Corner Crimping Machine Independent Force Control
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Solution Overview
Problem
Conventional corner crimping machines face issues with stiffness and force control, leading to non-uniform crimping and potential damage due to uneven force distribution when profiles are not precisely positioned, resulting in high mass and insufficient stiffness.
Innovation Solution
A crimping machine with independent crimping tool control, featuring a top stiffening structure and motor-driven trolleys with three degrees of freedom, allowing precise positioning and force control for each tool, preventing force concentration and enabling uniform crimping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a single pneumatic or hydraulic cylinder drives both crimping heads mechanically coupled together, then the structure achieves adequate stiffness through massive elements, but the mass becomes high and the stiffness is insufficient for repeatable crimping geometry setting
Solution Approach 1:
The single cylinder mechanism is divided into two independent cylinders, each driving one crimping head separately. This segmentation allows each head to be independently controlled and positioned, eliminating the need for massive coupling structures while maintaining operational stability and precision.
2Productivity
If crimping tools are simultaneously pressed to profiles at both sides with equal force, then the crimping process is efficient, but non-uniform positioning of profiles results in non-uniform crimping and potential damage
Solution Approach 1:
Force sensors are integrated into each crimping tool to provide real-time feedback on the applied force. This feedback mechanism enables the control system to detect and correct force imbalances, ensuring uniform crimping even when profiles are not perfectly positioned, while maintaining high crimping efficiency.
Data Source
Figure 1~2
Figure 3
Figure 4A~4B
AI summary
A method for crimping corners, in particular for crimping corners of window frames made of aluminum profiles, comprising the steps of: arranging two profiles on a worktop of a crimping machine and next performing the crimp by means of crimping tools of the crimping machine, characterized by using at least two crimping tools (515A-515B, 515C-515D), wherein the first crimping tool is located at a side of the first profile, and the second crimping tool is located at a side of the second profile, and performing the crimp in at least two stages, such that in each subsequent crimping stage the crimp is performed at a different position of a single profile or the crimp is performed simultaneously in two profiles.