Tower crane boom welding device

Abstract

The invention discloses a tower crane boom welding device which comprises mounting and clamping mechanisms, clamping mechanisms and an automatic conveying mechanism, and is characterized in that a mounting base is mounted on the ground, a sliding assembly is arranged on the mounting base, the mounting and clamping mechanisms moving on the sliding assembly are arranged at the two ends of the sliding assembly, the two mounting and clamping mechanisms are used for clamping the ends of a chord member, the clamping mechanisms are arranged on the mounting base, the two ends of the chord member are clamped through the clamping mechanisms, the automatic conveying mechanism is arranged on one side of the mounting base, and the chord member is automatically mounted and dismounted through the automatic conveying mechanism. The chord member of the lifting arm can be conveniently clamped, meanwhile, clamping and limiting of the chord member are achieved in an automatic clamping mode, and bending deformation of the middle section of the chord member during welding is prevented. Meanwhile, automatic clamping and unloading are conducted, so that the clamping speed and the disassembling speed are high, the machining efficiency of the lifting arm is improved, and the production process tends to be simplified.

Description

technical field [0001] The invention relates to the field of production equipment of construction machinery tower cranes, in particular to a welding device for the boom of a tower crane. Background technique [0002] Now when the tower crane boom is welding, it is necessary to correct the direction of the three chords first, and then the connecting rod connecting the chords is welded on the chords. Now the processing method of the tower crane boom is to clamp and position the three chords On the tooling, when the chord is clamped, the end of the chord is generally fixed on the tooling by the bolt (that is, the tooling is provided with a pin hole for the bolt to pass through, and when the chord is clamped, it is necessary to The pins pass through the holes at the end of the chord and the holes on the tooling respectively, so as to realize the clamping), because the precision requirements of the end of the lifting arm of the tower crane are relatively high, so the cooperation ...

AI Technical Summary

Problems solved by technology

[0002] Now when the tower crane boom is welding, it is necessary to correct the direction of the three chords first, and then the connecting rod connecting the chords is welded on the chords. Now the processing method of the tower crane boom is to clamp and position the three chords On the tooling, when the chord is clamped, the end of the chord is generally fixed on the tooling by the bolt (that is, the tooling is provided with a pin hole for the bolt to pass through, and when the chord is clamped, it is necessary to The pins pass through the holes at the end of the chord and the holes on the tooling respectively, so as to realize the clamping), because the precision requirements of the end of the lifting arm of the tower crane are relatively high, so the cooperation between the pin and the hole at the end of the lifting arm / hole on the tooling The precision is relatively high, so it is more difficult to assemble (that is, when clamping, when the chord weighing up to 2 tons is in a suspended state, the chord must be aligned with the connecting seat hole, and then the pin should be used to Connection, this process is highly demanding and difficult to operate, and the slightest deviation cannot meet the installation requirements), resulting in relatively low assembly efficiency, which reduces the welding processing efficiency and processing difficulty of the tower crane boom. Manual clamping is required when clamping, and manual disassembly is also required when disassembling, so that the labor intensity of the staff is relatively high, and the labor population increases at the same time, which increases the cost of boom processing

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