CN114619134B

CN114619134B - Gantry type welding device and welding method

Info

Publication number: CN114619134B
Application number: CN202210295647.6A
Authority: CN
Inventors: 张贺; 张铁浩; 曲晓红; 付炳欣; 杨冰冰
Original assignee: CRRC Qingdao Sifang Co Ltd
Current assignee: CRRC Qingdao Sifang Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2024-01-26
Anticipated expiration: 2042-03-23
Also published as: CN114619134A

Abstract

The invention provides a gantry type welding device and a welding method, wherein the device comprises the following components: track, gantry welding equipment and assembly welding tool; the track extends along a first direction; the gantry welding equipment is arranged on the track in a sliding manner; the assembly welding tools are arranged in the welding area of the gantry welding equipment at intervals along the first direction and are used for clamping the workpieces to be welded and preventing the workpieces to be welded from deforming in the welding process; when the gantry welding equipment welds the workpieces to be welded in one assembly welding tool, the rest assembly welding tools clamp the rest workpieces to be welded. According to the gantry welding device and the welding method, the fixture clamp in gantry welding is subjected to prefabricated reverse deformation, so that small deformation welding is realized, and meanwhile, the requirement of multi-station collaborative operation is met.

Description

Gantry type welding device and welding method

Technical Field

The invention relates to the technical field of welding, in particular to a gantry type welding device and a welding method.

Background

In the prior art, when welding large-sized workpieces or when welding large-sized sectional materials, a gantry type welding device is generally adopted for welding. The structure of the existing gantry welding device adopts a gantry type frame, and a welding robot is hoisted on a movable cross beam of the frame, so that the welding robot can horizontally move along the movable cross beam of the frame, and the purpose of welding products below the frame is achieved.

However, the existing welding products cannot meet the requirements of multi-station and synchronous collaborative welding through the clamp, and when large workpieces are welded, large deformation exists, and in the multi-station welding process, the problem of reverse deformation of the large workpieces cannot be avoided by the conventional clamp.

Disclosure of Invention

The invention provides a gantry welding device which is used for solving the defect that the existing gantry welding product clamp cannot meet the production requirement, and realizing small-deformation welding by carrying out prefabricated reverse deformation on the tooling clamp in gantry welding, and simultaneously meeting the requirement of multi-station collaborative operation.

The invention also provides a welding method.

According to a first aspect of the present invention, there is provided a gantry welding apparatus comprising: track, gantry welding equipment and assembly welding tool;

the track extends along a first direction;

the gantry welding equipment is arranged on the track in a sliding manner;

the assembly welding tools are arranged in the welding area of the gantry welding equipment at intervals along the first direction and are used for clamping the workpieces to be welded and preventing the workpieces to be welded from deforming in the welding process;

when the gantry welding equipment welds the workpieces to be welded in one assembly welding tool, the rest assembly welding tools clamp the rest workpieces to be welded.

By providing at least two assembly welding tools, the gantry welding equipment is used for welding one assembly welding tool, and at least one other assembly welding tool is used for clamping or overturning the workpiece to be welded, so that the utilization rate of the equipment is improved, and waiting is reduced.

According to one embodiment of the present invention, the assembly welding tool includes: the device comprises longitudinal beams, cross beams, support beam assemblies, positioning end assemblies and pushing end assemblies;

the longitudinal beams are arranged at intervals and extend along the first direction;

the cross beams are arranged at intervals along the first direction and overlap with the longitudinal beams;

the support beam assemblies are arranged at intervals along a second direction perpendicular to the first direction and overlap with the cross beam for supporting the workpiece to be welded;

the positioning end assembly is arranged at the end part close to one side of the longitudinal beam and is abutted against the workpiece to be welded;

the pushing end assembly is arranged near the end part of the longitudinal beam opposite to the other side of the positioning end assembly and is abutted against the workpiece to be welded;

the pushing end assembly can adjust the clamping space for clamping the workpiece to be welded along the first direction.

Specifically, this embodiment provides an implementation mode of assembly welding frock for assembly welding frock overall structure is more stable, avoids the large-scale work piece that waits to weld to take place the drunkenness in the welding process.

Further, the support beam assembly is arranged to support the workpiece to be welded from the bottom.

Furthermore, the positioning end assembly is arranged, so that the workpiece to be welded can obtain a positioning reference along the first direction, and the workpiece to be welded can be positioned conveniently through the positioning end assembly.

Still further, pushing the setting of tight end subassembly has realized the scope adjustment of waiting to weld the work piece clamping, has satisfied the clamping of waiting to weld the work piece that different sizes or size exist certain machining error.

According to one embodiment of the present invention, the support beam assembly includes: a support base, a support adjustment portion, and an elastic support portion;

the support base is arranged at the top of the cross beam and extends along the first direction;

the support adjusting part is arranged corresponding to the support base;

the elastic supporting part is connected with the supporting and adjusting part and is used for abutting against the workpiece to be welded;

wherein the support base is capable of adjusting a relative position with the cross beam along the second direction;

The support adjusting part can adjust the support height of the elastic support part relative to the workpiece to be welded.

Specifically, the embodiment provides an implementation manner of the support beam assembly, the support base plays a role in supporting the support adjusting part, and the support adjusting part can adjust corresponding support heights according to different support situation demands, so that the support of the workpiece to be welded is realized through the elastic support part.

According to one embodiment of the present invention, the positioning end assembly includes: the positioning end beam, the positioning base, the positioning end adjusting part and the positioning end pressing arm;

the positioning end cross beam is arranged at one side end part close to the longitudinal beam along the second direction;

the positioning bases are in sliding fit with the tops of the positioning end cross beams along the second direction;

the positioning end adjusting part is connected with the positioning base;

one end of the positioning end pressing arm is connected with the positioning end adjusting part, and the other end of the positioning end pressing arm is used for being abutted against the upper surface of the workpiece to be welded;

the positioning end adjusting part is used for adjusting the height of the relative position of the positioning end pressing arm along the vertical direction and the rotation angle of the positioning end pressing arm along the horizontal direction.

Specifically, the embodiment provides an implementation mode of a positioning end assembly, and through setting up positioning end crossbeam and positioning base, the benchmark that provides the tip location for waiting to weld the work piece has been realized, satisfies the clamping of waiting to weld the work piece on the assembly welding frock.

Further, through setting up of locating end adjustment portion, realized compressing tightly the height and compressing tightly the regulation of position to locating end pressure arm, satisfied the needs of compressing tightly of waiting to weld the work piece surface.

According to one embodiment of the present invention, the push end assembly includes: the device comprises a pushing end cross beam, a pushing first base, a pushing second base, a pushing end first adjusting part, a pushing end second adjusting part, a pushing end pressing arm and a pushing end pressing block;

the pushing end cross beam is arranged at the end part close to the other side of the longitudinal beam opposite to the positioning end assembly along the second direction;

the plurality of pushing first bases are in sliding fit with the top of the pushing end cross beam along the second direction;

the pushing second base is in sliding fit with the top of the pushing first base along the first direction;

the pushing end first adjusting part is arranged at one side end part of the pushing first base and is connected with the pushing second base so as to adjust the relative position of the pushing second base in the first direction;

The pushing end second adjusting part and the pushing second base are connected with each other through a connecting rod;

one end of the pushing end pressing arm is connected with the pushing end second adjusting part, and the other end of the pushing end pressing arm is used for being abutted against the upper surface of the workpiece to be welded;

the pushing end pressing block is arranged on one side, facing the positioning end assembly, of the pushing second base and is used for abutting against the side part of the workpiece to be welded;

the second adjusting part of the pushing end is used for adjusting the height of the pushing end pressing arm at the relative position along the vertical direction and the rotating angle in the horizontal direction.

Specifically, the embodiment provides an implementation mode of pushing end assembly, through setting up pushing end crossbeam, pushing first base and pushing second base, realized the adjustment of the clamping space of waiting to weld the work piece along first direction, satisfied the waiting to weld work piece clamping demand of equidimension.

Further, through sliding arrangement between pushing end cross beams and pushing first bases, adjustment of displacement of the pushing first bases in the second direction is achieved, meanwhile, pushing second bases can be adjusted to push the first bases along the first direction, and adjustment of clamping spaces of workpieces to be welded in different sizes is achieved.

Still further, the setting of pushing away tight end first adjustment portion provides power for pushing away the removal of tight second base along the first direction, pushes away tight end second adjustment portion and then has realized pushing away tight end press arm's height of packing and the regulation of compressing tightly the position, satisfies the demand of compressing tightly of waiting to weld the work piece surface.

Still further, pushing the tight end briquetting then is with waiting to weld the lateral part butt of work piece after finishing the clamping space of adjustment, realizes waiting to weld the location of work piece.

According to an embodiment of the present invention, the assembly welding tool further includes: the device comprises a compression end cross beam, a compression end first base, a compression end first adjusting part and a compression end first pressing arm;

the pressing end cross beam is positioned at the side part of the workpiece to be welded and arranged at the top parts of two adjacent longitudinal beams along the second direction;

the first base of the pressing end is in sliding fit with the top of the cross beam of the pressing end along the second direction;

the first pressing end adjusting part is connected with the first pressing end base;

one end of the first pressing arm of the pressing end is connected with the first adjusting part of the pressing end, and the other end of the first pressing arm of the pressing end is used for being abutted against the upper surface of the workpiece to be welded;

the first pressing end adjusting part is used for adjusting the height of the relative position of the first pressing arm of the pressing end along the vertical direction and the rotating angle of the first pressing arm of the pressing end along the horizontal direction;

The first pressing arm of the pressing end is an adjusting arm with adjustable length.

Specifically, this embodiment provides an implementation mode that lateral part compresses tightly, compresses tightly end crossbeam, compressing end first base, compressing end first regulation portion and compressing end first pressure arm that the work piece lateral part set up to wait to weld, has realized following the first direction, exerts the compressive force in waiting to weld the work piece lateral part, satisfies the compression of waiting to weld work piece length direction.

According to an embodiment of the present invention, the assembly welding tool further includes: the second base of the pressing end, the second adjusting part of the pressing end and the second pressing arm of the pressing end;

the second base of the pressing end is in sliding fit with the side part of the cross beam of the pressing end along the second direction;

the second pressing end adjusting part is connected with the second pressing end base;

one end of the second pressing arm of the pressing end is connected with the second adjusting part of the pressing end, and the other end of the second pressing arm of the pressing end is used for being abutted against the upper surface of the workpiece to be welded;

the second pressing end adjusting part is used for adjusting the height of the second pressing arm of the pressing end at the relative position along the vertical direction and the rotation angle in the horizontal direction;

the second pressing arm of the pressing end is an adjusting arm with adjustable length;

The arm extension of the second pressing arm of the pressing end is larger than that of the first pressing arm of the pressing end;

the pressing force of the second pressing arm of the pressing end is larger than that of the first pressing arm of the pressing end.

Specifically, this embodiment provides another lateral part and compresses tightly the implementation mode, compresses tightly end second base, compresses tightly end second adjustment part and compresses tightly the setting of end second pressure arm, satisfies the demand that compresses tightly on a large scale from waiting to weld work piece lateral part, and gantry welding equipment is welding the in-process simultaneously, and accessible compresses tightly end second base, compresses tightly end second adjustment part and compresses tightly the adjustment of end second pressure arm realization compression position, realizes the anti-deformation adjustment of waiting to weld the work piece.

According to one embodiment of the invention, two workpieces to be welded are clamped in the assembly welding tool at intervals along the second direction;

the assembly welding tool further comprises: the pressing end third base, the pressing end third adjusting part and the pressing end third pressing arm;

the third base of the pressing end is arranged at the top of the longitudinal beam between the two workpieces to be welded;

the third adjusting part of the pressing end is connected with the third base of the pressing end;

the third pressing arm of the pressing end is connected with the third adjusting part of the pressing end, and the two side ends of the third pressing arm of the pressing end are respectively abutted with the upper surfaces of the two workpieces to be welded;

The third pressing end adjusting part is used for adjusting the height of the third pressing arm of the pressing end at the relative position along the vertical direction and the rotation angle in the horizontal direction;

the third pressing arm of the pressing end is an adjusting arm with adjustable length.

Specifically, this embodiment provides an embodiment that middle part was compressed tightly, compresses tightly the third base of end, compresses tightly the third adjusting part of end and compresses tightly the third arm of end and has satisfied when two work pieces to be welded set up along the second direction interval, because the interval distance of two work pieces to be welded leads to waiting to weld the problem that work piece top packing force is not enough, through setting up the third base of end, compresses tightly the third adjusting part of end and compresses tightly the third arm of end between two work pieces to be welded, has overcome above-mentioned problem, realizes the anti-deformation adjustment of waiting to weld the work piece.

According to an embodiment of the present invention, the assembly welding tool further includes: the pressing end comprises a fourth base, a fourth pressing end adjusting part and a fourth pressing arm;

the fourth base of the pressing end is arranged at the top of the longitudinal beam between the two workpieces to be welded and is positioned between the adjacent third bases of the pressing end;

the fourth adjusting part of the compressing end is connected with the fourth base of the compressing end;

The fourth pressing arm of the pressing end is connected with the fourth adjusting part of the pressing end, and the two side end parts of the fourth pressing arm of the pressing end are respectively abutted with the upper surfaces of the two workpieces to be welded;

the fourth pressing end adjusting part is used for adjusting the height of the fourth pressing arm of the pressing end at the relative position along the vertical direction and the rotation angle in the horizontal direction;

the fourth pressing arm of the pressing end is an adjusting arm with adjustable length;

the arm extension of the fourth pressing arm of the pressing end is larger than that of the third pressing arm of the pressing end;

the pressing force of the fourth pressing arm of the pressing end is larger than that of the third pressing arm of the pressing end.

Specifically, this embodiment provides another middle part and compresses tightly the implementation mode, compresses tightly the fourth base of end, compresses tightly the fourth adjustment part of end and compresses tightly the fourth pressure arm of end and has satisfied when two work pieces of waiting to weld set up along the second direction interval, because two interval distances of waiting to weld the work piece, lead to waiting to weld the problem that work piece top packing force is not enough, compress tightly the arm exhibition of the fourth pressure arm of end and packing force simultaneously and bigger, satisfy the demand that compresses tightly on a large scale between two adjacent waiting to weld the work piece, realize waiting to weld the reverse deformation regulation of work piece.

According to a second aspect of the present invention, a welding method of the gantry welding device includes:

clamping a workpiece to be welded through a welding assembly to form a first target to be welded;

welding the first target to be welded through gantry welding equipment, and clamping the other workpiece to be welded through the other assembly welding tool to form a second target to be welded;

after the upper surface of the first target to be welded is welded, the gantry welding equipment moves to the second target to be welded for welding, and meanwhile the first target to be welded is turned over;

after the upper surface of the second target to be welded is welded, the gantry welding equipment moves to the turned first target to be welded for welding, and meanwhile the second target to be welded is turned;

and after the first target to be welded is welded, the gantry welding equipment moves to the overturned second target to be welded for welding until the second target to be welded is welded.

The above technical solutions in the present invention have at least one of the following technical effects: according to the gantry welding device and the welding method, the fixture clamp in gantry welding is subjected to prefabricated reverse deformation, so that small deformation welding is realized, and meanwhile, the requirement of multi-station collaborative operation is met.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the assembly relationship of a gantry welding apparatus provided by the present invention;

FIG. 2 is a second schematic diagram of the assembly relationship of the gantry welding apparatus provided by the present invention;

FIG. 3 is a third schematic diagram of the assembly relationship of the gantry welding apparatus provided by the present invention;

fig. 4 is a schematic diagram of an arrangement relationship of longitudinal beams in the gantry welding device provided by the invention;

FIG. 5 is a schematic diagram of the layout relationship of the cross beams in the gantry welding device provided by the invention;

FIG. 6 is a schematic view of the layout of a support beam assembly in a gantry welding apparatus according to the present invention;

FIG. 7 is a schematic view of the layout of the positioning end assembly, the pushing end assembly and the compressing end in the gantry welding apparatus provided by the present invention;

FIG. 8 is a schematic diagram showing the arrangement relationship of two workpieces to be welded in the gantry welding device provided by the invention;

FIG. 9 is a schematic diagram of the layout of positioning end assemblies in the gantry welding apparatus provided by the present invention;

FIG. 10 is a schematic diagram showing the arrangement of the pushing end assembly in the gantry welding apparatus according to the present invention;

fig. 11 is a schematic diagram of an arrangement relationship of a pressing end in the gantry welding device provided by the invention.

Reference numerals:

10. a track;

20. gantry welding equipment;

30. a workpiece to be welded;

40. a longitudinal beam;

50. a cross beam;

60. a support beam assembly; 61. a support base; 62. a support adjustment section; 63. an elastic support part;

70. positioning the end assembly; 71. positioning an end cross beam; 72. positioning a base; 73. a positioning end adjusting part; 74. positioning an end pressing arm;

80. pushing the end assembly; 81. pushing the end cross beam tightly; 82. pushing the first base tightly; 83. pushing the second base tightly; 84. a pushing end first adjusting part; 85. a pushing end second adjusting part; 86. pushing the end pressing arm tightly; 87. pushing the end pressing block;

90. Compressing the end cross beam; 91. a first base at the pressing end; 92. a first adjusting part of the pressing end; 93. a first pressing arm at the pressing end; 94. a second base at the pressing end; 95. a pressing end second adjusting part; 96. the second pressing arm presses the end; 97. a third base at the pressing end; 98. a third adjusting part of the pressing end; 99. a third pressing arm at the pressing end; 100. a fourth base at the pressing end; 101. a fourth adjusting part of the compressing end; 102. and a fourth pressing arm at the pressing end.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In some embodiments of the present invention, as shown in fig. 1 to 11, the present invention provides a gantry welding apparatus, comprising: the track 10, the gantry welding equipment 20 and the assembly welding tool; the rail 10 is arranged to extend in a first direction; the gantry welding apparatus 20 is slidably disposed on the rail 10; the assembly welding tools are arranged in the welding area of the gantry welding equipment 20 at intervals along the first direction and are used for clamping the workpiece 30 to be welded and preventing the workpiece 30 to be welded from deforming in the welding process; when the gantry welding device 20 welds the workpieces 30 to be welded in one assembly welding tool, the rest of assembly welding tools clamp the rest of workpieces 30 to be welded.

In detail, the invention provides a gantry welding device, which is used for solving the defect that the existing gantry welding product clamp can not meet the production requirement, and realizing small deformation welding by carrying out prefabricated reverse deformation on the tooling clamp in gantry welding, and simultaneously meeting the requirement of multi-station collaborative operation.

It should be noted that, by providing at least two assembly welding tools, the gantry welding device 20 is enabled to weld one assembly welding tool, and at least one other assembly welding tool is enabled to clamp or turn over the workpiece 30 to be welded, so that the utilization rate of the device is improved and waiting is reduced.

In a possible embodiment, the invention adopts a gantry welding structure, the workpiece 30 to be welded is a side wall of a railway vehicle, and a plurality of side walls used by the railway vehicle are welded at the same time and cut after welding, so when a plurality of assembly welding tools are provided, the gantry welding equipment 20 is formed to weld one assembly welding tool, and the rest assembly welding tools carry out various procedures such as clamping, hoisting, overturning, posture adjustment, reverse deformation adjustment and the like, so that the simultaneous performance of various procedures can be realized, and the working efficiency is improved.

In a possible embodiment, as shown in fig. 1, the length of the track 10 provided by the invention is at least 100m, the length of a single section bar is between 16m and 25m, at least 2 welding areas are provided, and a welding tool is arranged in each welding area.

In a possible embodiment, the two gantry welding devices 20 provided by the invention have the length of at least 150m, the length of a single section bar is between 16m and 25m, and at least 6 welding areas are provided, and each welding area is provided with a welding fixture.

In a possible embodiment, the present invention provides a gantry welding apparatus 20 that employs friction stir welding.

In some possible embodiments of the invention, the assembly welding tool comprises: stringers 40, cross beams 50, support beam assemblies 60, locating end assemblies 70, and push end assemblies 80; the longitudinal beams 40 are arranged at intervals, and the longitudinal beams 40 extend along the first direction; the plurality of cross members 50 are spaced apart in the first direction and overlap the side members 40; a plurality of support beam assemblies 60 disposed at intervals in a second direction perpendicular to the first direction and overlapping the cross beam 50 for supporting the workpieces 30 to be welded; the positioning end assembly 70 is arranged at the end part close to one side of the longitudinal beam 40 and is abutted against the workpiece 30 to be welded; the pushing end assembly 80 is disposed near the end of the longitudinal beam 40 opposite to the positioning end assembly 70, and abuts against the workpiece 30 to be welded.

Wherein the push end assembly 80 is capable of adjusting a clamping space for clamping the workpiece 30 to be welded in the first direction.

Specifically, the embodiment provides an implementation manner of the assembly welding tool, and the longitudinal beam 40 and the transverse beam 50 are arranged, so that the overall structure of the assembly welding tool is more stable, and the large-size workpiece 30 to be welded is prevented from moving in the welding process.

Further, the provision of the backbar assembly 60 enables support of the workpiece 30 to be welded from the bottom.

Still further, the positioning end assembly 70 is configured such that the workpiece 30 to be welded can obtain a positioning reference along the first direction, so as to facilitate positioning the workpiece 30 to be welded by the positioning end assembly 70.

Still further, the arrangement of the pushing end assembly 80 realizes the adjustment of the clamping range of the workpiece 30 to be welded, and meets the requirements of clamping the workpiece 30 to be welded with different sizes or certain machining errors.

In some possible embodiments of the present invention, the support beam assembly 60 includes: a support base 61, a support adjustment portion 62, and an elastic support portion 63; the support base 61 is provided on top of the cross beam 50 and extends in the first direction; the support adjusting portion 62 is provided corresponding to the support base 61; the elastic supporting portion 63 is connected to the supporting adjustment portion 62 for abutting against the work piece 30 to be welded.

Wherein the support base 61 is capable of adjusting the relative position to the cross beam 50 in the second direction; the support adjustment portion 62 is capable of adjusting the support height of the elastic support portion 63 with respect to the work piece 30 to be welded.

Specifically, the embodiment provides an implementation of the support beam assembly 60, the support base 61 plays a role in supporting the support adjusting portion 62, and the support adjusting portion 62 can adjust the corresponding support height according to different requirements of the support situation, so as to support the workpiece 30 to be welded through the elastic support portion 63.

In a possible embodiment, the matching surface of the beam 50 and the support base 61 is provided with a sliding rail, and the support base 61 moves along the extending direction of the sliding rail, so as to realize the adjustment of the relative position between the beam 50 and the sliding rail.

In a possible embodiment, a displacement adjustment mechanism may be provided between the support base 61 and the cross beam 50 to enable adjustment of the relative position of the support base 61 by the displacement adjustment mechanism.

In possible embodiments, the displacement adjustment mechanism of the support base 61 includes forms of gear transmission, belt transmission, electromagnetic induction, electric drive, hydraulic drive, and the like.

In a possible embodiment, the support adjustment 62 is a telescoping mechanism with adjustable support height.

In a possible embodiment, the telescopic mechanism for adjusting the height of the support adjusting portion 62 is any one or a combination of several of a lifting table, an air cylinder, a hydraulic cylinder and an electric cylinder.

In some possible embodiments of the present invention, the positioning end assembly 70 includes: a positioning end beam 71, a positioning base 72, a positioning end adjusting portion 73, and a positioning end pressing arm 74; the positioning end cross member 71 is provided at one side end portion near the side member 40 in the second direction; a plurality of positioning bases 72 slidably fit with the top of the positioning end beam 71 in the second direction; the positioning end adjusting part 73 is connected with the positioning base 72; one end of the positioning end pressing arm 74 is connected to the positioning end adjusting portion 73, and the other end of the positioning end pressing arm 74 is used for abutting against the upper surface of the workpiece 30 to be welded.

Wherein, the positioning end adjusting part 73 is used for adjusting the relative position height of the positioning end pressing arm 74 along the vertical direction and the rotation angle along the horizontal direction.

Specifically, the embodiment provides an implementation of the positioning end assembly 70, and by setting the positioning end beam 71 and the positioning base 72, a reference for providing end positioning for the workpiece 30 to be welded is realized, so that the clamping of the workpiece 30 to be welded on the assembly welding tool is satisfied.

Further, by the arrangement of the positioning end adjusting part 73, the adjustment of the pressing height and the pressing position of the positioning end pressing arm 74 is realized, and the pressing requirement of the surface of the workpiece 30 to be welded is met.

In a possible embodiment, the matching surface of the positioning end beam 71 and the positioning base 72 is provided with a sliding rail, and the positioning base 72 moves along the extending direction of the sliding rail, so that the relative position between the positioning end beam 71 and the positioning end beam is adjusted.

In a possible embodiment, a displacement adjustment mechanism may be provided between the positioning base 72 and the positioning end beam 71 to enable adjustment of the relative position of the positioning base 72 by the displacement adjustment mechanism.

In possible embodiments, the displacement adjustment mechanism of the positioning base 72 includes forms of gear drive, belt drive, electromagnetic induction, electric drive, hydraulic drive, and the like.

In a possible embodiment, the positioning end adjusting portion 73 is a telescopic mechanism that can adjust the height of the positioning end pressing arm 74.

In a possible embodiment, the telescopic mechanism for adjusting the height of the positioning end adjusting portion 73 is any one or a combination of several of a lifting table, an air cylinder, a hydraulic cylinder and an electric cylinder.

In some possible embodiments of the present invention, the push-up end assembly 80 includes: a pushing end beam 81, a pushing first base 82, a pushing second base 83, a pushing end first adjusting portion 84, a pushing end second adjusting portion 85, a pushing end pressing arm 86, and a pushing end pressing block 87; the pushing end cross member 81 is disposed in the second direction at an end portion adjacent to the opposite side of the longitudinal member 40 from the positioning end assembly 70; a plurality of push first bases 82 slidably engaged with the top of the push end cross member 81 in the second direction; the pushing second base 83 is slidably engaged with the top of the pushing first base 82 in the first direction; the pushing end first adjusting part 84 is arranged at one side end part of the pushing first base 82 and is connected with the pushing second base 83 so as to adjust the relative position of the pushing second base 83 in the first direction; the pushing end second adjusting part 85 and the pushing second base 83; one end of the pushing end pressing arm 86 is connected with the pushing end second adjusting part 85, and the other end of the pushing end pressing arm 86 is used for abutting against the upper surface of the workpiece 30 to be welded; the pushing end pressing block 87 is disposed on a side of the pushing second base 83 facing the positioning end assembly 70, and is used for abutting against a side of the workpiece 30 to be welded.

Wherein, the second adjusting part 85 is used for adjusting the relative position height of the pressing arm 86 along the vertical direction and the rotation angle along the horizontal direction.

Specifically, the embodiment provides an implementation manner of the pushing end assembly 80, and by setting the pushing end beam 81, the pushing first base 82 and the pushing second base 83, adjustment of clamping space of the workpiece 30 to be welded along the first direction is achieved, and clamping requirements of workpieces 30 to be welded with different sizes are met.

Further, through sliding arrangement between the pushing end cross beam 81 and the pushing first base 82, adjustment of displacement of the pushing first base 82 in the second direction is achieved, meanwhile, the pushing second base 83 can adjust the pushing first base 82 along the first direction, and adjustment of clamping spaces of workpieces 30 to be welded in different sizes is achieved.

Further, the first adjustment portion 84 of the pushing end provides power for the movement of the second base 83 along the first direction, and the second adjustment portion 85 of the pushing end adjusts the pressing height and the pressing position of the pressing arm 86 of the pushing end, so as to meet the pressing requirement of the surface of the workpiece 30 to be welded.

Still further, the pushing end pressing block 87 abuts against the side of the workpiece 30 to be welded after the clamping space is adjusted, so as to position the workpiece 30 to be welded.

In a possible embodiment, the surface of the pushing end press block 87 abutting against the workpiece 30 to be welded is provided with a vibration damping structure, avoiding hard contact of the pushing end press block 87 with the workpiece 30 to be welded.

In a possible embodiment, the pushing end first adjusting portion 84 is any one of a cylinder, a hydraulic cylinder, and an electric cylinder.

In a possible embodiment, the pushing end second adjusting portion 85 is a telescopic mechanism capable of adjusting the height of the pushing end pressing arm 86.

In a possible embodiment, the telescopic mechanism of which the height is adjusted by the pushing end second adjusting part 85 is any one or a combination of a plurality of lifting tables, air cylinders, hydraulic cylinders and electric cylinders.

In a possible embodiment, the upper surfaces of the pushing end beam 81 and the pushing first base 82 are provided with sliding rails, so as to realize adjustment of the relative positions of the pushing first base 82 and the pushing second base 83.

In a possible embodiment, a displacement adjustment mechanism may be provided between the push end rail 81 and the push first base 82 to enable adjustment of the relative position of the positioning base 72 via the displacement adjustment mechanism.

In possible embodiments, the displacement adjustment mechanism that pushes against the first base 82 includes forms of gear drive, belt drive, electromagnetic induction, electric drive, hydraulic drive, and the like.

In a possible embodiment, the pushing end pressing arm 86 is an electric telescopic arm with adjustable extension length, and a pressing head for pressing the workpiece 30 to be welded is arranged on the pushing end pressing arm 86.

In some possible embodiments of the present invention, the assembly welding tool further includes: a pressing end cross beam 90, a pressing end first base 91, a pressing end first adjusting portion 92, and a pressing end first pressing arm 93; the pressing end cross beam 90 is located at the side of the workpiece 30 to be welded and is arranged at the top of two adjacent longitudinal beams 40 along the second direction; the pressing end first base 91 is slidably engaged with the top of the pressing end cross beam 90 in the second direction; the pressing end first adjusting portion 92 is connected to the pressing end first base 91; one end of the pressing end first pressing arm 93 is connected with the pressing end first adjusting portion 92, and the other end of the pressing end first pressing arm 93 is used for being abutted against the upper surface of the workpiece 30 to be welded.

Wherein, the first pressing end adjusting portion 92 is used for adjusting the height of the relative position of the first pressing arm 93 along the vertical direction and the rotation angle in the horizontal direction; the first pressing arm 93 of the pressing end is an adjusting arm with adjustable length.

Specifically, the embodiment provides an implementation manner of lateral compaction, which is implemented by arranging a compaction end cross beam 90, a compaction end first base 91, a compaction end first adjusting portion 92 and a compaction end first pressing arm 93 on the lateral part of the workpiece 30 to be welded, so that a compaction force is applied to the lateral part of the workpiece 30 to be welded along the first direction, and the compaction of the length direction of the workpiece 30 to be welded is satisfied.

In a possible embodiment, the top of the pressing end beam 90 is provided with a sliding rail, and the pressing end first base 91 is slidably connected with the top of the pressing end beam 90 through the sliding rail, so as to further compress the upper surface of the workpiece 30 to be welded from different positions from the side.

In a possible embodiment, the top of the pressing end cross beam 90 is provided with a limiting mechanism for limiting the displacement of the pressing end first base 91 in the second direction, and the pressing end first base 91 is positioned by the limiting mechanism after being manually adjusted to the corresponding position.

In a possible embodiment, the limiting mechanism is a limiting jackscrew disposed on two sides of the first base 91 of the pressing end along the second direction.

In a possible embodiment, the pressing end first adjusting portion 92 is a telescopic mechanism capable of adjusting the height of the pressing end first pressing arm 93.

In a possible embodiment, the telescopic mechanism of which the height is adjusted by the pressing end first adjusting part 92 is any one or a combination of a plurality of lifting tables, air cylinders, hydraulic cylinders and electric cylinders.

In a possible embodiment, the first pressing arm 93 is an electric telescopic arm with adjustable extension length, and a pressing head for pressing the workpiece 30 to be welded is disposed on the first pressing arm 93.

In a possible embodiment, the maximum pressure of the pressing head of the pressing-end first pressing arm 93 is not less than 40KN, and is adjustable according to the relative height between the pressing-end first pressing arm 93 and the work piece 30 to be welded.

In some possible embodiments of the present invention, the assembly welding tool further includes: a pressing end second base 94, a pressing end second adjusting portion 95, and a pressing end second pressing arm 96; the hold-down end second base 94 is in sliding engagement with the side of the hold-down end beam 90 in the second direction; the pressing end second adjusting part 95 is connected with the pressing end second base 94; one end of the pressing end second pressing arm 96 is connected with the pressing end second adjusting portion 95, and the other end of the pressing end second pressing arm 96 is used for being abutted against the upper surface of the workpiece 30 to be welded.

The pressing end second adjusting part 95 is used for adjusting the height of the relative position of the pressing end second pressing arm 96 along the vertical direction and the rotation angle of the pressing end second pressing arm in the horizontal direction; the second pressing arm 96 of the pressing end is an adjusting arm with adjustable length; the arm extension of the second pressing arm 96 at the pressing end is larger than that of the first pressing arm 93 at the pressing end; the pressing force of the pressing end second pressing arm 96 is larger than the pressing force of the pressing end first pressing arm 93.

Specifically, this embodiment provides another implementation manner of lateral part compaction, and the arrangement of the second base 94 at the compaction end, the second adjusting portion 95 at the compaction end, and the second pressing arm 96 at the compaction end meets the requirement of performing large-scale compaction from the lateral part of the workpiece 30 to be welded, and meanwhile, in the welding process of the gantry welding apparatus 20, the adjustment of the compaction position is realized through the second base 94 at the compaction end, the second adjusting portion 95 at the compaction end, and the second pressing arm 96 at the compaction end, so as to realize the adjustment of the reverse deformation of the workpiece 30 to be welded.

In a possible embodiment, the side portion of the pressing end beam 90 is provided with a sliding rail, and the pressing end second base 94 is slidably connected with the side portion of the pressing end beam 90 through the sliding rail, so as to further press the upper surface of the workpiece 30 to be welded from different positions from the side portion.

In a possible embodiment, the compression end second base 94 is adjusted by a displacement adjustment mechanism to displace the compression end beam 90 side in a second direction.

In a possible embodiment, the displacement adjustment mechanism of the compression end second base 94 includes forms of gear drive, belt drive, electromagnetic induction, electric drive, hydraulic drive, and the like.

In a possible embodiment, the pressing end second adjusting portion 95 is a telescopic mechanism that can adjust the height of the pressing end second pressing arm 96.

In a possible embodiment, the adjustment of the angle of the adjustment height of the second pressing end adjusting part 95 is realized through a transmission mechanism formed by a motor and a gear, the motor transmits power to a corresponding connecting rod through the gear, and the connecting rod drives the second pressing end arm 96 to rotate, so that the adjustment of the angle is realized.

In a possible embodiment, the telescopic mechanism of the pressing end second adjusting part 95 for adjusting the height is any one or a combination of a plurality of lifting tables, air cylinders, hydraulic cylinders and electric cylinders.

In a possible embodiment, the second pressing arm 96 is an electric telescopic arm with adjustable extension length, and the first pressing arm 93 is provided with a pressing head for pressing the workpiece 30 to be welded.

In a possible embodiment, the maximum pressure of the pressing head of the pressing end second pressing arm 96 is not less than 40KN, and is adjustable according to the relative height between the pressing end second pressing arm 96 and the work piece 30 to be welded.

In some possible embodiments of the present invention, two workpieces 30 to be welded are clamped in the assembly welding tool at intervals along the second direction; the assembly welding tool further comprises: a pressing end third base 97, a pressing end third adjusting portion 98, and a pressing end third pressing arm 99; the third base 97 of the pressing end is arranged at the top of the longitudinal beam 40 between the two workpieces 30 to be welded; the third pressing end adjusting part 98 is connected with the third pressing end base 97; the third pressing arm 99 of the pressing end is connected with the third adjusting part 98 of the pressing end, and two side ends of the third pressing arm 99 of the pressing end are respectively abutted with the upper surfaces of the two workpieces 30 to be welded.

Wherein, the third adjusting part 98 of the pressing end is used for adjusting the height of the relative position of the third pressing arm 99 of the pressing end along the vertical direction and the rotation angle in the horizontal direction; the third pressing arm 99 of the pressing end is an adjusting arm with adjustable length.

Specifically, this embodiment provides an embodiment of middle part compaction, and when the third base 97 of the compaction end, the third adjusting portion 98 of the compaction end and the third pressing arm 99 of the compaction end meet that the two workpieces 30 to be welded are arranged at intervals along the second direction, the problem that the compaction force at the top of the workpieces 30 to be welded is insufficient due to the interval distance between the two workpieces 30 to be welded is solved, and the adjustment of the reverse deformation of the workpieces 30 to be welded is realized by arranging the third base 97 of the compaction end, the third adjusting portion 98 of the compaction end and the third pressing arm 99 of the compaction end between the two workpieces 30 to be welded.

In a possible embodiment, the third pressing end adjusting portion 98 is a telescopic mechanism capable of adjusting the height of the third pressing end arm 99.

In a possible embodiment, the telescopic mechanism of the third adjusting part 98 of the pressing end for adjusting the height is any one or a combination of a plurality of lifting table, air cylinder, hydraulic cylinder and electric cylinder.

In a possible embodiment, the third pressing arm 99 at the pressing end is an electric telescopic arm with an adjustable extension length, and the third pressing arm 99 at the pressing end can be adjusted back and opposite to each other so as to realize simultaneous pressing of two adjacent workpieces 30 to be welded, and a pressing head for pressing the workpieces 30 to be welded is arranged on the third pressing arm 99 at the pressing end.

In a possible embodiment, the maximum pressure of the pressing head of the third pressing arm 99 is not less than 40KN, and is adjustable according to the relative height between the third pressing arm 99 and the workpiece 30 to be welded.

In some possible embodiments of the present invention, the assembly welding tool further includes: a pressing end fourth base 100, a pressing end fourth adjusting portion 101, and a pressing end fourth pressing arm 102; the fourth base 100 of the pressing end is arranged at the top of the longitudinal beam 40 between the two workpieces 30 to be welded and is positioned between the third bases 97 of the adjacent two pressing ends; the fourth pressing end adjusting part 101 is connected with the fourth pressing end base 100; the fourth pressing arm 102 of the pressing end is connected with the fourth adjusting part 101 of the pressing end, and two side ends of the fourth pressing arm 102 of the pressing end are respectively abutted with the upper surfaces of the two workpieces 30 to be welded.

The fourth adjusting part 101 of the pressing end is used for adjusting the height of the relative position of the fourth pressing arm 102 of the pressing end along the vertical direction and the rotation angle of the fourth pressing arm along the horizontal direction; the fourth pressing arm 102 of the pressing end is an adjusting arm with adjustable length; the arm extension of the fourth pressing arm 102 at the pressing end is larger than that of the third pressing arm 99 at the pressing end; the pressing force of the pressing end fourth pressing arm 102 is larger than the pressing force of the pressing end third pressing arm 99.

Specifically, this embodiment provides another embodiment of middle part compaction, and when the fourth base 100 at the compaction end, the fourth adjusting part 101 at the compaction end, and the fourth pressing arm 102 at the compaction end meet that two workpieces 30 to be welded are arranged at intervals along the second direction, the problem that the compaction force at the top of the workpieces 30 to be welded is insufficient is caused due to the interval distance between the two workpieces 30 to be welded, and meanwhile, the arm expansion and the compaction force of the fourth pressing arm 102 at the compaction end are larger, so that the requirement of performing large-scale compaction between two adjacent workpieces 30 to be welded is met, and the adjustment of the reverse deformation of the workpieces 30 to be welded is realized.

In a possible embodiment, the fourth pressing end adjusting part 101 is a telescopic mechanism capable of adjusting the height of the fourth pressing end arm 102.

In a possible embodiment, the telescopic mechanism of the fourth adjusting part 101 at the pressing end for adjusting the height is any one or a combination of a plurality of lifting tables, air cylinders, hydraulic cylinders and electric cylinders.

In a possible embodiment, the fourth pressing arm 102 at the pressing end is an electric telescopic arm with an adjustable extension length, and the fourth pressing arm 102 at the pressing end can be adjusted back to and opposite to each other so as to realize simultaneous pressing of two adjacent workpieces 30 to be welded, and a pressing head for pressing the workpieces 30 to be welded is arranged on the fourth pressing arm 102 at the pressing end.

In a possible embodiment, the maximum pressure of the pressing head of the fourth pressing arm 102 is not less than 40KN, and is adjustable according to the relative height between the fourth pressing arm 102 and the workpiece 30 to be welded.

In some embodiments of the present invention, the welding method of the gantry welding device provided in the present invention includes:

clamping a workpiece 30 to be welded through a welding tool to form a first target to be welded;

welding a first target to be welded through the gantry welding equipment 20, and clamping another workpiece 30 to be welded through another assembly welding tool to form a second target to be welded;

after the upper surface of the first target to be welded is welded, the gantry welding equipment 20 moves to the second target to be welded for welding, and meanwhile, the first target to be welded is turned over;

after the upper surface of the second target to be welded is welded, the gantry welding equipment 20 moves to the turned first target to be welded for welding, and meanwhile, the second target to be welded is turned;

after the first target to be welded is welded, the gantry welding equipment 20 moves to the overturned second target to be welded for welding until the second target to be welded is welded.

In a possible embodiment, the welding method provided by the scheme is friction stir welding.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "manner," "particular modes," or "some modes," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or mode is included in at least one embodiment or mode of the embodiments of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or manner. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or ways. Furthermore, various embodiments or modes and features of various embodiments or modes described in this specification can be combined and combined by those skilled in the art without mutual conflict.

Finally, it should be noted that: the above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and it is intended to be covered by the scope of the claims of the present invention.

Claims

1. A gantry welding apparatus, comprising: track, gantry welding equipment and assembly welding tool;

the track extends along a first direction; the gantry welding equipment is arranged on the track in a sliding manner; the assembly welding tools are arranged in the welding area of the gantry welding equipment at intervals along the first direction and are used for clamping the workpieces to be welded and preventing the workpieces to be welded from deforming in the welding process; when the gantry welding equipment welds the workpieces to be welded in one assembly welding tool, the rest assembly welding tools clamp the rest workpieces to be welded;

the assembly welding tool comprises: the device comprises longitudinal beams, cross beams, support beam assemblies, positioning end assemblies and pushing end assemblies; the longitudinal beams are arranged at intervals and extend along the first direction; the cross beams are arranged at intervals along the first direction and overlap with the longitudinal beams; the support beam assemblies are arranged at intervals along a second direction perpendicular to the first direction and overlap with the cross beam for supporting the workpiece to be welded; the positioning end assembly is arranged at the end part close to one side of the longitudinal beam and is abutted against the workpiece to be welded; the pushing end assembly is arranged near the end part of the longitudinal beam opposite to the other side of the positioning end assembly and is abutted against the workpiece to be welded; the pushing end assembly can adjust a clamping space for clamping the workpiece to be welded along the first direction;

The support beam assembly includes: a support base, a support adjustment portion, and an elastic support portion; the support base is arranged at the top of the cross beam and extends along the first direction; the support adjusting part is arranged corresponding to the support base; the elastic supporting part is connected with the supporting and adjusting part and is used for abutting against the workpiece to be welded; wherein the support base is capable of adjusting a relative position with the cross beam along the second direction; the support adjusting part can adjust the support height of the elastic support part relative to the workpiece to be welded.

2. The gantry welding apparatus of claim 1, wherein the positioning end assembly comprises: the positioning end beam positioning base, the positioning end adjusting part and the positioning end pressing arm;

the positioning end adjusting part is connected with the positioning base;

3. The gantry welding apparatus of claim 1, wherein the push-on end assembly comprises: the device comprises a pushing end cross beam, a pushing first base, a pushing second base, a pushing end first adjusting part, a pushing end second adjusting part, a pushing end pressing arm and a pushing end pressing block;

4. A gantry welding apparatus according to any one of claims 1 to 3, wherein the assembly welding fixture further comprises: the device comprises a compression end cross beam, a compression end first base, a compression end first adjusting part and a compression end first pressing arm;

5. The gantry welding apparatus of claim 4, wherein the assembly welding fixture further comprises: the second base of the pressing end, the second adjusting part of the pressing end and the second pressing arm of the pressing end;

6. A gantry welding apparatus according to any one of claims 1 to 4, wherein two workpieces to be welded are mounted in the assembly welding tool at intervals along the second direction;

7. The gantry welding apparatus of claim 6, wherein the assembly welding fixture further comprises: the pressing end comprises a fourth base, a fourth pressing end adjusting part and a fourth pressing arm;

8. A welding method of a gantry welding apparatus as claimed in any one of the preceding claims 1 to 7, comprising: