Forming Device Stroke Adjustment for Cup Hollow Bodies
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Solution Overview
Problem
Existing forming devices for cup-shaped hollow bodies struggle to adapt to varying outer geometries and sizes of hollow bodies, requiring adjustable processing strokes and frequencies to prevent tool acceleration exceeding limits and ensure precise processing.
Innovation Solution
Incorporating a stroke adjustment arrangement connected to a control device for variably adjusting the working stroke of the cyclical linear movement, and a coupling device to synchronize rotary step and cyclical linear movements, allowing for phase shifts and precise phase positioning between drive means, ensuring tools are always moved within safe acceleration limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the working stroke is increased to process different hollow body geometries, then adaptability is improved, but the risk of exceeding tool acceleration limits increases
Solution Approach 1:
The forming device implements dynamic adjustment of the working stroke through a stroke adjustment arrangement that allows the cyclical linear movement range to be varied based on the specific hollow body geometry being processed. This dynamic adaptability ensures the tools remain within safe acceleration limits while accommodating different processing requirements
Solution Approach 2:
The system changes the working stroke parameter continuously or in discrete steps to match different hollow body geometries. The control device receives information about the hollow body type and automatically adjusts the working stroke parameter to optimize processing while maintaining safety limits
2Productivity
If the processing frequency is increased to improve productivity, then output is improved, but the precision of phase synchronization between rotary and linear movements deteriorates
Solution Approach 1:
The control device implements feedback control to monitor and adjust the phase position between the rotary step movement and cyclical linear movement. This feedback mechanism ensures precise phase synchronization is maintained even at higher processing frequencies, preventing timing errors in the forming process
Solution Approach 2:
The system replaces purely mechanical coupling with a control-based synchronization system that uses control signals to coordinate the rotary and linear movements. This allows for precise phase control through electronic means rather than relying solely on mechanical timing
3Adaptability or versatility
If manual adjustment of working stroke is implemented, then adaptability is improved, but device complexity and operation time increase
Solution Approach 1:
The forming device performs self-adjustment of the working stroke through automated control systems. The control device automatically sets the appropriate working stroke based on pre-programmed parameters or input data about the hollow body geometry, eliminating the need for manual intervention and reducing operational complexity
Solution Approach 2:
The control device serves multiple functions: it manages the stroke adjustment arrangement, coordinates the phase position between movements, and oversees the entire forming process. This multi-functionality consolidates what would otherwise require separate manual adjustment mechanisms into a single integrated control system
Data Source
AI summary
A forming device for cup-shaped hollow bodies having a machine frame, a drive device, a workpiece rotary table for accommodating hollow bodies and a tool holder for accommodating processing tools, wherein the workpiece rotary table and the tool holder face one another and can be turned about a rotational axis in relation to one another and can be linearly moved in relation to one another along the rotational axis, and wherein the drive device comprises first drive means for providing a rotary step movement and second drive means for providing a cyclical linear movement between workpiece rotary table and tool holder to enable the hollow bodies to be formed by means of the processing tools in a plurality of consecutive processing steps. The second drive means has a stroke adjustment arrangement which is designed for adjusting a working stroke of the cyclical linear movement as a function of a control signal of a control device and/or for continuously variably adjusting the working stroke.


