Eccentric Tool Holder Clamping Device with Slotted Link Tensioning
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Solution Overview
Problem
Existing power tool clamping devices for sheet-type working tools, such as abrasive papers, face challenges in maintaining tension and preventing movement relative to the tool receiver during work, leading to suboptimal work results and reduced operating convenience.
Innovation Solution
The introduction of a slotted link movement unit that includes a clamping element and further slotted link movement elements, allowing for a combination of movements that generate tension in the sheet-type working tool, secured through a binding mechanism involving a pivotally mounted operating lever and spring elements, ensuring secure clamping and minimal movement relative to the tool receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional clamping device is used to clamp the sheet-type working tool, then the working tool can be secured to the tool receiver, but the working tool cannot maintain sufficient tension and may move relative to the tool receiver during work
Solution Approach 1:
The clamping element is designed to perform a complex movement sequence including translation along the guide groove and rotation about the guide groove axis. This dynamic movement allows the clamping element to first clamp the working tool and then rotate to apply tension, achieving both secure clamping and tension maintenance without requiring separate operations
Solution Approach 2:
The clamping and tensioning functions are merged into a single clamping element that performs both operations. The element combines clamping action (securing the tool) and tensioning action (applying force to prevent movement) in one integrated component, eliminating the need for separate mechanisms
2Adaptability or versatility
If the tool receiver is mounted in an eccentrically movable manner to enable movement during work, then the tool can adapt to workpiece contours, but the sheet-type working tool may experience excessive movement or slack
Solution Approach 1:
The clamping element applies preliminary tension to the sheet-type working tool before the tool receiver begins its eccentric movement during work. This pre-tensioning counteracts the potential slack or excessive movement that would occur during operation, ensuring the working tool remains taut despite the receiver's movement capability
3Device complexity
If a simple clamping mechanism is used, then the device complexity is reduced, but the ability to generate tension and prevent movement is insufficient
Solution Approach 1:
The movement of the clamping element is segmented into distinct phases: translation along the guide groove for clamping, and rotation about the guide groove axis for tensioning. This segmentation of motion allows a relatively simple mechanical structure to achieve complex functional outcomes including both secure clamping and effective tension generation
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 achieves high-quality work results by maintaining tension in the sheet-type working tool, enhancing operating convenience, and allowing for a compact and efficient clamping mechanism that prevents excessive movement during work operations.
Implementation Method 1
spring elements, ensuring secure clamping and minimal movement relative to the tool receiver
Data Source
AI summary
A machine tool clamping device for clamping a laminar machining tool to a tool holder that is eccentrically movably mounted includes at least one clamping unit with at least one movably mounted clamping element. The machine tool clamping device also includes at least one slotted link movement unit configured to move the clamping element in at least one operating state so as to generate tensile stress in the laminar machining tool.