CN111716027A - Auxiliary equipment and method for long straight weld joint welding - Google Patents
Auxiliary equipment and method for long straight weld joint welding Download PDFInfo
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- CN111716027A CN111716027A CN202010419774.3A CN202010419774A CN111716027A CN 111716027 A CN111716027 A CN 111716027A CN 202010419774 A CN202010419774 A CN 202010419774A CN 111716027 A CN111716027 A CN 111716027A
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- welding
- sleeper beam
- beam profile
- long straight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides auxiliary equipment and a method for welding a long straight weld joint, belonging to the technical field of welding equipment and comprising a chassis, a height adjusting platform, a supporting structure, a first distance meter and a second distance meter, wherein the height adjusting platform is arranged on the chassis; the supporting structure is fixedly arranged on one side of the height adjusting platform; the first distance meter and the second distance meter are both arranged; the sleeper beam profile is welded by means of auxiliary equipment, the rib plates are welded firstly, then the reinforcing plates are welded, welding deformation of the reinforcing plates in the free state of the lower cover plate is reduced, and then welding operation of 25V welding seams of the lower cover plate and 14V welding seams of the upper cover plate is finished alternately by overturning the sleeper beam profile for multiple times, so that welding residual stress generated in the welding process is fully released, and the welding quality of the sleeper beam profile is improved; according to the auxiliary equipment and the method for welding the long straight weld joint, provided by the invention, the welding deformation of the upper cover plate and the lower cover plate in the welding process can be reduced, the residual stress is eliminated, and the welding efficiency and the welding quality are improved.
Description
Technical Field
The invention belongs to the technical field of welding equipment, and particularly relates to auxiliary equipment and a method for welding a long straight weld joint.
Background
The sleeper beam is used as a key bearing aluminum alloy part on the underframe of the subway vehicle and mainly comprises an upper cover plate, a lower cover plate, a sleeper beam reinforcing plate and a sleeper beam rib plate. The sleeper beam is a cross part for simultaneously bearing longitudinal force and vertical force on the vehicle body, and the safety and reliability of vehicle operation are closely related to the service life of the sleeper beam.
The welding seam form of the sleeper beam is single, and the sleeper beam mainly comprises a small number of hidden welding seams in the cavity and long and straight butt welding seams of the upper cover plate and the lower cover plate. When the sleeper beam is welded, six groups of outer pressure arms and middle pressure arms are adopted to press the sleeper beam section in order to reduce transverse and longitudinal welding deformation. Although welding deformation can be controlled to a certain degree by the six groups of outer pressure arms and the middle pressure arm, a welder is hindered by the pressure arms during welding, so that more welding joints are formed, the polishing time of the welding joints is prolonged, the working efficiency is reduced, and the welding quality of workpieces is reduced.
Disclosure of Invention
The invention aims to provide auxiliary equipment and a method for welding a long straight weld joint, and aims to solve the technical problems that the efficiency of welding a sleeper beam is low and the welding quality is influenced in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: provided is an auxiliary device for long straight weld welding, comprising:
the chassis is provided with a plurality of travelling wheels; the chassis is used for being placed on one side of the sleeper beam tool;
the height adjusting platform is arranged on the chassis;
the supporting structure is fixedly arranged on one side of the height adjusting table and used for supporting workers;
the first distance meter is arranged on the chassis and used for monitoring the distance between the chassis and the sleeper beam tool;
and the second distance meter is arranged on the chassis and positioned below the supporting structure and used for monitoring the height of the supporting structure.
As another embodiment of the present application, the height adjusting stage includes:
the lifting platform is fixedly arranged on the chassis;
the mounting table is fixedly arranged on the lifting table; the supporting structure is fixedly arranged on one side of the mounting table.
As another embodiment of the application, two supporting rods which are arranged in parallel at intervals are arranged on the mounting platform, and one end of each supporting rod at the same side extends out of the mounting platform; the supporting structure is fixedly connected with one ends of the two supporting rods.
As another embodiment of the present application, the support structure includes:
the back plate is fixed on one side of the height adjusting platform;
the transverse plate is fixedly arranged on one side, away from the height adjusting platform, of the back plate and used for supporting workers.
As another embodiment of the present application, a counterweight is disposed on a side of the chassis away from the support structure.
As another embodiment of the present application, the first distance meter and the second distance meter are both laser distance meters; the two first distance measuring instruments are respectively arranged at the front end and the rear end of the chassis.
As another embodiment of the present application, the required distance between the auxiliary equipment and the bolster profile is set to be S, the front end of the auxiliary equipment is set to be S1, the rear end of the auxiliary equipment is set to be S2, and when S1 is S2 is S, the position of the auxiliary equipment is determined; when S1 is greater than S, S2 is greater than S, the front end and the rear end of the auxiliary equipment move close to the sleeper beam profile; when S1 is greater than S and S2< S, the front end of the auxiliary equipment moves close to the sleeper beam profile, and the rear end moves away from the sleeper beam profile; when S1< S; s2> S; the front end of the auxiliary equipment moves away from the sleeper beam profile, and the rear end of the auxiliary equipment moves close to the sleeper beam profile; when S1< S and S2< S, the front end and the rear end of the auxiliary equipment move away from the sleeper beam profile; and after the distance between the auxiliary equipment and the sleeper beam profile is adjusted, starting the height adjusting platform, adjusting the heights of the height adjusting platform and the supporting structure, and driving the height adjusting platform to ascend or descend by using data measured by the second distance measuring instrument so as to determine the height of the supporting structure as the height H required by work.
The auxiliary equipment for welding the long straight weld seam provided by the invention has the beneficial effects that: compared with the prior art, the auxiliary equipment for welding the long and straight weld joint is characterized in that a worker drives the travelling wheels to drive the chassis to move to one side of the sleeper profile and sit on the supporting structure, the distance between the worker and the sleeper profile is adjusted according to the position of the pressure wall and the distance between the chassis and the sleeper profile monitored by the first distance meter, and the height of the supporting structure is adjusted according to the position of the pressure wall and the distance between the second distance meter and the supporting structure, so that the worker can conveniently drive the chassis to horizontally move and the supporting structure to vertically move by means of the travelling wheels.
Another object of the present invention is to provide a method for long straight weld welding, including any one of the above auxiliary apparatuses for long straight weld welding, further including:
installing a lower cover plate on the sleeper beam profile, pressing the sleeper beam profile by using a pressing wall, and performing point-fixing welding;
turning over the sleeper beam profile, welding rib plates on two sides of the lower cover plate, and welding reinforcing plates on the lower cover plate, wherein the reinforcing plates are positioned between the rib plates;
turning over the sleeper beam profile and driving two auxiliary devices for welding the long straight weld joints to move to the middle position of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld to move from the middle position to two ends of the sleeper beam profile and bottoming and welding the lower cover plate and the sleeper beam profile;
turning over the sleeper beam profile, mounting an upper cover plate on the sleeper beam profile, and pressing by using a pressing wall; driving two auxiliary devices for welding the long straight weld joints to move to the middle position of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld to move from the middle position to two ends of the sleeper beam profile and bottoming and welding the upper cover plate and the sleeper beam profile;
turning over the sleeper beam profile, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld joint to move from two ends of the sleeper beam profile to the middle position, and performing cover surface and filling welding on the lower cover plate and the sleeper beam profile;
turning over the sleeper beam profile, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile; and then driving the auxiliary equipment for welding the long straight weld joint to move from two ends of the sleeper beam profile to the middle position, and performing cover surface and filling welding on the upper cover plate and the sleeper beam profile.
As another embodiment of the present application, when backing welding is performed on the lower cover plate and the sleeper beam profile, two auxiliary devices for welding the long straight weld joints are driven to move to the middle position of one side of the sleeper beam profile and weld the other side of the lower cover plate and the sleeper beam profile; and then driving two auxiliary devices for welding the long straight weld to move to the middle position of the other side of the sleeper beam profile and welding the lower cover plate and one side of the sleeper beam profile.
As another embodiment of the present application, when backing welding is performed on the upper cover plate and the sleeper beam profile, two auxiliary devices for welding the long straight weld joints are driven to move to the middle position of one side of the sleeper beam profile and weld the other side of the upper cover plate and the sleeper beam profile; and then driving two auxiliary devices for welding the long straight weld to move to the middle position of the other side of the sleeper beam profile and welding the upper cover plate and one side of the sleeper beam profile.
According to the method for welding the long straight weld joint, provided by the invention, a worker is positioned on one side of the sleeper beam profile by virtue of auxiliary equipment for welding the long straight weld joint, and the movement is flexible and rapid; by welding the rib plate on the lower cover plate in advance and then welding the reinforcing plate on the lower cover plate, the welding deformation of the welding reinforcing plate when the lower cover plate is in a free state is reduced; then, the welding operation of a 25V welding seam of the lower cover plate and a 14V welding seam of the upper cover plate is alternately finished by turning the sleeper beam profile for multiple times, so that the welding residual stress generated in the welding process is fully released, and the welding quality of the upper cover plate and the lower cover plate with the sleeper beam profile respectively is improved; meanwhile, the backing welding between the upper cover plate, the lower cover plate and the sleeper beam profile adopts a sequence from the middle to the two ends, and the capping and filling welding selects a sequence from the two ends to the middle, so that the welding seam is cooled relatively uniformly, the distribution state of welding residual stress is improved, the welding deformation is reduced, the continuity of welding operation can be effectively ensured and the obstruction of a pressing wall to workers can be avoided through the mode, meanwhile, the welding deformation of the upper cover plate and the lower cover plate in the welding process can be reduced, and the welding efficiency and the welding quality are improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an auxiliary device for welding a long straight weld according to an embodiment of the present invention;
FIG. 2 is a first schematic diagram of a method for welding a long straight weld according to an embodiment of the present invention;
FIG. 3 is a second schematic diagram of a method for welding a long straight weld according to an embodiment of the present invention;
FIG. 4 is a third schematic diagram of a method for welding a long straight weld according to an embodiment of the present invention;
FIG. 5 is a fourth schematic diagram of a method for welding a long straight weld according to an embodiment of the present invention;
FIG. 6 is a control logic diagram of an auxiliary device for welding a long straight weld according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1. a chassis; 11. a traveling wheel; 12. a first range finder; 13. a second rangefinder; 14. a balancing weight; 2. a height adjustment stage; 21. a lifting platform; 22. an installation table; 23. a support bar; 3. a support structure; 31. a back plate; 32. a transverse plate; 4. a sleeper beam profile; 5. a lower cover plate; 51. a rib plate; 52. a reinforcing plate; 6. and an upper cover plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 6, the auxiliary equipment for welding a long straight weld seam according to the present invention will now be described. An auxiliary device for welding a long straight weld joint comprises a chassis 1, a height adjusting platform 2, a supporting structure 3, a first distance meter 12 and a second distance meter 13, wherein the chassis 1 is provided with a plurality of travelling wheels 11; the chassis 1 is used for being placed on one side of the sleeper beam tool; the height adjusting platform 2 is arranged on the chassis 1; the supporting structure 3 is fixedly arranged on one side of the height adjusting platform 2 and used for supporting workers; the first distance meter 12 is arranged on the chassis 1 and used for monitoring the distance between the chassis 1 and the sleeper beam tool; the second distance meter 13 is arranged on the chassis 1 and below the support structure 3 for monitoring the height of the support structure 3.
Compared with the prior art, the auxiliary equipment for welding the long straight weld joint, provided by the invention, has the advantages that a worker drives the travelling wheels 11 to drive the chassis 1 to move to one side of a sleeper profile and sit on the supporting structure 3, the distance between the staff and the sleeper beam profile 4 is adjusted according to the position of the pressing wall and the distance between the chassis 1 and the sleeper beam profile 4 monitored by the first distance meter 12, and the height of the supporting structure 3 is adjusted according to the position of the pressing wall and the distance between the second distance meter 13 and the supporting structure 3, so that the worker can conveniently drive the chassis 1 to horizontally move and the supporting structure 3 to vertically move by means of the travelling wheels 11, by the mode, the worker can flexibly change the horizontal position and the vertical position of the worker according to the position of the pressing beam, and then avoided the pressure beam to the hindrance of staff, made welding operation can go on in succession, improved staff's welding efficiency and welding quality.
In the following description of the present application, the cover plate 25V weld and the upper cover plate 14V weld are taken as examples, and in order to reduce the transverse and longitudinal welding deformation during sleeper beam welding, a plurality of sets of pressure arms are firstly adopted to be respectively fixed in the middle and two ends of the sleeper beam profile 4.
Referring to fig. 1, as a specific embodiment of the auxiliary apparatus for welding a long straight weld according to the present invention, the height adjusting platform 2 includes a lifting platform 21 and an installation platform 22, the lifting platform 21 is fixedly disposed on the chassis 1; the mounting table 22 is fixedly arranged on the lifting table 21; supporting structure 3 sets firmly in one side of mount table 22, with elevating platform 21 fixed mounting on chassis 1 to be fixed in the free end of elevating platform 21 with mount table 22, the staff starts elevating platform 21 control mount table 22 and fixes the supporting structure 3 on mount table 22 and rises or descend according to the data that second distancer 13 monitored, and then adjusts staff's height, is fit for carrying out welding operation. The lift table 21 may employ a scissor lift or a screw lift.
Referring to fig. 1, as a specific embodiment of the auxiliary apparatus for welding a long straight weld according to the present invention, two support rods 23 are disposed on the mounting table 22 at intervals in parallel, and one end of each support rod 23 on the same side extends out of the mounting table 22; supporting structure 3 and the one end fixed connection of two bracing pieces 23 set up two bracing pieces 23 and fix on mount table 22 to outside mount table 22 was stretched out to the one end of bracing piece 23, and with the one end fixed connection that supporting structure 3 and two bracing pieces 23 stretched out, reached fixed support structure 3's purpose. Two support rods 23 are spaced apart and located at the front and rear ends of the mounting table 22, respectively, to stably support the support structure 3.
Referring to fig. 1, as a specific embodiment of the auxiliary apparatus for welding a long straight weld according to the present invention, the supporting structure 3 includes a back plate 31 and a transverse plate 32, the back plate 31 is fixed to one side of the height adjusting table 2; the transverse plate 32 is fixedly arranged on one side, far away from the height adjusting platform 2, of the back plate 31 and used for supporting a worker, the worker drives the chassis 1 to move to one side of the sleeper beam profile 4 by means of the traveling wheels 11, the transverse plate 32 is arranged close to the sleeper beam profile 4, the worker sits on the transverse plate 32 and leans against the back plate 31, and the lower cover plate 5, the upper cover plate 6 and the sleeper beam profile 4 can be welded and fixed comfortably and conveniently.
Referring to fig. 1, as a specific embodiment of the auxiliary equipment for welding a long straight weld according to the present invention, a counterweight 14 is disposed on one side of the chassis 1 away from the supporting structure 3, and when a worker sits on the horizontal plate 32, the center of the whole auxiliary equipment may be shifted and may easily topple over, so that the counterweight 14 is disposed on the other side of the chassis 1, the whole auxiliary equipment may be effectively balanced, and the worker may work safely and stably. The weight block 14 can be set to be adjustable, and the weight block 14 can be added or increased according to the change of the weight of different workers.
Referring to fig. 1, as a specific embodiment of the auxiliary apparatus for welding a long straight weld according to the present invention, the first distance meter 12 and the second distance meter 13 are both laser distance meters; the two first distance measuring instruments 12 are respectively arranged at the front end and the rear end of the chassis 1, and the two first distance measuring instruments 12 are respectively fixedly arranged at the front end and the rear end of the chassis 1; the laser rangefinder is light in weight and small in size, so that it is convenient to mount on the chassis 1, and the first rangefinder 12 and the second rangefinder 13 occupy a small space. The laser range finder is simple to operate, fast and accurate, and has an error of only one fifth to one hundred times that of other optical range finders. The first distance measuring instruments 12 are located below the transverse plate 32, the distances between the front first distance measuring instruments 12 and the back first distance measuring instruments 12 and the sleeper beam profile 4 are respectively detected, the length direction of the chassis 1 is parallel to the length direction of the sleeper beam profile 4, welding operation of workers is guaranteed to be smoothly conducted, and welding quality is good. The staff member sits on the cross plate 32 of the auxiliary device and reaches the left and right side equilibrium state by increasing or decreasing the clump weight 14. furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 and 6, as a specific embodiment of the auxiliary equipment for welding the long straight weld according to the present invention, a distance required by the auxiliary equipment for welding to a worker of the bolster profile 4 is set to be S, a distance from a front end of the auxiliary equipment to the bolster profile 4 is set to be S1, a distance from a rear end of the auxiliary equipment to the bolster profile 4 is set to be S2, and when S1 is S2 is S, a position of the auxiliary equipment is determined; when S1 is greater than S, S2 is greater than S, the front end and the rear end of the auxiliary equipment move close to the sleeper beam section 4; when S1> S and S2< S, the front end of the auxiliary equipment moves close to the sleeper beam profile 4, and the rear end moves away from the sleeper beam profile 4; when S1< S; s2> S; the front end of the auxiliary equipment moves away from the sleeper beam profile 4, and the rear end of the auxiliary equipment moves close to the sleeper beam profile 4; when S1< S, S2< S, both the front and rear ends of the auxiliary device move away from the bolster profile 4. After the distance between the auxiliary equipment and the sleeper beam profile 4 is adjusted, the lifting platform 21 is started, the heights of the mounting platform 22 and the supporting structure 3 are adjusted, the second distance measuring instrument 13 measures data, a signal is generated and transmitted to a controller of the lifting platform 21, and then the lifting platform 21 is automatically controlled to ascend or descend, so that the height of the supporting structure 3 is determined to be the height H required by work. The front end of the auxiliary equipment is a vehicle head, and the rear end of the auxiliary equipment is a vehicle tail. The tool is used for clamping the sleeper beam profile 4 and controlling the sleeper beam profile 4 to turn over and the like.
Referring to fig. 1 to 5, an embodiment of the present invention further provides a method for welding a long straight weld, where the method for welding a long straight weld includes any one of the above-mentioned auxiliary apparatuses for welding a long straight weld, and further includes installing a lower cover plate 5 on a sleeper beam profile 4, pressing the sleeper beam profile with a pressing wall, and performing tack welding; turning over the sleeper beam profile 4, welding rib plates 51 on two sides of a lower cover plate 5, and then welding reinforcing plates 52 on the lower cover plate 5, wherein the reinforcing plates 52 are positioned between the rib plates 51; turning over the sleeper beam profile 4 and driving the auxiliary equipment for welding the two long straight weld joints to move to the middle position of one side of the sleeper beam profile 4; then driving auxiliary equipment for welding the long straight weld joint to move from the middle position to two ends of the sleeper beam profile 4 and bottoming and welding the lower cover plate 5 and the sleeper beam profile 4; turning over the sleeper beam profile 4, installing an upper cover plate 6 on the sleeper beam profile 4, and pressing by using a pressing wall; driving two auxiliary devices for welding the long straight weld joints to move to the middle position of one side of the sleeper beam profile 4; then driving auxiliary equipment for welding the long straight weld joint to move from the middle position to two ends of the sleeper beam profile 4 and bottoming and welding the upper cover plate 6 and the sleeper beam profile 4; turning over the sleeper beam profile 4, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile 4; then driving auxiliary equipment for welding the long straight weld joint to move from two ends of the sleeper beam profile 4 to the middle position and performing cover surface and filling welding on the lower cover plate 5 and the sleeper beam profile 4; turning over the sleeper beam profile 4, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile 4; then, the auxiliary equipment for welding the long straight weld joint is driven to move from the two ends of the sleeper beam profile 4 to the middle position, and the upper cover plate 6 and the sleeper beam profile 4 are subjected to cover surface and filling welding.
According to the method for welding the long straight weld seam, provided by the invention, a worker is positioned on one side of the sleeper beam profile 4 by virtue of auxiliary equipment for welding the long straight weld seam, and the movement is flexible and rapid; the welding deformation of the welding reinforcing plate 52 when the lower cover plate 5 is in a free state is reduced by welding the rib plate 51 on the lower cover plate 5 in advance and then welding the reinforcing plate 52 on the lower cover plate 5; further, the welding operation of a 25V welding seam of the lower cover plate and a 14V welding seam of the upper cover plate is alternately finished by turning the sleeper beam profile 4 for multiple times, so that the welding residual stress generated in the welding process is fully released, and the welding quality of the upper cover plate 6 and the lower cover plate 5 with the sleeper beam profile 4 is improved; meanwhile, the sequence from the middle to the two ends is adopted for backing welding between the upper cover plate 6, the lower cover plate 5 and the sleeper beam profile 4, the sequence from the two ends to the middle is selected for capping and filling welding, so that the welding line is cooled relatively uniformly, the distribution state of welding residual stress is improved, and welding deformation is reduced.
Referring to fig. 1 to 5, as an embodiment of the method for welding a long straight weld according to the present invention, when backing welding is performed on a lower cover plate 5 and a bolster profile 4, two auxiliary devices for welding the long straight weld are driven to move to a middle position of one side of the bolster profile 4 and weld the lower cover plate 5 and the other side of the bolster profile 4; then drive two long straight welded seam welded auxiliary assemblies and remove the intermediate position to sleeper beam section bar 4's opposite side and weld lower apron 5 and sleeper beam section bar 4's one side, when lapping bottom welding to lower apron 5, the staff sits on bearing structure 3 and follows travelling wheel 11 and remove to sleeper beam section bar 4's one side (left side), then weld the lower apron 5 welding seam of sleeper beam section bar 4 opposite side (right side), it is comparatively convenient to operate, next staff follows travelling wheel 11 and removes to sleeper beam section bar 4's opposite side (right side), then weld the lower apron 5 welding seam of sleeper beam section bar 4 one side (left side). The mode can better avoid the obstruction of the pressure wall to the welding operation of the working personnel, and the working personnel can conveniently and rapidly carry out the welding operation.
Referring to fig. 1 to 5, as an embodiment of the method for welding a long straight weld according to the present invention, when backing welding is performed on an upper cover plate 6 and a bolster profile 4, two auxiliary devices for welding the long straight weld are driven to move to a middle position of one side of the bolster profile 4 and weld the upper cover plate 6 and the other side of the bolster profile 4; then drive two long straight welded seam welded auxiliary assemblies and remove the intermediate position to the opposite side of sleeper beam section bar 4 and weld one side of upper cover plate 6 and sleeper beam section bar 4, when backing up the welding to upper cover plate 6, the staff sits and moves to one side (left side) of sleeper beam section bar 4 along with walking wheel 11 on bearing structure 3, then weld the upper cover plate 6 welding seam of sleeper beam section bar 4 opposite side (right side), it is comparatively convenient to operate, next staff's walking wheel 11 moves to opposite side (right side) of sleeper beam section bar 4, then weld the upper cover plate 6 welding seam of sleeper beam section bar 4 one side (left side). The mode can better avoid the obstruction of the pressure wall to the welding operation of the working personnel, and the working personnel can conveniently and rapidly carry out the welding operation.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Auxiliary equipment for welding long straight weld seams, which is characterized by comprising:
the chassis is provided with a plurality of travelling wheels; the chassis is used for being placed on one side of the sleeper beam tool;
the height adjusting platform is arranged on the chassis;
the supporting structure is fixedly arranged on one side of the height adjusting table and used for supporting workers;
the first distance meter is arranged on the chassis and used for monitoring the distance between the chassis and the sleeper beam tool;
and the second distance meter is arranged on the chassis and positioned below the supporting structure and used for monitoring the height of the supporting structure.
2. The auxiliary equipment for long straight weld welding according to claim 1, characterized in that the height adjusting stage comprises:
the lifting platform is fixedly arranged on the chassis;
the mounting table is fixedly arranged on the lifting table; the supporting structure is fixedly arranged on one side of the mounting table.
3. The auxiliary equipment for welding the long straight weld joint according to claim 2, wherein two supporting rods which are arranged in parallel at intervals are arranged on the mounting table, and one ends of the two supporting rods on the same side extend out of the mounting table; the supporting structure is fixedly connected with one ends of the two supporting rods.
4. Auxiliary equipment for long straight weld welding according to claim 1, characterized in that said support structure comprises:
the back plate is fixed on one side of the height adjusting platform;
the transverse plate is fixedly arranged on one side, away from the height adjusting platform, of the back plate and used for supporting workers.
5. Auxiliary equipment for long straight weld welding according to claim 1, characterized in that the side of the chassis remote from the supporting structure is provided with a counterweight.
6. The auxiliary equipment for welding the long straight weld joint according to claim 1, wherein the first distance measuring instrument and the second distance measuring instrument are both laser distance measuring instruments, and the two first distance measuring instruments are respectively arranged at the front end and the rear end of the chassis.
7. The auxiliary equipment for welding the long straight weld seam according to claim 1, wherein the required distance from the auxiliary equipment to the sleeper beam profile is set to be S, the front end of the auxiliary equipment is set to be S1, the rear end of the auxiliary equipment is set to be S2, and when S1 is S2, the position of the auxiliary equipment is determined; when S1 is greater than S, S2 is greater than S, the front end and the rear end of the auxiliary equipment move close to the sleeper beam profile; when S1 is greater than S and S2< S, the front end of the auxiliary equipment moves close to the sleeper beam profile, and the rear end moves away from the sleeper beam profile; when S1< S; s2> S; the front end of the auxiliary equipment moves away from the sleeper beam profile, and the rear end of the auxiliary equipment moves close to the sleeper beam profile; when S1< S and S2< S, the front end and the rear end of the auxiliary equipment move away from the sleeper beam profile; and after the distance between the auxiliary equipment and the sleeper beam profile is adjusted, starting the height adjusting platform, adjusting the heights of the height adjusting platform and the supporting structure, and driving the height adjusting platform to ascend or descend by using data measured by the second distance measuring instrument so as to determine the height of the supporting structure as the height H required by work.
8. Method for long straight weld welding, comprising an auxiliary device for long straight weld welding according to any one of claims 1 to 7, characterized in that it further comprises:
installing a lower cover plate on the sleeper beam profile, pressing the sleeper beam profile by using a pressing wall, and performing point-fixing welding;
turning over the sleeper beam profile, welding rib plates on two sides of the lower cover plate, and welding reinforcing plates on the lower cover plate, wherein the reinforcing plates are positioned between the rib plates;
turning over the sleeper beam profile and driving two auxiliary devices for welding the long straight weld joints to move to the middle position of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld to move from the middle position to two ends of the sleeper beam profile and bottoming and welding the lower cover plate and the sleeper beam profile;
turning over the sleeper beam profile, mounting an upper cover plate on the sleeper beam profile, and pressing by using a pressing wall; driving two auxiliary devices for welding the long straight weld joints to move to the middle position of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld to move from the middle position to two ends of the sleeper beam profile and bottoming and welding the upper cover plate and the sleeper beam profile;
turning over the sleeper beam profile, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile; then driving the auxiliary equipment for welding the long straight weld joint to move from two ends of the sleeper beam profile to the middle position, and performing cover surface and filling welding on the lower cover plate and the sleeper beam profile;
turning over the sleeper beam profile, and driving two auxiliary devices for welding the long straight weld joints to move to two ends of one side of the sleeper beam profile; and then driving the auxiliary equipment for welding the long straight weld joint to move from two ends of the sleeper beam profile to the middle position, and performing cover surface and filling welding on the upper cover plate and the sleeper beam profile.
9. The method for welding a long straight weld according to claim 8, wherein, when backing welding the lower cover plate and the bolster profile, an auxiliary device for driving the welding of the two long straight welds moves to a middle position of one side of the bolster profile and welds the other side of the lower cover plate and the bolster profile; and then driving two auxiliary devices for welding the long straight weld to move to the middle position of the other side of the sleeper beam profile and welding the lower cover plate and one side of the sleeper beam profile.
10. The method for welding a long straight weld according to claim 8, wherein, when backing welding the upper cover plate and the bolster profile, an auxiliary device for driving the welding of the two long straight welds moves to a middle position of one side of the bolster profile and welds the other side of the upper cover plate and the bolster profile; and then driving two auxiliary devices for welding the long straight weld to move to the middle position of the other side of the sleeper beam profile and welding the upper cover plate and one side of the sleeper beam profile.
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| CN202010419774.3A CN111716027A (en) | 2020-05-18 | 2020-05-18 | Auxiliary equipment and method for long straight weld joint welding |
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| CN202010419774.3A CN111716027A (en) | 2020-05-18 | 2020-05-18 | Auxiliary equipment and method for long straight weld joint welding |
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Application publication date: 20200929 |