Flexible adjusting and repairing device for aluminum alloy profile of railway vehicle

Abstract

The invention discloses a flexible adjusting and repairing device for an aluminum alloy profile of a railway vehicle. The flexible adjusting and repairing device comprises a hydraulic push rod and a flexible adjusting and repairing assembly connected with the hydraulic push rod; the flexible adjusting and repairing assembly comprises a base and a plurality of adjusting units connected with the base; and the adjusting units can adjust the relative distance between the adjusting units and the base, and the upper ends of the adjusting units make contact with the lower surface of the profile. According to the device, from the perspective of improving the process flexibility of the railway vehicle aluminum alloy profile adjusting and repairing device, improving the quality of the adjusted and repaired product and reducing the process defects, the adjusting and repairing device is composed of the plurality of adjusting units, different adjusting and repairing model surfaces are formed by changing the heights of the corresponding adjusting units, therefore, local contact of the aluminum alloy profile and adjusting and repairing molds is achieved in the adjusting and repairing process of the aluminum alloy profile, it is guaranteed that a workpiece is evenly stressed and deforms stably, and the problems that in the adjusting and repairing process of an existing solid sample block, the local curvature cannot be adjusted, efficiency is low, and quality is poor are solved.

Description

technical field [0001] The invention relates to the technical field of production and processing of aluminum alloy profile parts for rail vehicles, in particular to a flexible adjustment device suitable for secondary adjustment of local contours during the production and processing of aluminum alloy profile parts for rail vehicles. Background technique [0002] Rail vehicle aluminum alloy profile parts have the characteristics of complex cross-sectional profile and high deformation resistance. In most cases, it is difficult to meet the precision requirements after the aluminum alloy parts are formed once. Require. [0003] In the prior art, see figure 1 As shown, the three-point bending adjustment method is currently the main method for local profile adjustment of aluminum alloy parts of rail vehicles. The process is as follows: place the aluminum alloy profile workpiece between the limit roller of the workbench and the solid adjustment mold, start the equipment, drive the...

AI Technical Summary

Problems solved by technology

[0004] During the repairing process of aluminum alloy profiles, the contact area between the physical repairing mold and the workpiece is small, and the contact part of the workpiece is subject to a large concentrated force during the repairing process, and the workpiece is easy to lose stability, resulting in defects such as deformation or even overall bending; On the one hand, since the contact surface between the adjustment mold and the profile is a planar structure, there is a local flat section after the adjustment, which has a great influence on the overall curvature of the profile and a large change in the local profile of the profile, requiring multiple and continuous adjustments to make the The accuracy of the profile finally reaches the standard, which restricts the repair efficiency and quality of the aluminum alloy profile

Images