CN213196349U - Welding auxiliary device of head around jar body - Google Patents

Abstract

The application discloses a welding auxiliary device for front and rear end sockets of a tank body, which comprises a tank body welding platform and an auxiliary welding device, wherein a tank body front mold is arranged at one end of the tank body welding platform, and a tank body rear mold is arranged at the other end of the tank body welding platform; the tank body front mould is provided with a limiting surface, and the limiting surface can be attached to the outer side surface of the tank skin at the front opening; the tank body rear mould comprises a first rear mould and a second rear mould, the first rear mould and the second rear mould are rotatably connected with the tank body welding platform, and the first rear mould and the second rear mould can relatively rotate to extrude the outer side surface of the tank skin at the rear opening; the auxiliary welding device is provided with a telescopic rod assembly capable of rotating, the telescopic rod assembly is provided with a telescopic operation end, and the telescopic operation end can apply pressure to the inner side surface of the tank cover at the front opening. Can guarantee through this welding auxiliary device that the tank skin laminates between with front and back head each other, make the welding between tank skin and the front and back head firm stable, the jar body is neater more pleasing to the eye, can improve work efficiency simultaneously.

Description

Welding auxiliary device of head around jar body

Technical Field

The utility model relates to a jar body head processing technology field especially relates to a welding auxiliary device of head around jar body.

Background

The tank body generally comprises two end sockets and a section of tank skin rolled into a cylinder body, when a tank body manufacturer produces the tank body, the tank skin is firstly rolled into the cylinder body, but after the tank body is rolled into the shape, the tank skin is not standard, and certain difficulty is caused to the welding work of installing the front end socket and the rear end socket at the back.

When the tank skin is rolled into a shape larger than the standard shape, the tank opening is reduced by pulling the tank skin inwards by a rope tightener or a pull rod manually in the prior art, so that the end enclosure is convenient to install; when the tank skin is rolled into a shape smaller than the standard shape, a jack or other tools are generally adopted to prop the tank opening outwards, but when the method is adopted, the tank opening is propped or reduced, and the situation that gaps between the tank skin and the end socket cannot be well attached to each other still exists in the installation of the end socket, and the correction still needs to be carried out by using a hammer. Therefore, the working efficiency is greatly reduced, and the tank body is not beautiful.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a welding auxiliary device of head around jar body, this jar body around welding auxiliary device of head can guarantee to laminate each other between can skin and the front and back head, make the welding between can skin and the front and back head firm stable, the jar body is neater more pleasing to the eye, can improve work efficiency simultaneously.

In order to achieve the purpose, the utility model provides a welding auxiliary device for front and rear end sockets of a tank body, the tank body comprises a tank skin, a rear end socket and a front end socket, the tank skin is provided with a front opening and a rear opening, the front end socket is fixed at the front opening, the rear end socket is fixed at the rear opening, the welding auxiliary device comprises a tank body welding platform and an auxiliary welding device, one end of the tank body welding platform is provided with a tank body front mold, and the other end is provided with a tank body rear mold; the tank body front mold is provided with a limiting surface, and the limiting surface can be attached to the outer side surface of the tank skin at the front opening; the tank body rear mould comprises a first rear mould and a second rear mould, the first rear mould and the second rear mould are rotatably connected with the tank body welding platform, and the first rear mould and the second rear mould can relatively rotate to extrude the outer side surface of the tank skin at the rear opening; the auxiliary welding device is provided with a telescopic rod assembly capable of rotating, the telescopic rod assembly is provided with a telescopic operation end, and the telescopic operation end can apply pressure to the inner side surface of the tank skin at the front opening. When welding, firstly, the tank skin which is coiled into a shape is placed on a tank body welding platform, the tank skin is subjected to preliminary limiting and fixing through a tank body front die, then the front end enclosure is installed at a specified position and fixed, when the tank skin cannot be well attached to the front end enclosure, pressure is applied to the inner side surface of the tank skin by virtue of a telescopic rod assembly of an auxiliary welding device, the tank skin which cannot be attached to the front end enclosure is expanded outwards and attached to the front end enclosure under the action of force of a telescopic rod, the telescopic rod assembly can rotate to conveniently expand any position of a front opening outwards, the tank skin at the front opening is ensured to be well attached to the front end enclosure, and welding can be carried out at the moment; when the rear end enclosure needs to be welded, the rear end enclosure is installed in the tank skin at the rear opening and fixed, the first rear die and the second rear die are enabled to rotate towards the inner side of the tank welding platform, the tank skin at the rear opening is squeezed by the first rear die and the second rear die, the tank skin is enabled to shrink towards the middle part and cover the rear end enclosure, and then welding can be conducted. Can guarantee through this welding auxiliary device that the tank skin laminates between with front and back head each other, make the welding between tank skin and the front and back head firm stable, the jar body is neater more pleasing to the eye, can improve work efficiency simultaneously.

In one example, the auxiliary welding device comprises a bracket and a rotating piece, wherein the rotating piece is arranged on the bracket and is fixedly connected with the telescopic rod assembly. The rotating piece arranged on the support can drive the telescopic rod assembly to rotate, so that the telescopic operation end of the telescopic rod assembly can expand any can skin of the front opening outwards, and the can skin of the front opening is well attached to the front end enclosure.

In one example, the telescopic rod assembly comprises a first telescopic rod and a second telescopic rod which are fixedly connected, the first telescopic rod and the second telescopic rod are respectively provided with the telescopic operation end and a fixed end, the fixed ends of the first telescopic rod and the second telescopic rod are respectively fixedly connected with the rotating piece, and the telescopic operation ends of the first telescopic rod and the second telescopic rod respectively face opposite directions. First telescopic link can stretch out and draw back alone with the second telescopic link, and the flexible operation end of first telescopic link and second telescopic link is towards opposite direction respectively, when stretching into the preceding opening with flexible pole subassembly and carrying out outside extrusion to the tank skin, two relative flexible operation ends homoenergetic can be exerted the force to the tank skin, and two flexible operation ends can each other be for supporting, make flexible pole subassembly more stable when using.

In one example, the telescopic rod assembly further comprises a first telescopic power device and a second telescopic power device, the first telescopic rod comprises a first fixed section and a first telescopic section which are slidably connected, and the second telescopic rod comprises a second fixed section and a second telescopic section which are slidably connected; one end of the first telescopic power device is fixed on the first fixed section, and the other end of the first telescopic power device is fixed on the first telescopic section; one end of the second telescopic power device is fixed on the second fixed section, and the other end of the second telescopic power device is fixed on the second telescopic section. The first telescopic rod and the second telescopic rod are telescopic mainly by a first telescopic power device and a second telescopic power device, the first telescopic power device and the second telescopic power device can be arranged into parts such as telescopic oil cylinders, and the stability is good.

In one example, the auxiliary welding device further comprises a lifting plate, the support is provided with a guide portion, the lifting plate is connected to the guide portion in a sliding mode, and the rotating piece is fixedly arranged on the lifting plate. The cooperation of lifter plate and guide part can make telescopic link assembly when can rotating flexible, can also use the rotating member to carry out the adjustment from top to bottom as the center, and the jar body of adaptable multiple difference more conveniently carries out the adjustment of multidimension degree to telescopic link assembly, and auxiliary welding device's availability factor can promote to some extent.

In one example, the auxiliary welding device further comprises a lifting power device, one end of the lifting power device is fixed to the support, and the other end of the lifting power device is fixed to the lifting plate. The lifting power device mainly provides power for the lifting of the telescopic rod component, and can be arranged into components such as an oil cylinder and the like.

In one example, the telescopic work end is provided with a pressing portion having a pressing surface by which the pressing portion can apply pressure to an inner side surface of the can skin at the front opening. The squeezing surface of the squeezing part can change the contact between the telescopic operation end and the inner side surface of the can skin into surface contact, so that the small-range deformation of the can skin is reduced as much as possible when the telescopic operation end applies force to the inner side surface of the can skin, and the damage of the telescopic operation end to the inner side surface of the can skin is reduced.

In one example, the first rear mold comprises a first rotating arm, the second rear mold comprises a second rotating arm, the first rotating arm is provided with a first clamping surface, the second rotating arm is provided with a second clamping surface, and the first clamping surface and the second clamping surface are oppositely arranged and can extrude two outer sides of the can skin at the rear opening.

In one example, the first rear mold further comprises a first rotary power device, one end of the first rotary power device is connected with the tank welding platform, and the other end of the first rotary power device is connected with the first rotary arm; the second rear die further comprises a second rotary power device, one end of the second rotary power device is connected with the tank welding platform, and the other end of the second rotary power device is connected with the second rotating arm; the first rotary power device and the second rotary power device can respectively drive the first rotating arm and the second rotating arm to rotate on the tank welding platform. The first rotary power device and the second rotary power device mainly provide rotary power for the first rotary arm and the second rotary arm, and can be arranged into parts such as an oil cylinder and the like, so that the stability is better.

In one example, the tank body rear mold further comprises a pull rod detachably arranged on the first rotating arm in a penetrating manner, and the pull rod can interfere with the tank skin when the first rear mold rotates in a direction away from the tank skin so as to enlarge the rear opening of the tank skin; and/or, pull rod detachably wears to locate the second swinging boom, the pull rod can be in the second back mould is to keeping away from when the direction of tank skin rotates with the tank skin interferes so that the tank skin the back opening grow. When the shape of the can skin is smaller than the standard shape after being rolled up, the pull rod can be arranged on the first rotating arm and the second rotating arm in a penetrating mode, the pull rod is enabled to hook the can skin at the rear opening, the first rotating arm and the second rotating arm rotate in the direction far away from the can skin to pull the can skin outwards, and when the rear end enclosure can be placed into the can skin, the first rotating arm and the second rotating arm stop rotating to detach the pull rod; the rear end enclosure can be placed into the can skin, the position is adjusted, the first rotating arm and the second rotating arm rotate towards the can skin, the can skin is extruded to enable the can skin to shrink towards the middle part and cover the rear end enclosure, and then welding can be carried out.

Drawings

The drawings described herein are intended only to assist those skilled in the art in understanding the technical solutions of the present invention, and the exemplary embodiments of the present invention described in conjunction with the drawings are intended only to explain the technical solutions of the present invention and do not constitute an undue limitation on the present invention. In the drawings:

fig. 1 is a schematic view of a three-dimensional structure of a welding auxiliary device provided in an embodiment of the present invention, which is matched with a tank body;

fig. 2 is a schematic view of a three-dimensional structure of a tank welding platform, a tank front mold and a tank rear mold provided in an embodiment of the present invention;

fig. 3 is a schematic view of the tank body, the tank body rear mold and the tank body welding platform provided in the embodiment of the present invention;

fig. 4 is a schematic perspective view of an auxiliary welding device according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a telescopic rod assembly and a rotating member according to an embodiment of the present invention;

fig. 6 is a schematic perspective view of a tank body according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a front head according to an embodiment of the present invention;

fig. 8 is a schematic view of a three-dimensional structure of the rear head provided by the embodiment of the present invention.

List of reference numerals:

a tank welding platform 1; an auxiliary welding device 2; a telescopic rod assembly 21; a support 22, a bottom plate 221, a vertical plate 222, a rotating wheel 223, a lifting plate 224, a guide part 225 and a lifting power device 226; a rotary member 23; the first telescopic rod 24, the first fixed section 241 and the first telescopic section 242; a second telescopic rod 25, a second fixed section 251 and a second telescopic section 252; the telescopic working end 26, the pressing portion 261, and the pressing surface 262; a fixed end 27; a first telescopic power unit 28; a second telescopic power unit 29; a tank body front mold 3 and a limiting surface 31; a tank back mold 4; a first back mold 41, a first rotating arm 411, a first clamping surface 412, a first rotating power device 413; a second rear mold 42, a second rotating arm 421, a second clamping surface 422, and a second rotating power device 423; a pull rod 43; a can body 100; a can skin 110, a front opening 111, a rear opening 112; a rear end enclosure 120; a front head 130.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; 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 application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 8, the utility model provides a welding auxiliary device for front and rear end sockets of a tank body, as shown in fig. 6 to 8, the tank body 100 comprises a tank skin 110, a rear end socket 120 and a front end socket 130, the tank skin 110 is provided with a front opening 111 and a rear opening 112, the front end socket 130 is fixed at the front opening 111, the rear end socket 120 is fixed at the rear opening 112, the welding auxiliary device comprises a tank body welding platform 1 and an auxiliary welding device 2, one end of the tank body welding platform 1 is provided with a tank body front mold 3, and the other end is provided with a tank body rear mold 4; the can body front mould 3 is provided with a limiting surface 31, and the limiting surface 31 can be attached to the outer side surface of the can skin 110 at the front opening 111; the tank body rear mold 4 comprises a first rear mold 41 and a second rear mold 42, the first rear mold 41 and the second rear mold 42 are rotatably connected with the tank body welding platform 1, and the first rear mold 41 and the second rear mold 42 can relatively rotate to extrude the outer side surface of the tank skin 110 at the rear opening 112; the auxiliary welding device 2 has a rotatable telescopic rod assembly 21, and the telescopic rod assembly 21 has a telescopic working end capable of applying pressure to the inner side surface of the can shell 110 at the front opening 111. When welding, firstly, the can skin 110 which is coiled into a shape is placed on a can body welding platform 1, the can skin 110 is subjected to preliminary limiting and fixing through a can body front die 3, then the front end enclosure 130 is installed at a specified position and fixed, when the can skin 110 cannot be well attached to the front end enclosure 130, pressure is applied to the inner side surface of the can skin 110 through the telescopic rod component 21 of the auxiliary welding device 2, the can skin 110 which cannot be attached to the front end enclosure 130 is outwardly expanded and attached to the front end enclosure 130 under the action of the force of the telescopic rod component 21, the telescopic rod component 21 can rotate to conveniently outwardly expand any position of the front opening 111, the can skin 110 at the front opening 111 is well attached to the front end enclosure 130, and then welding can be carried out; when the rear end enclosure 120 needs to be welded, the rear end enclosure 120 is installed in the can skin 110 at the rear opening 112 and fixed, the first rear mold 41 and the second rear mold 42 are rotated towards the inner side of the can body welding platform 1, the first rear mold 41 and the second rear mold 42 can extrude the can skin 110 at the rear opening 112, the can skin 110 is contracted towards the middle part and covers the rear end enclosure 120, and then welding can be performed. Can guarantee through this welding auxiliary device that the tank skin 110 laminates between with front and back head each other, make the firm stability of welding between tank skin 110 and the front and back head, the jar body 100 is more neat and artistic, can improve work efficiency simultaneously.

Specifically, as shown in fig. 1 and 7, the front head 130 is a square head, and when the front head 130 has other shapes than square, the welding auxiliary device can be used as well, and the application is not limited to this.

In one embodiment, as shown in fig. 1, 4 to 5, the auxiliary welding device 2 includes a bracket 22 and a rotating member 23, and the rotating member 23 is disposed on the bracket 22 and fixedly connected to the telescopic rod assembly 21. The rotating member 23 disposed on the bracket 22 can drive the telescopic rod assembly 21 to rotate, so that the telescopic operation end of the telescopic rod assembly 21 can outwardly expand any can shell 110 at the front opening 111, thereby ensuring good fit between the can shell 110 at the front opening 111 and the front end enclosure 130.

Specifically, as shown in fig. 1 and 4, the support 22 includes a bottom plate 221, a vertical plate 222 and a rotating wheel 223, the vertical plate 222 is vertically fixed to the bottom plate 221, and a plurality of rotating wheels 223 are disposed on the bottom surface of the bottom plate 221, so that a worker can push the auxiliary welding device 2 to move the auxiliary welding device.

In one embodiment, as shown in fig. 5, the telescopic rod assembly 21 includes a first telescopic rod 24 and a second telescopic rod 25 fixedly connected to each other, each of the first telescopic rod 24 and the second telescopic rod 25 has a telescopic working end 26 and a fixed end 27, each of the fixed ends 27 of the first telescopic rod 24 and the second telescopic rod 25 is fixedly connected to the rotating member 23, and the telescopic working ends 26 of the first telescopic rod 24 and the second telescopic rod 25 face in opposite directions, respectively. First telescopic link 24 and second telescopic link 25 can stretch out and draw back alone, and the flexible operation end 26 of first telescopic link 24 and second telescopic link 25 is the opposite direction of orientation respectively, when stretching into preceding opening 111 with telescopic link subassembly 21 and carry out outside extrusion to tank skin 110, two relative flexible operation ends 26 homoenergetic are enough to exert force to tank skin 110, and two flexible operation ends 26 can each other be for supporting, make telescopic link subassembly 21 more stable when using.

In one embodiment, as shown in fig. 5, the telescopic rod assembly 21 further comprises a first telescopic power device 28 and a second telescopic power device 29, the first telescopic rod 24 comprises a first fixed section 241 and a first telescopic section 242 which are slidably connected, and the second telescopic rod 25 comprises a second fixed section 251 and a second telescopic section 252 which are slidably connected; one end of the first telescopic power device 28 is fixed to the first fixed section 241, and the other end is fixed to the first telescopic section 242; the second telescopic power device 29 has one end fixed to the second fixed section 251 and the other end fixed to the second telescopic section 252. The first telescopic rod 24 and the second telescopic rod 25 mainly depend on a first telescopic power device 28 and a second telescopic power device 29, and the first telescopic power device 28 and the second telescopic power device 29 can be arranged into parts such as telescopic oil cylinders, and the stability is good.

In one embodiment, as shown in fig. 1 and 4, the auxiliary welding device 2 further includes a lifting plate 224, the bracket 22 is provided with a guide portion 225, the lifting plate 224 is slidably connected to the guide portion 225, and the rotating member 23 is fixedly disposed on the lifting plate 224. The cooperation of lifter plate 224 and guide 225 can make telescopic rod subassembly 21 can rotate flexible while, can also use swivel 23 to carry out the adjustment from top to bottom as the center, and the jar body 100 of adaptable multiple difference more conveniently carries out the adjustment of multidimension degree to telescopic rod subassembly 21, and auxiliary welding device 2's availability factor can promote to some extent.

In one embodiment, as shown in fig. 1 and 4, the auxiliary welding device 2 further includes a lifting power device 226, and one end of the lifting power device 226 is fixed to the support frame 22 and the other end is fixed to the lifting plate 224. The lifting power device 226 mainly provides power for lifting the telescopic rod assembly 21, and the lifting power device 226 may be configured as an oil cylinder or the like.

In one embodiment, as shown in fig. 1, 4 to 5, the telescopic working end 26 is provided with a pressing portion 261, the pressing portion 261 has a pressing surface 262, and the pressing portion 261 can apply pressure to the inner side surface of the can skin 110 at the front opening 111 through the pressing surface 262. The pressing surface 262 of the pressing portion 261 can bring the contact between the telescopic working end 26 and the inner surface of the can skin 110 into surface contact, and when the telescopic working end 26 applies a force to the inner surface of the can skin 110, the deformation of the can skin 110 in a small range is reduced as much as possible, thereby reducing the damage of the telescopic working end 26 to the inner surface of the can skin 110.

In one embodiment, as shown in fig. 1 to 3, the first rear mold 41 includes a first rotating arm 411, the second rear mold 42 includes a second rotating arm 421, the first rotating arm 411 has a first clamping surface 412, the second rotating arm 421 has a second clamping surface 422, and the first clamping surface 412 and the second clamping surface 422 are disposed opposite to each other and can press two outer sides of the can skin 110 at the rear opening 112.

In one embodiment, as shown in fig. 1 to 3, the first back mold 41 further includes a first rotary power device 413, one end of the first rotary power device 413 is connected to the can welding platform 1, and the other end is connected to the first rotating arm 411; the second rear mold 42 further comprises a second rotary power device 423, one end of the second rotary power device 423 is connected with the tank welding platform 1, and the other end is connected with the second rotating arm 421; the first rotary power device 413 and the second rotary power device 423 can respectively drive the first rotating arm 411 and the second rotating arm 421 to rotate on the can welding platform 1. The first and second rotary power devices 413 and 423 mainly provide rotary power for the first and second rotating arms 411 and 421, and can be configured as oil cylinders, which have better stability.

In one embodiment, as shown in fig. 2, the can body rear mold 4 further includes a pull rod 43, the pull rod 43 is detachably disposed through the first rotating arm 411, and the pull rod 43 can interfere with the can skin 110 when the first rear mold 41 rotates in a direction away from the can skin 110 to enlarge the rear opening 112 of the can skin 110; and/or the pull rod 43 is detachably disposed through the second rotating arm 421, and the pull rod 43 can interfere with the can skin 110 when the second rear mold 42 rotates in a direction away from the can skin 110, so as to enlarge the rear opening 112 of the can skin 110. When the can skin 110 is smaller than the standard shape after being rolled up, the pull rod 43 can be arranged on the first rotating arm 411 and the second rotating arm 421 in a penetrating manner, so that the pull rod 43 hooks the can skin 110 at the rear opening, the first rotating arm 411 and the second rotating arm 421 rotate towards the direction far away from the can skin 110, the can skin 110 is pulled outwards, when the rear end enclosure 120 can be placed in the can skin 110, the first rotating arm 411 and the second rotating arm 421 stop rotating, and the pull rod 43 is detached; then, the rear end enclosure 120 can be placed in the can shell 110, the position is adjusted, the first rotating arm 411 and the second rotating arm 421 rotate towards the can shell, the can shell 110 is squeezed, so that the can shell 110 shrinks towards the middle part and covers the rear end enclosure 120, and then welding can be carried out.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a welding auxiliary device of head around jar body, jar body includes tank skin, back head and preceding head, the tank skin has preceding opening and back opening, preceding head is fixed in preceding opening part, back head is fixed in back opening part, its characterized in that, welding auxiliary device includes:

the tank body welding platform is provided with a tank body front mold at one end and a tank body rear mold at the other end; the tank body front mold is provided with a limiting surface, and the limiting surface can be attached to the outer side surface of the tank skin at the front opening; the tank body rear mould comprises a first rear mould and a second rear mould, the first rear mould and the second rear mould are rotatably connected with the tank body welding platform, and the first rear mould and the second rear mould can relatively rotate to extrude the outer side surface of the tank skin at the rear opening;

the auxiliary welding device is provided with a telescopic rod assembly capable of rotating, the telescopic rod assembly is provided with a telescopic operation end, and the telescopic operation end can apply pressure to the inner side surface of the can skin at the front opening.

2. The auxiliary welding device for the front and rear end enclosures of the tank body as claimed in claim 1, wherein the auxiliary welding device comprises a support and a rotating member, and the rotating member is arranged on the support and fixedly connected with the telescopic rod assembly.

3. The auxiliary welding device for the front and rear end enclosures of the tank body according to claim 2, wherein the telescopic rod assembly comprises a first telescopic rod and a second telescopic rod which are fixedly connected, the first telescopic rod and the second telescopic rod are respectively provided with a telescopic working end and a fixed end, the fixed ends of the first telescopic rod and the second telescopic rod are respectively fixedly connected with the rotating member, and the telescopic working ends of the first telescopic rod and the second telescopic rod respectively face opposite directions.

4. The auxiliary welding device for the front and rear end enclosures of the tank body according to claim 3, wherein the telescopic rod assembly further comprises a first telescopic power device and a second telescopic power device, the first telescopic rod comprises a first fixed section and a first telescopic section which are connected in a sliding manner, and the second telescopic rod comprises a second fixed section and a second telescopic section which are connected in a sliding manner;

one end of the first telescopic power device is fixed on the first fixed section, and the other end of the first telescopic power device is fixed on the first telescopic section; one end of the second telescopic power device is fixed on the second fixed section, and the other end of the second telescopic power device is fixed on the second telescopic section.

5. The auxiliary welding device for the front and rear end enclosures of the tank body as claimed in claim 2, wherein the auxiliary welding device further comprises a lifting plate, the support is provided with a guide portion, the lifting plate is slidably connected to the guide portion, and the rotating member is fixedly arranged on the lifting plate.

6. The auxiliary welding device for the front and rear end enclosures of the tank body as claimed in claim 5, wherein the auxiliary welding device further comprises a lifting power device, one end of the lifting power device is fixed on the support, and the other end of the lifting power device is fixed on the lifting plate.

7. The auxiliary welding device for the front and rear end sockets of the tank body as claimed in claim 1, wherein the telescopic working end is provided with a squeezing part, the squeezing part is provided with a squeezing surface, and the squeezing part can apply pressure to the inner side surface of the tank shell at the front opening through the squeezing surface.

8. The auxiliary welding device for the front and rear end enclosures of the tank body as claimed in claim 1, wherein the first rear mold comprises a first rotating arm, the second rear mold comprises a second rotating arm, the first rotating arm is provided with a first clamping surface, the second rotating arm is provided with a second clamping surface, and the first clamping surface and the second clamping surface are oppositely arranged and can extrude two outer sides of the tank skin at the rear opening.

9. The auxiliary welding device for the front and rear end enclosures of the tank body as claimed in claim 8, wherein the first rear mold further comprises a first rotary power device, one end of the first rotary power device is connected with the tank body welding platform, and the other end of the first rotary power device is connected with the first rotary arm; the second rear die further comprises a second rotary power device, one end of the second rotary power device is connected with the tank welding platform, and the other end of the second rotary power device is connected with the second rotating arm;

the first rotary power device and the second rotary power device can respectively drive the first rotating arm and the second rotating arm to rotate on the tank welding platform.

10. The auxiliary welding device for the front and rear end enclosures of the tank body according to claim 8, wherein the rear mold of the tank body further comprises a pull rod, the pull rod is detachably arranged in the first rotating arm in a penetrating manner, and the pull rod can interfere with the tank skin when the first rear mold rotates in a direction away from the tank skin so as to enlarge the rear opening of the tank skin; and/or the presence of a gas in the gas,

the pull rod detachably wears to locate the second swinging boom, the pull rod can be in the mould is to keeping away from behind the second when the direction of tank skin rotates with the tank skin interferes so that the tank skin the back opening grow.

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