Insertion Tool Hub Self-Centering Interface for Precise Clamping
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Solution Overview
Problem
Existing tool interface devices for machine tools lack a reliable self-centering mechanism, leading to imprecise alignment and potential imbalance during rotation, which can compromise the safety and precision of operations.
Innovation Solution
The tool interface device incorporates a centering element with a centering contour angled relative to the connection interface's delimiting contour, combined with a torque transmission element, to achieve a self-centering function through torque action, ensuring precise alignment and balancing the tool interface device during rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional connection interface without centering elements is used, then the device complexity is reduced, but the alignment precision and self-centering capability deteriorate
Solution Approach 1:
The connection interface is designed to automatically self-center through the interaction between the angled centering contour and delimiting contour during the clamping process. The torque applied during securing automatically drives the self-centering action without requiring external centering mechanisms or additional adjustment steps, making the system self-sufficient for achieving precise alignment.
Solution Approach 2:
The centering contour is deliberately designed with an asymmetric angle relative to the delimiting contour. This asymmetric geometry creates a mechanical advantage where the torque applied during clamping automatically drives the connection interface into centered position. The angled configuration transforms the clamping force into a centering action, achieving precise alignment through geometric design rather than complex mechanical centering devices.
2Manufacturing precision
If centering elements with angled contours are added to achieve self-centering, then the alignment precision improves, but the ease of manufacture deteriorates
Solution Approach 1:
The centering elements are integrated directly into the connection interface structure as unified components. The centering contours and delimiting contours are formed as part of the same structural elements, eliminating the need for separate centering devices or additional assembly steps. This merging of functions into a single integrated design maintains manufacturing simplicity while achieving precise self-centering capability.
3Reliability
If a self-centering mechanism is implemented, then the reliability of operation improves, but the device complexity increases
Solution Approach 1:
The self-centering mechanism operates automatically through the inherent geometry of the connection interface. The angled centering contour works in conjunction with the delimiting contour to automatically correct misalignment during the normal clamping operation. This self-service approach eliminates the need for external centering devices, adjustment mechanisms, or additional control systems, maintaining operational reliability without significantly increasing device complexity.
4Extent of automation
If the centering contour is disposed at an angle to the delimiting contour, then the self-centering function is enhanced, but the manufacturing precision requirements worsen
Solution Approach 1:
The key parameter is the angle between the centering contour and delimiting contour. By optimizing this angular parameter, the design achieves effective self-centering through the mechanical interaction during clamping. The angled configuration transforms the clamping torque into a centering action, and by carefully selecting this angle parameter, the system achieves automatic self-centering while maintaining reasonable manufacturing tolerances for the contours.
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 design enables a largely automatic self-centering function, ensuring precise alignment and safe operation of the insertion tool on machine tools by counteracting imbalance and facilitating secure contact between rotary entrainment and torque transmission elements.
Implementation Method 1
a largely automatic self-centering function can be implemented as a result of a torque acting on the tool interface device
Data Source
AI summary
A tool interface device for an insertion tool for connecting the insertion tool to a tool holder of a machine tool includes at least one connection interface for a frictional and/or form-fitting connection to a quick clamping device of the tool holder. The connection interface includes at least one axial securing element for axial securing to the quick clamping device. The connection interface has at least one centering element with a centering contour that rests against the quick clamping device when the connection interface is disposed on the quick clamping device and that is disposed at an angle relative to a delimiting contour of the connection interface that delimits a through-opening of the connection interface.