Self-adapting plasma gouging special machine for outer girth seam of conical tank

Abstract

An adaptive plasma air gouging machine for the outer circumferential seam of a conical tank is disclosed. The machine's sliding device moves freely on a movable base. The inclined slide of the movable base has a 15-degree tilt angle, and a stop is fixed at the front end of the inclined slide. The sliding device comprises a freely sliding carriage, a transverse slide mechanism, a longitudinal slide mechanism, an air gouging gun clamp, a top support device, a connecting rod fixing column, and a connecting rod. The upper part of the freely sliding carriage is movably connected to the transverse slide mechanism. This invention marks the first time that automatic plasma air gouging has been used in the air gouging and cleaning process of the outer circumferential seam of conical tanks in railway transport tank cars, replacing the traditional manual carbon arc air gouging process. This eliminates the need for carbon rod consumables. The combination of this invention and plasma air gouging significantly reduces the difficulty and labor intensity for workers, and reduces the grinding intensity of the gouged groove. Simultaneously, the efficiency of air gouging and cleaning is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, and in particular to an adaptive plasma air planer. Background Technology

[0002] The tank body of a large railway tank car is formed by welding together multiple cylindrical sections and end caps to create a slightly conical cylinder with a flat top and flared bottom. The welding method uses submerged arc welding for double-sided welding. The wall thickness of the cylindrical sections is generally 9-12mm. The welding process involves first welding the internal circumferential seam, then performing carbon arc gouging on the external circumferential seam to remove the groove to a depth of approximately 3mm. After smoothing the groove, submerged arc welding is performed on the outer circumference. All submerged arc welds undergo X-ray inspection after welding, with very strict quality requirements. However, due to the short and brittle nature of the carbon arc gouging rod, automatic or semi-automatic methods are not possible, necessitating manual operation. Manual carbon arc gouging requires a high level of skill from the worker, making it difficult to ensure the symmetry and depth of the groove and weld, resulting in a huge amount of post-gouging grinding. This significantly reduces the quality of the gouging and production efficiency. Furthermore, manual carbon arc gouging produces a large amount of welding fumes, severely polluting the working environment.

[0003] The existing root cleaning method uses manual carbon arc gouging to clean the root of the outer circumferential weld before welding. After root cleaning, a groove with a depth of 3mm and a width of about 10mm is formed. The purpose is to form a U-shaped bevel on the weld surface, promote the penetration depth of the outer circumferential submerged arc weld, and ensure that the weld on both sides can be completely penetrated.

[0004] Existing manual carbon arc gouging technology suffers from low efficiency in root clearing. Because it is entirely manual, the depth and width tolerances of the gouged grooves are large, and the center symmetry of the grooves is poor. Groove eccentricity often leads to incomplete penetration of the submerged arc weld on both sides, resulting in numerous rework operations. To improve the quality of carbon arc gouging, the gouging process should be automated or semi-automated as much as possible. However, carbon rods, formed by extrusion of carbon, graphite, and binders, are hard and typically 355mm in length. Due to their characteristics, continuous conveying is not possible. Some tank trucks have a horizontal upper section and a slightly deflected conical lower section. When the tank rotates on the roller frame, the spatial position of the gouging contact surface changes continuously with the circumferential arc of the groove as the tank rotates, making it difficult to maintain a consistent arc length during root clearing. Furthermore, manual carbon arc gouging produces significant amounts of smoke and noise. Summary of the Invention

[0005] The purpose of this invention is to provide a specialized plasma air gouging machine for the outer circumferential seams of conical tanks, enabling plasma air gouging to be applied to the cleaning of the outer circumferential seams of non-circular conical tanks. The plasma air gouging adaptively tracks changes in the spatial position of the working surface of the tank circumferential seam, maintaining a consistent arc length at all times. This achieves automation, improves the quality of the gouging, and increases gouging efficiency. It also reduces the labor intensity and operational difficulty for workers, and minimizes noise and dust pollution to the working environment.

[0006] This utility model mainly includes an adaptive plasma air planer sliding device, a moving base device, and a stop.

[0007] The adaptive plasma air planer sliding device moves freely on the mobile base device. The tilting slide of the mobile base device has a 15-degree tilt angle. To prevent the adaptive plasma air planer sliding device from falling, a stop is fixed at the front end of the tilting slide of the mobile base device.

[0008] The adaptive plasma air planer sliding device consists of a free-sliding carriage, a transverse slide mechanism, a longitudinal slide mechanism, an air planer gun clamping assembly, a top support device, a connecting rod fixing column, and a connecting rod.

[0009] The upper part of the freely sliding carriage is movably connected to the transverse slide mechanism, and the top abutment device is fixed to one side of the transverse slide mechanism. A longitudinal slide mechanism is movably connected to the upper part of the transverse slide mechanism, and the transverse and longitudinal slide mechanisms are staggered. A longitudinal slide connecting plate with a connecting rod fixing post in the middle is bolted to the upper part of the longitudinal slide mechanism via a longitudinal slide slider connecting hole and the longitudinal slide slider itself. The connecting rod is sleeved on the connecting rod fixing post, and the air planer gun clamping assembly is movably connected to the connecting rod. The air planer gun clamping assembly includes an upper clamping fixture for the air planer gun, a lower clamping fixture for the air planer gun, an infrared tracker slide, a slider, an infrared angle adjustment rod, an infrared tracker fixing seat, an infrared tracker, an infrared tracker fixing buckle, and an angle adjustment rod. The upper and lower clamps of the air planer gun are symmetrically arranged, with the air planer gun positioned between them. Through holes are provided at the folded lugs at both ends of both clamps, and the two clamps are locked together. An L-shaped infrared tracker slide is fixed to the upper part of the upper clamp, and an L-shaped slider is movably connected to it. The L-shaped slider and the infrared angle adjustment rod are movably connected. A cylindrical infrared tracker mounting base is fixed to the upper end of the infrared angle adjustment rod. The infrared tracker mounting base and the infrared tracker are clamped together by an infrared tracker fixing clip and secured with a clip locking bolt. Two angle adjustment rods are fixed to the lower part of the lower clamp, and their lower ends are movably connected to a connecting rod.

[0010] The support device includes a fixed support rod, a sliding support rod, a nut, a U-shaped support wheel, a fixing pin, a fixing nut, and a spherical caster wheel. One end of the fixed support rod is fixed to the outside of the transverse slide connecting plate, and has several adjustment holes. One side of one end of the sliding support rod has a fixing hole, and a nut is fixed to the outside of the fixing hole. After aligning the adjustment hole and the fixing hole, the fixing bolt is screwed into the fixing nut on the outside of the fixing hole. The other end of the sliding support rod has a groove, with a U-shaped support wheel positioning hole at the upper and lower steel plates of the groove. A U-shaped support wheel shaft hole is located at the center of the U-shaped support wheel. After aligning the U-shaped support wheel positioning hole and the U-shaped support wheel shaft hole, it is fixed by a fixing pin, allowing the U-shaped support wheel to rotate freely. Both ends of the U-shaped support wheel have folded ears, and a spherical caster wheel fixing hole is located at the center of the folded ears. The spherical caster wheel is locked to the folded ears at the end of the U-shaped support wheel by a fixing nut.

[0011] The free-sliding trolley comprises a cover plate, web plates, fixed bearing sleeves, pulleys, and a front end plate. The cover plate has transverse sliding platform fixing holes. At the lower part of the cover plate, on both sides of the transverse sliding platform fixing holes, a web plate of the same length as the cover plate is fixed. The two ends of the two web plates are connected by fixed bearing sleeves, and pulleys are installed at both ends of each fixed bearing sleeve. A front end plate of the same width as the cover plate is fixed to one side of each of the two web plates.

[0012] The pulley system consists of bearings, bearing sleeves, a central shaft, and V-groove bearing pulleys. Four bearings are embedded in the ends of the bearing sleeves, the central shaft passes through the bearings fixed at both ends of the bearing sleeves, and the four V-groove bearing pulleys are movably connected to both ends of the central shaft.

[0013] The transverse slide mechanism includes a transverse slide, a transverse slide slider, and a transverse slide connecting plate. The bottom of the transverse slide has bolt holes corresponding to the transverse slide fixing holes on the cover plate, for movably connecting the cover plate. The upper part of the transverse slide has a transverse slide slider. The channel steel transverse slide connecting plate with a lower opening has transverse slide slider connecting holes for movably connecting the transverse slide slider.

[0014] The longitudinal slide mechanism includes a longitudinal slide, a longitudinal slide slider, and a longitudinal slide connecting plate. The longitudinal slide and the transverse slide connecting plate are movably connected in an alternating manner. The upper part of the longitudinal slide has a channel steel type longitudinal slide slider with a downward opening. The longitudinal slide connecting plate has a longitudinal slide slider connection hole for movably connecting the longitudinal slide slider.

[0015] The lower end of the angle adjustment rod has a bolt hole. The connecting rod consists of two single connecting rods that snap together. A connecting hole is located on both the left and right folding lugs. The left folding lug is inserted between the two angle adjustment rods, and the connecting hole on the left folding lug is locked to the bolt hole at the lower end of the angle adjustment rod using locking bolt A. The two right folding lugs are locked using locking bolt B.

[0016] The movable base device includes a tilting slide, tilting rails, support legs, and steering wheels. Two tilting rails, made of angle steel with upward-facing bends, are mounted on the tilting slide. These rails are positioned on either side of a fixed support. The parallel distance between the two tilting rails is equal to the center distance of the V-groove bearing pulley, allowing the trolley to slide freely on the tilting rails. Adjustable-length support legs are located at the bottom of the tilting slide, and steering wheels are located below the support legs.

[0017] The outriggers include fixed outriggers, adjustable outriggers, and locating pins. The upper ends of the four fixed outriggers are fixed to the lower part of the tilting slide. Each fixed outrigger has a locating hole at its lower part, and each fixed outrigger contains an adjustable outrigger with several adjusting holes. The locating holes align with the adjusting holes and are connected by locating pins. The steering wheels include directional wheels and lockable swivel wheels. Directional wheels are fixed to the bottom of the two left adjustable outriggers, and lockable swivel wheels are fixed to the bottom of the two right adjustable outriggers. A crossbar is provided between adjacent fixed outriggers.

[0018] Compared with the prior art, this utility model has the following advantages: (1) For the first time, automatic plasma air gouging was used to clean the outer circumferential seam of the conical tank of railway transport tank cars, replacing the traditional manual carbon arc air gouging process. Noise was reduced, dust pollution was reduced, and the use of carbon rods was eliminated. By combining this utility model with plasma air gouging, the difficulty and labor intensity of workers' operation were greatly reduced, and the grinding intensity of the gouged groove was reduced. At the same time, the efficiency of air gouging was improved, and the consumption of energy materials such as electricity, air power, grinding wheels, grinding discs, and carbon rods was greatly reduced.

[0019] (2) An inclined track design is adopted to make the sliding device of the adaptive plasma air gouging machine automatically track the annular seam of the conical tank and control the arc length to maintain consistency.

[0020] (3) In the process of cleaning the circumferential seam of the conical tank body of railway tank cars, a cleaning process of automatic plasma air gouging is implemented for the outer circumferential seam of the tank body with constantly changing processing surface.

[0021] (4) Use infrared light to manually track the tank circumferential seam detection line to prevent the center of the groove from deviating from the circumferential seam design. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a front view of the application of the adaptive plasma air gouging machine for the external circumferential seam of the conical tank of this utility model; Figure 2 This is a top view of the conical tank of this utility model; Figure 3 An enlarged view of the sliding device of the adaptive plasma air gouging machine of this utility model; Figure 4 This is a bottom view of the freely sliding trolley of this utility model; Figure 5 This is an enlarged view of the pulley assembly of this utility model; Figure 6 This is a front view of the transverse slide connecting plate of this utility model; Figure 7 This is a top view of the transverse slide connecting plate of this utility model; Figure 8 The main view of the top support device of this utility model; Figure 9 This is a top view of the installation of the spherical caster wheel according to this utility model; Figure 10 This is a front view of the longitudinal slide connecting plate of this utility model; Figure 11 This is a top view of the longitudinal slide connecting plate of this utility model; Figure 12 Left view of the air planer gun clamping assembly of this utility model; Figure 13 This is a top view of the connecting rod of this utility model; Figure 14 This is a top view of the slide table of the infrared tracker of this utility model; Figure 15 Left view of the movable base assembly of this utility model; In the diagram: 1-Adaptive plasma air planer sliding device, 2-Moving base device, 3-Freely sliding carriage, 4-Horizontal slide, 5-Horizontal slide connecting plate, 6-Horizontal slide slider, 7-Horizontal slide adjustment knob, 8-Longitudinal slide adjustment knob, 9-Longitudinal slide, 10-Longitudinal slide connecting plate, 11-Longitudinal slide slider, 12-Connecting rod, 13-Air planer gun clamping assembly, 14-Air planer gun, 15-Infrared emitter, 16-Top support device, 17-Pulley assembly, 18- - Cover plate, 19- Web plate, 20- Front end plate, 21- Fixed bearing sleeve, 22- Transverse slide fixing hole, 23- Bearing, 24- Shim, 25- V-groove bearing pulley, 26- Nut, 27- Central shaft, 28- Transverse slide slider connecting hole, 29- Fixed support rod, 30- Adjusting hole, 31- Sliding support rod, 32- Fixed hole, 33- Fixed bolt, 34- U-shaped guide wheel positioning hole, 35- Fixed pin, 36- U-shaped guide wheel, 37- U-shaped guide wheel shaft hole, 38- Spherical... 39 - Spherical caster wheel fixing hole; 40 - Fixing nut; 41 - Longitudinal slide block slider connecting hole; 42 - Connecting rod fixing post; 43 - Single-piece connecting rod; 44 - Locking bolt B; 45 - Connecting hole; 46 - Upper clamp of air planer gun; 47 - Lower clamp of air planer gun; 48 - Locking bolt; 49 - Angle adjustment rod; 50 - Locking bolt A; 51 - Infrared tracker slide; 52 - L-shaped slider; 53 - Positioning bolt; 54 - Infrared tracker adjustment bolt; 55 - Infrared... Angle adjustment rod, 56-external tracker fixing seat, 57-infrared tracker fixing buckle, 58-end, 59-buckle locking bolt, 60-tank body circumferential seam, 61-weld center inspection line, 62-sliding hole, 63-tilting slide table, 64-stop, 65-tilting slide rail, 67-crossbar, 68-positioning pin, 69-adjustable support leg, 70-lockable universal wheel, 71-directing wheel, 72-positioning hole, 73-adjusting hole, 74-conical tank body, 75-roller frame, 76-cylinder section. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0025] exist Figures 1 to 15As shown in the schematic diagram of this utility model, the utility model mainly includes an adaptive plasma air planer sliding device 1, a movable base device 2, and a stop 64. The adaptive plasma air planer sliding device moves freely on the movable base device. The inclined slide 63 of the movable base device has a 15-degree tilt angle. To prevent the adaptive plasma air planer sliding device from falling, a stop 64 is fixed at the lower end of the inclined slide of the movable base device.

[0026] The adaptive plasma air planer sliding device consists of a free-sliding carriage, a transverse slide mechanism, a longitudinal slide mechanism, an air planer gun clamping assembly, a top support device, a connecting rod fixing column, and a connecting rod.

[0027] The upper part of the freely sliding trolley 3 is movably connected to the transverse slide mechanism, and the top abutment device is fixed to one side of the transverse slide mechanism. A longitudinal slide mechanism is movably connected to the upper part of the transverse slide mechanism, and the transverse and longitudinal slide mechanisms are staggered. The longitudinal slide connecting plate 10, with a connecting rod fixing post 42 in the middle, is bolted to the upper part of the longitudinal slide mechanism via the longitudinal slide slider connecting hole 41 and the longitudinal slide slider 11 itself. The connecting rod 12 is sleeved on the connecting rod fixing post, and the air gouging gun clamping assembly is movably connected to the connecting rod.

[0028] The air gouging gun clamping assembly 13 includes an upper air gouging gun clamp, a lower air gouging gun clamp, an infrared tracker slide, a slider, an infrared angle adjustment rod, an infrared tracker mounting base, an infrared tracker, an infrared tracker fixing buckle, an angle adjustment rod, and an air gouging gun. The upper air gouging gun clamp 46 and the lower air gouging gun clamp 47 are symmetrically arranged vertically. The air gouging gun 14 is placed between the upper and lower air gouging gun clamps. Through holes are provided at the folded lugs at both ends of the upper and lower air gouging gun clamps. The upper and lower air gouging gun clamps are locked together at both ends by locking bolts 48. An L-shaped infrared tracker slide 51 is fixed to the upper part of the upper air gouging gun clamp 46. A sliding hole 62 is provided on the infrared tracker slide, and a through hole is provided on the lower surface of the L-shaped slider 52. The infrared tracker slide and the L-shaped slider are connected by positioning bolts 53. Both the L-shaped slider and the infrared angle adjustment rod 55 have round holes, which are connected by infrared tracker adjustment bolts 54. A cylindrical infrared tracker mounting base 56 is fixed to the upper end of the infrared angle adjustment rod. The infrared tracker mounting base and the infrared transmitter 15 are clamped together by infrared transmitter fixing buckles 57 and secured by buckle locking bolts 59. Two angle adjustment rods 49 are fixed to the lower part of the air gouging gun's lower clamp 47, and the lower ends of the angle adjustment rods 49 are movably connected to the connecting rod.

[0029] The top support device 16 includes a fixed support rod, a sliding support rod, a nut, a U-shaped support wheel, a fixing pin, a fixing nut, and a spherical caster wheel. One end of the fixed support rod 29 is fixed to the outside of the transverse slide connecting plate. Several adjustment holes 30 are opened on the fixed support rod 29. One side of one end of the sliding support rod 31 has a fixing hole 32. A nut is fixed on the outside of the fixing hole. After the adjustment hole and the fixing hole are aligned, the fixing bolt 33 is screwed into the fixing nut on the outside of the fixing hole. The other end of the sliding support rod has a groove. There is a U-shaped support wheel positioning hole 34 on the upper and lower steel plates of the groove. A U-shaped support wheel shaft hole 37 is opened at the center of the U-shaped support wheel 36. After the U-shaped support wheel positioning hole 34 and the U-shaped support wheel shaft hole 37 are aligned, they are fixed by a fixing pin 35. The U-shaped support wheel can rotate freely. Both ends of the U-shaped support wheel have folded ears, and a spherical universal wheel fixing hole 38 is opened in the center of the folded ears. The spherical universal wheel 39 is locked and fixed to the end folded ears of the U-shaped support wheel by the fixing nut 40.

[0030] The free-sliding trolley 3 includes a cover plate, a web plate, fixed bearing sleeves, pulleys, and a front end plate. The cover plate 18 has transverse sliding platform fixing holes 22. At the lower part of the cover plate, on both sides of the transverse sliding platform fixing holes, a web plate 19 of the same length as the cover plate is fixed. The two ends of the two web plates are connected by fixed bearing sleeves 21, and pulleys are provided at both ends of each fixed bearing sleeve. A front end plate 20 of the same width as the cover plate is fixed to one side of each of the two web plates. When the device is not in operation, as the adaptive plasma air gouging machine sliding device 1 slides freely forward along the inclined track, the front end plate 20 can be blocked by a stop 64 to prevent it from slipping.

[0031] The pulley assembly 17 includes bearings, bearing sleeves, a central shaft, and V-groove bearing pulleys. Four bearings 23 are respectively embedded in the ends of the bearing sleeves, and the central shaft 27 is inserted into the bearings fixed at both ends of the bearing sleeves. At both ends of the central shaft, a washer 24, a V-groove bearing pulley 25, and a nut 26 are inserted in sequence.

[0032] The transverse slide mechanism includes a transverse slide 4, a transverse slide slider 6, and a transverse slide connecting plate 5. The bottom of the transverse slide 4 has bolt holes corresponding to the transverse slide fixing holes 22 on the cover plate, for movably connecting the cover plate. The upper part of the transverse slide 4 is equipped with the transverse slide slider 6. The channel steel transverse slide connecting plate 5 with its lower opening has transverse slide slider connecting holes 28 for movably connecting the transverse slide slider 6.

[0033] The longitudinal slide mechanism includes a longitudinal slide 9, a longitudinal slide slider 11, and a longitudinal slide connecting plate 10. The longitudinal slide 9 and the transverse slide connecting plate 5 are movably connected in an alternating manner. The upper part of the longitudinal slide 9 is provided with a channel steel type longitudinal slide slider 11 with a downward opening. The longitudinal slide connecting plate 10 has a longitudinal slide slider connecting hole 41 for movably connecting the longitudinal slide slider 11.

[0034] The lower end of the angle adjusting rod 49 has a bolt hole. The connecting rod is composed of two single connecting rods 43 that are fastened together. A connecting hole is opened on both the left and right folding lugs. The left folding lug is inserted between the two angle adjusting rods. The connecting hole 45 on the left folding lug side is locked to the bolt hole at the lower end of the angle adjusting rod by a locking bolt A50. The two right folding lugs are locked by locking bolts B44.

[0035] The movable base device includes a tilting slide, tilting rails, support legs, and steering wheels. Two tilting rails 65 are provided on the tilting slide. The tilting rails 65 are made of angle steel with upward-facing bends and are positioned on both sides of the fixed support. The parallel distance between the two tilting rails is equal to the center distance of the V-groove bearing pulley 25, allowing the freely sliding trolley to slide freely on the tilting rails. Adjustable-length support legs are provided at the bottom of the tilting slide, and a crossbar 67 is provided between adjacent fixed support legs.

[0036] The support legs include fixed support legs, adjustable support legs, and positioning pins. The upper ends of the four fixed support legs are fixed to the lower part of the inclined slide. The lower part of the fixed support legs has positioning holes 72. Each fixed support leg has an adjustable support leg. The adjustable support leg has several adjustment holes 73. The positioning holes are aligned with the adjustment holes and connected by positioning pins 68.

[0037] The steering wheel includes a fixed wheel and a lockable swivel wheel. Fixed wheels 71 are fixed to the bottom of the two adjustable legs 69 on the left side, and lockable swivel wheels 70 are fixed to the bottom of the two adjustable legs 69 on the right side.

[0038] This utility model will be further explained using air gouging to clean the outer circumferential seam of a GQ70 tank truck as an example. For instance... Figure 2 As shown, the tank body is composed of six cylindrical sections 76 and two end caps 58, which are joined together to form a conical tank body 74. After joining, six circumferential seams 60 are formed in the tank body, and weld center inspection lines 61 are marked on both sides of each circumferential seam. First, the internal circumferential seams of the tank body are welded using submerged arc welding. Then, the adaptive plasma gouging device of this invention is used for gouging to remove the root. After gouging, the required groove depth and width should be consistent. Before using this invention's device, the conical tank body 74 is placed on the roller frame 75. During use, the entire device is first arranged as follows... Figure 1As shown, move the device to the desired circumferential seam position. Position the spherical caster in the U-shaped support wheel against the tank surface and adjust the distance between the moving base and the tank surface. Move the free-sliding trolley along the inclined track upwards to the middle of the inclined track, ensuring the entire air gouging device is directly facing the tank surface. After positioning, lock the lockable caster at the bottom of the moving base. Adjust the longitudinal slide adjustment knob to bring the plasma air gouging gun nozzle close to the tank surface, obtaining the required arc-starting distance. Both the transverse and longitudinal slides are existing technologies, and their adjustment knobs are integrated. Adjust the transverse slide adjustment knob to align the center of the plasma air gouging gun nozzle with the circumferential seam of the tank. Adjust the transverse slider and the longitudinal infrared angle adjustment lever to align the infrared emitted by the infrared emitter with the weld center detection line. At this point, turn on the roller frame power and adjust the required speed to rotate the conical tank at a uniform speed. Then, press the plasma air gouging gun power switch to perform air gouging and root cleaning. As the conical tank rotates, the change in the curvature of the tank's circumferential seam surface drives the spherical caster wheel, causing the freely sliding trolley to slide freely up and down along the inclined slide rail. When the circumferential seam rotates to a point where the curvature gradually increases, the tank surface gradually moves closer to the moving base assembly, thus pushing the adaptive plasma gouging machine's sliding device assembly to slide obliquely upwards along the inclined slide rail. When the circumferential seam rotates to a point where the curvature gradually decreases, the tank surface gradually moves away from the moving base assembly. At this time, the adaptive plasma gouging machine's sliding device assembly, under its own gravity, causes the spherical caster wheel to rest against the tank surface, sliding obliquely downwards along the inclined slide rail. Therefore, as... Figure 1 As shown, regardless of changes in the tank surface, the distance between the plasma gouging torch nozzle and the circumferential seam surface of the tank remains consistent. This ensures a consistent arc length during gouging, resulting in consistent groove depth and width. This enables the adaptive plasma gouging machine's sliding device to automatically track changes in the tank's curvature. Since the conical tank rotates and experiences lateral movement, to prevent the groove center from deviating from the circumferential seam, the operator only needs to adjust the lateral slide adjustment knob during gouging to ensure the infrared emitter always aligns with the weld center detection line. This guarantees the groove center is aligned with the circumferential seam, preventing deviation.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special-purpose adaptive plasma gouging machine for the outer circumferential seam of a conical tank, mainly comprising an adaptive plasma gouging machine sliding device, a moving base device, and a stop, characterized in that: The adaptive plasma air planer's sliding device moves freely on a movable base. The movable base's tilting slide has a 15-degree tilt angle, and a stop is fixed at the front end of the tilting slide. The adaptive plasma air planer's sliding device includes a freely sliding carriage, a transverse slide mechanism, a longitudinal slide mechanism, an air planer gun clamping assembly, a top stop device, a connecting rod fixing column, and a connecting rod. The upper part of the freely sliding carriage is movably connected to the transverse slide mechanism, and the top stop device is fixed to one side of the transverse slide mechanism. The upper part of the transverse slide mechanism is movably connected to the longitudinal slide mechanism. The transverse and longitudinal slide mechanisms are staggered, with a connecting rod fixing column in the middle for the longitudinal slide connecting plate. The air planer gun is connected to the longitudinal slide block via a connecting hole and bolts, and is fixed to the upper part of the longitudinal slide mechanism. A connecting rod is sleeved on a connecting rod fixing post. The air planer gun clamping assembly is movably connected to the connecting rod. The air planer gun clamping assembly includes an upper clamping fixture, a lower clamping fixture, an infrared tracker slide, a slider, an infrared angle adjustment rod, an infrared tracker fixing seat, an infrared tracker, an infrared tracker fixing buckle, and an angle adjustment rod. The upper and lower clamping fixtures are symmetrically arranged, with the air planer gun positioned between them. Through holes are provided at the folded lugs at both ends of the upper and lower clamping fixtures. The upper clamp and the lower clamp of the air gouging gun are locked at both ends. An L-shaped infrared tracker slide is fixed to the upper part of the upper clamp of the air gouging gun. An L-shaped slider is movably connected to the infrared tracker slide. The L-shaped slider and the infrared angle adjustment rod are movably connected. A cylindrical infrared tracker fixing seat is fixed to the upper end of the infrared angle adjustment rod. The infrared tracker fixing seat and the infrared tracker are clamped by the infrared tracker fixing buckle and fixed by the buckle locking bolt. Two angle adjustment rods are fixed to the lower part of the lower clamp of the air gouging gun. The lower end of the angle adjustment rod is movably connected to the connecting rod. The top support device includes a fixed support rod, a sliding support rod, a nut, a U-shaped support wheel, a fixing pin, a fixing nut, and a spherical universal wheel. The fixed support rod is... The sliding support rod is fixed to the outside of the transverse sliding table connecting plate. An adjustment hole is opened on the fixed support rod. A fixing hole is opened on one side of one end of the sliding support rod. A fixing nut is fixed on the outside of the fixing hole. After the adjustment hole and the fixing hole are aligned, the fixing bolt is screwed into the fixing nut on the outside of the fixing hole. The other end of the sliding support rod has a groove. There is a U-shaped wheel positioning hole on the upper and lower steel plates of the groove. A U-shaped wheel shaft hole is opened at the center of the U-shaped wheel. After the U-shaped wheel positioning hole and the U-shaped wheel shaft hole are aligned, they are fixed by fixing pin. The U-shaped wheel can rotate freely. There are folded ears at both ends of the U-shaped wheel. A ball universal wheel fixing hole is opened at the center of the folded ears. The ball universal wheel is locked and fixed to the folded ears at the end of the U-shaped wheel by fixing nut.

2. The adaptive plasma air gouging machine for the outer circumferential seam of a conical tank according to claim 1, characterized in that: The free-sliding trolley includes a cover plate, a web plate, a fixed bearing sleeve, pulleys, and a front end plate. The cover plate has a transverse slide fixing hole. On the lower part of the cover plate and on both sides of the transverse slide fixing hole, a web plate of the same length as the cover plate is fixed. The two ends of the two web plates are connected by fixed bearing sleeves. Pulleys are provided at both ends of each fixed bearing sleeve. A front end plate of the same width as the cover plate is fixed on one side of the two web plates.

3. A special-purpose plasma air gouging machine for the external circumferential seam of a conical tank according to claim 1 or 2, characterized in that: The transverse slide mechanism includes a transverse slide, a transverse slide slider, and a transverse slide connecting plate. The bottom of the transverse slide has bolt holes corresponding to the transverse slide fixing holes of the cover plate for movably connecting the cover plate. The upper part of the transverse slide is provided with a transverse slide slider. The channel steel transverse slide connecting plate with the lower opening has transverse slide slider connecting holes for movably connecting the transverse slide slider.

4. The adaptive plasma air gouging machine for the outer circumferential seam of a conical tank according to claim 1, characterized in that: The longitudinal slide mechanism includes a longitudinal slide, a longitudinal slide slider, and a longitudinal slide connecting plate. The longitudinal slide and the transverse slide connecting plate are movably connected in an alternating manner. The upper part of the longitudinal slide is provided with a channel steel type longitudinal slide slider with a downward opening. The longitudinal slide connecting plate has a longitudinal slide slider connecting hole for movably connecting the longitudinal slide slider.

5. The adaptive plasma air gouging machine for the outer circumferential seam of a conical tank according to claim 1, characterized in that: The mobile base device includes an inclined slide, inclined rails, support legs, and steering wheels. Two inclined rails are provided on the inclined slide, which are made of angle steel with the angle pointing upwards. The inclined rails are placed on both sides of the fixed support. The parallel distance between the two inclined rails is equal to the center distance of the V-groove bearing pulley. The free-sliding trolley can slide freely on the inclined rails. Adjustable length support legs are provided at the bottom of the inclined slide, and steering wheels are provided at the bottom of the support legs.

6. The adaptive plasma air gouging machine for the outer circumferential seam of a conical tank according to claim 2, characterized in that: The pulley system consists of bearings, bearing sleeves, a central shaft, and V-groove bearing pulleys. Four bearings are embedded in the ends of the bearing sleeves, and the central shaft passes through the bearings fixed at both ends of the bearing sleeves. The four V-groove bearing pulleys are movably connected to both ends of the central shaft.

7. A special-purpose plasma air gouging machine for the external circumferential seam of a conical tank according to claim 2, characterized in that: The lower end of the angle adjustment rod has a bolt hole. The connecting rod is composed of two single connecting rods that are fastened together. There is a connecting hole on the left folding lug and the right folding lug. The left folding lug is inserted into the middle of the two angle adjustment rods. The connecting hole on the left folding lug side is locked to the bolt hole at the lower end of the angle adjustment rod by locking bolt A. The two right folding lugs are locked by locking bolt B.

8. A special-purpose plasma air gouging machine for the external circumferential seam of a conical tank according to claim 5, characterized in that: The inclined slide rail is made of angle steel with the angle pointing upwards.

9. A special-purpose plasma air gouging machine for the external circumferential seam of a conical tank according to claim 5, characterized in that: The outriggers include fixed outriggers, adjustable outriggers, and positioning pins. The upper ends of the four fixed outriggers are fixed to the lower part of the inclined slide. The lower part of the fixed outriggers has positioning holes. Each fixed outrigger contains an adjustable outrigger, and the adjustable outrigger has an adjustment hole. The positioning holes and the adjustable holes are aligned and connected by positioning pins. The steering wheels include directional wheels and lockable swivel wheels. Directional wheels are fixed to the bottom of the two left adjustable outriggers, and lockable swivel wheels are fixed to the bottom of the two right adjustable outriggers.

10. A special-purpose plasma air gouging machine for the external circumferential seam of a conical tank according to claim 9, characterized in that: A crossbar is provided between two adjacent fixed legs.

Images