Steel pipe reinforcing ring angle welding device

Abstract

The invention provides a steel pipe reinforcing ring angle welding device which comprises a bearing base provided with a supporting module, and the supporting module comprises a rotation driving unit; the welding mechanism comprises a supporting cross beam which is arranged above the main body and extends in the axial direction of the main body; the supporting cross beam is connected with a plurality of angle welding modules in the extending direction, each angle welding module comprises at least one welding unit, and each welding unit comprises a welding head and a welding driving assembly for driving the welding head to move in a vertical plane parallel to the axis of a steel pipe; and the control unit is electrically connected with the welding driving assembly, and the control unit is at least configured to drive the welding head to move between the main body and the reinforcing ring through the welding driving assembly. The steel pipe reinforcing ring angle welding device provided by the invention not only has relatively high welding efficiency, is beneficial to improving the welding operation environment and reducing the labor intensity of operators, but also can avoid safety accidents during manual welding of the operators, so that the welding safety is improved.

Description

Technical Field

[0001] The present application relates to the technical field of steel pipe welding, and in particular to a steel pipe reinforcement ring corner welding device. Background Art

[0002] The pressure steel pipes used in water conservancy projects usually have a large diameter. In order to improve the strength of the pressure steel pipes, annular reinforcement ribs (or reinforcement rings) are welded around the outer circumference of the main body of the steel pipe.

[0003] In the related art, the welding operation between the reinforcing ring and the main body is usually performed manually using handheld welding equipment, which not only has low welding efficiency but also has certain safety hazards. Summary of the invention

[0004] In view of this, the purpose of the present application is to propose a steel pipe reinforcement ring corner welding device to at least partially solve the problem of low welding efficiency and potential safety hazards in manually welding reinforcement rings of pressure steel pipes.

[0005] Based on the above-mentioned purpose, the present application provides a steel pipe reinforcement ring corner welding device, the steel pipe includes a cylindrical main body and a reinforcement ring connected to the outer peripheral wall of the main body around the axis of the main body; the steel pipe reinforcement ring corner welding device includes: a bearing base, provided with a support module for supporting the main body, the support module includes a rotation drive unit for driving the steel pipe to rotate around the axis; a welding mechanism, including a support beam arranged above the main body and extending axially along the main body; the support beam is connected to a plurality of corner welding modules along the extension direction, each of the corner welding modules includes at least one welding unit, each of the welding units includes a welding head, and a welding drive assembly that drives the welding head to move in a vertical plane parallel to the axis of the steel pipe; a control unit, the control unit is electrically connected to the welding drive assembly, and the control unit is at least configured to drive the welding head to move between the main body and the reinforcement ring through the welding drive assembly.

[0006] Optionally, each of the welding drive components includes a transverse guide rail extending axially along the main body, the transverse guide rail is slidably connected to a first mounting plate, and a transverse telescopic cylinder for driving the first mounting plate is provided on one side of the transverse guide rail; the plate surface of the first mounting plate away from the transverse guide rail is connected to a longitudinal linear motor module, the first slide block of the longitudinal linear motor module is connected to an oblique linear motor module, and the second slide block of the oblique linear motor module is connected to the welding head.

[0007] Optionally, the second slider is connected to a support rod group, and the welding head is connected to the second slider through the support rod group.

[0008] Optionally, a guide wheel capable of abutting against the main body and / or the reinforcement ring is connected to the bottom of the longitudinal linear motor module.

[0009] Optionally, the guide wheel includes a first sub-wheel abutting against the outer peripheral wall of the main body; a vertical first guide longitudinal rod is connected to the bottom of the longitudinal linear motor module, the first guide longitudinal rod is connected to a guide bracket, and the guide bracket is connected to two first sub-wheels radially spaced apart along the main body.

[0010] Optionally, the guide bracket includes a guide plate connected to the first guide longitudinal rod, an adjusting transverse plate is fixedly connected to one side plate surface of the guide plate, a pitch plate rotatably connected to the guide plate is arranged below the adjusting transverse plate, the first sub-wheel is rotatably connected to the pitch plate, the adjusting transverse plate is threadedly connected to two adjusting bolts, the two adjusting bolts are distributed at radial intervals along the main body, and both are in contact with the pitch plate.

[0011] Optionally, the guide wheel includes a second sub-wheel abutting against the side wall of the reinforcement ring; the first guide longitudinal rod is connected to a first guide cross rod extending axially along the main body, and the first guide cross rod is rotatably connected to the second sub-wheel at one end away from the first guide longitudinal rod.

[0012] Optionally, the supporting beam is connected to at least one beam guide rail, and the extension direction of the beam guide rail is the same as the extension direction of the supporting beam; the corner welding module includes an adjustment bracket, and the adjustment bracket has a locking state fixedly connected to the supporting beam, and an adjustment state sliding along the beam guide rail.

[0013] Optionally, two welding units are connected to each of the adjustment brackets, and the two welding units are symmetrically arranged on opposite sides of the same reinforcement ring along the thickness direction.

[0014] Optionally, the steel pipe reinforcement ring corner welding device includes a gantry, the gantry includes a platform, and gantry pillars connected to both ends of the platform, the supporting beam is connected to the bottom of the platform, and the bearing base is located below the platform.

[0015] From the above, it can be seen that the control unit of the steel pipe reinforcement ring corner welding device provided by the present application can drive the welding head to automatically move between the main body to be welded and the reinforcement ring through the welding drive assembly, and automatically perform corner welding on the main body and the reinforcement ring through the welding head. At the same time, the self-rotation drive unit can drive the steel pipe to rotate, so as to move the welded area out of the position corresponding to the welding head, and move the unwelded area to the position corresponding to the welding head, thereby realizing the circumferential corner welding between the main body and the reinforcement ring. The steel pipe reinforcement ring corner welding device of the present application can continuously and automatically weld the main body and the reinforcement ring of the steel pipe. Compared with manual welding, it not only has higher welding efficiency, helps to improve the welding working environment, and reduces the labor intensity of operators, but also can avoid safety accidents caused by operators during manual welding, thereby improving welding safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a three-dimensional schematic diagram of a steel pipe reinforcement ring corner welding device according to an embodiment of the present application;

[0018] Figure 2 A partial three-dimensional schematic diagram of a steel pipe reinforcement ring corner welding device according to an embodiment of the present application

[0019] Figure 3 This is a front view schematic diagram of a steel pipe reinforcement ring corner welding device according to an embodiment of the present application;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of part A;

[0021] Figure 5 for Figure 3 A magnified schematic diagram of part B;

[0022] Figure 6 A three-dimensional schematic diagram of a welding unit of a steel pipe reinforcement ring corner welding device according to an embodiment of the present application;

[0023] Figure 7 Schematic diagram of the process of the steel pipe reinforcement ring corner welding method according to an embodiment of the present application.

[0024] Description of reference numerals:

[0025] 100, bearing base; 110, supporting module; 111, self-rotating driving unit; 112, supporting bracket; 113, supporting roller; 120, supporting plate; 130, limiting unit; 131, limiting rotating shaft; 132, limiting roller; 140, first moving seat;

[0026] 200, steel pipe; 210, main body; 220, reinforcement ring;

[0027] 300, guide rail;

[0028] 400, welding mechanism; 410, supporting beam; 420, corner welding module; 421, welding unit; 4211, welding head; 4212, welding drive assembly; 42121, transverse guide rail; 42122, first mounting plate; 42123, transverse telescopic cylinder; 42124, longitudinal linear motor module; 42125, first slider; 42126, oblique linear motor module; 42127, second slider; 42128, support rod group; 42128a, first support rod; 42128b, second support rod; 4213, guide wheel; 42131, first sub-wheel; 42132, second sub-wheel; 4214, first guide longitudinal rod; 4215, guide bracket; 42151, guide plate; 42152, adjustment cross plate; 42153, adjustment bolt; 42154, pitch plate; 4216, first guide cross rod; 422, adjustment bracket; 430, crossbeam guide rail;

[0029] 500, gantry; 510, platform; 520, gantry support. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0031] It should be noted that the relative arrangement of the components, the numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

[0032] At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0034] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0035] In view of this, if Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The embodiment of the present application provides a steel pipe reinforcing ring corner welding device, wherein the steel pipe 200 includes a cylindrical main body 210 and a reinforcing ring 220 connected to the outer peripheral wall of the main body 210 around the axis of the main body 210; the steel pipe reinforcing ring corner welding device includes: a bearing base 100, provided with a supporting module 110 for supporting the main body 210, the supporting module 110 includes a self-rotation driving unit 111 for driving the steel pipe 200 to rotate around the axis; a welding mechanism 400, including a welding mechanism 400 disposed above the main body 210 and along the axial direction of the main body 210 (such as Figure 1 , Figure 2 and Figure 3 A support beam 410 extending in the X direction (in the X direction) of the steel pipe 200; a plurality of corner welding modules 420 are connected to the support beam 410 along the extending direction, each corner welding module 420 includes at least one welding unit 421, each welding unit 421 includes a welding head 4211, and a welding drive assembly 4212 driving the welding head 4211 to move in a vertical plane parallel to the axis of the steel pipe 200; a control unit (not shown in the figure), the control unit is electrically connected to the welding drive assembly 4212, and the control unit is at least configured to drive the welding head 4211 to move between the main body 210 and the reinforcement ring 220 through the welding drive assembly 4212.

[0036] Exemplarily, the welding head 4211 is connected to a welding host and a gas source. The welding host is a metal active gas shielded arc welding host (or MAG welding host). The model of the welding host may be a NBC-600 suspended MAG welding host.

[0037] Exemplarily, the control unit may include a controller (eg, a PLC).

[0038] Exemplarily, the control unit may be a TNCS3.0 digital centralized control system.

[0039] Exemplarily, the steel pipe reinforcement ring corner welding device may also include a touch screen for realizing human-computer interaction, and the touch screen is electrically connected to the control unit. The operator can conveniently and quickly set, store, call and modify welding parameters and motion parameters through the touch screen, and the touch screen can also display the operating status of the steel pipe reinforcement ring corner welding device.

[0040] Exemplarily, a 24V low-voltage lighting electrical interface is provided at the welding head 4211 , which is used to set a lighting device (such as an LED lamp) at the welding head 4211 .

[0041] Exemplarily, the support module 110 may include a U-shaped support bracket 112, in which a support roller 113 is installed, and the outer circumferential wall of the support roller 113 abuts against the outer circumferential wall of the body 210. At this time, the axis of the support roller 113 and the axis of the body 210 are parallel to each other.

[0042] Exemplarily, two supporting modules 110 are provided and are symmetrically arranged along the axis of the main body 210 .

[0043] Exemplarily, the self-rotation driving unit 111 may include a motor drivingly connected to the supporting roller 113 , and configured to drive the supporting roller 113 to rotate, thereby driving the steel pipe 200 to rotate.

[0044] Exemplarily, the bearing base 100 includes a support plate 120 connected to the support module 110 and two limiting units 130 connected to the support plate 120, and the two limiting units 130 are respectively arranged on opposite sides of the reinforcement ring 220 along the axial direction of the main body 210. Each limiting unit 130 includes a limiting rotating shaft 131 connected to the support plate 120, and the limiting rotating shaft 131 is rotatably connected to a limiting roller 132, and the outer circumferential wall of the limiting roller 132 abuts against the side wall of the reinforcement ring 220. The support plate 120 can be welded to the support bracket 112, and the limiting rotating shaft 131 can be welded to the support plate 120. The steel pipe 200 can be effectively limited by the abutment of the limiting roller 132 and the reinforcement ring 220, so as to prevent the steel pipe 200 from moving along the axial direction of the main body 210 during the process of fillet welding. When the steel pipe 200 rotates, the limiting roller 132 abutting against the reinforcement ring 220 can also rotate accordingly. While the limiting roller 132 limits the steel pipe 200, it can also ensure that the friction between the limiting roller 132 and the reinforcement ring 220 is small, thereby avoiding obstruction to the rotation of the steel pipe 200.

[0045] It should be noted that the steel pipe 200 can be placed on the bearing base 100 by hoisting, that is, the reinforcement ring 220 of the steel pipe 200 will be placed between the two limiting units 130 from above the limiting units 130 .

[0046] It should be noted that before the steel pipe reinforcing ring corner welding device is used for welding, the reinforcing ring 220 and the main body 210 may have been welded at multiple welding points, that is, the relative position between the reinforcing ring 220 and the main body 210 is initially fixed by spot welding, but the connection strength between the two has not yet reached the process requirements, and it is necessary to perform corner welding to make the connection strength between the two reach the process requirements. The steel pipe reinforcing ring corner welding device provided in the embodiment of the present application is to perform corner welding on the main body 210 and the reinforcing ring 220.

[0047] Exemplarily, the supporting base 100 includes a first movable base 140 , the supporting module 110 is connected to the top surface of the first movable base 140 , the first movable base 140 can slide along the guide rail 300 , and the extension direction of the guide rail 300 can be the same as the axial direction of the main body 210 .

[0048] In this embodiment, the support beam 410 can be hoisted above the steel pipe 200, so that the welding mechanism 400 is located above the main body 210 as a whole. Before welding, each corner welding module 420 is moved to a position close to the reinforcement ring 220, and each corner welding module 420 corresponds to a reinforcement ring 220. Before welding starts, the control unit moves the welding head 4211 in each welding unit 421 to the corresponding main body 210 and reinforcement ring 220 through the welding drive component 4212. After the welding head 4211 reaches the specified position, the welding head 4211 is controlled to start corner welding the main body 210 and the reinforcement ring 220.

[0049] After the welding head 4211 welds at the current position for a preset time, the control unit can determine that the main body 210 and the reinforcement ring 220 at the current position have been welded. At this time, the self-rotation drive unit 111 can be started to drive the steel pipe 200 to rotate. During the self-rotation of the steel pipe 200, the welded area gradually moves away from the welding head 4211, and the adjacent unwelded area gradually moves toward the welding head 4211. After the self-rotation drive unit 111 drives the steel pipe 200 to rotate at a preset angle, the unwelded area moves to a specified position close to the welding head 4211, and the self-rotation drive unit 111 can stop driving the steel pipe 200 to continue welding the unwelded area through the welding head 4211. The above process is repeated until the steel pipe 200 completes one rotation. At this time, the welding head 4211 has moved a full circle relative to the main body 210, and the welding of all gaps between the reinforcement ring 220 and the main body 210 has been completed during the movement.

[0050] It should be noted that, according to the welding process requirements, the reinforcement ring 220 and the main body 210 can be fully welded or intermittently welded by controlling the welding time of the welding head 4211.

[0051] The steel pipe reinforcement ring corner welding device provided in the embodiment of the present application can drive the welding head 4211 to automatically move between the main body 210 to be welded and the reinforcement ring 220 through the welding drive component 4212, and automatically perform corner welding on the main body 210 and the reinforcement ring 220 through the welding head 4211. At the same time, the self-rotation drive unit 111 can drive the steel pipe 200 to rotate, so as to move the welded area out of the position corresponding to the welding head 4211, and move the unwelded area to the position corresponding to the welding head 4211, thereby realizing the circumferential corner welding between the main body 210 and the reinforcement ring 220. The steel pipe reinforcement ring corner welding device of this embodiment can continuously and automatically weld the main body 210 and the reinforcement ring 220 of the steel pipe 200. Compared with manual welding, it not only has higher welding efficiency, helps to improve the welding working environment, reduces the labor intensity of operators, but also can avoid safety accidents of operators during manual welding, thereby improving welding safety.

[0052] like Figure 5 and Figure 6 In some embodiments, each welding drive assembly 4212 includes a transverse guide rail 42121 extending axially along the main body 210, and the transverse guide rail 42121 is slidably connected to a first mounting plate 42122, and a transverse telescopic cylinder 42123 for driving the first mounting plate 42122 is provided on one side of the transverse guide rail 42121; the plate surface of the first mounting plate 42122 away from the transverse guide rail 42121 is connected to a longitudinal linear motor module 42124, and the first slider 42125 of the longitudinal linear motor module 42124 is connected to an oblique linear motor module 42126, and the second slider 42127 of the oblique linear motor module 42126 is connected to the welding head 4211.

[0053] Exemplarily, the radial cross-section of the transverse guide rail 300 may be circular.

[0054] Exemplarily, the transverse telescopic cylinder 42123 can be an electric telescopic cylinder or a pneumatic telescopic cylinder, and the transverse telescopic cylinder 42123 has an extendable or retractable telescopic rod, and the telescopic rod is connected to the first mounting plate 42122 so that the first mounting plate 42122 can move on the transverse guide rail 42121 as the telescopic rod is extended or retracted.

[0055] Exemplarily, the longitudinal linear motor module 42124 and the oblique linear motor module 42126 are both driven by stepper motors, which helps to improve the repeatability of the welding head 4211 and expand the swing speed adjustment range of the welding head 4211.

[0056] For example, the electrical connection wires or gas delivery pipes in the steel pipe reinforced ring corner welding device can be wired using a plastic drag wiring method, which not only helps to increase the service life of the entire machine, but also makes the overall appearance more beautiful, avoids entanglement of the connection wires during use, and improves safety.

[0057] by Figure 5 Taking the structure and direction shown as an example, the control element can drive the first mounting plate 42122 to move horizontally through the transverse telescopic cylinder 42123, so that the welding head 4211 is close to or away from the reinforcement ring 220 along the axial direction of the main body 210. The control element can drive the welding head 4211 to move in the vertical direction through the first slider 42125 of the longitudinal linear motor module 42124 on the first mounting plate 42122, so that the welding head 4211 is close to or away from the main body 210. The control element can drive the welding head 4211 to swing in the inclined direction through the second slider 42127 of the oblique linear motor module 42126 on the first slider 42125, so that the weld print width meets the welding process requirements.

[0058] Since the horizontal telescopic cylinder 42123 and the longitudinal linear motor module 42124 can respectively drive the welding head 4211 to move in the horizontal and vertical directions, the two can cooperate with each other to move the welding head 4211 to any position in the vertical plane, ensuring that the welding head 4211 can move to the welding position between the reinforcement ring 220 and the main body 210 that meets the welding process requirements. During the welding process, the oblique linear motor module 42126 can drive the welding head 4211 to swing. The larger the swing amplitude, the larger the width of the weld mark formed by the welding, which can meet different welding process requirements, thereby ensuring the welding quality and connection reliability between the main body 210 and the reinforcement ring 220.

[0059] like Figure 5 and Figure 6 In some embodiments, the second slider 42127 is connected to a support rod group 42128 , and the welding head 4211 is connected to the second slider 42127 through the support rod group 42128 .

[0060] Exemplarily, the support rod group 42128 may include at least two support rods connected to each other, and each support rod may be a circular tube.

[0061] Exemplarily, two support rods in support rod set 42128 can be connected to each other via a cross-type connecting clamp.

[0062] Exemplarily, the support rod group 42128 may include a first support rod 42128a perpendicular to the moving direction of the second slider 42127, and a second support rod 42128b perpendicular to the first support rod 42128a, and the end of the second support rod 42128b is connected to a clamp for clamping the welding head 4211.

[0063] By rotating different support rods in the support rod group 42128, the angle of the welding head 4211 can be adjusted to ensure that the angle between the welding head 4211 and the welding surface meets the welding process requirements, thereby ensuring the welding quality.

[0064] like Figure 5 and Figure 6 In some embodiments, the bottom of the longitudinal linear motor module 42124 is connected to a guide wheel 4213 that can abut against the main body 210 and / or the reinforcement ring 220.

[0065] Through the guide wheel 4213, the preset relative position between the welding drive assembly 4212 and the steel pipe 200 can be maintained during the rotation of the steel pipe 200. Accordingly, the welding head 4211 can be stably maintained between the reinforcement ring 220 and the main body 210, which helps to improve the welding quality.

[0066] like Figure 5 and Figure 6 In some embodiments, the guide wheel 4213 includes a first sub-wheel 42131 that abuts against the outer peripheral wall of the main body 210; the bottom of the longitudinal linear motor module 42124 is connected to a vertical first guide longitudinal rod 4214, and the first guide longitudinal rod 4214 is connected to a guide bracket 4215, and the guide bracket 4215 is connected to two first sub-wheels 42131 distributed radially along the main body 210.

[0067] When the steel pipe 200 rotates, as long as the first sub-wheel 42131 is in contact with the outer peripheral wall of the main body 210, even if the main body 210 has a certain ovality deviation, the preset distance between the welding head 4211 and the main body 210 can be maintained, which helps to improve the welding quality.

[0068] like Figure 5 and Figure 6 In some embodiments, the guide bracket 4215 includes a guide plate 42151 connected to the first guide longitudinal rod 4214, a side plate surface of the guide plate 42151 is fixedly connected to an adjusting transverse plate 42152, a pitch plate 42154 rotatably connected to the guide plate 42151 is arranged below the adjusting transverse plate 42152, the first sub-wheel 42131 is rotatably connected to the pitch plate 42154, the adjusting transverse plate 42152 is threadedly connected to two adjusting bolts 42153, the two adjusting bolts 42153 are distributed at intervals along the radial direction of the main body 210, and both are in contact with the pitch plate 42154.

[0069] Exemplarily, the guide plate 42151 is a vertically arranged plate structure, the adjusting cross plate 42152 can be a plate structure horizontally fixedly connected to the guide plate 42151, and the pitch plate 42154 is rotationally connected to the guide plate 42151 via a rotating shaft.

[0070] When the two adjusting bolts 42153 are rotated to increase the length of one of the adjusting bolts 42153 (hereinafter referred to as the first bolt) between the adjusting horizontal plate 42152 and the pitching plate 42154, and to reduce the length of the other adjusting bolt 42153 (hereinafter referred to as the second bolt) between the adjusting horizontal plate 42152 and the pitching plate 42154, the first bolt will press the pitching plate 42154 downward to rotate the pitching plate 42154, and the first sub-wheel 42131 under the first bolt will move downward, and the first sub-wheel 42131 under the second bolt will move upward accordingly. At this time, the two first sub-wheels 42131 can abut against the inclined surface at the same time.

[0071] When the length of the first bolt between the adjusting cross plate 42152 and the pitch plate 42154 is equal to the length of the second bolt between the adjusting cross plate 42152 and the pitch plate 42154, the two first sub-wheels 42131 have the same height, and the two first sub-wheels 42131 can abut against the horizontal plane at the same time.

[0072] Therefore, in this embodiment, the two first sub-wheels 42131 are arranged on the rotatable pitch plate 42154, so that the two first sub-wheels 42131 can abut against the horizontal plane and the inclined plane at the same time. No matter the outer peripheral wall of the main body 210 is located directly below the guide bracket 4215 or below the side, the first sub-wheels 42131 can abut against the outer peripheral wall of the main body 210, and at the same time, the adverse effect of the longitudinal seam excess height on the circumferential seam welding quality can be minimized.

[0073] like Figure 5 and Figure 6 In some embodiments, the guide wheel 4213 includes a second sub-wheel 42132 abutting against the side wall of the reinforcement ring 220; the first guide longitudinal rod 4214 is connected to a first guide cross rod 4216 extending axially along the main body 210, and the first guide cross rod 4216 is rotatably connected to the second sub-wheel 42132 at one end away from the first guide longitudinal rod 4214.

[0074] When the steel pipe 200 rotates, as long as the second sub-wheel 42132 is ensured to abut against the side wall of the reinforcement ring 220, the preset distance between the welding head 4211 and the reinforcement ring 220 can be maintained, and the welding head 4211 can adapt to the lateral (i.e., along the axial direction of the main body 210) drift of the reinforcement ring 220 and the assembly deviation of the reinforcement ring 220, which helps to improve the welding quality.

[0075] like Figure 2 and Figure 5As shown, in some embodiments, the supporting beam 410 is connected to at least one beam guide rail 430, and the extension direction of the beam guide rail 430 is the same as the extension direction of the supporting beam 410; the corner welding module 420 includes an adjustment bracket 422, and the adjustment bracket 422 has a locking state fixedly connected to the supporting beam 410, and an adjustment state sliding along the beam guide rail 430.

[0076] Exemplarily, the support beam 410 may be a rectangular tube structure, and there may be one beam guide rail 430 disposed on one of the side walls of the support beam 410, or there may be two beam guide rails 430, which are respectively disposed on one side wall and the adjacent top of the support beam 410. The support beam 410 of the rectangular tube structure can make the structure of the welding mechanism 400 compact, with strong rigidity and small downward deflection, so that the welding mechanism 400 has higher stability as a whole.

[0077] Exemplarily, the crossbeam guide rail 430 may be a linear guide rail, and the adjustment bracket 422 is connected to a slider of the linear guide rail.

[0078] Exemplarily, the longitudinal cross-section of the adjustment bracket 422 can be an inverted U-shape, the middle part of the inverted U-shape corresponds to the top of the supporting beam 410, and one of the side walls of the inverted U-shape is connected to the beam guide rail 430 to ensure that the adjustment bracket 422 can move smoothly along the beam guide rail 430.

[0079] Exemplarily, a locking member may be installed on the crossbeam guide rail 430 , and when the locking member is unlocked, the adjustment bracket 422 is in an adjustment state; when the locking member is locked, the adjustment bracket 422 is in a locked state.

[0080] Before controlling the welding drive assembly 4212 to drive the welding head 4211 to move, the adjustment bracket 422 can be switched to the adjustment state. At this time, the adjustment bracket 422 can be driven to slide along the crossbeam guide rail 430 to the top of the reinforcement ring 220 according to the distribution position of the reinforcement ring 220 on the main body 210. The welding unit 421 on the adjustment bracket 422 is now located on one side of the reinforcement ring 220 along the axial direction of the main body 210. Afterwards, the adjustment bracket 422 is switched to the locking state. At this time, the welding head 4211 is close to the reinforcement ring 220 and the main body 210. Then, the welding drive assembly 4212 is used to fine-tune the welding head 4211 so that the welding head 4211 is located between the reinforcement ring 220 and the main body 210, and then welding can be performed. This embodiment uses a slidably adjustable adjustment bracket 422, which can not only quickly pre-adjust the welding unit 421, but also increase the adjustment range of the welding drive assembly 4212 for the position of the welding head 4211, so that the steel pipe reinforcement ring corner welding device of this embodiment can be suitable for welding requirements of reinforcement rings 220 with various gaps.

[0081] like Figure 2 As shown, in some embodiments, each adjustment bracket 422 is connected to two welding units 421, and the two welding units 421 are symmetrically arranged on the same reinforcement ring 220 along the thickness direction (such as Figure 2 on opposite sides of the X direction).

[0082] The two welding units 421 can simultaneously perform fillet welding on the roots of both sides of the reinforcement ring 220 (ie, the position of the reinforcement ring 220 close to the main body 210), which helps to further improve the welding efficiency and shorten the welding period.

[0083] It should be noted that before moving the adjustment bracket 422, the welding mechanism 400 can be moved relative to the steel pipe 200 along the radial direction of the main body 210 so that a certain distance is maintained between the two welding units 421 and the reinforcement ring 220, thereby forming a space for the adjustment bracket 422 and the welding units 421 to move. After the adjustment bracket 422 is moved to the target position, the welding mechanism 400 can be moved close to the reinforcement ring 220 along the radial direction of the main body 210 so that the two welding units 421 on the same adjustment bracket 422 are respectively located on opposite sides of the corresponding reinforcement ring 220.

[0084] like Figure 1 and Figure 3 In some embodiments, the steel pipe reinforcement ring corner welding device includes a gantry 500, the gantry 500 includes a platform 510, and a gantry support 520 connected to the bottom of the platform 510, the supporting beam 410 is connected to the bottom of the platform 510, and the bearing base 100 is located below the platform 510.

[0085] Exemplarily, the platform 510 is a rectangular platform, and the gantry struts 520 are connected to the four corners of the rectangular platform.

[0086] Exemplarily, lifting ears are provided at both ends of the support beam 410 , and the support beam 410 is hoisted to the bottom of the platform 510 through the lifting ears.

[0087] The welding mechanism 400 is fixed to the bottom of the platform 510, and the steel pipe 200 to be welded is placed on the bearing base 100 below the platform 510. The bearing base 100 can drive the steel pipe 200 to move axially along the main body 210 below the platform 510. The gantry 500 can be used to position the welding mechanism 400 above the steel pipe 200 on the bearing base 100, so that the welding mechanism 400 can complete the fillet welding of the main body 210 and the reinforcement ring 220 of the steel pipe 200. At the same time, the platform 510 can also facilitate operators to supervise and maintain the welding mechanism 400, which helps to ensure the welding quality.

[0088] Based on the same inventive concept, corresponding to the steel pipe reinforcement ring corner welding device of any of the above embodiments, this embodiment also provides a steel pipe reinforcement ring corner welding method.

[0089] like Figure 7 The steel pipe reinforcement corner welding method provided in the embodiment of the present application adopts the steel pipe reinforcement corner welding device described in each of the above embodiments to weld the steel pipe 200. The steel pipe reinforcement corner welding method includes:

[0090] Step S100, moving the fillet welding module to a preset position close to the reinforcement ring.

[0091] The execution body of the steel pipe reinforcement ring corner welding method of this embodiment may be the control unit in the above embodiment.

[0092] An electric cylinder for driving the adjustment bracket 422 to move along the beam guide rail 430 can be installed on the support beam 410, and the control unit is electrically connected to the electric cylinder, so that according to the distribution of the reinforcement ring 220 on the main body 210, the adjustment bracket 422 can be driven by the electric cylinder to move the corner welding module 420 as a whole to a preset position close to the reinforcement ring 220 (for example, directly above the reinforcement ring 220), thereby completing the preliminary position adjustment of the welding head 4211.

[0093] Step S200: driving the welding head to between the main body and the reinforcement ring through the welding drive assembly.

[0094] The control unit drives the welding head 4211 to move between the main body 210 and the reinforcement ring 220 through the welding drive component 4212, that is, moves the welding head 4211 to a position where the main body 210 and the reinforcement ring 220 can be welded, thereby completing the precise position adjustment of the welding head 4211 and preparing for starting welding.

[0095] Step S300, controlling the welding head to start welding the main body and the reinforcement ring.

[0096] After the welding head 4211 moves to a position where welding can be performed, the control unit can control the welding head 4211 to start welding the main body 210 and the reinforcement ring 220 so that the reinforcement ring 220 and the main body 210 are reliably fixedly connected.

[0097] For example, during welding, the control unit can drive the welding head 4211 to swing at a preset amplitude and speed through the oblique linear motor module 42126, so that the weld width meets the welding process requirements. The stroke of the second slider 42127 of the oblique linear motor module 42126 can be 100 mm, that is, the swing amplitude of the welding head 4211 can be ±50 mm, the moving speed of the second slider 42127 (that is, the swing speed of the welding head 4211) can be 0 to 2000 mm / min, and the dwell time after swinging can be 0 to 10S.

[0098] Step S400, after welding for a preset time, the steel pipe is driven to rotate around the axis by the self-rotation drive unit so that the welding head welds along the circumference of the main body.

[0099] When the welding head 4211 starts welding at the current position, the control unit can start timing. When the welding is performed for a preset time (the preset time can be 1 to 10 seconds, such as 2S, 5S or 10S), it can be determined that the welding of the area has been completed. The control unit can drive the steel pipe 200 to rotate around the axis of the main body 210 through the self-rotation drive unit 111, so that the welded area gradually moves away from the welding head 4211, and the adjacent unwelded area gradually approaches the welding head 4211, that is, the welding head 4211 gradually moves from the welded area to the unwelded area along the circumference of the main body 210, so as to continue welding the unwelded area.

[0100] The steel pipe reinforcement ring corner welding method of the embodiment of the present application can perform continuous and automatic corner welding on the main body 210 and the reinforcement ring 220 of the steel pipe 200 by adopting a steel pipe reinforcement ring corner welding device. Compared with manual welding, it not only has higher welding efficiency, helps to improve the welding working environment, and reduce the labor intensity of operators, but also can avoid safety accidents caused by operators during manual welding, thereby improving welding safety.

[0101] In some embodiments, step S200 includes:

[0102] Step S210: driving the first mounting plate to move to a first preset position via the transverse telescopic cylinder.

[0103] Exemplarily, the stroke of the first mounting plate 42122 driven by the transverse telescopic cylinder 42123 may be 150 mm.

[0104] Specifically, step S210 includes:

[0105] The first mounting plate 42122 is driven to move by the transverse telescopic cylinder 42123 until the second sub-wheel 42132 abuts against the side wall of the reinforcement ring 220 .

[0106] A sensor (such as a distance sensor or a force sensor) may be installed on the second sub-wheel 42132, and the control unit controls the telescopic rod of the transverse telescopic cylinder 42123 to extend outward so that the second sub-wheel 42132 gradually approaches the reinforcement ring 220. When the second sub-wheel 42132 abuts against the side wall of the reinforcement ring 220, the sensor on the second sub-wheel 42132 is triggered (when the sensor is a distance sensor, the sensor can be triggered after the distance between the sensor and the side wall of the reinforcement ring 220 reaches a preset distance; when the sensor is a force sensor, after the second sub-wheel 42132 abuts against the reinforcement ring 220, the second sub-wheel 42132 will be squeezed by the reinforcement ring 220, and the sensor can be triggered). After receiving the trigger signal from the sensor, the control unit determines that the first mounting plate 42122 moves to the first preset position, and the control unit drives the telescopic rod of the transverse telescopic cylinder 42123 to stop moving.

[0107] When the steel pipe 200 rotates, as long as the second sub-wheel 42132 is ensured to abut against the side wall of the reinforcement ring 220, the preset distance between the welding head 4211 and the reinforcement ring 220 can be maintained, and the welding head 4211 can adapt to the lateral (i.e., along the axial direction of the main body 210) drift of the reinforcement ring 220 and the assembly deviation of the reinforcement ring 220, which helps to improve the welding quality.

[0108] Step S220: driving the oblique linear motor module to move to a second preset position via the longitudinal linear motor module, so that the welding head moves between the main body and the reinforcement ring.

[0109] Exemplarily, the stroke of the first slider 42125 of the longitudinal linear motor module 42124 can be 200 mm.

[0110] Specifically, step S220 includes:

[0111] The oblique linear motor module 42126 is driven to move by the longitudinal linear motor module 42124 until the first sub-wheel 42131 abuts against the outer peripheral wall of the main body 210 .

[0112] A sensor (such as a distance sensor or a force sensor) may be installed on the first sub-wheel 42131, and the control unit controls the first slider 42125 of the longitudinal linear motor module 42124 to move downward so that the first sub-wheel 42131 gradually approaches the outer peripheral wall of the main body 210. When the first sub-wheel 42131 abuts against the outer peripheral wall of the main body 210, the sensor on the first sub-wheel 42131 is triggered (the triggering method of the sensor on the first sub-wheel 42131 is similar to the triggering method of the sensor on the second sub-wheel 42132, which will not be repeated here). After receiving the trigger signal from the sensor, the control unit determines that the oblique linear motor module 42126 moves to the second preset position, and the control unit drives the first slider 42125 of the longitudinal linear motor module 42124 to stop moving. At this time, the welding head 4211 is located between the main body 210 and the reinforcement ring 220.

[0113] When the steel pipe 200 rotates, as long as the first sub-wheel 42131 is in contact with the outer peripheral wall of the main body 210, even if the main body 210 has a certain ovality deviation, the preset distance between the welding head 4211 and the main body 210 can be maintained, which helps to improve the welding quality.

[0114] It should be noted that at least step S210 and step S220 can be switched in sequence according to the actual structure of the steel pipe 200 (eg, the height of the reinforcement ring 220 ).

[0115] Step S500, determining the operating state of the steel pipe reinforcement ring corner welding device according to a preset cycle.

[0116] When the welding head 4211 welds the main body 210 and the reinforcement ring 220, the control unit can regularly determine the operating status of the steel pipe reinforcement ring corner welding device according to a preset cycle, such as every five seconds or every ten seconds.

[0117] Specifically, step S500 includes:

[0118] Step S510, collecting the welding parameters at the current moment, and determining whether the welding parameters are abnormal.

[0119] Specifically, the welding parameters include at least one of welding current, welding voltage, welding speed and shielding gas flow rate.

[0120] The control unit collects the welding parameters at the current moment through the circuit elements or sensors set in the steel pipe reinforcement ring corner welding device. After collecting the welding parameters, the control unit can judge whether there is any abnormality in the welding parameters.

[0121] In response to the welding parameters being normal, it is determined that the operating state of the steel pipe reinforcement ring corner welding device is a normal state.

[0122] Taking welding current as an example, the control unit stores a safety threshold of welding current in advance. After the control unit collects the welding current at the current moment, it will compare the welding current with the pre-stored safety threshold of welding current. When the welding current does not exceed the safety threshold, it is determined that the welding current is normal, and then the operation state of the steel pipe reinforcement ring corner welding device is determined to be normal.

[0123] In response to the welding parameter being abnormal, it is determined that the operating state of the steel pipe reinforcement ring corner welding device is an abnormal state.

[0124] However, if the welding current at the current moment exceeds the safety threshold, the welding current is determined to be abnormal, and further the operating state of the steel pipe reinforcement ring corner welding device is determined to be abnormal.

[0125] Step S330: in response to the operating state being a normal state, controlling the welding head to weld the main body and the reinforcement ring.

[0126] When the control unit determines that the operation state of the steel pipe reinforcement ring corner welding device is normal, it can control the welding head 4211 to continue welding the main body 210 and the reinforcement ring 220 .

[0127] Step S330': in response to the operating state being an abnormal state, controlling the welding head to stop welding and sending an alarm message.

[0128] When the control unit determines that the operating state of the steel pipe reinforcement ring corner welding device is abnormal, the control unit immediately controls the welding head 4211 to stop welding, and sends an alarm message through sound or image to remind the operator to handle it and reduce the risk of safety accidents.

[0129] Exemplarily, before step S100, the following steps may also be included:

[0130] Step S10, receiving preset welding parameters, and determining whether the preset welding parameters are abnormal.

[0131] Before welding begins, the operator can input preset welding parameters into the control unit. After receiving the preset welding parameters, the control unit can determine whether there is any abnormality in the preset welding parameters.

[0132] Step S20, in response to the preset welding parameters being normal and receiving the welding start instruction, responding to the welding start instruction.

[0133] Exemplarily, the steel pipe reinforcement ring corner welding device may also include a human-machine interaction terminal such as a touch screen. The touch screen may display a virtual start button, and the operator may send a welding start instruction to the control unit by triggering the start button.

[0134] Still taking the welding current as an example, the control unit stores a safety threshold of the welding current in advance. After receiving the welding current in the preset welding parameters (hereinafter referred to as the preset welding current), the control unit will compare the preset welding current with the safety threshold of the pre-stored welding current. When the preset welding current does not exceed the safety threshold, it is determined that the preset welding current is normal. After receiving the welding start instruction, the control unit can control the welding head 4211 to perform welding according to the preset welding current.

[0135] Step S30, in response to the presence of an abnormality in the preset welding parameters and receiving a welding start instruction, prohibiting the response to the welding start instruction.

[0136] When the preset welding current exceeds the safety threshold, the preset welding current is determined to be abnormal, and the control unit no longer controls the welding head 4211 to weld after receiving the welding start instruction, so that the steel pipe reinforcement ring corner welding device remains in a standby state. This can avoid safety accidents caused by welding according to abnormal preset welding parameters, help improve welding safety, and also help ensure welding quality.

[0137] In some embodiments, the steel pipe reinforcement ring fillet welding method further includes:

[0138] Step S600, after the steel pipe rotates around the axis for one circle, the welding head is controlled to stop welding.

[0139] After the steel pipe 200 completes one rotation, the welding head 4211 has moved one full circle relative to the main body 210, and has completed the welding of all gaps between the current reinforcement ring 220 and the main body 210 during the movement.

[0140] Step S700, driving the welding head to between the next reinforcement ring and the main body through the welding drive assembly.

[0141] Before welding begins, the operator can input the corresponding positions of multiple reinforcement rings 220 that need to be welded into the control unit in advance. After completing the welding of one of the reinforcement rings 220 and the main body 210, the control unit can automatically drive the welding head 4211 to move to between the next unwelded reinforcement ring 220 and the main body 210 through the welding drive component 4212, and perform the welding operation again through the above steps until all the reinforcement rings 220 are welded to the main body 210.

[0142] In some embodiments, the steel pipe reinforcement ring corner welding method further includes: sending welding parameters or welding head coordinate information.

[0143] During the welding process, the control unit can send the collected welding parameters or welding head 4211 coordinate information to a device such as a display screen to display it to the operator through the display screen so that the operator can understand the operating status of the steel pipe reinforcement ring corner welding device.

[0144] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0145] The various embodiments in the present application are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0146] The description of the present application is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application and thus design various embodiments with various modifications suitable for specific purposes.

[0147] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0148] Although the present application has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0149] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the present application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the protection scope of the present application.

Claims

1. A steel pipe reinforcement ring corner welding device, characterized in that: The steel pipe comprises a cylindrical main body and a reinforcing ring connected to the outer peripheral wall of the main body around the axis of the main body; the steel pipe reinforcing ring corner welding device comprises: A bearing base, provided with a supporting module for supporting the main body, wherein the supporting module includes a rotation driving unit for driving the steel pipe to rotate around an axis; The welding mechanism comprises a supporting crossbeam disposed above the main body and extending axially along the main body; the supporting crossbeam is connected with a plurality of fillet welding modules along the extending direction, each of the fillet welding modules comprises at least one welding unit, each of the welding units comprises a welding head, and a welding driving assembly driving the welding head to move in a vertical plane parallel to the axis of the steel pipe; A control unit, wherein the control unit is electrically connected to the welding drive assembly, and the control unit is at least configured to drive the welding head to move between the main body and the reinforcement ring through the welding drive assembly.

2. The steel pipe reinforcement ring fillet welding device according to claim 1, characterized in that: Each of the welding drive assemblies comprises a transverse guide rail extending along the axial direction of the main body, the transverse guide rail is slidably connected with a first mounting plate, and a transverse telescopic cylinder for driving the first mounting plate is arranged on one side of the transverse guide rail; The plate surface of the first mounting plate away from the transverse guide rail is connected to a longitudinal linear motor module, the first slider of the longitudinal linear motor module is connected to an oblique linear motor module, and the second slider of the oblique linear motor module is connected to the welding head.

3. The steel pipe reinforcement ring fillet welding device according to claim 2, characterized in that: The second slider is connected to a support rod group, and the welding head is connected to the second slider through the support rod group.

4. The steel pipe reinforcement ring fillet welding device according to claim 2, characterized in that: The bottom of the longitudinal linear motor module is connected to a guide wheel capable of abutting against the main body and / or the reinforcement ring.

5. The steel pipe reinforcement ring fillet welding device according to claim 4, characterized in that: The guide wheel comprises a first sub-wheel abutting against the outer peripheral wall of the main body; A vertical first guide longitudinal rod is connected to the bottom of the longitudinal linear motor module, the first guide longitudinal rod is connected to a guide bracket, and the guide bracket is connected to two first sub-wheels spaced apart along the radial direction of the main body.

6. The steel pipe reinforcement ring fillet welding device according to claim 5, characterized in that: The guide bracket includes a guide plate connected to the first guide longitudinal rod, a side plate surface of the guide plate is fixedly connected to an adjusting transverse plate, a pitch plate rotatably connected to the guide plate is arranged below the adjusting transverse plate, the first sub-wheel is rotatably connected to the pitch plate, the adjusting transverse plate is threadedly connected to two adjusting bolts, the two adjusting bolts are distributed at intervals along the radial direction of the main body, and both abut against the pitch plate.

7. The steel pipe reinforcement ring fillet welding device according to claim 5, characterized in that: The guide wheel comprises a second sub-wheel abutting against the side wall of the reinforcement ring; The first guide longitudinal rod is connected to a first guide cross rod extending axially along the main body, and one end of the first guide cross rod away from the first guide longitudinal rod is rotatably connected to the second sub-wheel.

8. The steel pipe reinforcement ring fillet welding device according to claim 1, characterized in that: The supporting crossbeam is connected to at least one crossbeam guide rail, and the extension direction of the crossbeam guide rail is the same as the extension direction of the supporting crossbeam; The fillet welding module includes an adjustment bracket having a locking state in which the adjustment bracket is fixedly connected to the supporting crossbeam, and an adjustment state in which the adjustment bracket slides along the crossbeam guide rail.

9. The steel pipe reinforcement ring fillet welding device according to claim 8, characterized in that: Each of the adjustment brackets is connected to two of the welding units, and the two welding units are symmetrically arranged on opposite sides of the same reinforcement ring along the thickness direction.

10. The steel pipe reinforcement ring fillet welding device according to claim 1, characterized in that: The steel pipe reinforcement ring corner welding device comprises a gantry, which comprises a platform and gantry pillars connected to both ends of the platform, the supporting beam is connected to the bottom of the platform, and the bearing base is located below the platform.

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