A Repairing Technology for Locomotive Bogie Frame Deformation

Abstract

The invention discloses a repair process for deformation of a locomotive bogie frame. The repair process comprises the following steps that the deformed frame is placed on a three-coordinate detectionmachine, detecting and scribing are carried out, positions and residual parts of the dimension deviation are detected; the residual parts belong to which type of residual condition is judged and arecorrespondingly repaired; the repaired frame is placed again on the three-coordinate detection machine for comprehensive detection, and whether the frame meets the machining requirement or not is judged through the scribing; and if the frame does not meet the machining requirement, the deformed frame is subjected to pressure regulating to a qualified tolerance range by means of mechanical cold pressure straightening and / or flame heating and straightening, and finally, the adjusted frame is machined into a qualified frame. According to the repair process, deformed frame products with seriousquality problem are repaired, and the purpose of ensuring the repairing quality, saving the manufacturing cost and improving the economic benefit is achieved.

Description

technical field [0001] The invention relates to the field of locomotive vehicle bogie frame production and manufacturing, and more particularly, relates to a repairing process for locomotive bogie frame deformation. Background technique [0002] In the manufacture of rolling stock bogies, the product quality of the frame directly affects the manufacturing quality of the bogies. In the production and manufacture of various batches of locomotive and vehicle frames, sometimes defects such as trachoma, depression, and shrinkage of the frame may occur due to defects in steel castings, and sometimes there may be problems such as size out-of-tolerance due to welding deformation, resulting in these problems occur. [0003] In the past, the following measures were usually taken to deal with the deformed frame of the locomotive bogie: [0004] (1) After the frame is welded and before machining, the frame with serious blisters, shrinkage and other defects found in cast steel and othe...

AI Technical Summary

Problems solved by technology

[0006] In production and manufacturing, the existing processing method is completely implemented according to the requirements of product quality. Although this processing method strictly controls the production quality of the product, it will cause a great impact on the manufacturing cost of the locomotive product. Waste directly affects the economic benefits of the company

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