Induction Coil Adjustment for Tool Holder Shrink Heating
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Solution Overview
Problem
Existing induction coil assemblies for heating tool holders require manual adjustment for various operating parameters, leading to longer cycle times and potential inefficiencies or tool holder damage if adjustments are incorrect.
Innovation Solution
Incorporating a detection device to automatically detect tool holder properties, an actuator device to adapt operating parameters, and a control unit to instruct adjustments, enabling automated operation and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of operating parameters is performed for each tool holder, then the induction coil assembly can be adapted to different tool holders, but the cycle times for tool exchange are significantly longer
Solution Approach 1:
The system automatically detects tool holder properties using sensors and autonomously adjusts operating parameters without requiring manual intervention. The control unit processes detected properties and self-regulates the induction coil assembly's operation, eliminating the time-consuming manual adjustment step while maintaining full adaptability to different tool holder types.
Solution Approach 2:
The patent replaces the manual mechanical adjustment system with an automated detection and control system. Sensors detect tool holder properties, and the control unit automatically adjusts operating parameters, substituting human-operated mechanical adjustment with an automated electromechanical system that reduces cycle times while preserving adaptability.
2Productivity
If manual adjustment is performed correctly, then efficient operation is achieved, but high degree of manual intervention is required
Solution Approach 1:
The system performs self-adjustment by automatically detecting tool holder properties and regulating its own operating parameters. This eliminates the need for manual intervention while maintaining efficient operation, as the control unit autonomously optimizes the induction heating process based on detected tool holder characteristics.
Solution Approach 2:
The system implements a feedback loop where sensors continuously detect tool holder properties, the control unit processes this information, and automatically adjusts operating parameters accordingly. This closed-loop control ensures efficient operation is maintained without manual intervention, as the system self-corrects based on real-time detection of tool holder variations.
3Extent of automation
If no adjustment or incorrect adjustment is made, then manual intervention is reduced, but the tool holder may overheat and be destroyed
Solution Approach 1:
The system automatically detects tool holder properties and self-regulates operating parameters to prevent overheating. By eliminating manual adjustment errors through automated detection and control, the system ensures safe operation without requiring human intervention, as the control unit autonomously prevents harmful overheating conditions.
Solution Approach 2:
The system performs preliminary detection of tool holder properties before initiating the heating process and continuously monitors during operation. By detecting tool holder characteristics in advance and pre-adjusting operating parameters, the system prevents overheating before it occurs, cushioning against potential damage through proactive control rather than reactive correction.
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
This solution reduces cycle times, enhances operational safety, and ensures proper operation by automatically optimizing the induction coil assembly's settings based on detected tool holder properties, improving reliability and efficiency.
Implementation Method 1
induction coil assembly must be individually adjusted with regard to various operating parameters to the tool holder currently held in it
Implementation Method 2
the eddy currents provided are not suitably induced in the tool holder
Implementation Method 3
thermally expand tool holders by means of alternating magnetic fields and the eddy currents induced in the tool holders as a result
Data Source
AI summary
An induction coil assembly for heating a free-ending sleeve section of a tool holder, which includes a receiving opening for a shank of a rotary tool and which holds the shank of the tool in the receiving opening in a press fit and releases it when heated, comprising: - a holding device for holding the tool holder during a heating process; - a coil arrangement enclosing the sleeve section during heating operation; and - a magnetic flux concentrator arrangement made of soft magnetic, essentially non-conductive material, which can be arranged at least near the free end of the sleeve section of the tool holder on the side of the coil arrangement adjacent to the free end of the sleeve section, characterized in that the assembly further comprises: - at least one detection device for automatically recognizing at least one property of the tool holder held by the holding device;- at least one actuator device for adjusting at least one operating parameter of the heating operation; and - a control unit which is in data communication with the at least one acquisition device for obtaining data relating to the tool holder and with the at least one actuator device for instructing an adjustment of the at least one operating parameter, wherein the control unit is configured to instruct an adjustment of the at least one operating parameter based on the detected at least one property of the tool holder.