3D Wire Bending Device for Electric Machine Components
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Solution Overview
Problem
Existing 3D bending technologies for electrical machine components require multiple contour tools for different shapes, leading to increased manufacturing complexity and cost, and struggle with adaptability to varying machine element designs.
Innovation Solution
A 3D bending device and method utilizing a system of holding elements and relative movement devices to twist and position wire legs with three degrees of freedom, allowing for independent adjustment of torsion angles and distance between legs without the need for separate contour tools, facilitated by a controller for precise movement control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple contour tools are used for different wire shapes, then manufacturing precision for various machine elements is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent implements a single universal bending device that can produce multiple wire shapes by dynamically adjusting bending parameters such as bending angle, bending radius, and bending position. The device uses a controllable bending element that can be positioned and oriented differently to create various wire configurations, eliminating the need for multiple dedicated contour tools while maintaining manufacturing precision across different wire shapes.
Solution Approach 2:
The bending device incorporates dynamic adjustment capabilities where the bending element's position, orientation, and curvature can be changed during operation. This allows the same physical device to adapt to different wire shape requirements by modifying its bending parameters in real-time, rather than requiring separate static tools for each wire configuration.
2Manufacturing precision
If separate contour tools are manufactured for each contour, then manufacturing precision for specific shapes is improved, but ease of manufacture and adaptability deteriorate
Solution Approach 1:
Instead of manufacturing separate contour tools for each wire shape, the patent employs a single bending device with programmable control. The device achieves different contours by adjusting bending parameters through software control, significantly reducing tool manufacturing effort while maintaining the ability to produce precise wire shapes as required.
Solution Approach 2:
The bending device changes its operational parameters (bending angle, radius, position, speed) to produce different wire shapes. This parameter-based approach eliminates the need to manufacture different physical tools for each shape, making the manufacturing process more adaptable and easier to implement while preserving contour accuracy through controlled parameter adjustments.
3Adaptability or versatility
If multiple contour tools are used for different shapes, then adaptability to varying machine element designs is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent creates a universal bending device capable of producing multiple wire shapes through programmable control and dynamic parameter adjustment. This single device replaces an inventory of multiple specialized contour tools, reducing device complexity while maintaining or enhancing adaptability to different machine element designs through software-controlled bending variations.
Solution Approach 2:
The bending device incorporates dynamic reconfiguration capabilities that allow it to adapt to different wire shape requirements on-demand. By dynamically adjusting bending parameters rather than requiring physical tool changes, the device achieves high adaptability to varying machine element designs while keeping the tool inventory minimal.
Data Source
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AI summary
To simplify commissioning and parameter changes during 3D bending of wires (10), the invention provides a 3D bending device (46) and a 3D bending method for bending a wire (10), in which the wire (10) is held at a first leg (12) and a second leg (14) and the legs (12, 14) are moved by means of a first to third relative movement device (54, 56, 58) in a first to third relative movement with a first to third axis of movement (64, 66, 68) in order to change the torsion angles (α1, α2) of the first and second legs (12, 14) and a distance (so, s) between the central axes of the legs (12, 14) independently of each other.