Technological method for processing vehicle timber support

Abstract

The invention relates to a vehicle framework processing technique and method, which implements the tuning, fixing, assembling and welding of a metal roughcast of a vehicle framework, the first ball blast processing, the fault detection of welded parts and the finish machining of the framework, and implements the secondary assembling and welding according to design requirements, assembles and welds the parts on each base of the framework, implements the secondary ball blast processing, removes the oil stain, roll scale and dirt on the surface of each framework, sprays undercoat and finish coat on the surface of each framework after dust removing processing, and finally assembles each framework after spraying treatment. The invention adopts the processing technique and method that implements the processing previously and then the ball blast, and finally the integral spraying and assembling, thus leading the metal framework surface to be even and smooth, reaching the requirements of surface roughness, simultaneously leading the metal surface to have certain roughness, improving paint adhesive attraction, leading the paint surface to be even and smooth, ensuring product appearance quality, lowering the laboring intensity of workers and production cost, having reasonable and reliable process flow, and improving production efficiency.

Description

technical field [0001] The invention relates to a processing method for a vehicle frame, belonging to the technical field of mechanical processing. Background technique [0002] At present, in the actual production process of the railway vehicle frame, the commonly used processing technology is: after the vehicle frame is repaired and welded, shot blasting is performed, the primer is sprayed, and the component is finished to remove the oil on the surface of the component. , to repair the primer damaged in the process of processing, then assemble the processed components, and finally spray the topcoat on the entire component. The disadvantage of using this processing method is that when removing oil stains on the surface of components that have been sprayed with primer, alkaline solutions or thinners are generally used, which will also corrode the primer that has been sprayed on the surface of components while removing oil stains. In this way, when spraying the topcoat on th...

AI Technical Summary

Problems solved by technology

The disadvantage of using this processing method is that when removing oil stains on the surface of components that have been sprayed with primer, alkaline solutions or thinners are generally used, which will also corrode the primer that has been sprayed on the surface of components while removing oil stains. In this way, when spraying the topcoat on the components, not only the surface quality of the topcoat is low, but also the adhesion of the topcoat will also decrease, and the working time is long, which will cause certain environmental pollution; For finishing, part of the primer will be damaged during the process, and manual paint repair is required. In addition, because the processed metal surface is relatively smooth, the adhesion of the paint will also be reduced, which not only increases the production cost, but also increases the worker's labor cost. labor intensity, but also affects the appearance quality of the entire vehicle frame