Assembly line production method for single crane boom and assembly line production device

Abstract

The invention discloses an assembly line production method for a single crane boom. The assembly line production method comprises the following steps of hanging an upper chord member and two lower chord members to a chord member conveying line for conveying the chord members, wherein one end of the upper chord member and one end of each of the lower chord members are welded with joints; when the chord members are conveyed to a swing welding station, feeding the chord members and a web member to an overall swing welding tool for performing swing arrangement and spot welding on all the parts to form a crane boom frame; hanging the crane boom frame from the overall swing welding tool to a carrying roller conveying line, conveying the crane boom frame to a crane boom frame welding station by the carrying roller conveying line, and firmly welding all the parts of the crane boom frame on the crane boom frame welding station; conveying the welded crane boom frame to a single section forming station through the carrying roller conveying line, hanging the crane boom frame to a single section forming tool, and spot-welding joints on the end parts, which are not provided with the joints, of the chord members to form a crane boom section; hanging the crane boom section from the single section forming tool to a plate chain conveying line, conveying the crane boom section to a crane boom section welding station by the plate chain conveying line, and firmly welding the joints and the chord members on the crane boom section welding station. The invention also provides an assembly line production device for the single crane boom.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to an assembly line production method and assembly line production device for a single-section boom of a crane. Background technique [0002] In recent years, with the in-depth development of the construction industry, tower cranes (referred to as "tower cranes") have been widely used. The promotion and use of tower cranes has gradually changed the vertical and horizontal transportation methods of construction, created safe working conditions for operators, and improved work efficiency. [0003] The tower crane boom is the most basic and important component of the tower crane. At present, the tower crane is developing in the direction of large and super large. The tower crane boom is generally assembled and connected by multiple boom sections to reduce the weight of a single boom section. The length and weight are convenient for hoisting when erecting the tower and transportation wh...

AI Technical Summary

Problems solved by technology

[0004] With the development of society, the demand for tower cranes is gradually increasing. The existing production mode of single jib section can no longer meet the market demand. Manually flipping workpieces has low processing efficiency, high labor intensity, and low safety factor; low production efficiency, long welding transfer time, and serious time waste due to waiting for driving between stations; low safety factor, and poor function of the material flexible system

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