Welding device

Abstract

The invention provides a welding device. The welding device comprises a rack base; the bearing assembly is arranged on the rack base, the bearing assembly comprises a first bearing part and a second bearing part, and the second bearing part is rotatably arranged around the first bearing part; the bottom support assembly, the movable assembly and the welding gun assembly are arranged on the first bearing part, and the bottom support assembly is used for fixing a flange; the movable assembly comprises a jacking piece, the jacking piece is rotatably arranged in the first direction and the second direction, the jacking piece is movably arranged in the third direction, and one end of the bent pipe is jacked through the jacking piece so that the other end of the bent pipe can abut against the flange; the welding gun assembly is arranged on the second bearing piece and used for rotating around the flange and welding a gap between the bent pipe and the flange. Wherein the first direction, the second direction and the third direction are perpendicular to one another. The technical problem that in the prior art, after a bent pipe and a flange are clamped through a simple tool, manual welding is conducted, and the production efficiency is low is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a welding device. BACKGROUND

[0002] In the field of automobile manufacturing, especially in the processing of exhaust system pipe fittings, the traditional pipe bending flange welding technology mainly relies on the clamping cooperation of simple tooling and manual welding operation. Although this method can meet the basic welding needs to some extent, its inherent limitations are increasingly prominent, becoming a key factor restricting production efficiency and product quality.

[0003] Manual welding has the problem of fatigue accumulation affecting welding precision and quality, thereby causing welding defects such as pores, slag inclusion, incomplete fusion, and deformation in the weld. These defects not only weaken the structural strength of the product, but also can damage its sealing performance, ultimately affecting the service life and safety of the product. In the manual welding mode, the production rhythm is difficult to control, and the overall production efficiency is limited. The welding operation is intensive, and the labor load is high. Especially in harsh working environments such as high temperature, dust, and strong light, the working conditions of welders are harsh, and there are many safety hazards. This not only increases the labor cost, but also limits the production capacity improvement of enterprises. Moreover, this welding process lacks automation and standardization support. Each welding needs to be completed independently by the operator, and it is difficult to form a unified production standard, so it is difficult to effectively control each link in the production process, resulting in low production efficiency and difficulty in realizing large-scale and batch production. SUMMARY

[0004] The main purpose of the present application is to provide a welding device to solve the technical problem of low production efficiency in the prior art by clamping the pipe and flange with simple tooling and then manually welding.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a welding device is provided, comprising: a rack base; a bearing assembly arranged on the rack base, the bearing assembly comprising a first bearing member and a second bearing member, the second bearing member being rotatably arranged around the first bearing member; a bottom support assembly, a movable assembly and a welding gun assembly, the bottom support assembly being arranged on the first bearing member and being used for fixing the flange; at least part of the movable assembly is fixed relative to the rack base, the movable assembly comprising a jacking member, the jacking member being rotatably arranged around a first direction and a second direction respectively, and the jacking member being movably arranged along a third direction, so as to adjust the jacking member to be moved to one end of the jacking pipe, so that the other end of the jacking pipe abuts against the flange; the welding gun assembly is arranged on the second bearing member, so as to rotate around the flange and weld the gap between the jacking pipe and the flange; wherein the first direction, the second direction and the third direction are arranged perpendicularly to each other.

[0006] Further, the bottom support assembly comprises a mounting base arranged on the first bearing member, a guide member arranged on the mounting base, and a flange arranged on at least part of the guide member; two clamping structures movably arranged on the mounting base in a direction of approaching or moving away from each other, the clamping structure comprising a supporting member for supporting and connecting with the flange, and an abutting member rotatably arranged for abutting with the outer wall of the flange to clamp the flange.

[0007] Further, two mounting grooves are oppositely arranged on the mounting base, the guide member is located between the two mounting grooves, at least part of the supporting member is located in the mounting groove and is slidably arranged, the top of the supporting member is provided with a connecting hole, and the flange and the connecting hole are respectively penetrated by a connecting member to connect the flange with the supporting member; the clamping structure further comprises a first driving member arranged on one side of the supporting member, and the abutting member is connected with the output end of the first driving member to drive the abutting member to rotate to abut with the outer wall of the flange.

[0008] Further, the clamping structure further comprises a fixed plate located at the opening of the mounting groove and connected with the mounting base, a movable rod penetrating the fixed plate and threadedly connected with the fixed plate, and a movable block located in the mounting groove and slidably arranged, one end of the movable rod penetrating the movable block and threadedly connected with the movable block, and the supporting member is connected with the movable block to drive the movable block to move the supporting member by rotating the movable rod.

[0009] Further, the adjusting assembly comprises an adjusting structure comprising a connecting head, a universal head, an elbow and an adjusting plate, the connecting head is fixed relative to the rack base, the universal head is rotatably connected with the connecting head around a first direction, and the adjusting plate is rotatably connected with the universal head around a second direction through the elbow; a tightening structure arranged on the adjusting plate, and a tightening member connected with the tightening structure for driving the tightening member to move along a third direction to one end of the elbow pipe.

[0010] Further, the tightening structure comprises a fixed seat arranged on the adjusting plate, and a second driving member arranged on the fixed seat, the output end of the second driving member is connected with the tightening member through a guide rod to drive the tightening member to move along the third direction; the tightening member comprises a first tightening part for extending into the elbow pipe and a second tightening part protruding from the outer edge of the first tightening part and abutting with the pipe opening of the elbow pipe; a limiting member connected with the fixed seat, the limiting member is provided with a limiting groove, and one end of the elbow pipe is located in the limiting groove.

[0011] Further, the welding gun assembly comprises a mounting bracket arranged on the second carrier, a mounting piece movably arranged on the mounting bracket in the vertical direction, the mounting piece being rotatably arranged, and a third driving component arranged on the mounting piece; and a welding gun structure movably arranged relative to the mounting piece, the welding gun structure comprising a welding gun component, a cross adjustment mechanism and a mounting plate, the mounting plate being connected with an output end of the third driving component, and the welding gun component being arranged on the mounting plate through the cross adjustment mechanism.

[0012] Further, the carrier assembly further comprises a bottom plate arranged on the rack base, a mounting shaft, two ends of the mounting shaft being connected with the bottom plate and the first carrier respectively, a bearing structure, the bearing structure being sleeved on the mounting shaft and being rotatably arranged, the second carrier being connected with the bearing structure and being located below the first carrier, and a fourth driving component arranged on the bottom plate, a first gear being sleeved on the bearing structure, the first gear being connected with a bottom portion of the second carrier, and an output end of the fourth driving component being provided with a second gear, the first gear and the second gear being meshingly connected.

[0013] Further, the welding device further comprises a stand movably arranged on the rack base in the direction of approaching or moving away from the carrier assembly, an adapter and a positioning assembly, the positioning assembly being arranged on the stand, the adapter being detachably connected with the positioning assembly, the adapter being provided with a mounting portion, and the adapter being connected with the movable assembly through the mounting portion.

[0014] Further, the adapter is provided with a mounting hole, a guide sleeve being arranged in the mounting hole, and the positioning assembly comprises a positioning block arranged on the stand, the positioning block being provided with a positioning groove, one end of the adapter being located in the positioning groove, a positioning piece, a through hole being arranged on a groove bottom wall of the positioning groove, one end of the positioning piece being connected with the stand and at least part of the positioning piece being arranged in the through hole, the other end of the positioning piece being connected with the guide sleeve in a matched mode, and two pressing blocks being oppositely arranged on the positioning block, the pressing blocks being rotatably arranged to press the adapter.

[0015] In one aspect of the technical scheme of the present application, a welding device is provided, which comprises a rack base, a carrier assembly, a bottom support assembly, a movable assembly and a welding gun assembly, the carrier assembly being arranged on the rack base, the carrier assembly comprising a first carrier and a second carrier, the second carrier being rotatably arranged around the first carrier, the bottom support assembly being arranged on the first carrier and being used for fixing a flange, at least part of the movable assembly being fixed relative to the rack base, the movable assembly comprising a pressing piece, the pressing piece being rotatably arranged around a first direction and a second direction, the pressing piece being movably arranged along a third direction, so that the pressing piece is adjusted to be located at one end of a bent pipe to make the other end of the bent pipe abut against the flange, and the welding gun assembly being arranged on the second carrier to rotate around the flange and weld a gap between the bent pipe and the flange, wherein the first direction, the second direction and the third direction are arranged perpendicularly to each other.

[0016] Because the pressing part can not only rotate freely around two mutually perpendicular directions, but also can move linearly along the third direction, no matter the angle of the elbow pipe, the pressing part can find the best position to press the one end of the elbow pipe, so that the other end is tightly connected with the flange. This multi-dimensional adjustment capability greatly enhances the adaptability of the device to different specifications of elbow pipe, realizes the rapid change type, saves the production preparation time. And the welding gun assembly is arranged on the rotatable second bearing part, which can rotate 360° around the flange for welding, thereby ensuring the full coverage and uniformity of the weld, greatly improving the welding precision, and reducing the common quality problems such as uneven weld and incomplete fusion in traditional manual welding.

[0017] By introducing the automatic or semi-automatic welding process, combined with the bearing assembly, the bottom support assembly, the movable assembly and the welding gun assembly, the quality fluctuation problem of the weld caused by the different technical levels of the operators, the fatigue influence and the environmental interference in the traditional manual welding process is effectively overcome, and the welding consistency and product reliability are significantly improved. Further, the technical problem of low production efficiency in the prior art by clamping the elbow pipe and the flange with a simple tool and then manually welding is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the application, explain the application. The detailed description of the application and its illustrations serve to explain the application without imposing undue limitation on the application. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure from a first perspective is shown according to the embodiment of the welding device of the present application;

[0020] Figure 2 A schematic diagram of the overall structure from a second perspective is shown according to the embodiment of the welding device of the present application;

[0021] Figure 3 A schematic diagram of the structure of the bottom support assembly is shown according to the embodiment of the welding device of the present application;

[0022] Figure 4 An exploded view of the bottom support assembly is shown according to the embodiment of the welding device of the present application;

[0023] Figure 5 A schematic diagram of the structure of the welding gun assembly is shown according to the embodiment of the welding device of the present application;

[0024] Figure 6 A schematic diagram of the structure of the bearing assembly is shown according to the embodiment of the welding device of the present application;

[0025] Figure 7An exploded view of a bearing assembly provided by an embodiment of the welding device according to the present application is shown;

[0026] Figure 8 A structural schematic view of an adjusting structure provided by an embodiment of the welding device according to the present application is shown;

[0027] Figure 9 A structural schematic view of a clamping structure provided by an embodiment of the welding device according to the present application is shown;

[0028] Figure 10 A structural schematic view of a positioning assembly provided by an embodiment of the welding device according to the present application is shown;

[0029] Figure 11 A structural schematic view of an adapter provided by an embodiment of the welding device according to the present application is shown.

[0030] Among the above drawings, the following reference signs are included:

[0031] 1, flange; 2, elbow;

[0032] 10, rack base; 11, stand; 12, adapter; 120, mounting portion; 121, mounting hole; 122, guide sleeve;

[0033] 20, bearing assembly; 21, first bearing member; 22, second bearing member; 23, bottom plate; 24, mounting shaft; 25, bearing structure; 26, fourth driving component; 27, first gear; 28, second gear;

[0034] 30, bottom support assembly; 31, mounting seat; 32, guide member; 33, clamping structure; 330, support member; 331, abutting member; 332, connecting hole; 333, fixed plate; 334, movable rod; 335, movable block; 34, mounting groove; 35, first driving component;

[0035] 40, movable assembly; 41, clamping member; 410, first clamping portion; 411, second clamping portion; 42, adjusting structure; 420, connecting head; 421, universal head; 422, elbow; 423, adjusting plate; 43, clamping structure; 430, fixed seat; 431, second driving component; 432, guide rod; 433, limiting member; 434, limiting groove;

[0036] 50, welding gun assembly; 51, mounting bracket; 52, mounting member; 53, third driving component; 54, welding gun structure; 540, welding gun component; 541, cross adjusting mechanism; 542, mounting plate;

[0037] 60, positioning assembly; 61, positioning block; 610, positioning groove; 611, through hole; 62, positioning member; 63, pressing block. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To address the low production efficiency of manual welding of bent pipes and flanges using simple tooling in existing technologies, this invention provides a welding device.

[0040] Please refer to Figures 1 to 11 As shown, one aspect of the technical solution of the present invention provides a welding apparatus, including a frame base 10, a support assembly 20, a base support assembly 30, a movable assembly 40, and a welding torch assembly 50. The support assembly 20 is disposed on the frame base 10 and includes a first support member 21 and a second support member 22, the second support member 22 being rotatably disposed around the first support member 21. The base support assembly 30 is disposed on the first support member 21 and is used to fix a flange 1. At least a portion of the movable assembly 40 is fixed relative to the frame base 10. The movable assembly 40 includes a clamping member 41, the clamping member 41 being rotatably disposed around a first direction and a second direction, and the clamping member 41 being movable along a third direction, so that by adjusting the clamping member 41, one end of the bent pipe 2 is clamped so that the other end of the bent pipe 2 abuts against the flange 1. The welding torch assembly 50 is disposed on the second support member 22 and is used to rotate around the flange 1 and weld the gap between the bent pipe 2 and the flange 1. The first direction, the second direction, and the third direction are arranged perpendicular to each other.

[0041] Because the clamping member 41 can not only rotate freely around two mutually perpendicular directions, but also move linearly along a third direction, it can find the optimal position to clamp one end of the bend 2 regardless of the angle of the bend 2, ensuring that the other end is tightly connected to the flange 1. This multi-dimensional adjustment capability greatly enhances the adaptability of the device to bends 2 of different specifications, enabling rapid changeover and saving production preparation time. Furthermore, the welding torch assembly 50 is mounted on the rotatable second support member 22, allowing it to rotate 360° around the flange 1 for welding. This ensures complete coverage and uniformity of the weld, significantly improving welding accuracy and reducing quality problems such as uneven welds and incomplete fusion common in traditional manual welding.

[0042] By introducing an automated or semi-automated welding process, combined with the carrier assembly 20, the bottom support assembly 30, the movable assembly 40, and the welding gun assembly 50, the quality fluctuation problem of the weld caused by the technical level of the operator, fatigue, and environmental interference in the traditional manual welding process is effectively overcome, and the welding consistency and product reliability are significantly improved. Further, the technical problem of low production efficiency in the prior art by clamping the elbow 2 and the flange 1 with a simple tool and then manually welding is solved.

[0043] Moreover, by achieving precise control during the welding process, the weld is formed with an attractive appearance and a significantly reduced defect rate, thereby significantly improving the product pass rate and overall production stability. The automated welding system can operate continuously and efficiently, significantly shortening the single-piece welding cycle, improving overall production efficiency, and achieving large-scale and batch production. At the same time, the dependence on high-skilled welders is effectively reduced, and the automated welding device has stronger adaptability and tolerance in harsh working environments (such as high temperature, dust, strong light, and narrow space), which can replace manual work to complete high-risk and high-intensity welding tasks, ensure work safety, improve employee working conditions, and realize the humanization and intelligentization upgrade of the production environment.

[0044] In the present embodiment, the bottom support assembly 30 includes a mounting seat 31 and two clamping structures 33, the mounting seat 31 is arranged on the first carrier 21, the mounting seat 31 is provided with a guide 32, and the flange 1 is sleeved on at least part of the guide 32; the two clamping structures 33 are movably arranged on the mounting seat 31 in the direction of relatively approaching or moving away, the clamping structure 33 includes a support 330 and an abutting piece 331, the support 330 is used for supporting and connecting with the flange 1, and the abutting piece 331 is rotatably arranged to abut with the outer peripheral wall of the flange 1 to clamp the flange 1.

[0045] The guide 32 arranged on the mounting seat 31 can provide a central reference for the flange 1, ensuring the correct position and posture of the flange 1 before welding. This precise guiding mechanism is the basis for ensuring the quality of the weld and the consistency of the product. Under the guidance of the guide 32, the flange 1 can be easily and accurately sleeved thereon, reducing the welding deviation caused by inaccurate positioning.

[0046] The clamping structure 33 includes a support 330 and an abutting piece 331, which can move in the direction of relatively approaching or moving away, and through the rotatable design of the abutting piece 331, it is in close contact with the outer peripheral wall of the flange 1, realizing the all-around clamping of the flange 1. This not only ensures the stability of the flange 1 during welding, but also through the rotation of the abutting piece 331, it can adapt to flanges 1 of different shapes and sizes, enhancing the versatility and adaptability of the device.

[0047] It can be seen that through the accurate positioning and stable clamping function of the base support assembly 30, the preparation time before welding and the correction work of the flange 1 are reduced, so that the welding operation can start quickly and the overall production cycle is effectively shortened, greatly simplifying the work flow of the operator. Not only solves the problem of difficult positioning and unstable clamping of the flange 1 in traditional welding, but also promotes the automation and standardization of welding operation through its efficient positioning and clamping function, thereby improving the welding quality and production efficiency and reducing the labor cost.

[0048] In the present embodiment, two mounting grooves 34 are oppositely arranged on the mounting seat 31, the guide piece 32 is located between the two mounting grooves 34, and at least part of the support piece 330 is slidably arranged in the mounting groove 34. The top of the support piece 330 is provided with a connecting hole 332, and a connecting piece is respectively threaded on the flange 1 and the connecting hole 332, so that the flange 1 is connected with the support piece 330; the clamping structure 33 further comprises a first driving part, and a first driving part 35 is arranged on one side of the support piece 330. The abutting piece 331 is connected with the output end of the first driving part 35, so that the first driving part 35 drives the abutting piece 331 to rotate to abut against the outer peripheral wall of the flange 1. Wherein, the first driving part 35 is a motor or other components, the connecting hole 332 is a threaded hole, and the connecting piece is a bolt.

[0049] The support piece 330 can slide in the mounting groove 34, so that it can be adjusted in position according to the actual size of the flange 1 of different specifications to achieve the best supporting effect. At the same time, the connecting hole 332 at the top of the support piece 330 is connected with the flange 1 through the connecting piece, which ensures the stable positioning of the flange 1 during welding and prevents displacement under external force, thereby improving the accuracy and consistency of the welding operation.

[0050] The first driving part 35 is connected with the abutting piece 331, so that the abutting piece 331 is accurately rotated under the driving of the first driving part 35 and forms a stable contact surface with the outer peripheral wall of the flange 1. This multi-point touch type clamping method can effectively disperse the pressure borne by the flange 1 and prevent deformation of the flange 1 caused by excessive local pressure during welding, thereby maintaining the appearance of the weld and the structural integrity of the product.

[0051] It can be seen that through the sliding of the support piece 330 and the adjustable rotation of the abutting piece 331, the base support assembly 30 can quickly adapt to flanges 1 of various sizes and shapes without the need to frequently replace tools or reconfigure tooling, thereby simplifying the production process, significantly improving the welding quality and production efficiency, and reducing the production cost.

[0052] In this embodiment, the clamping structure 33 further includes a fixed plate 333, a movable rod 334, and a movable block 335. The fixed plate 333 is located at the opening of the mounting groove 34 and is connected with the mounting seat 31. The movable rod 334 is threaded through the fixed plate 333 and is threadedly connected with the fixed plate 333. The movable block 335 is slidably arranged within the mounting groove 34. One end of the movable rod 334 is threaded through the movable block 335 and is threadedly connected with the movable block 335. The support 330 is connected with the movable block 335, so that the movable block 335 drives the support 330 to move by rotating the movable rod 334. The end of the movable rod 334 away from the movable block 335 is provided with a knob, and the operator rotates the movable rod 334 by turning the knob.

[0053] Through the threaded connection between the movable rod 334, the fixed plate 333, and the movable block 335, the operator can fine-tune the position of the support 330 by simply rotating the movable rod 334. Through the connection between the movable block 335 and the support 330, the stability of the flange 1 when clamped is ensured. When the movable rod 334 is rotated, the movable block 335 slides in a specific direction within the mounting groove 34, driving the support 330 to exert uniform pressure on the flange 1 to clamp the flange 1.

[0054] This precise adjustment capability enables the bottom support assembly 30 to adapt to flanges 1 of different sizes and thicknesses, ensuring that each flange 1 is properly supported and positioned, and effectively preventing the flange 1 from shifting or deforming during welding, thereby ensuring the quality of the weld and the structural integrity of the product, and improving the versatility and adaptability of the device.

[0055] In this embodiment, the movable assembly 40 includes an adjusting structure 42 and a tightening structure 43. The adjusting structure 42 includes a connecting head 420, a universal head 421, an elbow 422, and an adjusting plate 423. The connecting head 420 is fixed relative to the rack base 10. The universal head 421 is rotatably connected with the connecting head 420 in a first direction. The adjusting plate 423 is rotatably connected with the universal head 421 in a second direction through the elbow 422. The tightening structure 43 is arranged on the adjusting plate 423. The tightening member 41 is connected with the tightening structure 43 to drive the tightening member 41 to move along a third direction to one end of the tightening elbow 2.

[0056] The universal joint 421 can rotate freely in the first direction, while the elbow 422 allows the adjusting plate 423 to rotate in the second direction. This multi-dimensional adjustment capability enables the clamping structure 43 to flexibly adapt to different angles and curvatures of the elbow pipe 2, ensuring that the clamping member 41 can accurately align and clamp one end of the elbow pipe 2, regardless of the complexity of the shape of the elbow pipe 2, and achieving precise positioning and stable clamping. Moreover, by driving the clamping member 41 to move linearly in the third direction, the elbow pipe 2 can be precisely forced, avoiding uneven welds or welding defects caused by unstable position of the elbow pipe 2 during welding, which helps to improve the welding quality and the structural strength of the product.

[0057] Before installing the elbow pipe 2, the screws at the connections of the universal joint are loosened; when placing the elbow pipe 2, the bottom end of the elbow pipe 2 is placed flat on the flange 1 on the bottom support assembly 30, the clamping member 41 is controlled by the clamping structure 43 to clamp the top end of the elbow pipe 2, and the universal joint is adjusted to match the direction of the top end of the elbow pipe 2, and finally the screws at the connections of the universal joint are tightened. For the same size of elbow pipe 2, the position is determined, and the subsequent batch welding process can be directly clamped and positioned.

[0058] As can be seen, through the design of the movable assembly 40, not only the problems in traditional elbow pipe 2 positioning and clamping are solved, but also the welding quality and production efficiency are significantly improved, and the production cost is reduced through its excellent adaptability, accuracy and automatic control capability.

[0059] In this embodiment, the clamping structure 43 includes a fixed seat 430, a second driving component 431 and a limiting member 433, the fixed seat 430 is arranged on the adjusting plate 423; the second driving component 431 is arranged on the fixed seat 430, the output end of the second driving component 431 is connected with the clamping member 41 through a guide rod 432 to drive the clamping member 41 to move in the third direction; the clamping member 41 includes a first clamping part 410 and a second clamping part 411, the first clamping part 410 is used to extend into the elbow pipe 2, and the second clamping part 411 is arranged on the outer edge of the first clamping part 410 and abuts against the pipe opening of the elbow pipe 2; the limiting member 433 is connected with the fixed seat 430, a limiting groove 434 is arranged on the limiting member 433, and one end of the elbow pipe 2 is located in the limiting groove 434. The second driving component 431 is a gas cylinder or other components.

[0060] Through the structural design of the clamping member 41, that is, the first clamping part 410 extends into the inside of the elbow pipe 2, and the second clamping part 411 abuts against the outside of the pipe opening of the elbow pipe 2, the double positioning mode of inside and outside can ensure that the elbow pipe 2 is clamped at one end while the other end is accurately butted against the flange 1, thereby ensuring the accuracy and consistency of the weld during welding. By driving the clamping member 41 along the third direction by the second driving part 431, appropriate clamping force can be applied according to the specific size of the elbow pipe 2 and the welding requirement, so as to prevent the elbow pipe 2 from being deformed due to external force during welding, and ensure the position alignment between the elbow pipe 2 and the flange 1 before welding.

[0061] In addition, the combined design of the first clamping part 410 and the second clamping part 411 of the clamping member 41 enables the clamping structure 43 to adapt to elbow pipes 2 of different diameters and shapes, without the need to equip special clamping tools for each type of elbow pipe 2, thereby reducing equipment investment and maintenance costs and improving the flexibility and economy of the production line.

[0062] The limiting groove 434 on the limiting member 433 can provide additional limitation and protection to one end of the elbow pipe 2, prevent the elbow pipe 2 from sliding or mispositioning accidentally during clamping or welding, ensure the safety of operation, and at the same time protect the elbow pipe 2 from unnecessary damage and maintain product quality.

[0063] In the embodiment, the welding gun assembly 50 includes a mounting bracket 51, a mounting member 52, and a welding gun structure 54, the mounting bracket 51 is arranged on the second bearing member 22; the mounting member 52 is movably arranged on the mounting bracket 51 in the vertical direction, the mounting member 52 is rotatably arranged, and the third driving part 53 is arranged on the mounting member 52; the welding gun structure 54 is movably arranged relative to the mounting member 52, and the welding gun structure 54 includes a welding gun part 540, a cross adjustment mechanism 541, and a mounting plate 542, the mounting plate 542 is connected with the output end of the third driving part 53, and the welding gun part 540 is arranged on the mounting plate 542 through the cross adjustment mechanism 541. The third driving part 53 is a motor or other components.

[0064] Through the connection between the mounting plate 542 in the welding gun structure 54 and the third driving part 53, the welding gun part 540 can not only move up and down in the vertical direction under the driving of the mounting member 52, but also rotate, and the welding gun part 540 can move forward and backward and be finely adjusted in the horizontal direction by cooperating with the cross adjustment mechanism 541. The multi-dimensional movement control capability ensures that the welding gun can accurately align the welding point, and high-quality welding can be completed whether it is a plane weld or a complex three-dimensional structure, thereby solving the problems of difficult weld positioning, unstable welding quality, and low production efficiency in traditional welding.

[0065] In this embodiment, the mounting member 52 is provided with an adjusting hole, the top end of the mounting bracket 51 is inserted into the adjusting hole, the mounting member 52 is also provided with a first connecting hole 332 connected with the adjusting hole, the top end of the mounting bracket 51 is provided with a second threaded hole, and the screws are respectively inserted into the first threaded hole and the second threaded hole and abut against the mounting bracket 51, so as to fix the mounting member 52 relative to the mounting bracket 51. When the position of the welding gun structure 54 needs to be adjusted, the screws are loosened, the mounting member 52 is manually rotated or adjusted up and down to drive the welding gun structure 54 to adjust the position, and then the screws are tightened after the welding gun component 540 is roughly aligned with the pre-welding position, so as to realize the gross adjustment of the welding gun component 540, and then the cross adjustment mechanism 541 is used to finely adjust the welding gun component 540, so that the welding gun component 540 is accurately aligned with the welding position.

[0066] In this embodiment, the bearing assembly 20 further includes a bottom plate 23, a bearing structure 25, and a fourth driving component 26. The bottom plate 23 is arranged on the rack base 10. A mounting shaft 24 is connected with the bottom plate 23 and the first bearing 21 at both ends respectively. The bearing structure 25 is rotatably arranged on the mounting shaft 24, and the second bearing 22 is connected with the bearing structure 25 below the first bearing 21. The fourth driving component 26 is arranged on the bottom plate 23. A first gear 27 is arranged on the bearing structure 25. The first gear 27 is connected with the bottom of the second bearing 22. The output end of the fourth driving component 26 is provided with a second gear 28. The first gear 27 is meshed and connected with the second gear 28. The fourth driving component 26 is a motor or other components.

[0067] By arranging the bearing structure 25 on the mounting shaft 24, the first bearing 21 and the second bearing 22 can rotate freely. This design enables the welding gun assembly 50 to rotate 360 degrees around the flange 1 and the elbow pipe 2, greatly improving the adaptability and flexibility of the device, which can meet the welding requirements of various angles and positions, and ensure the quality and aesthetics of the weld. The use of the bearing structure 25 not only can withstand large rotating force and load, but also has a low friction coefficient, which reduces energy loss and mechanical wear during rotation, helps to reduce maintenance costs, and prolongs the overall service life of the equipment.

[0068] Not only improves the stability and flexibility of the welding device, but also significantly improves the welding quality and production efficiency, and reduces the production cost through its automation, precise control and high-efficiency rotation ability.

[0069] In the embodiment, the bearing structure 25 comprises a first bearing seat, a first bearing, a bearing frame, a second bearing seat and a second bearing, the first bearing seat is fixed on the bottom plate 23, the first bearing is installed on the first bearing seat, the bearing frame is used for supporting the second bearing seat, and the second bearing is assembled on the second bearing seat. The mounting shaft 24 is also provided with a cable sheath, and the cable sheath is inlaid on the flange 1 of the mounting shaft 24.

[0070] In the embodiment, the welding device further comprises a column 11, an adapter 12 and a positioning assembly 60, the column 11 is movably arranged on the rack base 10 in the direction of approaching or moving away from the bearing assembly 20, the positioning assembly 60 is arranged on the column 11, the adapter 12 is detachably connected with the positioning assembly 60, and the adapter 12 is provided with a mounting portion 120, and the adapter 12 is connected with the movable assembly 40 through the mounting portion 120.

[0071] The column 11 can move on the rack base 10 in the direction of approaching or moving away from the bearing assembly 20, so that the distance between the movable assembly 40 and the elbow pipe 2 and the flange 1 can be finely adjusted. The far and near adjustment capability, combined with the precise positioning of the adapter 12 and the positioning assembly 60, can ensure that the position of the welding gun component 540 in the welding process is accurate, and no matter how the curvature of the elbow pipe 2 or the position of the flange 1 changes, the best welding posture can be achieved, and the welding quality and efficiency are improved.

[0072] In addition, the detachable connection between the adapter 12 and the positioning assembly 60 enables different types of movable assemblies 40 to be quickly replaced to adapt to the welding requirements of different specifications of elbow pipes 2 and flanges 1. The modular design idea greatly enhances the versatility and flexibility of the welding device, and reduces the cost of increasing equipment investment of enterprises to cope with diversified product production.

[0073] Through the combined design of the column 11, the adapter 12 and the positioning assembly 60, not only the problems of inaccurate positioning and poor adaptability in the traditional welding process are solved, but also the welding quality and production efficiency are significantly improved, and the production cost is reduced through the automatic control, modular design and precise positioning capability.

[0074] In the embodiment, the adapter 12 is provided with a mounting hole 121, and a guide sleeve 122 is arranged in the mounting hole 121. The positioning assembly 60 includes a positioning block 61, a positioning piece 62, and two pressing blocks 63. The positioning block 61 is arranged on the stand 11, and the positioning block 61 is provided with a positioning groove 610 in which one end of the adapter 12 is located. A through hole 611 is arranged on the groove bottom wall of the positioning groove 610, one end of the positioning piece 62 is connected with the stand 11 and at least part of the positioning piece 62 is arranged in the through hole 611, and the other end of the positioning piece 62 is connected with the guide sleeve 122. The two pressing blocks 63 are arranged on the positioning block 61 in opposition, and the pressing blocks 63 are rotatably arranged to press the adapter 12. The positioning piece 62 is a positioning pin, and the guide sleeve 122 is a positioning pin guide sleeve.

[0075] The mounting hole 121 of the adapter 12 is provided with the guide sleeve 122, which is connected with the other end of the positioning piece 62, and the rotation pressing mechanism of the pressing block 63, so that the connection between the adapter 12 and the positioning assembly 60 becomes fast and simple. This design greatly facilitates the installation and disassembly of the welding gun assembly 50 or other movable assemblies 40, shortens the equipment adjustment and conversion time, and improves the production efficiency.

[0076] It can be seen that, through the cooperation of the positioning piece 62 and the guide sleeve 122, and the pressing action of the pressing block 63, the adapter 12 and the positioning assembly 60 form a stable connection structure. This design can withstand the vibration and external force generated during the welding process, ensure that the movable assembly 40 such as the welding gun assembly 50 will not loosen due to slight vibration or improper operation, and improve the reliability and safety of the welding device. And, the same set of positioning assembly 60 can adapt to different types of adapters 12, which not only increases the adaptability of the welding device, makes the equipment able to handle diversified welding needs, and enhances the versatility and operation safety of the equipment.

[0077] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0078] Since the pressing part 41 can not only rotate freely around two mutually perpendicular directions, but also linearly move along the third direction, no matter the angle of the elbow pipe 2, the pressing part 41 can find the best position to press the elbow pipe 2 at one end, so that the other end is tightly connected with the flange 1. Such multi-dimensional adjustment capability greatly enhances the adaptability of the device to different specifications of the elbow pipe 2, realizes quick changeover, and saves production preparation time. The welding gun assembly 50 is arranged on the rotatable second bearing part 22, which can rotate 360° around the flange 1 for welding, thereby ensuring the full coverage and uniformity of the weld, greatly improving the welding precision, and reducing the quality problems such as uneven weld and incomplete fusion commonly seen in traditional manual welding. By introducing the automatic or semi-automatic welding process, combined with the bearing assembly 20, the bottom support assembly 30, the movable assembly 40 and the welding gun assembly 50, the welding quality fluctuation problem caused by the difference in technical level of the operators, fatigue and environmental interference in the traditional manual welding process is effectively overcome, and the welding consistency and product reliability are significantly improved. Further, the technical problem of low production efficiency in the prior art by clamping the elbow pipe 2 and the flange 1 with a simple tool and then manually welding is solved.

[0079] It is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0080] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application, unless otherwise specifically stated. It is to be understood that the drawings are not necessarily to scale as the dimensions of the parts shown are for the purpose of illustration and description only. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as if the discussion were in place. In all examples shown and discussed herein, any specific values are to be interpreted as illustrative only and not as a limitation. Thus, other examples of example embodiments can have different values. It is noted that like numbers and letters on the figures identify like parts throughout the disclosure, and thus, once defined, do not need to be further discussed.

[0081] In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0082] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0083] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the application.

[0084] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A welding device, characterized in that, The utility model relates to a welding machine for flange and elbow pipe, which comprises a rack base (10), a bearing assembly (20) arranged on the rack base (10), the bearing assembly (20) comprising a first bearing (21) and a second bearing (22), the second bearing (22) being rotatably arranged around the first bearing (21), a bottom support assembly (30), a movable assembly (40) and a welding gun assembly (50), the bottom support assembly (30) being arranged on the first bearing (21) and used for fixing a flange (1), at least part of the movable assembly (40) being fixed relative to the rack base (10), the movable assembly (40) comprising a tightening member (41) rotatably arranged around a first direction and a second direction respectively, the tightening member (41) being movably arranged along a third direction, so that the tightening member (41) is moved to one end of an elbow pipe (2) to make the other end of the elbow pipe (2) abut against the flange (1), the welding gun assembly (50) being arranged on the second bearing (22) and used for rotating around the flange (1) and welding a gap between the elbow pipe (2) and the flange (1). The first direction, the second direction and the third direction are arranged perpendicularly. The bottom support assembly (30) comprises a mounting seat (31) arranged on the first bearing (21), the mounting seat (31) being provided with a guide member (32), the flange (1) being sleeved on at least part of the guide member (32), two clamping structures (33) movably arranged on the mounting seat (31) in a direction of relatively approaching or moving away, the clamping structure (33) comprising a supporting member (330) and an abutting member (331), the supporting member (330) being used for supporting and connecting with the flange (1), the abutting member (331) being rotatably arranged and used for abutting against the outer circumferential wall of the flange (1) to clamp the flange (1). The mounting seat (31) is oppositely provided with two mounting grooves (34), the guide member (32) being located between the two mounting grooves (34), at least part of the supporting member (330) being slidably arranged in the mounting groove (34), the top of the supporting member (330) being provided with a connecting hole (332), a connecting member being respectively arranged on the flange (1) and the connecting hole (332) to connect the flange (1) with the supporting member (330). The clamping structure (33) further comprises a first driving component (35) arranged on one side of the supporting member (330), the abutting member (331) being connected with the output end of the first driving component (35) to make the first driving component (35) drive the abutting member (331) to rotate and abut against the outer circumferential wall of the flange (1).

2. The welding device of claim 1, wherein, The clamping structure (33) further comprises a fixed plate (333) located at the opening of the mounting groove (34) and connected with the mounting seat (31). ​ ​ 3. The welding device of claim 2, wherein, ​ ​ ​ 4. The welding device of claim 3, wherein, ​ ​ A movable rod (334) is arranged on the fixed plate (333) and is threadedly connected with the fixed plate (333); A movable block (335) is arranged in the mounting groove (34) and is slidably arranged, one end of the movable rod (334) is arranged on the movable block (335) and is threadedly connected with the movable block (335), and the support (330) is connected with the movable block (335) so that the movable block (335) drives the support (330) to move by rotating the movable rod (334).

5. The welding device of claim 1, wherein, The movable assembly (40) comprises: An adjusting structure (42) comprising a connecting head (420), a universal head (421), an elbow (422) and an adjusting plate (423), the connecting head (420) is fixed relative to the rack base (10), the universal head (421) is rotatably connected with the connecting head (420) around the first direction, and the adjusting plate (423) is rotatably connected with the universal head (421) around the second direction through the elbow (422); A tightening structure (43) is arranged on the adjusting plate (423), and the tightening member (41) is connected with the tightening structure (43) to drive the tightening member (41) to move along the third direction to tighten one end of the elbow pipe (2).

6. The welding device of claim 5, wherein, The tightening structure (43) comprises: A fixed seat (430) is arranged on the adjusting plate (423); A second driving component (431) is arranged on the fixed seat (430), and an output end of the second driving component (431) is connected with the tightening member (41) through a guide rod (432) to drive the tightening member (41) to move along the third direction; the tightening member (41) comprises a first tightening portion (410) and a second tightening portion (411), the first tightening portion (410) is arranged to extend into the elbow pipe (2), and the second tightening portion (411) is arranged outside the outer edge of the first tightening portion (410) and abuts against the pipe opening of the elbow pipe (2); A limiting member (433) is connected with the fixed seat (430), a limiting groove (434) is arranged on the limiting member (433), and one end portion of the elbow pipe (2) is arranged in the limiting groove (434).

7. The welding device of claim 1, wherein, The welding gun assembly (50) comprises: A mounting bracket (51) is arranged on the second bearing member (22); A mounting member (52) is movably arranged on the mounting bracket (51) in the vertical direction, the mounting member (52) is rotatably arranged, and a third driving component (53) is arranged on the mounting member (52); A welding gun structure (54) is movably arranged relative to the mounting member (52), the welding gun structure (54) comprises a welding gun component (540), a cross adjusting mechanism (541) and a mounting plate (542), the mounting plate (542) is connected with an output end of the third driving component (53), and the welding gun component (540) is mounted on the mounting plate (542) through the cross adjusting mechanism (541).

8. The welding device of claim 1, wherein, The bearing assembly (20) further comprises: A bottom plate (23) is arranged on the rack base (10); A mounting shaft (24) has two ends connected with the bottom plate (23) and the first bearing (21) respectively; A bearing structure (25) is sleeved on the mounting shaft (24) and rotatably arranged, and the second bearing (22) is connected with the bearing structure (25) and located below the first bearing (21); A fourth driving component (26) is arranged on the bottom plate (23), a first gear (27) is sleeved on the bearing structure (25), the first gear (27) is connected with the bottom of the second bearing (22), and an output end of the fourth driving component (26) is provided with a second gear (28), and the first gear (27) is meshed and connected with the second gear (28).

9. The welding device of claim 1, wherein, The welding device further comprises: A stand column (11) is movably arranged on the rack base (10) in the direction close to or away from the bearing assembly (20); An adapter (12) and a positioning assembly (60) are arranged on the stand column (11), the adapter (12) is detachably connected with the positioning assembly (60), the adapter (12) is provided with a mounting portion (120), and the adapter (12) is connected with the movable assembly (40) through the mounting portion (120).

10. The welding device of claim 9, wherein, The adapter (12) is provided with a mounting hole (121), a guide sleeve (122) is arranged in the mounting hole (121), and the positioning assembly (60) comprises: A positioning block (61) is arranged on the stand column (11), the positioning block (61) is provided with a positioning groove (610), and one end of the adapter (12) is located in the positioning groove (610); A positioning piece (62) is arranged on the stand column (11), a through hole (611) is arranged on the groove bottom wall of the positioning groove (610), one end of the positioning piece (62) is connected with the stand column (11), at least part of the positioning piece (62) is arranged in the through hole (611), and the other end of the positioning piece (62) is connected with the guide sleeve (122); Two pressing blocks (63) are oppositely arranged on the positioning block (61), and the pressing blocks (63) are rotatably arranged to press the adapter (12).

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