CN212398597U

CN212398597U - Automatic circumference welding device

Info

Publication number: CN212398597U
Application number: CN202020951928.9U
Authority: CN
Inventors: 殷凯; 王攀; 刘涛; 肖峰
Original assignee: Zhuzhou Riwang Precision Work Co ltd
Current assignee: Zhuzhou Riwang Precision Work Co ltd
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-01-26
Anticipated expiration: 2030-05-29

Abstract

The utility model provides a circumference automatic welding device, which comprises a circumference automatic welding device main body, wherein the inside of the circumference automatic welding device main body is rotatably connected with a fixed rod, the upper part of the side end surface of the circumference automatic welding device main body is rotationally connected with a handle, the periphery of the side end surface of the circumference automatic welding device main body is rotationally connected with a driving platform, the driving platform comprises a driving motor, a rotating bearing, a driving platform main body, a driving gear and a fixing bolt, the rotating bearing is fixedly connected to the center of the upper end face of the driving platform main body, the driving motor is fixedly arranged on one side of the edge of the upper end face of the driving platform main body through a fixing bolt, the driving gear is rotatably connected to the lower end face of the driving motor, the utility model discloses a welding seam quality and pleasing to the eye problem when the circumference welding has been solved to the device, and install simple and practical, improve welding efficiency greatly.

Description

Automatic circumference welding device

Technical Field

The utility model relates to a welding tool equipment field specifically is an automatic device that welds of circumference.

Background

The aerial platform is gradually popularized in work and life of people, and the difficulty of welding parts of a scissor fork in the aerial platform is high. The welding process relates to arc welding of a workpiece structure part and repeated welding, and the conventional process technology adopts a CO2 gas shielded welding process to manually weld workpieces one by operators. Due to the adoption of the manual welding method of the staff, a plurality of disadvantages are generated: firstly, because the welding seam size and the welding seam quality are not uniform and are greatly influenced by personal skills of staff due to the fact that the welding seam size and the welding seam quality are connected around the inner circle and the outer periphery of a workpiece in a full welding mode; secondly, as the arc welding is adopted, the arc at the position is larger, and the diameter of the inner hole is phi 52, the manual welding is caused by workers, the welding line cannot be welded in place at one time, and secondary arc starting welding is required, so that the attractiveness of the welding line is influenced; thirdly, the labor intensity is troubled, and because the welding is carried out at the position, the welding belongs to a heavy spot welding part in the product structure and needs full welding; and the number is great, and the repeated reciprocating motion is more, and work is boring, has caused staff intensity great with present welding mode, easily tired.

The existing circumferential welding device has the following disadvantages in use: one, the equipment structure is too complicated to current circumference welding, the device is comparatively heavy to be difficult to remove, and the suitability is low, two, current circumference welding device is fixed to the butt welding rifle centre gripping, anchor clamps angle regulation distance is too single, make welder be difficult to reach suitable welding position, influence the welding seam quality and pleasing to the eye, three, current circumference welding device requires to be higher to the welding work piece when fixed, often does not have suitable fixed position, and then lead to welding effect not good, also there is certain safe risk simultaneously.

Disclosure of Invention

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an automatic device that welds of circumference has solved the above-mentioned problem that most of present exhaust pollution treatment equipment exist and filter impurity service ability not enough, simultaneously, exist in the aspect of the control is used and use convenient phenomenon inadequately, in the collection to exhaust gas impurity with to the gas after the filtration aspect of discharging, there is the problem that the service ability is not enough, in emergent aspect, the regulation and control service ability is not enough, brought the problem of the complexity that wastes time and energy and increased the operation.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides an automatic device that welds of circumference, includes the automatic device main part that welds of circumference, the inside of the automatic device main part that welds of circumference rotates and is connected with the dead lever, the side end face upper portion of the automatic device main part that welds of circumference rotates and is connected with drive platform, drive platform includes driving motor, rolling bearing, drive platform main part, driving gear and fixing bolt, rolling bearing fixed connection is in the up end center of drive platform main part, driving motor passes through fixing bolt fixed mounting in drive platform main part up end edge one side, the driving gear rotates and connects the lower terminal surface at driving motor, drive platform up end one side fixed connection has the welder fixed tube, the fixed surface clamp of welder fixed tube holds welder clamping device, welder clamping device includes first fixation clamp, the fixed end of welder clamping device is connected with the fixed pole, the automatic device main part that welds of circumference, the side end face upper, The automatic circumference welding device comprises a rotary connecting rod, a second fixing clamp, a vertical connecting column, a third fixing clamp, a clamping gasket, a welding gun fixing clamp, a horizontal connecting rod and a butterfly nut, wherein the first fixing clamp is fixedly connected to one end of the rotary connecting rod, the second fixing clamp is fixedly connected to the other end of the rotary connecting rod, the vertical connecting column is fixedly clamped in the second fixing clamp, the third fixing clamp is fixedly connected to the lower end face of the vertical connecting column, the horizontal connecting rod is fixedly clamped in the third fixing clamp, the welding gun fixing clamp is fixedly connected to one end of the horizontal connecting rod, a driven gear is fixedly connected to the side end face of the automatic circumference welding device body and is located below a driving platform, a positioning guide device is fixedly connected to the lower end face of the automatic circumference welding device body, and an installation limiting part is rotatably connected to the interior of the positioning guide device, the installation locating part comprises a transmission column, a first locating part, a second locating part, a limiting pin and a fixed shaft, the first locating part and the second locating part are rotatably connected to the side end face of the fixed shaft, the limiting pin is fixedly connected to the lower end faces of the first locating part and the second locating part, and the transmission column is attached to the upper end faces of the first locating part and the second locating part.

Preferably, the first fixing clamp and the welding gun fixing clamp are fixedly clamped through butterfly nuts, and the second fixing clamp and the welding gun fixing clamp are fixedly clamped through fixing bolts.

Preferably, the rotary bearing is rotatably connected with the circumferential automatic welding device main body, and the rotary bearing is concentric with the circumferential automatic welding device main body and the driven gear.

Preferably, the driven gear is engaged with the driving gear.

Preferably, the outer surface of the fixing rod is provided with external threads, and the inner wall of the circumferential automatic welding device main body is provided with internal threads matched with the fixing rod.

Preferably, a groove matched with the first limiting part and the second limiting part is formed in the side end face of the positioning and guiding device.

Preferably, the transmission column is fixedly connected with the bottom of the fixing rod.

Preferably, the middle part of the rotating connecting rod is provided with a rotating shaft, and the rotating shaft is fixedly locked through a fixing bolt.

Preferably, the clamping gasket is fixedly installed on the inner wall of the welding gun fixing clamp, and anti-skid grains are arranged on the surface of the clamping gasket.

Preferably, when in use, a workpiece to be welded is sleeved in the positioning guide device, the positioning guide device is moved and vertically inserted into a hole to be welded through the handle, the fixed rod is rotated to enable the fixed rod to descend so as to drive the transmission column to press downwards, the first limiting part and the second limiting part are unfolded under the action of pressure to fix the device, limiting feet are arranged on the lower end faces of the first limiting part and the second limiting part and used for clamping a groove or a specific corner, the device is fixed in an auxiliary manner, after the device is fixed, a welding gun is arranged in the welding gun fixing clamp, the welding gun is fixed through screwing the butterfly nut, meanwhile, the welding gun is attached to a welding position through adjusting the rotating connecting rod, the vertical connecting rod and the horizontal connecting rod to reach the optimal welding position, and after the position is adjusted, the welding gun clamping device is fixed and locked through the butterfly nut and the fixing bolt, and then the welding gun and the driving motor are opened, the driving gear is driven by the driving motor to rotate, the driving gear is meshed with the driven gear, so that the driving platform main body is driven to rotate circumferentially around the circumferential automatic welding device main body, meanwhile, the welding gun clamping device is fixed on one side of the upper end face of the driving platform through the welding gun fixing pipe, and then the welding gun clamping device drives the welding gun to weld the workpiece circumferentially.

(III) advantageous effects

The utility model provides an automatic device that welds of circumference possesses following beneficial effect:

1. the device is provided with a driving platform, one side of the edge of the upper end face of a main body of the driving platform is fixedly connected with a driving motor, the driving motor adopts a high-precision servo motor, the stable operation of the motor is ensured, the driving gear is controlled, the driving gear and a driven gear are meshed, the driving platform main body is driven to rotate simultaneously when the driving gear rotates, the main body of the automatic circumferential welding device of the rolling bearing and the driven gear are concentric, and the rolling bearing is fixedly connected with the center of the main body of the driving platform, so that a welding gun clamping device drives a welding gun to perform circumferential welding, the welding quality is effectively improved, secondary welding is avoided when a welding seam is formed once, the welding seam is more attractive, the device is simple in structure, easy to operate and popularize, the device is driven by the driving motor, the fatigue of repeated labor of an, meanwhile, a handle is arranged on the upper portion of the side end face of the circumferential automatic welding device main body, and the device can be lifted and moved through the handle, so that the problems that an existing circumferential welding equipment structure is too complex, the device is heavy and difficult to move, and the applicability is low are solved.

2. The device is provided with a welding gun clamping device, the welding gun clamping device is fixedly clamped on the outer surface of a welding gun fixing pipe through a first fixing clamp, the first fixing clamp is locked through a butterfly nut, the welding gun fixing clamp can be vertically rotated to a certain degree and controlled in the horizontal direction through the first fixing clamp, a rotating shaft is arranged in the middle of a rotating connecting rod, the welding gun fixing clamp can be horizontally adjusted under the action of the rotating shaft, a vertical connecting column and a horizontal connecting rod are respectively and fixedly clamped in a second fixing clamp and a third fixing clamp, the position and the angle of the welding gun fixing clamp can be adjusted by controlling the clamping length or the clamping angle, the adjustable range of the welding gun fixing clamp is greatly improved through the mutual combination of various adjusting modes, the welding gun fixing clamp is improved, the welding gun fixing clamp is always in the optimal welding position, and the welding seam quality is further improved, and be equipped with the centre gripping gasket at the inner wall of welder fixation clamp, centre gripping gasket surface is equipped with anti-skidding line, the fixed effect of effectual improvement welder fixation clamp butt welder, simultaneously because first fixation clamp and welder fixation clamp use frequency is higher, consequently first fixation clamp and welder fixation clamp adopt butterfly nut to lock fixedly, the person of facilitating the use is to the operation and the use of device, improve the convenient performance of device, and then solved current circumference and welded the device and fixed being in the butt welder centre gripping, anchor clamps angle regulation distance is too single, make welder be difficult to reach suitable welding position, influence welding seam quality and pleasing to the eye problem.

3. The device is provided with an installation limiting part and a positioning guide device, the positioning guide device is arranged in a hole position to be welded without other special fixed positions, a first limiting part and a second limiting part are rotatably connected through a fixed shaft, the fixed shaft is connected inside the positioning guide device in a penetrating way, a groove matched with the first limiting part and the second limiting part is formed in the side end face of the positioning guide device, when the fixed shaft is rotated, the fixed shaft drives a transmission column to be pressed downwards under the action of screw threads, the first limiting part and the second limiting part are unfolded under the action of pressure and extend out from the side end face of the positioning guide device and are extruded with a welding hole phase, the device is fixed through the pressure, limiting feet are arranged on the lower end faces of the first limiting part and the second limiting part, the limiting feet are clamped to structures such as the groove or a corner angle, the clamping effect is improved under the action of the transmission column, and the limitation of, and then solved when current circumference welds the device and fixes, it is higher to the welding work piece requirement, often does not have suitable fixed position, and then leads to welding effect not good, also has the problem of certain safety risk simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the device body of the present invention;

FIG. 2 is a schematic structural view of a welding gun holding device of the device body of the present invention;

FIG. 3 is a schematic view of the structure of the positioning member for mounting the device body according to the present invention;

fig. 4 is a schematic view of the planar structure of the driving platform of the device body of the present invention.

In the figure: 1 dead lever, 2 handles, 3 welder clamping device, 4 fixed pipes of welder, 5 circumference automatic weld device main parts, 6 installation locating part, 7 location guider, 8 driven gear, 9 drive platform, 10 first fixation clamps, 11 rotation connecting rods, 12 second fixation clamps, 13 vertical connecting posts, 14 third fixation clamps, 15 centre gripping gasket, 16 welder fixation clamps, 17 horizontal connecting rod, 18 butterfly nut, 19 transmission post, 20 first locating part, 21 second locating part, 22 spacing foot, 23 fixed axles, 24 driving motor, 25 rolling bearing, 26 drive platform main parts, 27 driving gears, 28 fixing bolt.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The embodiment of the utility model provides a circumference automatic welding device, circumference automatic welding device main part 5, the inside rotation of circumference automatic welding device main part 5 is connected with dead lever 1, the side end face upper portion rotation of circumference automatic welding device main part 5 is connected with handle 2, the side end face periphery rotation of circumference automatic welding device main part 5 is connected with drive platform 9, drive platform 9 includes driving motor 24, rolling bearing 25, drive platform main part 26, driving gear 27 and fixing bolt 28, rolling bearing 25 is fixedly connected in the up end center of drive platform main part 26, driving motor 24 is fixedly installed in drive platform main part 26 up end edge one side through fixing bolt 28, driving gear 27 rotates and is connected in the lower terminal surface of driving motor 24, driving platform 9 up end one side fixedly connected with welder fixed tube 4, the fixed surface of welder fixed tube 4 is held welder clamping device 3, the welding gun clamping device 3 comprises a first fixing clamp 10, a rotating connecting rod 11, a second fixing clamp 12, a vertical connecting column 13, a third fixing clamp 14, a clamping gasket 15, a welding gun fixing clamp 16, a horizontal connecting rod 17 and a butterfly nut 18, wherein the first fixing clamp 10 is fixedly connected to one end of the rotating connecting rod 11, the second fixing clamp 12 is fixedly connected to the other end of the rotating connecting rod 11, the vertical connecting column 13 is fixedly clamped inside the second fixing clamp 12, the third fixing clamp 14 is fixedly connected to the lower end face of the vertical connecting column 13, the horizontal connecting rod 17 is fixedly clamped inside the third fixing clamp 14, the welding gun fixing clamp 16 is fixedly connected to one end of the horizontal connecting rod 17, a driven gear 8 is fixedly connected to the side end face of the circumferential automatic welding device body 5, the driven gear 8 is located below the driving platform 9, and a positioning guide device 7 is fixedly connected to the lower end face of the circumferential automatic welding device body 5, the positioning guide device 7 is rotatably connected with an installation limiting member 6 inside, the installation limiting member 6 includes a transmission column 19, a first limiting member 20, a second limiting member 21, a limiting pin 22 and a fixing shaft 23, the first limiting member 20 and the second limiting member 21 are rotatably connected to the side end surface of the fixing shaft 23, the limiting pin 22 is fixedly connected to the lower end surfaces of the first limiting member 20 and the second limiting member 21, and the transmission column 19 is attached to the upper end surfaces of the first limiting member 20 and the second limiting member 21.

The first fixing clamp 10 and the welding gun fixing clamp 16 are fixedly clamped through a butterfly nut 18, the second fixing clamp 12 and the welding gun fixing clamp 16 are fixedly clamped through a fixing bolt 28, a rotary bearing 25 is rotatably connected with the automatic circumference welding device main body 5, the rotary bearing 25 is concentric with the automatic circumference welding device main body 5 and the driven gear 8, the driven gear 8 is meshed with a driving gear 27, the outer surface of the fixing rod 1 is provided with an external thread, the inner wall of the automatic circumference welding device main body 5 is provided with an internal thread matched with the fixing rod 1, the side end surface of the positioning guide device 7 is provided with a groove matched with a first limiting part 20 and a second limiting part 21, a transmission column 19 is fixedly connected with the bottom of the fixing rod 1, the middle part of the rotary connecting rod 11 is provided with a rotary shaft, the rotary shaft is fixedly locked through the fixing bolt 28, and a clamping gasket 15 is fixedly arranged on, and the surface of the clamping gasket 15 is provided with anti-skid lines, when in use, a workpiece to be welded is sleeved in the positioning guide device 7, the positioning guide device 7 is moved and vertically inserted into a hole to be welded through the handle 2, the fixing rod 1 is rotated to enable the fixing rod 1 to descend to drive the transmission column 19 to press downwards, the first limiting part 20 and the second limiting part 21 are unfolded under the action of pressure to fix the device, the lower end surfaces of the first limiting part 20 and the second limiting part 21 are provided with limiting feet 22, the limiting feet 22 are used for clamping grooves or specific corners, the device is subjected to auxiliary fixing, after the device is fixed, a welding gun is arranged in the welding gun fixing clamp 16, the welding gun is fixed through screwing the butterfly nut 18, and meanwhile, the welding gun is enabled to be attached to a welding position through adjusting the rotating connecting rod 11, the vertical connecting rod 13 and the horizontal connecting rod 17 to reach the optimal welding position, after the position adjustment is completed, the position of the welding gun clamping device 3 is fixed and locked through the butterfly nut 18 and the fixing bolt 28, then the welding gun and the driving motor 24 are opened, the driving gear 27 rotates under the driving of the driving motor 24, the driving gear 27 is meshed with the driven gear 8, the driving platform main body 26 is further driven to rotate circumferentially around the automatic circumference welding device main body 5, meanwhile, the welding gun clamping device 3 is fixed on one side of the upper end face of the driving platform 9 through the welding gun fixing pipe 4, and then the welding gun clamping device 3 drives the welding gun to perform circumference welding on a workpiece.

In summary, firstly, the device is provided with the driving platform 9, one side of the edge of the upper end face of the driving platform main body 26 is fixedly connected with the driving motor 24, the driving motor 24 adopts a high-precision servo motor, the stable operation of the motor is ensured, the driving gear 27 is controlled, the driving gear 27 and the driven gear 8 are meshed, the driving gear 27 rotates and simultaneously drives the driving platform main body 26 to rotate, because the rotary bearing 25 and the circular automatic welding device main body 5 and the driven gear 8 are concentric, and the rotary bearing 25 is fixedly connected with the center of the driving platform main body 26, the welding gun clamping device 3 drives the welding gun to perform circular welding, the welding quality is effectively improved, secondary welding is avoided by one-step forming of the welding line, the welding line is more attractive, the device is simple in structure and easy to operate and popularize, and the device is driven, avoid operator's the tired sense of repeated work, also can improve welding efficiency greatly, be equipped with handle 2 on the side end face upper portion of the automatic device main part that welds of circumference 5 simultaneously, can mention the device through handle 2 and remove to it is too complicated to have solved current circumference and has welded equipment structure, and the device is comparatively heavy to be difficult to remove, and the problem that the suitability is low.

The device is provided with a welding gun clamping device 3, the welding gun clamping device 3 is fixedly clamped on the outer surface of a welding gun fixing pipe 4 through a first fixing clamp 10, the first fixing clamp 10 is locked through a butterfly nut 18, the welding gun fixing clamp 16 can be vertically rotated to a certain degree and controlled in the horizontal direction through the first fixing clamp 10, a rotating shaft is arranged in the middle of a rotating connecting rod 11, the welding gun fixing clamp 16 can be adjusted in the horizontal direction under the action of the rotating shaft, a vertical connecting column 13 and a horizontal connecting rod 17 are respectively fixedly clamped in a second fixing clamp 12 and a third fixing clamp 14, the position and the angle of the welding gun fixing clamp 16 can be adjusted by controlling the clamping length or the clamping angle, the adjustable range of the welding gun fixing clamp 16 is greatly improved through the mutual combination of multiple adjusting modes, the welding gun fixing clamp 16 is improved, and the welding gun fixing clamp 16 is always in the best welding position, the improved welding gun fixing clamp is beneficial to further improving the quality of a welding seam, the clamping gasket 15 is arranged on the inner wall of the welding gun fixing clamp 16, anti-skid lines are arranged on the surface of the clamping gasket 15, the fixing effect of the welding gun fixing clamp 16 on the welding gun is effectively improved, and meanwhile, the first fixing clamp 10 and the welding gun fixing clamp 16 are used frequently, so that the first fixing clamp 10 and the welding gun fixing clamp 16 are locked and fixed by the butterfly nut 18, the operation and the use of the device are facilitated for a user, the convenience performance of the device is improved, and the problems that the existing circumferential welding device is used for clamping and fixing the welding gun, the angle adjusting distance of the clamp is too single, the welding gun cannot reach a proper welding position easily, and the quality and the.

And through being equipped with and installing the locating part 6 and locating the guider 7, the locating guider 7 is placed in the hole site needing to weld, do not need other special fixed positions, the first locating part 20 and the second locating part 21 are connected through the rotation of the fixed axle 23, and the fixed axle 23 is through-connected in the inside of locating guider 7, the side end of the locating guider 7 is equipped with the trough adapted with first locating part 20 and second locating part 21, when rotating the dead lever 1, under the screw action, the dead lever 1 drives the drive column 19 to push down, make the first locating part 20 and the second locating part 21 unfold under the pressure action, and stretch out from the side end of locating guider 7, and extrude with the welding hole site, fix the apparatus through the pressure, and there are spacing feet 22 on the lower end of the first locating part 20 and the second locating part 21, spacing feet 22 are blocked to structures such as trough or arris angle, and improve the joint effect under the effect of transmission post 19, further reduce the restriction of device to fixed condition, and then solved current circumference and welded the device and fixed the time the requirement to the welding work piece higher, often do not have suitable fixed position, and then lead to welding effect not good, also have the problem of certain safety risk simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circumference automatic weld device, includes circumference automatic weld device main part (5), its characterized in that: the inner part of the circumference automatic welding device main body (5) is rotatably connected with a fixing rod (1), the upper part of the side end face of the circumference automatic welding device main body (5) is rotatably connected with a handle (2), the periphery of the side end face of the circumference automatic welding device main body (5) is rotatably connected with a driving platform (9), the driving platform (9) comprises a driving motor (24), a rotating bearing (25), a driving platform main body (26), a driving gear (27) and a fixing bolt (28), the rotating bearing (25) is fixedly connected with the center of the upper end face of the driving platform main body (26), the driving motor (24) is fixedly installed on one side of the edge of the upper end face of the driving platform main body (26) through the fixing bolt (28), the driving gear (27) is rotatably connected with the lower end face of the driving motor (24), one side of the upper end face of the driving platform (9) is fixedly connected with a, the surface fixing clamp of the welding gun fixing pipe (4) is provided with a welding gun clamping device (3), the welding gun clamping device (3) comprises a first fixing clamp (10), a rotating connecting rod (11), a second fixing clamp (12), a vertical connecting column (13), a third fixing clamp (14), a clamping gasket (15), a welding gun fixing clamp (16), a horizontal connecting rod (17) and a butterfly nut (18), the first fixing clamp (10) is fixedly connected to one end of the rotating connecting rod (11), the second fixing clamp (12) is fixedly connected to the other end of the rotating connecting rod (11), the vertical connecting column (13) is fixedly clamped inside the second fixing clamp (12), the third fixing clamp (14) is fixedly connected to the lower end face of the vertical connecting column (13), and the horizontal connecting rod (17) is fixedly clamped inside the third fixing clamp (14), the welding gun fixing clamp (16) is fixedly connected to one end of a horizontal connecting rod (17), the side end face of the circular automatic welding device main body (5) is fixedly connected with a driven gear (8), the driven gear (8) is located below a driving platform (9), the lower end face of the circular automatic welding device main body (5) is fixedly connected with a positioning guide device (7), the inner part of the positioning guide device (7) is rotatably connected with an installation limiting part (6), the installation limiting part (6) comprises a transmission column (19), a first limiting part (20), a second limiting part (21), a limiting pin (22) and a fixing shaft (23), the first limiting part (20) and the second limiting part (21) are rotatably connected to the side end face of the fixing shaft (23), and the limiting pin (22) is fixedly connected to the lower end faces of the first limiting part (20) and the second limiting part (21), the transmission column (19) is attached to the upper end faces of the first limiting piece (20) and the second limiting piece (21).

2. The peripheral automatic welding device according to claim 1, characterized in that: the first fixing clamp (10) and the welding gun fixing clamp (16) are fixedly clamped through butterfly nuts (18), and the second fixing clamp (12) and the welding gun fixing clamp (16) are fixedly clamped through fixing bolts (28).

3. The peripheral automatic welding device according to claim 1, characterized in that: the rotating bearing (25) is rotatably connected with the circumferential automatic welding device main body (5), and the rotating bearing (25) is concentric with the circumferential automatic welding device main body (5) and the driven gear (8).

4. The peripheral automatic welding device according to claim 1, characterized in that: the driven gear (8) is meshed with the driving gear (27).

5. The peripheral automatic welding device according to claim 1, characterized in that: the outer surface of the fixed rod (1) is provided with external threads, and the inner wall of the circumferential automatic welding device main body (5) is provided with internal threads matched with the fixed rod (1).

6. The peripheral automatic welding device according to claim 1, characterized in that: and a groove matched with the first limiting piece (20) and the second limiting piece (21) is formed in the side end face of the positioning guide device (7).

7. The peripheral automatic welding device according to claim 1, characterized in that: the transmission column (19) is fixedly connected with the bottom of the fixed rod (1).

8. The peripheral automatic welding device according to claim 1, characterized in that: the middle part of the rotating connecting rod (11) is provided with a rotating shaft, and the rotating shaft is fixedly locked through a fixing bolt (28).

9. The peripheral automatic welding device according to claim 1, characterized in that: the clamping gasket (15) is fixedly arranged on the inner wall of the welding gun fixing clamp (16), and anti-skid grains are arranged on the surface of the clamping gasket (15).