Recently, STEP, a high-quality robot brand, announced that the intelligent robot welding workstation at the foot of the power tower has achieved great results again——for the second time, it won the batch batches of two iron tower manufacturers under Power Construction Corporation of China, which ranks 107th in the Fortune Global 500 in 2021. Order. This is the second time that it has been recognized by leading companies in the industry after STEP tower foot welding intelligent robot welding workstations were delivered to these two companies in 2021. This marks that the STEP robot teaching-free and intelligent thick plate welding technology has gained a leading edge in the power tower industry. In the future, STEP will provide users with intelligent welding robots and integrated solutions in the steel structure welding blue ocean market that "matches imports and surpasses imports".

　　China Power Jianwu Tower Co., Ltd. has put into production and used the STEP power tower foot intelligent robot welding workstation for one year. In the daily workshop production, Wuta Company has adopted the method of resting people and not stopping horses. Over the past year, the working hours have exceeded 18 hours a day. Practice has proved that the STEP power tower foot intelligent robot welding workstation has high working efficiency and stable performance, which can fully meet the needs of the power tower industry, help enterprises achieve fast delivery, and effectively reduce labor costs.

　　The steel structure industry is divided into equipment steel structure, building steel structure and bridge steel structure. The power tower belongs to the equipment steel structure. The common characteristics of the industry are multi-variety, small batch, thick plate welding, and high requirements for weld strength. The industry is currently in a stage of rapid development. Welding is a key technology and quality control method for the manufacture and installation of steel structures. It plays a vital role in engineering construction. However, the number of welders used is quite large, and welders are expensive and difficult to recruit. It is an important blue ocean market for welding robots.

　　Electric power tower is a typical project-based industry. Due to the diversity of steel structure forms and high degree of product customization, it presents the characteristics of multiple varieties and small batches. In addition, the plates are all thick plates, and some products even have grade weld requirements. In the process, due to the poor product consistency due to the deviation of assembly and blanking, robots have not been able to replace manual welding in the past.

　　Aiming at the pain points of users in the steel structure industry, STEP innovatively uses parametric programming and laser-guided welding technology to build a STEP tower foot welding intelligent robot workstation, allowing users to input simple workpiece size information, and the robot realizes welding through the laser recognition system. Acquisition of seam trajectory, automatic calling of welding expert library parameters, so as to realize teaching-free and intelligent welding.

　　Advantages of STEP welding robot system

　　□ The system is mainly composed of STEPSA8/1800 robot, laser sensor, Aotai Pulse MIG-630RP welding power source and large tonnage positioner.

　　□ According to the characteristics of multi-variety and small-batch products, the STEP robot has developed a parameterized programming software with deep customization by opening the underlying code, so that the on-site workers can quickly put into production by simply inputting the workpiece size information.

　　□ Aiming at the problem of poor workpiece consistency caused by on-site workpiece assembly and blanking deviation, the system combines welding process requirements, workpiece information identified by laser sensors, and accessibility requirements to accurately plan welding trajectories and guide the robot to accurately reach the weld position , can identify various types of welds such as lap joints, butt joints, fillet joints, etc., and can effectively resist arc light, splash and high temperature.

　　The finished product of robot welding tower foot workpiece

　　Pulse MIG-630RP welding power source is an industry-specific welding power source developed by STEP and its strategic partner Shandong Aotai Electric for the long-term cooperation of thick and ultra-thick plates. The welding is more full, uniform and stable, and the work efficiency is improved at the same time.

　　In the future, STEP will deeply cultivate the power tower industry, provide more diverse robot intelligent solutions for the industry, and promote and apply the technical achievements and application experience accumulated in the power tower industry to the new blue ocean of the steel structure industry.