Tool Chucking Device With Motion Conversion Unit
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Solution Overview
Problem
Existing tool clamping devices, particularly oscillating-tool clamping devices, face challenges in efficiently securing working tools on portable power tools without the need for additional tools, while allowing for easy tool changes and maintaining a compact design.
Innovation Solution
The tool clamping device incorporates a motion conversion unit that moves the clamping head in directions differing from the axial direction, utilizing a pin-shaped clamping element and a cam mechanism to achieve axial overlap and secure the tool, allowing for tool changes without tools and minimizing material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional axial clamping mechanism is used, then the tool can be secured firmly, but the device becomes complex and requires additional tools for tool changes
Solution Approach 1:
The clamping element is designed to dynamically change its functional state between axial clamping mode and radial expansion mode. The motion conversion unit enables the clamping element to automatically switch between these states based on operational requirements, eliminating the need for separate tool-free and secure clamping mechanisms
Solution Approach 2:
The clamping element changes its clamping direction parameter from axial to radial through the motion conversion unit. This parameter change allows the same element to perform both tool-free insertion (axial) and secure clamping (radial) functions, reducing device complexity while improving ease of operation
2Volume of moving object
If material is reduced for compact design, then the device becomes more compact, but the durability and strength may be compromised
Solution Approach 1:
The clamping element is segmented into multiple functional regions: a clamping head for tool contact, a motion conversion section for directional change, and a drive section for actuation. This segmentation allows each region to be optimized for its specific function while maintaining overall compactness and durability
Solution Approach 2:
The segmented design enables dynamic load distribution across different regions during operation. The motion conversion unit dynamically transfers forces between axial and radial directions, allowing the compact structure to maintain high reliability under varying operational loads
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 easy and tool-free chucking and release of working tools, reduces material usage, and provides a compact, long-lasting tool clamping solution that enhances operating comfort and efficiency.
Implementation Method 1
the motion conversion unit has a cam member, in which the motion conversion element engages, at least partially
Data Source
AI summary
A tool chucking device, especially an oscillation tool chucking device, includes at least one chucking unit which has at least one pin-type chucking element for clamping a treatment tool in an axial direction and at least one grip head arranged on the chucking element. The tool chucking device further includes at least one movement conversion unit which is designed to displace at least the grip head at least substantially along the axial direction into at least one direction different from the axial direction depending on the movement of the chucking element.