Welding Robot Torch Controls for Direct Operation Arc Sequencing
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Solution Overview
Problem
Existing arc welding processes using direct operation of robots can lead to inefficiencies due to the potential for unnecessary welding when the robot moves, reducing work efficiency.
Innovation Solution
A welding robot system with a switch unit and button unit on the robot arm, allowing differential operation based on which is pressed first, and a welding control unit to manage arc generation and robot movement, enhancing safety and efficiency during direct operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the robot moves during direct operation for arc welding, then the robot can reach different welding positions, but unnecessary welding may occur leading to reduced work efficiency
Solution Approach 1:
The system requires the operator to press the switch unit before the button unit, establishing a preliminary action sequence. This ensures the robot is in movable mode before welding starts, allowing the operator to position the robot at the correct location before arc generation begins, thereby preventing unnecessary welding and improving work efficiency
2Ease of operation
If the switch unit and button unit are provided on the robot arm, then direct operation during welding is enabled, but the complexity of the control system increases
Solution Approach 1:
The switch unit and button unit are integrated into a single control device mounted on the robot arm. This merging of components allows the operator to access both controls in one location, simplifying the overall system architecture while maintaining direct operation capability during welding processes
3Ease of operation
If the robot is made operable in response to external force, then direct teaching and positioning become easier, but safety risks increase during welding operations
Solution Approach 1:
The control system is segmented into two distinct units: the switch unit that enables robot movability in response to external force, and the button unit that generates the welding arc. This segmentation separates the functions of robot positioning and welding execution, allowing direct teaching for positioning while maintaining safety control over arc generation through the required pressing sequence
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
Improves work efficiency by allowing controlled arc generation and robot movement based on operator input, reducing unnecessary welding and enhancing safety through double operation requirements.
Implementation Method 1
a button unit that generates an arc from the welding torch unit while being pressed
Data Source
AI summary
A welding robot system includes a welding torch unit, a switch unit that puts a robot into a state where it can operate in response to an external force, a button unit that generates an arc, an operation mode setting unit that sets an operation mode, and a welding control unit. The switch unit and the button unit are provided on the torch mount. When the operation mode is set to a direct operation mode in which an operator applies an external force directly to the robot with his or her hands and moves and operates the robot in response to the external force and welding is possible, the welding control unit generates an arc when both the switch unit and the button unit are continuously pressed, and causes the robot to operate differently depending on whether the switch unit or the button unit is pressed first.