Special auxiliary tool for laser welding of aluminum alloy frame body floor
A body floor and laser welding technology, applied in the field of body, can solve problems such as air leakage, rework waste, and vehicle water leakage, and achieve the effects of avoiding rework waste, ensuring welding quality, and easy maintenance
Active Publication Date: 2020-04-24
奇瑞新能源汽车股份有限公司
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- Application Information
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Problems solved by technology
The problems caused by this lead to waste of rework, and there are risks such as water leakage and air leakage of the whole vehicle
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[0024] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.
[0025] Such as Figure 1 to Figure 5 As shown, the special auxiliary tool for laser welding of the aluminum alloy frame body floor includes a compression tooling frame 1 and a pressing arm; wherein, the compression tooling frame 1 is provided with a set of compactors for compacting the floor welding surface 2.
[0026] When laying a floor with a large area and poor rigidity for laser welding with an aluminum alloy frame body, ensure that multiple welding surfaces can be pressed together at the same time to prevent welding defects such as floor burn-through and weld sag, improve welding stability, and avoid rework and waste. Risks such as water leakage and air leakage of the whole vehicle to ensure welding quality.
[0027] The compression tooling frame 1 is a square frame structure, which is ...
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The invention discloses a special assisting device for laser welding of an aluminum alloy frame vehicle body and a bottom plate. The special assisting device comprises a compressing tool frame; the compressing tool frame is provided with a set of compressing devices used for compressing the welding surface of the bottom plate; and the compressing devices comprise compressing device shells and compressing heads, the compressing device shells are arranged on the compressing tool frame, and the compressing heads are arranged on the lower portions of the compressing device shells through elastic elements. When the bottom plate with the large laying area and poor stiffness and the aluminum alloy frame vehicle body are subjected to laser welding, it is ensured that the multiple welding surfacescan be compressed simultaneously, the welding defects of burnthrough of the bottom plate, welding depression and the like are prevented, the welding stability is improved, rework waste and the risks of whole vehicle water leakage, air leakage and the like are avoided, and the welding quality is ensured; and the structure is simple, maintenance is easy, automation is achieved, and the welding efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of car bodies, in particular to a special auxiliary tool for laser welding of aluminum alloy frame car body floors. Background technique [0002] At present, in new energy vehicle main engine factories, aluminum alloy body and laser welding are increasingly widely used; body frame and floor parts inevitably have deviations in the processing process. For floor parts with large laying area and weak rigidity, conventional It is difficult for the welding fixture to ensure that multiple pressing surfaces are pressed in place at the same time, and it is easy to cause gap problems between the floor and the welding surface of the body frame. [0003] Laser welding is more sensitive to the requirements of the fitting clearance of parts. Generally, the fitting clearance is required to be within 0.3mm. If the clearance exceeds this limit and the clearance is large, welding defects such as floor burn-through and weld sa...
Claims
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IPC IPC(8): B23K26/70B23K37/04
CPCB23K26/702B23K37/0408B23K37/0443
Inventor 李盛良茅卫东王成文刘培荣周俊锋欧阳宏业
Owner 奇瑞新能源汽车股份有限公司