Vehicle roof positioning and machining auxiliary tool and vehicle roof integrated machining method based on same

Abstract

The invention relates to a vehicle roof positioning and machining auxiliary tool and a vehicle roof integrated machining method based on the same, and belongs to the field of an integrated manufacturing device and method of a railway vehicle roof structure. The vehicle roof positioning and machining auxiliary tool comprises middle arc plate through groove positioning mechanisms and a vehicle roof blind hole forward mounting quick positioning mechanism, wherein each of the middle arc plate through groove positioning mechanisms comprises a base, vertical height guide rails, a vertical sliding block, a height adjusting cylinder, a hinged shaft seat and a through groove positioning pressing plate; each of the hinged shaft seats comprises a hinged shaft base plate, a through groove positioning pressing plate rotating shaft and a second hinged shaft rotating shaft; and each of the through groove positioning pressing plates comprises a hinged shaft connecting plate and a T-shaped through groove positioning block. According to the vehicle roof positioning and machining auxiliary tool and the vehicle roof integrated machining method based on the same, the improved process is greatly simplified in steps, the pairing welding process is simple and efficient, the dimensioning measuring process is rapid and accurate, and a new way is provided for the improvement of the working efficiency and the creation of economic benefits.

Description

technical field [0001] The invention belongs to the field of integral manufacturing devices and manufacturing methods for rail vehicle roof structures, and in particular relates to an auxiliary roof processing and positioning tooling and an overall roof processing method based on the tooling. Background technique [0002] Cut to length, that is, the known length given by the theoretical size of the drawing on the workpiece or the known size given by the process requirements, this technical term is a well-known and commonly used abbreviation in the field of machining large parts of trains. [0003] The roof structure mainly refers to the overall structure of the arc-shaped roof of the rail vehicle formed by splicing and welding five long aluminum alloy profiles. Such as figure 1 and figure 2 As shown, the roof structure includes a central arc plate 1, two transition arc plates 2 and two slope arc plates 3, the central arc plate 1 is located on the center line of the roof s...

AI Technical Summary

Problems solved by technology

[0019] In order to solve the problem that the existing overall machined positioning tooling formed by multiple sets of arc plate positioning mechanisms does not have the function of accurately positioning the XOZ plane on the overall structure of the roof, it is practical for the arc surface of the roof after the overall assembly and welding. The position determination method ignores the influence of welding deformation, so there is a data deviation between its positioning effect and the position of the theoretical coordinate system, which cannot well meet the needs of NC programming and processing

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