Seam Welding Electrode Layout for Complex Workpiece Shapes
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Solution Overview
Problem
Existing seam welding apparatuses are limited in shape flexibility due to the presence of servomotors, restricting the types of objects that can be welded.
Innovation Solution
A seam welding apparatus with a configuration where the first and second electrode wheels are driven by separate motors, with transfer members and actuators positioned to minimize space occupation, allowing for upward and downward movement and power supply routing through transfer members, enabling welding of variously shaped objects without interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a servomotor is provided coaxially with the electrode wheel to drive it, then the electrode wheel can be driven effectively, but the shape of objects to be welded is limited due to interference with the servomotor
Solution Approach 1:
The motor is extracted from the coaxial position with the electrode wheel and relocated to the upper side. This removes the interfering component from the welding area, allowing objects of various shapes to be welded without obstruction while the motor continues to drive the electrode wheel through the transfer member.
Solution Approach 2:
The motor positioning changes from a coaxial arrangement (one-dimensional alignment with the electrode wheel axis) to a three-dimensional arrangement where the motor is positioned above the electrode wheel axis. This spatial reconfiguration eliminates interference while maintaining the driving function through the transfer member.
2Area of stationary object
If motors and transfer members are positioned close to electrode wheels to minimize space, then compactness is achieved, but space for power supply routing and other components is reduced
Solution Approach 1:
The transfer member serves as an intermediary that not only transmits mechanical driving force from the motor to the electrode wheel but also provides a pathway for power supply lines. This dual function allows compact positioning while maintaining routing capability.
Solution Approach 2:
The transfer member is designed to perform multiple functions: mechanical power transmission and power supply routing. This multi-functionality reduces the need for separate components and simplifies the overall device structure while maintaining compact dimensions.
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
Enables seamless welding on diverse shapes by reducing occupied space around the electrode wheels, preventing interference and allowing for flexible positioning relative to the object being welded.
Implementation Method 1
a first endless transfer member that is provided between the first electrode wheel and the first motor to transfer the driving force of the first motor to the first electrode wheel
Implementation Method 2
a second endless transfer member that transfers the driving force of the second motor to the second electrode wheel
Implementation Method 3
an actuator that moves the second electrode wheel in a direction in which the second electrode wheel moves closer to the first electrode wheel and a direction in which the second electrode wheel moves away from the first electrode wheel
Implementation Method 4
the driving force of the first motor may be transferred to the first transfer member via a speed reducer
Data Source
AI summary
Provided is a seam welding device capable of seam welding various shapes of objects to be welded. A seam welding device which performs seam welding by causing electricity to be conducted between a first electrode wheel and a second electrode wheel comprises a first motor which drives the first electrode wheel, a second motor which drives the second electrode wheel, and a first belt provided between the first electrode wheel and the first motor. If a direction joining the axes of the first electrode wheel and the second electrode wheel is defined as a vertical direction, the direction from the first electrode wheel toward the second electrode wheel is upward, and the direction from the second electrode wheel toward the first electrode wheel is downward, then the first motor is disposed further upward than a point of contact of the first electrode wheel and the second electrode wheel.