Analysis of Automated Welding Technology for Heavy-Duty Structural Components
I. Characteristics of Welding for Construction Machinery Structural Components
- Construction machinery equipment (such as excavators, loaders, cranes, mining machinery, etc.) typically includes:
Thick plate welding (6mm–60mm)
Long weld welds
Multi-angle spatial welds
High-strength steel welding
- Typical welded workpieces include:
Excavator boom
Bucket
Chassis structural components
Support structures
Heavy-duty frames
- Main problems encountered during welding include:
Difficulty in controlling welding deformation
Poor weld consistency
Low efficiency of manual welding
Reliance on experience for welding quality
Therefore, more and more construction machinery companies are deploying robotic welding production lines.
II. Composition of Engineering Machinery Robot Welding Systems
A complete automated welding system typically includes:
1. Industrial Welding Robot:
Common brands: YASKAWA welding robots, FANUC welding robots
Robot features: high-precision trajectory control, multi-axis linkage, and highly stable welding paths.
2. Welding Power Supply System:
Mainstream power supply brands include: Kaierda (Yaskawa) welding machines, Megmeet welding machines, Aotai welding machines, Cloos welding machines, etc.
Advanced power supplies feature: pulsed MIG welding, low-spatter welding, and high-speed welding control.
3. Heavy-duty Welding Positioner
Function: Achieving optimal welding posture, improving weld quality, and reducing robot posture limits.
4. Robot Track
For large workpieces, a 7-axis robot track (10-15 meters travel distance) is typically configured.
Advantages: Expanding the robot's working range; one robot can complete multi-station welding.
III. No-Teach Welding Technology
- Traditional robot welding requires teaching programming, but for large structural parts: programming time is long and debugging is complex. Therefore, more and more projects are adopting no-teach welding technology.
- Its core processes are:
1. Importing the 3D model of the workpiece
2. Automatically identifying weld seams
3. Automatically generating welding trajectories
4. Automatically generating robot programs
- Advantages include:
80% improvement in programming efficiency
Suitable for multi-variety, small-batch production
Reduced reliance on technical personnel
This technology is widely used in the engineering machinery, shipbuilding, and steel structure industries.
IV. Welding Quality Control Technology
To ensure automated welding quality, the following systems are typically used:
1. Laser Weld Seam Tracking System
- Function:
Real-time detection of weld seam position
Automatic adjustment of robot path
- Suitable for:
Structural components with large assembly errors
2. Arc Sensing System
Automatic weld seam correction by detecting:
Current changes
Voltage changes
3. Welding Quality Monitoring System
Real-time monitoring of:
Current
Voltage
Welding speed
Heat input
Achieving weld quality traceability.
V. The layout of the entire automated welding production line can achieve:
Continuous welding
Automatic production
High-efficiency manufacturing
VI. Advantages of Automated Welding
Compared to manual welding, robotic welding has significant advantages:
Comparison Manual Welding Robotic Welding
Efficiency Low 2-3 times higher
Quality Unstable High consistency
Cost High labor costs Long-term cost reduction
Environment High labor intensity Automated production
VII. Application Industries
Robotic welding is widely used in the following industries:
- Construction machinery
- Mining equipment
- Agricultural machinery
- Steel structures
- Heavy equipment manufacturing
VIII. Anchuang Intelligent's Construction Machinery Welding Solutions
Changzhou Anchuang Intelligent Equipment Co., Ltd. specializes in the integration of automated robotic welding systems, providing customers with:
- Robotic welding workstations
- Automated welding production lines
- Welding positioner design
- Robotic mobile rails
- Customized welding fixtures
We can integrate welding systems according to different customer needs, providing one-stop turnkey engineering solutions.
Changzhou Anchuang Intelligent Equipment Co., Ltd. – Provider of Integrated Robotic Welding Automation Solutions
Tel/WhatsApp/WeChat: +86 15151971897
Email: nicole@anchuangwelding.com
Website: www.anchuangwelding.com
