Electric Weld Cutting Jaw Drive for High Force With Lower Weight
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Solution Overview
Problem
Existing weld cutting machines are heavy, complex, and environmentally unfriendly due to hydraulic systems, making them difficult for a single person to handle and requiring expensive and complex cutting jaws.
Innovation Solution
A weld cutting machine design utilizing an electric motor with a transmission mechanism comprising a planetary gear and chain/wheel mechanism to provide linear movement of cutting jaw parts, reducing weight and environmental impact, and featuring adjustable guide members for easy handling and operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If hydraulic systems are used to drive the cutting jaws, then adequate cutting forces can be delivered, but the machine becomes heavy and environmentally problematic
Solution Approach 1:
The patent replaces the hydraulic drive system with a direct mechanical drive system using a crank mechanism. The crank converts rotational motion from an electric motor into reciprocating linear motion of the cutting jaw, eliminating the need for hydraulic fluid and pumps. This substitution reduces machine weight while maintaining adequate cutting forces through direct mechanical transmission.
2Force
If hydraulic systems are used to drive the cutting jaws, then adequate cutting forces can be delivered, but the machine becomes environmentally problematic due to hydraulic oil
Solution Approach 1:
The patent eliminates hydraulic oil and associated environmental hazards by replacing the hydraulic system with a mechanical crank drive. The crank mechanism transmits force directly through solid mechanical components, removing liquid hydraulic fluid from the system entirely and thus eliminating environmental contamination risks.
3Productivity
If complex cutting jaws are used to achieve adequate cutting performance, then cutting effectiveness is improved, but the cost and complexity of replacement increases
Solution Approach 1:
The cutting jaw is divided into modular components that can be independently replaced. The jaw is segmented into a body portion and replaceable cutting edges or inserts, allowing only the worn cutting portions to be replaced rather than the entire jaw assembly. This reduces complexity and cost of replacement while maintaining cutting effectiveness.
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 machine is significantly lighter, allowing single-person handling, environmentally friendly due to mechanical drive, and cost-efficient with easily exchangeable cutting jaws, achieving high torque and force for efficient weld cutting.
Implementation Method 1
each rod of said at least two rods being arranged with at least one set of threads arranged to transfer torque applied via said transmission mechanism to said rods to provide linear movement
Data Source
AI summary
A weld cutting machine having a first cutting jaw part (4) and a second cutting jaw part (5), a base frame (500) having fixedly attached thereto the second cutting jaw part (5), a power unit and a transmission mechanism (3). The power unit is connected to the transmission mechanism (3) to arrange for movement of at least one of the first cutting jaw part or the second cutting jaw part (4, 5).