Welding equipment for stainless steel pipe machining

Abstract

The invention discloses welding equipment for stainless steel pipe machining, and relates to the technical field of stainless steel pipe machining, the welding equipment comprises a workbench, a mounting frame, a first supporting frame, a welding gun, an air pipe, a stainless steel pipe body, a laser sensor, a clamping mechanism, a force adjusting mechanism and a driving assembly, and supporting bases are fixedly mounted at the four corners of the bottom of the workbench; the number of the mounting frames is two, and the two mounting frames are fixedly mounted in the middle of one end of the workbench. The first supporting frame is fixedly installed in the middle of one end of the top of the workbench. The welding gun is installed on the top of the first supporting frame in a sliding mode through a sliding assembly. One end of the air pipe is fixedly mounted at one end of the welding gun; the device has the beneficial effects that the butt-jointed stainless steel pipe bodies are driven to synchronously and stably rotate, the welding position of a welding gun is always the top position of a seam, manual angle adjustment is not needed, the welding quality is improved, and operation is convenient and fast.

Description

Technical Field

[0001] This application relates to the field of stainless steel pipe processing technology, and in particular to a welding device for stainless steel pipe processing. Background Technology

[0002] Stainless steel pipes, with their excellent corrosion resistance, mechanical strength, and formability, are widely used in chemical pipeline transportation, food machinery manufacturing, and building water supply and drainage. The quality of their butt welding directly determines the sealing performance, pressure resistance, and service life of the pipeline system. In butt welding of stainless steel pipes, the choice of welding position at the joint has a significant impact on the welding effect: the top joint welding is naturally stable due to the gravity of the molten pool, making it less prone to problems such as weld metal sagging and insufficient penetration. The weld after welding is smooth with a low rate of slag inclusions and porosity defects. However, the bottom joint welding is affected by gravity, and the molten pool metal is prone to sagging due to its own weight, resulting in weld depressions, incomplete fusion, or weld bead accumulation. Especially for thin-walled stainless steel pipes, bottom welding can also easily cause local deformation of the pipe due to the concentrated temperature of the molten pool.

[0003] In existing stainless steel pipe welding equipment, two butted stainless steel pipes are typically fixed by a clamping mechanism. The circumferential angle of the pipes is then manually adjusted, and welding is performed through the top position of the weld joint using a welding torch. After completing one weld, the angle is manually adjusted again to weld other areas. However, this method relies on frequent manual adjustments, which is not only inefficient but also prone to causing deviations between the joint and the top position, resulting in inconsistent weld quality across different areas. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by proposing a welding device for stainless steel pipe processing. Its advantages include: achieving synchronous and stable rotation of the stainless steel pipe body after welding, ensuring the welding torch is always positioned at the top of the joint, eliminating the need for manual angle adjustment, improving welding quality, and facilitating operation.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a welding equipment for processing stainless steel pipes, comprising: a workbench, with support bases fixedly installed at the four corners of the bottom of the workbench; further comprising: a mounting frame, a first support frame, a welding torch, a gas pipe, a stainless steel pipe body, a laser sensor, a clamping mechanism, a force adjustment mechanism, and a drive assembly; there are two mounting frames, both of which are fixedly installed at the middle position of one end of the workbench; the first support frame is fixedly installed at the middle position of one end of the top of the workbench; the welding torch is slidably installed on the top of the first support frame via a sliding assembly; one end of the gas pipe is fixedly installed on one end of the welding torch, and the other end of the gas pipe is fixedly installed between the two mounting frames. The worktable comprises two stainless steel tube bodies, each horizontally positioned directly above the top of the worktable on either side. A laser sensor is located on one side of the welding torch, with its end near the stainless steel tube body angled downwards. Two clamping mechanisms are located on either side of the top of the worktable to clamp the two stainless steel tube bodies. Two force-adjusting mechanisms are also located on either side of the top of the worktable to adjust the clamping force applied to the stainless steel tube bodies by the clamping mechanisms. A drive assembly is located at the bottom of the worktable to drive the two stainless steel tube bodies to rotate synchronously.

[0006] Preferably, the clamping mechanism includes: a support plate, a pressure plate, an electric telescopic rod, a buffer assembly, two mounting rings, and an opening and closing assembly. The support plate is disposed on the outer wall of the bottom circumference of the stainless steel pipe body, and the pressure plate is disposed on the outer wall of the top circumference of the stainless steel pipe body. The top of the support plate and the bottom of the pressure plate are both disposed in close contact with the outer wall of the circumference of the stainless steel pipe body. The electric telescopic rod is vertically disposed directly above the center of the top of the pressure plate. The buffer assembly is installed between the bottom of the electric telescopic rod and the top of the pressure plate. The two mounting rings are each sleeved on one of the stainless steel pipe bodies, and the two mounting rings are respectively located on both sides of the electric telescopic rod. The opening and closing assembly is installed between the two mounting rings on the side that are close to each other. The force adjustment mechanism... The device includes: two mounting rings, two bearings, two rotating rollers, two sets of buffer components, and two limiting plates. Each of the two mounting rings is fitted onto one of the stainless steel tube bodies. The two mounting rings are located on opposite sides of the electric telescopic rod. The outer circumferences of the two mounting rings are rotatably mounted on opposite sides of their inner circumferences via the two bearings. The two rotating rollers contact the outer top walls of the two mounting rings on opposite sides. The two sets of buffer components are installed between the two rotating rollers and the top sides of the pressure plate. The two limiting plates are fixedly installed on the outer bottom walls of the two mounting rings on opposite sides. A common support frame is fixedly installed between the outer bottom walls of the two mounting rings.

[0007] Preferably, the opening and closing assembly includes: a first mounting plate, a second mounting plate, and a connecting plate. Both the first mounting plate and the second mounting plate are arc-shaped. The first mounting plate is fixedly installed between the bottom sides of the two first mounting rings that are close to each other. One end of the second mounting plate is hinged to the first mounting plate. The top of the electric telescopic rod passes through the top of the second mounting plate and is fixedly installed thereto. The connecting plate is vertically fixedly installed between the bottom of the support plate and the top of the first mounting plate.

[0008] Preferably, a baffle is fixedly installed at the other end of the top of the mounting plate 1. The end of the baffle 1 near the stainless steel tube body is inclined downwards. A baffle 2 is hinged to the other end of the top of the mounting plate 1 via a torsion spring hinge. The baffle 2 is located directly below the baffle 1. The end of the baffle 2 near the stainless steel tube body is inclined upwards. The top of the baffle 2 is fitted against one end of the baffle 1. An electric slide rail 1 is fixedly installed at the other end of the bottom of the mounting plate 2. An electric slider 1 is slidably installed on the electric slide rail 1. A hook is hinged to one side of the electric slider 1 via a torsion spring hinge.

[0009] Preferably, the drive assembly includes: a rotary motor, two gears (first type), a rotating rod, four gears (second type), and a chain. The rotary motor is fixedly installed at the bottom of the worktable. The two gears (first type) are respectively fixedly installed on the outer circumference of two mounting rings located on both sides of the top of the worktable. The rotating rod is horizontally rotatably installed between two support bases. The two gears (second type) are respectively sleeved on both sides of the rotating rod. The two gears (second type) are respectively meshed with the two gears (first type). The other two gears (second type) are respectively fixedly installed on the rotating rod and connected to the output shaft of the rotary motor. The chain is respectively meshed with the other two gears (second type).

[0010] Preferably, the first buffer assembly includes: a sleeve, a rod, and a buffer spring. The sleeve is vertically fixed to the bottom of the electric telescopic rod. The rod is vertically arranged, with its bottom fixed to the center of the top of the pressure plate. The top of the rod is inserted into the sleeve. The buffer spring is fixedly installed between the inner wall of the top of the sleeve and the top of the rod. The second buffer assembly includes: a second sleeve, a second rod, and a second buffer spring. Two sleeves are vertically fixed to the top of the two mounting rings on opposite sides. The rod is vertically arranged, with its bottom inserted into the sleeve. The top of the rod is rotatably mounted to the rotating roller. Two buffer springs are fixedly installed between the bottoms of the two rods and the top sides of the pressure plate.

[0011] Preferably, the sliding assembly includes: a second electric slide rail, a second electric slider, and a connecting block. The second electric slide rail is horizontally fixedly installed on the top of the first support frame. The second electric slider is slidably installed on the second electric slide rail. The connecting block is fixedly installed on the top of the second electric slider. The top two sides of the connecting block are respectively fixedly installed to the bottom of the welding torch and the bottom of the laser sensor.

[0012] Preferably, the limiting plate is arranged in a left-right symmetrical double-segment parabola, the limiting plate covers the central angle of the circumference of the second mounting ring, and the limiting plate is located below the horizontal axis of the second mounting ring.

[0013] Compared with the prior art, the beneficial effects of this application are as follows: (1) This invention proposes a welding device for processing stainless steel pipes. It comprises a worktable, a support base, a mounting frame, a first support frame, a welding torch, a gas pipe, a stainless steel pipe body, a laser sensor, a drive assembly, a support plate, a clamping plate, an electric telescopic rod, a first buffer assembly, two first mounting rings, an opening and closing assembly, two second mounting rings, two bearings, two rotating rollers, two sets of second buffer assemblies, and two limiting plates. First, a single stainless steel pipe body is aligned with the support plate and clamping plate, inserted, and placed on the support plate. The electric telescopic rod, via the first buffer assembly, drives the clamping plate to press the stainless steel pipe body. Then, another stainless steel pipe body is inserted into another clamping mechanism and connected to the former. The clamping operation is repeated. Subsequently, the drive assembly drives the first mounting ring to rotate, achieving stable rotation through the bearings and the second mounting ring. Simultaneously, the stainless steel pipe body, clamping plate, and opening and closing assembly rotate synchronously. During rotation, the rotating rollers move in... The pressure of the two sets of buffer components is adjusted in real time according to the position of the rotating roller, ensuring that the clamping force of the clamping plate on the steel pipe is stable and preventing the stainless steel pipe body from shaking and shifting during rotation. This achieves synchronous and stable rotation of the stainless steel pipe body after docking, so that the welding gun is always at the top of the joint, eliminating the need for manual angle adjustment, improving welding quality and making operation convenient.

[0014] (2) The present invention proposes a welding device for processing stainless steel pipes. It is equipped with a mounting plate 1, a mounting plate 2, a connecting plate, a baffle 1, a baffle 2, an electric slide rail 1, an electric slider 1, and a hook. In the initial state, the baffle 1 and the baffle 2 are in contact. The electric slider 1 is in the initial position of the electric slide rail 1, and the hook is naturally placed. The electric slider 1 drives the hook to move along an arc trajectory. After the hook contacts the inclined end of the baffle 1, it moves in the direction and rotates around the torsion spring hinge. After completely passing through the baffle 1, it is blocked by its end, thereby locking the mounting plate 1 and the mounting plate 2. The subsequent drive component drives the two to rotate synchronously and stably. When replacing the stainless steel pipe body, the electric slider 1 continues to slide down. The hook squeezes the baffle 2 to make it rotate and form a gap to pass through. Then the electric slider 1 resets. The hook drives the baffle 2 to reset to be in contact with the baffle 1. After the hook completely disengages from the baffle 2, the device is unlocked. The mounting plate 2 can be opened to replace the steel pipe. Automatic locking and unlocking are achieved without manual operation, making the operation convenient. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view highlighting gear two in this invention.

[0017] Figure 3 This is a perspective view highlighting the rotating rod in this invention.

[0018] Figure 4 This is a perspective view highlighting the connecting plate in this invention. Figure 5 For the present invention Figure 1 The 3D image highlighting point A is shown in the image.

[0019] Figure 6 For the present invention Figure 1 The 3D diagram highlighting point B is shown in the image.

[0020] Figure 7 For the present invention Figure 2 The 3D image highlighting point C is shown in the image.

[0021] Figure 8 For the present invention Figure 3 The 3D image highlighting point D is shown in the image.

[0022] Figure 9 For the present invention Figure 4 The 3D view highlighting point E.

[0023] Figure 10 This is a cross-sectional view highlighting the buffer spring in this invention.

[0024] In the diagram: 1. Workbench; 9. Support base; 10. Mounting frame; 11. Support frame one; 12. Welding torch; 13. Gas pipe; 14. Stainless steel pipe body; 15. Laser sensor; 201. Support plate; 202. Pressure plate; 203. Electric telescopic rod; 204. Mounting ring one; 205. Mounting ring two; 206. Bearing; 207. Rotating roller; 208. Limiting plate; 209. Support base frame; 301. Mounting plate one; 302. Mounting plate two; 303. Connecting plate ; 401. Rotating motor; 402. Gear 1; 403. Rotating rod; 404. Gear 2; 405. Chain; 501. Baffle 1; 502. Baffle 2; 503. Electric slide rail 1; 504. Electric slider 1; 505. Hook; 601. Sleeve 1; 602. Insert rod 1; 603. Buffer spring 1; 604. Sleeve 2; 605. Insert rod 2; 606. Buffer spring 2; 701. Electric slide rail 2; 702. Electric slider 2; 703. Connecting block. Detailed Implementation

[0025] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0027] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0028] One preferred embodiment of this application, such as Figures 1 to 10 As shown, a welding device for processing stainless steel pipes includes: a workbench 1, with support bases 9 fixedly installed at the four corners of the bottom of the workbench 1; and further includes: mounting brackets 10, support bracket 11, welding torch 12, gas pipe 13, stainless steel pipe body 14, laser sensor 15, clamping mechanism, force adjustment mechanism, and drive assembly; there are two mounting brackets 10, both of which are fixedly installed at the middle position of one end of the workbench 1; support bracket 11 is fixedly installed at the middle position of one end of the top of the workbench 1; the welding torch 12 is slidably installed on the top of the support bracket 11 via a sliding assembly; one end of the gas pipe 13 is fixedly installed on one end of the welding torch 12, and the other end of the gas pipe 13 is fixedly installed on the two mounting brackets 10. Between the frame 10; there are two stainless steel tube bodies 14, which are horizontally arranged directly above the top of the workbench 1 on both sides; the laser sensor 15 is located on one side of the welding torch 12, with the end of the laser sensor 15 near the stainless steel tube body 14 tilted downwards; there are two sets of clamping mechanisms, which are respectively arranged on the top of the workbench 1 on both sides, for clamping the two stainless steel tube bodies 14 respectively; there are two sets of force adjustment mechanisms, which are respectively arranged on the top of the workbench 1 on both sides, for adjusting the clamping force applied by the clamping mechanisms to the stainless steel tube bodies 14; the drive assembly is located at the bottom of the workbench 1 for driving the two stainless steel tube bodies 14 to rotate synchronously.

[0029] First, place the two stainless steel tube bodies 14 directly above the top of the workbench 1 on both sides. Then, adjust the positions of the two stainless steel tube bodies 14 to ensure precise and stable alignment at their joints. Next, activate two sets of clamping mechanisms to clamp and fix the two stainless steel tube bodies 14. Then, adjust the positions of the welding torch 12 and the laser sensor 15 using the sliding assembly. Use the laser sensor 15 to scan the surface of the stainless steel tube bodies 14. When the laser sensor 15 scans the joint of the two stainless steel tube bodies 14, even a slight deviation at the joint will change the detection data. The operator can use this data to determine the specific position of the welding torch 12. Finally, precisely position the welding torch 12 directly above the joint of the two stainless steel tube bodies 14 after alignment. Then, activate the drive assembly, which drives the two stainless steel tube bodies 14 and their corresponding clamping mechanisms to rotate synchronously. During rotation, the clamping force of the clamping mechanisms is adjusted in real time using two sets of force adjustment mechanisms. To ensure the clamping force of the clamping mechanism on the stainless steel pipe body 14 remains stable and to prevent the stainless steel pipe body 14 from shifting during rotation, the welding torch 12 is activated to weld the top position of the joint between the two stainless steel pipe bodies 14. Welding is performed synchronously as the stainless steel pipe body 14 rotates. When welding at this position, the molten slag can naturally and stably act on the joint, reducing the likelihood of weld sag or insufficient penetration. The weld seam is smooth after welding, and compared to welding at the bottom or other positions of the stainless steel pipe body 14, top welding is less likely to burn through the stainless steel pipe body 14, resulting in higher weld quality. After welding is completed, the welding torch 12 and drive assembly are turned off first, and then the two clamping mechanisms are operated to release the stainless steel pipe body 14, thus completing the entire operation process. This achieves synchronous and stable rotation of the joined stainless steel pipe bodies 14, ensuring that the welding torch 12 is always positioned at the top of the joint, eliminating the need for manual angle adjustment, improving weld quality, and simplifying operation.

[0030] Further reference Figures 1-4 and Figures 6-10The clamping mechanism includes: a support plate 201, a pressure plate 202, an electric telescopic rod 203, a buffer assembly, two mounting rings 204, and an opening and closing assembly. The support plate 201 is disposed on the outer wall of the bottom circumference of the stainless steel pipe body 14, and the pressure plate 202 is disposed on the outer wall of the top circumference of the stainless steel pipe body 14. The top of the support plate 201 and the bottom of the pressure plate 202 are both fitted against the outer wall of the circumference of the stainless steel pipe body 14. The electric telescopic rod 203 is vertically disposed directly above the center of the top of the pressure plate 202. The buffer assembly is installed between the bottom of the electric telescopic rod 203 and the top of the pressure plate 202. The two mounting rings 204 are each fitted onto one of the stainless steel pipe bodies 14, and the two mounting rings 204 are respectively located on both sides of the electric telescopic rod 203. The opening and closing assembly is installed between the two mounting rings 204 on the side that are close to each other. The force adjustment mechanism includes: two... The system includes mounting ring 205, two bearings 206, two rotating rollers 207, two sets of buffer components 202, and two limiting plates 208. The two mounting rings 205 are fitted onto one of the stainless steel tube bodies 14. The two mounting rings 205 are located on either side of the electric telescopic rod 203. The outer circumferences of the two mounting rings 204, which are far apart, are rotatably mounted to the inner circumferences of the two mounting rings 205, which are close together, via the two bearings 206. The two rotating rollers 207 are in contact with the outer circumferences of the top of the two mounting rings 205, which are far apart. The two sets of buffer components 202 are installed between the top two sides of the two rotating rollers 207 and the pressure plate 202. The two limiting plates 208 are fixedly installed on the outer circumferences of the bottom of the two mounting rings 205, which are far apart. A common support frame 209 is fixedly installed between the outer circumferences of the bottom of the two mounting rings 205.

[0031] First, align the stainless steel pipe body 14 with the space between the support plate 201 and the clamping plate 202, and insert the stainless steel pipe body 14 horizontally, placing it on top of the support plate 201. The electric telescopic rod 203 extends and retracts downwards, driving the clamping plate 202 downwards through the buffer assembly until the clamping plate 202 clamps the stainless steel pipe body 14, thus clamping it. Then, insert another stainless steel pipe body 14 horizontally into another clamping mechanism, aligning it with one side of the first stainless steel pipe body 14, and repeat the clamping operation for the other stainless steel pipe body 14. Subsequently, activate the drive assembly, which drives the two mounting rings 204 of the clamping mechanism to rotate. When the mounting rings 204 rotate, the bearing 206 ensures the relatively stable rotation of the mounting rings 204 and 205. The bearing 206 ensures smooth rotation and prevents deviation. Simultaneously, the mounting rings 204 drive the stainless steel pipe body 14, the clamping plate 202, and the opening and closing assembly to rotate synchronously. During operation, the two rotating rollers 207 initially contact the opposite sides of the inner walls of the top of the two mounting rings 205. As the mounting ring 204 drives the stainless steel pipe body 14 to rotate, when the rotating rollers 207 rotate 90 degrees, they begin to contact the limiting plate 208. At this time, the electric telescopic rod 203 is horizontal. When rotating 270 degrees, the rotating rollers 207 disengage from the limiting plate 208, and the electric telescopic rod 203 is also horizontal. Between 90 degrees and 270 degrees of rotation, the rotating rollers 207 remain in contact with the limiting plate 208. The two sets of buffer components adjust the pressure on the clamping plate 202 in real time according to the position change of the rotating rollers 207, ensuring that the clamping force of the clamping plate 202 on the stainless steel pipe body 14 remains stable and neither too large nor too small. This achieves synchronous and stable rotation of the stainless steel pipe body 14 after docking, ensuring that the welding position of the welding gun 12 is always at the top of the joint, eliminating the need for manual angle adjustment, improving welding quality, and making operation convenient.

[0032] Further reference Figures 2-4 and Figures 6-9 The opening and closing assembly includes: mounting plate 1 301, mounting plate 2 302, and connecting plate 303. Mounting plate 1 301 and mounting plate 2 302 are both arc-shaped. Mounting plate 1 301 is fixedly installed between the bottom sides of two mounting rings 1 204 that are close to each other. One end of mounting plate 2 302 is hinged to the other end of mounting plate 2 302. The top of the electric telescopic rod 203 passes through the top of mounting plate 2 302 and is fixedly installed thereto. The connecting plate 303 is vertically fixed between the bottom of the support plate 201 and the top of mounting plate 1 301.

[0033] Manually drive the mounting plate 202 to rotate upward around the hinge point. When the mounting plate 202 rotates, it will simultaneously drive the electric telescopic rod 203 fixedly connected to it to move upward, thereby pulling the pressure plate 202 upward. At this time, the gap between the support plate 201 and the pressure plate 202 increases significantly, making it easier to insert the stainless steel pipe body 14.

[0034] Further reference Figure 9 A baffle 501 is fixedly installed at the other end of the top of mounting plate 301. The end of baffle 501 near the stainless steel tube body 14 is inclined downward. A baffle 502 is hinged to the other end of the top of mounting plate 301 via a torsion spring hinge. The baffle 502 is located directly below baffle 501. The end of baffle 502 near the stainless steel tube body 14 is inclined upward. The top of baffle 502 is attached to one end of baffle 501. An electric slide rail 503 is fixedly installed at the other end of the bottom of mounting plate 302. An electric slider 504 is slidably installed on the electric slide rail 503. A hook 505 is hinged to one side of the electric slider 504 via a torsion spring hinge.

[0035] In the initial state, one end of baffle 1 501 is in contact with the top of baffle 2 502, and the electric slider 1 504 on electric slide rail 1 503 is in the initial position. The hook 505, which is hinged to one side by a torsion spring hinge, is naturally placed. At this time, electric slide rail 1 503 is activated, which drives electric slider 1 504 to slide along an arc trajectory. Hook 505 moves synchronously. When hook 505 contacts the inclined end of baffle 1 501, it moves along its angle and continues to drive electric slider 1 504. Because the top of hook 505 is in contact with baffle 1 501, it rotates around the torsion spring hinge until it completely passes through baffle 1 501. At this time, the end of baffle 1 501 blocks hook 505. Even if electric slider 1 504 moves in the opposite direction, it will be stuck, thus fixing mounting plate 1 301 and mounting plate 2 302 into one unit. When the subsequent drive component drives the structure to rotate, the two are stable and synchronous without shaking. When it is necessary to replace the stainless steel tube body 14, it is only necessary to activate electric slide rail 1 503 to control electric slider 1. As 504 continues to slide downwards, hook 505 first contacts the bottom of baffle 2 502. As it continues to slide, it presses baffle 2 502, causing it to rotate away from baffle 1 501 around the torsion spring hinge and form a gap, until hook 505 completely passes through baffle 2 502. Then, electric slide rail 1 503 and electric slider 1 504 are activated to rotate and reset. Hook 505 moves in the opposite direction. According to the torsion spring hinge of hook 505, baffle 2 502 is synchronously driven to reset and rotate. Hook 505 is always in contact with the bottom of baffle 2 502 until the top of baffle 2 502 gradually rests on one end of baffle 1 501 and fits. After continuing to reset and slide, hook 505 completely disengages from baffle 2 502. At this time, baffle 1 501 no longer obstructs hook 505, and the device automatically unlocks. Installation plate 2 302 can be operated to open and replace the stainless steel tube body 14. The whole process only requires the activation of electric slide rail 1 503 and electric slider 1 504. Automatic locking and unlocking can be completed without manual operation.

[0036] Further reference Figures 1-3 and Figure 8 The drive assembly includes: a rotary motor 401, two gears 402, a rotating rod 403, four gears 404, and a chain 405. The rotary motor 401 is fixedly installed at the bottom of the workbench 1. The two gears 402 are respectively fixedly installed on the outer circumference of two mounting rings 204 located on both sides of the top of the workbench 1. The rotating rod 403 is horizontally rotatably installed between two support bases 209. The two gears 404 are respectively sleeved on both sides of the rotating rod 403. The two gears 404 are respectively meshed with the two gears 402. The other two gears 404 are respectively fixedly installed on the rotating rod 403 and connected to the output shaft of the rotary motor 401. The chain 405 is respectively meshed with the other two gears 404.

[0037] When the rotating motor 401 is started, the output shaft of the rotating motor 401 drives the gear 404 fixed on it to rotate synchronously. The chain 405 is driven by the rotation of the gear 404 on the output shaft of the rotating motor 401, which in turn drives another gear 404 meshed with the chain 405 to rotate. Therefore, the rotating rod 403 and two of the gears 404 rotate synchronously. When the gear 404 rotates, it drives the meshing gear 402 to rotate. The mounting ring 204 rotates synchronously with the gear 402, which in turn drives the mounting ring 204, the clamping mechanism and the clamped stainless steel tube body 14 to rotate synchronously, thus realizing the synchronous and stable rotation of the two stainless steel tube bodies 14.

[0038] Further reference Figure 6 , Figure 7 and Figure 10 The first buffer assembly includes: a sleeve 601, a rod 602, and a buffer spring 603. The sleeve 601 is vertically fixed to the bottom of the electric telescopic rod 203. The rod 602 is vertically positioned, with its bottom fixed to the center of the top of the pressure plate 202. The top of the rod 602 is inserted into the sleeve 601. The buffer spring 603 is fixedly installed between the inner top wall of the sleeve 601 and the top of the rod 602. The second buffer assembly... It includes: sleeve 2 604, insert rod 2 605 and buffer spring 2 606. The two sleeves 2 604 are vertically fixed on the top of the two mounting rings 1 204 on opposite sides. The insert rod 2 605 is vertically set, with its bottom inserted into the sleeve 2 604. The top of the insert rod 2 605 is rotatably mounted with the rotating roller 207. The two buffer springs 2 606 are fixedly installed between the bottom of the two insert rods 2 605 and the top two sides of the pressure plate 202.

[0039] Start the electric telescopic rod 203, which extends and retracts downwards, causing the sleeve 601 to move downwards synchronously. The insertion rod 602 moves downwards with the sleeve 602, causing the clamping plate 202 to adhere to the top outer wall of the stainless steel pipe body 14. The electric telescopic rod 203 continues to extend, clamping the stainless steel pipe body 14 through the buffer spring 603 to prevent deformation due to excessive clamping force. Start the drive assembly to drive the mounting ring 204 to rotate, and the mounting ring 204 moves synchronously away from each other to be vertically fixed on one side. The two sleeves 604 rotate, and the insert rod 605 inserted inside the sleeves 604 rotates with them. The rotating roller 207 then contacts the inner wall of the top circumference of the mounting ring 205. When the stainless steel tube body 14 rotates to different angles with the mounting ring 204, and the rotating roller 207 contacts the limiting plate 208, it pushes the insert rod 605 to slide up and down inside the sleeves 604. At this time, the buffer spring 606 fixed between the bottom of the insert rod 605 and the top two sides of the pressure plate 202... The spring force is adjusted in real time as the insertion rod 605 slides: If the rotating roller 207 is pressed, causing the insertion rod 605 to move downward, the buffer spring 606 is compressed, applying downward supplementary pressure to the clamping plate 202 to prevent the stainless steel pipe body 14 from loosening due to the decrease in clamping force of the clamping plate 202. If the pressure of the rotating roller 207 decreases, causing the insertion rod 605 to move upward, the buffer spring 606 stretches and resets, reducing the force on the clamping plate 202 and avoiding excessive clamping force that hinders rotation. The entire rotation process... In the process, the second buffer spring 606, through the cooperation of the second insert rod 605 and the second sleeve 604, continuously and dynamically adjusts the clamping force of the pressure plate 202 on the stainless steel pipe body 14. Combined with the initial buffering effect of the first buffer spring 601, it ensures that the stainless steel pipe body 14 always maintains a stable clamping state without deformation or displacement. After welding is completed, the electric telescopic rod 203 retracts upward, the first sleeve 601 moves upward, the first buffer spring 603 returns to its natural length, and pulls the first insert rod 602 and the pressure plate 202 upward.

[0040] Further reference Figure 5 The sliding assembly includes: electric slide rail 2 701, electric slider 2 702 and connecting block 703. Electric slide rail 2 701 is horizontally fixedly installed on the top of support frame 11. Electric slider 2 702 is slidably installed on electric slide rail 2 701. Connecting block 703 is fixedly installed on the top of electric slider 2 702. The top two sides of connecting block 703 are fixedly installed to the bottom of welding torch 12 and the bottom of laser sensor 15, respectively.

[0041] Start the electric slide rail 2 701. The electric slide rail 2 701 drives the electric slider 2 702 on it to slide stably in the horizontal direction of the electric slide rail 2 701. When the electric slider 2 702 slides, it will drive the welding torch 12 and the laser sensor 15 to slide synchronously and stably.

[0042] Further reference Figure 4 , Figure 6 and Figure 8 The limiting plate 208 is arranged in a two-segment parabola with left and right symmetry. The limiting plate 208 covers a 180-degree central angle along the circumference of the second mounting ring 205. The limiting plate 208 is located below the horizontal axis of the second mounting ring 205.

[0043] When the drive assembly starts, causing the mounting ring 204 and the stainless steel tube body 14 to rotate synchronously, the rotating rollers 207 on both sides of the mounting ring 204 rotate with the mounting ring 204 around the axis of the stainless steel tube body 14. When the rotating rollers 207 rotate to the area below the horizontal axis of the mounting ring 205, that is, the 180° area covered by the limiting plate 208... Within a circumferential range, the rotating roller 207 begins to contact the double-segment parabolic arc surface of the limiting plate 208. Due to the smooth transition characteristic of the parabolic structure, the rotating roller 207 can slide smoothly along the arc surface, avoiding any jamming. During the sliding process of the rotating roller 207 along the parabolic surface of the limiting plate 208, the limiting plate 208 restricts the rotating roller 207 from shifting inward toward the mounting ring 205. At this time, the buffer components 604-606 of the force adjustment mechanism work synchronously: the insert rod 605 slides up and down with the height change of the rotating roller 207 along the parabolic surface, and the buffer spring 606 adjusts its elasticity in real time according to the sliding amplitude, converting the supporting force of the limiting plate 208 into a stable pressure on the pressing plate 202. The 180° area covered by the limiting plate 208... Within the 180-degree circumferential range, the pressure of the buffer spring 206 on the clamping plate 202 gradually increases and then gradually decreases, with the maximum pressure applied to the clamping plate 202 when the rotating roller 207 is on the inner wall of the bottom of the mounting ring 205. This ensures that the clamping force of the stainless steel pipe body 14 remains uniform within this 180-degree rotation range, without any loosening or excessive compression. When the rotating roller 207 rotates with the mounting ring 204 to the area above the horizontal axis of the mounting ring 205, that is, beyond the 180-degree range covered by the limiting plate 208, the rotating roller 207 and the limiting plate 208 completely disengage, realizing the synchronous and stable rotation of the connected stainless steel pipe body 14.

[0044] Working principle: First, manually rotate the mounting plate 2 302 upward around the hinge point. Simultaneously, the mounting plate 2 302 drives the electric telescopic rod 203 fixed to it and the pressure plate 202 connected via the buffer assembly to rise, increasing the gap between the support plate 201 and the pressure plate 202. The stainless steel tube body 14 is then horizontally inserted and placed on top of the support plate 201. Next, the electric slide rail 1 503 is activated, causing the electric slider 1 504 on it to slide along an arc-shaped trajectory. The hook 505, hinged to one side of the electric slider 1 504, moves synchronously. When the hook 505 contacts the inclined end of the baffle 1 501, it moves along its angle, continuing to drive the electric slider 1 504. The hook 505 rotates around the torsion spring hinge until it completely passes through the baffle 1 501. At this point, the end of the baffle 1 501... The hook 505 forms a block, fixing the mounting plate 301 and mounting plate 302 together. Then, the electric telescopic rod 203 is activated to extend and retract downwards. Through the buffer assembly sleeve 601, insert rod 602, and buffer spring 603, the clamping plate 202 is moved downwards until the clamping plate 202 is in contact with the stainless steel tube body 14. The buffer assembly prevents excessive clamping force from deforming the stainless steel tube body 14, thus achieving clamping. Then, another stainless steel tube body 14 is inserted into another clamping mechanism. After precise alignment with the previous stainless steel tube body 14, the above clamping operation is repeated. Afterwards, the electric slide rail 701 is activated, driving the electric slider 702 on it to slide horizontally. The connecting block 703 at the top of the electric slider 702 simultaneously drives the welding torch 1. 2. The laser sensor 15 moves and scans the surface of the stainless steel tube body 14. The position is adjusted according to the detection data at the joint. The welding torch 12 is precisely positioned directly above the joint of the two stainless steel tube bodies 14. Then, the rotating motor 401 is started. The output shaft of the rotating motor 401 drives the gear 404 fixed on it to rotate. Through the chain 405, the other gear 404 meshing with the chain 405 is driven to rotate. This causes the rotating rod 403 and the gears 404 on both sides to rotate synchronously. The gear 404 drives the meshing gear 402 to rotate. The gear 402 drives the fixed mounting ring 204 to rotate. The mounting ring 204 synchronously drives the stainless steel tube body 14, the pressure plate 202 and the opening and closing assembly. During rotation, when the rotating rollers 207 on both sides of the mounting ring 204 rotate to a position below the horizontal axis of the mounting ring 205, i.e., within the 180-degree range covered by the limiting plate 208, the rotating rollers 207 contact and slide smoothly with the double-segment parabolic arc surface of the limiting plate 208. Simultaneously, the buffer assembly 2, sleeve 604, insert rod 605, and buffer spring 606 adjust their elasticity in real time according to the position of the rotating roller 207: if the rotating roller 207 is compressed, causing the insert rod 605 to move downwards, the buffer spring 606 compresses to apply supplementary pressure to the clamping plate 202; if the pressure on the rotating roller 207 decreases, causing the insert rod 605 to move upwards, the buffer spring 606 stretches and resets. This, in conjunction with the buffer assembly, maintains a stable clamping force of the clamping plate 202 on the stainless steel pipe body 14.To prevent the stainless steel pipe body 14 from shifting, the welding torch 12 is started to weld the top of the joint. The welding operation is completed synchronously with the rotation of the stainless steel pipe body 14. During this process, the slag stabilizes, the weld is smooth, and it is less likely to burn through the stainless steel pipe body 14. After welding is completed, the welding torch 12 and the rotating motor 401 are turned off. Then, the electric slide rail 503 is started to control the electric slider 504 to continue sliding downwards. The hook 505 presses against the baffle 502, which rotates around the torsion spring hinge and forms a gap until the hook 505 completely passes through the baffle 502. Then, the electric slide rail 504 is controlled to continue sliding downwards. The sliding rail 503 and electric slider 504 rotate and reset. Hook 505 drives baffle 502 to reset until it engages with baffle 501. After hook 505 completely disengages, the device automatically unlocks. Finally, the electric telescopic rod 203 retracts upwards, causing the pressure plate 202 to lift via the buffer assembly, releasing the stainless steel pipe body 14 and completing the entire operation. This achieves synchronous and stable rotation of the connected stainless steel pipe body, ensuring the welding torch 12 is always positioned at the top of the joint, eliminating the need for manual angle adjustment, improving welding quality, and simplifying operation.

[0045] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for stainless steel pipe machining, comprising: The workbench (1) is characterized by having four fixed support bases (9) at the bottom corners of the work box (1), and further comprising: Mounting bracket (10): There are two mounting brackets (10), and both mounting brackets (10) are fixedly installed at the middle position of one end of the workbench (1); Support frame one (11): The support frame one (11) is fixedly installed at the middle position of one end of the top of the workbench (1); Welding torch (12): The welding torch (12) is slidably mounted on the top of the support frame (11) via a sliding assembly; Air pipe (13): One end of the air pipe (13) is fixedly installed at one end of the welding torch (12), and the other end of the air pipe (13) is fixedly installed between the two mounting brackets (10); Stainless steel pipe body (14): There are two stainless steel pipe bodies (14), and the two stainless steel pipe bodies (14) are respectively horizontally arranged directly above the top of the workbench (1). Laser sensor (15): The laser sensor (15) is located on one side of the welding torch (12), and the end of the laser sensor (15) near the stainless steel tube body (14) is inclined downward. Clamping mechanism: There are two sets of clamping mechanisms, which are respectively set on the top two sides of the workbench (1) to clamp the two stainless steel pipe bodies (14) respectively. Force adjustment mechanism: There are two sets of force adjustment mechanisms, which are respectively set on the top two sides of the workbench (1) to adjust the clamping force applied by the clamping mechanism to the stainless steel pipe body (14); Drive assembly: The drive assembly is located at the bottom of the worktable (1) to drive the two stainless steel tube bodies (14) to rotate synchronously.

2. The welding apparatus for stainless steel pipe machining according to claim 1, characterized by The clamping mechanism includes: a support plate (201), a clamping plate (202), an electric telescopic rod (203), a buffer assembly, two mounting rings (204), and an opening and closing assembly. The support plate (201) is disposed on the outer wall of the bottom circumference of the stainless steel pipe body (14), and the clamping plate (202) is disposed on the outer wall of the top circumference of the stainless steel pipe body (14). The top of the support plate (201) and the bottom of the clamping plate (202) are both disposed in close contact with the outer wall of the circumference of the stainless steel pipe body (14). The electric telescopic rod (203) is vertically positioned directly above the center of the pressure plate (202). The buffer assembly is installed between the bottom of the electric telescopic rod (203) and the top of the pressure plate (202). Two mounting rings (204) are fitted onto one of the stainless steel tube bodies (14). The two mounting rings (204) are located on both sides of the electric telescopic rod (203). The opening and closing assembly is installed between the two mounting rings (204) on the side that are close to each other. The force adjustment mechanism includes: two mounting rings (205), two bearings (206), two rotating rollers (207), two sets of buffer components, and two limiting plates (208). The two mounting rings (205) are each fitted onto one of the stainless steel pipe bodies (14). The two mounting rings (205) are located on both sides of the electric telescopic rod (203). The outer circumferences of the two mounting rings (204) that are far apart from each other are respectively connected to the inner circumferences of the two mounting rings (205) through the two bearings (206). The two rotating rollers (207) are rotated and installed on the side that is close to each other. The two rotating rollers (207) respectively contact the side that is far away from each other on the inner wall of the top of the two mounting rings (205). The two sets of buffer components are respectively installed between the top two sides of the two rotating rollers (207) and the pressure plate (202). The two limiting plates (208) are respectively fixedly installed on the side that is far away from each other on the inner wall of the bottom of the two mounting rings (205). The same support base (209) is fixedly installed between the outer walls of the bottom of the two mounting rings (205).

3. The welding equipment for stainless steel pipe processing as described in claim 2, characterized in that, The opening and closing assembly includes: mounting plate one (301), mounting plate two (302) and connecting plate (303). Both mounting plate one (301) and mounting plate two (302) are arc-shaped. Mounting plate one (301) is fixedly installed between the bottom sides of the two mounting rings one (204) that are close to each other. One end of mounting plate two (302) is hinged to one end of mounting plate two (302). The top of the electric telescopic rod (203) passes through the top of mounting plate two (302) and is fixedly installed with mounting plate two (302). The connecting plate (303) is vertically fixed between the bottom of the support plate (201) and the top of mounting plate one (301).

4. The welding equipment for stainless steel pipe processing as described in claim 3, characterized in that, A baffle plate (501) is fixedly installed at the other end of the top of the mounting plate (301). The baffle plate (501) is inclined downward at the end near the stainless steel tube body (14). A baffle plate (502) is hinged to the other end of the top of the mounting plate (301) via a torsion spring hinge. The baffle plate (502) is located directly below the baffle plate (501). The baffle plate (502) is inclined upward at the end near the stainless steel tube body (14). The top of the baffle plate (502) is attached to one end of the baffle plate (501). An electric slide rail (503) is fixedly installed at the other end of the bottom of the mounting plate (302). An electric slider (504) is slidably installed on the electric slide rail (503). A hook (505) is hinged to one side of the electric slider (504) via a torsion spring hinge.

5. The welding equipment for processing stainless steel pipes as described in claim 2, characterized in that, The drive assembly includes: a rotary motor (401), two gears (402), a rotating rod (403), four gears (404), and a chain (405). The rotary motor (401) is fixedly installed at the bottom of the workbench (1). The two gears (402) are respectively fixedly installed on the outer circumference of two mounting rings (204) located on both sides of the top of the workbench (1). The rotating rod (403) is horizontally rotatably installed between two support bases (209). The two gears (404) are respectively sleeved on both sides of the rotating rod (403). The two gears (404) are respectively meshed with the two gears (402). The other two gears (404) are respectively fixedly installed on the rotating rod (403) and on the output shaft of the rotary motor (401). The chain (405) is respectively meshed with the other two gears (404).

6. The welding equipment for processing stainless steel pipes as described in claim 2, characterized in that, The buffer assembly includes: a sleeve (601), a rod (602), and a buffer spring (603). The sleeve (601) is vertically fixed to the bottom of the electric telescopic rod (203). The rod (602) is vertically arranged. The bottom of the rod (602) is fixedly installed at the center of the top of the pressure plate (202). The top of the rod (602) is inserted into the sleeve (601). The buffer spring (603) is fixedly installed between the inner wall of the top of the sleeve (601) and the top of the rod (602). The second buffer assembly includes: a second sleeve (604), a second insert rod (605), and a second buffer spring (606). The two second sleeves (604) are respectively vertically fixed on the top of the two mounting rings (204) on opposite sides. The second insert rod (605) is vertically arranged, with its bottom inserted into the second sleeve (604). The top of the second insert rod (605) is rotatably mounted with the rotating roller (207). The two second buffer springs (606) are respectively fixedly installed between the bottom of the two second insert rods (605) and the top sides of the pressure plate (202).

7. The welding equipment for stainless steel pipe processing as described in claim 1, characterized in that, The sliding assembly includes: electric slide rail two (701), electric slider two (702) and connecting block (703). The electric slide rail two (701) is horizontally fixedly installed on the top of the support frame one (11). The electric slider two (702) is slidably installed on the electric slide rail two (701). The connecting block (703) is fixedly installed on the top of the electric slider two (702). The top two sides of the connecting block (703) are fixedly installed to the bottom of the welding torch (12) and the bottom of the laser sensor (15) respectively.

8. The welding equipment for processing stainless steel pipes as described in claim 2, characterized in that, The limiting plate (208) is arranged in a left-right symmetrical double-segment parabola. The limiting plate (208) covers a 180-degree central angle along the circumference of the second mounting ring (205). The limiting plate (208) is located below the horizontal axis of the second mounting ring (205).

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