Rod Shearing with Position-Controlled Stop for Clean Cut Ends
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing shearing methods for rod materials require high pressure forces, leading to increased mechanical stress and wear on the shearing device, and a risk of compressing the end section, while compromising shearing quality.
Innovation Solution
A method and device where the end section is sheared using a position-controlled longitudinal stop, applying pressure force in the longitudinal direction with a constant position-controlled action, allowing for lower pressure forces without compromising shearing quality, and including a system to assess the shear surface quality by measuring the pressure force course.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high pressure forces are applied during shearing to ensure quality shear surfaces, then shearing quality is improved, but mechanical stress and wear on the shearing device increases
Solution Approach 1:
The patent changes the control parameter from force-controlled to position-controlled longitudinal stop. By precisely controlling the position of the longitudinal stop during shearing, the system achieves high shear surface quality while maintaining lower pressure forces, thereby reducing mechanical stress and wear on the device.
Solution Approach 2:
The patent implements a feedback mechanism where the course of the pressure force is measured and used to assess shear surface quality. This allows the system to maintain optimal shearing conditions while avoiding excessive forces, as the measurement feedback enables real-time adjustment to achieve quality surfaces with minimal required force.
2Manufacturing precision
If high pressure forces are applied during shearing to ensure quality shear surfaces, then shearing quality is improved, but the risk of compressing the end section increases
Solution Approach 1:
The patent transitions from force-controlled to position-controlled longitudinal stop, which enables precise control of the stopping point without applying excessive compressive forces. This position control ensures the end section maintains its shape while still achieving high-quality shear surfaces through optimized blade positioning.
3Manufacturing precision
If force-controlled action is used during shearing, then shearing quality can be maintained, but mechanical wear and stress on the device increases
Solution Approach 1:
The patent changes the control mode from force-controlled to position-controlled longitudinal stop. This parameter change reduces the mechanical stress and wear on the device while maintaining shear surface quality, thereby extending the service life of the stationary components such as the longitudinal stop and blade assembly.
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
This approach reduces mechanical stress and wear on the device, maintains high shearing quality, and prevents undesirable compression, with the option to switch to force-controlled action if position-controlled pressure does not achieve desired results.
Implementation Method 1
during the shearing operation is acted on, via the longitudinal stop, with a pressure force in the longitudinal direction of the rod material
Implementation Method 2
As a result of the shearing, deformation (so-called 'retraction') occurs at the sheared section or at the remaining part of the rod
Implementation Method 3
The cutting blade is then guided against the stationary blade, transversely with respect to the rod material, thus shearing off the end section from the rod material
Data Source
AI summary
A method is disclosed for shearing an end section from a rod material by means of a cutting blade that is movable against a stationary blade, transversely with respect to the longitudinal direction of the rod material, during the shearing operation. The end section to be sheared is brought into contact on its end-face side with a longitudinal stop and is acted on, via the longitudinal stop, with a pressure force in the longitudinal direction of the rod material. The action of pressure force on the end section takes place during the shearing operation with a position-controlled longitudinal position of the longitudinal stop. It is thus possible to manage with a lower pressure force than with conventional force-controlled pressure force action, without the shearing quality of the separation faces at the end section being impaired.