A curved side wall welding device and its welding method

Abstract

The present invention provides a curved side wall welding device and a welding method thereof, which relate to the technical field of welding equipment for rail vehicles. The curved side wall welding device is used for positioning during the welding of the side walls of rail transit vehicles and includes a plurality of support platforms. The support platform includes a base, a support unit, and a clamping mechanism. The support unit is arranged on the base. There are several support units, and the several support units are arranged in sequence along the extension direction of the base. The height position of the support unit relative to the base is adjustable. The clamping mechanism is movably arranged at both ends of the base and is used to clamp and bend the edge to be bent of the side wall of the rail transit vehicle, avoiding the situation of replacing the new clamping device every time due to different inclination angles of the side wall edges of different vehicle models, solving the problems that the device for clamping the side wall of the rail transit vehicle cannot adapt to different side wall curves, and the resources and costs consumed in manufacturing the clamping devices for different models of rail transit vehicles are relatively large, and the versatility is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle welding equipment, and in particular to a curved side wall welding device and a welding method thereof. Background Art

[0002] The side walls of rail transit vehicles are usually assembled and welded from multiple long aluminum alloy profiles. Due to the differences in rail transit vehicles, their vehicle height, vehicle width and vehicle wall curvature are also different.

[0003] When welding the side walls of existing rail transit vehicles, it is necessary to place multiple long aluminum alloy profiles on a support platform. The support platform is a plurality of support platforms arranged in sequence along the length direction of the rail transit vehicle side wall. Since the curvature of the outer contours of the side walls of different models of rail transit vehicles is different, the support seats arranged on the support platform need to be processed into contoured support seats corresponding to different curvatures according to the vehicle side walls. In addition, the curvature of the side wall edges of different models is different, and a new clamping device must be replaced each time it is used. The device for clamping the side walls of rail transit vehicles cannot adapt to different side wall curves. The production of clamping devices corresponding to different models of rail transit vehicles consumes a lot of resources and costs, and has poor versatility. Summary of the Invention

[0004] In view of this, an embodiment of the present invention provides a curved side wall welding device and a welding method thereof, the main purpose of which is to improve the versatility of the clamping device of the support platform so that it can adapt to the curvature of the side wall edges of different vehicle models, thereby being more suitable for practical use.

[0005] To achieve the above objectives, the embodiments of the present invention mainly provide the following technical solutions:

[0006] In one aspect, an embodiment of the present invention provides a curved side wall welding device for positioning the side wall of a rail transit vehicle during welding, comprising a plurality of support platforms, wherein the support platforms include:

[0007] base;

[0008] A supporting unit is provided on the base. There are a plurality of supporting units, which are arranged in sequence along the extension direction of the base. The height of the supporting unit relative to the base is adjustable.

[0009] The clamping mechanism is movably arranged at both ends of the base and is used for clamping and bending the edge to be bent of the side wall of the rail transit vehicle.

[0010] Optionally, in the above-mentioned curved side wall welding device, the support platform further comprises:

[0011] A limiting device is placed on the support monomer to clamp and fix the support monomer and fix the relative position between the support monomer and the base, so that the tops of the plurality of support monomers are fixed to form a support combination that matches the side wall curve of the rail transit vehicle;

[0012] Optionally, in the above-mentioned curved side wall welding device, tracks are provided on both sides of the base;

[0013] The clamping mechanism is arranged at both ends of the base and is movably placed on the tracks. The clamping mechanism can slide towards each other along the tracks. The clamping mechanism includes:

[0014] A support, with a first guide rail slider provided at the bottom of the support. The first guide rail slider matches the track. Among them, the opposite surfaces of the supports of the opposite clamping mechanisms are the first side surfaces, and a lifting mechanism is provided on the first side surfaces;

[0015] A plug-in component is placed on the lifting mechanism. The lifting mechanism adjusts the height of the plug-in component. The plug-in component is used to plug and fix the edge to be bent of the side wall of the rail transit vehicle.

[0016] Optionally, in the above-mentioned curved side wall welding device, the lifting mechanism includes:

[0017] Vertical guide rails are placed on the first side surface. There are two vertical guide rails with a gap;

[0018] A first lead screw is vertically placed between the two vertical guide rails;

[0019] A first motor is placed on the support. The first motor drives the first lead screw to rotate. Among them,

[0020] A lifting slide plate. A second guide rail slider and a first lead screw sleeve are provided on the first side of the lifting slide plate. The second guide rail slider matches the vertical guide rail, and the first lead screw sleeve is in threaded transmission with the first lead screw;

[0021] When the first motor drives the first lead screw to rotate in the first direction, the lifting slide plate rises;

[0022] When the first motor drives the first lead screw to rotate in the second direction, the lifting slide plate descends.

[0023] Optionally, in the above-mentioned curved side wall welding device, the plug-in component includes:

[0024] A plug-in support is placed on the second side of the lifting slide plate. Support plates are provided at both ends of the plug-in support. Mounting shafts penetrate through the support plates at both ends;

[0025] The plug-in block is placed on the installation shaft. The plug-in block can rotate around the center of the installation shaft, and the plug connector of the plug-in block is inserted into the edge to be bent on the side wall of the rail transit vehicle to be welded.

[0026] The second motor is placed at one end of the plug-in support and is used to drive the plug-in block to rotate on the installation shaft to control the direction of the plug connector of the plug-in block.

[0027] Optionally, in the above curved side wall welding device, the support unit includes:

[0028] The support body includes a top connecting plate, a bottom connecting plate and two first support columns. The two first support columns are respectively connected to both ends of the top connecting plate and the bottom connecting plate, and the first support columns can movably pass through the base.

[0029] The second lead screw, the first end of the second lead screw is rotatably connected to the bottom surface of the top connecting plate, the second end of the second lead screw passes through the bottom connecting plate, and the second lead screw is in threaded transmission connection with the base. By rotating the second lead screw, the height position of the support unit is adjusted.

[0030] The limiting device is used to detachably clamp the second lead screw and fix the position of the support body.

[0031] Optionally, in the above curved side wall welding device, the limiting device includes an upper limiting plate, a lower limiting plate and two second support columns. The two second support columns are respectively connected to both ends of the upper limiting plate and the lower limiting plate, and the second support columns can movably pass through the bottom connecting plate.

[0032] A limiting groove is provided on the bottom surface of the upper limiting plate of the limiting device, and a clamping member is provided on the second lead screw. The clamping member is matched with the limiting groove. Among them,

[0033] When the limiting groove is separated from the clamping member, the second lead screw can rotate to adjust the height position of the support unit.

[0034] When the limiting groove is docked with the clamping member, the second lead screw is fixed and the height position of the support unit is fixed.

[0035] Optionally, in the above curved side wall welding device, the limiting device further includes a limiting spring. The limiting spring is sleeved outside the second support column and is placed between the bottom connecting plate and the lower limiting plate. Among them,

[0036] When the limit spring is compressed, the distance between the bottom connecting plate and the lower limit plate decreases, the limit device moves upward relative to the support monomer, and the limit card slot is separated from the card on the second lead screw;

[0037] When the limit spring resumes its elastic deformation, the distance between the bottom connecting plate and the lower limit plate increases, the limit device moves downward relative to the support monomer, and the limit card slot is engaged with the card on the second lead screw.

[0038] Optionally, in the above-mentioned curved surface side wall welding device, the support table further includes:

[0039] A single-body adjustment mechanism, movably arranged on the track of the base, for adjusting the height of the support monomer, including:

[0040] A moving bracket, slidably hanging on the two side tracks;

[0041] An adjustment device, arranged on the moving bracket, for adjusting the up and down position of the support monomer, including:

[0042] A lifting assembly, provided with a lifting mechanism and a lifting plate, and the lifting mechanism drives the lifting plate to rise or fall;

[0043] A screwing assembly, placed on the lifting plate, the screwing end of the screwing assembly is placed on the upper surface of the lifting plate, the screwing end is provided with a first insertion part, the second end of the second lead screw is provided with a second insertion part, and the first insertion part and the second insertion part are detachably docked;

[0044] A support member, placed on the upper surface of the lifting plate, including a first support member and a second support member, and the first support member and the second support member are placed on both sides of the screwing end;

[0045] A third motor, driving the screwing assembly to rotate;

[0046] When the lifting mechanism drives the lifting plate to move upward, the first insertion part of the screwing assembly is docked with the second insertion part of the second lead screw, the lower limit plate is pushed upward by the first support member and the second support member, the limit card slot is separated from the card on the second lead screw, and the screwing assembly screws the lead screw to adjust the support body to a preset position;

[0047] When the lifting mechanism drives the lifting plate to move downward, the first insertion part of the screwing component is separated from the second insertion part of the second lead screw, the lower limit plate is separated from the first support component and the second support component, the limiting device moves downward under the action of the limiting spring, the limiting card slot is engaged with the card on the second lead screw, and the second lead screw fixes the support body to a preset position.

[0048] On the other hand, an embodiment of the present invention provides a method for welding the side wall of a rail transit vehicle by using the above-mentioned curved side wall welding device, and the method includes:

[0049] Sequentially splice at least two splicing side plates to be welded to form a side wall to be welded;

[0050] Place the side wall to be welded on a plurality of support platforms arranged and placed;

[0051] Adjust the height of the support monomers so that the tops of the plurality of support monomers match the side wall curve of the rail transit vehicle to be welded;

[0052] The clamping mechanism adjusts the height position of the insertion component and the angle of the insertion block, and inserts the insertion head of the insertion block into the edge to be bent of the side wall to be welded;

[0053] The clamping mechanism slides on the slide rail of the base, adjusts the position of the clamping mechanism on the base, and bends the edge to be bent of the side wall to be welded;

[0054] Press the surface of the side wall of the rail transit vehicle to be welded, and perform welding operations.

[0055] By means of the above technical solutions, the curved side wall welding device and its welding method provided by the technical solutions of the present invention have at least the following advantages:

[0056] A curved sidewall welding device provided by the present invention is used for positioning during the welding of the sidewalls of rail transit vehicles. It includes several support platforms, and the several support platforms are arranged side by side in sequence along the length direction of the sidewall of the rail transit vehicle. The support platform includes a base, support monomers, and a clamping mechanism. The support monomers are arranged on the base, and there are several support monomers, which are arranged in sequence along the extension direction of the base. The height position of the support monomers relative to the base is adjustable. For the bending curves of the sidewalls of different train models, the height of each support monomer is adjusted respectively. The top of each support body can be regarded as a point, and the tops of multiple support bodies are regarded as multiple points. The multiple points are fitted to form a support point curve to complete the matching with the bending curve of the train sidewall, ensuring that the support platform can adjust different support seats according to the contour arc of the sidewalls of different rail transit vehicles to support the sidewalls of different shapes of rail transit vehicles. The clamping mechanism is movably arranged at both ends of the base and is used to clamp and bend the edge to be bent of the sidewall of the rail transit vehicle. The movable clamping mechanism placed on the base can adjust the clamping mechanism to fix it according to the arch height of the sidewalls of different rail transit vehicles and the inclination angles inside both sides of the sidewall, and realize the bending arc of the edge to be bent of the sidewall of the rail transit vehicle through the movement on the base, avoiding the situation of replacing a new clamping device every time due to different inclination angles of the sidewall edges of different vehicle models, and solving the problems that the device for clamping the sidewalls of rail transit vehicles cannot adapt to different sidewall curves, and the resources and costs consumed for manufacturing clamping devices corresponding to different models of rail transit vehicles are relatively large and the versatility is poor. Since the method for welding the sidewalls of rail transit vehicles applying the curved sidewall welding device has the beneficial effects analyzed above, the method for welding the sidewalls of rail transit vehicles applying the curved sidewall welding device proposed in the above embodiment of the present invention can solve the problems that the device for clamping the sidewalls of rail transit vehicles cannot adapt to different sidewall curves, and the resources and costs consumed for manufacturing clamping devices corresponding to different models of rail transit vehicles are relatively large and the versatility is poor.

[0057] The above description is only an overview of the technical solution of the present invention. In order to be able to understand the technical means of the embodiments of the present invention more clearly and implement them according to the content of the specification, the following takes the preferred embodiments of the present invention and combines with the drawings to describe in detail as follows. Brief Description of the Drawings

[0058] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only used for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0059] Figure 1It is a combined structural diagram of multiple support platforms of a curved side wall welding device provided by an embodiment of the present invention;

[0060] Figure 2 It is a structural diagram of a curved side wall welding device provided by an embodiment of the present invention;

[0061] Figure 3 It is a structural diagram of a curved side wall welding device from the first perspective provided by an embodiment of the present invention;

[0062] Figure 4 It is a combined cross-sectional view of a single-body adjustment mechanism and a support single-body of a curved side wall welding device provided by an embodiment of the present invention;

[0063] Figure 5 It is a structural diagram of a clamping mechanism of a curved side wall welding device provided by an embodiment of the present invention;

[0064] Figure 6 It is Figure 5 The A-A cross-sectional view of;

[0065] Figure 7 It is a cross-sectional view of a plug-in component of a curved side wall welding device provided by an embodiment of the present invention;

[0066] Figure 8 It is a structural diagram of a plug-in component of a curved side wall welding device provided by an embodiment of the present invention;

[0067] Figures 1 to 8 The reference numerals in include:

[0068] 001 - Support platform, 100 - Base, 200 - Support single-body, 210 - Support body, 211 - Top connecting plate, 212 - Bottom connecting plate, 213 - First support column, 220 - Second lead screw, 221 - Clamping part, 300 - Clamping mechanism, 310 - Support, 311 - First guide rail slider, 320 - Plug-in component, 321 - Plug-in support, 322 - Plug-in block, 323 - Second motor, 330 - Lifting mechanism, 331 - Vertical guide rail, 332 - First lead screw, 333 - First motor, 334 - Lifting slide plate, 335 - Second guide rail slider, 336 - First lead screw sleeve, 400 - Limiting device, 410 - Upper limiting plate, 411 - Limiting card slot, 420 - Lower limiting plate, 430 - Second support column, 440 - Limiting spring, 500 - Single-body adjustment mechanism, 510 - Moving bracket, 520 - Adjusting device, 521 - Lifting component, 522 - Screwing component, 523 - Support part, 524 - Third motor, 525 - Lifting plate, 526 - First plug-in part, 527 - Second plug-in part. Detailed implementation manners

[0069] In order to solve the problems in the prior art that the side wall edge arcs of different vehicle models are different, a new clamping device needs to be replaced every time it is used, the device for clamping the side wall of a rail transit vehicle cannot adapt to different side wall curved surfaces, and it consumes a lot of resources and costs to manufacture clamping devices corresponding to different models of rail transit vehicles, and the versatility is poor, the present invention provides a curved side wall welding device and a welding method thereof.

[0070] To further elaborate on the technical means and effects adopted by the present invention to achieve the purpose of the predetermined invention embodiment, the following combines the drawings and preferred embodiments to detail the specific implementation manners, structures, features and effects of the curved side wall welding device and the welding method thereof proposed according to the embodiments of the present invention. In the following description, different "one embodiment" or "embodiment" do not necessarily refer to the same embodiment. In addition, the specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0071] The term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B is specifically understood as: it can include both A and B at the same time, A can exist alone, or B can exist alone, and it can have any of the above three situations.

[0072] The curved side wall welding device and the welding method thereof provided in this embodiment can avoid the need to replace a new clamping device every time due to the different side wall edge arcs of different vehicle models, improve the versatility of the clamping device, make it adapt to different vehicle models and reduce resources and costs, and is convenient to use.

[0073] Embodiment 1

[0074] Figures 1 to 8 This is an embodiment of a curved side wall welding device provided by the present invention.

[0075] As Figures 1 to 8 shown, a curved side wall welding device provided by the present invention is used for positioning during the welding of the side wall of a rail transit vehicle, and includes a plurality of support platforms 001. The support platform 001 includes a base 100, a support unit 200 and a clamping mechanism 300. The support unit 200 is arranged on the base 100. There are a plurality of support units 200, and the plurality of support units 200 are arranged in sequence along the extending direction of the base 100. The height position of the support unit 200 relative to the base 100 is adjustable. The clamping mechanism 300 is movably arranged at both ends of the base 100 and is used for clamping and bending the edge to be bent of the side wall of the rail transit vehicle.

[0076] In a specific implementation, a plurality of support platforms 001 are arranged side by side in sequence along the length direction of the side wall of the rail transit vehicle. The support platform 001 includes a base 100, a support unit 200, and a clamping mechanism 300. A plurality of support units 200 are arranged in sequence along the extending direction of the base 100, and the height position of each support unit 200 relative to the base 100 is adjustable.

[0077] Specifically, for the bending curves of the side walls of different train models, the heights of the multiple support units 200 distributed on the base 100 are adjusted respectively. The top of each support unit 210 can be regarded as a point, and the tops of the multiple support units 210 are regarded as multiple points. The multiple points are fitted to form a support point curve to complete the matching with the bending curve of the train side wall, ensuring that the support platform 001 can adjust different support seats according to the contour radian of the side walls of different rail transit vehicles to support the side walls of different shapes of rail transit vehicles. The clamping mechanism 300 is movably arranged at both ends of the base 100 and is used to clamp and bend the edge to be bent of the side wall of the rail transit vehicle. The movable clamping mechanism 300 placed on the base 100 can adjust the clamping mechanism 300 to fix it according to the arch height of the side walls of different rail transit vehicles and the inclination angles inside both sides of the side wall. The bending radian of the edge to be bent of the side wall of the rail transit vehicle is realized by moving on the base 100, avoiding the situation of replacing a new clamping device every time due to different inclination angles of the side wall edges of different vehicle models, and solving the problems that the device for clamping the side wall of the rail transit vehicle cannot adapt to different side wall curved surfaces, and the resources and costs consumed for manufacturing clamping devices corresponding to different models of rail transit vehicles are large and the versatility is poor.

[0078] As Figures 1 to 8 shown, in a specific implementation, the support platform 001 further includes a limiting device 400, which is placed on the support unit 200 and is used to clamp and fix the support unit 200 and fix the relative position between the support unit 200 and the base 100, so that the tops of the plurality of support units 200 are fixed to form a support combination body matching the side wall curve of the rail transit vehicle.

[0079] Specifically, the limiting device 400 is placed on the support unit 200 and is used to clamp and fix the support unit 200. After the position of the support unit 200 corresponding to the base 100 is adjusted, the limiting device 400 can keep its relative position with the base 100 fixed, avoiding the phenomenon of displacement of the support unit 200 and making the support combination body formed by the plurality of support units 200 and matching the side wall curve of the rail transit vehicle more stable.

[0080] As Figures 1 to 8As shown, in a specific implementation, tracks are provided on both sides of the base 100. The clamping mechanism 300 is disposed at both ends of the base 100 and is movably placed on the tracks. The clamping mechanism 300 can slide towards each other along the tracks.

[0081] Specifically, tracks are provided on both sides of the base 100. The clamping mechanism 300 is placed on the tracks at both ends of the base 100 and can slide towards each other along the tracks, ensuring the flexibility of the position adjustment of the clamping mechanism 300.

[0082] As Figures 1 to 3 shown, in a specific implementation, the clamping mechanism 300 includes a support 310 and a plug-in assembly 320. A first guide rail slider 311 is provided at the bottom of the support 310, and the first guide rail slider 311 is matched with the track. Among them, the opposite surfaces of the supports 310 of the opposite clamping mechanisms 300 are the first side surfaces, and a lifting mechanism 330 is provided on the first side surfaces; the plug-in assembly 320 is placed on the lifting mechanism 330, and the lifting mechanism 330 adjusts the height of the plug-in assembly 320. The plug-in assembly 320 is used for plugging and fixing the edge to be bent of the side wall of the rail transit vehicle.

[0083] Specifically, the clamping mechanism 300 includes a support 310 and a plug-in assembly 320. The first guide rail slider 311 at the bottom of the support 310 is matched with the track, ensuring that the support 310 can slide back and forth on the track. A lifting mechanism 330 is provided on the opposite surfaces of the supports 310 of the opposite clamping mechanisms 300, and the plug-in assembly 320 is placed on the lifting mechanism 330. By lifting the lifting mechanism 330, the height position of the plug-in assembly 320 relative to the base 100 can be realized. The entire clamping mechanism 300 can realize the longitudinal height position adjustment and the lateral distance adjustment relative to both ends of the base 100, so as to be able to adapt to the clamping and edge bending processing of the side walls of various types of rail transit vehicles.

[0084] As Figures 1 to 8 shown, in a specific implementation, the lifting mechanism 330 includes a vertical guide rail 331, a first lead screw 332, a first motor 333, and a lifting slide plate. The vertical guide rail 331 is placed on the first side surface, and there are two vertical guide rails 331 with a gap; the first lead screw 332 is vertically placed between the two vertical guide rails 331; the first motor 333 is placed on the support 310, and the first motor 333 drives the first lead screw 332 to rotate; a second guide rail slider 335 and a first lead screw sleeve 336 are provided on the first side of the lifting slide plate. The second guide rail slider 335 is matched with the vertical guide rail 331, and the first lead screw sleeve 336 is in threaded transmission with the first lead screw 332;

[0085] When the first motor 333 drives the first lead screw 332 to rotate in the first direction, the lifting slide plate ascends; when the first motor 333 drives the first lead screw 332 to rotate in the second direction, the lifting slide plate descends.

[0086] Specifically, the lifting mechanism 330 includes a vertical guide rail 331, a first lead screw 332, a first motor 333, and a lifting slide plate. The first side of the lifting slide plate is movably matched with the vertical guide rail 331 and is in threaded transmission with the first lead screw 332. Through the drive of the first motor 333, the first lead screw 332 can rotate in the first direction and the second direction, thereby driving the lifting slide plate to ascend and descend. Specifically, when the first motor 333 drives the first lead screw 332 to rotate in the first direction, the lifting slide plate ascends; when the first motor 333 drives the first lead screw 332 to rotate in the second direction, the lifting slide plate descends.

[0087] As Figures 1 to 8 shown, in a specific implementation, the plugging component 320 includes a plugging support 321, a plugging block 322, and a second motor 323. The plugging support 321 is placed on the second side of the lifting slide plate. Both ends of the plugging support 321 are provided with support plates, and a mounting shaft is penetratively arranged through the support plates at both ends; the plugging block 322 is placed on the mounting shaft, and the plugging block 322 can rotate around the center of the mounting shaft. The plugging head of the plugging block 322 is inserted into the edge to be bent on the side wall of the rail transit vehicle to be welded; the second motor 323 is placed at one end of the plugging support 321 and is used to drive the plugging block 322 to rotate on the mounting shaft to control the direction of the plugging head of the plugging block 322.

[0088] Specifically, the plugging component 320 includes a plugging support 321, a plugging block 322, and a second motor 323. The plugging support 321 is placed on the second side of the lifting slide plate. The plugging component 320 can adjust its height position relative to the base 100 following the ascent and descent of the lifting slide plate. The plugging block 322 is placed on the mounting shaft and can rotate around the center of the mounting shaft to adjust the orientation angle of the plugging head of the plugging block 322, ensuring that the plugging component 320 can adapt to the edge of the side wall of the rail transit vehicle, thereby better matching and plugging and fixing.

[0089] As Figures 1 to 8As shown, in a specific implementation, the support unit 200 includes a support body 210 and a second lead screw 220. The support body 210 includes a top connection plate 211, a bottom connection plate 212, and two first support columns 213. The two first support columns 213 are respectively connected to both ends of the top connection plate 211 and the bottom connection plate 212, and the first support columns 213 can movably pass through the base 100. The first end of the second lead screw 220 is rotatably connected to the bottom surface of the top connection plate 211, the second end of the second lead screw 220 passes through the bottom connection plate 212, and the second lead screw 220 is in threaded transmission connection with the base 100. By rotating the second lead screw 220, the height position of the support unit 200 is adjusted. Among them, the limiting device 400 is used to detachably clamp the second lead screw 220 and fix the position of the support body 210.

[0090] Specifically, the support unit 200 includes a support body 210 and a second lead screw 220. The second lead screw 220 is in threaded transmission connection with the base 100. By rotating the second lead screw 220, the height position of the support unit 200 is adjusted. Among them, the limiting device 400 is used to detachably clamp the second lead screw 220 and fix the position of the support body 210. On the one hand, due to the transmission of the second lead screw 220, it is ensured that the support body 210 can move up and down relative to the base 100. On the other hand, due to the detachable clamping of the limiting device 400, when the limiting device 400 clamps the second lead screw 220, the position of the support body 210 can be kept fixed relative to the base 100. When the limiting device 400 is separated from the second lead screw 220, the second lead screw 220 can be screwed to drive the support body 210 to move up and down relative to the base 100.

[0091] As Figures 1 to 8 As shown, in a specific implementation, the limiting device 400 includes an upper limiting plate 410, a lower limiting plate, and two second support columns 430. The two second support columns 430 are respectively connected to both ends of the upper limiting plate 410 and the lower limiting plate, and the second support columns 430 can movably pass through the bottom connection plate 212. A limiting card slot 411 is provided on the bottom surface of the upper limiting plate 410 of the limiting device 400, and a clamping member 221 is provided on the second lead screw 220. The clamping member 221 is matched with the limiting card slot 411. Among them, when the limiting card slot 411 is separated from the clamping member 221, the second lead screw 220 can rotate to adjust the height position of the support unit 200. When the limiting card slot 411 is docked with the clamping member 221, the second lead screw 220 is fixed, and the height position of the support unit 200 is fixed.

[0092] Specifically, the limiting device 400 includes an upper limiting plate 410, a lower limiting plate, and a second support column 430. The second support column 430 is movably passed through the bottom connecting plate 212. A limiting slot 411 is provided on the bottom surface of the upper limiting plate 410 of the limiting device 400, and a clamping member 221 is provided on the second lead screw 220. The clamping member 221 is matched with the limiting slot 411, ensuring that the clamping member 221 can engage with the limiting slot 411. More specifically, when the limiting slot 411 is separated from the clamping member 221, the second lead screw 220 can rotate to adjust the height position of the support unit 200, enabling the support unit 200 to adjust its position according to the side wall curvature of the rail vehicle; when the limiting slot 411 is docked with the clamping member 221, the second lead screw 220 is fixed, and the height position of the support unit 200 is fixed. At this time, it is ensured that the support unit 200 is not prone to displacement after matching and supporting the side wall of the rail transit vehicle, making the support combination formed by the support unit 200 more stable.

[0093] As Figures 1 to 8 shown, in a specific implementation, the limiting device 400 further includes a limiting spring 440. The limiting spring 440 is sleeved outside the second support column 430, and the limiting spring 440 is disposed between the bottom connecting plate 212 and the lower limiting plate. Wherein, when the limiting spring 440 is compressed, the distance between the bottom connecting plate 212 and the lower limiting plate decreases, and the limiting device 400 moves upward relative to the support unit 200, and the limiting slot 411 is separated from the clamping member 221 on the second lead screw 220; when the limiting spring 440 resumes its elastic deformation, the distance between the bottom connecting plate 212 and the lower limiting plate increases, and the limiting device 400 moves downward relative to the support unit 200, and the limiting slot 411 is engaged with the clamping member 221 on the second lead screw 220.

[0094] Specifically, the limiting spring 440 is disposed between the bottom connecting plate 212 and the lower limiting plate, and its main function is to ensure that the limiting device 400 can clamp the clamping member 221 on the second lead screw 220 more tightly, thereby ensuring that the support unit 200 will not loosen after being fixed.

[0095] As Figures 1 to 8As shown, in a specific implementation, the support platform 001 further includes a single-unit adjustment mechanism 500. The single-unit adjustment mechanism 500 is movably disposed on the track of the base 100 and is used to adjust the height of the support unit 200. It includes a moving bracket 510 and an adjustment device 520. The moving bracket 510 is slidably hung on the two side tracks. The adjustment device 520 is disposed on the moving bracket 510 and is used to adjust the up and down position of the support unit 200. The adjustment device 520 includes a lifting assembly 521, a screwing assembly 522, a support member 523, and a third motor 524. The lifting assembly 521 is provided with a lifting mechanism 330 and a lifting plate 525. The lifting mechanism 330 drives the lifting plate 525 to rise or fall. The screwing assembly 522 is placed on the lifting plate 525. The screwing end of the screwing assembly 522 is placed on the upper surface of the lifting plate 525. The screwing end is provided with a first insertion portion 526. The second end of the second lead screw 220 is provided with a second insertion portion 527. The first insertion portion 526 and the second insertion portion 527 are detachably docked. The support member 523 is placed on the upper surface of the lifting plate 525 and includes a first support member 523 and a second support member 523. The first support member 523 and the second support member 523 are placed on both sides of the screwing end. The third motor 524 drives the screwing assembly 522 to rotate.

[0096] Specifically, the support platform 001 further includes a single-unit adjustment mechanism 500. The single-unit adjustment mechanism 500 can move on the track of the base 100 and adjust the height of the support unit 200. The single-unit adjustment mechanism 500 is further provided with an adjustment device 520 for adjusting the up and down position of the support unit 200. The lifting mechanism 330 of the adjustment device 520 drives the lifting plate 525 to rise or fall, ensuring that the screwing component on the lifting plate 525 can be aligned or separated from the second end of the second lead screw 220. Then, driven by the third motor 524, the screwing assembly 522 is driven to rotate, thereby driving the second lead screw 220 to rotate and realizing the height change of the support unit 200.

[0097] As Figures 1 to As shown, in a specific implementation, when the lifting mechanism 330 drives the lifting plate 525 to move upward, the first insertion portion 526 of the screwing assembly 522 is docked with the second insertion portion 527 of the second lead screw 220. The lower limit plate is pushed upward by the first support member 523 and the second support member 523. The limit card slot 411 is separated from the card member 221 on the second lead screw 220. The screwing assembly 522 screws the lead screw to adjust the support body 210 to a preset position.

[0098] When the lifting mechanism 330 drives the lifting plate 525 to move downward, the first insertion part 526 of the screwing component 522 is separated from the second insertion part 527 of the second lead screw 220, the lower limit plate is separated from the first support member 523 and the second support member 523, the limiting device 400 moves downward under the action of the limiting spring 440, the limiting card slot 411 is engaged with the card member 221 on the second lead screw 220, and the second lead screw 220 fixes the support body 210 to a preset position.

[0099] Specifically, the lifting mechanism 330 drives the lifting plate 525 to move up and down, thereby separating or docking the first insertion part 526 and the second insertion part 527. At the same time, the lifting mechanism 330 drives the lifting plate 525 to move up and down, which also causes the lower limit plate to be separated from or aligned with the first support member 523 and the second support member 523, thereby resulting in the engagement or separation of the card slot and the card member 221. Only with the cooperation of each part of the lifting assembly 521, the screwing component 522, the support member 523, the third motor 524, and the support unit 200 can the support unit 200 adjust the combined support body 210 that fits the side wall of the rail transit vehicle, ensuring the stability of the side wall of the rail transit vehicle during the welding process.

[0100] Embodiment Two

[0101] An embodiment of a method for side wall welding provided by the present invention.

[0102] A method for side wall welding of a rail transit vehicle using a curved side wall welding device provided by the present invention, the method comprising:

[0103] Sequentially splicing at least two splicing side plates to be welded to form a side wall to be welded;

[0104] Placing the side wall to be welded on a plurality of support platforms arranged and placed;

[0105] Adjusting the height of the support unit so that the tops of the plurality of support units match the side wall curve of the rail transit vehicle to be welded;

[0106] The clamping mechanism adjusts the height position of the plugging component and the angle of the plugging block, and inserts the plugging head of the plugging block into the edge to be bent of the side wall to be welded;

[0107] The clamping mechanism slides on the slide rail of the base, adjusts the position of the clamping mechanism on the base, and bends the edge to be bent of the side wall to be welded;

[0108] Press the surface of the side wall of the rail transit vehicle to be welded and perform welding operations.

[0109] In a specific implementation, a method for welding the side wall of a rail transit vehicle using a curved side wall welding device, the method comprising:

[0110] Sequentially splicing at least two splicing side plates to be welded to form a side wall to be welded;

[0111] Placing the side wall to be welded on a number of support platforms that have been arranged and placed, the number of support platforms being at least 12;

[0112] The supports on each support platform sequentially adjust their height positions relative to the base, so that the tops of the several support units match the side wall curve of the rail transit vehicle to be welded;

[0113] The clamping mechanism on each support platform adjusts the height position of the plug-in assembly and the angle of the plug-in block, and inserts the plug joint of the plug-in block into the edge to be bent of the side wall to be welded;

[0114] The clamping mechanism on each support platform slides on the slide rail of the base, adjusts the position of the clamping mechanism on the base, and bends the edge to be bent of the side wall to be welded to make it reach a preset edge curvature;

[0115] Press the surface of the side wall of the rail transit vehicle to be welded and perform welding operations.

[0116] Specifically, the supports on each support platform sequentially adjust their height positions relative to the base, so that the tops of the several support units match the side wall curve of the rail transit vehicle to be welded, ensuring that the support platform can adjust different support seats according to the contour curvature of the side walls of different rail transit vehicles to support the side walls of different shapes of rail transit vehicles; the clamping mechanism on each support platform adjusts the height position of the plug-in assembly and the angle of the plug-in block, inserts the plug joint of the plug-in block into the edge to be bent of the side wall to be welded, and the clamping mechanism slides on the track of the base to adjust the position of the clamping mechanism on the base, bending the edge to be bent of the side wall to be welded to make it reach a preset edge curvature, avoiding the situation of having to replace the clamping device every time due to different inclination angles of the side wall edges of different vehicle models, solving the problem that the device for clamping the side wall of a rail transit vehicle cannot adapt to different side wall curved surfaces, as well as the problems of consuming more resources and costs for manufacturing clamping devices corresponding to different models of rail transit vehicles and poor versatility.

[0117] Specifically, the curved side wall welding device described in the second embodiment can directly adopt the curved side wall welding device provided in the first embodiment. For the specific implementation structure, reference can be made to the relevant content described in the first embodiment, which will not be elaborated here.

[0118] In the above embodiments, the descriptions of the various embodiments each have their own focuses. For parts not detailed in a certain embodiment, reference may be made to the relevant descriptions of other embodiments.

[0119] It can be understood that the relevant features in the above devices can be referred to each other. In addition, the "first", "second", etc. in the above embodiments are used to distinguish the various embodiments, and do not represent the advantages or disadvantages of the various embodiments.

[0120] In the specification provided herein, a large number of specific details are set forth. However, it can be understood that the embodiments of the present invention may be practiced without these specific details. In some instances, well-known structures and technologies have not been shown in detail so as not to obscure the understanding of this specification.

[0121] Similarly, it should be understood that, in order to streamline this disclosure and assist in understanding one or more of the various inventive aspects, in the above description of the exemplary embodiments of the present invention, the various features of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. However, the disclosed apparatus should not be construed as reflecting the intention that the claimed invention requires more features than are expressly recited in each claim. Rather, as reflected in the following claims, the inventive aspects lie in less than all the features of the single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of the present invention.

[0122] Those skilled in the art can understand that the components in the devices of the embodiments can be adaptively changed and arranged in one or more devices different from that of the embodiment. The components in the embodiment can be combined into one component, and in addition, they can be divided into multiple sub-components. Except that at least some of such features are mutually exclusive, any combination can be adopted for all the features disclosed in this specification (including the accompanying claims, abstract, and drawings) and all the components of any device so disclosed. Unless otherwise expressly stated, each feature disclosed in this specification (including the accompanying claims, abstract, and drawings) can be replaced by an alternative feature providing the same, equivalent, or similar purpose.

[0123] In addition, those skilled in the art can understand that although some of the embodiments described herein include certain features included in other embodiments rather than other features, the combination of the features of different embodiments means that it is within the scope of the present invention and forms different embodiments. For example, in the following claims, any one of the claimed embodiments can be used in any combination. The various component embodiments of the present invention can be implemented in hardware or in combinations thereof.

[0124] It should be noted that the above embodiments are illustrative of the present invention rather than restrictive of the present invention, and those skilled in the art can design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in the claim. The word "a" or "an" preceding an element or component does not exclude the presence of a plurality of such elements or components. The present invention can be implemented by means of a device including several different elements. In a claim listing several elements, several of these elements may be embodied by the same item of element. The use of the words first, second, and third, etc. does not denote any order. These words may be interpreted as names.

[0125] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A curved sidewall welding device for positioning during the welding of the sidewalls of rail transit vehicles, comprising a plurality of support platforms, characterized in that, The support table includes: A base; Support units, which are arranged on the base. There are several support units, and the several support units are arranged in sequence along the extension direction of the base. The height position of the support units relative to the base is adjustable; A clamping mechanism, which is movably arranged at both ends of the base and is used for clamping and bending the edge to be bent of the side wall of the rail transit vehicle; Tracks are arranged on both sides of the base; The clamping mechanism is arranged at both ends of the base and is movably placed on the tracks. The clamping mechanism can slide towards each other along the tracks. The clamping mechanism includes: A support, with a first guide rail slider arranged at the bottom of the support. The first guide rail slider matches the track. Among them, the opposite surfaces of the supports of the opposite clamping mechanisms are the first side surfaces, and a lifting mechanism is arranged on the first side surfaces; The lifting mechanism includes: Vertical guide rails, which are placed on the first side surfaces. There are two vertical guide rails and they have a spacing; A first lead screw, which is vertically arranged between the two vertical guide rails; A first motor, which is placed on the support. The first motor drives the first lead screw to rotate. Among them, A lifting slide plate, with a second guide rail slider and a first lead screw sleeve arranged on the first side of the lifting slide plate. The second guide rail slider matches the vertical guide rail, and the first lead screw sleeve is in threaded transmission with the first lead screw; When the first motor drives the first lead screw to rotate in the first direction, the lifting slide plate rises; When the first motor drives the first lead screw to rotate in the second direction, the lifting slide plate descends; The support unit includes: A support body, which includes a top connection plate, a bottom connection plate and two first support columns. The two first support columns are respectively connected to both ends of the top connection plate and the bottom connection plate. The first support columns can movably pass through the base; A second lead screw, the first end of which is rotatably connected to the bottom surface of the top connection plate. The second end of the second lead screw passes through the bottom connection plate. The second lead screw is in threaded transmission connection with the base. By rotating the second lead screw, the height position of the support unit is adjusted; A plug-in component, which is placed in the lifting mechanism. The lifting mechanism adjusts the height of the plug-in component. The plug-in component is used for plugging and fixing the edge to be bent of the side wall of the rail transit vehicle.

2. The curved side wall welding device according to claim 1, wherein The support table further includes: A limiting device, which is placed in the support unit and is used for clamping the support unit and fixing the relative position between the support unit and the base, so that the tops of the several support units are fixed to form a support combination body matching the side wall curve of the rail transit vehicle. The limiting device is also used for separably clamping the second lead screw.

3. The curved side wall welding device according to claim 2, wherein The plug-in component includes: A plug-in support, which is placed on the second side of the lifting slide plate. Support plates are arranged at both ends of the plug-in support, and mounting shafts are arranged through both ends of the support plates; A plug-in block, which is placed on the mounting shaft. The plug-in block can rotate around the center of the mounting shaft. The plug-in head of the plug-in block is inserted into the edge to be bent of the side wall of the rail transit vehicle to be welded. A second motor is disposed at one end of the plugging support and is used to drive the plugging block to rotate on the mounting shaft so as to control the direction of the plug connector of the plugging block.

4. The curved side wall welding device according to claim 3, wherein the limiting device includes an upper limiting plate, a lower limiting plate and two second support columns. The two second support columns are respectively connected to two ends of the upper limiting plate and the lower limiting plate, and the second support columns movably pass through the bottom connecting plate; a limiting card slot is disposed on the bottom surface of the upper limiting plate of the limiting device, a clamping member is disposed on the second lead screw, and the clamping member is matched with the limiting card slot. Wherein, when the limiting card slot is separated from the clamping member, the second lead screw can rotate to adjust the height position of the support unit; when the limiting card slot is docked with the clamping member, the second lead screw is fixed and the height position of the support unit is fixed.

5. The curved side wall welding device according to claim 4, wherein the limiting device further includes a limiting spring. The limiting spring is sleeved outside the second support column and is disposed between the bottom connecting plate and the lower limiting plate. Wherein, when the limiting spring is compressed, the distance between the bottom connecting plate and the lower limiting plate is reduced, the limiting device moves upward relative to the support unit, and the limiting card slot is separated from the clamping member on the second lead screw; when the limiting spring resumes elastic deformation, the distance between the bottom connecting plate and the lower limiting plate increases, the limiting device moves downward relative to the support unit, and the limiting card slot is engaged with the clamping member on the second lead screw.

6. The curved side wall welding device according to claim 5, characterized in that, The support platform further includes: a monomer adjusting mechanism movably disposed on the track of the base and used to adjust the height of the support unit, including: a moving bracket slidably hung on the two tracks on both sides; an adjusting device disposed on the moving bracket and used to adjust the up and down position of the support unit, including: a lifting assembly provided with a lifting mechanism and a lifting plate, and the lifting mechanism drives the lifting plate to rise or fall; a screwing assembly disposed on the lifting plate, a screwing end of the screwing assembly is disposed on the upper surface of the lifting plate, a first plugging portion is disposed at the screwing end, a second plugging portion is disposed at the second end of the second lead screw, and the first plugging portion and the second plugging portion are detachably docked; a support member disposed on the upper surface of the lifting plate, including a first support member and a second support member, and the first support member and the second support member are disposed on both sides of the screwing end; a third motor driving the screwing assembly to rotate; when the lifting mechanism drives the lifting plate to move upward, the first plugging portion of the screwing assembly is docked with the second plugging portion of the second lead screw, the lower limiting plate is pushed upward by the first support member and the second support member, the limiting card slot is separated from the clamping member on the second lead screw, and the screwing assembly screws the lead screw to adjust the support body to a preset position; When the lifting mechanism drives the lifting plate to move downward, the first insertion part of the screwing component is separated from the second insertion part of the second lead screw, the lower limit plate is separated from the first support member and the second support member, the limiting device moves downward under the action of the limiting spring, the limiting card slot is engaged with the card on the second lead screw, and the second lead screw fixes the support body to a preset position.

7. A method for welding the side wall of a rail transit vehicle using the curved side wall welding device described in claim 6 above, characterized in that, The method includes: Sequentially splicing at least two splicing side plates to be welded to form a side wall to be welded; Placing the side wall to be welded on a plurality of support platforms arranged and placed; Adjusting the height of the support monomers so that the tops of the plurality of support monomers match the curve of the side wall to be welded; The clamping mechanism adjusts the height position of the plugging component and the angle of the plugging block, and inserts the plugging head of the plugging block into the edge to be bent of the side wall to be welded; The clamping mechanism slides on the slide rail of the base, adjusts the position of the clamping mechanism on the base, and bends the edge to be bent of the side wall to be welded; Press the surface of the side wall to be welded and perform welding operations.

Images