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Automotive Welding Robot Foot Mounting Plate Machining Case Precision Milling Drilling
2025-09-03
Product Description
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This case details the machining process of a foot mounting plate for an automotive welding robot. Made from Q235 steel, the plate undergoes precision milling, drilling, and surface treatment to ensure stable support during high-speed welding operations. The focus is on achieving high flatness and hole accuracy to match robot base installation requirements.
Processing Steps
- Material Preparation: Q235 steel plate (500mm * 500mm * 30mm) is cut and leveled to eliminate deformations.
- Rough Machining: Initial CNC milling on both sides removes surface oxides and achieves preliminary flatness.
- Precision Milling: Fine milling ensures top surface flatness within 0.1mm/m², providing a reference for installation.
- Drilling and Tapping:
- Based on customer bolt hole pattern (M16 threaded holes), CNC drilling produces 4 main holes and 4 auxiliary holes.
- Hole tolerance is controlled within ±0.05mm, followed by tapping for thread accuracy.
- Damping Slot Machining: Milling of slots (5mm depth) on the bottom plate to accommodate standard rubber damping pads.
- Surface Treatment: Zinc plating (zinc layer ≥12μm) enhances rust resistance for humid automotive factory environments.
- Quality Inspection:
- CMM measurement for hole positions and flatness.
- Load testing: Simulated 2-ton dynamic load confirms no deformation or loosening.
- Integration and Delivery: Packaged and delivered with installation guidance for automotive welding production lines.
Results and Advantages
- Improved Accuracy: Hole position errors <0.05mm reduce robot installation adjustment time by 20%.
- Enhanced Stability: Damping design reduces vibrations by 30%, improving welding quality.
- Durability: Zinc plating extends service life for long-term high-intensity operations.
