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根据液力变矩器上盖连接块焊接接头形式、动平衡使用特点、焊缝金属高性能指标、焊接质量零缺陷控制要求，采用机器人＋变位器柔性焊接系统，解决了焊缝几何尺寸一致性、空间位置对称性、填充金属均匀性的技术关键。并阐述了机器人系统的焊接电源、变位器和送丝机构的合理配置，通过工艺试验确定了液力变矩器上盖连接块ＦＣＡＷ工艺参数以及防止焊接缺陷的工艺措施。
According to the form of welding joint of torque converter upper cover connecting block, the characteristics of dynamic balance, the high performance index of weld metal and the zero defect control requirements of welding quality, the flexible welding system of robot + Sexual, spatial symmetry of position, fill the metal key to the uniformity of technology. The reasonable configuration of the welding power source, the positioner and the wire feeding mechanism of the robot system is expounded. The technical parameters of FCAW for the upper cover of the torque converter and the technical measures to prevent the welding defects are determined through the process test.