Welding equipment

Abstract

The utility model relates to the technical field of pipeline welding equipment, in particular to welding equipment which comprises a clamping mechanism and a welding mechanism, the clamping mechanism is used for clamping a pipeline, the welding mechanism comprises a welding space and a welding head, and the welding head is arranged in the welding space and used for welding the pipeline. The clamping mechanism comprises a clamping opening, the clamping opening is located in the welding space, the clamping mechanism is connected with a water cooling system and a gas protection system, the gas protection system is used for providing protection gas, the water cooling system comprises a heat conduction plate and a water path circulation pipeline, at least part of the heat conduction plate is arranged at the position of the welding space, and the water path circulation pipeline is used for providing protection gas. The heat conducting plate is used for conducting heat generated during welding, and the water path circulating pipeline is connected with the heat conducting plate and used for cooling the heat conducting plate.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pipeline welding equipment, and in particular to a welding equipment. Background Art

[0002] Special gases emerged in the mid-1960s and are basic chemical engineering materials. Special gases can generally be classified into electronic gases, standard gases, environmental protection gases, medical gases, welding gases, sterilization gases, etc., and are widely used in the fields of electronics, electric power, petrochemical industry, mining, steel, non-ferrous metal smelting, thermal engineering, biochemistry, environmental monitoring, medical research and diagnosis, food preservation, etc.

[0003] The inner diameter of the pipeline for special gases (special gas pipeline) is usually small, generally between 3 mm and 12.7 mm in diameter. When welding between pipelines, either manual welding or a welding equipment is used for welding. During welding, it needs to be protected in an inert gas atmosphere. Due to the high temperature during welding, a water cooling system is also required to cool it. The water cooling system and the inert gas protection chamber of the existing welding equipment are both arranged at the position of the clamping mechanism, which makes it necessary to reserve enough space for the water cooling system and the inert gas protection chamber at the position of the clamping mechanism. This will result in a relatively large volume and thick wall thickness of the entire clamping mechanism. When using the welding equipment for welding, the clamping mechanism of the welding equipment needs to clamp the pipeline. Due to the thick wall thickness of the clamping mechanism, the welding space at some parts is very limited, resulting in great welding difficulty. Summary of the Utility Model

[0004] In view of the deficiencies or problems existing in the prior art, the present disclosure provides a welding equipment, which is convenient to operate when welding small-sized special gas pipelines and has a good welding effect.

[0005] The technical solution adopted by the present disclosure to solve the above technical problems is: a welding equipment, including a clamping mechanism and a welding mechanism. The clamping mechanism is used for clamping a pipeline. The welding mechanism includes a welding space and a welding head. The welding head is arranged in the welding space and is used for welding the pipeline. The clamping mechanism includes a clamping opening. The clamping opening is close to the welding space. The clamping mechanism is connected with a water cooling system. The water cooling system includes a heat conducting plate and a water circulation pipeline. At least part of the heat conducting plate is arranged at the position of the welding space and is used for conducting the heat generated during welding. The water circulation pipeline is connected with the heat conducting plate and is used for cooling the heat conducting plate.

[0006] As a preferred embodiment, at least part of the water circulation pipeline is arranged at the middle and lower part of the heat conducting plate.

[0007] As a preferred embodiment, the clamping mechanism includes a first clamp and a second clamp. The welding space is arranged between the first clamp and the second clamp. The first clamp is used for clamping a first pipeline, and the second clamp is used for clamping a second pipeline. The first clamp and the second clamp are connected by a first connecting member. The heat conducting plate is arranged between the first clamp and the second clamp.

[0008] As a preferred embodiment, the clamping opening includes a first clamping opening. The first clamp includes a first upper plate body and a first lower plate body. The first upper plate body is provided with a first concave, and the first lower plate body is provided with a second concave. After the first upper plate body and the first lower plate body are connected, the first clamping opening is surrounded by the first concave and the second concave, and the first pipeline is clamped in the first clamping opening.

[0009] As a preferred embodiment, at least two first protrusions are arranged on the first concave, and at least one first hollow structure is arranged on the first upper plate body. The first hollow structure is communicated with the first concave; at least two second protrusions are arranged on the second concave, and at least one second hollow structure is arranged on the first lower plate body. The second hollow structure is communicated with the second concave.

[0010] As a preferred embodiment, the clamping opening further includes a second clamping opening. The second clamp includes a second upper plate body and a second lower plate body. The second upper plate body is provided with a third concave, and the second lower plate body is provided with a fourth concave. After the second upper plate body and the second lower plate body are connected, the second clamping opening is surrounded by the third concave and the fourth concave, and the second pipeline is clamped in the second clamping opening.

[0011] As a preferred embodiment, at least two third protrusions are arranged on the third concave, and at least one third hollow structure is arranged on the second upper plate body. The third hollow structure is communicated with the third concave; at least two fourth protrusions are arranged on the fourth concave, and at least one fourth hollow structure is arranged on the second lower plate body. The fourth hollow structure is communicated with the fourth concave.

[0012] As a preferred embodiment, a transmission mechanism is arranged between the second clamp and the heat conducting plate. The welding head is arranged on the transmission mechanism, and the transmission mechanism is used for driving the welding head to rotate.

[0013] As a preferred embodiment, the water circulation pipeline includes a first pipeline, a water inlet pipeline and a water outlet pipeline. The first pipeline is arranged on the heat conducting plate. The water inlet pipeline is used for connecting a water source, and the water outlet pipeline is used for draining water. The water inlet pipeline and the water outlet pipeline are arranged below the first pipeline, and the first pipeline is respectively communicated with the water inlet pipeline and the water outlet pipeline.

[0014] As a preferred embodiment, the first pipeline is arranged along the width direction of the heat conducting plate, and the water inlet pipeline and the water outlet pipeline are arranged in parallel.

[0015] As a preferred embodiment, it further includes a gas protection system for providing a protective gas. The gas protection system includes a first inlet gas pipeline and an inlet gas passage. One end of the first inlet gas pipeline is connected to a gas source, the other end of the first inlet gas pipeline is connected to the inlet gas passage, the inlet gas passage is communicated with the welding space, and the gas source flows from the inlet gas passage to the welding space.

[0016] As a preferred embodiment, it further includes a housing. The housing includes a first housing and a second housing. The first housing and the first fixture are arranged on the same side, and the first housing is arranged below the first fixture. The second housing and the second fixture are arranged on the same side, and the second housing is arranged below the second fixture. After the first housing and the second housing are closed, a receiving cavity is formed. At least a part of the water inlet pipeline and the water outlet pipeline is arranged in the receiving cavity; at least a part of the first inlet gas pipeline is arranged in the receiving cavity.

[0017] As a preferred embodiment, a first connection block is arranged between the housing and the clamping mechanism. At least a part of the first connection block is located in the receiving cavity, and the water inlet pipeline and the water outlet pipeline respectively pass through the first connection block.

[0018] As a preferred embodiment, the first inlet gas pipeline is arranged on the first connection block. The inlet gas passage includes a first passage. The first passage is arranged on the first connection block, and the first inlet gas pipeline is communicated with the first passage.

[0019] As a preferred embodiment, the inlet gas passage further includes at least one second passage. A second connection block is arranged between the first connection block and the first fixture. The second passage is arranged on the second connection block, and the second passage is communicated with the first passage; the second connection block is provided with at least one third passage. The third passage penetrates through the second connection block, and the number of the third passages is the same as that of the second passages. The third passage is communicated with the second passage.

[0020] As a preferred embodiment, a first receiving groove and two second receiving grooves are arranged on the second connection block. The first receiving groove is used for receiving the first pipeline, and the two second receiving grooves are respectively used for receiving the water inlet pipeline and the water outlet pipeline.

[0021] As a preferred embodiment, the second connection block is connected with a connecting plate assembly. The inlet gas passage further includes at least one fourth passage. The fourth passage is arranged on the connecting plate assembly, and the fourth passage is communicated with the third passage.

[0022] As a preferred embodiment, the connecting plate assembly includes a first connecting plate and a second connecting plate. The first connecting plate is disposed between the first fixture and the second fixture. The first connecting plate is connected to the second connecting block. The second connecting plate is disposed between the second fixture and the first connecting block. After the first connecting plate and the second connecting plate are connected, a first air inlet groove and a second air inlet groove are formed. The fourth channel includes the first air inlet groove, the second air inlet groove, and a first through hole penetrating the first connecting plate. The first through hole is communicated with the third channel. The shielding gas enters the first through hole from the third channel, and then enters the first air inlet groove and the second air inlet groove in sequence from the first through hole.

[0023] As a preferred embodiment, a notch is formed on the side of the first air inlet groove. The first air inlet groove and the second air inlet groove are communicated through the notch. A first flow guiding structure is disposed on the first connecting plate, a second flow guiding structure is disposed on the second connecting plate, and a third flow guiding structure is disposed on the second lower plate body. The first flow guiding structure cooperates with the second flow guiding structure and the third flow guiding structure respectively to guide the gas in the second air inlet groove into the welding space.

[0024] As a preferred embodiment, the air inlet channel further includes a fifth channel. The fifth channel includes a second through hole penetrating the first connecting plate and a third through hole penetrating the second connecting block. The shielding gas enters the first through hole from the third channel, and then enters the first air inlet groove from the first through hole. Part of the shielding gas in the first air inlet groove enters the second air inlet groove, and part enters the fifth channel.

[0025] As a preferred embodiment, the air inlet channel further includes a sixth channel. The sixth channel is communicated with the fifth channel. A cover plate is connected to the second connecting block. The cover plate is disposed below the first lower plate body. The sixth channel is disposed on the cover plate. A fourth flow guiding structure is disposed on the second connecting block, a fifth flow guiding structure is further disposed on the cover plate, and a sixth flow guiding structure is disposed on the first lower plate body. The fourth flow guiding structure cooperates with the fifth flow guiding structure and the sixth flow guiding structure respectively to guide the gas in the sixth channel into the welding space.

[0026] As a preferred embodiment, the transmission mechanism is a gear assembly. The gear assembly includes a first gear. The first gear is of an annular structure. The welding head is disposed in the annular structure, and the welding space is located in the annular structure.

[0027] Compared with existing products, since the water cooling system includes a heat conducting plate and a water circuit pipeline, the heat conducting plate is at least partially disposed at the position of the welding space, the heat conducting plate is used to conduct the heat generated during welding, the water circuit pipeline is connected to the heat conducting plate, and the water circuit pipeline is used to cool the heat conducting plate. The heat conducting plate is in a plate-like structure, which saves more space and will not cause the wall thickness at the clamping mechanism to be too thick, affecting the clamping of small-sized pipes. During welding, the heat generated is transferred to the heat conducting plate, and then the water circuit pipeline cools down the heat conducting plate to achieve the purpose of cooling the welding space. In this way, it can not only cool well but also conveniently weld small-sized special gas pipes. Brief Description of the Drawings

[0028] The following will further describe the present application in detail with reference to the drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be regarded as limiting the scope of the present application. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0029] Figure 1 is one of the structural schematic diagrams of a welding device according to the present disclosure;

[0030] Figure 2 is another structural schematic diagram of a welding device according to the present disclosure;

[0031] Figure 3 is a cross-sectional view of a welding device according to the present disclosure;

[0032] Figure 4 is the present disclosure Figure 3 a partial enlarged view of part A;

[0033] Figure 5 is the structural schematic diagram of the second connecting block according to the present disclosure;

[0034] Figure 6 is the third structural schematic diagram of a welding device according to the present disclosure;

[0035] Figure 7 is the fourth structural schematic diagram of a welding device according to the present disclosure;

[0036] Figure 8 is the present disclosure Figure 7 a partial enlarged view of part B;

[0037] Figure 9 is the structural schematic diagram of the connection between the second fixture and the second connecting plate according to the present disclosure;

[0038] Figure 10 is the present disclosure Figure 9Partial enlarged view at position C;

[0039] Figure 11 It is a schematic structural diagram of the connection between the first fixture and the cover plate of the present disclosure;

[0040] Figure 12 It is the present disclosure Figure 11 Partial enlarged view at position D;

[0041] Figure 13 It is the fifth schematic structural diagram of a welding device of the present disclosure.

[0042] Explanation of reference numerals:

[0043] First upper plate body; 111, first protrusion; 112, first hollow structure; 2, first lower plate body; 211, second protrusion; 212, second hollow structure; 213, sixth diversion structure; 3, first clamping port; 4, second upper plate body; 41, third protrusion; 42, third hollow structure; 5, second lower plate body; 51, third diversion structure; 52, fourth protrusion; 53, fourth hollow structure; 6, second clamping port; 7, first connecting block; 71, installation channel; 8, second connecting block; 81, first accommodation groove; 82, second accommodation groove; 83, connecting plate body; 84, third through hole; 85, fourth diversion structure; 9, cover plate; 91, fifth diversion structure; 10, observation window; 11, first housing; 12, second housing; 13, rotating motor; 14, heat conducting plate; 15, welding head; 16, first connecting plate; 161, first diversion structure; 162, second through hole; 17, second connecting plate; 171, second diversion structure; 18, welding space; 100, first air inlet pipeline; 101, first channel; 1011, transverse channel; 1012, longitudinal channel; 102, second channel; 103, third channel; 1041, first air inlet groove; 1042, second air inlet groove; 1043, first through hole; 105, sixth channel; 200, first pipeline; 201, water inlet pipeline; 202, water outlet pipeline. Detailed implementation manners

[0044] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the present disclosure will be described in detail, clearly and completely below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present disclosure and are not used to limit the present disclosure.

[0045] Those skilled in the art should understand that in the disclosure of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on the present utility model.

[0046] Please refer to Figures 1 - 6 and Figure 13 As shown, an embodiment of the present disclosure provides a welding device, including a clamping mechanism and a welding mechanism. The clamping mechanism is used to clamp a pipeline. The welding mechanism includes a welding space 18 and a welding head 15. The welding head 15 is disposed in the welding space 18, and the welding head 15 is used to weld the pipeline. The clamping mechanism includes a clamping opening, and the clamping opening is close to the welding space 18. The clamping mechanism is connected to a water cooling system and a gas protection system. The gas protection system is used to provide a protective gas to prevent chemical reactions such as oxidation of the pipeline during welding. The water cooling system includes a heat conducting plate 14 and a water circulation pipeline. At least part of the water circulation pipeline is disposed below the middle of the heat conducting plate 14. At least part of the heat conducting plate 14 is disposed at the position of the welding space 18. The heat conducting plate 14 is used to conduct the heat generated during welding. The water circulation pipeline is connected to the heat conducting plate 14, and the water circulation pipeline is used to cool the heat conducting plate 14. The heat conducting plate 14 is in a plate-like structure, which saves more space. The heat conducting plate 14 is disposed at the position of the welding space 18, and the water circulation pipeline is disposed below the heat conducting plate 14, which will not make the wall thickness at the clamping mechanism too thick and affect the clamping of small-sized pipelines. The heat generated during welding is transferred to the heat conducting plate 14, and then the water circulation pipeline cools down the heat conducting plate 14 to achieve the purpose of cooling the welding space 18. In this way, it can not only cool well but also conveniently weld small-sized special gas pipelines.

[0047] In an embodiment of the present disclosure, the clamping mechanism includes a first clamp and a second clamp which are plate-shaped structures. A welding space 18 is provided between the first clamp and the second clamp. The first clamp is used to clamp a first pipe, and the second clamp is used to clamp a second pipe, so that the ends of the first pipe and the second pipe are in contact. The contact area between the first pipe and the second pipe is located in the welding space 18. The welding head 15 welds the contact area between the two, thereby connecting the first pipe and the second pipe. The first clamp and the second clamp are connected by a first connecting member, and a heat conducting plate 14 is provided between the first clamp and the second clamp. A transmission mechanism is provided between the second clamp and the heat conducting plate 14, and the welding head 15 is arranged on the transmission mechanism. The transmission mechanism is used to drive the welding head 15 to rotate. Specifically, the welding head 15 is a tungsten electrode, the first connecting member is a bolt, the transmission mechanism is further connected to a driving mechanism, the driving mechanism is a rotary motor 13, the transmission mechanism is a gear assembly, the gear assembly includes a first gear, the first gear is an annular structure, the welding head 15 is arranged in the annular structure, and the welding space 18 is located in the annular structure.

[0048] As Figures 9 - 12As shown, in an embodiment of the present disclosure, the clamping opening includes a first clamping opening 3. The first clamp includes a first upper plate body 1 and a first lower plate body 2. The first upper plate body 1 is provided with a first concave, and the first lower plate body 2 is provided with a second concave. After the first upper plate body 1 and the first lower plate body 2 are connected, the first clamping opening 3 is formed by enclosing the first concave and the second concave. The first pipe is clamped in the first clamping opening 3, and the end of the first pipe to be welded is located in the welding space 18. Two first protrusions 111 are provided on the first concave, and two first hollow structures 112 are provided on the first upper plate body 1. The first hollow structure 112 is communicated with the first concave; two second protrusions 211 are provided on the second concave, and two second hollow structures 212 are provided on the first lower plate body 2. The second hollow structure 212 is communicated with the second concave. Since the pipes are all columnar in design, when the first pipe is located in the first clamping opening 3, the first pipe and the first clamping opening 3 must be in surface contact to fix the first pipe well in the first clamping opening 3. If the curved surfaces of the first clamping opening 3 and the first pipe are slightly mismatched, the first pipe is very likely to shake in the first clamping opening 3, directly affecting the welding result and welding efficiency. The purpose of providing the first protrusions 111 and the second protrusions 211 in the first clamping opening 3 is to make the first pipe contact the first protrusions 111 and the second protrusions 211 respectively. The contact between the first pipe and the first protrusions 111 and the second protrusions 211 is point contact, that is, the original surface contact becomes point contact. The two first protrusions 111 are located above, and the two second protrusions 211 are located below, which can clamp the first pipe well. After clamping, there is a gap between the first pipe and other positions of the first clamping opening 3 (that is, the positions where the first protrusions 111 and the second protrusions 211 are not provided). This gap is equivalent to a "margin space", even if the curved surface of the first pipe and the curved surface of the first clamping opening 3 are not fully matched, it will not affect the clamping effect. Since the clamping mechanism needs to clamp pipes of different sizes and models, the first hollow structure 112 and the second hollow structure 212 provide a deformation space for the first clamping opening 3 to adapt to pipes of different sizes and specifications.

[0049] Further, the clamping opening also includes a second clamping opening 6, the second clamp includes a second upper plate body 4 and a second lower plate body 5, the second upper plate body 4 is provided with a third inner recess, the second lower plate body 5 is provided with a fourth inner recess, after the second upper plate body 4 and the second lower plate body 5 are connected, the second clamping opening 6 is enclosed by the third inner recess and the fourth inner recess, the second pipe is clamped in the second clamping opening 6, so that the end of the second pipe to be welded is located in the welding space 18. Two third protrusions 41 are provided on the third inner recess, two third hollow structures 42 are provided on the second upper plate body 4, and the third hollow structure 42 is connected to the third inner recess; two fourth protrusions 52 are provided on the fourth inner recess, two fourth hollow structures 53 are provided on the second lower plate body 5, and the fourth hollow structure 53 is connected to the fourth inner recess. The functions of the third protrusion 41 and the fourth protrusion 52 are the same as those of the first protrusion 111 and the second protrusion 211 mentioned above; the functions of the third hollow structure 42 and the fourth hollow structure 53 are the same as those of the first hollow structure 112 and the second hollow structure 212 mentioned above, which will not be repeated here.

[0050] like Figures 3 - 7 As shown, it should be noted that the water circulation pipeline includes a first pipeline 200, a water inlet pipeline 201 and a water outlet pipeline 202. The first pipeline 200 is arranged below the heat conducting plate 14 (i.e., away from the clamping port) to avoid thickening the wall thickness at the clamping port. The first pipeline 200 is arranged along the width direction of the heat conducting plate 14. The water inlet pipeline 201 is used to connect to the water source, and the water outlet pipeline 202 is used for drainage. The water inlet pipeline 201 and the water outlet pipeline 202 are arranged in parallel below the first pipeline 200, and the first pipeline 200 is respectively connected to the water inlet pipeline 201 and the water outlet pipeline 202. Specifically, a mounting groove is provided on the first connecting plate 16, and the gear assembly is arranged in the mounting groove. The heat conducting plate 14 is close to the welding space 18. During the welding process, the heat of the welding space 18 will be transferred to the heat conducting plate 14, and the water circulation pipeline cools the heat conducting plate 14, so that the heat conducting plate 14 dissipates heat quickly, thereby quickly dissipating the heat of the welding space 18 and the welding head 15. The first pipeline 200 is arranged along the width direction of the heat conducting plate 14 to make the heat dissipation of the heat conducting plate 14 more uniform. The cooling water source enters from the water inlet pipeline 201, flows through the first pipeline 200, and is discharged from the water outlet pipeline 202, so that the water in the first pipeline 200 is in a circulating state, so that the water in the first pipeline 200 can take away more heat, thereby cooling the heat conducting plate 14 more quickly, so that the welding space 18 and the first connecting plate 16 dissipate heat quickly.

[0051] In one embodiment of the present disclosure, the gas protection system includes a first air inlet pipeline 100 and an air inlet channel. One end of the first air inlet pipeline 100 is connected to a gas source (the gas source is a rare gas, such as argon or helium, etc.), and the other end of the first air inlet pipeline 100 is connected to the air inlet channel. The air inlet channel is connected to the welding space 18, and the gas source flows from the air inlet channel to the welding space 18.

[0052] The welding device further includes a housing, which is the welding handle for the convenience of workers' operation. An angle counter is provided inside the housing for viewing the welding angle. The housing includes a first housing 11 and a second housing 12. The first housing 11 and the first fixture are arranged on the same side, and the first housing 11 is arranged below the first fixture. The second housing 12 and the second fixture are arranged on the same side, and the second housing 12 is arranged below the second fixture. After the first housing 11 and the second housing 12 are closed, an accommodation cavity is formed. The water inlet pipeline 201 and the water outlet pipeline 202 are at least partially arranged in the accommodation cavity; the first air inlet pipeline 100 is at least partially arranged in the accommodation cavity. The water inlet pipeline 201, the water outlet pipeline 202 and the first air inlet pipeline 100 are at least partially arranged in the accommodation cavity, greatly reducing the thickness of the clamping mechanism, enabling the clamping mechanism to have a larger operating space when clamping the pipeline and making the operation more convenient. A first connecting block 7 is arranged between the housing and the clamping mechanism. The lower part of the first connecting block 7 is located in the accommodation cavity. The water inlet pipeline 201 and the water outlet pipeline 202 respectively pass through the first connecting block 7, and the first connecting block 7 plays a role in limiting and fixing the water inlet pipeline 201 and the water outlet pipeline 202.

[0053] As Figures 1 - 6As shown, in an embodiment of the present disclosure, the first intake pipe 100 is provided on the first connection block 7. The intake passage includes a first passage 101 and two second passages 102. The first passage 101 is provided on the first connection block 7, and the first intake pipe 100 is communicated with the first passage 101. Specifically, the first passage 101 is a passage provided inside the first connection block 7. The first connection block 7 is provided with an installation passage 71. One end of the first intake pipe 100 is provided on the installation passage 71. The first passage 101 includes a transverse passage 1011 and two longitudinal passages 1012. The transverse passage 1011 is communicated with the two longitudinal passages 1012 respectively. The transverse passage 1011 is arranged along the length direction of the first connection block 7, and the installation passage 71 is communicated with the transverse passage 1011. A second connection block 8 is provided between the first connection block 7 and the first fixture. The second passage 102 is provided on the second connection block 8, and the second passage 102 is communicated with the first passage 101. Specifically, the two second passages 102 are arranged in an "eight" shape inside the second connection block 8, and one ends of the two second passages 102 are communicated with the two longitudinal passages 1012 respectively. In order to enhance the sealing performance, sealing rings are provided for communicating the two second passages 102 with the two longitudinal passages 1012. The second connection block 8 is provided with two third passages 103. The third passages 103 penetrate through the second connection block 8, and the third passages 103 are actually in the structure of through holes. In order to make the structure more compact, the second connection block 8 is provided with a first receiving groove 81 and two second receiving grooves 82. The first receiving groove 81 is used for receiving the first pipeline 200, and the two second receiving grooves 82 are respectively used for receiving the water inlet pipeline 201 and the water outlet pipeline 202. The first passage 101 and the second passage 102 are groove structures provided on the components. Such a setting enables the transportation of the protective gas without additionally increasing components, further streamlining the structure of the equipment.

[0054] Please refer to Figures 7 - 9As shown, further, the second connecting block 8 is connected to a connecting plate assembly. The intake passage further includes two fourth passages disposed on the connecting plate assembly, and the two fourth passages are respectively communicated with the two third passages 103. Specifically, the connecting plate assembly includes a first connecting plate 16 and a second connecting plate 17. The first connecting plate 16 is disposed between the first fixture and the second fixture. The second connecting block 8 includes a connecting plate body 83. The first connecting plate 16 is connected to the connecting plate body 83. The second connecting plate 17 is disposed between the second fixture and the first connecting block 7. After the first connecting plate 16 and the second connecting plate 17 are connected, a first intake groove 1041 and a second intake groove 1042 are formed. The fourth passage includes the first intake groove 1041, the second intake groove 1042, and a first through hole 1043 penetrating the first connecting plate 16. The first through hole 1043 is disposed in the first intake groove 1041 and is communicated with the third passage 103. The shielding gas enters the first through hole 1043 from the third passage 103, and then enters the first intake groove 1041 and the second intake groove 1042 in sequence through the first through hole 1043. Preferably, a first rib is provided on the first connecting plate 16, and a second rib corresponding to the first rib is provided at a corresponding position of the second connecting plate 17. The contour of the second rib is adapted to that of the first rib. After the first connecting plate 16 and the second connecting plate 17 are connected, the first rib is located inside the second rib and the first rib fits with the second rib, and the first intake groove 1041 is surrounded by the first rib. A first recessed portion is provided on the second connecting plate 17, and notches are provided on the sides of the first rib and the second rib. The first recessed portion is disposed between the two first intake grooves 1041, and both ends of the first recessed portion are respectively communicated with the two notches. The first recessed portion is the second intake groove 1042. A first flow guiding structure 161 is provided on the first connecting plate 16. The first flow guiding structure 161 includes a concave structure and convex ribs disposed on both sides of the concave structure. A second flow guiding structure 171 is provided on the second connecting plate 17. The second flow guiding structure 171 is a recessed structure disposed above the second intake groove 1042. The recessed structure is communicated with the second intake groove 1042. A third flow guiding structure 51 is provided on the second lower plate body 5. The third flow guiding structure 51 is a sliding groove matching with the convex rib on the first connecting plate 16. After the first connecting plate 16 and the second lower plate body 5 are connected, the convex rib is located in the sliding groove. Since the first connecting plate 16 is provided with a concave structure, the gas flows from the concave structure to the welding space 18. The shielding gas flows from the first intake groove 1041 through the notch to the second intake groove 1042, then passes through the second flow guiding structure 171 and the concave structure in sequence, and finally enters the welding space 18. By providing a sliding groove on the second lower plate body 5, the guiding and conveying of the gas can be realized without increasing the thickness of the second lower plate body 5.

[0055] Please refer to Figure 11 and Figure 13As shown, specifically, the intake passage further includes a fifth passage. The fifth passage includes a second through hole 162 penetrating the first connection plate 16 and a third through hole 84 penetrating the second connection block 8. The shielding gas enters the first through hole 1043 from the third passage 103, and then enters the first intake groove 1041 from the first through hole 1043. Part of the shielding gas in the first intake groove 1041 enters the second intake groove 1042, and part enters the fifth passage. Specifically, the second through hole 162 is disposed in the first intake groove 1041 and above the first through hole 1043. More specifically, the second through hole 162 is almost at the same horizontal level as the notch on the first intake groove 1041. Part of the shielding gas in the first intake groove 1041 enters the second intake groove 1042, and part enters the second through hole 162, and then enters the third through hole 84 from the second through hole 162.

[0056] Furthermore, the intake passage further includes a sixth passage 105. The sixth passage 105 communicates with the third through hole 84. A cover plate 9 is connected to the connecting plate body 83. The second connection block 8, the cover plate 9, the first connection plate 16, and the second connection plate 17 are connected by bolts. The cover plate 9 is disposed below the first lower plate body 2. The sixth passage 105 is disposed on the cover plate 9. The sixth passage 105 is a strip-shaped recess disposed on the cover plate 9. After the second connection block 8 is connected to the cover plate 9, the side of the third through hole 84 close to the cover plate 9 falls into the strip-shaped recess. In this way, the gas can enter the strip-shaped recess from the third through hole 84. A fourth flow guiding structure 85 is disposed on the second connection block 8. A fifth flow guiding structure 91 is further disposed on the cover plate 9. A sixth flow guiding structure 213 is disposed on the first lower plate body 2. The fourth flow guiding structure 85 cooperates with the fifth flow guiding structure 91 and the sixth flow guiding structure 213 respectively to guide the gas in the sixth passage 105 into the welding space 18. It should be noted that the fourth flow guiding structure 85 is similar in structure to the first flow guiding structure 161. The fifth flow guiding structure 91 is disposed above the strip-shaped recess. The fifth flow guiding structure 91 is similar in structure to the second flow guiding structure 171. The sixth flow guiding structure 213 is similar in structure to the third flow guiding structure 51, and will not be elaborated here. The setting of the sixth flow guiding structure 213 enables the guiding and conveying of the gas without increasing the thickness of the first lower plate body 2.

[0057] It should be noted that the fifth passage and the sixth passage 105 are disposed on the same side, and the fourth passage is disposed on the other side, so that the shielding gas can enter the welding space 18 from both sides, and the shielding effect is better.

[0058] As Figure 1 shown, in order to facilitate workers to observe the welding condition, an observation window 10 is further disposed above the first connection plate 16.

[0059] The above has introduced the present application in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only for helping to understand the present application and its core idea. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present application, several improvements and modifications can also be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A welding device, characterized in that, It includes a clamping mechanism and a welding mechanism. The clamping mechanism is used to clamp the pipeline. The welding mechanism includes a welding space (18) and a welding head (15). The welding head (15) is arranged in the welding space (18), and the welding head (15) is used to weld the pipeline. The clamping mechanism includes a clamping opening, and the clamping opening is close to the welding space (18). The clamping mechanism is connected with a water cooling system. The water cooling system includes a heat conduction plate (14) and a water circulation pipeline. The heat conduction plate (14) is at least partially arranged at the position of the welding space (18), and the heat conduction plate (14) is used to conduct the heat generated during welding. The water circulation pipeline is connected with the heat conduction plate (14), and the water circulation pipeline is used to cool the heat conduction plate (14).

2. The welding device according to claim 1, characterized in that, The clamping mechanism includes a first fixture and a second fixture. The welding space (18) is arranged between the first fixture and the second fixture. The first fixture is used to clamp a first pipeline, and the second fixture is used to clamp a second pipeline. The first fixture and the second fixture are connected by a first connecting piece, and the heat conduction plate (14) is arranged between the first fixture and the second fixture.

3. The welding device according to claim 2, characterized in that, The clamping opening includes a first clamping opening (3). The first fixture includes a first upper plate body (1) and a first lower plate body (2). The first upper plate body (1) is provided with a first concave, and the first lower plate body (2) is provided with a second concave. After the first upper plate body (1) and the first lower plate body (2) are connected, the first clamping opening (3) is enclosed by the first concave and the second concave, and the first pipeline is clamped in the first clamping opening (3).

4. The welding device according to claim 3, characterized in that, At least two first protrusions (111) are arranged on the first concave. At least one first hollow structure (112) is arranged on the first upper plate body (1), and the first hollow structure (112) is communicated with the first concave. At least two second protrusions (211) are arranged on the second concave. At least one second hollow structure (212) is arranged on the first lower plate body (2), and the second hollow structure (212) is communicated with the second concave.

5. The welding equipment according to claim 2, wherein The clamping opening further includes a second clamping opening (6). The second fixture includes a second upper plate body (4) and a second lower plate body (5). The second upper plate body (4) is provided with a third concave, and the second lower plate body (5) is provided with a fourth concave. After the second upper plate body (4) and the second lower plate body (5) are connected, the second clamping opening (6) is enclosed by the third concave and the fourth concave, and the second pipeline is clamped in the second clamping opening (6).

6. The welding device according to claim 5, characterized in that, At least two third protrusions (41) are arranged on the third concave. At least one third hollow structure (42) is arranged on the second upper plate body (4), and the third hollow structure (42) is communicated with the third concave. At least two fourth protrusions (52) are arranged on the fourth concave. At least one fourth hollow structure (53) is arranged on the second lower plate body (5), and the fourth hollow structure (53) is communicated with the fourth concave.

7. The welding device according to claim 2, characterized in that, The water circulation pipeline includes a first pipeline (200), a water inlet pipeline (201) and a water outlet pipeline (202). The first pipeline (200) is arranged on the heat conducting plate (14). The water inlet pipeline (201) is used for connecting to a water source, and the water outlet pipeline (202) is used for draining water. The water inlet pipeline (201) and the water outlet pipeline (202) are arranged below the first pipeline (200), and the first pipeline (200) is respectively communicated with the water inlet pipeline (201) and the water outlet pipeline (202). The first pipeline (200) is arranged along the width direction of the heat conducting plate (14), and the water inlet pipeline (201) and the water outlet pipeline (202) are arranged in parallel.

8. The welding device according to claim 2, characterized in that, It further includes a gas protection system for providing a protective gas. The gas protection system includes a first air inlet pipeline (100) and an air inlet channel. One end of the first air inlet pipeline (100) is connected to a gas source, the other end of the first air inlet pipeline (100) is connected to the air inlet channel, the air inlet channel is communicated with the welding space (18), and the gas source flows to the welding space (18) through the air inlet channel.

9. The welding device according to claim 7 or 8, characterized in that, It further includes a housing, which includes a first housing (11) and a second housing (12). The first housing (11) and the first fixture are arranged on the same side, and the first housing (11) is arranged below the first fixture. The second housing (12) and the second fixture are arranged on the same side, and the second housing (12) is arranged below the second fixture. After the first housing (11) and the second housing (12) are closed, a receiving cavity is formed. At least part of the water inlet pipeline (201) and the water outlet pipeline (202) are arranged in the receiving cavity; at least part of the first air inlet pipeline (100) is arranged in the receiving cavity; a first connecting block (7) is arranged between the housing and the clamping mechanism, and at least part of the first connecting block (7) is located in the receiving cavity. The water inlet pipeline (201) and the water outlet pipeline (202) respectively pass through the first connecting block (7).

10. The welding device according to claim 9, wherein, The first air inlet pipeline (100) is arranged on the first connecting block (7). The air inlet channel includes a first channel (101), and the first channel (101) is arranged on the first connecting block (7). The first air inlet pipeline (100) is communicated with the first channel (101).

11. The welding device according to claim 10, characterized in that, The air inlet channel further includes at least one second channel (102). A second connecting block (8) is arranged between the first connecting block (7) and the first fixture. The second channel (102) is arranged on the second connecting block (8), and the second channel (102) is communicated with the first channel (101). The second connecting block (8) is provided with at least one third channel (103), and the third channel (103) penetrates through the second connecting block (8). The number of the third channels (103) is the same as that of the second channels (102), and the third channel (103) is communicated with the second channel (102).

12. The welding device according to claim 11, wherein, The second connecting block (8) is provided with a first receiving groove (81) and two second receiving grooves (82). The first receiving groove (81) is used for receiving the first pipeline (200), and the two second receiving grooves (82) are respectively used for receiving the water inlet pipeline (201) and the water outlet pipeline (202).

13. The welding device according to claim 11, wherein The second connecting block (8) is connected with a connecting plate assembly. The intake passage further includes at least one fourth passage provided on the connecting plate assembly, and the fourth passage communicates with the third passage (103).

14. The welding device according to claim 13, characterized in that The connecting plate assembly includes a first connecting plate (16) and a second connecting plate (17). The first connecting plate (16) is disposed between the first fixture and the second fixture, and the first connecting plate (16) is connected with the second connecting block (8). The second connecting plate (17) is disposed between the second fixture and the first connecting block (7). After the first connecting plate (16) and the second connecting plate (17) are connected, a first intake groove (1041) and a second intake groove (1042) are formed. The fourth passage includes the first intake groove (1041), the second intake groove (1042), and a first through hole (1043) penetrating the first connecting plate (16). The first through hole (1043) communicates with the third passage (103). The shielding gas enters the first through hole (1043) from the third passage (103), and then enters the first intake groove (1041) and the second intake groove (1042) in sequence from the first through hole (1043).

15. The welding device according to claim 14, characterized in that, A notch is formed on the side of the first intake groove (1041). The first intake groove (1041) and the second intake groove (1042) communicate through the notch. A first flow guiding structure (161) is provided on the first connecting plate (16), a second flow guiding structure (171) is provided on the second connecting plate (17), and a third flow guiding structure (51) is provided on the second lower plate body (5). The first flow guiding structure (161) cooperates with the second flow guiding structure (171) and the third flow guiding structure (51) respectively to introduce the gas in the second intake groove (1042) into the welding space (18).

16. The welding equipment according to claim 15, characterized in that, The intake passage further includes a fifth passage. The fifth passage includes a second through hole (162) penetrating the first connecting plate (16) and a third through hole (84) penetrating the second connecting block (8). The shielding gas enters the first through hole (1043) from the third passage (103), and then enters the first intake groove (1041) from the first through hole (1043). Part of the shielding gas in the first intake groove (1041) enters the second intake groove (1042), and part enters the fifth passage.

17. The welding device according to claim 16, characterized in that, The intake passage further includes a sixth passage (105). The sixth passage (105) communicates with the fifth passage. A cover plate (9) is connected to the second connecting block (8). The cover plate (9) is disposed below the first lower plate body (2). The sixth passage (105) is provided on the cover plate (9). A fourth flow guiding structure (85) is provided on the second connecting block (8), a fifth flow guiding structure (91) is further provided on the cover plate (9), and a sixth flow guiding structure (213) is provided on the first lower plate body (2). The fourth flow guiding structure (85) cooperates with the fifth flow guiding structure (91) and the sixth flow guiding structure (213) respectively to introduce the gas in the sixth passage (105) into the welding space (18).

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