Steel plate butt welding equipment

Abstract

The present invention discloses a steel plate butt welding device, including a workbench and a welding device. The welding device includes a first base, an end clamping body, a second base, a moving mechanism, a welding machine and a movable clamping body. When the welding machine moves, it drives the movable clamping body to move and clamp the first steel plate and the second steel plate, and presses the welding pad against the weld at the bottom of the first steel plate and the second steel plate; the first welding head is arranged above the weld to weld the weld, and the second welding head is arranged on the inner side of the weld to weld the welding pad and the weld. The present invention relates to the technical field of mechanical welding equipment. By adopting an end clamping body and a movable clamping body for double-point clamping, the design of the auxiliary extension section cooperates with the double-point clamping so that the welding gun can cover the entire weld area, thereby realizing the one-time completion of the welding of the entire weld. The design of the first welding head and the second welding head can perform synchronous welding on the top and bottom of the weld.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical welding equipment, in particular to a steel plate butt welding equipment. Background Art

[0002] In modern industrial production, steel plate butt welding is a common process, especially in the fields of shipbuilding, pressure vessel manufacturing, bridge construction, etc. Traditional steel plate butt welding equipment usually uses a movable clamp to fix the steel plate to be welded to ensure the stability of the welding process and the quality of the weld. However, the existing steel plate butt welding equipment has some obvious limitations and shortcomings.

[0003] First, due to the presence of movable fixtures, these devices often cannot complete the welding of the entire weld in one go. This is because the fixture may hinder the movement of the welding gun, resulting in part of the weld area not being covered, and secondary welding is required to fill these unwelded parts. This not only increases the complexity and time cost of the operation, but may also affect the overall quality and strength of the welded joint.

[0004] Secondly, conventional steel plate butt welding equipment can usually only perform one-time welding from the top. When a welding pad needs to be added to the bottom of the steel plate to enhance the structural strength, these equipment cannot complete the butt welding of two steel plates and the welding with the pad at one time. This requires the operator to weld the steel plate and the pad separately, further increasing the difficulty and time consumption of the operation.

[0005] In addition, existing welding equipment often lacks adequate support and positioning mechanisms when handling large or heavy steel plates, which may cause the steel plates to shift or deform during welding, affecting welding accuracy and efficiency. Moreover, the heat generated during welding may cause the local temperature of the steel plate to be too high, thus affecting the mechanical properties of the material and the welding quality. Summary of the invention

[0006] In view of the deficiencies of the prior art, the present invention provides a steel plate butt welding device, which solves the problem of the prior art butt welding device requiring secondary welding.

[0007] To achieve the above object, the present invention is implemented through the following technical scheme: a steel plate butt welding device, comprising:

[0008] A workbench, the workbench comprising a first workbench and a second workbench arranged opposite to each other, a first steel plate and a second steel plate being placed on the first workbench and the second workbench respectively;

[0009] Welding device, comprising:

[0010] A first base, fixed to one end of the first workbench;

[0011] An end clamp body connected to one side of the first pedestal and suspended above the weld between the first steel plate and the second steel plate;

[0012] A second base, fixed to the other end of the first workbench;

[0013] A moving mechanism is arranged on the first pedestal and the second pedestal, is arranged along the length direction of the weld between the first steel plate and the second steel plate, and is suspended above the first workbench;

[0014] A welding machine is arranged on the moving mechanism; the welding machine has a first welding head and a second welding head;

[0015] A movable clamp body is connected to the welding machine and suspended at the weld; the first welding head is arranged on the top of the movable clamp body, and the second welding head is arranged on the bottom of the movable clamp body;

[0016] A welding backing plate, one end of which is welded to the first steel plate and the second steel plate and is arranged at the bottom of the weld;

[0017] Wherein, when the welding machine moves, it drives the movable clamp to move and clamp the first steel plate and the second steel plate, and presses the welding pad against the weld at the bottom of the first steel plate and the second steel plate; the first welding head is arranged above the weld to weld the weld, and the second welding head is arranged inside the weld to weld the welding pad and the weld.

[0018] Preferably, the end clamp specifically comprises:

[0019] A first fixture plate, fixedly connected to the first pedestal;

[0020] There are two first pressing cylinders, which are respectively fixed on both sides of the first fixture plate, and the output ends of the two first pressing cylinders pass through the first fixture plate;

[0021] There are two pressing plates, which are respectively fixed on the output ends of the two first pressing cylinders; when the first pressing cylinders are working downward, the two pressing plates are driven to be pressed on the first steel plate and the second steel plate respectively.

[0022] Preferably, the moving mechanism comprises:

[0023] A slide box, fixed on the first pedestal;

[0024] A lead screw is rotatably connected between the slide box and the second pedestal and is rotatably connected to the bottom of the welding machine;

[0025] A motor, fixed on the slide box, drives the lead screw to rotate;

[0026] A light bar, fixedly connected between the slide box and the second pedestal, and slidably connected to the bottom of the welding machine;

[0027] The universal wheel is fixed on the bottom of the welding machine.

[0028] Preferably, the second pedestal extends outward to form an extension section; when the welding machine moves along the lead screw and the light rod to the position of the extension section, the first welding head and the second welding head complete the welding of the weld and the welding pad.

[0029] Preferably, the movable clamp specifically comprises:

[0030] A second fixture plate, fixedly connected to the welding machine and located above the weld;

[0031] A bottom plate member, located below the weld and fixedly connected to the second fixture plate via a vertical plate;

[0032] A first pressure member is disposed on the second fixture plate and contacts the upper surfaces of the first steel plate and the second steel plate;

[0033] A second pressure member, disposed on the bottom plate and in contact with the lower surfaces of the first steel plate and the second steel plate;

[0034] A third pressure member is disposed on the second pressure member and abuts against the bottom surface of the welding pad, so that the welding pad is pressed against the weld at the bottom of the first steel plate and the second steel plate;

[0035] The first welding head is hinged to the second fixture plate through a pull rod, a push-pull cylinder is also hinged to the top of the second fixture plate, and the output end of the push-pull cylinder is hinged to the pull rod.

[0036] Preferably, the first pressure member comprises:

[0037] There are two second pressing cylinders, which are respectively fixed on both sides of the second fixture plate, and the output ends of the two second pressing cylinders pass through the first fixture plate;

[0038] There are two first rollers, which are respectively fixed on the output ends of the two second pressing cylinders; when the second pressing cylinders are pressed downward, the two first rollers are driven to be pressed onto the upper surfaces of the first steel plate and the second steel plate respectively.

[0039] Preferably, the second pressure member comprises:

[0040] Fork plates are formed on both sides of the front end of the bottom plate, and groove cavities are formed inside the two fork plates;

[0041] A rotating roller, rotatably connected to the fork plate, with both ends extending out of the fork plate;

[0042] The second rollers are fixed at two ends of the rotating roller extending out of the fork plate and are in contact with the lower surfaces of the first steel plate and the second steel plate.

[0043] Preferably, the third pressure member comprises a wrapping roller, which is sleeved on the outer wall surface of the rotating roller;

[0044] When the welding backing plate passes through the groove cavity, it is pressed against the bottom of the weld by the wrapping roller.

[0045] Preferably, the surfaces of the first workbench and the second workbench are rotatably connected with support rollers, and the support rollers include a plurality of driven rollers and a positioning roller group.

[0046] Preferably, the positioning roller group includes:

[0047] A plurality of spindles with hollow cavities, one end of each spindle is connected to a vacuum generator, and the other end is provided with a plug; an inner opening is provided on the outer wall of the spindle; the outer side of the spindle is rotatably connected to a rotating wheel ring through a rotating member, and the rotating wheel ring protrudes from the upper surfaces of the first workbench and the second workbench;

[0048] A filling sleeve is fixedly sleeved on the outer side of the main shaft and located on the inner side of the rotating member; a through hole is opened on the filling sleeve, and the through hole is connected with the inner opening to form a gas passage;

[0049] A number of suction cups are fixed on the rotating wheel ring;

[0050] Wherein, when the rotating wheel ring rotates on the main shaft, the suction cup located at the top is connected with the gas channel and the hollow cavity of the main shaft.

[0051] Beneficial effects of the present invention: By using a steel plate butt welding device provided by the present invention, the following technical effects are achieved compared with the prior art:

[0052] First, by using an end clamp and a movable clamp for double-point clamping, the equipment can effectively fix the steel plate to be welded and ensure stability during the welding process. The design of the auxiliary extension section and the double-point clamping enable the welding gun to cover the entire weld area, so that the entire weld can be welded in one go without the need for secondary welding. This not only improves welding efficiency, but also ensures the overall quality and consistency of the weld.

[0053] Secondly, the design of the first welding head and the second welding head, combined with the application of the auxiliary groove cavity and the wrapping roller, can simultaneously weld the top and bottom of the weld. This design not only realizes the one-time welding of the welding pad and the two steel plates, but also improves the uniformity and reliability of welding. In particular, the second welding head preheats the welding point of the first welding head at the weld, and the first welding head performs repair welding on the bottom of the weld. The two work together to further optimize the welding process and improve the welding quality.

[0054] In addition, in terms of the movement and conveying of steel plates, through the auxiliary movement of the driven roller and the positioning roller group, and the continuous adsorption and fixing effect of the suction cup arranged on the positioning roller group, the stable positioning of the steel plate in the rotating conveying state is achieved, and the continuous adsorption and fixing of the conveying parts in the rotating conveying state are achieved, thereby improving the accuracy and efficiency of steel plate docking.

[0055] In summary, the steel plate butt welding equipment of the present invention overcomes many deficiencies of the prior art through its unique design and functions, and provides an efficient, high-quality and reliable solution for steel plate butt welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0057] Figure 2 This is a front view of the movable clamp of the present invention;

[0058] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable clamp of the present invention;

[0059] Figure 4 This is a schematic diagram of a three-dimensional exploded structure of the movable clamp of the present invention;

[0060] Figure 5 This is a schematic diagram of the welding structure of the welding backing plate, the first steel plate and the second steel plate of the present invention;

[0061] Figure 6 It is a schematic diagram of the structure of the mobile mechanism of the present invention;

[0062] Figure 7 This is a front view of the positioning assembly of the present invention;

[0063] Figure 8 It is the left view of the positioning assembly of the present invention.

[0064] Description of reference numerals in the figures

[0065] 1. First workbench, 2. Second workbench, 3. First pedestal, 4. Moving mechanism, 41. Motor, 42. Light bar, 43. Lead screw, 44. Universal wheel, 45. Slide box, 5. Second pedestal, 51. Extension section, 6. Welding machine, 61. First welding head, 62. Second welding head, 7. Pressing plate, 8. First fixture plate, 9. First pressing cylinder, 10. Movable fixture body, 101. Second fixture plate, 102. Second pressing cylinder, 103. First roller, 104. Vertical plate, 105 , bottom plate, 106, fork plate, 107, wrapping roller, 108, rotating roller, 109, second roller, 110, push-pull cylinder, 111, pull rod, 112, groove cavity, 11, vacuum generator, 12, sealing, 13, driven roller, 14, positioning roller group, 141, inner opening, 142, rotating wheel ring, 143, through hole, 144, filling sleeve, 145, suction cup, 146, main shaft, 147, rotating part, 15, first steel plate, 16, second steel plate, 17, welding pad. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. As long as the effects of the present invention can be exerted, various changes can be made to the implementation scheme.

[0067] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0068] Reference Figure 1-8 A steel plate butt welding apparatus according to the present embodiment will be described.

[0069] like Figure 1 As shown, the equipment includes a workbench, and the workbench includes a first workbench 1 and a second workbench 2 that are arranged opposite to each other. A first steel plate 15 and a second steel plate 16 to be welded are placed on the first workbench 1 and the second workbench 2 respectively.

[0070] like Figure 1As shown, the surfaces of the first workbench 1 and the second workbench 2 are rotatably connected with support rollers. The support rollers are provided to assist the first steel plate 15 and the second steel plate 16 to move on the surfaces of the first workbench 1 and the second workbench 2, thereby reducing the friction resistance of the first steel plate 15 and the second steel plate 16 when they move, so that the steel plates can be smoothly and easily moved to the appropriate positions for docking. The support rollers include a plurality of driven rollers 13 and a positioning roller group 14. The driven rollers 13 and the upper top surfaces of the positioning roller group 14 are in the same horizontal plane, ensuring that the first steel plate 15 and the second steel plate 16 can easily push or pull the steel plates to move horizontally and perform translation docking, thereby facilitating accurate docking. Once the steel plates reach the correct position, the welding process can begin.

[0071] like Figure 7 and Figure 8As shown, the positioning roller assembly 14 includes a plurality of main shafts 146 with hollow cavities and a plurality of suction cups 145. The outer side of the main shaft 146 is rotatably connected to the rotating wheel ring 142 through a rotating member 147. The rotating member 147 is a bearing to reduce friction during rotation and ensure the smoothness of rotation. The rotating wheel ring 142 protrudes from the upper surface of the first workbench 1 and the second workbench 2, so that the rotating wheel ring 142 can approach the first steel plate 15 and the second steel plate 16, thereby effectively ensuring that the suction cups 145 adsorb and position the steel plates. One end of each main shaft 146 is connected to the vacuum generator 11 through a pipeline, and the other end is provided with a plug 12 to prevent air leakage. The vacuum generator 11 generates negative pressure when it works, which acts on the hollow cavity inside each main shaft 146; the outer wall of the main shaft 146 is provided with an inner opening 141; a filling sleeve 144 is sleeved on the outer side of the main shaft 146 and is located on the inner side of the rotating member 147; a through hole 143 is provided on the filling sleeve 144, and the through hole 143 is connected with the inner opening 141 to form a gas channel; a plurality of suction cups 145 are fixed on the rotating ring 142; when the rotating ring 142 rotates through the rotating member 147, each suction cup 145 is connected with the gas channel in turn, and the suction cup 145 that is not connected with the gas channel is blocked by the filling sleeve 144. Among them, when the rotating wheel ring 142 rotates on the main shaft 146, the suction cup 145 located at the top is connected with the gas channel and the hollow cavity of the main shaft 146, and the other suction cups 145 are blocked by the filling sleeve 144. The negative pressure suction force will not act on other suction cups 145. Therefore, only the suction cup 145 located at the top will generate adsorption force, adsorbed on the bottom surface of the first steel plate 15 and the second steel plate 16, so that the first steel plate 15 and the second steel plate 16 can be adsorbed and positioned during the movement to prevent displacement. As the rotating wheel ring 142 continues to rotate, when the rotating wheel ring 142 located at the top rotates and deviates from the top position, the suction cup 145 deviates from the gas channel. At this time, the adsorption force decreases until it disappears, and the suction cup 145 is separated from the first steel plate 15 and the second steel plate 16. When the subsequent suction cup 145 rotates to the top, it is reconnected with the gas channel and adsorbs the first steel plate 15 and the second steel plate 16 again. At the same time, after the first steel plate 15 and the second steel plate 16 are transported to the predetermined position, they can also be positioned by suction through the suction cup 145. The positioning roller group 14 realizes continuous suction and fixation in the rotating conveying state, thereby improving the accuracy and efficiency of the steel plate docking.

[0072] like Figure 1 and Figure 2As shown, the equipment also includes a welding pad 17 and a welding device, and the welding device includes a first pedestal 3, an end clamp body, a second pedestal 5, a moving mechanism 4, a welding machine 6 and a movable clamp body 10. One end of the welding pad 17 is welded to the first steel plate 15 and the second steel plate 16, and is arranged at the bottom of the weld; it should be noted that when the welding pad 17 welds the weld of the first steel plate 15 and the second steel plate 16 during the movement of the welding machine 6, it is synchronously welded to the bottom of the first steel plate 15 and the second steel plate 16.

[0073] like Figure 1 As shown, the first pedestal 3 is fixed at one end of the first workbench 1, and the second pedestal 5 is fixed at the other end of the first workbench 1, and the two are arranged oppositely. The moving mechanism 4 is arranged on the first pedestal 3 and the second pedestal 5, and the setting direction is arranged along the length direction of the weld between the first steel plate 15 and the second steel plate 16, and is suspended above the first workbench 1; the welding machine 6 is arranged on the moving mechanism 4, and the welding machine 6 has a first welding head 61 and a second welding head 62, the first welding head 61 is arranged at the top of the movable clamp body 10, and the second welding head 62 is arranged at the bottom of the movable clamp body 10; when working, the moving mechanism 4 drives the welding machine 6 to move along the length direction of the weld, and the weld is welded by the first welding head 61 and the second welding head 62 when moving. It should be noted that the second welding head 62 welds the bottom of the weld, mainly welding and fixing the welding pad 17 below the weld. The first welding head 61 welds the top of the weld, and welds the first steel plate 15 and the second steel plate 16. In addition, the second welding head 62 also serves to preheat the welding point of the first welding head 61 at the weld, and the first welding head 61 also serves to repair the bottom of the weld. The two cooperate with each other to complete the welding of the welding pad 17 with the first steel plate 15 and the second steel plate 16.

[0074] like Figure 1 As shown, the end clamp is connected to one side of the first pedestal 3 and is suspended above the weld between the first steel plate 15 and the second steel plate 16; the movable clamp 10 is connected to the welding machine 6 and is suspended at the weld; in this embodiment, since the positioning roller group 14 is provided to adsorb and fix the first steel plate 15 and the second steel plate 16, only one set of end clamps is used for clamping and fixing at the weld, which is used to prevent the first steel plate 15 and the second steel plate 16 from shifting and causing the weld width to change after the weld width is positioned. The movable clamp 10 cooperates with the end clamp during the movement to form two-point relative positioning of the weld.

[0075] When the welding machine 6 moves, the movable clamp body 10 is driven to move and clamp the first steel plate 15 and the second steel plate 16, and the welding pad 17 is pressed against the weld at the bottom of the first steel plate 15 and the second steel plate 16; the first welding head 61 is arranged above the weld to weld the weld, and the first welding head 61 is hinged to the second fixture plate 101 through the pull rod 111, and the top of the second fixture plate 101 is also hinged with a push-pull cylinder 110, and the output end of the push-pull cylinder 110 is hinged to the pull rod 111. The push-pull cylinder 110 is an electric telescopic rod or a hydraulic telescopic rod. By adjusting the telescopic degree, the pull rod 111 rises or falls, and the height position of the first welding head 61 is changed, so that it is convenient to weld the weld. The second welding head 62 is arranged on the inner side of the weld to weld the welding pad 17 and the weld.

[0076] like Figure 1 As shown, the end clamp specifically includes a first clamp plate 8, a first pressing cylinder 9 and a pressing plate 7. The first pressing cylinder 9 is preferably a cylinder, and may also be an electric telescopic rod or a hydraulic telescopic rod. The first clamp plate 8 is fixedly connected to the first pedestal 3; there are two first pressing cylinders 9, which are respectively fixed on both sides of the first clamp plate 8, and the output ends of the two first pressing cylinders 9 pass through the first clamp plate 8; there are two pressing plates 7, which are respectively fixed on the output ends of the two first pressing cylinders 9; when the first pressing cylinder 9 is pressed downward, it drives the two pressing plates 7 to be pressed on the first steel plate 15 and the second steel plate 16 respectively, forming a pressed and fixed first steel plate 15 and second steel plate 16.

[0077] like Figure 1 and Figure 6 As shown, the moving mechanism 4 includes a motor 41, a light bar 42, a lead screw 43, a universal wheel 44 and a slide box 45. The slide box 45 is fixed on the first pedestal 3; the lead screw 43 is rotatably connected between the slide box 45 and the second pedestal 5, and is rotatably connected to the bottom of the welding machine 6; the motor 41 is fixed on the slide box 45, driving the lead screw 43 to rotate; the light bar 42 is fixedly connected between the slide box 45 and the second pedestal 5, and is slidably connected to the bottom of the welding machine 6; the universal wheel 44 is fixed to the bottom of the welding machine 6. When the motor 41 works, the lead screw 43 rotates, and when the lead screw 43 rotates, the welding machine 6 is driven to translate on the light bar 42. When the welding machine 6 moves, the universal wheel 44 at the bottom is pressed on the first steel plate 15, forming a pressed fixation of the first steel plate 15.

[0078] like Figure 1 As shown, the second pedestal 5 extends outward to form an extension section 51; when the welding machine 6 moves along the lead screw 43 and the optical rod 42 to the position of the extension section 51, the first welding head 61 and the second welding head 62 are separated from the weld, completing the welding of the weld and the welding pad 17.

[0079] like Figure 2 , Figure 3 and Figure 4As shown, the movable clamp body 10 includes a second clamp plate 101, a bottom plate 105, a first pressure member, a second pressure member and a third pressure member. The second clamp plate 101 is fixedly connected to the welding machine 6 and is located above the weld; the bottom plate 105 is located below the weld and is fixedly connected to the second clamp plate 101 through a vertical plate 104. The width of the vertical plate 104 is smaller than the width of the weld. When the movable clamp body 10 moves, the vertical plate 104 does not contact the edge portions of the first steel plate 15 and the second steel plate 16 to prevent the first steel plate 15 and the second steel plate 16 from being offset due to contact.

[0080] like Figure 2 , Figure 3 and Figure 4 As shown, the first pressure member is arranged on the second clamp plate 101 and contacts the upper surfaces of the first steel plate 15 and the second steel plate 16. The first pressure member includes a second pressing cylinder 102 and a first roller 103. There are two second pressing cylinders 102, which are respectively fixed on both sides of the second clamp plate 101. The output ends of the two second pressing cylinders 102 pass through the first clamp plate 8. The second pressing cylinders 102 are preferably electric telescopic rods, or air cylinders or hydraulic telescopic rods. There are two first rollers 103, which are respectively fixed on the output ends of the two second pressing cylinders 102; when the second pressing cylinder 102 is pressed downward, it drives the two first rollers 103 to be pressed on the upper surfaces of the first steel plate 15 and the second steel plate 16 respectively.

[0081] like Figure 2 , Figure 3 and Figure 4 As shown, the second pressure member is arranged on the bottom plate 105 and contacts the lower surface of the first steel plate 15 and the second steel plate 16. The second pressure member includes a fork plate 106, a roller 108 and a second roller 109. The fork plate 106 is formed on both sides of the front end of the bottom plate 105, and the roller 108 is rotatably connected to the fork plate 106, and the two ends extend out of the fork plate 106; the second roller 109 is fixed to the two ends of the roller 108 extending out of the fork plate 106, and contacts the lower surface of the first steel plate 15 and the second steel plate 16.

[0082] The first roller 103 and the second roller 109 clamp the ends of the first steel plate 15 and the second steel plate 16 to form a clamping during the moving process. The pressing plate 7 of the end clamp is the first clamping point in the fixed state, and the clamping point of the first roller 103 and the second roller 109 is the second clamping point in the moving state. The two cooperate to form a two-point relative clamping of the weld, and cooperate with the suction cup 145 to form a three-point fixation, which effectively improves the stability of the first steel plate 15 and the second steel plate 16 when being welded.

[0083] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the third pressure member is arranged on the second pressure member and contacts the bottom surface of the welding pad 17, so that the welding pad 17 is pressed against the weld at the bottom of the first steel plate 15 and the second steel plate 16. The third pressure member includes a wrapping roller 107, which is sleeved on the outer wall surface of the rotating roller 108. In addition, a groove cavity 112 is formed on the inner side of the two fork plates 106; wherein, when the welding pad 17 passes through the groove cavity 112, it is pressed against the bottom of the weld by the wrapping roller 107. What needs to be explained in detail in this part is that one end of the welding pad 17 is pre-welded to the bottom of the weld, and the other end passes through the groove cavity 112 and then adheres to the bottom surface of the bottom plate 105 and extends backward, and the portion of the welding pad 17 that does not extend into the groove cavity 112 is supported by the wrapping roller 107 to be deformed and pressed against the bottom position of the weld. As the movable clamp body 10 continues to move backward, the wrapping roller 107 continuously presses the rear welding pad 17 part against the bottom of the weld, so that the second welding head 62 welds the pressed welding pad 17 to the bottom of the weld.

[0084] Working principle: A crane or a mechanical arm is used to place the first steel plate 15 and the second steel plate 16 on the first workbench 1 and the second workbench 2 respectively, and after calibrating the positions, they are pushed inwards for docking.

[0085] During docking, the first steel plate 15 and the second steel plate 16 are in contact with the driven roller 13 and the positioning roller group 14 respectively, and the vacuum generator 11 generates negative pressure, which acts on the hollow cavity inside each main shaft 146; the suction cup 145 located at the top is connected with the gas channel and the hollow cavity of the main shaft 146, and the other suction cups 145 are blocked by the filling sleeve 144. The negative pressure suction force will not act on other suction cups 145. Therefore, only the suction cup 145 located at the top will generate adsorption force, which is adsorbed on the bottom surface of the first steel plate 15 and the second steel plate 16, so that the first steel plate 15 and the second steel plate 16 can be adsorbed and positioned during the movement. As the rotating wheel ring 142 continues to rotate, the rotating wheel ring 142 at the top rotates and deviates and detaches from the gas channel. At this time, the adsorption force decreases until it disappears, and the suction cup 145 detaches from the first steel plate 15 and the second steel plate 16. When the subsequent suction cup 145 rotates to the top, it is reconnected with the gas channel and adsorbs the first steel plate 15 and the second steel plate 16 again.

[0086] The first steel plate 15 and the second steel plate 16 are respectively pressed against the two sides of the vertical plate 104 and then stopped. The first pressing cylinder 9 is pressed downward to drive the two pressing plates 7 to press against the first steel plate 15 and the second steel plate 16, thereby pressing and fixing the ends of the first steel plate 15 and the second steel plate 16. The second pressing cylinder 102 is pressed downward to drive the two first rollers 103 to press against the upper surfaces of the first steel plate 15 and the second steel plate 16, respectively, and the second rollers 109 are pressed against the lower surfaces of the first steel plate 15 and the second steel plate 16, thereby clamping the first steel plate 15 and the second steel plate 16.

[0087] One end of the welding pad 17 is pre-welded to the bottom of the weld, and the other end passes through the groove cavity 112 and then adheres to the bottom surface of the bottom plate 105 and extends backward. In addition, the part of the welding pad 17 that does not extend into the groove cavity 112 is supported by the wrapping roller 107 to be deformed and pressed against the bottom position of the weld.

[0088] The moving mechanism 4 drives the welding machine 6 to move horizontally. The first roller 103 and the second roller 109 continue to clamp the two steel plates during the movement. The first welding head 61 welds the top of the weld to weld the first steel plate 15 and the second steel plate 16. As the movable clamp body 10 continues to move backward, the wrapping roller 107 continuously presses the rear welding pad 17 part against the bottom of the weld, so that the second welding head 62 welds the pressed welding pad 17 to the bottom of the weld.

[0089] After the welding machine 6 moves to the extension section 51, the first welding head 61, the second welding head 62 and the movable clamp body 10 are separated from the weld, completing the welding of the weld and the welding pad 17. The first pressing cylinder 9 rises to drive the pressing plate 7 to separate, and the first steel plate 15 and the second steel plate 16 are welded into one body, and then separated from the workbench (the first workbench 1 and the second workbench 2) by a crane or a mechanical arm.

[0090] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel plate butt welding device, characterized in that: include: A workbench, the workbench comprising a first workbench (1) and a second workbench (2) arranged opposite to each other, a first steel plate (15) and a second steel plate (16) being placed on the first workbench (1) and the second workbench (2) respectively; Welding device, comprising: A first seat (3) fixed to one end of the first workbench (1); An end clamping body is connected to one side of the first pedestal (3) and is suspended above the weld between the first steel plate (15) and the second steel plate (16); the end clamping body comprises: A first fixture plate (8) fixedly connected to the first pedestal (3); Two first pressing cylinders (9) are respectively fixed on two sides of the first fixture plate (8), and the output ends of the two first pressing cylinders (9) pass through the first fixture plate (8); There are two pressing plates (7), which are respectively fixed on the output ends of the two first pressing cylinders (9); when the first pressing cylinders (9) are working downward, the two pressing plates (7) are driven to be pressed on the first steel plate (15) and the second steel plate (16) respectively; A second base (5) fixed to the other end of the first workbench (1); A moving mechanism (4) is arranged on the first pedestal (3) and the second pedestal (5), is arranged along the length direction of the weld between the first steel plate (15) and the second steel plate (16), and is suspended above the first workbench (1); A welding machine (6) is arranged on the moving mechanism (4); the welding machine (6) has a first welding head (61) and a second welding head (62); The movable clamp body (10) is connected to the welding machine (6) and is suspended at the weld; the first welding head (61) is arranged at the top of the movable clamp body (10), and the second welding head (62) is arranged at the bottom of the movable clamp body (10); the movable clamp body (10) comprises: A second fixture plate (101) is fixedly connected to the welding machine (6) and is located above the weld; A bottom plate (105) located below the weld and fixedly connected to the second fixture plate (101) via a vertical plate (104); A first pressure member is arranged on the second fixture plate (101) and contacts the upper surfaces of the first steel plate (15) and the second steel plate (16); the first pressure member comprises: Two second pressing cylinders (102) are respectively fixed on two sides of the second clamping plate (101), and the output ends of the two second pressing cylinders (102) pass through the first clamping plate (8); There are two first rollers (103), which are respectively fixed on the output ends of the two second pressing cylinders (102); when the second pressing cylinders (102) are pressed downward, the two first rollers (103) are driven to be pressed against the upper surfaces of the first steel plate (15) and the second steel plate (16); The second pressure member is arranged on the bottom plate (105) and contacts the lower surfaces of the first steel plate (15) and the second steel plate (16); the second pressure member comprises: Fork plates (106) are formed on both sides of the front end of the bottom plate (105), and groove cavities (112) are formed inside the two fork plates (106); A rotating roller (108) rotatably connected to the fork plate (106), with two ends extending out of the fork plate (106); The second roller (109) is fixed at the two ends of the rotating roller (108) extending out of the fork plate (106), and contacts the lower surfaces of the first steel plate (15) and the second steel plate (16); A third pressure member is arranged on the second pressure member and contacts the bottom surface of the welding pad (17), so that the welding pad (17) is pressed tightly against the weld at the bottom of the first steel plate (15) and the second steel plate (16); the third pressure member comprises a wrapping roller (107) which is sleeved on the outer wall surface of the rotating roller (108); wherein the welding pad (17) is pressed tightly against the bottom of the weld by the wrapping roller (107) when passing through the groove cavity (112); The first welding head (61) is hinged to the second fixture plate (101) via a pull rod (111); a push-pull cylinder (110) is also hinged to the top of the second fixture plate (101); and the output end of the push-pull cylinder (110) is hinged to the pull rod (111); A welding backing plate (17), one end of which is welded to the first steel plate (15) and the second steel plate (16), and is arranged at the bottom of the weld; When the welding machine (6) moves, it drives the movable clamp body (10) to move and clamp the first steel plate (15) and the second steel plate (16), and presses the welding pad (17) against the weld at the bottom of the first steel plate (15) and the second steel plate (16); the first welding head (61) is arranged above the weld to weld the weld, and the second welding head (62) is arranged inside the weld to weld the welding pad (17) and the weld.

2. The steel plate butt welding equipment according to claim 1, characterized in that: The moving mechanism (4) comprises: A slide box (45) fixed on the first pedestal (3); A lead screw (43) is rotatably connected between the slide box (45) and the second pedestal (5), and is rotatably connected to the bottom of the welding machine (6); A motor (41) is fixed on the slide box (45) and drives the lead screw (43) to rotate; A light bar (42) is fixedly connected between the slide box (45) and the second pedestal (5), and is slidably connected to the bottom of the welding machine (6); A universal wheel (44) is fixed on the bottom of the welding machine (6).

3. A steel plate butt welding device according to claim 1 or 2, characterized in that: The second pedestal (5) extends outward to form an extension section (51); when the welding machine (6) moves along the lead screw (43) and the light rod (42) to the position of the extension section (51), the first welding head (61) and the second welding head (62) complete the welding of the weld seam and the welding pad (17).

4. The steel plate butt welding equipment according to claim 1, characterized in that: The surfaces of the first workbench (1) and the second workbench (2) are rotatably connected with support rollers, and the support rollers include a plurality of driven rollers (13) and a positioning roller group (14).

5. The steel plate butt welding equipment according to claim 4, characterized in that: The positioning roller assembly (14) comprises: A plurality of main shafts (146) having a hollow cavity, one end of each main shaft (146) being connected to a vacuum generator (11), and the other end being provided with a plug (12); an inner opening (141) is provided on an outer wall of the main shaft (146); the outer side of the main shaft (146) is rotatably connected to a rotating wheel ring (142) via a rotating member (147), and the rotating wheel ring (142) protrudes from the upper surfaces of the first workbench (1) and the second workbench (2); A filling sleeve (144) is sleeved and fixed on the outside of the main shaft (146) and is located on the inside of the rotating member (147); a through hole (143) is opened on the filling sleeve (144), and the through hole (143) is connected to the inner opening (141) to form a gas passage; A plurality of suction cups (145) are fixed on the rotating wheel ring (142); When the rotating wheel ring (142) rotates on the main shaft (146), the suction cup (145) located at the top is connected to the gas channel and the hollow cavity of the main shaft (146).

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