Moving Shell Alignment Assembly for Press Forming Accuracy
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Solution Overview
Problem
Existing press assemblies face challenges in aligning shells from an initial misaligned position to a final alignment position due to shape changes during forming operations, leading to displacement issues within the transfer belt apertures.
Innovation Solution
An alignment assembly with moving alignment elements coupled to the upper tooling assembly, which repositions the shell from an initial alignment position to an intermediate alignment position, allowing for precise engagement with the forming constructs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the shell is conveyed through the tooling assembly without intermediate alignment, then the forming operations can proceed, but the shell becomes misaligned due to shape changes during forming, leading to displacement issues within the transfer belt apertures
Solution Approach 1:
The alignment assembly performs preliminary alignment action on the shell before the forming operations begin. The alignment elements engage the shell in its initial position and pre-position it correctly, preventing misalignment from occurring during the subsequent forming process. This preliminary action ensures the shell remains properly aligned throughout the forming operations.
Solution Approach 2:
The alignment assembly acts as an intermediary element between the transfer belt and the forming constructs. It provides a mechanism that mediates the position of the shell, ensuring proper alignment is maintained even as the shell undergoes shape changes during forming. The alignment elements serve as the intermediary that compensates for positional displacement.
2Manufacturing precision
If alignment elements are added to reposition the shell, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The alignment assembly is designed to perform multiple functions within a single integrated structure. It not only aligns the shell horizontally but also maintains vertical positioning and prevents rotational misalignment. This multi-functionality reduces the need for separate alignment mechanisms for each degree of freedom, thereby limiting the increase in device complexity.
Solution Approach 2:
The alignment elements are designed to automatically engage and disengage based on the position of the shell and the forming constructs. The alignment mechanism is self-actuating, using the motion of the forming constructs themselves to drive the alignment action, rather than requiring separate actuators or complex control systems. This self-service characteristic minimizes the added complexity.
Data Source
AI summary
An alignment assembly for a press assembly is provided. The alignment assembly includes a number of alignment elements. The alignment elements include a number of moving alignment elements. The moving alignment elements are coupled to an upper tooling assembly that moves between a first and second position. As the upper tooling assembly moves, the moving alignment elements move between a first position and a second position corresponding to the upper tooling assembly first position and a second position. The moving alignment elements are structured to move the shell from the initial alignment position to an intermediate alignment position. Thus, as the upper tooling assembly moves from the first position to the second position, the moving alignment elements contact a shell and move the shell from an initial alignment position to an intermediate alignment position.