Saw Blade Guide Pressing Mechanism for Play-Free Angle Setting
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Solution Overview
Problem
Conventional saw devices require manual user intervention for setting and fixing the angular position of the saw blade, leading to potential play and inaccuracies in machining.
Innovation Solution
A tool device with a pressing mechanism using a spring element to automatically reduce or eliminate play between guide sections, allowing for precise and reliable machining without additional user actions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual clamping mechanism is used to fix the saw blade position, then the play between guide section and guide structure is reduced, but the device complexity and ease of operation are worsened due to requiring separate user actuation
Solution Approach 1:
The pressing mechanism automatically presses the guide section against the guide structure using spring force, eliminating the need for manual clamping operations. The system serves itself by maintaining continuous contact pressure without user intervention, thus reducing play while simplifying operation.
Solution Approach 2:
The spring element pre-presses the guide section against the guide structure before any machining operation begins. This preliminary action ensures that the play is already reduced when the machine starts operating, eliminating the need for separate clamping steps.
2Reliability
If manual clamping mechanism is used to fix the saw blade position, then the play between guide section and guide structure is reduced, but the device complexity is worsened due to additional components and actuation mechanisms
Solution Approach 1:
The pressing mechanism uses the spring element's inherent elastic force to automatically maintain contact between the guide section and guide structure. This self-service approach eliminates complex actuation mechanisms, clamps, and fasteners that would otherwise be needed to achieve the same play reduction effect.
Solution Approach 2:
The invention extracts the essential function of reducing play from the complex manual clamping mechanism, leaving only the spring element to perform this function. By taking out the unnecessary clamping components and actuation mechanisms, the device complexity is significantly reduced while maintaining reliable play reduction.
3Ease of operation
If spring element is used for automatic pressing, then the ease of operation is improved by eliminating manual clamping, but the pressing force stability may be worsened due to spring deformation variations
Solution Approach 1:
The spring element's physical parameters (wire diameter, coil diameter, number of coils, material properties) are specifically designed and optimized to provide stable pressing force throughout the operational range. By carefully selecting and controlling these parameters, the pressing force stability is maintained despite spring deformation variations during operation.
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
The tool device ensures precise and reliable machining by automatically adjusting and fixing the saw blade position, reducing play and eliminating the need for manual clamping, thus simplifying operation.
Implementation Method 1
a pressing mechanism (21) which comprises a spring element (22) and which is designed to press the guide section (20) against the guide structure (18) with a pressing force (24) on the basis of a spring force (23) which is provided by the spring element (22)
Data Source
AI summary
A tool device including a stationary part and a shifting part which has a tool and which can be shifted relative to the stationary part and in the process carries out a shifting movement in order to set a position of the tool relative to the stationary part, and a guide means which is designed to guide the shifting part relative to the stationary part during the shifting movement. The guide means includes a guide structure that defines a movement path, and a guide part that rests on a guide contour of the guide structure and that can be moved along the movement path in order to carry out the shifting movement. The tool device includes a pressing mechanism which has a spring element which is designed to press the guide part against the guide structure, in order to reduce or eliminate play between the guide part and the guide.