Device and method for pressing laser welding joint of stainless steel rail passenger car side wall
A technology of rail passenger cars and pressing devices, which is applied to laser welding equipment, welding equipment, vehicle parts, etc., and can solve problems such as inability to achieve welding
Active Publication Date: 2018-09-07
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology
Since the side wall 1 has a curved surface structure and is formed by welding the multi-layer structure of the outer plate, corrugated plate, column, and side beam, even if the vacuum adsorption device is used to realize the positioning basis of the outer plate 1-1 of the side wall and the existing clamping and positioning tool However, it is impossible to use the existing clamping and positioning tool to make each laser seam welding joint (for example, the seam welding joint of each corrugated plate and the outer plate, and the seam welding joint of each column and each corrugated plate) , side girder and outer panel seam welding joint) meet the requirements of compaction, and then it is impossible to use laser seam welding technology to weld the side wall 1
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[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.
[0037] Such as Figure 3 to Figure 13 As shown, the laser stitch welding joint pressing device for the side wall of a stainless steel rail passenger car of the present invention includes a corrugated plate and a side beam pressing tool A, a column pressing tool B and a pressing roller mechanism C. The pressing roller mechanism C has the function of cooperating with the laser welding head to realize the pressing function of various welding seam positions synchronously. The pressing pressure value is set through the automatic programming software of the laser stitch welding robot to realize the automatic welding and pressure of the laser stitch welding.
[0038] The corrugated plate and edge beam pressing tool A includes eighteen first pressing mechanisms 2, four second pressing mechanisms 3, one third pressing mechanism 4 and two fourth pressin...
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The invention discloses a stainless steel railway coach side-wall laser-lap-welding joint pressing device, and relates to the technical field of railway coach laser lap welding. The stainless steel railway coach side-wall laser-lap-welding joint pressing device comprises a corrugated plate and boundary beam pressing tooling, a stand column pressing tooling and a pressing roller mechanism. The corrugated plate and boundary beam pressing tooling comprises a plurality of first pressing mechanisms, a plurality of second pressing mechanisms, a third pressing mechanism and a plurality of fourth pressing mechanisms, the stand column pressing tooling comprises a plurality of fifth pressing mechanisms, a plurality of sixth pressing mechanisms, a plurality of seventh pressing mechanisms and a plurality of eighth pressing mechanisms, and the pressing roller mechanism comprises a roller and a rotating arm. According to the stainless steel railway coach side-wall laser-lap-welding joint pressing device, the pressing and closely-attached device of a laser laser-lap-welding joint which is reasonable, effective and reliable is developed according to product structural features, can meet the technological requirements for laser lap welding, and achieve product batch and high-quality production manufacturing.
Description
technical field [0001] The invention relates to the technical field of laser stitch welding of rail passenger cars, in particular to a compression device and method for a laser stitch welding joint of a side wall of a stainless steel rail passenger car. Background technique [0002] The surface of the existing stainless steel rail vehicle body is generally a paint-free product, which is made of a beautifully brushed steel plate. After resistance welding, certain welding dents will occur, which will affect the overall appearance of the vehicle. This can be achieved by using laser stitch welding technology. There are no obvious welding traces on the exterior of the car body, the welding strength has been significantly improved, and the overall aesthetics and product quality of the vehicle have been greatly improved. Since laser stitch welding is a special application of laser welding technology, precise control of welding parameters is required to ensure welding penetration an...
Claims
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IPC IPC(8): B23K26/70B23K26/24
CPCB23K26/24B23K26/702B23K2101/006
Inventor 刘庆祝张勇冯朝明
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD