Sensor-Controlled Pressing Tool for Material-Specific Force
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Solution Overview
Problem
Conventional pressing tools apply maximum force regardless of the material or dimensions of the fitting, leading to energy wastage and potential damage, as they lack the ability to adapt the pressing force based on the specific characteristics of different materials and dimensions.
Innovation Solution
A pressing tool equipped with interchangeable jaws, a sensor system to record pressing data, and a control system to adjust the drive based on the recorded data, allowing for variable force application tailored to the specific material and dimensions of the fitting, ensuring optimal and material-friendly deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If maximum pressing force is always applied during pressing, then the pressing process is simple and fast, but energy is wasted and damage may occur to the fitting and pipes
Solution Approach 1:
The pressing force is made dynamic rather than static. The control system adjusts the pressing force in real-time based on feedback from sensors that monitor the actual pressing process. This allows the system to apply only the necessary force for each specific fitting material and dimension, avoiding both energy waste and potential damage while maintaining efficient pressing speeds.
Solution Approach 2:
A feedback control mechanism is implemented where sensors monitor parameters such as pressing force, displacement, and material response during the pressing process. This feedback information is processed by the control system to dynamically adjust the pressing force, ensuring optimal energy efficiency and preventing damage to the fitting and pipes while maintaining productivity.
2Device complexity
If maximum pressing force is always applied, then no additional equipment is needed, but the fitting and pipes may be damaged
Solution Approach 1:
The feedback control system monitors the actual pressing process and material response in real-time. When the fitting reaches the appropriate deformation state, the system automatically reduces or stops the pressing force, preventing over-pressing and damage. This feedback mechanism adds minimal complexity while significantly reducing harmful effects.
Solution Approach 2:
The pressing force parameter is dynamically changed based on the specific material properties and dimensional characteristics of the fitting being pressed. The control system adjusts force magnitude, application rate, and duration according to pre-programmed parameters or real-time sensor data, ensuring optimal pressing without damage.
3Reliability
If different pressing characteristics are used for different materials and dimensions, then optimal pressing is achieved, but the control system becomes more complex
Solution Approach 1:
A universal control system is implemented that can handle multiple fitting types, materials, and dimensions through programmable parameters and sensor-based adaptation. Rather than requiring separate control systems for each fitting type, the single control system adjusts its parameters dynamically based on the specific workpiece being pressed, achieving optimal results across diverse applications without proportionally increasing complexity.
Solution Approach 2:
The pressing system performs self-adjustment based on sensor feedback from the actual pressing process. The control system automatically determines the appropriate pressing characteristics by monitoring material response, engagement timing, and force requirements, eliminating the need for manual reconfiguration and reducing operational complexity while maintaining high pressing quality.
4Loss of energy
If the pressing force is adapted to the specific fitting characteristics, then energy efficiency is improved, but the system requires sensors and control mechanisms
Solution Approach 1:
The feedback control system uses sensors to monitor pressing force, displacement, and material response in real-time. This feedback enables dynamic adjustment of the pressing force to match the actual needs of each fitting, significantly improving energy efficiency. The added complexity of sensors and control is offset by the substantial energy savings and prevention of damage.
Solution Approach 2:
The system replaces purely mechanical force application with a controlled system that uses sensors and electronic control to regulate the pressing force. This substitution allows for precise energy optimization by applying only the necessary force, with the control system complexity being justified by the significant improvements in energy efficiency and pressing quality.
Data Source
AI summary
A pressing tool for plastically deforming a tubular workpiece, and particularly a fitting is described. The pressing tool comprises pressing jaws, a drive adapted to drive the pressing jaws in order to apply a force to the workpiece, a sensor system which is adapted to record a set of pressing data during a pressing process and a control which is adapted to control the drive based on the recorded set of pressing data. Also described are related methods, pressing jaws and workpieces.