Press Machine Brake Verification via Automatic Stopping Time Analysis
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Solution Overview
Problem
Existing press machines lack an efficient method for automatically verifying braking performance, leading to potential unnoticed deterioration in braking performance due to operator neglect, especially during emergency stopping conditions.
Innovation Solution
A braking performance verifying apparatus equipped with speed detection, stopping instruction detection, stopping time measurement, maximum stopping time calculation, and evaluation means, which automatically measures and evaluates stopping times to ensure braking performance meets set thresholds, even in cases where manual checks are overlooked.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual mode verifying operation is performed with daily checks, then braking performance can be verified, but the operation is complicated and operator neglect can lead to unnoticed deterioration
Solution Approach 1:
The brake apparatus performs self-verification by automatically measuring its own stopping time using the speed detecting means and stopping time measuring means, eliminating the need for manual operator intervention and complex daily checking procedures
Solution Approach 2:
The evaluating means provides automatic feedback by comparing the measured stopping time against a threshold value, notifying the operator when braking performance deteriorates, thereby ensuring continuous monitoring without manual intervention
2Ease of operation
If automatic verification is implemented, then operator burden is reduced and timely detection is ensured, but device complexity increases
Solution Approach 1:
The speed detecting means serves dual purposes: it monitors slide driving speed during normal operation and measures stopping time during braking verification, eliminating the need for separate measurement devices and reducing overall system complexity
Solution Approach 2:
The verification functions (speed detection, stopping time measurement, evaluation) are integrated into the existing brake apparatus control system, combining multiple verification components into a unified system that leverages existing hardware resources
Data Source
AI summary
A press machine braking performance verifying apparatus verifies performance of brakes applying braking to a slide. The press machine braking performance verifying apparatus includes a speed detecting component, a stopping instruction detecting component, a stopping time measuring component, a maximum stopping time calculating component and an evaluating component. The speed detecting component detects a slide driving speed. The stopping instruction detecting component detects if stopping of the slide is instructed. The stopping time measuring component measures a stopping time until the slide stops when a stopping instruction is detected. The maximum stopping time calculating component calculates predicted stopping time in a case where the slide is driven at a maximum driving speed based on the slide driving speed after detecting the stopping instruction and the stopping time. The evaluating component evaluates performance of the brakes by comparing the predicted stopping time and a threshold valve set in advance.