Tool Unit Pre-Positioning with Pivoted Angular Alignment
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Solution Overview
Problem
Current woodworking machines require significant design and manufacturing effort to align tool assemblies at predetermined angular positions relative to the spindle axis, resulting in high costs.
Innovation Solution
A tool positioning device with a pivotably mounted receiving device and pivot drive allows for the exchangeable tool assembly to be prepositioned in various angular orientations relative to the spindle axis, using a torque support recess for non-rotatable mounting and a holding device for secure fixation, enabling cost-effective alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a tool assembly is positioned with the aid of a support part rotatable coaxially to the spindle axis, then the tool assembly can be aligned in a predetermined angular position relative to the spindle axis, but this requires a considerable design and manufacturing effort and is therefore associated with considerable manufacturing costs
Solution Approach 1:
The device is divided into two independent parts: a work spindle with tool holder and a separate receiving device with pivot drive. The receiving device can be manufactured independently with standardized components, reducing overall design and manufacturing complexity while maintaining precise angular positioning capability.
Solution Approach 2:
A receiving device acts as an intermediary between the work spindle and the final tool assembly positioning. This receiving device with its pivot drive mechanism provides the angular positioning function separately, allowing the work spindle to remain simple and reducing the manufacturing effort for the main machining components.
2Manufacturing precision
If a tool assembly is positioned with the aid of a support part rotatable coaxially to the spindle axis, then the tool assembly can be aligned in a predetermined angular position relative to the spindle axis, but this is associated with considerable manufacturing costs
Solution Approach 1:
By segmenting the positioning function into a separate receiving device with pivot drive, the complex angular positioning mechanism can be manufactured as a standardized module. This reduces the manufacturing costs of the main work spindle and tool holder, while the receiving device can be produced more economically using simpler, modular components.
3Stability of the object's composition
If the tool assembly is mounted non-rotatably on the receiving device, then the angular position is fixed, but this requires a torque support recess for positioning
Solution Approach 1:
The torque support on the tool assembly and the corresponding recess in the receiving device create a self-positioning mechanism. The torque support automatically engages with the recess at the correct angular position, providing both non-rotatable mounting and angular positioning without requiring additional complex adjustment mechanisms or multiple components.
Data Source
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AI summary
In order to align a tool unit (54) in a predetermined angular position relative to a spindle axis in a cost-effective manner, a tool positioning device (50) is proposed which has a receiving device (52) pivotably mounted about a pivot axis (98) for receiving the tool unit (54) and a swivel drive (104) for swiveling the receiving device (52) about the swivel axis (98) into predetermined angular positions, wherein the tool unit (54) can be exchanged in the work spindle (30) in different orientations relative to the work spindle (30) by means of the tool positioning device (50). is. A woodworking machine (10) with such a tool positioning device (50) is also proposed.