Modular Welding Torch Positioner for Fast Motor Replacement
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Solution Overview
Problem
Welding systems used in harsh environments often experience component damage, leading to extensive troubleshooting and downtime due to faulty motors and gearboxes, which complicates the welding process.
Innovation Solution
A two-axis automated welding system with removable and replaceable positioning motors and beams, allowing for quick maintenance without tools, along with a telescoping rail for extended reach, enabling efficient positioning and minimal downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If welding systems use fixed integrated motors and gearboxes, then structural stability is maintained, but component replacement becomes time-consuming and complex in harsh environments
Solution Approach 1:
The welding system is divided into modular components: the carriage can be separated from the beams, and motors can be independently removed from the carriage. This segmentation allows damaged components to be replaced without affecting other parts of the system, directly addressing the need for easy repair in harsh environments while managing complexity through standardized interfaces.
Solution Approach 2:
The system transitions from a fixed integrated structure to a dynamic reconfigurable structure. The carriage can be detached and reattached to different beam configurations, and motors can be quickly swapped. This dynamic capability enables rapid maintenance and adaptation, improving repair ease while the modular design keeps system complexity manageable through consistent connection mechanisms.
2Productivity
If extensive troubleshooting and fault finding are performed on damaged components, then welding accuracy is maintained, but welding time is exceeded and productivity is reduced
Solution Approach 1:
The system enables preliminary replacement of suspected damaged components without extensive troubleshooting. The modular design allows operators to quickly swap out motors or the entire carriage assembly based on symptom patterns, maintaining welding quality by ensuring components are replaced before failures affect weld accuracy, while preserving productivity by avoiding time-consuming diagnostic procedures.
Solution Approach 2:
The standardized modular interfaces enable operators to perform self-service maintenance by replacing components based on simple diagnostic indicators rather than requiring extensive expert troubleshooting. This maintains reliability through consistent component replacement while boosting productivity by eliminating complex fault-finding procedures.
3Loss of time
If positioning motors are permanently fixed to the carriage, then positioning precision is maintained, but maintenance time increases significantly
Solution Approach 1:
The positioning motors are segmented as independent removable components from the carriage assembly. Standardized mounting interfaces allow motors to be quickly detached and replaced without tools or complex procedures, dramatically reducing maintenance downtime while maintaining positioning precision through consistent reattachment to the same carriage reference points.
4Productivity
If extensive deconstruction is required to change damaged motors or gears, then component reliability is improved, but system complexity increases and productivity decreases
Solution Approach 1:
The system is segmented into independently replaceable modules: motors, gearboxes, and the carriage itself. Standardized interfaces eliminate the need for extensive deconstruction, allowing damaged components to be swapped out quickly. This maintains component reliability through proper modular replacement while preserving productivity by avoiding complex disassembly procedures that reduce welding output.
Data Source
AI summary
A welding system can include a carriage having a top surface and a bottom surface. A first set of wheels can be coupled to the top surface of the carriage, and a second set of wheels can be coupled to the top surface of the carriage, spaced apart from the first set of wheels to create a first beam channel. The welding system can further include a first beam that includes a rack extending along a side of the first beam. The first beam can extend through the first beam channel and engage with the first and second sets of wheels. The welding system can further include a first positioning motor that includes a pinion gear. The first positioning motor is removeably coupled to the carriage such that the pinion gear is positioned to engage the rack extending along the first beam.