Tailor-welding method of excavator main platform

Abstract

The invention provides a tailor-welding method of an excavator main platform. The tailor-welding method comprises the following steps: hanging a main bottom plate in a fixture, pressing the fixture after positioning with a centre of rotation; hanging a left side plate assembly on the main bottom plate to be fixed by spot welding; hanging a front closing plate on the main bottom plate to be fixed by spot welding; hanging a beam on the fixture to be fixed by spot welding; hanging a right side plate assembly on the main bottom plate to be fixed by spot welding; sectionally welding the joints among the left side plate assembly, the right side plate assembly, the front closing plate and the beam; then arranging a left plug plate and right lug plate in the fixture to be fixed by spot welding. The tailor-welding method of the excavator main platform provided by the invention comprises the following steps: firstly positioning with the centre of rotation of the main bottom plate, orderly combining other parts at a positioned left side plate assembly, and sectionally welding the joints among the left side plate assembly, the right side plate assembly, the front closing plate and the beam, thereby improving the welding quality and efficiency; and the welding can achieve the assembling requirement.

Description

technical field [0001] The invention relates to a tailor welding method, in particular to a tailor welding method for an excavator main platform. Background technique [0002] In the excavator industry, once the processing accuracy and quality fail to meet the requirements or the production cycle is too long, it will directly affect the performance and production output of the whole machine. In production practice, people tend to focus on processing equipment and tooling to ensure accuracy, while processing methods are often routine without major changes. Due to this reason, the process of tailor welding of the excavator is very rough, there is no certain sequence of steps in the process of tailor welding, and the parts that are seen are tailor welded, resulting in excessive size errors of tailor welding, and then relying on Good machining equipment to ensure processing requirements increases the number of machining equipment in the workshop, which not only increases the f...

AI Technical Summary

Problems solved by technology

In production practice, people tend to focus on processing equipment and tooling to ensure accuracy, while processing methods are often routine without major changes

Due to this reason, the process of tailor welding of the excavator is very rough, there is no certain sequence of steps in the process of tailor welding, and the parts that are seen are tailor welded, resulting in excessive size errors of tailor welding, and then relying on Good machining equipment to ensure processing requirements increases the number of machining equipment in the workshop, which not only increases the floor area but also increases the processing time of large equipment, seriously affecting production efficiency

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