Welding Electrode Coolant Drawback for Spill-Free Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Resistance welding machines experience significant liquid coolant spillage when welding electrodes are removed, leading to safety hazards and equipment damage due to the inability of current systems to effectively manage coolant flow during maintenance or component failure.
Innovation Solution
A liquid cooling system with integrated drawback elements and valves that stop or reduce coolant flow and actively draw back coolant from gaps formed when electrodes detach, utilizing piston and chamber mechanisms to prevent spillage and manage coolant flow efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If welding electrodes are removed from the welding machine, then maintenance or component replacement can be performed, but significant liquid coolant spillage occurs causing safety hazards and equipment damage
Solution Approach 1:
The drawback system is activated before electrode removal to preemptively draw coolant away from potential spillage zones. The piston-driven drawback elements create negative pressure that pulls coolant into sealed chambers before the electrode detachment creates open gaps, preventing spillage from occurring in the first place
Solution Approach 2:
The patent introduces drawback elements with pistons and chambers as intermediary components between the coolant flow path and the electrode cooling channels. These intermediaries actively manage coolant transfer, using the piston mechanism to move coolant from vulnerable areas into sealed chambers, thereby mediating between the need for electrode removal and the need to prevent spillage
2Object-affected harmful factors
If coolant flow is stopped at the source when electrode is lost or removed, then some spillage is reduced, but spillage still occurs from liquid already circulating in the cooling system
Solution Approach 1:
The drawback system extracts coolant from the circulating cooling system and transfers it into sealed drawback chambers before spillage can occur. By pulling coolant out of the vulnerable electrode cooling channels and storing it in closed chambers, the system removes the harmful spillage potential while preserving the coolant for later reuse
Solution Approach 2:
Instead of simply discarding or wasting coolant when spillage occurs, the drawback system recovers the coolant by drawing it into sealed chambers before it can be lost. The recovered coolant remains available for future operations, eliminating both the spillage hazard and the coolant loss that would otherwise occur
3Object-affected harmful factors
If drawback elements are added to actively draw back coolant, then coolant spillage is prevented, but device complexity increases
Solution Approach 1:
The drawback system is designed to be self-activating through pressure differential sensing. When electrode removal creates pressure changes in the coolant system, the pistons automatically respond to these differentials and draw coolant into chambers without requiring external control systems, complex sensors, or manual intervention, thereby reducing overall system complexity while maintaining effective spillage prevention
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system significantly reduces or eliminates coolant spillage, ensuring safety and preventing equipment damage by effectively managing coolant flow during electrode detachment, whether due to maintenance or failure, while maintaining efficient cooling of welding electrodes.
Implementation Method 1
Fluid transfer of suction force between drawback apparatuses
Data Source
AI summary
A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.