摘要：【中文】本发明涉及起重机技术领域，具体涉及一种起重机支腿箱焊接定位装置，能够解决现有的自动焊接装置结构复杂，成本高的问题。该起重机支腿箱焊接定位装置包括定位平台，所述定位平台上沿定位平台的翻转轴线方向间隔布置有两只以上的支撑座，所述支撑座中包括两只分别用于支撑支腿箱的轴向端部的端部支撑座，至少一个端部支撑座上设有供支腿箱沿支腿箱轴向定位的轴向定位凸起，至少一个所述支撑座上设有供支腿箱沿垂直于支腿箱轴向的方向定位在定位平台上的侧向定位凸起，设有轴向定位凸起的端部支撑座上还设有用于压向支腿箱的内侧壁以将支腿箱压在支撑座上的压板。 【EN】The invention relates to the technical field of cranes, in particular to a crane supporting leg box welding and positioning device, which can solve the problems of complex structure and high cost of the existing automatic welding device. This crane landing leg case welding position device includes locating platform, locating platform is last to have two supporting seats more than along locating platform's trip axis direction interval arrangement, including two tip supporting seats that are used for supporting the axial tip of landing leg case respectively in the supporting seat, be equipped with on at least one tip supporting seat and supply the landing leg case protruding along the axial positioning of landing leg case axial positioning, at least one be equipped with on the supporting seat and supply the landing leg case protruding along the axial direction location of perpendicular to landing leg case on locating platform, still be equipped with on the bellied tip supporting seat of axial positioning and be used for pressing to the inside wall of landing leg case in order to press the clamp plate of landing leg case on the supporting seat.