and notification.
Data Source
AI summary
A speed adjustment support device calculates a jerk per unit time based on a difference in acceleration for each axis of an industrial machine between control cycles, compares the calculated jerk with an allowable jerk for each axis stored in advance, produces exceedance information including at least an exceeding state and an improvement means in a case of jerk exceedance as a result of the comparison, and supports work of adjusting a parameter related to speed of the industrial machine based on the exceedance information.