Hydraulic Chuck Pressure Indicator for Real-Time Torque Monitoring
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Solution Overview
Problem
Hydraulic tool holders often lose fluid pressure over time due to wear or damage, leading to insufficient tool holding torque, which can result in inaccurate machine operation or accidents, and current health testing methods are time-consuming, unreliable, and costly.
Innovation Solution
A hydraulic tool holder with a pressure monitoring system that includes a piston assembly with a spring and visual indicator, where the indicator is only visible when adequate fluid pressure is reached, providing real-time feedback on the tool holding torque.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hydraulic tool holders are used to secure tools via fluid pressure, then tool holding torque is achieved, but fluid pressure is lost over time due to wear or damage
Solution Approach 1:
The patent applies preliminary action by implementing a visual indicator system that proactively alerts operators to declining fluid pressure conditions before they result in tool holding failures. The indicator provides advance warning, allowing operators to address pressure loss issues before they compromise tool security or safety.
Solution Approach 2:
The patent implements feedback through a visual indicator that continuously communicates the internal fluid pressure status to the operator. This feedback mechanism allows real-time monitoring of pressure conditions, enabling operators to respond appropriately to maintain reliable tool holding torque.
2Measurement precision
If current health testing methods are used to determine operational status, then fluid pressure status can be assessed, but the process is time consuming, unreliable and costly
Solution Approach 1:
The patent applies self-service by enabling the hydraulic tool holder to automatically indicate its own operational status through the visual indicator system. The device monitors and communicates its internal pressure condition without requiring external testing equipment or operator intervention, making the health assessment immediate, reliable, and cost-free.
Solution Approach 2:
The patent replaces complex mechanical testing systems with a simple visual indicator mechanism. Instead of using time-consuming external testing equipment, the system uses an integrated visual display that instantly communicates pressure status, eliminating the need for elaborate measurement apparatus and procedures.
3Reliability
If insufficient tool holding torque occurs due to pressure loss, then tool security is compromised, but detection and response are delayed
Solution Approach 1:
The patent applies preliminary action by providing advance warning of pressure loss through the visual indicator before tool security is compromised. This allows operators to address the issue proactively, preventing tool dropping or malfunction rather than reacting after a problem occurs.
Solution Approach 2:
The patent implements continuous feedback through the visual indicator that immediately reflects internal pressure conditions. This real-time feedback eliminates detection delays by constantly communicating the tool holder's operational status to the operator, enabling immediate response to pressure loss conditions.
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 ensures safe operation by alerting users to low-pressure conditions, allowing for timely replacement or repair and preventing accidents by providing a real-time indication of fluid pressure and tool holding torque.
Implementation Method 1
An elastic element of the piston assembly biases the piston pin into or toward the fluid chamber with a predetermined elastic force
Data Source
AI summary
A hydraulic tool holder comprises a body and a piston assembly. The body defines a fluid reservoir adapted to hold a fluid. The piston assembly comprises a piston pin movably arranged within the body and including a first end in communication with the fluid reservoir, and a visual indicator. An elastic element of the piston assembly biases the piston pin toward the fluid reservoir with a predetermined elastic force. The predetermined elastic force is selected such that the visual indicator is visible from an exterior of the body when a pressure of the fluid in the fluid reservoir reaches a predetermined minimum threshold level.