Shrink-Fit Tool Holder Recovery After Insertion Failure
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Solution Overview
Problem
Existing shrink fitting systems fail to continue the insertion process of tools into holders when the insertion is unsuccessful, leading to interruptions in the task.
Innovation Solution
A shrink fitting system equipped with a heating device, insertion device, and control device that includes sensors to detect insertion failures, allowing for adjustments in tool position, re-heating, and tool replacement to ensure successful insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shrink fitting method is used to insert tool into holder, then tool insertion speed and efficiency are improved, but the process stops completely when insertion fails
Solution Approach 1:
The patent implements a feedback mechanism where a sensor detects whether tool insertion was successful. When failure is detected, the control device receives this feedback and automatically initiates corrective actions (adjusting insertion position or replacing the tool), allowing the process to continue without manual intervention and maintaining both high efficiency and reliability.
Solution Approach 2:
The system performs self-diagnosis and self-correction when insertion fails. The control device automatically determines the cause of failure and executes appropriate corrective measures without requiring operator intervention, enabling the system to service itself and maintain continuous operation.
2Reliability
If sensor and control mechanisms are added to detect and handle insertion failures, then continuous operation capability is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical failure detection and correction mechanisms with a simpler sensor-based detection system and control logic. Instead of elaborate mechanical interlocks or manual detection procedures, an optical or proximity sensor combined with automated control programming achieves failure detection and response with minimal added complexity.
3Adaptability or versatility
If insertion position adjustment and tool replacement options are implemented, then adaptability to insertion failures is improved, but device complexity increases
Solution Approach 1:
The system dynamically adapts its behavior based on real-time detection of insertion failure conditions. The control device can switch between different response modes (adjust position, replace tool, or retry) depending on the specific failure scenario detected, making the system flexible and adaptable without requiring all possible correction mechanisms to be permanently configured.
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
Enables continuous tool insertion operations by detecting and addressing insertion failures, facilitating automation and reducing labor requirements in CNC processing machines.
Implementation Method 1
a holder support portion constituted of: a fitting projection that fits in a negative pressure forming portion so as to support the holder on the holder support portion
Implementation Method 2
The insertion device includes an elastic portion that is shrunk in response to a pressure applied to the tool
Data Source
AI summary
A task of insertion of a tool is continued even when the insertion of the tool is failed in a shrink fitting method. A shrink fitting system for shrink-fitting a tool to a holder includes: a heating device that heats the holder; an insertion device that inserts the tool into the heated holder; and a control device for the shrink fitting system. The insertion device includes a sensor that detects a failure of insertion of the tool into the holder. Based on the failure of the insertion of the tool into the holder being detected, the control device performs at least one of outputting, to the insertion device, a command for adjusting an insertion position of the tool or for replacing the tool and outputting, to the heating device, a command for re-heating the holder.