CN216656681U - Welding structure of double welding guns - Google Patents

Abstract

The utility model provides a welding structure of double welding guns, which comprises a base; the weldment clamp is arranged on the base and used for fixing and bearing a weldment; locate on the base, a pair of guide welding set of weldment anchor clamps both sides, guide welding set includes: a first driving device for driving the second driving device to horizontally move along a first direction; the second driving device drives the third driving device to vertically lift; the third driving device drives the welding gun assembly to horizontally move along a second direction perpendicular to the first direction; a weld gun assembly, comprising: the welding gun is arranged on the third driving device and comprises a welding gun main body and a welding gun head; the welding gun main body is externally connected with a first conveying pipe communicated to a welding gun port of the welding gun head, and the welding gun head is provided with a heating device; and the feeding support is arranged on the welding gun main body and is used for fixedly installing a second conveying pipe externally connected to a welding gun opening. This welding structure of two welder has a pair of welder of taking three translations, a fine setting degree of freedom and a rotational degree of freedom in weldment both sides cooperation, and welding efficiency is high.

Description

Welding structure of double welding guns

Technical Field

The utility model belongs to the technical field of welding, and particularly relates to a welding structure of double welding guns, which is particularly suitable for elbow welding.

Background

At present, a plurality of segmented pipe bodies are welded and processed to form a continuous bent pipe whole body, automatic or manual spot welding splicing and shaping are carried out between the segmented pipe bodies through jig clamping, then the segmented pipe bodies are integrally hoisted to be fixed by a clamp of a welding structure, and welding seams between the segmented pipe bodies are continuously and automatically welded through a welding gun of the welding structure.

At present, the welding structure for the tuyere bent pipe on the market only has one group of welding gun head assemblies, the freedom degree of the adjustment of the space coordinate of the welding gun head is limited, and at most, the three freedom degrees exist, so that the welding processing efficiency of the large tuyere bent pipe formed by a plurality of large segmented pipes is lower by utilizing the traditional welding structure.

Therefore, the low welding efficiency of the current welding machine for tuyere stock bending is a technical problem to be solved in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a welding structure of double welding guns, which is particularly suitable for elbow welding, and aims to solve the technical problem of low welding efficiency of the existing welding machine for machining the tuyere elbow.

In order to solve the problems, the utility model adopts the technical scheme that: provided is a welding structure of a dual welding gun, including: a base;

the weldment clamp is arranged on the base and used for fixing and bearing a weldment;

locate on the base, a pair of guide welding set of weldment anchor clamps both sides, guide welding set includes:

a first driving device for driving the second driving device to horizontally move along a first direction;

the second driving device drives the third driving device to vertically lift;

the third driving device drives the welding gun assembly to horizontally move along a second direction perpendicular to the first direction;

a welding gun assembly comprising:

the welding gun is arranged on the third driving device and comprises a welding gun main body and a welding gun head; the welding gun main body is externally connected with a first conveying pipe communicated to a welding gun port of the welding gun head, and the welding gun head is provided with a heating device;

and the feeding support is arranged on the welding gun main body and is used for fixedly installing a second conveying pipe externally connected to a welding gun opening.

Further, the first driving device is disposed in the inner space of the base, and the second driving device includes:

the vertical column is driven by the first driving device to move along a first direction and vertically extend upwards out of the base, the second driving unit is arranged on the vertical column, and the second transmission mechanism is driven by the second driving unit;

the third driving device includes:

the second transmission mechanism drives the transfer support to vertically lift along the upright column, the third driving unit is arranged on the transfer support, and the third transmission mechanism is driven by the third driving unit;

the welding gun subassembly still includes:

and the axial direction of the welding arm is the second direction, the welding arm is driven by the third transmission mechanism to horizontally move along the second direction, and a welding gun is connected to the welding arm.

Further, the method also comprises the following steps:

and a fourth driving device for driving the welding gun to rotate around a third direction parallel to the first direction and relative to the welding arm.

Further, still include:

and the fifth driving device is arranged on the transfer support and used for driving the welding gun assembly to horizontally move along a fourth direction parallel to the first direction.

Further, the first driving device includes:

a first driving unit installed in the inner space of the base, a first transmission mechanism driven by the first driving unit, the first transmission mechanism including: the first screw-nut mechanism is driven by the first driving unit, and the upright post is arranged on a first moving piece of a first screw of the first screw-nut mechanism;

the stand includes: the first moving part is provided with a vertical column bottom plate, a vertical column top plate and a vertical column side plate, wherein the vertical column bottom plate is arranged on the first moving part;

the second drive unit is installed in the stand roof, and second drive mechanism includes: the second screw-nut mechanism is driven by the second driving unit and is arranged in the inner accommodating space of the upright post, and the first guide rail is arranged on the inner side of the side plate of the upright post; the transferring support is arranged on a second moving piece of a second lead screw of the second lead screw nut mechanism, and the transferring support is driven by the second moving piece to vertically lift along the first guide rail.

Further, the second lead screw-nut mechanism further includes: a linear bearing spaced from the second moving member;

move and carry support includes: the support base is arranged on the second moving part, the support top seat is arranged on the linear bearing, the support side plate is connected between the support top seat and the support base, and a first sliding block matched with the first guide rail is arranged on the outer side of the support side plate.

Furthermore, the support top seat penetrates through the first yielding port of the corresponding upright post side plate along the direction parallel to the first direction, horizontally extends to one side far away from the second screw rod and forms an extending seat;

the third transmission mechanism includes:

the third driving unit is arranged on the bracket base, a third driving motor is adopted as a driving piece of the third driving unit, and a first driving wheel is arranged at the tail end of an output shaft of the third driving motor;

the second guide rail is arranged at the top end of the extension seat of the bracket top seat along a second direction; the welding arm is arranged on the second guide rail through a second sliding block at one end of the welding arm, and a rack is arranged at the top end of the second sliding block;

a pair of corresponding bearing supports are respectively arranged at the top ends of the extending seats at the two sides of the second guide rail on the support top seat, a first rotating shaft is horizontally connected between the pair of bearing supports, a driving gear matched with the rack is installed in the middle of the first rotating shaft, and one end of the first rotating shaft, which is close to the second lead screw, extends to the position right above the first driving wheel and is provided with a first driven wheel;

the first driving wheel drives the first driven wheel through the first synchronous belt, the first driven wheel drives the first rotating shaft and the driving gear, the driving gear drives the rack, and the rack drives the second sliding block and the welding arm to horizontally move along the second guide rail.

Furthermore, the axial direction of the weldment is fixed in a vertical surface by the weldment clamp, the vertical surface is parallel to the other vertical surface where the first direction is located, and the welding arm drives the welding gun to horizontally move along a second direction perpendicular to the vertical surface where the axial direction of the weldment is located so as to weld the weldment;

the fourth driving device includes:

the fourth driving unit is arranged on the welding arm, a fourth driving motor is adopted as a driving piece of the fourth driving unit, and a second driving wheel is arranged at the tail end of an output shaft of the fourth driving motor;

a second rotating shaft rotatably penetrates through the welding arm, the axial direction of the second rotating shaft is parallel to the first direction, a second driven wheel is arranged at one end of the second rotating shaft, a welding gun chuck is fixedly installed at the other end of the second rotating shaft, and a welding gun body is clamped on the welding gun chuck;

the second driving wheel drives a second driven wheel through a second synchronous belt, and the second driven wheel drives a second rotating shaft and the welding gun main body to rotate relative to the welding arm.

Further, the second guide rail is mounted on a welding gun mounting seat, and the welding gun mounting seat is mounted on the extension seat;

the bearing support far away from the second screw nut mechanism is arranged at one end of the extension seat far away from the second screw, and extends downwards to the lower part of the extension seat to form a motor mounting plate;

the fifth driving device includes:

install in the fifth drive unit of motor mounting panel, by the fifth drive mechanism of fifth drive unit drive, this fifth drive mechanism includes: the third screw-nut mechanism is driven by the fifth driving unit and is arranged on the screw seat at the bottom end of the extension seat, a third screw of the third screw-nut mechanism is connected to the screw seat, and the fourth direction is the axial direction of the third screw;

the support riser is installed to welder mount pad bottom, and this support riser passes the second of extending the seat downwards and steps down a mouthful fixed connection in installing in the third motion piece of third lead screw, and welder mount pad bottom is equipped with the guide block that matches with the seat that extends, and the support riser is driven by the third motion piece to drive guide block and welder mount pad along extending seat horizontal migration.

Preferably, the first delivery pipe is an air supply pipe or a light guide pipe communicated to the mouth of the welding gun;

the second conveying pipe is a welding material pipe or a cooling water pipe which extends to the mouth of the welding gun.

Compared with the prior art, the welding structure of the double welding guns has the following beneficial effects:

the welding structure of the double welding guns provided by the utility model has the advantages that the pair of welding guiding devices at the two sides of the weldment clamp respectively guide the pair of welding gun components to simultaneously weld the welding seams of the weldment such as the tuyere bent pipe in the opposite two side directions of the bent pipe to be welded, and the welding arm of each welding gun component and the welding gun thereof have three translational freedom degrees of X (a horizontal first direction parallel to a vertical plane where the axial direction of the weldment is located), Y (a horizontal second direction perpendicular to the vertical plane where the axial direction of the weldment is located) and Z (a vertical direction) in directions which are mutually perpendicular in a three-dimensional space coordinate, and a weld bead fine adjustment freedom degree of X' (a fourth horizontal direction parallel to the X direction) in one direction, the welding gun head has a rotational degree of freedom in one direction A (rotating on a vertical plane by taking a horizontal third direction parallel to the X direction as a rotating shaft), and the welding efficiency of continuous welding seams among the segmented tube bodies of the tuyere elbow is greatly improved.

In addition, the welding structure of the double welding guns provided by the utility model can use the cooling water tank and the cooling water pipe to match with the solder conveying device, the gas transmission device and the welding gun assembly to carry out argon arc welding or carbon dioxide welding, or can be externally connected with a laser welding machine and a light pipe matching welding structure thereof to carry out laser welding.

Drawings

FIG. 1 is a first schematic view of the general assembly structure of the welding structure of the double welding guns provided by the utility model;

FIG. 2 is a schematic view of the overall assembly structure of the welding structure of the dual welding gun according to the present invention;

FIG. 3 is a third schematic view of the overall assembly structure of the welding structure of the dual welding gun according to the present invention;

FIG. 4 is a first schematic view of a partial assembly structure of a welding structure of a dual welding gun according to the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is a partially enlarged schematic view of FIG. 1;

FIG. 7 is a second schematic view of a partial assembly structure of the welding structure of the dual welding torch according to the present invention;

FIG. 8 is a partially enlarged schematic view of FIG. 2;

FIG. 9 is a third schematic view of a partially assembled structure of a welding structure of a dual welding gun according to the present invention;

FIG. 10 is a fourth schematic view of a partial assembly structure of the welding structure of the dual welding gun according to the present invention;

FIG. 11 is an enlarged view of a portion of FIG. 4;

fig. 12 is a schematic view of a partial assembly structure of the welding structure of the double welding gun according to the present invention.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a base; 11-a cooling water tank; 12-a base plate; 13-side plate; 14-a top plate; 141-relief holes; 2-weldment clamp; 21-tuyere stock pipe; 3-a first drive; 31-a first drive motor; 311-gear mounting; 312 — drive cylindrical gear; 313-installing a vertical plate; 314-driven spur gear; 315-first conical gear; 32-a first lead screw nut mechanism; 321-a first lead screw; 322-a first motion piece; 323-a second conical gear; 324-a bearing hanger; 325-shaft coupling; 4-a second drive; 41-upright post; 411-column top plate; 412-column side panels; 4121-a first guide rail; 413-a first escape port; 42-a second drive motor; 43-a second lead screw nut mechanism; 431-a second lead screw; 432-a second motion piece; 433-linear bearings; 5-a third drive device; 51-a transfer support; 511-a stand base; 512-bracket footstock; 5121-an extension seat; 5122-bearing support; 5123-a first shaft; 5124-drive gear; 5125-first driven wheel; 5126-second escape port; 5127-a reinforcing plate; 513-bracket side plates; 5131-a first slider; 514-a third drive motor; 5141-a first capstan; 5142-first timing belt; 52-a second guide rail; 53-welding gun mounting seat; 531-supporting a riser; 532-a guide block; 54-motor mounting plate; 6-a welding gun assembly; 61-a welding gun; 611-a torch body; 612-a welding gun head; 613-industrial cameras; 614-feeding support; 62-a welding arm; 621-a second slider; 622-rack; 63-a first delivery duct; 64-a second delivery duct; 7-a fourth drive; 71-a fourth drive motor; 711-motor mount; 72-a second shaft; 721-a second driven wheel; 7211-a second synchronous belt; 722-a torch chuck; 8-a fifth drive; 81-a fifth drive motor; 82-a third lead screw nut mechanism; 821-third lead screw; 83-screw seat; 9-an electric control cabinet; 91-signal harness.

Wherein, other labels in the figure:

x-a first direction; y-a second direction; the Z-vertical direction; a-a third direction; x' -a fourth direction.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the present invention will be further described in detail with reference to fig. 1 to 12 and embodiments.

Referring to fig. 1 to 4, the welding structure of the dual welding gun 61 according to the present invention includes: the base 1 comprises a base frame structure consisting of a bottom plate 12, a side plate 13 and a top plate 14, wherein the base frame structure is provided with a hollow internal installation space. The weldment clamp 2 is arranged on the base 1 and used for fixing and bearing a weldment; the weldment clamp 2 is preferably arranged in the middle of the top working surface of the top plate 14 of the base 1, the weldment is preferably an air port bent pipe 21, the air port bent pipe 21 is a continuous air port bent pipe 21 whole formed by welding and processing a plurality of segmented pipe bodies, the segmented pipe bodies are firstly subjected to automatic or manual spot welding and splicing and shaping through fixture clamping, then are integrally hoisted to be fixed by the weldment clamp 2 of the welding structure provided by the utility model, and welding seams between the segmented pipe bodies are continuously and automatically welded through a welding gun 61 of the welding structure. The tuyere stock 21 preferably has an inner diameter of 100, 125, 150, 200, 250 and 300 mm. The tuyere stock 21 of the part to be welded preferably comprises four segmented pipe bodies, and the adjacent segmented pipe bodies are fixed in advance through spot welding, so that the four segmented pipe bodies form a continuous tuyere stock 21 as a whole, and a welding gun 61 of the welding structure provided by the application is used for continuously and automatically welding the welding seams between the adjacent segmented pipe bodies in a numerical control manner. The angle of the tuyere stock 21 is preferably 90 degrees or 45 degrees, and the clamping manner of the welding jig may be to clamp both ends of the tuyere stock 21, or to clamp only one end of the tuyere stock 21.

The welding structure of the double welding gun 61 provided by the utility model also comprises a pair of guiding welding devices which are arranged on the base 1 and at two sides of the weldment clamp 2, and each guiding welding device comprises: a first driving device 3 that drives the second driving device 4 to move horizontally in a first direction (i.e., X direction); the second driving device 4 drives the third driving device 5 to vertically lift (namely, in the Z direction); the third driving device 5 drives the welding gun assembly 6 to horizontally move along a second direction (namely Y direction) which is perpendicular to the first direction; a welding gun assembly 6, comprising: a welding torch 61 mounted on the third driving device 5, the welding torch 61 including a torch body 611 and a torch head 612; the rear end of the welding gun main body 611 is externally connected with a first conveying pipe 63 which is communicated to a welding gun port (not shown) of the welding gun head 612 through a conveying channel inside the welding gun main body 611, and the welding gun head is provided with a heating device; and the feeding bracket 614 is arranged on the welding gun main body 611 and is used for fixedly mounting the second conveying pipe 64 externally connected to the welding gun mouth. The welding gun head 612 is further sleeved with a mounting base for mounting an industrial camera 613, so as to shoot the movement track and the original point of the welding gun mouth of the welding gun head 612 and feed back image data to the control cabinet, and the control cabinet performs original point correction and movement track programming control according to the real-time movement track of the welding gun mouth and the actual welding track of a welding piece to be welded, such as the tuyere bent pipe 21.

Referring to fig. 4-5, as an embodiment, the first driving device 3 is disposed in the inner space of the base 1, and the first driving device 3 includes: a first driving unit, preferably a first driving motor 31, installed in the inner space of the base 1, wherein the first driving motor 31 is preferably a three-phase hybrid stepping motor, and may also be a servo motor or other type of motor, and is installed on the bottom plate 12 of the base 1. The first driving motor 31 preferably has an output shaft extending vertically upward toward the top plate 14 of the base 1, and a gear mounting seat 311 is mounted on the top end of the first driving motor 31. A first transmission mechanism driven by the first drive unit, the first transmission mechanism comprising: a first lead screw-nut mechanism 32 driven by the first drive unit. As another example, the first driving unit may be a driving unit such as an air cylinder, an oil cylinder, or an electric cylinder, and the first transmission mechanism may be a linear transmission mechanism such as a rack and pinion 622 or a gear timing belt.

As a preferred embodiment, the first driving motor 31 drives a gear set through a driving cylindrical gear 312 on its output shaft, the gear set including: install the gear bearing frame on gear mount 311, this gear bearing frame is connected in the roof 14 bottom of base 1 through installation riser 313, a vertical gear axle passes the gear bearing frame from the bearing mount top along vertical direction and extends to bearing mount below, driven cylindrical gear 314 with initiative cylindrical gear 312 complex is installed to the upper end of this vertical gear axle, first conical gear 315 is installed to the lower extreme of this vertical gear axle, driven cylindrical gear 314 of initiative cylindrical gear 312 drive through a driving motor 31, driven cylindrical gear 314 drives vertical gear axle and first conical gear 315 around vertical gear axle along vertical direction's rotation axis synchronous revolution. The first lead screws 321 of the first lead screw nut mechanism 32 horizontally penetrate through a plurality of bearing racks 324 which extend downwards from the top plate 14 of the base 1 along the first direction, one end of each bearing rack is provided with a second conical gear 323 matched with the first conical gear 315, and the second conical gear 323 is driven by the first conical gear 315 to drive the first lever to rotate, so that the first lead screws 321 are driven to horizontally move along the first direction. Through the gear set, the speed reduction effect on the rotation speed of the second conical gear 323, namely the first lead screw 321, and the nut movement speed thereof can be realized, and the forward and reverse rotation conversion cooperation with the first driving motor 31 can be realized, so that the conversion control on the rotation direction of the first lead screw 321 and the nut movement direction thereof can be realized. In one embodiment, the second conical gear 323 is mounted on a downwardly extending bearing bracket 324 at the bottom end of the gear mounting base 311 via a horizontal gear shaft thereof, one end of the first lead screw 321 near the second conical gear 323 is mounted on the downwardly extending bearing bracket 324 at the bottom end of the top plate 14 of the base 1, and the horizontal gear shaft and the first lead screw 321 are connected together via a coupling 325 between the two bearing brackets 324 arranged along the first direction.

Referring to fig. 6-8, in the present embodiment, the second driving device 4 includes: the upright post 41 which is driven by the first driving device 3 to move along the first direction and vertically upwards passes through the abdicating hole 141 of the top plate 14 of the base 1 to extend out of the base 1, the upright post 41 is arranged on a first moving piece 322 of the first lead-screw-nut mechanism 32, which is arranged on a nut (not shown in the figure) of the first lead-screw-nut mechanism, and moves horizontally along the first direction along with the nut of the first lead-screw-nut mechanism 32; a second driving unit provided on the column 41, and a second transmission mechanism driven by the second driving unit. As an example, the column 41 includes: a bottom plate 12 of the upright 41 mounted on the first moving member 322, an upright top plate 411 arranged opposite to the bottom plate 12 of the upright 41, and four upright side plates 412 connected between the bottom plate 12 of the upright 41 and the upright top plate 411 in the vertical direction, wherein an inner accommodating space of the upright 41 is formed among the upright top plate 411, the upright side plates 412 and the bottom plate 12 of the upright 41. The second driving unit is mounted on the top plate 411, and is preferably a second driving motor 42, and the second driving motor 42 is preferably a stepping motor, and may also be a servo motor or other type of motor. The output shaft of the second driving motor 42 extends vertically downward toward the top plate 14 of the base 1. The second transmission mechanism includes: the second screw nut mechanism 43 driven by the second driving unit and mounted in the internal receiving space of the column 41, and the first guide rail 4121 provided inside the column side plate 412 in the vertical direction are preferably provided inside a pair of column side plates 412 provided on both sides of the second screw 431 of the second screw nut mechanism 43 in a direction parallel to the second direction at an interval relatively vertically. The second moving member 432 is mounted on the nut of the second screw-nut mechanism 43, the transfer bracket 51 is mounted on the second moving member 432 of the second screw-nut mechanism 43, and the transfer bracket 51 is driven by the second moving member 432 to vertically move up and down along the second screw 431 and the first guide rail 4121. As another example, the second driving unit may be a driving unit such as an air cylinder, an oil cylinder, or an electric cylinder, and the second transmission mechanism may be a linear transmission mechanism such as a rack and pinion 622 or a gear timing belt.

As a preferred embodiment, the second lead screw-nut mechanism 43 further includes: a linear bearing 433 provided on the second screw 431 above the second moving part 432 at a distance from the second moving part 432; the transfer rack 51 includes: the bracket comprises a bracket base 511 mounted on the second moving part 432, a bracket top base 512 mounted on the linear bearing 433, a bracket side plate 513 connected between the bracket top base 512 and the bracket base 511, and a first sliding block 5131 matched with the first guide rail 4121 is arranged on the outer side of a pair of bracket side plates 513 vertically arranged on two sides of the second screw rod 431 along the direction parallel to the second direction at intervals.

Referring to fig. 6-10, in the present embodiment, the third driving device 5 includes: a transfer support 51 vertically lifted and lowered along the column 41 by the second transmission mechanism, a third driving unit provided on the transfer support 51, and a third transmission mechanism driven by the third driving unit. The welding gun assembly 6 further comprises: the axial direction of the welding arm 62 is the second direction, the welding arm 62 is driven by the third transmission mechanism to move horizontally along the second direction, and a welding gun 61 is connected to the welding arm 62. In a preferred embodiment, the bracket top seat 512 passes through the first relief opening 413 of the corresponding upright side plate 412 along a direction parallel to the first direction, and horizontally extends to a side away from the second lead screw nut mechanism 43 to form an extending seat 5121. The third transmission mechanism includes: and a third driving unit mounted on the bracket base 511, the third driving unit using a third driving motor 514 as a driving member, preferably mounted between a pair of bracket side plates 513 relatively vertically arranged on both sides of the second lead screw 431 at an interval in a direction parallel to the second direction and the bracket bottom plate 12, i.e., one of the bracket side plates 513 vertically arranged in the direction parallel to the second direction, the third driving unit preferably being a third driving motor 514, the third driving motor 514 preferably being a stepping motor, and also being a servo motor or other type of motor. An output shaft of the third driving motor 514 extends in a direction parallel to the first direction toward the second lead screw 431, and a first driving wheel 5141 is disposed at a terminal of the output shaft of the third driving motor 514 close to the second lead screw 431.

In this embodiment, the method further includes: a second guide rail 52 mounted to a top end of the extension seat 5121 of the bracket top seat 512 in a direction parallel to the second direction; the welding arm 62 is mounted on the second guide rail 52 by a second slider 621 mounted at a bottom end thereof, and a rack 622 is mounted at a top end of the second slider 621. The top ends of the extension seats 5121 of the bracket top seat 512 on both sides of the second guide rail 52 are respectively provided with a pair of vertically corresponding bearing supports 5122, the first rotating shaft 5123 is horizontally connected between the bearings of the pair of bearing supports 5122, the middle part of the first rotating shaft 5123 between the pair of bearing supports 5122 is provided with a driving gear 5124 matched with the rack 622 on the welding arm 62, and one end of the first rotating shaft 5123 close to the second lead screw 431 extends to the position right above the first driving wheel 5141 and is provided with a first driven wheel 5125. As an embodiment, a reinforcing plate 5127 is further connected between the pair of bearing brackets 5122. The first driving wheel 5141 drives the first driven wheel 5125 through the first synchronous belt 5142, the first driven wheel 5125 drives the first rotating shaft 5123 and the driving gear 5124, the driving gear 5124 drives the rack 622, and the rack 622 drives the second slider 621 and the welding arm 62 to move horizontally along the second guide rail 52. As another example, the third driving unit may be a driving unit such as an air cylinder, an oil cylinder, or an electric cylinder, and the third transmission mechanism may be a linear transmission mechanism such as a rack and pinion 622 or a gear timing belt.

As a preferred embodiment, the axial direction of the weldment such as the tuyere stock 21 is fixed by the weldment clamp 2 in a vertical plane parallel to another vertical plane in which the first direction is located, and the welding arm 62 of the welding guiding device on one side of the weldment clamp 2 in the second direction drives the welding gun 61 to horizontally move in the second direction perpendicular to the vertical plane in which the axial direction of the weldment, so that the weldment faces the half-side weld of the welding gun 61 of the welding guiding device on the one side and is welded by the welding gun 61 on the one side; meanwhile, the welding arm 62 of the other guided welding device on the other side of the weldment clamp 2 in the second direction drives the welding gun 61 of the other guided welding device to horizontally move in the second direction perpendicular to the vertical plane where the axial direction of the weldment is located, so that the weldment faces a half-edge welding seam of the welding gun 61 of the other guided welding device on the other side and is welded by the welding gun 61 on the other side.

Referring to fig. 6-10, as a preferred embodiment, the welding structure of the dual welding gun 61 of the present invention further includes: and a fourth driving device 7 for driving the welding torch 61 to rotate relative to the welding arm 62 about a third direction (i.e., a direction a) parallel to the first direction. As an embodiment, the fourth driving device 7 comprises: a fourth drive unit mounted on the welding arm 62, the fourth drive unit using a fourth drive motor 71 as a driving member, the fourth drive motor 71 preferably being a speed reduction motor, and also being a servo motor, a stepping motor or another type of motor. The fourth driving motor 71 is preferably attached to a side end surface of the welding arm 62 through a motor mount 711, and a second capstan (not shown) is provided at a tip end of an output shaft of the fourth driving motor 71. The welding device further comprises a second rotating shaft 72 which is arranged at an interval with the fourth driving motor 71 and rotatably arranged on the welding arm 62 in a penetrating manner, the second rotating shaft 72 is preferably arranged at the tail end of the welding arm 62 far away from the second lead screw 431, and the axial direction of the second rotating shaft 72 is a third direction; a second driven wheel 721 is provided at one end of the second rotating shaft 72, a welding torch holder 722 is fixedly mounted at the other end of the second rotating shaft 72, and the welding torch body 611 is clamped to the welding torch holder 722. The second driving wheel drives the second driven wheel 721 through the second synchronous belt 7211, and the second driven wheel 721 drives the second rotating shaft 72 and the welding gun main body 611 to rotate relative to the welding arm 62, so that the welding gun head 612 of the welding gun 61 can rotate on a vertical surface in the axial direction of the second rotating shaft 72, i.e., in the third direction, to continuously and automatically weld curved surface weldments with curved outer contours on the vertical surface, such as segmented pipes of the tuyere stock 21.

In a preferred embodiment, the second driven wheel 721 and the second rotating shaft 72 are preferably arranged at such an angle that the axial direction of the welding gun head 612 of the welding gun 61 is from vertical upward to vertical downward, namely, the welding torch head 612 is driven to rotate within 180 degrees around the vertical plane where the welding torch head is axially located, the rotating track is a semicircular arc, the welding gun head 612 of the welding device can be guided by the welding fixture along the rotation track of the semicircular arc at one side of the second direction, the welding gun head is driven by the second driving device 4 to vertically lift, the third driving device 5 drives the welding gun 61 to horizontally move along the second direction, so that the welding gun 61 moves from the upper part of a welding piece such as the tuyere stock 21 (the welding gun head 612 downwards faces to the welding seam between the segmented pipe bodies of the tuyere stock 21), the welding gun head 612 moves along the welding seam on one side of the tuyere bent pipe 21 in the second direction and rotates around the third direction, and finally moves to the position below the tuyere bent pipe 21 (the welding gun head 612 faces upwards to the welding seam); the welding torch 61 may be moved from below to above the tuyere stock 21. In addition, the welding torch 61 is driven by the first driving device 3 to move in the first direction to switch the bead (second direction) of the welding torch 61 to weld an adjacent bead; similarly, the welding torch head 612 of the welding device guided by the welding fixture on the other side in the second direction can move along the rotation track of the semicircular arc, and the welding torch head 61 can vertically lift under the drive of the second driving device 4 and horizontally move along the second direction under the drive of the third driving device 5, so that the welding torch 61 can rotate around the third direction from the upper side of the welding part such as the tuyere bent pipe 21 through the movement of one edge of the welding torch head 612 along the welding seam on the other side in the second direction of the tuyere bent pipe 21, and finally move to the lower side of the tuyere bent pipe 21, and the welding torch 61 can also move to the upper side from the lower side of the tuyere bent pipe 21; that is, the half bead of the welding torch 61 of the pilot welding device facing the workpiece on one side in the second direction is welded by the welding torch 61 on the one side, and the half bead of the welding torch 61 of the pilot welding device facing the other side in the second direction is welded by the welding torch 61 on the other side.

As another embodiment, the output shaft of the fourth driving motor 71 is disposed adjacent to the second rotating shaft 72, and the second driving pulley at the end of the output shaft of the fourth driving motor 71 directly drives the second driven pulley 721 at one end of the second rotating shaft 72.

Referring to fig. 7-9 and 11, as a preferred embodiment, the welding structure of the dual welding gun 61 of the present invention further includes: and a fifth driving device 8 disposed on the transfer support 51 for driving the welding gun assembly 6 to move horizontally in a fourth direction (i.e., X' direction) parallel to the first direction. In one embodiment, the second rail 52 is attached to the welding torch 61 mounting seat 53, and the welding torch 61 mounting seat 53 is attached to the extension seat 5121 of the rack top seat 512 of the transfer rack 51. The bearing bracket 5122 far away from the second lead screw 431 is mounted at one end of the extension seat 5121 far away from the second lead screw 431, and the bearing bracket 5122 extends downwards to below the extension seat 5121 and forms a motor mounting plate 54. The fifth driving device 8 includes: and a fifth driving unit mounted on the motor mounting plate 54, the fifth driving unit is preferably a fifth driving motor 81, the fifth driving motor 81 is preferably a speed reducing motor, and a servo motor, a stepping motor or other types of motors can be adopted. A fifth transmission mechanism driven by a fifth drive unit, the fifth transmission mechanism comprising: as an example, the fourth direction is an axial direction of the third lead screw 821, the output shaft of the fifth driving motor 81 extends in the fourth direction in a direction approaching the second lead screw 431, the first lead screw base 83 is mounted at the bottom end of the extension base 5121, the third lead screw 821 is connected to the lead screw base 83, and the output shaft of the fifth driving motor 81 is connected to the third lead screw 821, so that the nut of the third lead screw nut mechanism 82 is driven to horizontally move along the third lead screw 821, i.e., the fourth direction.

In one embodiment, the third lead screw 821 is a bead fine adjustment lead screw, and the nut of the third lead screw nut mechanism 82 is a bead fine adjustment nut. The bottom end of the welding gun 61 mounting seat 53 is provided with a supporting vertical plate 531, the supporting vertical plate 531 downwards passes through a second abdicating hole 5126 of the extension seat 5121 and is fixedly connected to a third moving part (not shown in the figure) arranged on a nut of the third screw-nut mechanism 82, the bottom end of the welding gun 61 mounting seat 53 is provided with a guide block 532 matched with the extension seat 5121, the supporting vertical plate 531 is driven by the nut of the third screw-nut mechanism 82 and the third moving part and drives the guide block 532 and the welding gun 61 mounting seat 53 to horizontally move along the extension seat 5121, so that the welding arm 62 and the welding gun 61 horizontally move along a fourth direction parallel to the first direction, and the welding arm horizontally moves relative to a vertical plane where the axial direction of the welding part such as the tuyere bent pipe 21 is located to perform fine welding bead adjustment.

The utility model also provides an automatic welding system which comprises the welding structure and an electric control cabinet 9 electrically connected with the first to fifth driving devices 8 and the industrial camera 613 of the welding structure through a signal wire harness 91. A cooling water tank 11 is also provided in the installation space of the base 1. In a preferred embodiment, the first delivery pipe 63 is an air supply pipe or a light guide pipe, one end of which is connected to the rear end of the torch body 611 and is connected to the torch port of the torch head 612 through a delivery channel inside the torch body 611; when the first delivery pipe 63 is a gas delivery pipe, the other end of the first delivery pipe 63 is connected to a gas source device (not shown in the figure), and as an embodiment, the gas delivery pipe is used for delivering argon gas to realize argon arc welding; as another embodiment, a gas feed pipe is used to feed carbon dioxide gas to achieve carbon dioxide welding; when the first delivery pipe 63 is a light pipe, the other end of the first delivery pipe 63 is connected to a laser welder (not shown). As another embodiment, the gas feed pipe may be used to feed other gases that may be used in welding operations.

In this embodiment, the second delivery pipe 64 is a solder pipe or a cooling water pipe having one end extending from the outside of the welding torch 61 to the tip of the welding torch, which is provided with a heating device. When the second delivery pipe 64 is a solder pipe, the other end of the second delivery pipe 64 is communicated to a solder discharging device (not shown in the figure), the solder is preferably a welding wire, the welding wire is delivered to the mouth of the welding gun from the solder discharging device through the solder pipe, and the welding wire is melted by a heating device matched with the argon gas, the carbon dioxide gas or the laser beam delivered by the first delivery pipe 63 to realize continuous automatic welding on the welding seam. When argon arc welding or laser welding is adopted, welding flux is not conveyed through the second conveying pipe 64, and argon gas is independently matched with a heating device or a laser beam to carry out fusion welding on the welding flux; when the second delivery pipe 64 is a cooling water pipe, one end of the second delivery pipe 64 is communicated with a water supply port of the cooling water tank 11 provided in the base 1, and the other end of the second delivery pipe 64 passes through the torch head 612 and then returns to a water return port of the cooling water tank 11, so that the cooling water is circulated between the cooling water tank 11 and the torch head 612. As another embodiment, the second delivery pipe 64 is a solder pipe, and a third delivery pipe (not shown in the figure) capable of circulating cooling water between the welding torch head 612 and the cooling water tank 11 is further provided as a cooling water pipe to cool the welding torch head 612.

The welding structure of the double welding guns 61 provided by the utility model comprises the following steps when welding:

the weldment clamp 2 arranged on the base 1 clamps the weldment to be welded, such as the tuyere stock 21;

locate on base 1, a pair of guide welding set of weldment anchor clamps 2 both sides guide a pair of welder subassembly 6 respectively and weld the welding seam of return bend simultaneously in the relative both sides direction of waiting to weld the return bend, and every guide welding set guides the step of its welder subassembly 6 welding return bend and includes:

the first driving device 3 drives the second driving device 4 to horizontally move along a first direction parallel to a vertical surface where the axial direction of the weldment is located;

the second driving device 4 drives the third driving device 5 to vertically lift;

the third driving device 5 drives the welding gun assembly 6 to horizontally move along a second direction which is perpendicular to the first direction and is also perpendicular to a vertical plane where the axial direction of the weldment is located;

the fourth driving device 7 drives the welding gun 61 to rotate relative to the welding arm 62 of the welding gun assembly 6 around a third direction parallel to the first direction;

the fifth driving device 8 drives the third driving device 5 to move horizontally in a fourth direction parallel to the first direction to achieve fine adjustment of the weld bead.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A welding structure of a double welding gun, comprising:

a base;

the weldment clamp is arranged on the base and used for fixing and bearing a weldment;

locate on the base, a pair of guide welding set of weldment anchor clamps both sides, guide welding set includes:

a first driving device for driving the second driving device to horizontally move along a first direction;

the second driving device drives the third driving device to vertically lift;

the third driving device drives the welding gun assembly to horizontally move along a second direction perpendicular to the first direction;

a welding gun assembly comprising:

the welding gun is arranged on the third driving device and comprises a welding gun main body and a welding gun head; the welding gun body is externally connected with a first conveying pipe communicated to a welding gun port of the welding gun head, and the welding gun head is provided with a heating device;

and the feeding support is arranged on the welding gun main body and is used for fixedly mounting a second conveying pipe externally connected to the welding gun opening.

2. The welded structure according to claim 1, wherein:

the first driving device is arranged in the inner space of the base, and the second driving device comprises:

the first driving device drives the upright post which moves along the first direction and vertically extends out of the base upwards, the second driving unit is arranged on the upright post, and the second transmission mechanism is driven by the second driving unit;

the third driving device includes:

the second transmission mechanism drives the transfer support to vertically lift along the upright column, the third driving unit is arranged on the transfer support, and the third transmission mechanism is driven by the third driving unit;

the welding gun assembly further comprises:

the axial direction of the welding arm is the second direction, the welding arm is driven by the third transmission mechanism to horizontally move along the second direction, and a welding gun is connected to the welding arm.

3. The welded structure according to claim 2, further comprising:

and a fourth driving device for driving the welding gun to rotate around a third direction parallel to the first direction and relative to the welding arm.

4. The welded structure according to claim 3, further comprising:

and the fifth driving device is arranged on the transfer support and used for driving the welding gun assembly to horizontally move along a fourth direction parallel to the first direction.

5. The welding structure of claim 4, wherein said first driving means comprises:

a first driving unit installed in the inner space of the base, a first transmission mechanism driven by the first driving unit, the first transmission mechanism including: a first lead screw-nut mechanism driven by the first drive unit, the column being mounted to a first moving member of a first lead screw of the first lead screw-nut mechanism;

the stand includes: the first moving part is arranged on the first moving part, the first moving part is arranged on the first moving part, and is arranged on the first moving part;

the second drive unit is mounted to the column top plate, and the second transmission mechanism includes: the second screw-nut mechanism is driven by the second driving unit and is arranged in the inner accommodating space of the upright post, and the first guide rail is arranged on the inner side of the side plate of the upright post; the shifting support is arranged on a second moving part of a second lead screw of the second lead screw nut mechanism, and the shifting support is driven by the second moving part to vertically lift along the first guide rail.

6. The welding structure of claim 5, wherein the second lead screw-nut mechanism further comprises: the linear bearing is arranged at a distance from the second moving part;

the transfer support includes: the support base is arranged on the second moving part, the support top seat is arranged on the linear bearing, the support side plate is connected between the support top seat and the support base, and a first sliding block matched with the first guide rail is arranged on the outer side of the support side plate.

7. The welded structure according to claim 6, wherein:

the bracket top seat penetrates through the corresponding first yielding port of the upright post side plate along the direction parallel to the first direction, horizontally extends to one side far away from the second screw rod and forms an extending seat;

the third transmission mechanism includes:

the third driving unit is arranged on the bracket base, a third driving motor is adopted as a driving piece of the third driving unit, and a first driving wheel is arranged at the tail end of an output shaft of the third driving motor;

the second guide rail is arranged at the top end of the extension seat of the bracket top seat along the second direction; the welding arm is arranged on the second guide rail through a second sliding block at one end of the welding arm, and a rack is arranged at the top end of the second sliding block;

the top end of the extending seat of the support top seat on two sides of the second guide rail is respectively provided with a pair of corresponding bearing supports, a first rotating shaft is horizontally connected between the pair of bearing supports, the middle part of the first rotating shaft is provided with a driving gear matched with the rack, one end of the first rotating shaft close to the second lead screw extends to the position right above the first driving wheel and is provided with a first driven wheel;

the first driving wheel drives the first driven wheel through a first synchronous belt, the first driven wheel drives the first rotating shaft and the driving gear, the driving gear drives the rack, and the rack drives the second sliding block and the welding arm to horizontally move along the second guide rail.

8. The welded structure according to any one of claims 3 to 7, wherein:

the welding piece clamp fixes the axial direction of the welding piece in a vertical plane, the vertical plane is parallel to the other vertical plane where the first direction is located, and the welding arm drives the welding gun to horizontally move along a second direction perpendicular to the vertical plane where the axial direction of the welding piece is located so as to weld the welding piece;

the fourth driving device includes:

the fourth driving unit is arranged on the welding arm, a fourth driving motor is adopted as a driving piece of the fourth driving unit, and a second driving wheel is arranged at the tail end of an output shaft of the fourth driving motor;

a second rotating shaft rotatably penetrates through the welding arm, the axial direction of the second rotating shaft is the third direction, a second driven wheel is arranged at one end of the second rotating shaft, a welding gun chuck is fixedly installed at the other end of the second rotating shaft, and the welding gun body is clamped on the welding gun chuck;

the second driving wheel drives the second driven wheel through a second synchronous belt, and the second driven wheel drives the second rotating shaft and the welding gun main body to rotate relative to the welding arm.

9. The welded structure according to claim 7, wherein:

the second guide rail is arranged on a welding gun mounting seat, and the welding gun mounting seat is arranged on the extension seat;

the bearing support far away from the second lead screw is arranged at one end, far away from the second lead screw, of the extension seat, and extends downwards to the lower part of the extension seat to form a motor mounting plate;

the fifth driving device includes:

a fifth drive unit mounted on the motor mounting plate, a fifth transmission mechanism driven by the fifth drive unit, the fifth transmission mechanism comprising: a third screw-nut mechanism driven by the fifth driving unit, a screw base installed at a bottom end of the extension base, a third screw of the third screw-nut mechanism being connected to the screw base, the fourth direction being an axial direction of the third screw;

the welder mount pad bottom is installed and is supported the riser, should support the riser and pass downwards extend the second of seat to let a mouthful fixed connection in install in the third motion of third lead screw, just welder mount pad bottom be equipped with the guide block that extends the seat and match, support the riser by the drive of third motion, and drive the guide block reaches the welder mount pad is followed extend a horizontal migration.

10. The welded structure according to any one of claims 1 to 7,

the first conveying pipe is an air supply pipe or a light guide pipe communicated to the mouth of the welding gun;

the second conveying pipe is a welding material pipe or a cooling water pipe extending to the mouth of the welding gun.

Images