A smokeless welding device for GLS shell welding

Abstract

The present invention relates to the technical field of shell welding, and specifically to a smokeless welding device for GLS shell welding, comprising a welding equipment base, one side of the welding equipment base is provided with a Y-axis moving component, and one side of the Y-axis moving component is provided with a Z-axis moving component, and the beneficial effects are: by designing a weld positioning component to cooperate with a rotating component of a workpiece, during the annular welding process of the workpiece, the welding area is closed, and at the same time, flux is introduced so that the flux is evenly laid in the welding area to form a stable welding layer, so that the welding wire completes the welding process under the protection of the flux layer, ensuring that the welding wire can accurately enter the molten pool, and the arc is completely covered by the flux layer, reducing the influence of air on the molten pool, and by introducing the flux layer, harmful gases and smoke generated during the welding process can be effectively absorbed, and the effective protection of the flux layer and the timely cleaning of the welding slag reduce the generation of harmful smoke and particulate matter, improve the working environment, and achieve smokeless welding.

Description

Technical Field

[0001] The invention belongs to the technical field of shell welding, and in particular relates to a smokeless welding device for GLS shell welding. Background Art

[0002] The GIS (gas insulated switchgear) housing is a key structure for accommodating and protecting the internal components of GIS, ensuring its safe and reliable operation in high-voltage power systems. In order to meet the modular design of GIS equipment and facilitate transportation, installation and maintenance, welding flanges are usually required at the housing ports. In order to ensure that the housing can provide an almost completely leak-free sealing effect, the connection between the flange and the housing needs to form a continuous weld by molten metal. In the prior art, the annular seam welding is generally carried out by welding with a welding gun and a rotating center. The welding gun is greatly deformed by heat and wears very quickly. The consistency of the wire angle cannot be guaranteed, making the weld discontinuous and affecting the welding quality.

[0003] The existing Chinese patent document with publication number CN215280320U proposes an arc welding device, which solves the above technical problems by improving the welding nozzle so that the wire tip of the welding wire forms a certain angle with the flat end surface to ensure that the arc molten pool is always at the angle between the flat end surface and the horizontal weld. However, welding still mainly relies on the rotation of the welding gun. Since the position of the welding gun is constantly changing, welding parameters (such as current, voltage, speed, etc.) may be affected, resulting in unstable welding quality.

[0004] Therefore, the present invention proposes a smokeless welding device for GLS shell welding, which solves the problem that the welding gun position of the welding device in the prior art is constantly changing, the welding parameters may be affected and the welding quality is unstable. The shell workpiece rotating assembly is designed to cooperate with the weld positioning assembly, and flux is introduced to achieve uniform circumferential seam smokeless welding of the workpiece, thereby improving the welding quality of the GLS shell. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a smokeless welding device for GLS shell welding to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a smokeless welding device for GLS shell welding, comprising a welding equipment base, a Y-axis moving component is arranged on one side of the welding equipment base, a Z-axis moving component is arranged on one side of the Y-axis moving component, a welding control equipment mounting mobile platform is arranged on the front side of the Z-axis moving component, a welding control equipment is fixedly installed on the side surface of the welding control equipment mounting mobile platform, a welding nozzle is fixedly installed on the output end of the welding control equipment, a welding wire is arranged inside the welding nozzle, a welding wire conveying component adapted to the welding wire is arranged on one side of the welding control equipment, a shell workpiece rotating mounting platform is arranged above the welding equipment base, a weld positioning assembly is arranged at the front end of the shell workpiece rotating mounting platform, and the weld positioning assembly includes a protective shell and a flux injection box.

[0007] Preferably, the flux injection box is arranged above the protective shell, a flux injection nozzle is fixedly installed on the bottom of the inner wall of the flux injection box, the bottom of the flux injection nozzle is fixedly connected to the top of the protective shell, a molten pool closed cavity is fixedly installed on the inner surface of the protective shell, and the flux injection nozzle is arranged in the upper middle part of the molten pool closed cavity.

[0008] Preferably, a contact nozzle protection baffle is rotatably installed on the inner side of the molten pool enclosed cavity, a welding wire groove is arranged in the middle of the contact nozzle protection baffle, weld limiting strips are symmetrically arranged on both sides of the molten pool enclosed cavity, a plastic extrusion strip is fixedly installed on the outer surface of the weld limiting strip, and the outer surface of the plastic extrusion strip is fixedly connected to the inner surface of the protective shell.

[0009] Preferably, heat dissipation grooves are evenly opened on both sides of the rear wall of the protective shell, a contact nozzle movable groove is opened on the top of the rear wall of the protective shell, weld scrapers are evenly distributed on the inner surface of the weld limiting strip, and a weld limiting groove is opened on the bottom of one side of the weld scraper.

[0010] Preferably, a sealing plate is fixedly installed on the outside of the welding nozzle, rubber pads adapted to the movable groove of the contact nozzle are fixedly installed on both sides of the sealing plate, an extrusion push block is symmetrically hingedly installed below the sealing plate, and a card slot adapted to the extrusion push block is provided on the inner wall of the protective shell.

[0011] Preferably, a telescopic rod is fixedly installed above the shell workpiece rotating mounting platform, one end of the telescopic rod is fixedly connected to the side surface of the flux injection box, a workpiece protection ring is fixedly installed on the rear inner surface of the protective shell, and a rolling ball is movably installed inside the workpiece protection ring.

[0012] Preferably, a motor is fixedly installed on the rear side wall of the shell workpiece rotary mounting platform, a shell fixing plate is provided on the front side of the shell workpiece rotary mounting platform, a rotating shaft of the shell fixing plate is fixedly connected to the output shaft of motor one by bolts, a protective shell is fixedly installed on the front side of the shell fixing plate by bolts, and a flange fixing sleeve mounting shaft is fixedly installed in the middle of the protective shell.

[0013] Preferably, a flange fixing sleeve is fixedly mounted on the outer surface of the flange fixing sleeve mounting shaft via threads, a flange fixing plate is fixedly mounted on one end of the flange fixing sleeve, and a fixing bolt is arranged on the side surface of the flange fixing plate.

[0014] Preferably, the side surface of the protective shell is evenly distributed with opposite shell inner wall clamps, the side surface of the protective shell is provided with a limiting slide groove adapted to the opposite shell inner wall clamp, and a small rack is arranged behind the opposite shell inner wall clamp.

[0015] Preferably, a pinion is rotatably mounted on the front surface of the housing fixing plate, and the side surfaces of the pinion are respectively meshed with the side surfaces of the small rack. A gear ring is also rotatably mounted on the front surface of the pinion, and the inner surface of the gear ring is meshed with the side surface of the pinion. A small motor that drives one group of the pinions to rotate is fixedly mounted on the rear surface of the housing fixing plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] By designing a weld positioning assembly to cooperate with a rotating assembly of the workpiece, the welding area is closed during the annular welding of the workpiece, and flux is introduced to evenly spread the flux in the welding area to form a stable welding layer, so that the welding wire completes the welding process under the protection of the flux layer, ensuring that the welding wire can accurately enter the molten pool and the arc is completely covered by the flux layer, reducing the influence of air on the molten pool. By introducing the flux layer, the harmful gas and smoke generated during the welding process can be effectively absorbed. The effective protection of the flux layer and the timely cleaning of the welding slag reduce the generation of harmful smoke and particulate matter, improve the working environment, achieve smokeless welding, and reduce the impact on the environment. At the same time, the weld limit strip is used to contact and limit the weld seam that has been formed by welding under the extrusion action of the plastic extrusion strip during the rotation of the workpiece, the weld scraper scrapes the weld slag, and the weld limit groove performs thermoplasticity on the weld during the rotation of the workpiece, so that the weld is evenly formed and the connection to the workpiece is strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall front structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall rear side structure of the present invention;

[0020] Figure 3 It is a schematic diagram of the rear structure of the housing workpiece rotary mounting platform of the present invention;

[0021] Figure 4 It is a schematic diagram of the front side structure of the housing workpiece rotary mounting platform of the present invention;

[0022] Figure 5 It is a schematic diagram of the side cross-sectional structure of the weld positioning assembly of the present invention;

[0023] Figure 6 It is a schematic diagram of the front structure of the protective shell of the present invention;

[0024] Figure 7 It is a schematic diagram of the rear structure of the protective shell of the present invention;

[0025] Figure 8 It is a schematic structural diagram of the contact state between the weld limit strip and the weld of the present invention;

[0026] Fig. 9 It is a schematic structural diagram of the housing and flange installation state of the present invention;

[0027] Fig.10 This is a schematic diagram of the structure after the closed limiting cover of the present invention is removed;

[0028] Fig.11 It is a schematic diagram of the rear side structure of the housing fixing plate of the present invention;

[0029] Fig.12 It is a schematic diagram of the disassembled structure of the housing fixing plate of the present invention;

[0030] Fig.13 It is a schematic diagram of the driving structure of the clamping block on the inner wall of the opposite shell of the present invention;

[0031] Fig.14 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0032] Fig.15 For the present invention Figure 5 Schematic diagram of the enlarged structure at B.

[0033] In the figure: 1. welding equipment base; 2. Y-axis moving part; 3. Z-axis moving part; 4. welding control equipment installation moving platform; 41. welding control equipment; 42. welding wire feeding part; 43. welding nozzle; 431. welding wire; 5. shell workpiece rotation installation platform; 51. motor 1; 52. flange fixing sleeve installation shaft; 53. flange fixing sleeve; 531. flange fixing plate; 532. fixing bolt; 54. shell fixing plate; 541. protective shell; 542. opposite shell inner wall clamp; 5421. small rack; 543. small gear; 544. gear ring; 545. small motor; 5 5. Closed limit cover; 6. Weld positioning assembly; 61. Protective shell; 611. Heat dissipation slot; 6111. Contact nozzle movable slot; 612. Molten pool closed cavity; 6121. Contact nozzle protection baffle; 6122. Welding wire slot; 613. Weld limit strip; 6131. ​​Weld scraper; 6132. Weld limit slot; 614. Molding extrusion strip; 62. Flux injection box; 621. Flux injection nozzle; 63. Telescopic rod; 64. Workpiece protection ring; 641. Rolling ball; 65. Sealing piece; 651. Rubber pad; 652. Extrusion push block; 7. Shell workpiece; 71. Flange; 72. Weld. DETAILED DESCRIPTION

[0034] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1

[0036] See also Figures 1 to 15The present invention provides a technical solution: a smokeless welding device for GLS shell welding, comprising a welding equipment base 1, a Y-axis moving component 2 is arranged on one side of the welding equipment base 1, a Z-axis moving component 3 is arranged on one side of the Y-axis moving component 2, a welding control equipment installation mobile platform 4 is arranged on the front side of the Z-axis moving component 3, a welding control equipment 41 is fixedly installed on the side surface of the welding control equipment installation mobile platform 4, a welding nozzle 43 is fixedly installed on the output end of the welding control equipment 41, a welding wire 431 is arranged inside the welding nozzle 43, a welding wire conveying component 42 adapted to the welding wire 431 is arranged on one side of the welding control equipment 41, a shell workpiece rotating installation platform 5 is arranged above the welding equipment base 1, a weld positioning component 6 is arranged at the front end of the shell workpiece rotating installation platform 5, the weld positioning component 6 comprises a protective shell 61 and a flux injection box 62, the flux injection box 62 is arranged above the protective shell 61, and the bottom of the inner wall of the flux injection box 62 A flux injection nozzle 621 is fixedly installed, the bottom of the flux injection nozzle 621 is fixedly connected to the top of the protective shell 61, a molten pool closed cavity 612 is fixedly installed on the inner surface of the protective shell 61, the flux injection nozzle 621 is arranged in the upper middle part of the molten pool closed cavity 612, a contact nozzle protection baffle 6121 is rotatably installed on the inner side of the molten pool closed cavity 612, a welding wire groove 6122 is arranged in the middle of the contact nozzle protection baffle 6121, and weld limit strips are symmetrically arranged on both sides of the molten pool closed cavity 612 613, a plastic extrusion strip 614 is fixedly installed on the outer surface of the weld limit strip 613, and the outer surface of the plastic extrusion strip 614 is fixedly connected to the inner surface of the protective shell 61, heat dissipation grooves 611 are evenly opened on both sides of the rear wall of the protective shell 61, and a contact nozzle movable groove 6111 is opened on the top of the rear wall of the protective shell 61. Weld scrapers 6131 are evenly distributed on the inner surface of the weld limit strip 613, and a weld limit groove 6132 is opened at the bottom of one side of the weld scraper 6131;

[0037] In this embodiment, the shell workpiece rotary installation platform 5 is used to fix the shell workpiece 7 and the flange 71. After the flange 71 and the weld 72 are installed, the telescopic rod 63 pushes the flux injection box 62 to move the protective shell 61 to the connection between the shell workpiece 7 and the flange 71, and the welding area is positioned. The welding equipment base 1 and the Y-axis moving component 2 cooperate to enable the Z-axis moving component 3 to move forward and backward. The welding control equipment installation mobile platform 4 plays the role of installing the welding wire feeding component 42 and the welding control equipment 41. The Z-axis moving component 3 can drive the welding control equipment installation mobile platform 4 to move up and down, so that the welding control equipment installation mobile platform 4 can adjust the position, and the welding nozzle 43 is inserted into the protective shell 61 through the contact nozzle movable groove 6111. In the molten pool closed cavity 612, the welding wire conveying component 42 feeds the welding wire 431 into the welding area at a constant speed, and the welding wire passes through the conductive nozzle inside the welding nozzle 43. Under the control of the welding control device 41, the conductive nozzle transmits the current to the welding wire, thereby generating an arc. The welding nozzle 43 ensures that the welding wire can be correctly melted under the flux layer and form a good weld 72 between the flange 71 and the shell workpiece 7, so that the shell workpiece 7 and the flange 71 are welded together, and at the same time, the shell workpiece rotary mounting platform 5 cooperates with the rotation of the flange 71 and the shell workpiece 7 to complete the annular welding of the shell workpiece 7 and the flange 71. The protective shell 61 closes the welding area, and the flux is injected through the flux injection box 62 and the flux injection nozzle 621. The molten pool closed cavity 612 realizes the flux injection. The line guidance allows the flux to be evenly laid and covered on the welding area, ensuring that the thickness of the flux layer is consistent so that the flux can evenly cover the welding area to form a stable flux layer. The welding wire 431 will complete the welding process under the protection of the flux layer, ensuring that the welding wire can accurately enter the molten pool and the arc is completely covered by the flux layer, reducing the impact of air on the molten pool. The introduction of the flux layer can effectively absorb the harmful gases and smoke generated during the welding process. The effective protection of the flux layer and the timely cleaning of the welding slag reduce the generation of harmful smoke and particulate matter, improve the working environment, achieve smokeless welding, and reduce the impact on the environment. The existence of the flux layer makes the arc completely shielded, reducing the impact of oxygen and nitrogen in the air on the molten pool, ensuring the stable combustion of the arc, and reducing spatter. The weld limit strip 613 contacts and limits the weld seam formed by welding under the extrusion of the plastic extrusion strip 614 during the rotation of the workpiece. The weld scraper 6131 scrapes off the weld slag of the weld. The weld limit groove 6132 performs thermoplasticity on the weld during the rotation of the workpiece to form the weld uniformly and strengthen the connection between the shell workpiece 7 and the flange 71. During the rotation of the workpiece, the formed weld is contacted and limited by the extrusion to ensure that the weld position is fixed to avoid displacement or deformation. After welding, the weld slag on the surface of the weld is cleaned immediately to simplify the subsequent processing steps, enhance the strength and flatness of the weld, and promote a good connection between the weld and the workpiece. The heat dissipation groove 611 accelerates the heat dissipation.The heat affected zone of welding is reduced, and the risk of thermal stress and deformation is reduced. The stable burning of the arc under the protection of the flux layer and the subsequent thermoplastic treatment ensure the formation of a strong metallurgical bond between the weld and the workpiece, and enhance the overall performance of the weld. Cooling helps to optimize the microstructure of the weld and improve its hardness and toughness.

[0038] Embodiment 2

[0039] See also Figures 1 to 15 On the basis of the first embodiment, in order to enhance the sealing property of the protective shell 61, the present embodiment further proposes that a sealing sheet 65 is fixedly installed on the outside of the welding nozzle 43, and rubber pads 651 matching the movable groove 6111 of the contact nozzle are fixedly installed on both sides of the sealing sheet 65, and an extrusion push block 652 is symmetrically hingedly installed below the sealing sheet 65, and a card slot matching the extrusion push block 652 is provided on the inner side wall of the protective shell 61, and a telescopic rod 63 is fixedly installed above the shell workpiece rotary mounting platform 5, and one end of the telescopic rod 63 is fixedly connected to the side surface of the flux injection box 62, and a workpiece protection ring 64 is fixedly installed on the inner surface of the rear side of the protective shell 61, and a rolling ball 641 is movably installed inside the workpiece protection ring 64;

[0040] In this embodiment, when the telescopic rod 63 extends into the molten pool closed cavity 612 through the contact nozzle movable groove 6111, the rubber pads 651 on both sides of the sealing sheet 65 can engage and seal the heat dissipation groove 611, and at the same time, one side of the extrusion push block 652 will be inserted into the groove inside the protective shell 61 to stabilize the welding nozzle 43, and the extrusion push block 652 on the other side will push and squeeze the contact nozzle protection baffle 6121 to flip and tilt toward one side of the flange 71, and the welding wire 431 will pass through the welding wire groove 6122 and be buried under the flux layer. The flipping and tilting of the contact nozzle protection baffle 6121 also guides the flux injected by the flux injection nozzle 621, so that the flux can be evenly covered in the welding area. In addition, the tilting of the contact nozzle protection baffle 6121 can also provide a certain degree of heat insulation protection for the telescopic rod 63, avoid deformation of the telescopic rod 63, and extend the service life of the telescopic rod 63.

[0041] Embodiment 3

[0042] See also Figures 1 to 15On the basis of the second embodiment, in order to enable the shell workpiece 7 to rotate in coordination, the present embodiment further proposes that a motor 51 is fixedly installed on the rear side wall of the shell workpiece rotary mounting platform 5, a shell fixing plate 54 is arranged on the front side of the shell workpiece rotary mounting platform 5, the rotating shaft of the shell fixing plate 54 is fixedly connected with the output shaft of the motor 51 by bolts, a protective shell 541 is fixedly installed on the front side of the shell fixing plate 54 by bolts, a flange fixing sleeve mounting shaft 52 is fixedly installed in the middle of the protective shell 541, a flange fixing sleeve 53 is fixedly installed on the outer surface of the flange fixing sleeve mounting shaft 52 by threads, a flange fixing sleeve 53 is fixedly installed on one end of the flange fixing sleeve 53, and a flange fixing plate 531 is fixedly installed on the side surface of the flange fixing plate 531 The fixing bolt 532, the side surface of the protective shell 541 is evenly distributed with the shell inner wall clamping blocks 542, the side surface of the protective shell 541 is provided with a limiting slide groove adapted to the shell inner wall clamping blocks 542, and a small rack 5421 is arranged behind the shell inner wall clamping blocks 542. The front side surface of the shell fixing plate 54 is rotatably mounted with a small gear 543, and the side surfaces of the small gear 543 are respectively meshed with the side surfaces of the small rack 5421. The front side surface of the small gear 543 is also rotatably mounted with a gear ring 544, and the inner side surface of the gear ring 544 is meshed with the side surface of the small gear 543. The rear side surface of the shell fixing plate 54 is fixedly mounted with a small motor 545 that drives one group of the small gears 543 to rotate;

[0043] In this embodiment, a closed limiting cover 55 is designed on the outside of the shell fixing plate 54 and the protective shell 541, and the closed limiting cover 55 is fixed to the front side of the motor 51 by bolts, so as to play a role of closing and protecting the shell fixing plate 54 and the protective shell 541, and one end of the shell workpiece 7 is placed between the clamping block 542 facing the inner wall of the shell. At this time, the flange fixing sleeve installation shaft 52 is inserted into the interior of the shell workpiece 7, and the small motor 545 drives one group of pinion gears 543 to rotate. The pinion gears 543 make all the pinion gears 543 rotate synchronously with the cooperation of the ring gear 544, because the small rack 5421 is engaged with the pinion gear 543, the small rack 5421 is tightened synchronously under the rotation of the pinion gear 543, and the clamping block 542 facing the inner wall of the shell clamps the side wall of the shell workpiece 7, and at the same time, the position of the shell workpiece 7 is adjusted to make it in the center, and then the flange 71 is passed through the flange fixing sleeve 53, and finally the flange fixing sleeve 53 is rotatably installed on the flange fixing The front end of the sleeve installation shaft 52 is installed to make the flange 71 close to the shell workpiece 7, and the flange 71 is fixed to the flange fixing plate 531 with the fixing bolts 532 to complete the fixation of the shell workpiece 7 and the flange 71. The installation is simple and convenient. At this time, the motor 51 can drive the shell workpiece 7 and the flange 71 to rotate as a whole, and cooperate with the welding control equipment 41, the welding wire feeding component 42, the welding nozzle 43 and the weld positioning component 6 to complete the annular welding between the shell workpiece 7 and the flange 71, ensuring that the welding nozzle 43 always moves along the predetermined weld path, that is, reducing the deviation to avoid weld offset, and ensuring stable welding parameters for welding, such as current, voltage, speed, etc., which can be kept consistent throughout the welding process, thereby improving the welding quality. The rotary welding is combined with the protective shell 61 to maintain the optimal molten pool dynamics, make the metal flow smoother, promote weld formation, reduce spatter, and achieve a circle of continuous welding without frequent stopping and restarting, thereby improving the welding speed.

[0044] Embodiment 4

[0045] See also Figures 1 to 15 On the basis of the third embodiment, this embodiment further proposes a welding method for a smokeless welding device for GLS shell welding, comprising the following steps:

[0046] Step 1: Install the shell workpiece 7 and the flange 71, place one end of the shell workpiece 7 between the opposite shell inner wall clamping block 542, and tighten the small rack 5421 synchronously through the cooperation of the small motor 545, the gear ring 544, and the small gear 543, and clamp the side wall of the shell workpiece 7 against the opposite shell inner wall clamping block 542. After the flange 71 passes through the flange fixing sleeve 53, the flange fixing sleeve 53 is rotatably installed on the front end of the flange fixing sleeve installation shaft 52, so that the flange 71 is tightly attached to the shell workpiece 7, and the flange 71 is fixed to the flange fixing plate 531 with the fixing bolts 532, and the fixing of the shell workpiece 7 and the flange 71 is completed;

[0047] Step 2: Position and move the protective shell 61. The telescopic rod 63 pushes the flux injection box 62 to move the protective shell 61 to the connection between the shell workpiece 7 and the flange 71, and the welding area is positioned. The flux injection box 62 injects flux to evenly fill and lay the flux inside the molten pool closed cavity 612.

[0048] Step three, perform circular welding, the Z-axis moving component 3 and the welding control device installation moving platform 4 can adjust the position, the welding nozzle 43 is extended into the molten pool closed cavity 612 in the protective shell 61 through the contact nozzle movable groove 6111, the welding wire feeding component 42 feeds the welding wire 431 into the welding area at a constant speed, the welding wire passes through the conductive nozzle inside the welding nozzle 43, and the conductive nozzle transmits the current to the welding wire under the control of the welding control device 41, thereby generating an arc, and the welding nozzle 43 ensures that the welding wire can be correctly melted under the flux layer and form a good weld 72 between the flange 71 and the shell workpiece 7, and the shell workpiece 7 and the flange 71 are welded together, and at the same time, the motor 51 is cooperated to work to make the flange 71 and the shell workpiece 7 rotate at a low speed, so as to complete the circular welding of the shell workpiece 7 and the flange 71;

[0049] Step 4. After welding is completed, the motor 51 stops, the welding nozzle 43 leaves the molten pool closed cavity 612, the telescopic rod 63 pulls the protective shell 61 out of the welding area, removes the fixing bolt 532, rotates in the opposite direction to remove the flange fixing sleeve 53 and the flange fixing plate 531, and then starts the small motor 545 to make the opposite shell inner wall clamp 542 loosen the workpiece, and directly pull out the welded shell workpiece.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smokeless welding device for GLS shell welding, comprising a welding device base (1), a Y-axis moving component (2) is arranged on one side of the welding device base (1), a Z-axis moving component (3) is arranged on one side of the Y-axis moving component (2), a welding control device mounting mobile platform (4) is arranged on the front side of the Z-axis moving component (3), a welding control device (41) is fixedly mounted on the side surface of the welding control device mounting mobile platform (4), a welding nozzle (43) is fixedly mounted on the output end of the welding control device (41), a welding wire (431) is arranged inside the welding nozzle (43), a welding wire conveying component (42) adapted to the welding wire (431) is arranged on one side of the welding control device (41), and characterized in that: A shell workpiece rotary mounting platform (5) is arranged above the welding equipment base (1), a weld positioning assembly (6) is arranged at the front end of the shell workpiece rotary mounting platform (5), and the weld positioning assembly (6) comprises a protective shell (61) and a flux injection box (62), the flux injection box (62) is arranged above the protective shell (61), a flux injection nozzle (621) is fixedly installed at the bottom of the inner wall of the flux injection box (62), the bottom of the flux injection nozzle (621) is fixedly connected to the top of the protective shell (61), and a molten pool sealing member is fixedly installed on the inner surface of the protective shell (61). The flux injection nozzle (621) is arranged in the upper middle part of the molten pool closed cavity (612), a contact nozzle protection baffle (6121) is rotatably installed on the inner side of the molten pool closed cavity (612), a welding wire groove (6122) is arranged in the middle part of the contact nozzle protection baffle (6121), weld limit strips (613) are symmetrically arranged on both sides of the molten pool closed cavity (612), and a plastic extrusion strip (614) is fixedly installed on the outer surface of the weld limit strip (613), and the outer surface of the plastic extrusion strip (614) is fixedly connected to the inner surface of the protective shell (61).

2. A smokeless welding device for GLS shell welding according to claim 1, characterized in that: Heat dissipation grooves (611) are evenly provided on both sides of the rear wall of the protective shell (61), a contact nozzle movable groove (6111) is provided on the top of the rear wall of the protective shell (61), weld scrapers (6131) are evenly distributed on the inner surface of the weld limiting strip (613), and a weld limiting groove (6132) is provided on the bottom of one side of the weld scraper (6131).

3. A smokeless welding device for GLS shell welding according to claim 1, characterized in that: A sealing sheet (65) is fixedly installed on the outside of the welding nozzle (43), and rubber pads (651) adapted to the movable groove (6111) of the contact nozzle are fixedly installed on both sides of the sealing sheet (65), and an extrusion push block (652) is symmetrically hingedly installed below the sealing sheet (65), and a card slot adapted to the extrusion push block (652) is provided on the inner wall of the protective shell (61).

4. A smokeless welding device for GLS shell welding according to claim 1, characterized in that: A telescopic rod (63) is fixedly installed above the shell workpiece rotating installation platform (5), one end of the telescopic rod (63) is fixedly connected to the side surface of the flux injection box (62), and a workpiece protection ring (64) is fixedly installed on the rear inner surface of the protective shell (61), and a rolling ball (641) is movably installed inside the workpiece protection ring (64).

5. A smokeless welding device for GLS shell welding according to claim 1, characterized in that: A motor 1 (51) is fixedly mounted on the rear side wall of the shell workpiece rotary mounting platform (5), a shell fixing plate (54) is arranged on the front side of the shell workpiece rotary mounting platform (5), a rotating shaft of the shell fixing plate (54) is fixedly connected to the output shaft of the motor 1 (51) by bolts, a protective shell (541) is fixedly mounted on the front side of the shell fixing plate (54) by bolts, and a flange fixing sleeve mounting shaft (52) is fixedly mounted in the middle of the protective shell (541).

6. A smokeless welding device for GLS shell welding according to claim 5, characterized in that: A flange fixing sleeve (53) is fixedly mounted on the outer surface of the flange fixing sleeve mounting shaft (52) via threads, a flange fixing plate (531) is fixedly mounted on one end of the flange fixing sleeve (53), and a fixing bolt (532) is disposed on the side surface of the flange fixing plate (531).

7. A smokeless welding device for GLS shell welding according to claim 5, characterized in that: The side surface of the protective shell (541) is evenly distributed with the shell inner wall clamping blocks (542), and the side surface of the protective shell (541) is provided with a limiting sliding groove matched with the shell inner wall clamping blocks (542), and a small rack (5421) is arranged behind the shell inner wall clamping blocks (542).

8. A smokeless welding device for GLS shell welding according to claim 7, characterized in that: A pinion gear (543) is rotatably mounted on the front side surface of the housing fixing plate (54), and the side surfaces of the pinion gear (543) are respectively meshed with the side surfaces of the small rack (5421). A gear ring (544) is also rotatably mounted on the front side surface of the pinion gear (543), and the inner surface of the gear ring (544) is meshed with the side surface of the pinion gear (543). A small motor (545) for driving one group of the pinion gears (543) to rotate is fixedly mounted on the rear side surface of the housing fixing plate (54).

Images