Special welding and cutting machine for 360-degree welding end socket

Abstract

According to the special welding and cutting machine for the 360-degree welding end socket, through the integrated design, the cutting function, the welding function and the positioning function are integrated in one device, the integrated operation of end socket machining is achieved, the labor intensity of workers is relieved, meanwhile, machining errors caused by human factors are avoided, the production efficiency and the machining precision are remarkably improved, and the production cost is reduced. And the complexity and the time cost of manual operation are reduced. The positions of the welding gun and the cutting gun can be flexibly adjusted, and the welding gun and the cutting gun are matched with a high-precision rotating seat and a clamping jaw block system, so that uniform and accurate circumferential operation of welding and cutting operation on the end socket can be ensured, and the machining quality and consistency of the end socket are improved. And the design of the clamping jaw blocks and the flange supporting frame can be adjusted according to the seal heads of different sizes, so that the special machine can be suitable for machining the seal heads of various specifications, and the universality and flexibility of the equipment are enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of end cap processing equipment, specifically a 360° welding and cutting machine for welding end caps. Background Technology

[0002] An end cap, also known as an end cover, is a component used to seal the end of a container, isolating it from the internal and external media. It is one of the main pressure-bearing components of a pressure vessel and is widely used in industries such as chemical, petroleum, food, pharmaceutical, and construction. The fabrication of existing end caps typically requires a flange. This necessitates cutting a hole in the center of the end cap to fit the flange, and then welding the flange to the hole. This process requires appropriate cutting, welding, and positioning equipment. Workers must install the end cap onto the positioning equipment, use the cutting equipment to make circumferential cuts around the end cap, and then weld the flange to the end cap. This process is physically demanding, and the quality of the end cap processing depends heavily on the operator's skill, resulting in generally low overall processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a 360° welding head cutting machine that integrates cutting equipment, welding equipment and positioning equipment into one unit, replacing traditional manual cutting and welding of heads, and solving the problems in the prior art.

[0004] The utility model discloses a technical scheme that solves its technical problems is: a kind of 360 ° welding head welding cutting special machine, including frame, vertically arranged stand is installed on frame, the top of stand is installed with the horizontal rotation swing arm, swing arm is installed with the welding torch and cutting torch of position-adjustable at the end away from stand, welding torch and cutting torch are located at the both sides position of swing arm respectively, swing arm rotation axis is installed with wire feeder on the upside, cutting numerical control equipment is installed on the side of stand, welding wire of wire feeder enters into welding torch, cutting numerical control equipment is connected with cutting torch by gas circuit pipeline, the bottom position corresponding to welding torch and cutting torch is equipped with placing table on frame, rotating seat that can horizontally rotate is installed on placing table, flange support frame that cooperates with head is equipped on rotating seat, rotating seat is also installed with the several jaw blocks of circumferentially arranged, each jaw block can move synchronously along the diameter direction of rotating seat, when jaw block moves close to the center position of rotating seat, head workpiece can be clamped and fixed on flange support frame. The top of stand is provided with vertical shaft, the end of swing arm is equipped with the shaft sleeve that cooperates with vertical shaft, limit bearing is installed between shaft sleeve and vertical shaft, swing locking mechanism is also equipped on stand, swing locking mechanism includes guide sleeve arranged on the side of stand, limit plug is installed on the upper end of vertical shaft that is fitted in guide sleeve and can be vertically lifted, brake handle is hingedly connected to the lower end of vertical shaft that extends out of guide sleeve, H-shaped frame is hingedly installed at the lower position of guide sleeve, H-shaped frame is hingedly connected with brake handle, rotating brake handle can make vertical shaft move upwards, so that limit plug contacts swing arm and limits the swing of swing arm. The side of swing arm is installed with cross slide, first locking sleeve is equipped on the slide plate of cross slide, welding torch clamp is installed with welding torch through first cross shaft by first locking sleeve, welding torch is fixedly arranged in welding torch clamp, and welding torch can be adjusted by rotating relative to swing arm. The side of swing arm is installed with ball screw slide, second locking sleeve is installed on the slide plate of ball screw slide, vertical moving sleeve is connected with second locking sleeve through second cross shaft, and cutting torch is cooperatively arranged in vertical moving sleeve, wherein vertical moving rack is installed on cutting torch, and adjusting handle that can rotate is installed on vertical moving sleeve, gear that is engaged with vertical moving rack is arranged at the end of adjusting handle that extends into vertical moving sleeve, and rotating adjusting handle can make cutting torch vertically lift relative to vertical moving sleeve. Rotating motor is installed at the bottom of placing table, the output shaft of rotating motor is upwards and passes through placing table and is connected with the rotation axis of rotating seat, and several circumferentially arranged bull's eye bearings are also installed between rotating seat and placing table.The rotating center of the rotating seat is provided with an upward protruding column, the outer periphery of the column is sleeved with a circular plate, and the outer periphery of the circular plate is provided with clamping connecting rods corresponding to the clamping jaw blocks, wherein a plurality of outward protruding long plate seats are arranged on the rotating seat, a sliding rail is arranged on each long plate seat and arranged along the radial direction of the rotating seat, the bottom of the clamping jaw block is provided with a sliding block matched with the sliding rail, a clamping cylinder is mounted on the rotating seat corresponding to each clamping jaw block, the piston rod of the clamping cylinder is hinged to the clamping connecting rod, and a linkage shaft rod is further hinged and connected between the clamping connecting rod and the sliding block at the bottom of the corresponding clamping jaw block. When the piston rod of any one clamping cylinder is extended, all the clamping jaw blocks on the rotating seat can be synchronously moved to approach the head for clamping and fixing. The inner side of the clamping jaw block is provided with a stepped limiting protruding edge, and the limiting protruding edges are sequentially arranged in the height direction. A plurality of guide rods are vertically arranged on the swing arm, and the upper part of each guide rod is provided with a guide ring. The welding wire and the gas pipeline are arranged in the guide ring.

[0005] The positive effect of the utility model lies in: the utility model discloses a 360 ° welding head welding cutting special machine, through the design of integration, cutting, welding and positioning function are integrated in one equipment, realize the integrated operation of head processing, reduce the labor intensity of staff, avoid the processing error caused by human factors simultaneously, improve production efficiency and processing precision significantly, reduce the complexity and time cost of manual operation. The position of the welding gun and the cutting gun can be flexibly adjusted, cooperating with the high-precision rotating seat and clamping jaw block system, which can ensure that the welding and cutting operations are uniformly and accurately performed on the head, thereby improving the processing quality and consistency of the head. The design of the clamping jaw block and the flange support frame can be adjusted according to different sizes of the head, so that the special machine can be applied to head processing of various specifications, enhancing the versatility and flexibility of the equipment. ACCREDITED DRAWINGS

[0006] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0007] Figure 2 It is the front view of the utility model;

[0008] Figure 3 It is Figure 2 The left view of;

[0009] Figure 4 It is Figure 2 The top view of;

[0010] Figure 5 It is the partial structure schematic diagram of the setting swing arm at the top of the pole;

[0011] Figure 6 It is the structure schematic diagram of the swing locking mechanism;

[0012] Figure 7is a structure schematic view of the welding gun mounted on the swing arm;

[0013] Figure 8 is a structure schematic view of the cutting gun mounted on the swing arm;

[0014] Figure 9 is Figure 8 view of another angle of the structure in the middle;

[0015] Figure 10 is Figure 9 enlarged view of the A-A sectional view of the structure in the middle;

[0016] Figure 11 is a structure schematic view of the rotating seat after removing the flange support frame;

[0017] Figure 12 is Figure 11 enlarged view of the B-B sectional view of the structure in the middle. DETAILED DESCRIPTION

[0018] The utility model discloses a 360 ° welding head welding cutting special machine, as shown in Figures 1-4 the bracket 1 is installed with the vertical setting riser 2, the top of riser 2 is installed with the swing arm 3 that can horizontally rotate, and the welding gun 4 and cutting gun 5 that can adjust position are installed at the end of swing arm 3 away from riser 2. Wherein cutting gun 5 can realize the cutting operation to the head workpiece, and welding gun 4 can realize the welding connection between the head workpiece and the flange workpiece, and the rotating swing arm 3 can avoid the hoisting movement of the workpiece, to avoid the interference of welding gun 4 and cutting gun 5 to the transfer of the workpiece. The welding gun 4 and cutting gun 5 can realize the position adjustment of themselves relative to swing arm 3 through the existing adjusting mechanism, to ensure that the corresponding position cutting and welding are realized to the workpiece, and the existing adjusting mechanism can be telescopic rod adjusting mechanism, turbine screw adjusting mechanism or other devices that can realize the movement action.

[0019] Welding gun 4 and cutting gun 5 are located at the both sides of swing arm 3 respectively, do not affect the installation, adjustment and operation of each other structure, and the upper side of the rotating shaft center of swing arm 3 is installed with the wire feeder 6, one side of riser 2 is installed with the cutting numerical control equipment 7, the welding wire of wire feeder 6 enters into welding gun 4, and cutting numerical control equipment 7 is connected with cutting gun 5 through the gas path pipeline, can realize the control adjustment of each parameter when cutting. The corresponding welding and cutting functions are realized through the above structure respectively, wherein wire feeder 6 is arranged on the rotating shaft center of swing arm 3, and cutting numerical control equipment 7 is fixed on riser 2, and the lines and pipelines connected on it are not affected by the rotation of swing arm 3.

[0020] The bottom position corresponding to the welding gun 4 and the cutting gun 5 is provided with a placing table 8 on the frame 1, the rotating seat 9 capable of rotating horizontally is installed on the placing table 8, the rotating seat 9 is used for positioning and placing the workpiece to be processed, the workpiece on the rotating seat 9 is driven to rotate synchronously, so that the welding gun 4 and the cutting gun 5 located on the upper side can realize the circumferential cutting or circumferential welding of the workpiece.

[0021] In order to realize the positioning and assembly of the workpiece, the flange support frame 10 matched with the head is arranged on the rotating seat 9, and a plurality of clamping jaw blocks 11 arranged in the circumferences are also installed on the rotating seat 9, each clamping jaw block 11 can move synchronously along the diameter direction of the rotating seat 9, the clamping jaw block 11 moves close to the center position of the rotating seat 9, so that the head workpiece can be clamped and fixed on the flange support frame 10, and the coaxial centering and clamping positioning of the head workpiece and the flange workpiece is realized. The power supply and the distribution box are installed on the frame 1, and the corresponding electric energy can be provided for the movement or operation of each mechanism on the device.

[0022] The rotation of the swing arm 3 relative to the vertical rod 2 can adopt a non-powered mechanism, and the rotation of the swing arm 3 can be realized by manually assisting to push while hoisting the workpiece. Figure 5 As shown in the figure, the top of the vertical rod 2 is provided with a vertical shaft 12, the end of the swing arm 3 is provided with a shaft sleeve 13 matched with the vertical shaft 12, and a limiting bearing is installed between the shaft sleeve 13 and the vertical shaft 12, so that the swing arm 3 can drive the welding gun 4 and the cutting gun 5 to move out of the hoisting space of the workpiece by manual pushing.

[0023] In order to ensure the cutting and welding quality of the workpiece, the welding gun 4 and the cutting gun 5 need to be kept at a relatively fixed position when the workpiece rotates, so as to realize the cutting and welding of the circumferential position on the workpiece, and further ensure the cutting and welding quality of the workpiece. In order to realize the above purpose, the swing locking mechanism is also arranged on the vertical rod 2, the swing locking mechanism can fix the swing arm 3 on the vertical rod 2, and limit the horizontal rotation of the swing arm 3 relative to the vertical rod 2.

[0024] As shown in the figure, Figure 6As shown, the swing locking mechanism includes a guide sleeve 14 arranged on one side of the vertical rod 2, the guide sleeve 14 is vertically arranged, a vertical shaft 15 capable of vertical lifting is fitted and installed in the guide sleeve 14, a limiting plug 16 is installed at the upper end of the vertical shaft 15 extending out of the guide sleeve 14, the limiting plug 16 can be in contact with the bottom of the swing arm 3 when moving upward, and the limiting between them is formed by the friction between them. The lower end of the vertical shaft 15 is hingedly connected with a brake handle 17, and the lower part of the guide sleeve 14 is hingedly connected with an H-shaped frame 18, the H-shaped frame 18 is hingedly connected with the brake handle 17, rotating the brake handle 17 can make the vertical shaft 12 move upward, so that the limiting plug 16 is in contact with the swing arm 3 to limit the swing of the swing arm 3. When it is needed to release the rotation locking of the swing arm 3, the brake handle 17 is rotated in the opposite direction, so that the limiting plug 16 moves downward and separates from the swing arm 3. When the workpiece is machined, the swing arm 3 is in a limiting state, and the welding gun 4 and the cutting gun 5 are in a fixed position for operation. When the workpiece needs to be lifted, the rotation limiting of the swing arm 3 is released, and the swing arm 3 is pushed to move away from the upper side of the workpiece, and the subsequent workpiece can be transferred by the crane or other lifting tools.

[0025] Further, in order to realize the position adjustment of the welding gun 4 relative to the swing arm 3, and to ensure accurate welding of the welding gun 4 at the specified position of the workpiece, as shown in the drawings, Figure 7 As shown, a cross slide 19 is installed on one side of the swing arm 3, a first locking sleeve 22 is arranged on the slide plate of the cross slide 19, the first locking sleeve 22 is provided with a welding gun clamp 21 through a first cross shaft 20, and the welding gun 4 is fixedly arranged in the welding gun clamp 21. The cross slide 19 can realize the position adjustment of the welding gun 4 in the horizontal direction and the vertical direction, the first cross shaft 20 is arranged between the first locking sleeve 22 and the welding gun clamp 21, and the first cross shaft 20 is fastened and clamped by bolts arranged on the first locking sleeve 22 and the welding gun clamp 21. By loosening the bolts, the welding gun 4 can be adjusted in angle in two perpendicular axial directions, and by tightening the bolts, the first locking sleeve 22 and the welding gun clamp 21 can be positioned and connected. Through the above structure, the multi-axial position adjustment of the welding gun 4 relative to the swing arm 3 can be realized.

[0026] The cutting gun 5 also needs to be adjusted in position relative to the swing arm 3 in order to realize accurate cutting of the workpiece. In order to achieve the above purpose, as shown in the drawings, Figures 8-10 As shown, a ball screw slide 23 is installed on one side of the swing arm 3, a second locking sleeve 24 is installed on the slide plate of the ball screw slide 23, and a vertical moving sleeve 26 is connected to the second locking sleeve 24 through a second cross shaft 25. The cutting gun 5 is arranged in the vertical moving sleeve 26, wherein a vertical moving rack 27 is installed on the cutting gun 5, and an adjustment handle 28 is installed on the vertical moving sleeve 26 and can rotate. One end of the adjustment handle 28 extending into the vertical moving sleeve 26 is provided with a gear 29 engaged with the vertical moving rack 27. Rotating the adjustment handle 28 can make the cutting gun 5 vertically lift relative to the vertical moving sleeve 26.

[0027] The ball screw sliding table 23 in the above structure can realize horizontal movement adjustment of the cutting torch 5, the rotating adjustment handle 28 can realize vertical movement adjustment of the cutting torch 5, the second cross shaft 25 between the second locking sleeve 24 and the vertical moving sleeve 26, similar to the structure of the first cross shaft 20 between the first locking sleeve 22 and the welding torch clamp 21, can realize rotating angle adjustment of the cutting torch 5 in the vertical moving sleeve 26 in two perpendicular axial directions, and can also realize multi-axial position adjustment of the cutting torch 5 relative to the swing arm 3.

[0028] In order to realize the horizontal rotation of the rotating seat 9 relative to the placing table 8, a rotating motor 30 is installed at the bottom of the placing table 8, the output shaft of the rotating motor 30 penetrates the placing table 8 upward and is connected with the rotating shaft of the rotating seat 9, and in order to increase the support of the rotating seat 9 around the position, a plurality of circumferentially arranged bull's eye bearings 31 are further installed between the rotating seat 9 and the placing table 8, the arrangement of the bull's eye bearings 31 not only can play a corresponding supporting role, but also can effectively reduce the friction between each other during rotation, and improve the service life of the device.

[0029] Further, in order to realize the synchronous movement and clamping action of each clamping jaw block 11 on the rotating seat 9, as shown in Figure 11 and Figure 12 , an upward protruding column 32 is arranged at the rotating center of the rotating seat 9, a circular ring plate 33 is sleeved on the outer periphery of the column 32, and a clamping connecting rod 34 corresponding to each clamping jaw block 11 is arranged on the outer periphery of the circular ring plate 33. A plurality of outward protruding long plate seats 35 are arranged on the rotating seat 9, each long plate seat 35 is provided with a sliding rail 36 arranged along the radial direction of the rotating seat 9, and the bottom of the clamping jaw block 11 is provided with a sliding block 37 matched with the sliding rail 36.

[0030] A clamping cylinder 38 is arranged on the rotating seat 9 corresponding to each clamping jaw block 11, the piston rod of the clamping cylinder 38 is hinged to the clamping connecting rod 34, and a linkage shaft 39 is further hinged and connected between the clamping connecting rod 34 and the sliding block 37 at the bottom of the corresponding clamping jaw block 11. When the piston rod of any one clamping cylinder 38 is extended, it can drive the clamping connecting rod 34 and the circular ring plate 33 to rotate. Since all the clamping connecting rods 34 are circumferentially arranged on the circular ring plate 33, the rotation of any one clamping connecting rod 34 will drive all the clamping connecting rods 34 to rotate synchronously. When the clamping connecting rod 34 rotates, it will pull the linkage shaft 39 to move, and the sliding block 37 and the clamping jaw block 11 thereon will move along the length direction of the sliding rail 36 to approach, thereby forming clamping and fixing of the head. When it is needed to release the clamping and fixing of the head workpiece, only the piston rod of the clamping cylinder 38 is retracted to drive the clamping connecting rod 34 to push the linkage shaft 39 to move away from the sliding block 37 and the clamping jaw block 11 thereon.

[0031] In order to not hinder the rotation of the clamping link 34, the flange support frame 10 is located at the upper side of the circular plate 33 and is coaxially arranged with the circular plate 33, the bottom of the flange support frame 10 can be fixedly connected with the rotating seat 9 through the circumferentially arranged vertical rods, and the clamping link 34 is located between adjacent vertical rods, and the maximum angle rotating distance of the clamping link 34 is left between the adjacent vertical rods, so that the synchronous movement driving of the clamping jaw block 11 is not interfered by the position of the flange support frame 10.

[0032] In order to realize the gas supply of the clamping cylinder 38, the gas source pipeline can be installed in the rotating shaft of the rotating seat 9 through the rotary joint, and is led out upward through the stand column 32 and is communicated with each clamping cylinder 38 to realize the gas supply function, and the rotation of the rotating shaft will not affect the normal gas supply of the pipeline.

[0033] When the clamping jaw block 11 moves close to clamp and fix the head workpiece, the clamping jaw block 11 only moves in the horizontal direction, in order to adapt the clamping jaw block 11 to clamp different height types of head workpieces, the inner side of the clamping jaw block 11 is provided with stepped limiting protrusions, the limiting protrusions are sequentially arranged in the height direction, different height limiting protrusions can be selected according to the actual height position of the bottom of the head workpiece, the clamping jaw block 11 moves close to the head workpiece to provide bottom support, and different height types of head workpieces can be clamped and fixed.

[0034] Further, in order that the welding wire and the gas pipeline do not interfere with other components of the device during the rotation of the swing arm 3, a plurality of guide rods 40 are arranged vertically on the swing arm 3, the upper portions of the guide rods 40 are each provided with a guide ring 41, and the welding wire and the gas pipeline are respectively located in the guide rings 41.

[0035] The swing locking mechanism, the cross slide 19, the ball screw slide 23 and other action structures arranged on the 360° welding head welding and cutting special machine can make the position adjustment of the welding gun 4 and the cutting gun 5 simple and fast, the application of the rotating motor 30 can realize the automatic rotation of the head, the operation process is simplified, and the working efficiency is improved. Through accurate control of the welding and cutting process, material waste and energy consumption are reduced, noise and pollution generated during equipment operation are effectively controlled, and the green production concept of modern industry is met.

[0036] The 360° welding head welding and cutting special machine provided by the utility model not only remarkably improves the production efficiency and machining quality of the head, reduces the labor intensity, but also enhances the adaptability and operation simplicity of the equipment, and brings remarkable technical progress and economic benefits to the head machining industry.

[0037] The technical scheme of the utility model is not limited to the scope of the embodiments described in the utility model. The technical content not described in the utility model is well-known technology.

Claims

1. A 360° welding head welding cutting special machine, characterized in that: The utility model provides a welding and cutting machine, including organic frame (1), install vertical setting stand (2) on frame (1), the top of stand (2) installs the horizontal rotation swing arm (3), swing arm (3) away from the one end of stand (2) installs the position adjustable welding torch (4) and cutting torch (5), and welding torch (4) and cutting torch (5) are located swing arm (3) two sides position respectively, and the upper side of swing arm (3) rotation axis installs wire feeder (6), and the one side of stand (2) installs cutting numerical control equipment (7), and welding wire of wire feeder (6) enters welding torch (4), and cutting numerical control equipment (7) is connected with cutting torch (5) through gas path pipeline, and the bottom position corresponding to welding torch (4) and cutting torch (5) is equipped with placing table (8) on frame (1), swing arm (3) is equipped with the flange support frame (10) of cooperation with the end closure on the rotating seat (9) of horizontal rotation, the rotating seat (9) is also equipped with the circumference arrangement of a plurality of jaw blocks (11), each jaw block (11) can move along the diameter direction synchronous of rotating seat (9), and when jaw block (11) moves close to the center position of rotating seat (9), can the end closure workpiece clamping fixed on flange support frame (10).

2. A 360° welded head welding cutting special machine according to claim 1, characterized in that: The top of stand (2) is provided with a vertical shaft (12), and the end of swing arm (3) is provided with a shaft sleeve (13) matched with vertical shaft (12), a limit bearing is installed between shaft sleeve (13) and vertical shaft (12), and a swing locking mechanism is further arranged on stand (2), the swing locking mechanism comprises a guide sleeve (14) arranged on one side of stand (2), a vertical shaft (15) capable of vertically ascending is matched and installed in guide sleeve (14), a limit plug (16) is installed at the upper end of vertical shaft (15) extending out of guide sleeve (14), a brake handle (17) is hingedly connected to the lower end of vertical shaft (15) extending out of guide sleeve (14), an H-shaped frame (18) is hingedly installed at the lower position of guide sleeve (14), the H-shaped frame (18) is hingedly connected with brake handle (17), and rotating brake handle (17) can make vertical shaft (12) move upwards, so that limit plug (16) contacts swing arm (3) to limit the swing of swing arm (3).

3. A 360° welded head welding cutting special machine according to claim 1, characterized in that: A cross slide (19) is installed on one side of swing arm (3), a first locking sleeve (22) is arranged on the slide plate of cross slide (19), a welding torch clamp (21) is installed on the first locking sleeve (22) through a first cross shaft (20), and a welding torch (4) is fixedly arranged in the welding torch clamp (21), and the welding torch (4) can be adjusted in rotation relative to swing arm (3).

4. A 360° welded head welding cutting special machine according to claim 1, characterized in that: One side of the swing arm (3) is provided with a ball screw sliding table (23), a sliding plate of the ball screw sliding table (23) is provided with a second locking sleeve (24), the second locking sleeve (24) is connected with a vertical moving sleeve (26) through a second cross shaft (25), the cutting torch (5) is matched and arranged in the vertical moving sleeve (26), wherein the cutting torch (5) is provided with a vertical moving rack (27), the vertical moving sleeve (26) is provided with a rotatable adjusting handle (28), one end of the adjusting handle (28) extending into the vertical moving sleeve (26) is provided with a gear (29) engaged with the vertical moving rack (27), and rotating the adjusting handle (28) can make the cutting torch (5) vertically ascend and descend relative to the vertical moving sleeve (26).

5. A 360° welded head welding cutting special machine according to claim 1, characterized in that: The bottom of the placing table (8) is provided with a rotating motor (30), an output shaft of the rotating motor (30) extends out of the placing table (8) and is connected with a rotating shaft of the rotating seat (9), and a plurality of circumferentially arranged eye shafts (31) are further arranged between the rotating seat (9) and the placing table (8).

6. A 360° welded head welding cutting special machine according to claim 1, characterized in that: The rotating center of the rotating seat (9) is provided with an upwardly protruding column (32), the column (32) is provided with a circular plate (33) outside, the circular plate (33) is provided with a clamping connecting rod (34) corresponding to each clamping jaw block (11), wherein the rotating seat (9) is provided with a plurality of outwardly protruding long plate seats (35), each long plate seat (35) is provided with a sliding rail (36), the sliding rail (36) is arranged along the radius direction of the rotating seat (9), the bottom of the clamping jaw block (11) is provided with a sliding block (37) matched with the sliding rail (36), a clamping cylinder (38) is arranged on the rotating seat (9) corresponding to each clamping jaw block (11), a piston rod of the clamping cylinder (38) is hinged to the clamping connecting rod (34), the clamping connecting rod (34) and the sliding block (37) at the bottom of the corresponding clamping jaw block (11) are further hingedly connected with a linkage shaft (39), when the piston rod of any one clamping cylinder (38) extends, all clamping jaw blocks (11) on the rotating seat (9) can be synchronously moved to close to the sealing head for clamping and fixing.

7. A 360° welded head welding cutting special machine according to claim 1, characterized in that: The inner side of the clamping jaw block (11) is provided with a stepped limiting protrusion, and the limiting protrusions are sequentially arranged in the height direction.

8. A 360° welded head welding cutting special machine according to claim 1, characterized in that: A plurality of guide rods (40) are arranged vertically on the swing arm (3), the upper portions of the guide rods (40) are provided with guide rings (41), and the welding wire and the gas pipeline are arranged in the guide rings (41).

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