The Chuanglida Intelligent Equipment BRT-LA series integrates a 6-axis industrial welding robot with a precision-ground, floor-mounted linear slide rail. This 7-axis or 8-axis synchronized system enables continuous seam welding of long or oversized workpieces without manual repositioning. The structural steel track base prevents positional drift during traverse, maintaining tolerances for heavy machinery, structural steel, and automotive frame fabrication.
Key Features
Rigid Track Structure: Heavy-walled structural steel tubing milled on a 12-meter CNC gantry, surface induction-hardened to HRC 55-60.
Synchronized Control: Real-time multi-axis interpolation between the robot arm and linear slide maintains constant welding speed and torch angle over the full stroke.
Integrated Energy Chain: Enclosed heavy-duty cable carrier routes welding cables, gas lines, and hoses alongside the track to prevent torsion and wear.
Backlash-Free Drive: Zero-backlash planetary gearbox coupled directly to an AC servo motor, delivering linear positioning repeatability within plus or minus 0.05 mm.
Technical Specifications
|
Parameter |
Specification |
|
Model Designation |
BRT-LA-WR800 |
|
Linear Axis Stroke Length |
3,000 mm to 18,000 mm (Scalable in 1,500 mm increments) |
|
Linear Axis Max Speed |
1.5 m/s |
|
Linear Positioning Repeatability |
plus or minus 0.05 mm |
|
Robot Payload Capacity |
6 kg to 20 kg |
|
Robot Reach Options |
1,400 mm to 2,010 mm |
|
Welding Power Interfaces |
MIG / MAG / TIG (Compatible with major industrial power sources) |
|
Drive Mechanism |
Precision Helical Rack and Pinion |
|
Control System |
Dedicated 8-Axis PLC and Motion Controller (EtherCAT / Profinet) |
|
Ambient Operating Temperature |
0°C to 45°C |
Applications
Structural Steel
H-beams, box columns, and crane girders up to 12 meters in length.
Commercial Vehicle Chassis
Continuous fillet and butt welding on truck side rails and trailer frames.
Heavy Machinery
Excavator booms, loader arms, and harvester frames requiring deep-penetration GMAW passes.
Pressure Vessels
Longitudinal and circumferential seam welding on large cylindrical shells and storage containers.
System Integration
Power Source Communication: DeviceNet, EtherCAT, or analog 0-10V protocols modulate wire feed speed, voltage, and current dynamically based on axis position.
Torch Maintenance Station: Pneumatic reamer with anti-spatter fluid injection positioned at the track home location, triggered by preset arc-time intervals.
Seam Tracking: Optional laser vision sensor mounted adjacent to the torch to compensate for thermal distortion and joint variations in real-time.
Wire Feed Management: Auxiliary bulk wire dispenser mounted directly on the carriage gantry to minimize feed resistance over extended travel.
Customization Options
Track Layout: Custom stroke lengths, dual-robot setups on a single rail, or inverted/wall-mounted axes.
Collision Protection: 360-degree magnetic crash unit with automatic emergency stop integration.
Positioner Interfacing: Synchronization with external pneumatic or servo-driven headstock-tailstock positioners.
Safety Enclosures: Modular light curtains, interlocked sliding access doors, and automated fume extraction built to ISO 10218 standards.
Manufacturing and Quality Control
Bed Machining: Track mounting surfaces finish-machined on a floor-type boring mill; parallelism maintained within 0.03 mm over a 6-meter span.
Thermal Stress Relieving: Welded structural bases undergo furnace thermal aging at 600°C prior to machining to prevent geometric warping.
Laser Calibration: Every linear axis undergoes laser interferometer verification before dispatch to measure and compensate for pitch, yaw, and linear displacement errors.
Burn-In Testing: Fully assembled systems undergo a 72-hour continuous dry-run and simulated arc test under rated payload.
Maintenance and Lifecycle Support
Centralized Lubrication: Automated progressive grease systems deliver metered lubricant to rack-and-pinion interfaces and linear guide blocks.
Remote Diagnostic Gateway: Built-in VPN router enables secure remote connection for PLC backup, error log extraction, and axis tuning.
Consumable Stocking: Standardized contact tips, nozzles, torch liners, and drive rolls cataloged for rapid dispatch.
Field Service: On-site mechanical leveling, laser alignment, and operator training by certified robotics technicians.
FAQ
Q: How is alignment maintained over long travel distances?
A: The track uses precision-ground helical racks paired with preloaded planetary gearboxes. Dual guide rails absorb side-load moments to prevent angular deflection, while calibration routines map pitch and straightness errors into the controller firmware.
Q: Can two robots operate on the same floor-mounted linear axis?
A: Yes. The architecture supports dual-carriage configurations on a single rail using hardware-based collision avoidance zoning and independent servo drive loops.
Q: What civil foundation requirements are needed?
A: Tracks up to 6 meters require a standard industrial concrete floor (minimum 200 mm thickness, C25/30 grade) secured with chemical anchors. Tracks exceeding 6 meters require a reinforced concrete foundation trench with precision-leveled base plates.
Q: How are cables protected during continuous linear travel?
A: Power, signal, and pneumatic lines are enclosed in high-flex nylon cable drag chains rated for a minimum bending radius of 10 times the cable diameter over millions of reciprocating flex cycles.
Hot Tags: welding robot with floor-mounted linear axis, China welding robot with floor-mounted linear axis manufacturers, suppliers, factory, automated welding cell robotic system, automated welding fabrication cell, Collaborative Welding Robot, Heavy Duty MIG Welding Workstation, robotic tig welding cell, robotic welding structural steel system
