Operating Key Dual Locking for Reliable Tool Holder Clamping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing tool holders in machine tools face challenges with secure and reliable loosening and tightening operations, often resulting in damage due to improper usage, especially in confined spaces with limited visibility.
Innovation Solution
A drive and locking device with a pin featuring first and second locking means that provide tactile feedback, ensuring correct insertion and preventing accidental disengagement, allowing for safe and error-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional operating key is used without locking means, then the device complexity is reduced, but the reliability of torque transmission deteriorates due to risk of improper engagement
Solution Approach 1:
The operating key is divided into a first section with first locking means and a second section with second locking means. Each section independently provides locking functionality at different engagement points, ensuring reliable torque transmission while maintaining a modular structure that doesn't excessively increase complexity.
Solution Approach 2:
The locking means are designed to automatically engage when the operating key is inserted into the actuating device. The first locking means engages with the first locking surface and the second locking means engages with the second locking surface, providing preliminary locking action before torque application begins, thus ensuring reliable engagement without requiring additional manual steps.
2Ease of operation
If the operating key is designed with simple structure, then the ease of manufacture is improved, but the operational safety deteriorates due to lack of tactile feedback for correct engagement
Solution Approach 1:
The first locking means provides tactile feedback when it engages with the first locking surface, and the second locking means provides tactile feedback when it engages with the second locking surface. This dual feedback mechanism confirms to the operator that the operating key is correctly and fully engaged with the actuating device, enhancing operational safety without requiring complex electronic or sensory systems.
Solution Approach 2:
Different locking means are positioned at different locations along the operating key's insertion path. The first locking means engages at an initial position while the second locking means engages at a final position, providing localized tactile feedback at each stage of engagement to guide the operator through the correct insertion sequence.
3Reliability
If a single locking mechanism is used, then the device complexity is reduced, but the reliability deteriorates due to inability to confirm full engagement
Solution Approach 1:
The locking function is segmented into two independent locking means: first locking means with first locking surface, and second locking means with second locking surface. Each locking pair provides independent confirmation of engagement, allowing the system to verify that the operating key is fully and correctly inserted into the actuating device before torque transmission begins.
Solution Approach 2:
The dual locking mechanism performs preliminary engagement verification before torque application. The first locking means engages first to confirm initial positioning, then the second locking means engages to confirm final positioning, creating a preliminary verification sequence that ensures full engagement reliability without requiring complex electronic verification systems.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a drive device for clamping and releasing a tool in the tool receiving area of a tool holder. The drive device according to the invention prevents incorrect operations. The drive device can be actuated manually or by a handling robot and can be actively locked to the tool holder.