CN215509694U

CN215509694U - Welding equipment for capital construction standard knot

Info

Publication number: CN215509694U
Application number: CN202121041020.5U
Authority: CN
Inventors: 刘洪雨
Original assignee: Anhui Awes Intelligent Equipment Technology Co ltd
Current assignee: Anhui Awes Intelligent Equipment Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-01-14
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to the technical field of standard knot welding, in particular to welding equipment for a capital construction standard knot, which comprises a robot welding workstation, standard knot welding position changers, a carrier frame, a welding control cabinet and a position changer electric cabinet, wherein the robot welding workstation is arranged between a pair of standard knot welding position changers; the utility model can realize positioning and fixing of six side surfaces of the standard knot, the standard knot is not easy to loosen during welding, the accuracy of the welding position is ensured, the center positioning of the round pipe in the standard knot can be realized, and the utility model has wide market prospect.

Description

Welding equipment for capital construction standard knot

Technical Field

The utility model relates to the technical field of standard knot welding, in particular to welding equipment for capital construction standard knots.

Background

The tower crane is an indispensable equipment tower crane in the capital construction work, the tower crane is continuously connected with high standard sections one by one, and is used for lifting construction raw materials such as reinforcing steel bars, wood ridges, concrete, steel pipes and the like for construction, and a qualified standard section can not only improve the stability of the tower cranes, but also obviously improve the safety performance and the working efficiency of the tower cranes, and even can play a role of achieving twice the result with half the effort.

At present, a plurality of problems exist in the welding process of the standard knot of the tower crane, for example: the stability is poor during welding, the standard knot is easy to loosen, the welding position is deviated, and the welding effect is not ideal; the standard knot is inconvenient to overturn during welding, and welding dead angles exist due to the fact that the standard knot is welded.

SUMMERY OF THE UTILITY MODEL

The utility model provides welding equipment for capital construction standard knot aiming at the problems provided by the background technology.

The utility model is realized by the following technical scheme:

the utility model provides a welding equipment of capital construction standard festival, includes robot weldment work station, standard festival positioner, carrier frame, welding control cabinet and positioner electric cabinet, robot weldment work station sets up in a pair of between the standard festival positioner, it is a pair of all install on the standard festival positioner the carrier frame, robot weldment work station with welding control cabinet electric connection, standard festival positioner with positioner electric cabinet electric connection, the promotion positioning mechanism is all installed to the left and right sides of carrier frame, the leading flank of carrier frame installs from centering structure, the trailing end positioning mechanism is installed to the trailing flank of carrier frame, carrier frame internally mounted has the standard festival of waiting to weld, still install jacking positioning mechanism on the standard festival positioner.

As a further improvement of the above scheme, the carrier frame includes a front baffle, a rear baffle, shaping columns and a carrier rack, the front baffle and the rear baffle are arranged in a front-rear opposite manner, four shaping columns are fixedly installed between the front baffle and the rear baffle along the circumferential direction, and the carrier rack is fixedly installed at the bottom ends of the two shaping columns above the front baffle and the rear baffle through bolts;

the outer end of the connecting shaft is mounted on the standard knot positioner through a bearing flange.

As a further improvement of the scheme, a plurality of first brackets and a cylinder frame are mounted at the bottom end of the object carrier, a first electric cylinder is mounted on the cylinder frame, and first inclined rod positioning clamps are mounted at the telescopic ends of the first electric cylinder.

As a further improvement of the above scheme, four corners on the surface of the rear baffle are all provided with the tail end positioning mechanism, the tail end positioning mechanism comprises a second electric cylinder and a circular clamping sleeve, the second electric cylinder is fixed on the rear side wall of the rear baffle, the circular clamping sleeve is fixed on the front side wall of the rear baffle, the telescopic end of the second electric cylinder is fixed with a push plate, and the push plate is slidably mounted on the inner wall of the circular clamping sleeve.

As a further improvement of the above scheme, the pushing and positioning mechanism includes a front fixing seat, a rear fixing seat, a sliding seat, a cross beam and a third electric cylinder, a sliding rail is fixedly mounted at the bottom ends of the front fixing seat and the rear fixing seat, the sliding seat is slidably mounted on the sliding rail, the cross beam is fixedly mounted between the front sliding seat and the rear sliding seat, and the cross beam is pushed and pulled transversely by the pair of third electric cylinders;

a plurality of first positioning frames and a connecting frame are fixedly mounted on one side, facing the standard joint to be welded, of the cross beam, and a second inclined rod positioning clamp is fixedly mounted on each first positioning frame.

As the further improvement of above-mentioned scheme, standard festival positioner includes base, mainframe and tail frame, the base passes through screw fixed mounting in subaerial, the upper end of base fixed mounting respectively has the mainframe reaches the tail frame, the back lateral wall of mainframe is equipped with the headstock, inside alternating current servo motor and the speed reducer of being equipped with of headstock, the carrier frame pass through bearing flange rotate install in the preceding lateral wall of mainframe with between the lateral wall behind the tail frame.

As a further improvement of the above scheme, still install on the base jacking positioning mechanism, jacking positioning mechanism includes fourth electric cylinder and jacking frame, fourth electric cylinder bury to ground and flexible end with the lower terminal surface of jacking frame welds, the up end fixed mounting of jacking frame has a plurality of second bracket and second locating rack, each fixed mounting has the third down tube locating clip on the second locating rack.

As a further improvement of the scheme, four corners of the lower end face of the jacking frame are respectively fixed with a guide rod fixing seat, the bottom end of the guide rod fixing seat is fixedly provided with a cylindrical guide rod, and the bottom end of the cylindrical guide rod is fixedly provided with a supporting cylinder.

As the further improvement of above-mentioned scheme, the welding workstation of robot includes robot mounting panel, six welding robot, wire reel, send a ware and welder, the upper end of robot mounting panel is passed through the bolt fastening and is had six welding robot, six welding robot's big arm outer wall fixed mounting have the wire reel, six welding robot's elbow outer wall fixed mounting have send a ware, six welding robot's wrist movable mounting have welder.

As a further improvement of the scheme, the welding gun is further provided with a 3D vision camera, and a 3D vision guiding system is additionally arranged in the six-axis welding robot.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the pushing and positioning mechanisms are arranged on the left side surface and the right side surface of the carrier frame, the self-centering structure is arranged on the front side surface of the carrier frame, and the tail end positioning mechanism is arranged on the rear side surface of the carrier frame, so that six side surfaces of the standard knot can be positioned and fixed, the standard knot is not easy to loosen during welding, the accuracy of a welding position is ensured, the central positioning of a round pipe in the standard knot can be realized, and the market prospect is wide.

2. According to the utility model, the power box is arranged on the left side wall of the main machine base, the alternating current servo motor and the speed reducer are arranged in the power box, the output end of the alternating current servo motor is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the carrier frame through the transmission shaft, and the alternating current servo motor can be controlled to drive the carrier frame and the standard knot to rotate clockwise or anticlockwise by any angle, so that different positions on the standard knot can be conveniently welded, welding dead corners are avoided, and the welding is more flexible.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings 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 invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a first perspective of the present invention;

FIG. 2 is a perspective view of a second embodiment of the present invention;

FIG. 3 is a schematic perspective view of a robotic welding station of the present invention;

FIG. 4 is an assembly view of the carrier frame, the tail positioning mechanism and the self-centering structure of the present invention;

FIG. 5 is a disassembled view of the tail positioning mechanism of the present invention;

FIG. 6 is a schematic perspective view of a pushing and positioning mechanism according to the present invention;

FIG. 7 is an assembly schematic diagram of a standard knot welding positioner and a jacking positioning mechanism in the utility model;

FIG. 8 is a schematic perspective view of a lift positioning mechanism according to the present invention;

FIG. 9 is a disassembled view of the centering end of the self-centering structure of the present invention;

wherein, 1-robot welding workstation, 101-robot mounting plate, 102-six-axis welding robot, 103-wire reel, 104-wire feeder, 105-welding gun, 106-3D vision camera, 2-carrier frame, 201-front baffle, 202-back baffle, 203-shaping column, 204-carrier frame, 205-connecting shaft, 206-first bracket, 207-cylinder frame, 208-first electric cylinder, 209-first diagonal positioning clamp, 3-tail end positioning mechanism, 301-second electric cylinder, 302-round cutting sleeve, 303-push plate, 4-push positioning mechanism, 401-front fixing seat, 402-back fixing seat, 403-sliding seat, 404-cross beam, 405-third electric cylinder, 406-sliding rail, 407-a first positioning frame, 408-a connecting frame, 409-a second inclined rod positioning clamp, 5-a standard joint welding positioner, 501-a base, 502-a main machine base, 503-a tail machine base, 504-a power box, 6-a jacking positioning mechanism, 601-a fourth electric cylinder, 602-a jacking frame, 603-a second bracket, 604-a second positioning frame, 605-a third inclined rod positioning clamp, 606-a guide rod fixing base, 607-a cylindrical guide rod, 608-a support cylinder, 7-a welding control cabinet, 8-a positioner electric control box and 9-a self-centering structure.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the utility model and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The utility model is further described below with reference to the accompanying drawings.

A welding device for capital construction standard knot, as shown in figure 1 and figure 2, comprises a robot welding workstation 1, a standard knot welding positioner 5 and a carrier frame 2, welding control cabinet 7 and positioner electric cabinet 8, robot weldment work station 1 sets up between a pair of standard festival positioner 5, all install carrier frame 2 on a pair of standard festival positioner 5, robot weldment work station 1 and welding control cabinet 7 electric connection, standard festival positioner 5 and positioner electric cabinet 8 electric connection, the left and right sides of carrier frame 2 all install and promote positioning mechanism 4, the leading flank of carrier frame 2 is installed from centering structure 9, tail end positioning mechanism 3 is installed to the trailing flank of carrier frame 2, carrier frame 2 internally mounted waits to weld standard festival 10, still install jacking positioning mechanism 6 on the standard festival positioner 5.

As shown in fig. 1 and 3, the robot welding workstation 1 includes a robot mounting plate 101, six welding robots 102, a wire reel 103, a wire feeder 104, and a welding gun 105, the six welding robots 102 are fixed to the upper end of the robot mounting plate 101 through bolts, the wire reel 103 is fixedly installed on the outer wall of the large arm of the six welding robots 102, the wire feeder 104 is fixedly installed on the outer wall of the elbow of the six welding robots 102, the welding gun 105 is movably installed on the wrist of the six welding robots 102, a 3D vision camera 106 is further installed on the welding gun 105, and a 3D vision guidance system is additionally installed inside the six welding robots 102; wherein six welding robot 102's setting is convenient for weld a plurality of azimuths in space, and the welding wire that wire feeder 104 set up and can go up coiling with wire reel 103 constantly penetrates to welder 105, and welder 105 can melt the welding wire and realize the welding, and 3D vision camera 106 can shoot the welding environment of welder 105 in real time, and 3D vision bootstrap system can carry out the accurate adjustment to the welding position of welder 10.

As shown in fig. 1 and 4, the carrier frame 2 includes a front baffle 201, a rear baffle 202, shaping columns 203 and a carrier rack 204, the front baffle 201 and the rear baffle 202 are arranged in a front-rear opposite manner, and four shaping columns 203 are fixedly installed between the front baffle 201 and the rear baffle 202 along the circumferential direction, the arrangement of the shaping columns 203 makes the structure of the carrier frame 2 more firm, and the carrier rack 204 is fixedly installed at the bottom ends of the two shaping columns 203 located above through bolts; the outer side walls of the front baffle 201 and the rear baffle 202 are both provided with a connecting shaft 205, and the outer end of the connecting shaft 205 is mounted with a standard knot welding positioner 5 through a bearing flange; the bottom end of the carrier rack 204 is provided with a plurality of first brackets 206 and a cylinder frame 207, the cylinder frame 207 is provided with a first electric cylinder 208, the telescopic ends of the first electric cylinders 208 are provided with first inclined rod positioning clamps 209, and the first electric cylinder 208 is electrified to extend to drive the first inclined rod positioning clamps 209 to clamp the inclined rods in the standard knot 10 to be welded.

As shown in fig. 1, 4, 5 and 9, the tail end positioning mechanisms 3 are disposed at four corners of the surface of the rear baffle 202, each tail end positioning mechanism 3 includes a second electric cylinder 301 and a circular sleeve 302, the second electric cylinder 301 is fixed on the rear side wall of the rear baffle 202, the circular sleeve 302 is fixed on the front side wall of the rear baffle 202, a push plate 303 is fixed on the telescopic end of the second electric cylinder 301, and the push plate 303 is slidably mounted on the inner wall of the circular sleeve 302. From centering structure 9, from positioning mechanism includes the disc, round platform shape metal block and flange ring, the outer wall of round platform shape metal block encircles and is provided with three rubber expansion piece, steerable outside electric cylinder drives round platform shape metal block to treating the inside removal of the right-hand member mouth of welding pipe, because the lateral wall of round platform shape metal block is the toper, and under the restriction of steel wire retaining ring, thereby can expand the even propping of three rubber expansion piece all around, the equal integrated into one piece of outer wall of three rubber expansion piece has the arc rubber piece simultaneously, laminate separately to when treating welding pipe right port inner wall until three arc rubber piece, can realize treating the center pin location of welding pipe, very big reduction the dimensional error when pipe welding, and the rubber expansion piece can not cause the damage to the mouth of pipe and the pipe shaft body of pipe, centering.

As shown in fig. 1 and 6, the pushing and positioning mechanism 4 includes a front fixing seat 401, a rear fixing seat 402, a sliding seat 403, a cross beam 404 and a third electric cylinder 405, the bottom ends of the front fixing seat 401 and the rear fixing seat 402 are both fixedly provided with a sliding rail 406, the sliding seat 403 is slidably mounted on the sliding rail 406, the cross beam 404 is fixedly mounted between the front sliding seat 403 and the rear sliding seat 403, and the cross beam 404 is transversely pushed and pulled by the pair of third electric cylinders 405; the third electric cylinder 405 can push the beam 404 after being electrified, a plurality of first positioning frames 407 and connecting frames 408 are fixedly mounted on the beam 404 and face one side of the standard knot 10 to be welded, a second diagonal rod positioning clamp 409 is fixedly mounted on each first positioning frame 407, a longitudinal positioning block can be mounted on each connecting frame 408, namely, a vertical rod in the standard knot 10 to be welded can be positioned and fixed, and the second diagonal rod positioning clamp 409 fixedly mounted on each first positioning frame 407 can also position and fix diagonal rods on left and right sides in the standard knot 10 to be welded.

As shown in fig. 1 and 7, the standard knot welding positioner 5 comprises a base 501, a main machine base 502 and a tail machine base 503, wherein the base 501 is fixedly installed on the ground through screws, the upper end of the base 501 is respectively and fixedly installed with the main machine base 502 and the tail machine base 503, the rear side wall of the main machine base 502 is provided with a power box 504, an alternating current servo motor and a speed reducer are arranged inside the power box 504, a carrier frame 2 is rotatably installed between the front side wall of the main machine base 502 and the rear side wall of the tail machine base 503 through a bearing flange, the output end of the alternating current servo motor in the power box 504 is connected with the input end of the speed reducer, the output end of the speed reducer is connected with the carrier frame through a transmission shaft, further, the AC servo motor can be controlled to drive the carrier frame and the standard knot to rotate clockwise or counterclockwise by any angle, therefore, different positions on the standard knot can be conveniently welded, the welding dead angle is avoided, and the welding is more flexible.

As shown in fig. 1 and 8, a jacking positioning mechanism 6 is further installed on the base 501, the jacking positioning mechanism 6 includes a fourth electric cylinder 601 and a jacking frame 602, a telescopic end of the fourth electric cylinder 601 is welded to a lower end surface of the jacking frame 602, the fourth electric cylinder 601 is electrically extended to drive the jacking frame 602 to move upward, a plurality of second brackets 603 and second positioning frames 604 are fixedly installed on the upper end surface of the jacking frame 602, a third inclined rod positioning clamp 605 is fixedly installed on each second positioning frame 604, guide rod fixing seats 606 are fixed at four corners of the lower end surface of the jacking frame 602, a cylindrical guide rod 607 is fixed at a bottom end of each guide rod fixing seat 606, a support cylinder 608 is fixedly installed at a bottom end of the cylindrical guide rod 607, wherein, the supporting cylinder 608 and the fourth electric cylinder 601 are both buried to the ground without occupying space, and the four cylindrical guide rods 607 also play a balance role to prevent the lifting frame 602 from moving up and down and shifting.

As shown in fig. 1 and 2, the welding equipment of the capital construction standard knot can further comprise a consumable electrode argon arc welding machine, the consumable electrode argon arc welding machine is also electrically connected with the welding control cabinet 7, and wheels are arranged at the bottom end of the consumable electrode argon arc welding machine, so that the consumable electrode argon arc welding machine can be moved conveniently, and the welding equipment can be used for welding positions which cannot be welded by some robot welding workstations.

The using process of the utility model is as follows: firstly, a positioner electric cabinet 8 is used for controlling a standard knot welding positioner 5 to drive a carrier frame 2 to rotate until two upper shaping columns 203 rotate to the lower part and are in a horizontal state, at the moment, a first bracket 206 and a first diagonal rod positioning clamp 209 which are arranged on a carrier frame 204 are arranged upwards, a standard knot 10 to be welded is hoisted into the carrier frame 2 through hoisting equipment, and the welding standard knot 10 is supported by the first bracket 206 and the first diagonal rod positioning clamp 209; then, a pushing positioning mechanism 4 installed on the left side surface and the right side surface of a carrier frame 2, a self-centering structure 9 installed on the front side surface, and a tail end positioning mechanism 3 installed on the back side surface are used for positioning and fixing a welding standard joint 1, then a standard joint welding positioner 5 is controlled through a positioner electric cabinet 8 to drive the carrier frame 2 to rotate 180 degrees clockwise, at the moment, a first bracket 206 and a first diagonal rod positioning clamp 209 installed on a carrier frame 204 are both arranged downwards, a jacking positioning mechanism 6 is further installed on a base 501, a fourth electric cylinder 601 is electrified and extended to drive a jacking frame 602 to move upwards, a plurality of second brackets 603 and second positioning frames 604 are fixedly installed on the upper end surface of the jacking frame 602, and therefore the lower side surface of a standard joint 10 to be welded can be positioned and fixed. Therefore, the welding equipment for the capital construction standard knot can position and fix six side surfaces of the standard knot, so that the standard knot is not easy to loosen during welding, the accuracy of a welding position is ensured, the central positioning of a round pipe in the standard knot can be realized, and the market prospect is wide.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a welding equipment of capital construction standard festival, includes robot weldment work station (1), standard festival positioner (5), carrier frame (2), welding control cabinet (7) and positioner electric cabinet (8), robot weldment work station (1) sets up in a pair between standard festival positioner (5), it is a pair all install on standard festival positioner (5) carrier frame (2), robot weldment work station (1) with welding control cabinet (7) electric connection, standard festival positioner (5) with positioner electric cabinet (8) electric connection, its characterized in that: the left and right lateral surfaces of the carrier frame (2) are provided with pushing and positioning mechanisms (4), the front side surface of the carrier frame (2) is provided with a self-centering structure (9), the rear side surface of the carrier frame (2) is provided with a tail end positioning mechanism (3), the carrier frame (2) is internally provided with a standard joint (10) to be welded, and the standard joint welding positioner (5) is further provided with a jacking and positioning mechanism (6).

2. A welding apparatus for capital construction standard knot according to claim 1, wherein: the carrier frame (2) comprises a front baffle (201), a rear baffle (202), shaping columns (203) and a carrier frame (204), wherein the front baffle (201) and the rear baffle (202) are arranged in a front-rear opposite mode, four shaping columns (203) are fixedly installed between the front baffle (201) and the rear baffle (202) along the circumferential direction, and the carrier frame (204) is fixedly installed at the bottom ends of the two shaping columns (203) above the front baffle and the rear baffle through bolts;

connecting shafts (205) are installed on the outer side walls of the front baffle (201) and the rear baffle (202), and the outer ends of the connecting shafts (205) are installed on the standard knot welding positioner (5) through bearing flanges.

3. A welding apparatus for capital construction standard knot according to claim 2, wherein: the bottom end of the luggage carrier (204) is provided with a plurality of first brackets (206) and a cylinder frame (207), the cylinder frame (207) is provided with a first electric cylinder (208), and the telescopic ends of the first electric cylinder (208) are provided with first diagonal rod positioning clamps (209).

4. A welding apparatus for capital construction standard knot according to claim 2, wherein: four corners on the surface of backplate (202) all are provided with tail end positioning mechanism (3), tail end positioning mechanism (3) include second electric cylinder (301) and circle cutting ferrule (302), second electric cylinder (301) are fixed in the back wall of backplate (202), circle cutting ferrule (302) are fixed in the preceding lateral wall of backplate (202), the flexible end of second electric cylinder (301) is fixed with push pedal (303), push pedal (303) slidable mounting in circle cutting ferrule (302) inner wall.

5. A welding apparatus for capital construction standard knot according to claim 1, wherein: the pushing and positioning mechanism (4) comprises a front fixing seat (401), a rear fixing seat (402), sliding seats (403), a cross beam (404) and a third electric cylinder (405), sliding rails (406) are fixedly mounted at the bottom ends of the front fixing seat (401) and the rear fixing seat (402), the sliding seats (403) are slidably mounted on the sliding rails (406), the cross beam (404) is fixedly mounted between the front sliding seat and the rear sliding seat (403), and the cross beam (404) is transversely pushed and pulled by the pair of third electric cylinders (405);

a plurality of first positioning frames (407) and connecting frames (408) are fixedly mounted on one side, facing the standard joint (10) to be welded, of the cross beam (404), and a second inclined rod positioning clamp (409) is fixedly mounted on each first positioning frame (407).

6. A welding apparatus for capital construction standard knot according to claim 1, wherein: standard festival positioner (5) includes base (501), host computer seat (502) and tail frame (503), screw fixed mounting is passed through in base (501) subaerial, the upper end difference fixed mounting of base (501) has host computer seat (502) reaches tail frame (503), the back lateral wall of host computer seat (502) is equipped with headstock (504), headstock (504) inside is equipped with exchanges servo motor and speed reducer, carrier frame (2) rotate through the bearing flange install in the preceding lateral wall of host computer seat (502) with between tail frame (503) the back lateral wall.

7. A welding apparatus for capital construction standard knot according to claim 6, wherein: still install on base (501) jacking positioning mechanism (6), jacking positioning mechanism (6) include fourth electric cylinder (601) and jacking frame (602), fourth electric cylinder (601) bury to ground and flexible end with the lower terminal surface of jacking frame (602) welds, the up end fixed mounting of jacking frame (602) has a plurality of second bracket (603) and second locating rack (604), each fixed mounting has third down tube locating clip (605) on second locating rack (604).

8. A welding apparatus for capital construction standard knot according to claim 7, wherein: four corners of the lower end face of the jacking frame (602) are respectively fixed with a guide rod fixing seat (606), the bottom end of the guide rod fixing seat (606) is fixed with a cylindrical guide rod (607), and the bottom end of the cylindrical guide rod (607) is fixedly provided with a supporting cylinder (608).

9. A welding apparatus for capital construction standard knot according to claim 1, wherein: robot welding workstation (1) includes robot mounting panel (101), six welding robot (102), wire reel (103), send a ware (104) and welder (105), the upper end of robot mounting panel (101) is fixed with through the bolt six welding robot (102), the forearm outer wall fixed mounting of six welding robot (102) has wire reel (103), the elbow outer wall fixed mounting of six welding robot (102) has send a ware (104), the wrist movable mounting of six welding robot (102) has welder (105).

10. A welding apparatus for capital construction standard knot as defined in claim 9 wherein: the welding gun (105) is also provided with a 3D vision camera (106), and a 3D vision guiding system is additionally arranged in the six-axis welding robot (102).