Vibrating Electrode Holder for Electro-Spark Deposition
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Solution Overview
Problem
Existing welding electrode tools face inefficiencies in coating processes due to intermittent contact and grinding effects during electro-spark deposition, leading to suboptimal coating quality and material consumption.
Innovation Solution
A vibrating hand-held electrode holder with a ventilation system and adjustable vibration source, which includes a power source, shielding gas conduit, and a resilient transmitter to enhance contact stability and coating efficiency by oscillating the electrode in the axial direction, allowing for consistent deposition of material onto the workpiece.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a hand-held electrode holder is used for electro-spark deposition, then portability and ease of operation are improved, but coating consistency deteriorates due to intermittent contact and grinding effects
Solution Approach 1:
The patent introduces a vibration source mounted to the handle that oscillates the electrode in the axial direction. This mechanical vibration prevents intermittent contact and grinding effects between the electrode and workpiece, thereby improving coating consistency while maintaining the portability benefits of a hand-held device.
Solution Approach 2:
The patent employs a resilient transmitter between the vibration source and electrode seat, creating a dynamic system that adapts to varying contact conditions. This dynamic configuration allows the electrode to maintain stable contact with the workpiece surface, improving coating consistency without sacrificing the ease of operation provided by the hand-held design.
2Manufacturing precision
If vibration is added to the electrode holder, then coating consistency is improved, but device complexity increases
Solution Approach 1:
The vibration source and ventilation system are integrated into the existing handle structure, allowing these components to serve multiple functions. The handle既是 the gripping structure than also houses the vibration source and ventilation conduit, reducing overall device complexity while achieving improved coating consistency.
Solution Approach 2:
The vibration source and ventilation conduit are nested within the handle structure. The ventilation conduit passes through the handle, and the vibration source is mounted within the housing that defines the handle, creating a compact integrated design that minimizes structural complexity.
3Temperature
If ventilation is added for active cooling, then temperature control is improved, but device complexity increases
Solution Approach 1:
The patent uses a ventilation conduit to deliver cooling air or gas through the handle to the electrode seat. This pneumatic cooling system provides effective temperature control without requiring complex mechanical cooling mechanisms, thereby limiting the increase in device complexity.
Solution Approach 2:
The ventilation conduit serves dual purposes: it provides active cooling to control temperature and may also facilitate the electro-spark deposition process by managing gas flow around the electrode-workpiece interface. This multi-functionality reduces the need for separate cooling systems, limiting complexity increase.
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 vibrating electrode holder improves coating consistency and reduces material wastage by maintaining stable contact and controlled vibration, facilitating efficient electro-spark deposition and enhancing the yield of the coating process.
Implementation Method 1
A vibration source is mounted to the handle... the vibration source, in operation, oscillates the handle with a component of force in the axial direction
Implementation Method 2
The housing has ventilation porting... the vibration source is actively cooled by a ventilation impeller mounted within the housing
Implementation Method 3
In the electro-spark deposition process, a consumable piece of electrode material is brought into contact with a metallic base surface to be treated
Data Source
AI summary
A welding electrode is mounted in a tool holder that is part of a handle apparatus. The handle apparatus has an electrode power connection. The handle apparatus has a housing defining a haft that can be grasped in the hand of an operator. A vibrator is mounted inside the haft. The vibrator includes a force transmitter in the form of a cantilevered beam. The cantilevered beam is electrically conductive and carries power to the tool holder. The tool holder has a handle that permits the welding rod to be rotated about its axis as it wears during deposition of welding rod material on the object work piece.