Tool Clamping Device With Lateral Guide Unit
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Solution Overview
Problem
Existing tool clamping devices for portable machine tools are limited in their ability to securely clamp and release machining tools without tools, especially in directions other than axial, and often require complex assembly and high costs.
Innovation Solution
A tool clamping device with a guide unit that allows movement in directions other than axial, featuring a one-piece clamping head and element design, eccentric arrangement, and a chamfered clamping surface for easy assembly and tool-free operation, enabling axial overlap and secure clamping without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional axial clamping mechanism is used, then the clamping force in axial direction is sufficient, but the tool cannot be inserted or removed without tools and with ease of operation
Solution Approach 1:
The operating element is designed to be actuated directly by the operator without requiring additional tools. The lever arm mechanism converts manual operational movement into axial clamping force, enabling tool-free assembly and disassembly while maintaining sufficient clamping force through mechanical advantage
Solution Approach 2:
The clamping element is designed to move from a released position to a clamped position along the axial direction when the operating element is actuated. This dynamic movement allows the transition between tool-free operation and secure axial clamping, resolving the contradiction between ease of operation and clamping effectiveness
2Ease of manufacture
If the clamping head and clamping element are designed as separate components, then assembly and disassembly are simpler, but the structural complexity and manufacturing costs increase
Solution Approach 1:
The clamping head and clamping element are designed as a one-piece component, integrating the clamping function and the operating element into a single manufactured part. This reduces the number of components, simplifies assembly procedures, and lowers manufacturing costs while maintaining the full clamping functionality through the integrated lever arm mechanism
3Ease of operation
If the clamping unit only allows axial movement, then the clamping force is concentrated, but the tool cannot be easily guided into position for tool-free operation
Solution Approach 1:
The guide unit introduces lateral guidance capabilities perpendicular to the axial clamping direction. This allows the tool to be easily guided into the correct position laterally before the axial clamping force is applied, enabling tool-free operation while maintaining precise axial positioning through the combined lateral guidance and axial clamping mechanism
Data Source
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AI summary
A tool clamping device, in particular an oscillating tool clamping device, includes a clamping unit that has at least one clamping element configured to securely clamp a working tool in an axial direction and at least one clamping head arranged on the clamping element and configured to clamp the working tool at a free end of the clamping unit. The clamping unit further includes a guiding unit configured to guide at least one movement of the working tool along at least one direction of movement that deviates significantly from the axial direction in at least one operating state.