Flexible automatic welding production line for electric four-wheel vehicle frame

Abstract

The invention provides a flexible automatic welding production line for an electric four-wheel vehicle frame. The flexible automatic welding production line comprises a front workstation for welding of a front assembly of the electric four-wheel vehicle frame, a rear workstation for welding of a rear assembly of the electric four-wheel vehicle frame, a first chassis workstation, a second chassis workstation, a left door workstation, a right door workstation, a first vehicle frame assembly workstation and a second vehicle frame assembly workstation, wherein the first chassis workstation and thesecond chassis workstation are used for chassis welding of the electric four-wheel vehicle frame, the left door workstation is used for welding of a left door assembly of the electric four-wheel vehicle frame, the right door workstation is used for welding of a right door assembly of the electric four-wheel vehicle frame, and welded workpieces on all the workstations and a finished rear door assembly are conveyed to the first vehicle frame assembly workstation for completing primary welding of a vehicle frame assembly, then the workpieces are transferred to the second vehicle frame assembly workstation for completing overall welding assembly, and U-shaped arrangement facilitating the operation of conveying the welded workpieces to the first vehicle frame assembly workstation and the second vehicle frame assembly workstation at the shortest distance is formed overall; and welding is divided into eight processes, a three-shaft overturning type welding positioner for workstation exchangeamong feeding, discharging and welding and autoroatation of each workstation is arranged, and the working efficiency of a welding robot is maximized.

Description

【Technical field】 [0001] The invention relates to automatic production technology, in particular to a flexible automatic welding production line for electric four-wheel vehicle frames. 【Background technique】 [0002] Electric four-wheel vehicle is a new energy vehicle. Electric vehicles have been popular all over the country. Unlike the vehicles commonly used today, they cause great environmental pollution. The characteristics of light, energy-saving and pollution-free electric four-wheel vehicles, Make electric four-wheel vehicle more and more extensively be welcomed. [0003] However, the frame of a four-wheel electric vehicle is composed of more than 240 welded parts of pipe fittings, plate parts, and stamping parts. Most of the parts are special-shaped sheet metal parts, and the welding sequence of each part of the frame has strict requirements; There are many parts in the four-wheel vehicle frame, and the welding production of the existing four-wheel electric vehicle f...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the quality problems of missing stitching and missing welding in the existing tailor-welding process of the vehicle frame and the safety problem of the frame turning operation, the invention provides a robot-automatic welding method, w

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