The Core Process Of Komatsu PC300 Support Wheel Guard Plate

As a key initial process for producing Komatsu PC300 support wheel guard plate, the company employs a new-generation fiber laser cutting machine. Drawing on over 20 years of experience in structural component cutting, it achieves precise cutting of the guard plate's complex contours. Compared with traditional blanking methods, laser blanking offers advantages such as a small heat-affected zone and high cutting accuracy. Especially for the slender structures and dense holes on the guard plate, the "micro-connection" function effectively controls workpiece straightness, avoiding deformation in subsequent processes. The workshop's blanking process features an automated layout, which significantly improves raw material utilization. Meanwhile, dedicated personnel conduct first-piece inspections and batch spot checks on blanked workpieces to ensure each one meets design dimensional accuracy requirements, laying a solid foundation for subsequent processes.

The assembly process adopts modular positioning fixtures, independently optimized and designed by the company based on its 20-plus years of structural component assembly experience. These fixtures enable quick and precise positioning of each component of the Komatsu PC300 support wheel guard plate, increasing assembly efficiency by over 30% compared to traditional methods. After assembly, the welding process commences. The workshop is equipped with intelligent welding robots and a professional manual welding team, which adopt different welding methods for different parts of the guard plate: robot welding is used for key load-bearing parts to ensure uniform and consistent weld seams, while experienced welders manually touch up complex corner areas to ensure welding integrity. The welding process strictly follows construction machinery structural component welding standards, with precise control of welding current and speed to prevent welding deformation.

Inspection is critical to ensuring product quality. The company has established a comprehensive inspection system. Based on its rich experience in structural component inspection, it conducts full-dimensional inspections on each Komatsu PC300 support wheel guard plate: dimensional inspection uses high-precision measuring instruments, covering key indicators such as assembly dimensions and hole diameter tolerances; weld seam inspection combines ultrasonic flaw detection and magnetic particle inspection to fully identify internal and surface defects; appearance inspection employs both manual and machine verification to ensure no surface defects. After passing inspection, workpieces enter the environmentally friendly spray painting workshop, where water-based environmentally friendly paint is used, combined with phosphating treatment to enhance paint film adhesion. The painted guard plates not only meet Komatsu excavator appearance standards but also exhibit excellent rust and corrosion resistance, making them suitable for complex construction environments.

This project is fully implemented in the company's standardized production workshop. The entire production line-from laser cutting, processing, assembly, welding, and inspection to painting-is seamlessly connected, avoiding quality fluctuations and cycle delays caused by outsourced processes. With over two decades of structural component manufacturing experience, the company's production team can accurately address various technical challenges in guard plate production. Additionally, a complete production ledger has been established to track each batch of products throughout the entire process, ensuring that every delivered support wheel guard plate meets customer requirements and industry standards.