Tube Drawing Tilt Mechanism for Eccentricity Correction
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Solution Overview
Problem
Existing methods for correcting eccentricity in tubes during manufacturing are inefficient and require prior measurement of eccentricity, leading to structural failures or material waste due to non-uniform thickness distribution.
Innovation Solution
A method involving a drawing machine with a tilt and through hole that allows free rotation and tilt of the tube, correcting eccentricity by leveraging the natural tilt of the tube during the drawing process without prior measurement, using a device with a rotating rotor and tilt mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the drawing die is configured to tilt during the drawing operation to reduce eccentricity, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The drawing die is configured to tilt dynamically during the drawing operation rather than being fixed. This dynamic adjustment allows the die to adapt to the tube's eccentricity, correcting it during the drawing process. The tilt mechanism enables the die angle to change, facilitating eccentricity reduction while maintaining a relatively simple overall device structure.
2Manufacturing precision
If the drawing mandrel is configured to tilt during the drawing operation to reduce eccentricity, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The drawing mandrel is configured with tilt capability that allows it to adjust its angle dynamically during the drawing operation. This dynamic tilt adjustment enables the mandrel to compensate for tube eccentricity, improving manufacturing precision. The mechanism maintains simplicity by integrating the tilt function into the existing mandrel structure rather than adding separate complex correction devices.
3Manufacturing precision
If prior measurement of eccentricity is performed to correct it, then manufacturing precision is improved, but loss of time increases
Solution Approach 1:
The invention incorporates preliminary action by integrating the eccentricity correction mechanism into the drawing process itself. The tilt-capable drawing die or mandrel is pre-configured to automatically adjust during drawing, correcting eccentricity as the tube is being formed. This eliminates the need for separate prior measurement and correction steps, thereby reducing time loss while maintaining precision.
Solution Approach 2:
The drawing process itself performs the eccentricity correction function through the tilt mechanism. The system uses the drawing operation to simultaneously shape the tube and correct its eccentricity, making the process self-correcting. This self-service approach eliminates dedicated measurement and correction steps, reducing time consumption while achieving precision correction.
Data Source
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AI summary
The invention relates to a device for correcting eccentricity in a tube, enabled to be installed in a drawing machine and in continuity with a die of the same drawing machine, and comprising a bench, a rotating rotor and a tilt, wherein the bench and the die of the drawing machine have coincident axial axes; the rotor being inserted in the bench with the same axial axis as the bench, and with capacity for free rotation inside the bench; the tilt being inserted and fixed in the rotor wherein the axial axis thereof is coincident with the rotor axis, wherein the tilt also has the same capacity for rotation as the rotor and is concentrical about the axial axis thereof; the tilt having a hole in a direction parallel to the axial axis thereof, said hole being in an off-centre position in relation to the axial axis of the same tilt.