CN112548412A

CN112548412A - Integrated lifting ring straight seam welding machine

Info

Publication number: CN112548412A
Application number: CN202011389414.XA
Authority: CN
Inventors: 梁文科; 曲以亮; 李向卫; 王庆波; 闫乐好
Original assignee: Yantai Dingke Machinery Co ltd
Current assignee: Yantai Dingke Machinery Co ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-03-26

Abstract

The invention relates to the field of beer barrel production, in particular to an integrated lifting ring straight seam welding machine which comprises a rotating device, a piano type pressing device, a welding manipulator and a special welding gun, wherein a workbench is arranged on the output end of the rotating device, the piano type pressing device is respectively arranged on the periphery of the workbench, a clamping mechanism is arranged between an axis cantilever on the piano type pressing device and the workbench, the welding manipulator is positioned beside the rotating device, the special welding gun is arranged on the welding manipulator, the output end of the special welding gun is positioned right above the piano type pressing device, and the welding manipulator is formed in a one-step welding mode and is suitable for humanization and high-efficiency requirements in the actual production process.

Description

Integrated lifting ring straight seam welding machine

Technical Field

The invention relates to the field of beer barrel production, in particular to an integrated lifting ring straight seam welding machine.

Background

The upper lifting ring and the lower lifting ring of the full stainless steel beer barrel are main parts in the production process, the second process of processing is to weld the stainless steel plate strip after rolling the barrel in a straight welding way, and the quality and the production efficiency of the welding processing in the straight welding way also influence the production process of the whole beer barrel.

In a long-term actual production process, a plurality of straight welding seam welding machines are produced simultaneously in the traditional method, one person operates one welding seam welding machine, time and labor are wasted, and the production efficiency is low.

In view of this, in order to overcome the shortcomings of the original design and manufacturing scheme, a special machine for welding the straight seam of the stainless steel beer barrel after lifting the ring and winding the barrel up and down is needed.

Disclosure of Invention

Based on this, this application provides a degree of automation height, one shot forming welding, the integration lift ring transversal joint welding machine who is suitable for humanized and the needs of high efficiency in the actual production process.

The application provides a circle transversal joint machine is carried in integration, including slewer, key formula closing device, welding operation machine and special welder, be equipped with the workstation on the slewer output, key formula closing device divides to establish around the workstation, and is equipped with the solid mechanism of card between the axle center cantilever on the key formula closing device and the workstation, the welding operation machine is located the slewer side, and special welder installs on the welding operation machine, and the special welder output is located directly over the key formula closing device.

Preferably, four groups of key type pressing devices are arranged, the four groups of key type pressing devices are respectively installed on the front side, the rear side, the left side and the right side of the workbench, two groups of welding operation machines and two groups of special welding guns are arranged, and the special welding guns on the two groups of welding operation machines are respectively located above the two adjacent groups of key type pressing devices.

Preferably, the workbench comprises a rotary support and four groups of installation frames, the support is fixed on the rotary device, the four groups of installation frames are uniformly fixed on four sides of the rotary support in 90 degrees, the installation frames are provided with welding through holes, and welding tips on special welding guns weld openings of the lifting ring workpieces through the welding through holes.

Preferably, piano key formula closing device includes axle center cantilever, copper backing plate, compresses tightly the copper and compresses tightly gasbag group, the axle center cantilever is installed on slewing bearing, and the axle center cantilever is located under the welding opening, the copper backing plate is installed at axle center cantilever top, and the copper backing plate top is vertically opened there is a slot, makes the welding seam single face welding double-sided shaping after the welding, compresses tightly the copper symmetric division and locates copper backing plate top both sides, compress tightly gasbag group symmetric division and establish in the inside both sides of installation frame, and compress tightly gasbag group and compress tightly the copper contact and realize compressing tightly fixedly.

Preferably, the inside gasbag group that compresses tightly of every installation frame is two sets of, compresses tightly gasbag group bottom and compresses tightly the copper and pass through connection structure and be connected.

Preferably, still include positioning mechanism, positioning mechanism includes pneumatic link mechanism and locating plate, and pneumatic link mechanism installs on the installation frame, and the locating plate is fixed on pneumatic link mechanism output, and when locating plate bottom and copper backing plate top contact, compresses tightly the copper and not with locating plate side contact.

Preferably, the slewing device comprises a base, a rotating motor, a speed reducer, a gear and an outer gear type slewing bearing, wherein the outer gear type slewing bearing is installed on the base, the lower end of the outer gear type slewing bearing is fixed to the middle of the top surface of the base, the upper end of the outer gear type slewing bearing is fixed to the middle of the bottom surface of the workbench, the rotating motor is located on the inner side of the base, the speed reducer is installed on the output end of the rotating motor, the gear is installed on the output end of the speed reducer, and the gear is meshed with the outer ring of the outer gear type slewing bearing.

Preferably, the clamping mechanism comprises a connecting rod rotating shaft, a fixed seat, a connecting rod and a handle jackscrew, the fixed seat is fixed on the workbench, the connecting rod is rotatably connected with the fixed seat through the connecting rod rotating shaft, and the handle jackscrew is in threaded connection with the connecting rod.

Preferably, the welding manipulator comprises a rack, an alternating-current variable-frequency motor, a ball screw mechanism and a lifting mechanism, wherein the alternating-current variable-frequency motor and the ball screw mechanism are both installed on the rack, the input end of the ball screw mechanism is connected with the output shaft of the alternating-current variable-frequency motor, the lifting mechanism is installed on a ball screw of the ball screw mechanism through a threaded structure, a sliding block on the lifting mechanism is connected with a guide rail and a lead screw of the ball screw mechanism in a sliding mode, and the special welding gun is installed on the lifting mechanism.

Preferably, the electric control device further comprises an electric control button station, and the electric control button station is electrically connected with the rotating device, the piano key type pressing device, the positioning mechanism, the welding manipulator and the special welding gun.

Compared with the prior art, the invention has the following characteristics and beneficial effects:

1. the lifting ring workpiece fixed on the piano type pressing device is welded through a special welding gun on the welding operation machine, the rotating device drives the workbench to convert after welding, the welded lifting ring is rotated by 180 degrees, the lifting ring workpiece placed at the other piano type pressing device is converted to be under the special welding gun to be welded, and then the operation is repeated, a plurality of operators are required to use a plurality of straight seam welding machines to complete the operation, the workload of a plurality of single operators can be completed by only 1 person, the number of the operators is reduced, and the labor cost is reduced;

2. the lifting ring workpiece is fixed through the piano key type pressing device, the special welding gun welds the lifting ring workpiece, the rotating device drives the piano key type pressing device on the workbench to rotate, the welded lifting ring and the unwelded lifting ring workpiece are converted, the automation degree of the whole device is enhanced, the one-step welding forming is realized, compared with the manual operation for fixing and welding, the welding seam quality is high, and the product yield is greatly improved;

3. the integrated lifting ring straight seam welding machine can complete synchronous welding of the lifting ring and the lower lifting ring of the all-stainless steel beer barrel in a one-time matching manner, meets the requirements and quality requirements of post-procedure assembly production, and improves the production efficiency;

4. the welding operation worker only needs to carry out two operations of the operation of the controller and the loading and unloading of the workpiece, the labor intensity of the worker is reduced, and the requirements of humanization and high efficiency in the actual production process are met.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a perspective view of FIG. 1;

FIG. 4 is a schematic view of the piano type pressing device;

FIG. 5 is a schematic structural view of a turning device;

FIG. 6 is a schematic structural view of the locking mechanism;

FIG. 7 is a schematic view of the positioning mechanism in a returned position;

fig. 8 is a schematic structural view of the positioning mechanism in use.

The reference numbers in the figures illustrate: 1. a turning device; 2. a piano key type hold down; 3. a welding manipulator; 4. a special welding gun; 5. a rotating support; 6. a mounting frame; 7. an axis cantilever; 8. a copper backing plate; 9. pressing the copper plate; 10. compressing the air bag group; 11. a base; 12. a rotating electric machine; 13. a speed reducer; 14. a gear; 15. an external tooth type slewing bearing; 16. a clamping mechanism; 17 connecting rod rotating shafts; 18. a fixed seat; 19. a connecting rod; 20. a handle jackscrew; 21. an AC variable frequency motor; 22. a ball screw mechanism; 23. a positioning mechanism; 24. a pneumatic linkage mechanism; 25. positioning a plate; 26. a first movable piece; 27. a second movable plate; 28. connecting sheets; 29. a telescopic rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.

It should be understood by those skilled in the art that the electrical components presented in the present document are electrically connected to an external master controller and 220V mains, and the master controller may be a conventional known device such as a computer for controlling, and in the disclosure of the present invention, technical terms or scientific terms used in the claims and the specification should be given ordinary meanings as understood by those having ordinary skill in the art to which the present application belongs, unless otherwise defined. "connected" or "coupled" and like terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect; the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be used in a particular manner without limitation.

As shown in fig. 1-4, to solve the above problems, an embodiment of the present invention provides an integrated lift ring longitudinal welding machine, which includes a rotating device 1, a key type pressing device 2, a welding manipulator 3 and a special welding gun 4, wherein a working table is arranged on an output end of the rotating device 1, the key type pressing device 2 on the working table is driven by the rotating device 1 to rotate, so as to convert a welded lift ring and an unwelded lift ring workpiece, and enhance the automation degree of the whole device, the key type pressing device 2 is separately arranged around the working table, a clamping mechanism 16 is arranged between an axial cantilever 7 on the key type pressing device 2 and the working table, the key type pressing device 2 and the working table are fixed by the clamping mechanism 16, so as to enhance the stability of the lift ring workpiece in the welding process, and simultaneously prevent the axial cantilever 7 from deforming after long-time use, the welding manipulator 3 is located on the rotating device 1, the special welding gun 4 is installed on the welding manipulator 3, the output end of the special welding gun 4 is located right above the piano type pressing device 2, the lifting ring is sleeved on the axle center cantilever 7, the opening end of the lifting ring is located above the axle center cantilever, and the opening is pressed and butted through the piano type pressing device 2, so that the welding is carried out through the special welding gun 4.

Preferably, key type closing device 2 is equipped with four groups, and four groups of key type closing device 2 install respectively in four sides all around the workstation, welding operation machine 3 and special welder 4 all are equipped with two sets ofly, and special welder 4 on two sets of welding operation machines 3 is located adjacent two sets of key type closing device 2 tops respectively, special welder 4 welds the lifting ring of key type closing device 2 department that is located its under to in the welding process, adjacent two sets of key type closing device 2 make things convenient for operating personnel to take the welded lifting ring and lay new needs welded lifting ring work piece in addition.

Preferably, the workbench comprises a rotary support 5 and four groups of mounting frames 6, the support is fixed on the rotary device 1, the four groups of mounting frames 6 are uniformly distributed and fixed on four sides of the rotary support 5 at 90 degrees, the mounting frames 6 are provided with welding through holes, and welding tips on the special welding guns 4 weld openings of the lifting ring workpieces through the welding through holes.

Preferably, the piano type pressing device 2 comprises an axle center cantilever 7, a copper backing plate 8, a pressing copper plate 9 and a pressing air bag group 10, the axle center cantilever 7 is arranged on the rotary support 5, the axis cantilever 7 is positioned right below the welding through hole, the copper backing plate 8 is arranged at the top of the axis cantilever 7, a groove is longitudinally formed at the top of the copper backing plate 8, the alignment of the opening of the lifting ring is convenient, the welded welding seam is formed by welding a single surface and two surfaces, the pressing copper plates 9 are symmetrically arranged at two sides above the copper backing plate 8, the pressing air bag groups 10 are symmetrically arranged at two sides inside the installation frame 6, and the output ends of the pressing air bag groups 10 are connected with the pressing copper plates 9, the ring lifting workpiece is sleeved on the axis cantilever 7, and compressed air is charged and discharged to drive the compression air bag to expand and contract, so that the compression copper plate 9 is in contact with the ring lifting workpiece on the copper backing plate 8, and the two sides of the opening of the ring lifting workpiece are compressed, fixed and reset.

Preferably, the pressing airbag groups 10 in each installation frame 6 are two groups, the bottoms of the pressing airbag groups 10 and the pressing copper plates 9 on the installation frame 6 are pressed and fixed through contact, and the two groups of pressing airbag groups 10 on two sides of the bottom of the installation frame 6 can fully press and fix two sides of the opening of the lifting ring workpiece respectively.

Preferably, the rotary device 1 comprises a base 11, a rotary motor 12, a speed reducer 13, a gear 14 and an external tooth type rotary support 15, the external tooth type rotary support 15 is installed on the base 11, the lower end of the external tooth type rotary support 15 is fixed with the middle of the top surface of the base 11, the upper end of the external tooth type rotary support 15 is fixed with the middle of the bottom surface of the workbench, the rotary motor 12 is located inside the base 11, the speed reducer 13 is installed on the output end of the rotary motor 12, the gear 14 is installed on the output end of the speed reducer 13, the gear 14 is meshed with an external gear of the external tooth type rotary support 15, the whole action process is that the rotary motor 12 rotates after receiving signals, power is transmitted to the external gear of the external tooth type rotary support 15 through the speed reducer 13 and the gear 14, so as to drive the workbench to rotate, the piano key type pressing device 2 is realized, and a, will put and transfer to special welder 4 under and weld, later repetitive operation in the ring work piece of carrying of another key formula closing device 2 department for originally need a plurality of operation workman to use many transversal joint welding machines to accomplish, only need 1 people now can accomplish the work load of former a plurality of single units, reduce operation workman quantity, reduce the cost of labor.

Preferably, the clamping mechanism 16 selects a door buckle type clamp, and comprises a connecting rod rotating shaft 17, a fixed seat 18, a connecting rod 19 and a handle jackscrew 20, wherein the fixed seat 18 is fixed on the workbench, the connecting rod 19 is rotatably connected with the fixed seat 18 through the connecting rod rotating shaft 17, the handle jackscrew 20 is movably fixed on the connecting rod 19, the axis cantilever 7 is tightly jacked through the handle jackscrew 20, the stability of the lifting ring workpiece in the welding process is enhanced, and meanwhile, the axis cantilever 7 is prevented from deforming after being used for a long time.

Preferably, the welding manipulator 3 comprises a rack, an ac inverter motor 21, a ball screw mechanism 22 and a lifting mechanism, the ac inverter motor 21 and the ball screw mechanism 22 are both installed on the rack, and an input end of the ball screw mechanism 22 is connected with an output shaft of the ac inverter motor 21, the lifting mechanism is installed on a ball screw of the ball screw mechanism 22 through a thread structure, a slider on the lifting mechanism is connected with a guide rail and a screw on the ball screw mechanism 22 in a sliding manner, a special welding gun 4 is installed on the lifting mechanism, the ball screw is driven to rotate through the ac inverter motor 21, the lifting mechanism drives the special welding gun 4 to realize welding walking through the thread structure, and the welding manipulator can drive the welding gun 4 to quickly return to an initial point after the welding of a workpiece is finished by presetting a welding speed.

Preferably, the device further comprises a positioning mechanism 23, the positioning mechanism 23 comprises a pneumatic link mechanism 24 and a positioning plate 25, the pneumatic link mechanism 24 is installed on the installation frame 6, the positioning plate 25 is fixed on the output end of the pneumatic link mechanism 24, and when the bottom of the positioning plate 25 contacts with the top of the copper backing plate, the pressing copper plate does not contact with the side of the positioning plate 25, wherein four pneumatic link mechanisms 24 are provided and are respectively arranged on the four installation frames 6, the pneumatic link mechanism 24 comprises a telescopic rod 29 fixed on the outer side of the installation frame 6, a first movable plate 26 connected with the output end of the telescopic rod 29, a second movable plate 27 and a connecting plate 28, the first movable plate 26 and the second movable plate 27 are installed on the inner side of the installation frame 6, the other sides of the first movable plate 26 and the second movable plate connecting plate 27 are respectively hinged with the top end position and the middle part of the, the positioning plate 25 is driven to move by the pneumatic link mechanism 24, so that the positioning plate 25 can position one side of the lifting ring at the top of the copper backing plate 8, and the subsequent pressing air bag group 10 drives the pressing copper plate 9 to press and fix one side of the lifting ring.

Preferably, the electric control device further comprises an electric control button station, the electric control button station is electrically connected with the rotating device 1, the piano type pressing device 2, the positioning mechanism 23, the welding operation machine 3 and the special welding gun 4, an operator directly controls the working conditions of the electric control button station, the rotating device 1, the piano type pressing device 2, the welding operation machine 3 and the special welding gun 4 through the electric control button station, the automation degree of the machine is improved, and the operator only needs to press keys to operate and assemble the welding gun, so that the labor intensity is reduced.

The clamp of the invention is manufactured and used as follows: manually pulling down and fixing a handle jackscrew 20 on an axis cantilever 7, fixing a piano type pressing device 2 with a workbench, enhancing the stability of a lifting ring workpiece in the welding process, punching an opening end of the lifting ring up and sleeving the opening end of the lifting ring on the axis cantilever 7, then driving a positioning plate 25 to descend through a pneumatic connecting rod mechanism 24 and contact with a groove at the top of a copper backing plate 8, aligning the outer side of the positioning plate 25 with the center of the groove, enabling one side of an opening of the lifting ring to be tightly close to the outer side of the positioning plate 25, then controlling a pressing air bag group 10 at the positioning side to expand, driving a pressing copper plate 9 to contact with the lifting ring workpiece at the positioning side, thereby fixing the positioning side of the lifting ring workpiece in a pressing manner, driving the positioning plate 25 to leave the lifting ring through the pneumatic connecting rod mechanism 24 after fixing, simultaneously manually pressing the other side of the lifting ring close to one side and controlling the pressing air bag group 10 at the other side, two sides of the open end of the lifting ring are contacted, then the alternating current variable frequency motor 21 is controlled to drive the ball screw to rotate, the lifting mechanism drives the special welding gun 4 to realize welding walking through the thread structure, and the open ends of the lifting ring contacted together are welded through the special welding gun 4; meanwhile, in the welding process, two groups of special welding guns 4 respectively weld the lifting rings of two adjacent groups of key type pressing devices 2 which are positioned right below the special welding guns, in addition, the two adjacent groups of key type pressing devices 2 are convenient for operators to take the welded lifting rings and place new lifting ring workpieces which need to be welded, so that the rotating motor 12 drives the workbench to rotate after receiving signals, the two groups of welded lifting rings are rotated away, 2 lifting ring workpieces which are placed at the other 2 key type pressing devices are rotated to be right below the two groups of special welding guns 4 for welding, synchronous welding of the lifting rings and the lifting rings of the full stainless steel beer barrels can be completed in one-step matching, the requirements and the quality requirements of assembly and production of the subsequent procedures are met, the production efficiency is improved, and the work which needs 4 operators to complete by using a plurality of straight seam welding machines originally can be completed by only 1 person at present, the number of operators is reduced, the labor cost is reduced.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. Integration is carried circle longitudinal welding machine, its characterized in that: including slewer (1), piano type closing device (2), welding operation machine (3) and special welder (4), be equipped with the workstation on slewer (1) output, piano type closing device (2) are established around the workstation separately, welding operation machine (3) are located slewer (1) side, and special welder (4) are installed on welding operation machine (3), and special welder (4) output is located piano type closing device (2) directly over.

2. The integrated lifting ring straight seam welding machine according to claim 1, characterized in that the key type pressing devices (2) are provided with four groups, the four groups of key type pressing devices (2) are respectively arranged on the front side, the rear side, the left side and the right side of the workbench, the welding operation machines (3) and the special welding guns (4) are respectively provided with two groups, and the special welding guns (4) on the two groups of welding operation machines (3) are respectively positioned above the two adjacent groups of key type pressing devices (2).

3. The integrated lifting coil straight seam welding machine according to claim 1, characterized in that the working table comprises a rotary support (5) and four groups of mounting frames (6), the support is fixed on the rotary device (1), the four groups of mounting frames (6) are equally fixed on four sides of the rotary support (5) at 90 degrees, and welding through holes are arranged on the mounting frames (6).

4. The integrated lifting ring longitudinal welding machine according to claim 1, wherein the piano type pressing device (2) comprises an axis cantilever (7), a copper base plate (8), a pressing copper plate (9) and a pressing air bag group (10), the axis cantilever (7) is installed on the rotary support (5), the axis cantilever (7) is located under the welding port, the copper base plate (8) is installed at the top of the axis cantilever (7), a groove is longitudinally formed in the top of the copper base plate (8), the pressing copper plate (9) is symmetrically arranged on two sides above the copper base plate (8), the pressing air bag group (10) is symmetrically arranged on two sides inside the installation frame (6), and the output end of the pressing air bag group (10) is connected with the pressing copper plate (9).

5. An integrated lifting ring straight seam welding machine according to any one of claims 3-4, characterized in that the pressing air bag sets (10) in each mounting frame (6) are two, and the bottoms of the pressing air bag sets (10) are in contact with the pressing copper plate (9) to realize pressing fixation.

6. The integrated lifting ring straight seam welding machine according to claim 1, wherein the rotary device (1) comprises a base (11), a rotary motor (12), a speed reducer (13), a gear (14) and an outer tooth type rotary support (15), the outer tooth type rotary support (15) is installed on the base (11), the lower end of the outer tooth type rotary support (15) is fixed to the middle of the top surface of the base (11), the upper end of the outer tooth type rotary support (15) is fixed to the middle of the bottom surface of the workbench, the rotary motor (12) is located on the inner side of the base (11), the speed reducer (13) is installed on the output end of the rotary motor (12), the gear (14) is installed on the output end of the speed reducer (13), and the gear (14) is meshed with the outer ring of the outer tooth type rotary support (15).

7. The integrated lifting ring straight seam welding machine according to claim 1, wherein a clamping mechanism (16) is arranged between the axis cantilever (7) on the piano type pressing device (2) and the workbench, the clamping mechanism (16) comprises a connecting rod rotating shaft (17), a fixed seat (18), a connecting rod (19) and a handle top wire (20), the fixed seat (18) is fixed on the workbench, the connecting rod (19) is rotatably connected with the fixed seat (18) through the connecting rod rotating shaft (17), and the handle top wire (20) is in threaded connection with the connecting rod (19).

8. The integrated lifting coil straight seam welding machine according to claim 1, characterized in that the welding manipulator (3) comprises a frame, an alternating current variable frequency motor (21), a ball screw mechanism (22) and a lifting mechanism, wherein the alternating current variable frequency motor (21) and the ball screw mechanism (22) are both mounted on the frame, the input end of the ball screw mechanism (22) is connected with the output shaft of the alternating current variable frequency motor (21), the lifting mechanism is mounted on a ball screw of the ball screw mechanism (22) through a threaded structure, a slide block on the lifting mechanism is connected with a guide rail and a lead screw of the ball screw mechanism (22) in a sliding manner, and the special welding gun (4) is mounted on the lifting mechanism.

9. An integrated lifting coil straight seam welding machine according to claim 1, characterized by further comprising a positioning mechanism (23), wherein the positioning mechanism (23) comprises a pneumatic link mechanism (24) and a positioning plate (25), the pneumatic link mechanism (24) is mounted on a mounting frame, and the positioning plate (25) is fixed on the output end of the pneumatic link mechanism (24).

10. An integrated lifting ring longitudinal welding machine according to claim 1, characterized by further comprising an electric control button station electrically connected with the turning device (1), the piano type pressing device (2), the positioning mechanism (23), the welding manipulator (3) and the special welding gun (4).