Positioning and fixing mechanism for welding plate bodies of metal arm of crane

Abstract

The invention discloses a positioning and fixing mechanism for welding plate bodies of a metal arm of a crane. The positioning and fixing mechanism comprises a main bottom frame. The front portion, middle portion and rear portion of the top face of the main bottom frame are each fixedly provided with a supporting frame. Each supporting frame is fixedly provided with a limiting and lifting mechanism. The bottom of each limiting and lifting mechanism is fixedly provided with a connecting and limiting block. The left side and the right side of each connecting and limiting block are each fixedly provided with an electromagnet block. The middle of the top face of the main bottom frame is provided with an installing long groove. A lower through hole is formed in the bottom face of the installinglong groove. A bottom electromagnet plate is inserted in and sleeved with the installing long groove. The bottom face of the bottom electromagnet plate is fixed to the bottom face of the installing long groove. By means of the positioning and fixing mechanism, two side welding plates can be automatically adsorbed and pressed onto the top face of a bottom long plate to be fixed, manual welding isfacilitated, there is no need to perform operation by multiple persons at the same time, and the sum of labor is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of engineering machinery manufacturing equipment, in particular to a positioning and fixing mechanism for welding a metal arm plate body of a crane. Background technique [0002] In the existing construction machinery, such as cranes, excavators, etc., it is necessary to make beams, metal arms, etc., and the beams, metal arms, etc. are welded with multiple transverse plates and multiple side plates to form a long box-like structure. , while the existing beams, metal arms, etc. manually fix the bottom plate, and then place side plates one by one on both sides of the bottom plate, which requires manual support of the side plates, and another operator performs preliminary fixation through manual spot welding. , after it is preliminarily fixed, then continuous welding is carried out, which is very troublesome when placed, requiring many people to operate at the same time, with low efficiency and poor effect. C...

AI Technical Summary

Problems solved by technology

[0002] In the existing construction machinery, such as cranes, excavators, etc., it is necessary to make beams, metal arms, etc., and the beams, metal arms, etc. are welded with multiple transverse plates and multiple side plates to form a long box-like structure. , while the existing beams, metal arms, etc. manually fix the bottom plate, and then place side plates one by one on both sides of the bottom plate, which requires manual support of the side plates, and another operator performs preliminary fixation through manual spot welding. , after it is initially fixed, then continuous welding is performed, which is very troublesome to place, requiring multiple people to operate at the same time, with low efficiency and poor effect

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