Wheel Rim Forming Tool With Transverse Surface Extension
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for shaping steel components, particularly wheel rims, are limited in forming surfaces parallel to the punch movement direction, resulting in imprecise shaping and fluctuations in component thickness.
Innovation Solution
A device comprising a first and second tool that can move relative to each other along a movement axis, with the first tool's surface extendable transverse to the axis, allowing for precise shaping of components by exerting additional force components perpendicular to the axis, enabling the formation of surfaces parallel to the movement axis through local cooling and hydraulic pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional pressing tools with fixed surfaces are used, then the device structure is simple, but the manufacturing precision of surfaces parallel to the movement axis deteriorates
Solution Approach 1:
The tool surface is made dynamically extendable in the extension region through a hydraulic system. The hydraulic cylinder can extend or retract the tool surface transverse to the movement axis during the pressing operation, allowing adaptation to different shaping requirements without changing the basic tool structure.
Solution Approach 2:
The invention adds a new degree of freedom by enabling extension of the tool surface in the transverse direction (perpendicular to the movement axis). This dimensional extension allows the tool to exert additional force components and achieve precise shaping of surfaces parallel to the movement axis, which was impossible with conventional fixed-surface tools.
2Manufacturing precision
If conventional pressing methods are used, then the device complexity is low, but the manufacturing precision of component thickness deteriorates due to fluctuations
Solution Approach 1:
The extendable tool surface acts as a feedback mechanism that can dynamically adjust during pressing. By extending or retracting the tool surface in the extension region, the system compensates for thickness variations and maintains uniform component thickness, providing real-time correction during the forming process.
Solution Approach 2:
The invention changes the pressing parameters by introducing variable extension of the tool surface. The extension region can be adjusted during pressing to modify the force distribution and contact area, enabling precise control over component thickness and compensating for material variations.
3Manufacturing precision
If the tool surface is extended transverse to the movement axis, then the shaping precision improves, but the device complexity increases
Solution Approach 1:
The extension mechanism is implemented using a hydraulic cylinder and hydraulic medium. The hydraulic system provides controlled extension and retraction of the tool surface in the extension region, enabling precise adjustment of the tool geometry during pressing operations through fluid pressure control.
Solution Approach 2:
The tool surface transitions from a static configuration to a dynamic one, where the extension region can be extended or retracted during the pressing cycle. This dynamic capability allows the tool to adapt its shape and force application points to achieve precise surface orientation and component geometry.
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
Enables precise shaping of sheet steel components, including wheel rims, with improved accuracy and control over surface orientation, overcoming limitations of prior art by allowing for the formation of surfaces parallel to the punch movement direction and achieving local hardening.
Implementation Method 1
at least part of the first tool and/or at least part of the second tool is preferably designed to be cooled. As a result of the cooling, a structural transformation can be generated in the component during the pressing. This allows the component to be hardened.
Implementation Method 2
A device comprising a first and second tool that can move relative to each other along a movement axis, with the first tool's surface extendable transverse to the axis, allowing for precise shaping of components by exerting additional force components perpendicular to the axis, enabling the formation of surfaces parallel to the movement axis through local cooling and hydraulic pressure.
Data Source
AI summary
Device for shaping a component, comprising a first tool and a second tool, which can be moved relative to one another along a movement axis to shape a component to be placed between the tools, wherein a surface of the first tool can be extended transverse to the movement axis in an extension region. With the described device and with the described method, components, in particular sheet steel components, can be shaped in such a way that contours that are oriented in parallel to a movement axis of the tools are particularly well formed. In particular circular shapes can thus be formed with particularly good accuracy. Negative influences of fluctuations of the thickness of the component can be offset. The device and the method are particularly suitable for the production of wheel rims for motor vehicles.