Special assisting device for laser welding of aluminum alloy frame vehicle body and bottom plate
A body floor and laser welding technology, applied in the field of body, can solve the problems of water leakage, air leakage, rework waste and other problems of the whole vehicle, and achieve the effects of avoiding rework waste, ensuring welding quality and easy maintenance
Active Publication Date: 2018-11-20
奇瑞新能源汽车股份有限公司
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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] With reference to the accompanying drawings, the specific implementation of the present invention will be further described in detail through the description of the embodiments.
[0025] Such as Figure 1 to Figure 5 As shown, the special auxiliary tool for laser welding of aluminum alloy frame body floor includes a pressing tool frame 1 and a pressing arm; wherein, the pressing tool frame 1 is provided with a set of pressing devices for pressing the floor welding surface 2.
[0026] When laser welding a floor with a large area and poor rigidity and an aluminum alloy frame body, ensure that multiple welding surfaces can be pressed at the same time to prevent welding defects such as floor burn-through and weld depression, improve welding stability, and avoid waste of rework and Risks such as water leakage and air leakage of the whole vehicle to ensure welding quality.
[0027] The compaction tooling frame 1 is a square frame structure, which is formed by welding with square t...
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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, and 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 OEMs, the application of aluminum alloy body and laser welding is becoming more and more extensive; the body frame and floor parts inevitably have deviations in the processing process. For floor parts with large laying areas and weak rigidity, use conventional It is difficult for the welding jig to ensure that multiple pressing surfaces are pressed in place at the same time, and it is easy to have a gap between the floor and the body frame welding surface. [0003] Laser welding is more sensitive to the requirements of the matching gap of the parts. Generally, the matching gap is required to be within 0.3mm. If the gap is larger than this limit, welding defects such as floor burn-through and weld depression will occur. The problems c...
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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