Welding device

Abstract

The utility model provides a welding device which comprises a magnetic vehicle which comprises a vehicle body, a connecting piece arranged at the top of the vehicle body, a magnetic wheel arranged at the bottom of the vehicle body and a plurality of guide wheels located on one side of the vehicle body and arranged at intervals. The magnetic wheel can generate magnetic force to be magnetically attracted to the to-be-welded part I or release the magnetic force to be separated from the to-be-welded part I; the welding equipment comprises a shell, a mounting piece arranged at the bottom of the shell and a welding gun arranged on one side of the shell; the mounting piece is detachably connected with the connecting piece, so that the welding equipment can be connected to the magnetic vehicle; and when the multiple guide wheels are all located on the weld joint between the first to-be-welded part and the second to-be-welded part, the gun head of the welding gun faces the plane where the multiple guide wheels are located, and welding operation is conducted. The magnetic trolley and the welding device can be carried to the closed space and then assembled in the closed space, and welding can be conducted after assembly. The welding device is simple in structure, easy to assemble and disassemble and convenient to carry.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding device. Background Technology

[0002] Currently, the circumferential welding of the tank head and the cylinder is a closed-space operation, with access only through manholes. However, the manholes are limited in size and not located at the center of the tank, making it impossible for intelligent equipment to enter. Furthermore, the limited space and high equipment requirements necessitate manual welding, resulting in low efficiency and high labor intensity for workers. Utility Model Content

[0003] The purpose of this invention is to provide a welding device suitable for operation in confined spaces, thereby solving the problems in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides a welding device, comprising:

[0005] A magnetic vehicle includes a vehicle body, a connector disposed on the top of the vehicle body, a magnetic wheel disposed on the bottom of the vehicle body, and a plurality of guide wheels located on one side of the vehicle body and spaced apart; the magnetic wheel is capable of generating magnetic force to magnetically attract to a workpiece to be welded or releasing the magnetic force to detach from the workpiece to be welded;

[0006] A welding device includes a housing, a mounting component disposed at the bottom of the housing, and a welding torch disposed on one side of the housing; the mounting component is detachably connected to the connecting component so that the welding device can be connected to the magnetic vehicle;

[0007] When multiple guide wheels are located at the weld seam between the first and second workpieces to be welded, the welding torch tip is directed toward the plane containing the multiple guide wheels and welding is performed.

[0008] In one embodiment, the magnetic vehicle further includes:

[0009] Multiple connecting rods are provided, each corresponding to one of the multiple guide wheels; one end of each connecting rod is connected to the vehicle body, and the other end extends outward from the vehicle body and is movably connected to the guide wheel; the connecting rods allow the guide wheels to rotate and move up and down.

[0010] Multiple elastic elements are provided, each corresponding to one of the multiple connecting rods; the first end and the second end of the elastic element are respectively connected to the vehicle body and the connecting rod, and the first end of the elastic element is inclined upward towards the second end.

[0011] In one embodiment, the end of the connecting rod away from the vehicle body is provided with a through hole, the extension direction of the through hole is perpendicular to the extension direction of the connecting rod, a sliding plate is provided on the top of the guide wheel, the lower part of the sliding plate is rotatably connected to the guide wheel, an adjustment hole extending vertically is provided on the upper part of the sliding plate, an adjustment shaft passes through the through hole and the adjustment hole to connect the guide wheel and the connecting rod, and the adjustment shaft can move up and down within the adjustment hole.

[0012] In one embodiment, the welding equipment includes:

[0013] A laser emitter is disposed on one side of the housing and on the same side as the welding torch; the laser emitter is used to emit a light spot directed towards the weld seam;

[0014] A monitoring component is disposed on the housing; the monitoring component is used to detect the position of the welding torch tip relative to the laser emitter spot.

[0015] In one embodiment, the welding torch includes a multi-axis robotic arm that connects the housing and the torch head;

[0016] The welding device includes a controller, which is communicatively connected to the monitoring component and the multi-axis robotic arm.

[0017] The welding torch, the laser emitter, and the monitoring device are connected to the housing via a connecting plate.

[0018] The laser emitting device is an infrared laser; the monitoring device is a camera.

[0019] In one embodiment, the welding equipment includes a lifting mechanism to drive the welding torch to rise and fall;

[0020] The lifting mechanism includes:

[0021] A lifting slider is fixedly connected to the welding gun;

[0022] A lifting drive component is connected to the lifting slider to drive the lifting slider to move up and down.

[0023] In one embodiment, one end of the housing is open, and the lifting slider is disposed inside the housing and close to the opening; the lifting mechanism includes a lifting slide plate fixedly connected between the lifting slider and the welding torch, the lifting slide plate carrying the welding torch up and down, and the lifting slide plate being located outside the opening;

[0024] The lifting slide plate is provided with a connecting plate on the side opposite to the housing, and the connecting plate is connected to the welding gun;

[0025] The welding device includes a controller, which is communicatively connected to the lifting drive component.

[0026] In one embodiment, the lifting drive includes a lifting screw and a motor, the lifting screw passes through the lifting slider and is screwed to the lifting slider, and the motor drives the lifting screw to rotate;

[0027] The lifting mechanism includes a guide post passing through the lifting slider, and the guide post extends vertically.

[0028] The lifting mechanism includes an upper baffle fixed inside the housing, the upper baffle being located above the lifting slider and used to stop the lifting slider;

[0029] The lifting mechanism includes a lower baffle fixed inside the housing, which is located below the lifting slider and is used to stop the lifting slider.

[0030] In one embodiment, the welding equipment includes a traversing mechanism for driving the housing to move relative to the mounting member, such that when the mounting member is connected to the connector, the housing can bring the welding torch closer to or away from the weld.

[0031] The lateral movement mechanism includes:

[0032] A transverse lead screw extends along the length of the housing and is rotatably connected to the bottom of the housing; the transverse lead screw passes through the mounting component and is screwed to the mounting component; the welding torch is located at one end of the length of the housing.

[0033] A transverse drive unit is connected to the transverse lead screw and drives the transverse lead screw to rotate.

[0034] In one embodiment, the welding apparatus includes a controller that is communicatively connected to the traverse drive.

[0035] The lateral movement mechanism includes:

[0036] A guide rail is disposed at the bottom of the housing and extends along the length of the housing itself;

[0037] A transverse slider is fixed to the mounting component and slides in cooperation with the guide rail.

[0038] In one embodiment, a connecting block is provided in the middle of the vehicle body. The connecting block is dovetail-shaped and constitutes the connecting member. A mounting block is provided at the bottom of the housing. A dovetail groove is provided on the mounting block and constitutes the mounting member. The dovetail groove cooperates with the connecting block to realize a detachable connection between the vehicle body and the housing.

[0039] The dovetail groove is located on the outer side of the shell in the width direction, and the opening of the dovetail groove faces outward and is vertically continuous.

[0040] In one embodiment, a base is provided on the top of one end of the vehicle body, and the welding device includes a welding wire spool and a support rod fixed to the bottom of the welding wire spool. The support rod can be sleeved on the outer periphery of the base and rest on the vehicle body; the base is located on the side away from the guide wheel.

[0041] A base is provided on the top of one end of the vehicle body. The welding device includes a flux box and a support rod fixed to the bottom of the flux box. The support rod can be sleeved on the outer periphery of the base and rest on the vehicle body. The base is located on the side away from the guide wheel.

[0042] In one embodiment, the welding equipment includes a wire feeder connected to the housing and positioned above the welding torch.

[0043] As can be seen from the above technical solution, the advantages and positive effects of this utility model are as follows:

[0044] The welding apparatus of this application includes a magnetic cart and welding equipment that can be detachably connected to the magnetic cart. Therefore, the above structures can be transported to a closed space, assembled in the closed space, and then welded. The welding apparatus has a simple structure, and the assembly and disassembly operations are simple and easy to transport.

[0045] Guided by the guide wheels of the magnetic cart, the cart magnetically attaches to the surface to be welded. With the welding torch aligned with the guide wheels on the same plane, the torch is positioned towards the weld seam. After completing these steps, the operator can exit the confined space, eliminating the need for welding work within the confined area. This mechanization significantly reduces manual labor intensity, improves work efficiency, and enhances welding quality. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of one embodiment of the welding device in this utility model.

[0047] Figure 2 This is a schematic diagram of one embodiment of the magnetic vehicle in this utility model.

[0048] Figure 3 yes Figure 2 A structural diagram from another perspective.

[0049] Figure 4 This is a schematic diagram of one embodiment of the welding equipment in this utility model.

[0050] Figure 5 This is a partial structural schematic diagram of the welding equipment in this utility model.

[0051] Figure 6 This is a partial structural schematic diagram of the welding equipment in this utility model from another perspective.

[0052] Figure 7 This is a schematic diagram of the structure of the welding device located inside the workpiece 1 and workpiece 2 in this utility model.

[0053] The annotations in the attached figures are explained as follows:

[0054] 1. Welding device; 11. Magnetic cart; 111. Car body; 1111. Slot; 112. Connector; 113. Magnetic wheel; 114. Guide wheel; 115. Connecting rod; 116. Elastic element; 1171. Control lever; 1172. Handle; 118. Base; 119. Base; 12. Welding equipment; 121. Housing; 122. Mounting part; 1221. Dovetail groove; 123. Welding torch; 124. 125. Laser emitting component; 1261. Monitoring component; 1262. Lifting slider; 1263. Lifting slide plate; 1264. Lifting screw; 1265. Guide rod; 1266. Upper baffle; 1267. Lower baffle; 1271. Horizontal sliding screw; 1272. Guide rail; 1273. Horizontal sliding slider; 128. Wire feeder; 129. Handle; 13. Welding wire spool; 14. Support rod; 15. Flux box; 16. Support rod;

[0055] 2. Part to be welded 1; 21. Manhole; 3. Part to be welded 2. Detailed Implementation

[0056] Although the present invention can be readily embodied in various forms, only some specific embodiments are shown in the accompanying drawings and will be described in detail in this specification. It is understood that this specification should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to what is described herein.

[0057] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0058] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of the various elements of this invention are relative rather than absolute. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, these directional indications also change accordingly.

[0059] This application provides a welding apparatus for automated welding operations, which improves efficiency, reduces labor intensity, and improves welding quality.

[0060] This welding device is particularly suitable for welding operations on circumferential welds and welding operations in confined spaces.

[0061] For example, the first component to be welded is the end cap of the tank, and the second component to be welded is the cylinder of the tank. After welding the end cap and the cylinder, the tank is formed. At this time, the end cap and the cylinder enclose each other to form a closed space. The weld between the first component to be welded and the second component to be welded is a circumferential weld.

[0062] The welding equipment is described in detail below.

[0063] See Figure 1 The welding device 1 includes a magnetic cart 11 and a welding equipment 12. The two are detachably connected, which allows for quick assembly and disassembly. This facilitates entry into the enclosed space through the manhole 21, thereby avoiding the need for manual welding. This achieves a mechanized welding method, improves welding efficiency, reduces the labor intensity of operators, and improves welding quality.

[0064] For ease of description, the length direction of the magnetic vehicle 11 is defined as longitudinal, the width direction as transverse, and the height direction as vertical.

[0065] Combination Figure 2 and Figure 3 The magnetic vehicle 11 includes a vehicle body 111, a connector 112 disposed on the top of the vehicle body 111, a magnetic wheel 113 disposed on the bottom of the vehicle body 111, and a plurality of guide wheels 114 disposed on one side of the vehicle body 111 and spaced apart.

[0066] The cross-section of the vehicle body 111 is roughly square. The vehicle body 111 is used to support the welding equipment 12, therefore the vehicle body 111 has a certain load-bearing capacity.

[0067] A connecting block is provided in the middle of the vehicle body 111. The connecting block is dovetail-shaped and constitutes the connector 112. The dovetail shape specifically means that the cross-section of the connecting block is hexagonal. The hexagon is composed of a rectangle and an isosceles trapezoid, with the two legs of the isosceles trapezoid approaching each other along the direction away from the rectangle.

[0068] Specifically, the top of the vehicle body 111 is recessed downward to form a slot 1111, which extends laterally. The welding equipment 12 is detachably connected to the connecting block and is partially located within the slot 1111.

[0069] Magnetic wheels 113 are disposed at the bottom of the vehicle body 111. In this embodiment, the magnetic wheels 113 are disposed at the corners of the vehicle body 111. That is, there are four magnetic wheels 113, which are arranged at the bottom of the four corners of the vehicle body 111.

[0070] The magnetic wheel 113 can generate magnetic force to magnetically attract the workpiece 2 to be welded or release the magnetic force to detach from the workpiece 2 to be welded.

[0071] Furthermore, a control lever 1171 is provided on the vehicle body 111, which, when operated, causes the magnetic wheel 113 to have or not have magnetic force. The control lever 1171 is located on one side of the vehicle body 111. In this embodiment, the control lever 1171 is located on the lateral side of the vehicle body 111.

[0072] The magnetic vehicle 11 also includes a handle 1172 disposed at at least one end of the longitudinal axis of the vehicle body 111. The handle 1172 is U-shaped, with its opening facing the vehicle body 111, and is connected to the longitudinal end of the vehicle body 111. The handle 1172 is used by an operator to grip and perform pushing or pulling actions. In this embodiment, there are two handles 1172, one at each end of the longitudinal axis of the vehicle body 111.

[0073] Multiple guide wheels 114 are longitudinally spaced on one side of the vehicle body 111. The axis of the guide wheels 114 extends laterally.

[0074] The magnetic vehicle 11 also includes multiple connecting rods 115 and multiple elastic elements 116. The connecting rods 115 are used to connect the vehicle body 111 and the guide wheel 114, and the elastic elements 116 are used to provide restoring force to the guide wheel 114.

[0075] Multiple connecting rods 115 are correspondingly arranged with multiple guide wheels 114. The connecting rods 115 extend laterally. One end of the connecting rod 115 is connected to the vehicle body 111, and the other end extends outward from the vehicle body 111 and is movably connected to the guide wheel 114. The connecting rod 115 allows the guide wheel 114 to rotate and move up and down, that is, the connecting rod 115 and the guide wheel 114 can rotate and move up and down.

[0076] In this embodiment, there are two guide wheels 114 and two connecting rods 115. The two connecting rods 115 are located at the longitudinal ends of the vehicle body 111. The connecting rods 115 extend laterally.

[0077] Specifically, the connecting rod 115 is connected to the vehicle body 111 by bolts and nuts.

[0078] The end of the connecting rod 115 away from the vehicle body 111 is provided with a through hole, and the extension direction of the through hole is perpendicular to the extension direction of the connecting rod 115. That is, the axis of the through hole extends longitudinally.

[0079] A sliding plate is mounted on the top of the guide wheel 114. The lower part of the sliding plate is rotatably connected to the guide wheel 114. An adjustment hole extending vertically is provided on the upper part of the sliding plate. An adjustment shaft passes through the through hole and the adjustment hole to connect the guide wheel 114 to the connecting rod 115. The adjustment shaft can move up and down within the adjustment hole, thereby realizing the raising and lowering of the guide wheel 114 relative to the connecting rod 115.

[0080] In this embodiment, the slide plate includes a block and a plate fixed to the block. The block has a rotating hole, and the plate has an adjustment hole. Alternatively, the shaft of the guide wheel 114 can be inserted into the rotating hole, or a bearing can be installed in the rotating hole, with the shaft of the guide wheel 114 cooperating with the bearing.

[0081] The guide wheel 114 rotates and rises and falls relative to the connecting rod 115 via a sliding plate.

[0082] Furthermore, the inner side of the end of the connecting rod 115 away from the vehicle body 111 is provided with an inwardly opening receiving groove, which communicates with the through hole, so that when the sliding plate is attached to the connecting rod 115, the outer side of the sliding plate is flush with the outer side of the connecting rod 115. At this time, the outer side refers to the side of the sliding plate facing the other connecting rod 115.

[0083] Multiple elastic elements 116 are provided in a one-to-one correspondence with multiple connecting rods 115. The first end and the second end of the elastic element 116 are respectively connected to the vehicle body 111 and the connecting rod 115, and the first end of the elastic element 116 is inclined upward towards the second end.

[0084] The elastic element 116 is disposed on the outer side of the connecting rod 115, i.e., the side of the connecting rod 115 facing away from the vehicle body 111. Specifically, the vehicle body 111 is provided with a first protrusion, which is located below the connecting rod 115, and the first protrusion is spaced apart on the lateral side of the connecting rod 115 facing away from the guide wheel 114. The connecting rod 115 is provided with a second protrusion. The first end of the elastic element 116 is connected to the first protrusion, and the second end is connected to the second protrusion.

[0085] In this embodiment, the elastic element 116 is a spring, and both the first protrusion and the second protrusion are provided with through holes. The first end and the second end of the elastic element 116 hook onto the through holes of the first protrusion and the second protrusion, respectively.

[0086] The elastic element 116 is provided to provide a downward restoring force after the guide wheel 114 moves upward, causing the guide wheel 114 to descend.

[0087] Combination Figures 4-6The welding equipment 12 includes a housing 121, a mounting member 122 disposed at the bottom of the housing 121, and a welding torch 123 disposed on one side of the housing 121. The mounting member 122 is detachably connected to the connector 112 so that the welding equipment 12 can be positioned on the magnetic cart 11.

[0088] When multiple guide wheels 114 are located at the weld seam between workpiece 1 2 and workpiece 2 3, the nozzle of the welding torch 123 is directed toward the plane where the multiple guide wheels 114 are located and welding is performed.

[0089] The housing 121 is rectangular and its length extends laterally along the vehicle body 111. One end of the housing 121 is open. Specifically, the housing 121 includes a top plate, a bottom plate, two side plates, and an end plate. The top plate and the bottom plate are arranged parallel to each other, the two side plates are arranged on opposite sides of the top plate and the bottom plate, and the end plate is located at one end of the top plate and the bottom plate.

[0090] The bottom of the housing 121 is provided with a mounting block, and a dovetail groove 1221 is provided on the mounting block. The mounting block constitutes the mounting component 122. The dovetail groove 1221 cooperates with the connecting block to realize the detachable connection between the vehicle body 111 and the housing 121.

[0091] The shape of the dovetail groove 1221 is adapted to the connecting block, and the shape of the connecting block can be referred to the above.

[0092] The dovetail groove 1221 is preferably located on the outer side of the housing 121 in the width direction, specifically, the dovetail groove 1221 is provided on the part of the mounting block that protrudes from the housing 121. The opening of the dovetail groove 1221 faces outward and is continuous vertically.

[0093] When installing the welding equipment 12 and the magnetic car 11, align the dovetail groove 1221 with the connecting block, and lower the housing 121 from top to bottom until the welding equipment 12 is completely placed on the car body 111, completing the detachable connection between the two. When it is necessary to disconnect the two, lift the welding equipment 12 upwards until the mounting block detaches from the connecting block.

[0094] When the welding equipment 12 and the magnetic car 11 are connected, the mounting block is located in the slot 1111 and extends upward beyond the top surface of the car body 111. The length of the housing 121 extends laterally, and the two lateral ends of the housing 121 extend outward beyond the lateral sides of the car body 111.

[0095] A handle 129 is provided on the top of the housing 121 for easy handling and transport of the welding equipment 12. The handle 129 and the welding torch 123 are located at opposite ends of the length of the housing 121. In this embodiment, the handles 129 are spaced apart above the housing 121 and extend along the length of the housing 121.

[0096] The welding torch 123 is disposed on one side of the housing 121. When the housing 121 is connected to the vehicle body 111, the welding torch 123 is located on the lateral side of the vehicle body 111 and on the same side as the guide wheel 114.

[0097] The welding torch 123 includes a multi-axis robotic arm, which connects the housing 121 and the torch head. The welding torch 123 comprises a multi-axis robotic arm and a torch head. The multi-axis robotic arm can have 3, 6, or other degrees of freedom, depending on the specific requirements. The direction of the torch head is adjusted by adjusting the multi-axis robotic arm.

[0098] The welding equipment 12 includes a laser emitter 124 and a monitoring device 125. The laser emitter 124 is disposed on one side of the housing 121 and on the same side as the welding torch 123. Specifically, the welding torch 123, the laser emitter 124, and the monitoring device 125 are connected to the housing 121 via a connecting plate.

[0099] The laser emitter 124 is used to emit a light spot that points towards the weld. Specifically, the laser emitter 124 is an infrared laser.

[0100] A monitoring component 125 is mounted on the housing 121. The monitoring component 125 is used to detect the position of the welding torch 123 tip relative to the laser spot of the laser emitter 124. Specifically, the monitoring component 125 is a camera.

[0101] Therefore, when it is detected that the welding torch is not pointing at the spot, the welding torch 123 can be adjusted to point towards the spot. This adjustment is achieved using a multi-axis robotic arm.

[0102] The welding device 1 includes a controller, which is communicatively connected to the monitoring component 125 and the multi-axis robotic arm. The controller is used to receive signals from the monitoring component 125 and control the movement of the multi-axis robotic arm. That is, when the monitoring component 125 detects that the position of the welding torch is not the position of the light spot, the controller controls the movement of the multi-axis robotic arm to adjust the direction of the welding torch 123.

[0103] Therefore, the position of the welding torch 123 can be adjusted by the operator outside the confined space through the control of the controller, which improves the level of intelligence.

[0104] Furthermore, the welding equipment 12 includes a lifting mechanism to drive the lifting and lowering of the welding torch 123. The lifting and lowering capability of the welding torch 123 allows for better adjustment of its position, enabling it to point towards the weld seam. This lifting and lowering capability also ensures that the welding device 1 can point towards the weld seam under different conditions, improving its versatility.

[0105] Specifically, the lifting mechanism includes a lifting slider 1261 and a lifting drive component. The lifting slider 1261 is fixedly connected to the welding torch 123. The lifting drive component is connected to the lifting slider 1261 to drive the lifting slider 1261 to move up and down.

[0106] The lifting slider 1261 is disposed inside the housing 121 and near the opening. That is, the lifting slider 1261 moves up and down inside the housing 121.

[0107] The lifting mechanism includes a lifting slide plate 1262 fixedly connected between the lifting slider 1261 and the welding torch 123. The lifting slide plate 1262 lifts and lowers along with the welding torch 123, and the lifting slide plate 1262 is located outside the opening. A connecting plate is provided on the side of the lifting slide plate 1262 away from the housing 121. The connecting plate is connected to the welding torch 123, that is, the lifting slider 1261 lifts and lowers together with the lifting slide plate 1262, the connecting plate, the welding torch 123, the laser emitter 124, and the monitoring device 125.

[0108] The lifting drive component includes a lifting screw 1263 and a motor. The lifting screw 1263 passes through and is screwed onto the lifting slider 1261. The motor drives the lifting screw 1263 to rotate. The motor is fixed inside the housing 121.

[0109] The lifting mechanism includes guide posts that pass through the lifting slider 1261 and extend vertically. In this embodiment, there are two guide posts, arranged on opposite sides of the lifting screw 1263. That is, three through holes are provided at intervals on the lifting slider 1261, and the lifting screw 1263 passes through the through hole located in the middle.

[0110] The guide column ensures that the lifting slider 1261 moves vertically.

[0111] Furthermore, the lifting mechanism includes an upper baffle 1265 fixed inside the housing 121. The upper baffle 1265 is located above the lifting slider 1261 and is used to stop the lifting slider 1261.

[0112] The lifting mechanism includes a lower baffle 1266 fixed inside the housing 121. The lower baffle 1266 is located below the lifting slider 1261 and is used to stop the lifting slider 1261.

[0113] That is, the upper and lower limits of the lifting slider 1261 are achieved by the upper baffle 1265 and the lower baffle 1266.

[0114] The welding equipment 12 includes a traversing mechanism for driving the housing 121 to move relative to the mounting member 122, such that when the mounting member 122 is connected to the connector 112, the housing 121 can move the welding torch 123 closer to or away from the circumferential weld.

[0115] The lateral movement mechanism includes a lateral movement screw 1271 and a lateral movement drive component. The lateral movement screw 1271 extends along the length of the housing 121 and is rotatably connected to the bottom of the housing 121. The lateral movement screw 1271 passes through the mounting member 122 and is screwed to the mounting member 122. The welding torch 123 is located at one end of the housing 121 in a first direction.

[0116] The transverse drive is connected to the transverse lead screw 1271 and drives the transverse lead screw 1271 to rotate. In this embodiment, the transverse drive is a motor, the output shaft of which is connected to a gear, and the end of the transverse lead screw 1271 is also provided with a gear. The two gears mesh, thereby realizing the motor driving the rotation of the transverse lead screw 1271.

[0117] Furthermore, the lateral movement mechanism includes a guide rail 1272 and a lateral movement slider 1273. The guide rail 1272 is disposed at the bottom of the housing 121 and extends along the length of the housing 121 itself. The lateral movement slider 1273 is fixed to the mounting member 122 and slides in engagement with the guide rail 1272. Through the cooperation of the guide rail 1272 and the lateral movement slider 1273, the movement of the mounting member 122 is guided, ensuring that the housing 121 moves laterally along the magnetic cart 11.

[0118] In this embodiment, the guide rail 1272 is formed by a protrusion disposed at the bottom of the housing 121. The transverse slider 1273 is provided with a groove with a top opening, and the guide rail 1272 can be engaged in the groove of the transverse slider 1273. The transverse lead screw 1271 and the transverse slider 1273 are longitudinally spaced on the mounting member 122.

[0119] The welding equipment 12 includes a wire feeder 128 connected to the housing 121, and the wire feeder 128 is located above the welding torch 123. The wire feeder 128 and the welding torch 123 are located on the same side of the housing 121.

[0120] The welding device 1 includes a welding wire spool 13 and a support rod 14 fixed to the bottom of the welding wire spool 13. A base 118 is provided on the top of one end of the vehicle body 111. The support rod 14 can be sleeved on the outer periphery of the base 118 and rest on the vehicle body 111. In this embodiment, the cross-section of the base 118 is circular, and the cross-section of the support rod 14 is U-shaped. The interior of the support rod 14 is hollow, while the interior of the base 118 may or may not be hollow. The base 118 is located on the side away from the guide wheel 114.

[0121] The welding device 1 includes a flux box 15 and a support rod 16 fixed to the bottom of the flux box 15. A base 119 is provided at the top of one end of the vehicle body 111. The support rod 16 can be sleeved on the outer periphery of the base 119 and rest on the vehicle body 111. In this embodiment, the cross-section of the base 119 is circular, and the cross-section of the support rod 16 is U-shaped. The interior of the support rod 16 is hollow, while the interior of the base 119 may or may not be hollow. The base 119 is located on the side away from the guide wheel 114.

[0122] The base 118 and the base 119 are located at opposite ends of the vehicle body 111, while the welding wire spool 13 and the flux box 15 are located on opposite sides of the welding equipment 12.

[0123] The controller is communicatively connected to the traverse drive and can control the opening and closing of the traverse drive. That is, the operator can control the traverse drive through the controller to adjust the position of the welding equipment 12 relative to the magnetic cart 11.

[0124] The controller is communicatively connected to the lifting drive and can control the opening and closing of the lifting drive. That is, the operator can control the lifting drive through the controller to adjust the height of the welding torch 123, the laser emitter 124, and the monitoring device 125.

[0125] The controller settings allow operators to adjust the position of the welding torch 123 from outside a confined space.

[0126] When the magnetic cart 11 and welding equipment 12 are moved into the confined space, the welding torch 123 is positioned relative to the weld seam by the guide wheel 114, which positions the torch 123 on the same plane as the guide wheel 114. After the operator leaves the confined space, the adjustment is performed by the controller.

[0127] In summary, the welding apparatus 1 of this application includes a magnetic cart 11 and welding equipment 12, a wire spool 13, and a flux box 15 that can be detachably connected to the magnetic cart 11. Therefore, the above structures can be transported to a closed space, assembled in the closed space, and then welding can be performed. The welding apparatus 1 has a simple structure, and the assembly and disassembly operations are simple and easy to transport.

[0128] Guided by the guide wheel 114 of the magnetic cart 11, the magnetic cart 11 is magnetically attracted to the part to be welded. With the welding torch 123 aligned with the guide wheel 114 on the same plane, the welding torch 123 is ensured to face the weld seam. After completing the above operations, the operator can exit the confined space, eliminating the need for welding work within the confined space. This mechanization significantly reduces manual labor intensity, improves work efficiency, and enhances welding quality.

[0129] When the welding device 1 is performing welding operations, the magnetic cart 11 is magnetically attracted to the workpiece 2 to be welded, and due to its own weight, it is always stable on the workpiece 2 to be welded. The workpiece 3 to be welded can rotate to achieve the welding of the circumferential weld. At the same time, the guide wheel 114 ensures that the position of the welding gun 123 is consistent with the weld, thereby reducing human intervention. The operator only needs to make fine adjustments using the controller outside to complete the entire operation.

[0130] The welding method of the above-mentioned welding apparatus 1 includes the following steps:

[0131] S1. Move the magnetic cart 11 and the welding equipment 12 from the manhole 21 on the workpiece to be welded to the workpiece to be welded 2, and connect the welding equipment 12 to the magnetic cart 11.

[0132] Specifically, both the first part 2 and the second part 3 had completed pre-welding preparations such as beveling before welding.

[0133] Then, place the workpiece 1 (2) and workpiece 2 (3) in the preset positions. See example for details. Figure 7 Part 2 to be welded is the tank head, and part 3 to be welded is the tank cylinder. The head and cylinder are placed sequentially along the axial direction to form a sealed space. The cylinder is placed on a roller frame so that it can rotate.

[0134] The magnetic car 11, welding equipment 12, welding wire spool 13 and flux box 15 enter the sealed space through the manhole 21 and are assembled in the sealed space.

[0135] During assembly, align the dovetail groove 1221 on the mounting block of the welding equipment 12 with the dovetail-shaped connecting block, and slowly lower it until the welding equipment 12 rests on the vehicle body 111. Then, place the support rod 14 onto the base 118 and lower it onto the vehicle body 111. Finally, place the support rod 16 onto the base 118 and lower it onto the vehicle body 111. This completes the assembly. The assembly sequence is not fixed; it can be done simultaneously or any one of the components can be added at a time. The entire assembly process is simple and quick, greatly improving efficiency.

[0136] S2. Adjust the position of the magnetic car 11 so that multiple guide wheels 114 are positioned at the circumferential weld between the workpiece 1 2 and the workpiece 2 3.

[0137] Specifically, by pulling or pushing the magnetic cart 11 through the handle 1172 on the magnetic cart 11, the guide wheel 114 is positioned in the circumferential weld between the workpiece 2 to be welded and the workpiece 3 to be welded.

[0138] Combination Figure 7 The guide wheel 114 can roll along the circumferential weld.

[0139] S3. The magnetic wheel 113 generates a magnetic force and magnetically attracts the workpiece 2 to be welded.

[0140] The operator operates the control lever 1171 to generate magnetic force on the magnetic wheel 113 and magnetically attract it to the workpiece 2 to be welded.

[0141] S4. Adjust the nozzle of the welding torch 123 so that it faces the plane where the multiple guide wheels 114 are located.

[0142] The operator adjusts the welding torch 123 so that the nozzle is facing the plane where the multiple guide wheels 114 are located, i.e., towards the circumferential weld.

[0143] After the operation is completed, the operator exits the enclosed space through manhole 21.

[0144] S5. Start the welding torch 123 and make the workpiece 2 3 to be welded start to rotate until the welding is completed.

[0145] After starting the welding torch 123, the welding torch 123 remains stationary while the workpiece 2 3 rotates at a preset speed. After the workpiece 2 3 rotates one revolution, the welding is completed.

[0146] When the workpiece 23 rotates, the guide wheel 114 may move upward, and the elastic element 116 will cause the guide wheel 114 to return to its original position.

[0147] Furthermore, the following steps are included before starting the welding torch 123:

[0148] The welding torch 123 is fired toward the circumferential weld and then checked to see if it is pointing toward that spot.

[0149] Specifically, a light spot is emitted by the laser emitter 124, and the welding torch 123 is detected by the monitoring device 125 to determine whether it is pointing at the light spot.

[0150] If there is a deviation, control the welding equipment 12 to move laterally and / or control the welding torch 123 to rise and fall, so that the welding torch 123 points to the spot.

[0151] The controller controls the transverse and lifting drive components to achieve fine-tuning of the welding torch 123, directing it towards the light spot.

[0152] After adjustment, the welding torch 123 is controlled by the controller to start working.

[0153] In summary, this welding method achieves mechanized welding through the detachable connection between the welding equipment 12 and the magnetic cart 11, and the welding gun 123. It eliminates the need for operators to perform welding, reduces labor intensity, improves welding efficiency, and enhances welding quality.

[0154] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A welding device, characterized in that, The magnetic vehicle comprises a vehicle body, a connecting piece arranged on the top of the vehicle body, a magnetic wheel arranged on the bottom of the vehicle body, and a plurality of guide wheels arranged on one side of the vehicle body and spaced apart; the magnetic wheel can generate a magnetic force to be attracted to a first welding part or be separated from the first welding part; The welding device comprises a shell, a mounting piece arranged on the bottom of the shell, and a welding gun arranged on one side of the shell; the mounting piece is detachably connected with the connecting piece, so that the welding device can be connected to the magnetic vehicle; When the plurality of guide wheels are located between the first welding part and a second welding part, the head of the welding gun is directed towards the plane where the plurality of guide wheels are located, and welding operation is performed. The magnetic vehicle further comprises:

2. The welding device of claim 1, wherein, a plurality of connecting rods corresponding to the plurality of guide wheels; one end of the connecting rod is connected to the vehicle body, and the other end of the connecting rod extends out of the vehicle body and is movably connected to the guide wheel; the connecting rod allows the guide wheel to rotate and lift; a plurality of elastic members corresponding to the plurality of connecting rods; the first end and the second end of the elastic member are connected to the vehicle body and the connecting rod respectively, and the first end of the elastic member is inclined upward towards the second end. The end of the connecting rod away from the vehicle body is provided with a through hole, the extension direction of the through hole is perpendicular to the extension direction of the connecting rod, the top of the guide wheel is provided with a sliding plate, the lower part of the sliding plate is movably connected to the guide wheel, the upper part of the sliding plate is provided with an adjusting hole extending vertically, and an adjusting shaft passes through the through hole and the adjusting hole to realize the connection between the guide wheel and the connecting rod; the adjusting shaft can move up and down in the adjusting hole.

3. The welding device of claim 2, wherein, The welding device comprises:

4. The welding device of claim 1, wherein, a laser emitting element arranged on one side of the shell and located on the same side of the welding gun; the laser emitting element is used for emitting a light spot directed to a welding seam; a monitoring element arranged on the shell; the monitoring element is used for detecting the position of the head of the welding gun directed to the light spot of the laser emitting element. The welding gun comprises a multi-axis mechanical arm connected to the shell and the head; 5. The welding device of claim 4, wherein, The welding device comprises a controller in communication connection with the monitoring element and the multi-axis mechanical arm; The welding gun, the laser emitting element and the monitoring element are connected to the shell through a connecting plate; The laser emitting element is an infrared laser, and the monitoring element is a camera. The welding device comprises a lifting mechanism to drive the welding gun to lift; 6. The welding device of claim 1, wherein, The lifting mechanism comprises: a lifting slider fixedly connected to the welding gun; a lifting driving element connected to the lifting slider to drive the lifting slider to lift. One end of the shell is open, and the lifting slider is arranged in the shell and close to the opening; the lifting mechanism comprises a lifting sliding plate fixedly connected between the lifting slider and the welding gun, the lifting sliding plate lifts the welding gun, and the lifting sliding plate is located outside the opening; 7. The welding device of claim 6, wherein, The side of the lifting sliding plate away from the shell is provided with a connecting plate, and the connecting plate is connected to the welding gun. ​ The welding device comprises a controller, which is in communication connection with the lifting driving element.

8. The welding device of claim 7, wherein, The lifting driving element comprises a lifting screw rod and a motor, the lifting screw rod passes through the lifting slider and is screwed with the lifting slider, and the motor drives the lifting screw rod to rotate. The lifting mechanism comprises a guide column passing through the lifting slider, which extends vertically. The lifting mechanism comprises an upper stop plate fixed in the shell, which is above the lifting slider and is used to stop the lifting slider. The lifting mechanism comprises a lower stop plate fixed in the shell, which is below the lifting slider and is used to stop the lifting slider.

9. The welding device of claim 1, wherein, The welding device comprises a horizontal moving mechanism, which is used to drive the shell to move relative to the mounting, so that when the mounting is connected to the connecting element, the shell can move close to or away from the welding seam with the welding gun. The horizontal moving mechanism comprises: a horizontal moving screw rod, which extends along the length direction of the shell and is rotatably connected to the bottom of the shell, passes through the mounting and is screwed with the mounting, and is arranged at one end of the length direction of the shell; a horizontal moving driving element, which is connected with the horizontal moving screw rod and drives the horizontal moving screw rod to rotate.

10. The welding device of claim 9, wherein, The welding device comprises a controller, which is in communication connection with the horizontal moving driving element. The horizontal moving mechanism comprises: a guide rail, which is arranged on the bottom of the shell and extends along the length direction of the shell; a horizontal moving slider, which is fixed on the mounting and is in sliding cooperation with the guide rail.

11. The welding device of claim 1, wherein, The middle part of the vehicle body is provided with a connecting block, which is dovetail-shaped, the connecting block constitutes the connecting element, the bottom of the shell is provided with a mounting block, the mounting block is provided with a dovetail groove, the mounting block constitutes the mounting, and the dovetail groove cooperates with the connecting block to realize the detachable connection between the vehicle body and the shell. The dovetail groove is located on the outer side of the width direction of the shell, and the opening of the dovetail groove is outward and penetrates upward and downward.

12. The welding device of claim 1, wherein, The top of one end of the vehicle body is provided with a base, the welding device comprises a welding wire reel and a supporting rod fixed at the bottom of the welding wire reel, the supporting rod can be sleeved on the outer periphery of the base and falls on the vehicle body, and the base is arranged on the side away from the guide wheel. The top of one end of the vehicle body is provided with a base, the welding device comprises a welding agent box and a supporting rod fixed at the bottom of the welding agent box, the supporting rod can be sleeved on the outer periphery of the base and falls on the vehicle body, and the base is arranged on the side away from the guide wheel.

13. The welding device of claim 1, wherein, The welding device comprises a wire feeder connected to the shell, and the wire feeder is above the welding gun.

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