Oscillating Tool Chucking Device with Dynamic Transmission Ratio
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Solution Overview
Problem
Existing oscillating tool clamping devices lack flexibility in transmission ratios and movement conversion, leading to suboptimal operating convenience and protection of components during machining operations.
Innovation Solution
Incorporation of a transmission unit that adjusts transmission ratios based on movement components of the operating unit, featuring a pin-shaped tensioning element with a cam mechanism and a decoupling unit to manage movement and force distribution, along with a sensing element for precise movement control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fixed transmission ratio is used in the clamping device, then the structure is simple, but the operating convenience is reduced
Solution Approach 1:
The transmission unit dynamically changes the transmission ratio during the operating cycle of the clamping element. The transmission ratio is not fixed but varies as a function of the movement component (angular position) of the operating element, allowing optimal force transmission at different stages of the clamping operation while maintaining a relatively simple overall structure.
Solution Approach 2:
The transmission ratio parameter is changed as a function of the operating element's angular position. By varying the transmission ratio parameter throughout the operating cycle, the device achieves improved operating convenience without requiring a completely complex mechanism, as the change is achieved through the geometric relationship of existing components.
2Length of moving object
If the operating element rotates through a large angle, then the movement range is increased, but the force required to actuate the tensioning element increases
Solution Approach 1:
The transmission ratio changes dynamically during the rotation of the operating element, allowing a large angular movement range while keeping the actuating force within acceptable limits. The varying transmission ratio compensates for the increased movement range, ensuring that force requirements remain manageable throughout the entire operating cycle.
3Strength
If the clamping element is actuated with high force, then the clamping effectiveness is improved, but the service life of components is reduced
Solution Approach 1:
The transmission unit provides high clamping force when needed during the clamping cycle, but the force distribution varies dynamically throughout the operating cycle. This dynamic force distribution achieves effective clamping while reducing peak loads on individual components, thereby extending service life.
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
Enhances operating convenience by adapting transmission ratios and movement conversion, ensuring effective clamping and protecting components, thereby extending the service life of the tool clamping device.
Implementation Method 1
the transmission unit comprises at least one cam which, viewed along a course of the cam at at least two different points of the cam, has different gradients in the axial direction relative to one another
Data Source
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AI summary
The invention relates to a tool chucking device, especially an oscillation tool chucking device, comprising at least one chucking unit (12) which has at least one chucking element (14) for clamping a treatment tool (16) in an axial direction (18) and at least one control unit (20) for actuating the chucking element (14). According to the invention, the tool chucking device comprises at least one conversion unit (22) which is designed to modify a conversion ratio depending on at least one movement component of a control element (24) of the control unit (20).