Quick-Clamping Tool Holder Interface for Vibration-Resistant Alignment
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Solution Overview
Problem
Existing quick-release clamping devices for tool holders in machine tools lack efficient mechanisms for secure, vibration-resistant, and easy attachment to holder receptacles, often resulting in improper alignment and increased tool holder deformation.
Innovation Solution
A quick-release clamping device featuring a tool holder with an external cone and shank-side flat bearing surface, engaging with a holder receptacle's internal cone and alignment surface, utilizing spring-loaded support elements and clamping bolts for stable, vibration-reducing attachment, and optional features like pins or polygonal drivers for precise orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional clamping mechanisms are used, then the tool holder can be attached to the holder receptacle, but the attachment lacks vibration resistance and security
Solution Approach 1:
The clamping mechanism is segmented into multiple independent clamping bolts distributed around the tool holder shank. Each bolt independently engages with corresponding clamping surfaces, providing distributed clamping force that enhances vibration resistance and attachment security without requiring a single complex clamping structure.
Solution Approach 2:
The clamping function and alignment function are merged into a single integrated mechanism. The clamping bolts simultaneously perform both alignment of the tool holder with the holder receptacle and secure clamping, eliminating the need for separate alignment and clamping mechanisms.
2Stability of the object's composition
If rigid clamping structures are used, then attachment stability is improved, but tool holder deformation increases
Solution Approach 1:
The clamping force is applied locally at specific clamping surfaces and contact points rather than uniformly across the entire tool holder. This localized clamping approach maintains attachment stability while minimizing deformation of the tool holder body and preserving manufacturing precision.
Solution Approach 2:
The clamping mechanism is designed with built-in compliance through the geometry of the clamping surfaces and bolt arrangement, which allows for slight elastic deformation that cushions against excessive clamping forces, preventing damage to the tool holder while maintaining stable attachment.
3Object-affected harmful factors
If multiple clamping points are added, then vibration resistance improves, but alignment precision deteriorates
Solution Approach 1:
The clamping bolts are asymmetrically positioned and sized, with different numbers and locations of bolts on different sides of the tool holder. This asymmetric arrangement provides enhanced vibration resistance in critical directions while maintaining precise alignment through strategically placed alignment surfaces and contact points.
Solution Approach 2:
Each clamping bolt serves multiple functions: it provides clamping force for vibration resistance, acts as an alignment reference, and ensures uniform distribution of loads. This multi-functionality allows multiple clamping points to work together without compromising alignment precision.
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
Ensures secure, vibration-resistant, and easily releasable attachment of tool holders, maintaining tool alignment and reducing deformation, while allowing for quick installation and removal without compromising stability or precision.
Implementation Method 1
A support element with a spring-loaded section, which can be compressed, is provided on an end face of the shank facing away from the outer cone
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A quick-release clamping device with a tool holder (1) and a holder receptacle (51) for a machine tool is described, wherein the tool holder (1) has a tool receptacle (3) for a tool and a shank (5), wherein a support element (27) with a spring area (29) is provided on an end face of the shank (5) facing away from the outer cone (9), which can be compressed.