Power Tool Bearing Arrangement for Tool Alignment Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hand-held power tools for machining workpieces face challenges in maintaining precise angular and longitudinal positions of cutting tools relative to the workpiece, especially when the guide element is adjusted by the operator, leading to potential deviations from the desired working direction.
Innovation Solution
The control device, in conjunction with the servo motor arrangement and bearing arrangement, allows for translational adjustments of the tool holder while maintaining its angular position, ensuring the cutting tool remains aligned with the working line and length, even when the guide element is adjusted, by incorporating linear and rotary bearings and servo motors to correct for operator-induced misalignments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the guide element is adjusted by the operator, then the working direction can be changed, but the angular position and longitudinal position of the cutting tool relative to the workpiece deviate from the desired position
Solution Approach 1:
The control device continuously monitors the position and orientation of the guide element and automatically adjusts the tool holder via the servo motor arrangement to compensate for any deviations, ensuring the cutting tool maintains its correct position and angle relative to the workpiece regardless of guide element adjustments
Solution Approach 2:
The tool holder acts as an intermediary between the guide element and the cutting tool. It is mounted on the guide element via the bearing arrangement but can be independently positioned by the servo motor arrangement, thereby decoupling the guide element adjustments from direct effects on the cutting tool position
Data Source
AI summary
A hand-held power tool for machining a workpiece, comprising a drive motor, a tool holder, which can be driven by the drive motor, and which is for a working tool for machining the workpiece, and a guide element having a guide surface for guiding the hand-held power tool on the workpiece in a working direction, wherein the tool holder is mounted via a bearing arrangement such that it moves relative to the guide element and the tool holder can be driven by a servo motor arrangement, wherein the hand-held power tool can be swivelled via the bearing arrangement about at least one adjusting swivel axis passing through the guide surface at an angle, in particular at a right angle, for the relative adjustment of the tool holder relative to the guide element, wherein the hand-held power tool has a control device for controlling the servo motor arrangement.