Welding clamping fixture for midpiece of monocoque bus frame

Abstract

The invention relates to a welding clamping fixture for a midpiece of a monocoque bus frame. The welding clamping fixture comprises an underframe on which two guide rails are arranged in parallel, wherein at least two longitudinal beam positioning devices perpendicular to the guide rails are arranged on the guide rails, each longitudinal beam positioning device comprises a bracket, slider blocks which are matched with the guide rails in a guiding manner along the length direction of the guide rails are arranged at the bottoms of the brackets, a longitudinal beam clamping seat is arranged at the top of each bracket, and a diagonal-bracing clamping seat is arranged between the two longitudinal beam clamping seats; and traverse beam positioning devices are arranged at outer sides of the both ends of each longitudinal beam positioning device on the underframe, and each traverse beam positioning device comprises an adapting pole on which a traverse beam clamping seat is arranged. When the welding clamping fixture is in use, the longitudinal beam positioning devices can be used for positioning the longitudinal beams and the diagonal bracings of the bus frame, and the traverse beam positioning devices are used for positioning the traverse beams of the bus frame, the longitudinal beam positioning devices can be regulated according to different spacing distances among the traverse beams of the bus frame, and the traverse beam positioning devices can be replaced according to different bus frame structures, therefore, the welding clamping fixture can satisfy the welding requirements of bus frames of various structures through simple regulation.

Description

technical field [0001] The invention relates to a welding mold for a vehicle frame in mechanical manufacturing, in particular to a welding mold for the middle section of a vehicle frame of a full-loaded passenger car. Background technique [0002] Passenger cars generally adopt small batches and various types of customized production, especially the production mode of full-carrying buses. However, buses of the same length in the same order often have different types of frame structures, and the lead time required by customers is generally relatively short. short. [0003] The frames of full-loaded passenger cars are mostly welded square tubes. When designing models, the conversion of models is realized by changing the length of the frame, and the change of frame length is mainly realized by lengthening (or shortening) the middle section of the frame. , which has just caused the problem that the middle sections of different types of vehicle frames need to be produced in a re...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a welding mold for the middle section of the frame of a full load-bearing bus, aiming to solve the problem of in

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