Modular Tool Insert Ejection Through Tenon Access Hole
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Solution Overview
Problem
The removal of inserts from modular tools is difficult due to firm clamping, making it challenging to replace them during machining operations.
Innovation Solution
A modular tool design featuring a tenon with a profile portion accessible through an access hole, allowing for ejection using a standardized assembly tool like a screwdriver, which engages with the profile to rotate the tenon and insert, facilitating easy removal without dismounting the tool from the tool mount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the insert is firmly clamped in the body to ensure correct machining, then the machining reliability is improved, but the ease of removing the insert deteriorates
Solution Approach 1:
The tenon is divided into functionally distinct segments: a clamping section with lateral surfaces for secure engagement during machining, and an ejection section with a profiled surface accessible through an access hole for removal. This segmentation allows the same component to fulfill both firm clamping and easy removal requirements through spatial differentiation of its features.
Solution Approach 2:
An access hole is introduced as an intermediary feature that provides passage for an ejection tool to reach the profiled surface on the tenon. This intermediary structure enables the removal function without compromising the clamping function, as the access hole allows tool insertion while the tenon remains firmly engaged with the receptacle during operation.
2Stability of the object's composition
If the insert is firmly clamped in the body, then the stability of the insert-position is improved, but the difficulty of ejecting the insert increases
Solution Approach 1:
The ejection function is extracted from the main body structure and implemented through a separate access hole and profiled surface combination. This allows the ejection mechanism to be simple and independent, requiring only a basic ejection tool inserted through the access hole to engage the profiled surface, without adding complex integrated mechanisms to the body.
Solution Approach 2:
Instead of providing a complex release mechanism within the receptacle to eject the insert, the solution inverts the approach by providing a simple access hole through which an external tool can engage the profiled surface of the tenon. The ejection action is applied from the outside in, rather than from the inside out, simplifying the overall mechanism.
3Reliability
If the tenon is completely enclosed in the receptacle for secure mounting, then the reliability of the connection is improved, but the accessibility for tool engagement deteriorates
Solution Approach 1:
The tenon exhibits local quality differentiation: the majority of its surface is enclosed or profiled for secure engagement with the receptacle, while a specific localized region features a distinct profiled surface that is accessible through the access hole. This local differentiation allows the tenon to maintain overall secure mounting while providing a specific access point for tool engagement and ejection.
Data Source
AI summary
The invention relates to a modular tool comprising a body and an insert for machining a workpiece, wherein the insert comprises a tenon for insertion into a receptacle of the body, wherein the body comprises an access hole, through which the tenon is accessible for an assembly tool, wherein the tenon comprises a profile portion, which, upon insertion of the assembly tool into the access hole, engages with a lateral surface of the assembly tool so that, by a rotation of the assembly tool, the insert can be ejected from the receptacle. Furthermore, a method for ejecting an insert of such a modular tool is specified.