3D Workpiece Welding Cell With Multi-Axis Positioning and Robot Coordination
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Solution Overview
Problem
Conventional welding equipment struggles with low efficiency and poor quality when welding special-shaped three-dimensional workpieces, particularly subway grilles, requiring manual repairs and leading to high labor intensity, poor working conditions, and unpredictable construction timelines.
Innovation Solution
A fully automatic welding forming equipment comprising a base station, welding robot, displacement worktable, auxiliary robot, and hopper, with multi-degree of freedom displacement worktable and cooperative robots for flexible positioning and welding, integrating detection, adjustment, and correction to automate the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional welding equipment is used for welding operations, then the equipment structure is simple, but the welding efficiency is extremely low and welding quality is poor
Solution Approach 1:
The patent combines multiple welding robots (first welding robot, second welding robot, third welding robot) with a multi-degree-of-freedom displacement worktable into an integrated welding system. This merging of multiple functional components enables the system to handle complex three-dimensional workpieces efficiently while maintaining coordinated control, directly resolving the contradiction between improving welding efficiency and managing equipment complexity.
Solution Approach 2:
The displacement worktable is designed with multiple degrees of freedom, allowing dynamic adjustment of the workpiece position and orientation during welding operations. This dynamic capability enables the welding robots to access various welding positions on special-shaped three-dimensional workpieces, significantly improving welding efficiency and quality without requiring overly complex fixed-position equipment configurations.
2Extent of automation
If conventional welding equipment is used, then the equipment is simple to operate, but manual repair welding is required leading to high labor intensity and poor working environment
Solution Approach 1:
The welding system incorporates seam-finding structures that enable the robots to automatically locate and track weld seams on complex three-dimensional workpieces without human intervention. The system performs self-positioning and self-adjustment through the multi-degree-of-freedom displacement worktable, achieving high-level automation while the centralized control system manages operational complexity, allowing operators to simply monitor and initiate processes.
3Loss of time
If conventional welding equipment is used, then the equipment cost is low, but construction period is unpredictable and construction costs increase
Solution Approach 1:
The patent employs multiple welding robots working simultaneously on different sections of the workpiece, with the displacement worktable continuously adjusting positions to maintain optimal welding conditions. This continuous, parallel welding operation eliminates idle time and manual repair interruptions, ensuring predictable construction periods and reducing overall project time despite the complex equipment configuration.
Data Source
AI summary
Fully automatic welding forming equipment for a special-shaped three-dimensional workpiece and a welding method is provided. The welding forming equipment includes a base station, a welding robot, a displacement worktable, an auxiliary robot, and a hopper. The welding robot, the auxiliary robot and the hopper are arranged on the base station, and the displacement worktable is arranged between the base stations. The displacement worktable adopts the structure of main and sub double frames and main and sub double rotary power, which has multiple degrees of freedom, and can flexibly adjust the position and angle of the welded parts, realize the welding requirements of any position and angle, and meet the welding operation requirements of complex special-shaped three-dimensional components without manual repair welding operation, and the multi-point welding can be realized through the cooperation of welding robot and auxiliary robot to improve the welding efficiency and quality.