Nickel base alloy pipe electric arc welding device

Abstract

The invention relates to the technical field of electric arc welding, in particular to a nickel-based alloy pipe electric arc welding device which comprises two nickel-based alloy pipes to be welded, a pipe passing mechanism, a welding seam regulating and controlling mechanism arranged on the pipe passing mechanism, a pipe fitting rotating mechanism arranged on the welding seam regulating and controlling mechanism and a welding rod angle adjusting mechanism arranged on the pipe fitting rotating mechanism. And the two nickel-based alloy pipes are positioned in the welding seam regulation and control mechanism. Two clay sculpture backing rings which are symmetrically distributed are arranged at the end openings of two to-be-welded pipe fittings, and the two clay sculpture backing rings are adjusted to be folded towards the butt-joint end openings of the two pipe fittings till the two clay sculpture backing rings are shrunk into a gap matched with a guide welding rod. And at the moment, the two widened clay sculpture backing rings can provide anti-shake protection for the gradually-reduced welding rod, so that the welding rod is prevented from shaking in the gradual shortening period, and then irregular shaking of two pipe fitting ports in the welding process is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of arc welding, in particular to an arc welding device for a nickel-based alloy pipe. Background Art

[0002] Arc welding is the most widely used welding method in industrial production. The metal to be welded is used as one electrode and the welding rod is used as the other electrode. An arc is generated when the two electrodes are close to each other. The heat generated by the arc discharge (commonly known as arc combustion) is used to melt the welding rod and the workpiece together and form a weld after condensation, thereby obtaining a strong joint in the welding process.

[0003] At present, in order to improve welding quality and welding efficiency, mechanical automatic welding methods have gradually replaced traditional manual welding methods. However, mechanical welding methods also have many defects. According to application number 202311677392.0, an arc welding device and an arc welding method, which use the coordinated operation of a shell component, a drive component, two transmission clamping components, two stabilizing components and a welding component to a certain extent avoid oxidation, impurities and brittleness during welding. While protecting the welding equipment, it can also guide the inert gas to protect the weld, thereby improving the weld quality and cooling effect. However, there are still certain defects in the above application documents. When the welding rod continues to decrease along the weld joint of the workpiece, the workpiece port will shake irregularly due to the interference of the welding rod and its own decreasing length. At the same time, as the molten material tends to accumulate, the part of the pipe wall away from the port will be contaminated.

[0004] In view of this, a nickel-based alloy pipe arc welding device is designed to solve the above problems. Summary of the invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technology.

[0006] To this end, the technical solution adopted in the present invention is: A nickel-based alloy pipe arc welding device comprises two nickel-based alloy pipes to be welded and a pipe delivery mechanism, a weld seam regulating mechanism arranged on the pipe delivery mechanism, a pipe fitting rotating mechanism arranged on the weld seam regulating mechanism, and a welding rod angle adjustment mechanism arranged on the pipe fitting rotating mechanism, wherein the two nickel-based alloy pipes are located in the weld seam regulating mechanism; the pipe delivery mechanism is used to provide a stable calibration docking platform for the two nickel-based alloy pipes; the weld seam regulating mechanism comprises two groups of limit assemblies, a traction assembly arranged on the two groups of limit assemblies, two bases arranged in the two groups of limit assemblies, a bottom chuck and a top chuck arranged on the base, and a clay pad ring arranged in the bottom chuck and the top chuck after the combination; two guide members symmetrically distributed in the horizontal direction are arranged outside the two clay pad rings, and the guide members are used to provide pressure clamping for the nickel-based alloy pipe and reduce the friction resistance of the nickel-based alloy pipe delivery rotation; the pipe fitting rotating mechanism is used to provide a uniform speed drive for the two nickel-based alloy pipes; the welding rod angle adjustment mechanism is used to provide an angle adjustment platform for welding rods, cleaning equipment and testing equipment.

[0007] In a preferred example, the present invention can be further configured as follows: the welding rod angle adjustment mechanism includes a cushion member arranged in the bottom chuck and the top chuck, an inclined rod movably mounted on the cushion member, a position control outer frame movably mounted on the other end of the inclined rod, two bolts arranged in the position control outer frame, a sheath movably mounted inside the position control outer frame, two horizontally extended beams mounted on the position control outer frame, an auxiliary pressure plate movably mounted on the two extended beams, and a second spring arranged at the other end of the extended beam and bearing pressure on the auxiliary pressure plate; The bottom end of one of the bolts is pressed against the top of the sheath, and the top end of the other bolt is pressed against the bottom of the sheath. The two bolts are used to control the inclination angle of the through hole in the sheath.

[0008] In a preferred example, the present invention can be further configured as follows: the limiting assembly includes a backing plate, a slide groove is provided inside the backing plate, a plug rod is provided inside the slide groove, and a tension spring is provided outside the plug rod; The base is movably installed in the slide groove, and the insertion rod is inserted into the interior of the tension spring to provide stability protection for the lateral sliding of the base; The traction assembly includes a fixed cover mounted on the pad, a hydraulic component mounted in two fixed covers, an end mounted on a hydraulic sub-rod in the hydraulic component, two pull rods movably connected at both ends of the end, and a conversion joint movably mounted on the other end of the pull rod; The adapter is mounted on the backing plate.

[0009] In a preferred example, the present invention can be further configured as follows: the tube delivery mechanism includes a loading assembly arranged on a workbench, two slide rails arranged on the loading assembly, a slider arranged in the slide rails, a first ring buckle installed on the slider, a second ring pad arranged directly above the first ring buckle, two positioning rods arranged in the first ring buckle and the second ring pad, four first springs arranged on the two positioning rods, and an anti-slip part installed on the first ring buckle.

[0010] In a preferred example, the present invention can be further configured as follows: the material loading assembly includes a bottom plate, two guard frames mounted on the top of the bottom plate, and a clamping seat mounted on the guard frames; Two rectangular baffles are arranged in the middle of the top surface of the bottom plate, and bearings are arranged in the two rectangular baffles and the two clamping seats, and the number of the bearings is four; A screw rod is arranged in the two bearings, and a deflection gear is arranged at the inner end of the screw rod, and the threaded section of the screw rod is adapted to the screw hole inside the slider; A chassis is installed on the top of the bottom plate, a motor is installed in the chassis and two support plates are installed on the top of the bottom plate.

[0011] In a preferred example, the present invention can be further configured as follows: a Z-shaped support rod is installed at the bottom of the first ring buckle; A hanging buckle is installed on the end column at the top of the second ring gasket; The anti-slip part is composed of a guide rod and an arc-shaped cushion block, and an arc groove adapted to the outer end port of the nickel-based alloy tube is opened on the inner side of the arc-shaped cushion block.

[0012] In a preferred example, the present invention can be further configured as follows: the inner walls of the bottom chuck and the top chuck are both provided with T-shaped ring grooves adapted to the gasket, and the bottom chuck and the top chuck are both made of stainless steel.

[0013] In a preferred example, the present invention can be further configured as follows: the weld seam regulating mechanism further includes two brackets and two covers, and the two guide members are respectively installed in the two sets of brackets and covers; The guide member is composed of a stainless steel gasket, a plurality of elliptical gaskets, a plurality of support plates and a plurality of inclined rollers, and the inclined rollers are inclined at an angle of forty-five degrees to the transverse tube wall of the nickel-based alloy tube.

[0014] In a preferred example, the present invention can be further configured as follows: the pipe rotating mechanism includes a truss arranged on two supports, two outer plates are arranged in the truss, a linkage shaft is arranged on the top of the two outer plates, two first gears and two external drive gears are installed at both ends of the linkage shaft, two screw sleeves are installed in the truss, and pre-tightening bolts are arranged in the screw sleeves and control the lifting and lowering of the outer plates, and a compression spring is arranged between the outer plates and the screw sleeves; A T-shaped shaft is installed at the bottom end of the outer plate, and a roller is movably installed on the T-shaped shaft; A second gear is installed at one end of the rotating roller, and a chain is transmission-connected between the first gear and the second gear.

[0015] In a preferred example, the present invention can be further configured as follows: the roller is made of rubber material, and the outside of the roller is provided with evenly distributed corrugated notches; The two external drive gears are used to connect the external drive device and provide a stable driving force for the two rollers, and are used to control the uniform rotation of the two nickel-based alloy tubes before and after welding.

[0016] By adopting the above technical solution, the beneficial effects achieved by the present invention are: 1. The present invention arranges two symmetrically distributed clay gaskets at the ports of two pipe fittings to be welded, and adjusts the two clay gaskets to converge toward the two pipe fitting docking ports until the gap between the two clay gaskets shrinks to a gap suitable for guiding the welding rod. At this time, the two widened clay gaskets can provide anti-shake protection for the gradually shortening welding rod, thereby avoiding shaking of the welding rod during the gradual shortening period, and further avoiding irregular shaking of the two pipe fitting ports during the welding process.

[0017] 2. The present invention arranges a welding rod angle adjustment mechanism on the basis of two clay plastic gaskets, and utilizes the welding rod angle adjustment mechanism as a bearing platform for arc welding. When the two pipe ends are welded, as the two clay plastic gaskets expand outward, the welding range of the two pipes can be expanded. After welding is completed, cleaning equipment and detection equipment are arranged in the welding rod angle adjustment mechanism. This process can provide an accurate detection platform for the weld joint after cleaning.

[0018] 3. The present invention arranges two chucks outside the clay gasket ring, and arranges the welding rod angle adjustment mechanism in the annular groove of the two chucks after assembly. At this time, the welding rod angle adjustment mechanism centered along the two clay gasket rings can provide inclination adjustment for the welding rod, cleaning equipment and testing equipment in the vertical direction, thereby avoiding the accumulation of molten material caused by improper placement of the welding rod, and further causing contamination to the pipe wall outside the pipe port. At the same time, the cleaning equipment and testing equipment with adjusted angles can selectively flush and test the weld. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front side of the present invention; Figure 2 It is a three-dimensional schematic diagram of the present invention; Figure 3 is a schematic diagram of the pipe delivery mechanism of the present invention; Figure 4 For the present invention Figure 3 The enlarged schematic diagram of point A in the middle; Figure 5 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle; Figure 6 For the present invention Figure 3 The enlarged schematic diagram of the center C; Figure 7 It is a bottom view schematic diagram of a part of the present invention; Figure 8 Schematic diagram of the weld seam control mechanism of the present invention; Fig. 9 For the present invention Figure 8 Explosion diagram of Fig.10 For the present invention Fig. 9 The enlarged schematic diagram of point D in the middle; Fig.11 It is a schematic diagram of the pipe rotating mechanism of the present invention; Fig.12 It is a schematic diagram of the welding rod angle adjustment mechanism of the present invention.

[0020] Reference numerals: 100, pipe delivery mechanism; 110, material loading assembly; 111, bottom plate; 112, guard frame; 113, support plate; 114, chassis; 115, motor; 116, clamp seat; 117, bearing; 118, screw rod; 120, slide rail; 130, slider; 140, first ring buckle; 150, second ring pad; 160, positioning rod; 170, first spring; 180, anti-slip member; 200, welding seam regulating mechanism; 210, limiting assembly; 211, pad; 212, plug rod; 213, tension spring; 220, traction assembly; 221, fixed cover; 222, hydraulic component; 223, end; 224, pull rod; 225, adapter; 230, base; 240, bottom chuck; 250, top chuck; 260, clay pad ring; 270, support frame; 280, cover; 290, guide piece; 300, pipe rotating mechanism; 310, truss; 320, screw sleeve; 330, pre-tightening bolt; 340, outer plate; 350, linkage shaft; 360, first gear; 370, rotating roller; 380, chain; 390, external drive gear; 400, welding rod angle adjustment mechanism; 410, cushion; 420, diagonal rod; 430, position control outer frame; 440, bolt; 450, sheath; 460, extended beam; 470, auxiliary pressure plate; 480, second spring; 500, Nickel-based alloy tube. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementations and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0022] It is to be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention.

[0023] A nickel-based alloy pipe arc welding device provided by some embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0024] Embodiment 1: Combination Figure 1-Figure 12 As shown, the present invention provides a nickel-based alloy tube arc welding device, comprising two nickel-based alloy tubes 500 to be welded and a tube delivery mechanism 100, a weld seam regulating mechanism 200 arranged on the tube delivery mechanism 100, a pipe rotating mechanism 300 arranged on the weld seam regulating mechanism 200, and a welding rod angle adjustment mechanism 400 arranged on the pipe rotating mechanism 300, the two nickel-based alloy tubes 500 are located in the weld seam regulating mechanism 200, the tube delivery mechanism 100 is used to provide a stable calibration docking platform for the two nickel-based alloy tubes 500, the weld seam regulating mechanism 200 is used to provide welding protection for the two nickel-based alloy tubes 500, the pipe rotating mechanism 300 is used to provide a uniform speed drive for the two nickel-based alloy tubes 500, and the welding rod angle adjustment mechanism 400 is used to provide an angle adjustment platform for welding rods, cleaning equipment and testing equipment.

[0025] The tube delivery mechanism 100 includes a material carrier assembly 110 disposed on a workbench, two slide rails 120 disposed on the material carrier assembly 110, a slider 130 disposed in the slide rails 120, a first ring buckle 140 installed on the slider 130, a second ring washer 150 disposed just above the first ring buckle 140, two positioning rods 160 disposed in the first ring buckle 140 and the second ring washer 150, four first springs 170 disposed on the two positioning rods 160, and an anti-slip member 180 installed on the first ring buckle 140; The weld seam regulating mechanism 200 includes two sets of limit assemblies 210, a traction assembly 220 disposed on the two sets of limit assemblies 210, two bases 230 disposed in the two sets of limit assemblies 210, a bottom chuck 240 and a top chuck 250 disposed on the base 230, and a clay plastic gasket 260 disposed in the bottom chuck 240 and the top chuck 250 after the combination; Two guide members 290 are arranged outside the two clay plastic gasket rings 260 and are symmetrically distributed in the horizontal direction. The guide members 290 are used to provide pressure clamping for the nickel-based alloy tube 500 and reduce the friction resistance of the nickel-based alloy tube 500 during delivery and rotation. The pipe rotating mechanism 300 includes a truss 310 disposed on two supports 270, two outer plates 340 are disposed in the truss 310, a linkage shaft 350 is disposed on the top of the two outer plates 340, two first gears 360 and two external drive gears 390 are installed at both ends of the linkage shaft 350, two screw sleeves 320 installed in the truss 310, and a pre-tightening bolt 330 is disposed in the screw sleeve 320 and controls the lifting and lowering of the outer plates 340, and a compression spring is disposed between the outer plates 340 and the screw sleeve 320; The welding rod angle adjustment mechanism 400 includes a cushion 410 disposed in the bottom clamp 240 and the top clamp 250, an inclined rod 420 movably mounted on the cushion 410, a position control outer frame 430 movably mounted on the other end of the inclined rod 420, two bolts 440 disposed in the position control outer frame 430, a sheath 450 movably mounted inside the position control outer frame 430, two horizontally extended beams 460 mounted on the position control outer frame 430, an auxiliary pressure plate 470 movably mounted on the two extended beams 460, and a second spring 480 disposed at the other end of the extended beam 460 and bearing pressure on the auxiliary pressure plate 470; The bottom end of one of the bolts 440 is pressed against the top of the sheath 450 , and the top end of the other bolt 440 is pressed against the bottom of the sheath 450 . The two bolts 440 are used to control the inclination angle of the through hole in the sheath 450 .

[0026] At present, arc welding is mainly performed manually, but affected by the welding proficiency of workers, the quality of workpieces welded by arc welding varies, and the welding efficiency is low. In order to improve the quality and efficiency of arc welding, an automatic welding device is used to weld the workpiece. However, an arc welding device and an arc welding method proposed in Application No. 202311677392.0 still have defects; Since different pipe ports require different welding rod sizes, when the welding rod is shortened, the gradually melted and shortened welding rod will vibrate due to the friction resistance of the pipe rotation and its own toughness. As the pipe port gradually melts, the welding rod with rebound force will squeeze the molten material in the reverse direction, which will lead to the formation of piled material at the pipe port. At the same time, the piled molten material will cause sputtering and contamination to the pipe wall outside the pipe port. In addition, after welding is completed, the weld joint needs to be rinsed with a specific cleaning fluid and inspected after rinsing.

[0027] The device is provided with two symmetrically distributed clay pad rings 260 outside the two ports to be welded of the two nickel-based alloy tubes 500, and two groups of bottom chucks 240 and top chucks 250 are provided outside the two clay pad rings 260. When the two bases 230 become the bearing platforms of the two groups of bottom chucks 240 and top chucks 250 and are pulled back and forth in the horizontal direction by the pulling assembly 220, the two clay pad rings 260 that are equally spaced and extended along the two nickel-based alloy tubes 500 can provide effective welding paths for welding rods of different sizes. The constraints imposed on the welding rods by the diameter width of the two clay pad rings 260 can avoid the problem of overflow of the molten material due to external force while avoiding the shaking of the welding rod, thereby regulating the uniform distribution of the molten material in the gap between the two clay pad rings 260, thereby reducing the contamination of the pipe wall outside the welding port of the nickel-based alloy tube 500 caused by the accumulation of the molten material. The welding rod angle adjustment mechanism 400 arranged in the two groups of bottom chucks 240 and top chucks 250 can serve as a bearing platform for arc welding components and welding rods as a whole, and can provide a support platform for cleaning pipelines and testing equipment after welding is completed. By controlling the inclination angle of the sheath 450 toward the center of the two clay plastic gaskets 260, the reverse extrusion force between the welding rod and the port of the nickel-based alloy tube 500 is reduced, thereby improving the cleaning efficiency of the subsequent cleaning solution along the weld cracks, while reducing the accidental damage to the weld caused by the testing equipment.

[0028] Embodiment 2: Combination Figure 3-Figure 6 As shown, based on Example 1, a Z-shaped support rod is installed at the bottom of the first ring buckle 140; A hanging buckle is installed on the end column at the top of the second ring gasket 150; The anti-slip member 180 is composed of a guide rod and an arc-shaped pad, and an arc groove adapted to the outer end of the nickel-based alloy tube 500 is opened on the inner side of the arc-shaped pad.

[0029] Preferably, the two anti-skid members 180 are used to provide anti-shake and anti-slip protection for the outer ends of the two nickel-based alloy tubes 500. The arc-shaped pads in the anti-skid members 180 are not unique, and the structure of the arc-shaped pads needs to be selected according to the outer ends of the special-shaped pipes to be welded; The first ring buckle 140 and the second ring washer 150 are merely an auxiliary clamping structure for the pipe to be welded, which are used to provide anti-shake protection for the outer end of the pipe and provide double stabilization protection for the two pipes after being butted.

[0030] The material loading assembly 110 includes a bottom plate 111, two guard frames 112 mounted on the top of the bottom plate 111, and a clamping seat 116 mounted on the guard frames 112; Two rectangular baffles are disposed in the middle of the top surface of the bottom plate 111, and bearings 117 are disposed in the two rectangular baffles and the two clamping seats 116, and the number of bearings 117 is four; A screw rod 118 is disposed inside the two bearings 117 , and a deflection gear is disposed at the inner end of the screw rod 118 . The threaded section of the screw rod 118 is adapted to the screw hole inside the slider 130 .

[0031] Preferably, the screw rod 118 is located in the middle of the inner cavity of the slide rail 120, and the inner wall of the slide rail 120 is filled with lubricating oil to reduce the friction resistance between the slider 130 and the slide rail 120, wherein the rectangular baffle in the clamp seat 116 and the bottom plate 111 is used to seal both ends of the slide rail 120 to prevent the lubricating oil from overflowing.

[0032] A chassis 114 is installed on the top of the bottom plate 111 , a motor 115 installed in the chassis 114 , and two support plates 113 installed on the top of the bottom plate 111 .

[0033] Preferably, a gear is installed at the outer end of the transmission shaft in the motor 115, and the gear is engaged with the deflection gear on the two screw rods 118, and the two screw rods 118 are provided with reverse threads, wherein the motor 115 drives the two screw rods 118 to rotate, thereby driving the two sliders 130 to extend at the same speed, which is only one of the delivery methods of the two nickel-based alloy tubes 500.

[0034] Embodiment 3: Combination Figure 8-Figure 10 As shown, based on the embodiment 1, the limiting assembly 210 includes a backing plate 211, a slide groove is provided inside the backing plate 211, and an insertion rod 212 is provided in the slide groove, and a tension spring 213 is provided outside the insertion rod 212; The base 230 is movably installed in the slide groove, and the insertion rod 212 is inserted into the interior of the tension spring 213 to provide stability protection for the lateral sliding of the base 230.

[0035] Preferably, the two pads 211 are respectively installed on the two supports 270 by bolts. At this time, the two pads 211 can provide a stable lateral movement platform for the two bases 230 after being connected. At this time, the two sets of bottom chucks 240 and top chucks 250 installed on the two bases 230 can provide auxiliary pressure protection for the ports of the two nickel-based alloy tubes 500 connected, and provide a central distance adjustment platform for the two clay plastic gaskets 260.

[0036] The traction assembly 220 includes a fixed cover 221 installed on the backing plate 211, a hydraulic component 222 installed in two fixed covers 221, an end head 223 installed on a hydraulic sub-rod in the hydraulic component 222, two pull rods 224 movably connected at both ends of the end head 223, and an adapter 225 movably installed on the other end of the pull rod 224; The adapter 225 is mounted on the backing plate 211 .

[0037] Preferably, the two fixed covers 221 are respectively installed on the bottom of the two pads 211 by bolts. At this time, the hydraulic parts 222 fixed inside the two fixed covers 221 can maintain stability during operation. As the hydraulic sub-rod moves up and down, the end 223 connected to the bottom end of the hydraulic sub-rod can control the two pull rods 224 and the two adapters 225 to expand at equal angles.

[0038] Embodiment 4: Combination Figure 7 and Fig. 9 As shown, based on Example 1, the weld regulating mechanism 200 further includes two brackets 270 and two covers 280, and two guide members 290 are respectively installed in the two sets of brackets 270 and the covers 280; The guide member 290 is composed of a stainless steel gasket, a plurality of oval gaskets, a plurality of support plates and a plurality of inclined rollers, and the inclined rollers are inclined at an angle of 45 degrees to the transverse tube wall of the nickel-based alloy tube 500; The inner walls of the bottom chuck 240 and the top chuck 250 are both provided with T-shaped annular grooves adapted to the gasket 410 , and the bottom chuck 240 and the top chuck 250 are both made of stainless steel.

[0039] Preferably, the two brackets 270 are respectively mounted on the two support plates 113 by means of combination bolts, and the bracket 270 is composed of a semicircular shell and two pads, and the inner wall of the pad is provided with evenly distributed plug holes, and the plug holes at different heights are used to adapt the bolts and adjust the height of the pad 211 for quick locking; The inclined roller is composed of an end rod and a rubber sleeve roller, and the end rod is movably installed in two of the support plates, and the rubber sleeve is located on the inner side of the two support plates, and a plurality of rubber sleeve rollers distributed in a circumference are adapted to bear pressure on the tube wall of the nickel-based alloy tube 500; The elliptical gasket is installed in the groove of the inner wall of the stainless steel gasket ring through bolts.

[0040] Embodiment 5: Combination Fig.11 As shown, in the above embodiment, the truss 310 is in a U-shaped structure as a whole, and vertical grooves are provided in the end plates at both ends of the truss 310, and a notch adapted to be constrained by the linkage shaft 350 is provided on the top of the end plate; A T-shaped shaft is installed at the bottom end of the outer plate 340, and a roller 370 is movably installed on the T-shaped shaft. The outer plate 340 is an L-shaped structure as a whole, and the support plate inside the outer plate 340 penetrates into the vertical groove; The top end of the pre-tightening bolt 330 is movably installed in the vertical hole inside the end plate; A second gear is installed at one end of the rotating roller 370, and a chain 380 is connected to the first gear 360 and the second gear. The roller 370 is made of rubber material, and the outside of the roller 370 is provided with evenly distributed corrugated grooves; The two external driving gears 390 are used to connect to an external driving device and provide a stable driving force for the two rollers 370 to control the uniform rotation of the two nickel-based alloy tubes 500 before and after welding.

[0041] Preferably, the two external drive gears 390 are used to provide a quick-install medium for the external drive device. After one of the external drive gears 390 is driven by the external chain, the linkage shaft 350 can drive the two first gears 360 to rotate at the same speed, and the two second gears and the two rollers 370 linked by the two chains 380 can help rotate the two nickel-based alloy tubes 500 after docking; At this time, the two nickel-based alloy tubes 500 that have been butt-jointed can rotate at a constant speed under the pressure of the two guide members 290 .

[0042] The working principle and use process of the present invention are as follows: Since the welding arc is powered by a welding power source, under a certain voltage, a strong and lasting discharge phenomenon is generated between the electrode (or the end of the welding wire or welding rod) and the workpiece. The essence of the welding arc is gas conduction, that is, the neutral gas in the space where the arc is located is decomposed into positive ions with positive charge and negative electrons with negative charge under a certain voltage, which is called ionization. These two charged particles move toward the two poles respectively, making the local gas conductive to form an arc. The arc converts electrical energy into thermal energy, heats and melts the metal, and forms a welded joint.

[0043] At present, the operation mode of arc welding mainly relies on manual handheld welding equipment to assist welding towards two pre-compressed workpieces. This method has many defects and will cause great damage to the workers' vision and respiratory tract. The use of automatic arc welding equipment to weld workpieces has yet to be improved; Therefore, by running the hydraulic component 222 in advance, as the hydraulic sub-rod in the hydraulic component 222 contracts inwardly, the end 223 installed on the hydraulic sub-rod will push the two pull rods 224 to expand outwardly, and then push the two adapters 225 to extend outwardly. Under the stabilization constraint of the plug rod 212 on the base 230, the base 230 that is pulled in linkage will drive the combined bottom clamp 240 and top clamp 250 to move outward laterally. At this time, the two clay pad rings 260 set inside the two groups of bottom clamps 240 and top clamps 250 will expand to the maximum gap. Then start the motor 115, and the gear on its internal transmission shaft will drive the two screw rods 118 at the same time. At the same time, the two sliders 130 arranged outside the two screw rods 118 will shrink and expand at the same speed along the inside of the two slide rails 120 until the combined first ring buckle 140 and the second ring gasket 150 move to the two ends of the bottom plate 111, then hold the handle on the top of the second ring gasket 150 and lift it upward, and then insert the two nickel-based alloy tubes 500 to be welded into the two groups of first ring buckles 140 and second ring gaskets 150 until the anti-slip member 180 limits the outer end of the nickel-based alloy tube 500. As the motor 115 runs in the reverse direction, according to the above-mentioned operation steps, the two sliders 130 that shrink in the same direction will cooperate with the two groups of first ring buckles 140 and second ring gaskets 150 to shrink until the two adjacent ports of the two nickel-based alloy tubes 500 are docked. At this time, the two nickel-based alloy tubes 500 will respectively penetrate into the two guide members 290, and the two clay plastic gasket rings 260 can be stably set on the tube wall of the nickel-based alloy tube 500; As the hydraulic sub-rod in the hydraulic part 222 extends downward, the two clay plastic gaskets 260 that are brought together can provide a diameter width limit range for welding rods. At this time, the butted ports of the two nickel-based alloy tubes 500 and the gap formed by the two clay plastic gaskets 260 can provide stable welding protection for the welding rods, while preventing the welding rods from gradually shrinking and shaking, thereby causing the welding heads of the two nickel-based alloy tubes 500 to be skewed. At the same time, the two symmetrically distributed clay plastic gaskets 260 can also reduce the contamination of the inner end of the nickel-based alloy tube 500 by the welding rod and the molten metal.

[0044] Although the 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 claims and their equivalents.

Claims

1. A nickel-based alloy pipe arc welding device, comprising two nickel-based alloy pipes (500) to be welded, characterized in that: It also includes a pipe delivery mechanism (100), a weld seam control mechanism (200) arranged on the pipe delivery mechanism (100), a pipe fitting rotation mechanism (300) arranged on the weld seam control mechanism (200), and a welding rod angle adjustment mechanism (400) arranged on the pipe fitting rotation mechanism (300); the two nickel-based alloy pipes (500) are located in the weld seam control mechanism (200); The tube delivery mechanism (100) is used to provide a stable calibration docking platform for two nickel-based alloy tubes (500); The weld seam regulating mechanism (200) comprises two groups of limit assemblies (210), a traction assembly (220) arranged on the two groups of limit assemblies (210), two bases (230) arranged in the two groups of limit assemblies (210), a bottom chuck (240) and a top chuck (250) arranged on the bases (230), and a clay plastic gasket (260) arranged in the bottom chuck (240) and the top chuck (250) after the combination; Two guide members (290) are arranged outside the two clay plastic gasket rings (260) and are symmetrically distributed in the horizontal direction, and the guide members (290) are used to provide pressure clamping for the nickel-based alloy tube (500) and reduce the friction resistance of the nickel-based alloy tube (500) during rotation. The pipe rotating mechanism (300) is used to provide a uniform speed drive for two nickel-based alloy pipes (500); The welding rod angle adjustment mechanism (400) is used to provide an angle adjustment platform for welding rods, cleaning equipment and testing equipment.

2. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The welding rod angle adjustment mechanism (400) comprises a cushion (410) disposed inside a bottom chuck (240) and a top chuck (250), an inclined rod (420) movably mounted on the cushion (410), a position control outer frame (430) movably mounted on the other end of the inclined rod (420), two bolts (440) disposed inside the position control outer frame (430), a sheath (450) movably mounted inside the position control outer frame (430), two elongated beams (460) mounted on the position control outer frame (430) and arranged horizontally, an auxiliary pressure plate (470) movably mounted on the two elongated beams (460), and a second spring (480) disposed at the other end of the elongated beam (460) and bearing pressure on the auxiliary pressure plate (470); The bottom end of one of the bolts (440) is pressed against the top of the sheath (450), and the top end of the other bolt (440) is pressed against the bottom of the sheath (450). The two bolts (440) are used to control the inclination angle of the through hole in the sheath (450).

3. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The limiting assembly (210) comprises a backing plate (211), a sliding groove is provided inside the backing plate (211), an insertion rod (212) is provided inside the sliding groove, and a tension spring (213) is provided outside the insertion rod (212); The base (230) is movably mounted in the slide groove, and the insertion rod (212) is inserted into the interior of the tension spring (213), so as to provide stability enhancement protection for the lateral sliding of the base (230); The traction assembly (220) comprises a fixed cover (221) mounted on the backing plate (211), a hydraulic component (222) mounted in the two fixed covers (221), an end head (223) mounted on a hydraulic sub-rod in the hydraulic component (222), two pull rods (224) movably connected at both ends of the end head (223), and an adapter (225) movably mounted on the other end of the pull rod (224); The adapter (225) is mounted on the backing plate (211).

4. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The tube delivery mechanism (100) comprises a material carrier assembly (110) arranged on a workbench, two slide rails (120) arranged on the material carrier assembly (110), a slider (130) arranged in the slide rails (120), a first ring buckle (140) mounted on the slider (130), a second ring washer (150) arranged directly above the first ring buckle (140), two positioning rods (160) arranged in the first ring buckle (140) and the second ring washer (150), four first springs (170) arranged on the two positioning rods (160), and an anti-slip member (180) mounted on the first ring buckle (140).

5. The nickel-based alloy pipe arc welding device according to claim 4, characterized in that: The material loading assembly (110) comprises a bottom plate (111), two protective frames (112) mounted on the top of the bottom plate (111), and a clamping seat (116) mounted on the protective frames (112); Two rectangular baffles are provided in the middle of the top surface of the bottom plate (111), and bearings (117) are provided in the two rectangular baffles and the two clamping seats (116), and the number of the bearings (117) is four; A screw rod (118) is arranged inside the two bearings (117), and a deflection gear is arranged at the inner end of the screw rod (118), and a threaded section of the screw rod (118) is adapted to fit into a screw hole inside the slider (130); A chassis (114) is installed on the top of the bottom plate (111), a motor (115) is installed in the chassis (114), and two support plates (113) are installed on the top of the bottom plate (111).

6. The nickel-based alloy pipe arc welding device according to claim 4, characterized in that: A Z-shaped support rod is installed at the bottom of the first ring buckle (140); A hanging buckle is installed on the end column at the top of the second ring gasket (150); The anti-slip member (180) is composed of a guide rod and an arc-shaped cushion block, and an arc groove adapted to fit the outer end port of the nickel-based alloy tube (500) is provided on the inner side of the arc-shaped cushion block.

7. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The inner walls of the bottom chuck (240) and the top chuck (250) are both provided with a T-shaped annular groove adapted to fit the cushion (410), and the bottom chuck (240) and the top chuck (250) are both made of stainless steel.

8. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The weld seam regulating mechanism (200) further comprises two support frames (270) and two sealing covers (280), and the two guide members (290) are respectively installed in the two sets of support frames (270) and the sealing covers (280); The guide member (290) is composed of a stainless steel gasket, a plurality of elliptical gaskets, a plurality of support plates and a plurality of inclined rollers, and the inclined rollers have an inclination angle of forty-five degrees with respect to the transverse tube wall of the nickel-based alloy tube (500).

9. The nickel-based alloy pipe arc welding device according to claim 1, characterized in that: The pipe rotating mechanism (300) comprises a truss (310) arranged on two supports (270), two outer plates (340) are arranged in the truss (310), a linkage shaft (350) is arranged on the top of the two outer plates (340), two first gears (360) and two external drive gears (390) are installed at both ends of the linkage shaft (350), two screw sleeves (320) are installed in the truss (310), and a pre-tightening bolt (330) is arranged in the screw sleeve (320) and controls the lifting and lowering of the outer plates (340), and a compression spring is arranged between the outer plates (340) and the screw sleeve (320); A T-shaped shaft is installed at the bottom end of the outer plate (340), and a roller (370) is movably installed on the T-shaped shaft; A second gear is installed at one end of the rotating roller (370), and a chain (380) is transmission-connected between the first gear (360) and the second gear.

10. The nickel-based alloy pipe arc welding device according to claim 9, characterized in that: The rotating roller (370) is made of a rubber material, and the exterior of the rotating roller (370) is provided with evenly distributed corrugated grooves; The two external drive gears (390) are used to connect to an external drive device and provide a stable driving force for the two rollers (370) to control the uniform rotation of the two nickel-based alloy tubes (500) before and after welding.

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