Underframe frame welding auxiliary tool and method thereof
A technology for auxiliary tooling and chassis, applied in welding/cutting auxiliary equipment, auxiliary devices, welding equipment, etc., can solve problems such as increasing the workload of adjustment and adjustment and difficulty of adjustment and correction, affecting the assembly of components in the subsequent process, and reducing production efficiency. , to meet the requirements of ensuring weld quality and product size, improving welding quality and improving production efficiency
Pending Publication Date: 2019-11-22
BOMBARDIER SIFANG QINGDAO TRANSPORTATION
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Problems solved by technology
On the one hand, if the design of the assembly welding tooling or the assembly steps are unreasonable, it will increase the difficulty of assembling the chassis frame and seriously affect the quality of the weld; It leads to product scrapping, and at the same time increases the workload of repairing and the difficulty of repairing and rectifying, reducing production efficiency
Method used
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Embodiment 1
[0040] Embodiment 1, the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0041] Such as figure 1 and figure 2 As shown, the aluminum alloy underframe frame assembly applied to rail vehicles is welded by positioning side beams 600, adjusting side beams 800 and friction welding floor 700, and the weld joints are in the form of plug-in 4V butt welds.
[0042] Such as Figure 3 to Figure 8 As shown, the underframe frame welding auxiliary tooling includes:
[0043] A group of tooling longitudinal beams 6 arranged on the left and right along the direction of the left and right beams;
[0044] There are two groups of left and right and several tooling support beams 5 fixedly connected to the tooling longitudinal beam 6;
[0045] Each pair of left and right symmetrically arranged tooling support beams 5 is fixedly connected with an underframe reversed tooling beam 2;
[0046] Along the lateral side of each underframe r...
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The invention relates to an underframe frame welding auxiliary tool and a method thereof. The integrated underframe frame group welding tool and the welding method thereof are provided to be compatible with an underframe reverse and normal position grouping welding process, and an optimization method is formulated for the grouping welding and alignment process, so that the problem that an underframe frame is difficult to assemble and adjust is solved, the requirements of welding process specifications for welding seam gaps are met, the welding quality is guaranteed, and the production efficiency is improved. The underframe frame welding auxiliary tool comprises a set of left and right tool longitudinal beams which are arranged in an auxiliary mode in the left and right side beam directions, wherein a plurality of tool supporting beams are fixedly connected to the tool longitudinal beams, and an underframe reverse position tool cross beam is fixedly connected between each of the left and right symmetric tool supporting beams; an underframe normal position tool cross beam which is in vertical driving connection through a combined linkage hydraulic oil cylinder is arranged on the transverse side portion of each underframe reverse position tool cross beam; and a positioning side edge beam positioning device and an adjusting side edge beam positioning device are respectively arranged at the two side ends of each underframe reverse position tool cross beam.
Description
technical field [0001] This application aims at the welding of underframe frame components of rail vehicles, and proposes a welding auxiliary tooling and assembly welding method for underframe side beams and friction welding floors, which belongs to the field of mechanical manufacturing and welding. Background technique [0002] With the rapid development of rail vehicle industrialization, the requirements for frame assembly welding precision in the field of car body manufacturing are getting higher and higher. [0003] As the main load-bearing part of the car body, the size of the aluminum alloy underframe directly affects the matching assembly within the tolerance range of the side wall, roof, and end wall. As the pre-process of the underframe, the frame assembly welding of the underframe directly affects the size after welding. It affects the positioning welding of post-process parts and the inspection after the chassis assembly, so higher requirements are put forward for...
Claims
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IPC IPC(8): B23K20/26B23K20/12B23K37/04B23K31/02
CPCB23K20/126B23K20/122B23K31/02B23K37/0443B23K2101/006
Inventor 田玉吉王洋徐晓东王钊
Owner BOMBARDIER SIFANG QINGDAO TRANSPORTATION