Wire Bending Ram Mounting for Flexible Angles and Lower Stress
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Solution Overview
Problem
Existing bending machines for steel wire require large, costly designs due to high bending loads and limited flexibility in achieving various bending angles, making them inefficient for producing lattice girders with different geometries and requiring extensive conversions.
Innovation Solution
A bending machine with a translational and rotational bearing system for the bending ram, allowing it to align with the force direction and reduce stress, enabling smaller design and greater flexibility in bending angles without the need for machine conversion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two linear drives are used to move the bending ram, then the bending machine can achieve basic bending functionality, but the ram is subjected to high bending loads requiring larger dimensions and the machine lacks flexibility for different bending angles
Solution Approach 1:
The patent applies the dynamics principle by replacing the static two-linear-drive system with a dynamic mechanism that combines translational and rotational movement. The bending ram is now mounted on a first bearing device for translational movement and a second bearing device for rotational movement, allowing the ram to dynamically align with the force direction during bending. This dynamic adaptation enables the same ram structure to handle various bending angles while maintaining optimal force alignment and reducing bending loads.
2Adaptability or versatility
If the bending machine structure is converted to achieve different bending angles, then versatility is improved, but conversion costs and time increase significantly
Solution Approach 1:
The patent implements universality by designing a bending machine with a multi-functional mounting system for the bending ram. The combination of translational bearing devices and rotational bearing devices creates a universal mechanism that can accommodate any bending angle requirement. This single universal structure replaces the need for multiple specialized configurations or conversion work, allowing the machine to produce lattice girders of any geometry without structural modifications.
3Ease of manufacture
If traditional bending machine design is used, then basic bending function is achieved, but material usage increases due to oversized ram design
Solution Approach 1:
The patent applies mechanics substitution by replacing the traditional direct linear drive system with a mechanism that incorporates bearing devices. The first bearing device provides translational support while the second bearing device provides rotational support, fundamentally changing the mechanical system from which the ram experiences loads. This substitution transforms the load path so that the ram experiences primarily axial forces aligned with its length rather than bending moments, enabling a smaller, more material-efficient design.
Data Source
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AI summary
Bending machine with a preferably rod-shaped plunger (2) which has at least one bending surface (6) for bending at least one wire (1) and which is mounted on a machine frame (10) by means of a first bearing device (11) and a second bearing device (12), wherein the plunger (2) is mounted so as to be movable translationally and rotationally by the first bearing device (11) and the second bearing device (12).