Automatic production system for railway wagon lower side door assembly

Abstract

The invention belongs to the technical field of lower side door production systems, and particularly relates to an automatic production system for a railway wagon lower side door assembly. According to the technical scheme, the automatic production system for the railway wagon lower side door assembly comprises a door plate feeding area, a hinge feeding area, a hinge pre-positioning device, a resistance spot welding device, an automatic welding device and a stacking area which are sequentially arranged, and welding manipulators are installed on the resistance spot welding device and the automatic welding device; the automatic production system further comprises a track, and a plurality of transfer robots for transferring materials are mounted on the track; the hinge pre-positioning device comprises a pre-positioning platform, and a plurality of hinge fixing and positioning check blocks used for positioning hinges and a plurality of hinge clamping air cylinders used for clamping the hinges are installed on the pre-positioning platform. The automatic production system for the railway wagon lower side door assembly can ensure that the hinges are accurately positioned on the resistance spot welding device.

Description

technical field [0001] The invention belongs to the technical field of lower side door production systems, and in particular relates to an automatic production system for the composition of lower side doors of railway wagons. Background technique [0002] At present, the production process of the lower side door of domestic railway freight car enterprises is mostly: the preparation of the lower side panel parts, and then transfer to the marking process of the lower side door panel (currently, the pneumatic engraving method is mostly used), and then transfer to the lower side door group after completion The welding production line assembles and welds parts such as folding pages and hanging rings. [0003] Problems existing in the existing production process: [0004] a. From the perspective of logistics and transportation, the marking processing and assembly welding of the lower and side doors are not integrated in one production line, and the layout of the work site is scat...

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Problems solved by technology

[0004] a. From the perspective of logistics and transportation, the marking processing and assembly welding of the lower and side doors are not integrated in one production line, and the layout of the work site is scattered, adding a process of material pounding and loading and unloading and stacking, and material transfer takes time and manpower. Higher shipping costs

[0005] b. From the perspective of equipment, the existing lower and side door assembly welding production lines of various enterprises are not highly automated, and the assembly of workpieces is completed manually. The welding process is manual welding except for the gantry welding machine used on the front of the folding page.

The gantry welding machine can only weld the long welds in the middle of the fold, and the welds at both ends also need manual welding, and the welding process needs to be attended and maintained

[0006] c. From the perspective of labor intensity, the marking and engraving process adopts manual loading and unloading, and the labor intensity of the operator is high

[0007] d. From the perspective of the working environment, the marking and engraving process adopts the pneumatic marking method, and the on-site working noise is large (above 100 decibels); the welding fume purification effect of the welding production line site is not good, and the site environment is poor

[0008] e. From the perspective of staffing, there are 2 people for engraving the lower side door mark, and 6 people / single shift for the assembly and welding production line, and the labor cost is high.

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