CN214392907U - Circular seam welding equipment - Google Patents

Abstract

The utility model discloses a girth welding equipment, it includes the board, a welding set, centre gripping interfacing apparatus and press from both sides tight rotating device, a welding set locates the board, the board is located to centre gripping interfacing apparatus, two cylindric weldments of centre gripping interfacing apparatus can the centre gripping, so that two cylindric weldments butt joint form the circumferential weld, press from both sides tight rotating device and locate the board, press from both sides tight rotating device and can press from both sides tight two cylindric weldments, and can order about two cylindric weldments along same direction rotation, so that a welding set welds the circumferential weld. Through above-mentioned structure, can increase the welding precision to the circumferential weld, and reduced artificial participation to can reduce the cost of production.

Description

Circular seam welding equipment

Technical Field

The utility model relates to a welding equipment technical field, in particular to girth welding equipment.

Background

And the circular seam is a welding seam which is circumferentially arranged at the end-to-end joint of the two cylindrical welding parts. In the process of welding the circular seam, the workpiece is required to be manually moved and the welding position is required to be changed for welding, but the mode of manually moving the workpiece and changing the welding position influences the welding precision of the circular seam and increases the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, for this reason, the utility model provides a circumferential weld welding equipment can increase the welding precision to the circumferential weld, and can reduce production's cost.

According to the utility model discloses a circumferential weld welding equipment of embodiment, including board, first welding set, centre gripping interfacing apparatus and tight rotating device of clamp, first welding set locates the board, centre gripping interfacing apparatus can two cylindric weldments of centre gripping, so that two the butt joint of cylindric weldment head and the tail forms the circumferential weld, press from both sides tight rotating device and locate the board, press from both sides tight rotating device and can press from both sides tightly two the cylindric weldment, and can order about two the cylindric weldment is rotatory along same direction, so that first welding set welds the circumferential weld.

According to the utility model discloses a circumferential weld welding equipment has following beneficial effect at least: the clamping and rotating device can clamp two cylindrical weldments and can drive the two cylindrical weldments to rotate along the same direction, so that the first welding device welds the annular seam.

According to some embodiments of the utility model, centre gripping interfacing apparatus includes two first centre gripping subassemblies, two first centre gripping subassembly is all located the board, two first centre gripping subassembly sets up relatively, first centre gripping subassembly is equipped with first centre gripping through-hole, one of them the head end of cylindric weldment is rotationally worn to locate one of them first centre gripping through-hole, another the tail end of cylindric weldment is rotationally worn to locate another first centre gripping through-hole, so that two the butt joint of cylindric weldment head and the tail forms the circumferential weld.

According to some embodiments of the utility model, first centre gripping subassembly includes first lower cover and first upper cover, first lower cover is located the board, first lower cover is equipped with first breach, first upper cover be equipped with the second breach that first breach corresponds, the one end of first upper cover with the one end pin joint of first lower cover, first upper cover rotate to with during the butt of first lower cover, first breach with the second breach encloses into first centre gripping through-hole.

According to some embodiments of the utility model, first upper cover with the both sides of first lower cover all are equipped with rotatable first spacing gyro wheel, first upper cover with first lower cover is with one side on the total number of first spacing gyro wheel is at least three, at least three first spacing gyro wheel encircles the axis of first centre gripping through-hole evenly sets up, the cylindric weldment is worn to locate during the first centre gripping through-hole, the cylindric weldment with the surface butt of first spacing gyro wheel.

According to some embodiments of the utility model, press from both sides tight rotating device and include two clamping mechanism and two slewing mechanism, two clamping mechanism divides to locate centre gripping interfacing apparatus's both sides, two clamping mechanism sets up relatively, one of them clamping mechanism can press from both sides tight one of them the head end of cylindric weldment, another clamping mechanism can press from both sides tight another the tail end of cylindric weldment, two slewing mechanism all locates the board, two slewing mechanism and two clamping mechanism connects, two the slewing mechanism can order about two clamping mechanism is rotatory along same direction, in order to drive two the cylindric weldment is rotatory along same direction.

According to some embodiments of the utility model, slewing mechanism includes first driving piece and link, first driving piece is located the board, the link with the output of first driving piece is connected, clamping mechanism locates on the link, first driving piece can order about the link is rotatory, in order to drive clamping mechanism is rotatory.

According to some embodiments of the utility model, clamping mechanism includes two clamp blocks and second driving piece, two the clamp block all slides and locates the link, two the clamp block sets up relatively, the second driving piece is located the link, two the clamp block all with the output of second driving piece is connected, the second driving piece can order about two the clamp block slides in opposite directions, with the clamp is tight the cylindric weldment.

According to some embodiments of the utility model, still include second centre gripping subassembly, the second centre gripping subassembly is located the board, just the second centre gripping subassembly is located clamping mechanism with between the centre gripping interfacing apparatus.

According to the utility model discloses a some embodiments still include first shade, first shade is located the board, first shade can shelter from first welding set welding produced dazzling light during the circumferential weld.

According to the utility model discloses a some embodiments, first shade includes light screen and third driving piece, the third driving piece is located the board, the output of third driving piece with the light screen is connected, the third driving piece can order about the light screen shifts up, in order to shelter from first welding set welds produced dazzling light during the circumferential weld.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a block diagram of an embodiment of the girth welding apparatus of the present invention;

FIG. 2 is an enlarged view of portion A shown in FIG. 1;

FIG. 3 is a schematic diagram of the clamping and docking device, the first welding device and the machine shown in FIG. 1;

FIG. 4 is a block diagram of the clamping mechanism, the rotating mechanism and the machine table shown in FIG. 1;

FIG. 5 is another block diagram of the clamping mechanism, the rotating mechanism and the machine base shown in FIG. 4;

FIG. 6 is a block diagram of the second clamping assembly and the machine table shown in FIG. 1;

fig. 7 is another structural view of the second clamping assembly and the machine table shown in fig. 6.

Reference numerals:

the machine comprises a machine table 100, a branch machine table 110, a first bearing table 120, a second bearing table 130, a supporting plate 140, a vertical beam 141, a driving positioning assembly 142, a third connecting piece 142A, a blocking block 142B, a seventh driving piece 142C, an eighth driving piece 142D, a ninth driving piece 143, a third bearing table 150 and a positioning bolt 151;

a first welding device 210, a welding gun 211, a gun moving mechanism 212, a gun clamping assembly 212A, a slide block 212A, a clamping plate 212A2, a first connecting piece 212B, a second connecting piece 212C, a fourth driving piece 212D, a fifth driving piece 212E and a second welding device 220;

the clamping and docking device 300, the first clamping component 310, the first lower cover 311, the first upper cover 312, and the first clamping through hole 313;

the clamping device 400, the clamping mechanism 410, the clamping block 411, the second driving element 412, the connecting block 412A, the swing arm 412B, the rotating mechanism 420, the first driving element 421, the connecting frame 422, the vertical plate 422A and the connecting cross bar 422B;

a first limit roller 510 and a second limit roller 520;

the second clamping assembly 600, the second lower cover 610, the second upper cover 620, and the second clamping through hole 630;

a first shading device 710, a shading plate 711, a third driving piece 712 and a second shading device 720;

a welding machine 800;

a grinding mechanism 900, a clamping plate 910, a grinding opening 911 and a sixth driving piece 920;

cylindrical weldment a and circular seam b.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, if there are first, second, third, fourth, fifth, etc. described, it is only for the purpose of distinguishing technical features, and it is not understood that relative importance is indicated or implied or that the number of indicated technical features is implicitly indicated or that the precedence of the indicated technical features is implicitly indicated.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly defined, the terms "set," "mounted," "connected," and the like are to be understood in a broad sense, and may be directly connected or indirectly connected through an intermediate medium, for example; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be a mechanical connection; either as communication within the two elements or as an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

Referring to fig. 1 to 7, a circular seam welding apparatus according to an embodiment of the present invention includes a machine table 100, a first welding device 210, a clamping and docking device 300, and a clamping and rotating device 400.

The first welding device 210 is arranged on the machine table 100, the clamping and butting device 300 can clamp two cylindrical weldments a so that the two cylindrical weldments a are butted end to form a circular seam b, the clamping and rotating device 400 is arranged on the machine table 100, the clamping and rotating device 400 can clamp the two cylindrical weldments a and can drive the two cylindrical weldments a to rotate along the same direction so that the first welding device 210 can weld the circular seam b.

It is to be noted that, when the two cylindrical weldments a are rotated in the same direction, the two cylindrical weldments a are kept in a relatively stationary state.

The clamping and rotating device 400 can clamp two cylindrical weldments a and drive the two cylindrical weldments a to rotate in the same direction, so that the first welding device 210 welds the annular seam b.

The machine 100 is formed by splicing three sub-machines 110 end to end.

In some embodiments, the number of the dispenser stands 110 may be set according to the length of the cylindrical weldment a to cope with the situation of different spans of the cylindrical weldment a.

The machine 100 is provided with a first supporting platform 120.

The first welding device 210 includes a welding torch 211, the welding torch 211 is provided on the first support base 120, the welding torch 211 is connected to the welding machine 800, and the welding torch 211 can weld the circumferential seam b.

In this embodiment, in order to facilitate adjustment of the welding gun 211 to a position corresponding to the circumferential seam b, the first welding device 210 further includes a gun moving mechanism 212.

The gun moving mechanism 212 includes a gun clamping assembly 212A, a first connector 212B, a second connector 212C, a fourth driver 212D, and a fifth driver 212E.

Referring to fig. 3, the first connecting member 212B is slidably disposed on the first platform 120, one end of the first connecting member 212B is disposed with a bump 212B1, the second connecting member 212C is disposed with a protruding plate 212C1 corresponding to the bump 212B1, the protruding plate 212C1 is disposed at one side of the bump 212B1, the protruding plate 212C1 is disposed with an arc-shaped through-slot, the protruding plate 212C1 and the bump 212B1 are disposed with a first fastening member, the first fastening member is capable of moving in the arc-shaped through-slot, the gun clamping assembly 212A is capable of clamping the welding gun 211, the gun clamping assembly 212A is slidably disposed on the second connecting member 212C, the fourth driving member 212D is disposed on the first platform 120, an output end of the fourth driving member 212D is connected to the first connecting member 212B, the fourth driving member 212D is capable of driving the first connecting member 212B to slide along the width direction of the machine platform 100, the fifth driving member 212E is disposed on the second connecting member 212C, an output end of the fifth driving member 212E is connected to the gun clamping assembly 212A, the fifth driving member 212E can drive the grip gun assembly 212A to slide along the length of the second connecting member 212C. The fourth driving member 212D may be a cylinder, a hydraulic cylinder, an electric push rod, etc.; the fifth driving member 212E can be a cylinder, a hydraulic cylinder, an electric push rod, etc.; the first fastener may be provided as a bolt or the like.

The grip gun assembly 212A includes a slide 212A1 and a grip plate 212A 2.

The slider 212a1 is slidably disposed on the second connecting member 212C, the clamp plate 212a2 is connected to the slider 212a1 by a second fastener, so that the welding gun 211 is sandwiched between the clamp plate 212a2 and the slider 212a1, the slider 212a1 is connected to an output end of the fifth driving member 212E, and the fifth driving member 212E can drive the slider 212a1 to slide along the length direction of the second connecting member 212C. Wherein the second fastener can be a bolt or the like.

The machine 100 is provided with a second supporting platform 130.

The clamp interface 300 includes two first clamp assemblies 310.

Referring to fig. 3, the two first clamping assemblies 310 are disposed on the second supporting platform 130, the two first clamping assemblies 310 are disposed oppositely, the first clamping assemblies 310 are provided with first clamping through holes 313, and the head end of one cylindrical weldment a and the tail end of the other cylindrical weldment a rotatably penetrate through the two first clamping through holes 313 respectively, so that the two cylindrical weldments a are butted end to form a circular seam b.

It should be noted that the head end of one of the cylindrical weldment a and the tail end of the other cylindrical weldment a are rotatably inserted into the two first clamping through holes 313, that is, the head end of the one of the cylindrical weldment a is rotatably inserted into the one of the first clamping through holes 313, and the tail end of the other cylindrical weldment a is rotatably inserted into the other of the first clamping through holes 313.

The first clamping assembly 310 includes a first lower cover 311 and a first upper cover 312.

The first lower cover 311 is disposed on the second bearing platform 130, the first lower cover 311 is provided with a first gap, the first upper cover 312 is provided with a second gap corresponding to the first gap, one end of the first upper cover 312 is pivotally connected to one end of the first lower cover 311, and when the first upper cover 312 rotates to abut against the first lower cover 311, the first gap and the second gap enclose a first clamping through hole 313.

In this embodiment, the other end of the first upper cover 312 is provided with a first mounting hole, the other end of the first lower cover 311 is provided with a second mounting hole corresponding to the first mounting hole, and when the first upper cover 312 rotates to abut against the first lower cover 311, the first mounting hole and the second mounting hole are provided with a third fastener, so that the first lower cover 311 is connected with the first upper cover 312. Wherein the third fastening member may be a bolt or the like.

In some embodiments, one of the other end of the first upper cover 312 and the other end of the first lower cover 311 is provided with a clamping block, and the other end of the first upper cover 312 is provided with a clamping hole matched with the clamping block, when the first upper cover 312 is rotated to abut against the first lower cover 311, the clamping block is clamped in the clamping hole, so that the first lower cover 311 is connected with the first upper cover 312.

In order to avoid friction between the cylindrical weldment a and the wall of the first clamping through hole 313 during rotation, referring to fig. 3, the two sides of the first upper cover 312 and the first lower cover 311 are both provided with the rotatable first limiting rollers 510, the total number of the first limiting rollers 510 on the same side of the first upper cover 312 and the first lower cover 311 is four, the four first limiting rollers 510 are uniformly arranged around the axis of the first clamping through hole 313, and when the cylindrical weldment a is arranged in the first clamping through hole 313 in a penetrating manner, the cylindrical weldment a is abutted to the surface of the first limiting rollers 510.

In some embodiments, the total number of the first spacing rollers 510 on the same side of the first upper cover 312 and the first lower cover 311 may be set to three, five, and the like.

In this embodiment, the first light shielding device 710 is further included, the first light shielding device 710 is disposed on the second platform 130, and the first light shielding device 710 can shield the flare generated when the first welding device 210 welds the circular seam b.

Specifically, referring to fig. 1 and 3, the first light shielding device 710 includes a light shielding plate 711 and a third driving member 712, the third driving member 712 is disposed on the second support platform 130, an output end of the third driving member 712 is connected to the light shielding plate 711, and the third driving member 712 can drive the light shielding plate 711 to move upward to shield the glare generated when the first welding device 210 welds the circumferential seam b. The third driving member 712 may be an air cylinder, a hydraulic cylinder, an electric push rod, etc.

In the present embodiment, in order to make the end-to-end welding position of the two cylindrical weldments a more flat, a grinding mechanism 900 is further included.

The smoothing mechanism 900 includes a clamping plate 910 and a sixth drive 920.

The clamping plate 910 is provided with an upward ground 911, the ground 911 is matched with the cylindrical weldment a, the sixth driving member 920 is arranged on the second bearing platform 130, the output end of the sixth driving member 920 is connected with the clamping plate 910, the sixth driving member 920 can drive the clamping plate 910 to move upwards, the two cylindrical weldments a are enabled to abut against the ground 911, and the circular seam b and the ground 911 are enabled to be located on the same plane. The sixth driving member 920 may be an air cylinder, a hydraulic cylinder, an electric push rod, or the like.

Through the structure, when the two cylindrical weldments a rotate along the same direction, and the welding gun 211 is used for welding the circular seam b, the convex welding slag on the circular seam b can be ground flat at the ground 911, so that the head and tail welding positions of the two cylindrical weldments a are smoother.

Two support plates 140 are slidably disposed on the machine table 100.

The clamping rotation device 400 includes two clamping mechanisms 410 and two rotation mechanisms 420.

Referring to fig. 1, 4 and 5, two clamping mechanisms 410 are respectively disposed at two sides of the clamping and docking device 300, the two clamping mechanisms 410 are disposed oppositely, one clamping mechanism 410 can clamp a head end of one cylindrical weldment a, the other clamping mechanism 410 can clamp a tail end of the other cylindrical weldment a, the two rotating mechanisms 420 are disposed on the two support plates 140 in a one-to-one correspondence manner, the two rotating mechanisms 420 are connected with the two clamping mechanisms 410 in a one-to-one correspondence manner, and the two rotating mechanisms 420 can drive the two clamping mechanisms 410 to rotate in the same direction so as to drive the two cylindrical weldments a to rotate in the same direction.

The support plate 140 is slidably provided with a vertical beam 141.

The rotating mechanism 420 includes a first driving member 421 and a connection frame 422.

The first driving member 421 is disposed on one side of the vertical beam 141, an output end of the first driving member 421 penetrates through the vertical beam 141 and is connected to the connecting frame 422 on the other side of the vertical beam 141, the clamping mechanism 410 is disposed on the connecting frame 422, and the first driving member 421 can drive the connecting frame 422 to rotate so as to drive the clamping mechanism 410 to rotate. The first driving member 421 is a motor.

It should be noted that the first driving member 421 is disposed on one side of the vertical beam 141, which means that the first driving member 421 is disposed on one side of the vertical beam 141 away from the clamping and docking device 300; on the other side of the vertical beam 141, which means the side of the vertical beam 141 near the clamping interface 300.

The connecting frame 422 includes two vertical plates 422A and four connecting cross bars 422B arranged oppositely.

Two risers 422A set up relatively, four connect horizontal pole 422B all locate between two risers 422A, connect horizontal pole 422B's both ends and link firmly with two risers 422A respectively, keep away from the riser 422A of centre gripping interfacing apparatus 300 and be connected with the output of first driving piece 421.

In some embodiments, the number of connecting rails 422B can be set to three, five, etc.

The clamping mechanism 410 comprises two clamping blocks 411 and a second drive member 412.

Two clamp splices 411 all slide to be located on being close to centre gripping interfacing apparatus 300's riser 422A, and two clamp splices 411 set up relatively, and second driving piece 412 is located on keeping away from centre gripping interfacing apparatus 300's riser 422A, and two clamp splices 411 all are connected with the output of second driving piece 412, and second driving piece 412 can order about two clamp splices 411 and slide in opposite directions to press from both sides tight cylindric weldment a. The second driving member 412 can be an air cylinder, a hydraulic cylinder, an electric push rod, etc.

The two clamping blocks 411 are connected to an output end of the second driving member 412, specifically, the output end of the second driving member 412 is fixedly provided with a connecting block 412A, the connecting block 412A is rotatably connected with two swing arms 412B, the two swing arms 412B are rotatably connected to the two clamping blocks 411 respectively, and the second driving member 412 can drive the connecting block 412A to move so as to drive the two swing arms 412B to swing in opposite directions, so that the two clamping blocks 411 slide in opposite directions.

In this embodiment, one end of the swing arm 412B is rotatably connected to the connecting block 412A, and the other end of the swing arm 412B is rotatably connected to the clamping block 411.

The machine 100 is slidably provided with a third supporting platform 150.

In order to increase the clamping stability of the cylindrical weldment a, the clamping device further comprises a second clamping assembly 600, the second clamping assembly 600 is arranged on the third bearing platform 150, and the second clamping assembly 600 is located between the clamping mechanism 410 and the clamping and butting device 300.

Referring to fig. 1, 6, and 7, the second clamp assembly 600 includes a second lower cover 610 and a second upper cover 620.

The second lower cover 610 is disposed on the third bearing platform 150, the second lower cover 610 is provided with a third gap, the second upper cover 620 is provided with a fourth gap corresponding to the third gap, one end of the second upper cover 620 is pivotally connected to one end of the second lower cover 610, and when the second upper cover 620 rotates to abut against the second lower cover 610, the third gap and the fourth gap enclose a second clamping through hole 630.

In this embodiment, the other end of the second upper cover 620 is provided with a third mounting hole, the other end of the second lower cover 610 is provided with a fourth mounting hole corresponding to the third mounting hole, and when the second upper cover 620 rotates to abut against the second lower cover 610, the fourth fastener is arranged in the third mounting hole and the fourth mounting hole in a penetrating manner, so that the second lower cover 610 is connected with the second upper cover 620. Wherein, the fourth fastener can be provided as a bolt or the like.

In some embodiments, one of the other end of the second upper cover 620 and the other end of the second lower cover 610 is provided with a locking block, and the other end of the second upper cover 620 is provided with a locking hole matched with the locking block, when the second upper cover 620 rotates to abut against the second lower cover 610, the locking block is locked in the locking hole, so that the second lower cover 610 is connected with the second upper cover 620.

In order to avoid friction between the cylindrical weldment a and the wall of the second clamping through hole 630 during rotation, referring to fig. 6 and 7, two sides of the second upper cover 620 and the second lower cover 610 are respectively provided with a rotatable second limiting roller 520, the total number of the second limiting rollers 520 on the same side of the second upper cover 620 and the second lower cover 610 is four, the four second limiting rollers 520 are uniformly arranged around the axis of the second clamping through hole 630, and when the cylindrical weldment a is arranged in the second clamping through hole 630 in a penetrating manner, the cylindrical weldment a is abutted to the surface of the second limiting rollers 520.

In some embodiments, the total number of the second spacing rollers 520 on the same side of the second upper cover 620 and the second lower cover 610 may be set to three, five, etc.

The supporting plate 140 is arranged on the machine table 100 through the slide rail slider, the vertical beam 141 is arranged on the supporting plate 140 through the slide rail slider, and the third bearing table 150 is arranged on the machine table 100 through the slide rail slider.

The support plate 140, vertical beam 141, and third platform 150 are slidably positioned.

The supporting plate 140 can be positioned in a sliding manner, the machine table 100 is provided with a rack 160, the rack 160 is arranged along the length direction of the machine table 100, the supporting plate 140 is connected with a driving positioning assembly 142, and the driving positioning assembly 142 is connected with the rack 160 so as to realize the sliding positioning of the supporting plate 140 through the rack 160.

The driving positioning assembly 142 includes a third connecting member 142A, a stopper 142B, a seventh driving member 142C, and an eighth driving member 142D.

Referring to fig. 4 and 5, the third connecting member 142A is fixedly connected to the supporting plate 140, the seventh driving member 142C is disposed on the third connecting member 142A, an output end of the seventh driving member 142C is fixedly connected to a gear, the gear is engaged with the rack 160, the seventh driving member 142C can drive the gear to rotate so as to drive the supporting plate 140 to slide, the eighth driving member 142D is disposed on the third connecting member 142A, an output end of the eighth driving member 142D is fixedly connected to the blocking block 142B, the blocking block 142B is provided with a tooth portion engaged with the rack 160, and the eighth driving member 142D can drive the blocking block 142B to move so that the tooth portion is engaged with the rack 160 to position the supporting plate 140. Wherein, the seventh driving element 142C is set as a motor; the eighth driving member 142D may be an air cylinder, a hydraulic cylinder, an electric push rod, or the like.

The vertical beam 141 can be slidably positioned, referring to fig. 5, the supporting plate 140 is provided with a ninth driving element 143, an output end of the ninth driving element 143 is fixedly connected with the vertical beam 141, and the ninth driving element 143 can drive the vertical beam 141 to slide, wherein, since the ninth driving element 143 is a self-locking driving element, the current position of the output end can be maintained after power failure or stop working, so as to position the vertical beam 141. The ninth driving member 143 may be configured as a lock cylinder or the like.

The third platform 150 is slidably positioned, referring to fig. 6 and 7, a positioning bolt 151 is inserted through the third platform 150, and when the third platform 150 slides to a suitable position, the positioning bolt 151 is adjusted to abut against the machine platform 100, so as to position the third platform 150.

In the present embodiment, two vertical beams 141 are provided with one second welding device 220, respectively, and the second welding device 220 can weld the end portions of the cylindrical welds a close to the clamping mechanism 410, and the second welding device 220 has the same structure as the first welding device 210, and therefore, will not be described here.

In this embodiment, two vertical beams 141 are respectively provided with a second light shielding device 720, the second light shielding device 720 can shield the flare light generated during the welding of the second welding device 220, and the second light shielding device 720 has the same structure as the first light shielding device 710, and therefore, the description thereof is omitted.

Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications and substitutions are included in the scope defined by the claims of the present application.

Claims (10)

1. A circular seam welding apparatus characterized by: comprises that

A machine platform;

the first welding device is arranged on the machine table;

the clamping and butting device is arranged on the machine table and can clamp two cylindrical welding pieces so as to enable the two cylindrical welding pieces to be butted end to form a circular seam;

the clamping and rotating device is arranged on the machine table and can clamp two cylindrical weldments and drive the two cylindrical weldments to rotate in the same direction, so that the first welding device welds the circular seam.

2. A girth welding apparatus according to claim 1, wherein:

centre gripping interfacing apparatus includes two first centre gripping subassemblies, two first centre gripping subassembly is all located the board, two first centre gripping subassembly sets up relatively, first centre gripping subassembly is equipped with first centre gripping through-hole, one of them the head end of cylindric weldment rotationally wears to locate one of them first centre gripping through-hole, another the tail end of cylindric weldment rotationally wears to locate another first centre gripping through-hole, so that two the butt joint of cylindric weldment head and the tail forms the circumferential weld.

3. A girth welding apparatus according to claim 2, wherein:

the first clamping assembly comprises:

the first lower cover is arranged on the machine table and provided with a first notch;

the first upper cover is provided with a second notch corresponding to the first notch, one end of the first upper cover is pivoted with one end of the first lower cover, and when the first upper cover rotates to be abutted against the first lower cover, the first notch and the second notch surround the first clamping through hole.

4. A girth welding apparatus according to claim 3, wherein:

the first upper cover and the two sides of the first lower cover are both provided with rotatable first limiting idler wheels, the total number of the first limiting idler wheels on the same side of the first upper cover and the first lower cover is at least three, the number of the first limiting idler wheels is at least three, the first limiting idler wheels are annularly and uniformly arranged on the axis of the first clamping through hole, and the cylindrical welding piece is abutted to the surface of the first limiting idler wheels when the cylindrical welding piece is arranged in the first clamping through hole in a penetrating mode.

5. A girth welding apparatus according to claim 1, wherein:

the clamping rotation device includes:

the two clamping mechanisms are respectively arranged on two sides of the clamping and butting device and are arranged oppositely, one clamping mechanism can clamp the head end of one cylindrical welding piece, and the other clamping mechanism can clamp the tail end of the other cylindrical welding piece;

two slewing mechanism all locate the board, two slewing mechanism and two clamping mechanism connects one-to-one, two slewing mechanism can order about two clamping mechanism is rotatory along same direction, in order to drive two the cylindric weldment is rotatory along same direction.

6. A girth welding apparatus according to claim 5, wherein:

the rotating mechanism includes:

the first driving piece is arranged on the machine table;

the connecting frame is connected with the output end of the first driving piece, the clamping mechanism is arranged on the connecting frame, and the first driving piece can drive the connecting frame to rotate so as to drive the clamping mechanism to rotate.

7. A girth welding apparatus according to claim 6, wherein:

the clamping mechanism includes:

the two clamping blocks are arranged on the connecting frame in a sliding mode and are arranged oppositely;

the second driving piece is arranged on the connecting frame, the two clamping blocks are connected with the output end of the second driving piece, and the second driving piece can drive the two clamping blocks to slide in opposite directions so as to clamp the cylindrical welding piece.

8. A girth welding apparatus according to claim 5, wherein:

the clamping mechanism is arranged on the machine table, and the clamping mechanism is arranged between the machine table and the clamping butt joint device.

9. A girth welding apparatus according to claim 1, wherein:

still include first shade, first shade is located the board, first shade can shelter from first welding set welds produced flare when the circumferential weld.

10. A girth welding apparatus according to claim 9, wherein:

the first shade device includes:

a visor;

the third driving piece is arranged on the machine table, the output end of the third driving piece is connected with the light shielding plate, and the third driving piece can drive the light shielding plate to move upwards so as to shield the first welding device from the flare light generated during welding of the circular seam.

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