Oscillating Tool Drive Profile for Radial Coupling and Balance
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Solution Overview
Problem
Existing tools require axial plugging and complex fastening mechanisms for coupling with drive machines, limiting flexibility and ease of use, especially in terms of radial alignment and balance compensation.
Innovation Solution
The tool features a window frame with predetermined separation points, allowing for breakout sections to be formed and broken out, enabling radial plugging and alignment, and includes a compensation mass for balancing the drive section to offset the center of gravity, enhancing usability and alignment with the working section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the tool uses a closed window frame with positive engagement openings for axial coupling, then the coupling reliability is improved, but the ease of operation deteriorates due to requiring complex fastening mechanisms and axial alignment
Solution Approach 1:
The window frame is segmented with predetermined separation points that allow it to be broken open along predefined lines. This segmentation enables the frame to transition from a closed structure requiring axial coupling to an open structure allowing radial insertion, simplifying the attachment process while maintaining coupling reliability through the predefined engagement points.
Solution Approach 2:
Instead of inserting the drive shaft axially into a closed window frame as in conventional tools, the invention inverts the approach by providing predetermined separation points that allow the frame to be broken open radially. This inversion changes the coupling direction from axial to radial, eliminating the need for complex fastening mechanisms and improving ease of operation.
2Stability of the object's composition
If the tool requires axial plugging onto the output profile, then the coupling stability is improved, but the adaptability deteriorates due to limited flexibility in alignment and installation orientations
Solution Approach 1:
The window frame transitions from a static closed structure to a dynamic structure with predetermined separation points that can be selectively broken open. This dynamic characteristic allows the frame to adapt to different installation orientations and alignment requirements while maintaining stable coupling through the positive engagement openings, thereby improving both adaptability and coupling stability.
Solution Approach 2:
The invention changes the geometric parameter of the window frame from a fully closed configuration to one with predetermined separation points. This parameter change enables the frame to be opened radially along predefined lines, providing flexibility in alignment and installation orientations while maintaining coupling stability through the retained positive engagement points.
3Strength
If the window frame is made as a single continuous structure, then the structural strength is improved, but the ease of manufacture deteriorates due to inability to simplify assembly and attachment processes
Solution Approach 1:
The window frame is designed with predetermined separation points that segment the continuous structure into breakable sections. This segmentation maintains the overall structural strength of the frame while enabling simplified assembly and attachment processes, as the frame can be broken open along predefined lines without requiring complex fastening mechanisms, thereby improving ease of manufacture.
Data Source
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AI summary
The invention relates to a tool with a working section (1) for machining a workpiece and with a drive section (2) spaced therefrom and formed by a flat piece, which has a drive profile (4) for coupling to a driven profile of a drive machine with which the tool is used, in particular can be moved in an oscillating or rotating manner about an axis (5), the drive section (2) having a window (11) that is closed all the way round and in the region of the frame (12) of the window (11) positive-locking engagement openings (6 to 10) for engaging Has form-fitting engagement projections of the output profile. According to the invention, the frame (12) of the window (11) should have predetermined separation points (13 to 15) for breaking out a break-out section (16, 17). The predetermined separation points (13 to 15) are formed by webs that delimit a form-fitting engagement opening (9, 10). The break-out section can have two sections (16, 17) connected to one another at a predetermined separation point (15). Measures are also planned to shift the center of gravity towards the drive axle.