Tube Bending Machine Automatic Loading Non-Circular Cross-Sections
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Solution Overview
Problem
Current automatic loading systems for tube bending machines are ineffective for tubes with non-circular cross-sections, often causing damage due to improper orientation, and require manual or custom loading tools, increasing time and costs.
Innovation Solution
A tube bending machine with a bending head movable in two degrees of freedom and a rotatable tube-carrying structure, controlled by an electronic unit to calculate and execute precise movements, ensuring the tube is oriented correctly for clamping without additional tools, allowing for automatic loading of tubes with non-circular cross-sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple inclined plane loading system is used, then the device complexity is reduced and cost is lowered, but the system cannot properly handle tubes with non-circular cross-sections, leading to improper orientation and potential damage
Solution Approach 1:
The bending head is designed to perform multiple functions: it serves as both the bending tool and the loading tool. By integrating the loading capability into the bending head itself, the system achieves universality without requiring separate specialized loading fixtures for different tube types, thereby handling both circular and non-circular cross-sections effectively
Solution Approach 2:
The bending head is made movable with at least two degrees of freedom in the transverse vertical plane, allowing dynamic positioning and orientation adjustment. This dynamic capability enables the bending head to adapt to various tube orientations and positions, solving the limitation of fixed-position loading systems when handling non-circular tubes
2Manufacturing precision
If manual or custom loading tools are used to ensure correct orientation of non-circular tubes, then the manufacturing precision of tube orientation is improved, but the device complexity and setup time increase
Solution Approach 1:
The system uses the bending head's own movement capabilities and positioning system to automatically orient and position the tube correctly during the loading process. The electronic control unit calculates the precise positioning based on tube geometry parameters, eliminating the need for external manual alignment tools or custom fixtures while maintaining high orientation precision
3Ease of operation
If custom loading fixtures with specific angles are designed for non-circular tubes, then the ease of operation is improved by ensuring correct tube orientation, but the device complexity and setup time increase
Solution Approach 1:
Rather than using fixed-angle loading fixtures that require time-consuming setup, the bending head is equipped with dynamic positioning capabilities controlled by an electronic control unit. The control unit calculates real-time positioning parameters based on tube geometry, allowing rapid adaptation to different tube types without physical reconfiguration or setup time
Solution Approach 2:
The system changes operational parameters (positioning coordinates, orientation angles) through electronic control rather than physical fixture changes. The electronic control unit adjusts the bending head's position and orientation parameters dynamically based on input tube geometry data, eliminating the need for custom fixtures with specific angles and reducing setup time to minimal programming or parameter entry
Data Source
AI summary
The machine includes: a bending head movable with at least two degrees of freedom in a transverse vertical plane; a first drive is arranged to move the bending head in the plane and to move a tool of the bending head between an open position, in which it defines with a die of the bending head a free space adapted to receive a tube to be bent, and a closed position, in which it clamps the tube against the die. A tube-carrying structure is rotatable about an axis of rotation perpendicular to the plane; a second drive is arranged to cause the tube-carrying structure to rotate about its own axis of rotation; and an electronic control unit is arranged to control the first and second drives so as to move the bending head and the tube-carrying structure in a position such that the tube is received with a desired orientation in the free space between the die and the tool.