Adaptive Press Machine Control for Material-Specific Fittings
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Solution Overview
Problem
Conventional pressing machines apply maximum force regardless of the material or fitting type, leading to energy wastage and potential damage, as they lack the ability to adapt pressing characteristics to specific workpieces, especially between metal and plastic fittings.
Innovation Solution
A pressing machine equipped with a sensor system to record and analyze pressing data, allowing for variable force adjustment and automatic control based on the type of fitting and pressing jaws, ensuring optimal and material-friendly deformation by matching recorded data with stored parameters for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If maximum pressing force is applied regardless of fitting type, then metal fittings can be pressed adequately, but energy is wasted and plastic fittings may be damaged
Solution Approach 1:
The pressing machine dynamically adjusts the pressing force based on the detected fitting type. The control unit modifies pressing parameters in real-time according to feedback from sensors, transitioning from static maximum force application to dynamic adaptive force control. This resolves the contradiction by applying only the necessary force for each fitting type.
Solution Approach 2:
The system changes pressing parameters (force magnitude, pressing speed, duration) based on the identified fitting type and material properties. By storing multiple pressing parameter sets in memory and selecting the appropriate ones based on sensor input, the machine optimizes energy consumption while ensuring reliable pressing for each specific workpiece.
2Reliability
If maximum pressing force is applied regardless of fitting type, then pressing can be completed, but damage may occur to plastic fittings and pipes
Solution Approach 1:
The control unit selects different pressing parameters based on the detected fitting type. For plastic fittings, lower force and adjusted pressing speed parameters are applied compared to metal fittings. This prevents damage while ensuring complete pressing, resolving the contradiction between reliable pressing completion and avoidance of harmful effects.
Solution Approach 2:
Sensors detect fitting type and material properties, providing feedback to the control unit which then adjusts pressing parameters accordingly. This closed-loop control prevents damage by continuously monitoring and adapting the pressing process to the specific workpiece characteristics.
3Reliability
If different pressing jaws are used for different fitting types, then optimal pressing can be achieved, but device complexity increases
Solution Approach 1:
The pressing machine performs automatic identification of fitting type and material using sensors, eliminating the need for manual selection or switching of pressing jaws. The system serves itself by detecting workpiece properties and automatically selecting appropriate pressing parameters, reducing device complexity while maintaining optimization.
Solution Approach 2:
A single pressing machine design handles multiple fitting types and materials through software-based parameter selection rather than requiring multiple specialized jaw sets. The control unit stores multiple pressing parameter profiles and selects the appropriate one based on sensor input, making the machine universal without increasing mechanical complexity.
4Reliability
If pressing parameters are manually adjusted for different fitting types, then pressing quality can be optimized, but time is lost during parameter changes
Solution Approach 1:
The system automatically detects fitting type and material properties using integrated sensors and autonomously selects the appropriate pressing parameters from stored profiles. This eliminates manual parameter adjustment entirely, resolving the contradiction by achieving both optimal pressing quality and zero parameter change time through automation.
Solution Approach 2:
Sensors provide real-time feedback about the workpiece being pressed, enabling the control unit to automatically select and apply the correct pressing parameters without manual intervention. This closed-loop system eliminates time loss while maintaining optimized pressing quality for each fitting type.
Data Source
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AI summary
The present invention relates to a press machine (10) for the plastic deformation of a tubular workpiece, in particular a fitting. The press machine comprises press jaws, a drive configured to drive the press jaws to apply a force to the workpiece, a sensor system configured to record a press data set during a press operation, and a control unit (40) configured to control the drive on the basis of the recorded press data set.