Woodworking Electrospindle Head with Integrated Tracer and Resting Member
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Solution Overview
Problem
Existing operating heads for processing wood components are complex, cumbersome, and expensive due to the use of complex copying and tracer devices, which increase their cost and size.
Innovation Solution
An operating head design that integrates an electrospindle with an anti-splinter block and a resting member, oriented by an electric motor with a tubular stator and cup-shaped rotor, which allows for precise control of the tool's position and force without the need for separate tracing or copying devices, using an encoder to detect and adjust the tool's position and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If separate tracing and copying devices are used to detect and control tool position, then measurement precision and control accuracy are improved, but device complexity and cost increase
Solution Approach 1:
The patent combines the tracer device and copying device functions into a single integrated assembly. The tracer member and copying member are merged into one component that performs both detection and control functions, eliminating the need for separate devices while maintaining measurement precision and control accuracy.
Solution Approach 2:
The integrated tracer-copying assembly serves multiple functions simultaneously: it detects the position of the workpiece surface, determines the desired tool path, and controls the tool position. This multi-functional design reduces device complexity while preserving measurement and control capabilities.
2Manufacturing precision
If independent tracer device is added to detect component position, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the tracer device with the existing operating head assembly, combining position detection functionality with the tool positioning system. This integration eliminates the need for completely independent tracer devices while maintaining manufacturing precision through coordinated control of the integrated assembly.
3Manufacturing precision
If complex copying devices are used to move tool along component profile, then manufacturing precision is improved, but device complexity and cost increase
Solution Approach 1:
The copying device is merged with the tracer device into a single integrated assembly that simultaneously performs surface profiling and tool path control. This combination maintains the ability to accurately follow surface profiles while reducing the complexity associated with separate copying mechanisms.
Solution Approach 2:
The integrated assembly serves as both a tracer for detecting surface geometry and a copier for reproducing that geometry onto the workpiece. This multi-functional approach maintains manufacturing precision while eliminating the need for complex dedicated copying devices.
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 design results in a simpler, cost-effective, and more compact operating head that eliminates the need for complex tracing and copying devices, reducing costs and complexity while maintaining precise control over the processing of wood components.
Implementation Method 1
an electric motor of a known type which is provided with an internal tubular stator 14, which is fitted on a free end of casing 4, and is angularly coupled and axially fixed to casing 4 itself, and an external rotor 15, which is substantially cup-shaped with concavity facing upwards, extends about stator 14 so as to rotate, with respect to stator 14, about axis 5
Implementation Method 2
The position of rotor 15 and, therefore, block 10 about axis 5 is detected by an encoder E mounted on rotor 15
Implementation Method 3
the assembly defined by the tool and the copying device is slidingly coupled to the second casing by interposing an elastic damping device which allows the tool and the copying device to move along the component as a function of the profile of the surface of said component
Data Source
Figure 1
Figure 2a~2d
Figure 3
AI summary
An operating head for processing wood components (2) or the like has an electrospindle (3) and a processing assembly (7; 18; 31), which is engaged on the electrospindle (3), is provided with a resting member (10; 25), and is adapted to be oriented, with respect to said electrospindle (3), about a rotation axis (5) so as to move the resting member (10; 25) to a position in which it is in contact with a component (2) being processed.