CN114367777A - Pressing device for welding U-shaped ribs and welding system - Google Patents
Pressing device for welding U-shaped ribs and welding system Download PDFInfo
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- CN114367777A CN114367777A CN202111528593.5A CN202111528593A CN114367777A CN 114367777 A CN114367777 A CN 114367777A CN 202111528593 A CN202111528593 A CN 202111528593A CN 114367777 A CN114367777 A CN 114367777A
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- 238000003466 welding Methods 0.000 title claims abstract description 96
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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
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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Abstract
The embodiment of the application discloses a pressing device for welding a U rib, which comprises a jig frame for bearing a bottom plate and the U rib; the transverse beam of the gantry is erected above the jig frame; and the pressing and positioning module is slidably mounted on the cross beam and is used for pressing and positioning the to-be-welded U-shaped rib on the bottom plate. Compared with the prior art, the closing device that this application provided still contains locates the last buckle of the both sides of bed-jig, locate on the stand and be located with the lower buckle of the adjacent one side of bed-jig. When the gantry clamping device works, the pressing and positioning module moves downwards to press the bottom plate and the U-shaped ribs, the gantry and the pressing and positioning module are subjected to upward reaction force, and a lower clamping plate fixed on an upright post of the gantry is tightly buckled with an upper clamping plate of the jig frame. Compared with the prior art that the upward reaction force applied to the pressing positioning mechanism and the gantry is transmitted to the walking track, the track deformation can be avoided, and therefore the quality of welding seams is improved.
Description
Technical Field
The application relates to the technical field of internal welding, in particular to a pressing device and a welding system for welding a U rib.
Background
The steel box girder is an important component in a bridge bearing structure, is generally an orthotropic steel bridge deck and is mainly used for providing support and avoiding bridge deformation. The steel box girder generally comprises a top plate, a bottom plate and the like, wherein the top plate and the bottom plate are generally formed by welding a U rib and the bottom plate.
Patent document CN108436239A discloses a U-rib pressing and positioning device, which includes a pressing and positioning mechanism capable of freely lifting and lowering, and a pressing module for pressing and positioning the U-rib to be welded during formal welding construction; the pressing and positioning mechanism further comprises a walking module and a rack, the walking module is arranged at the bottom of the rack, the walking module can walk along the first walking track, the pressing and positioning mechanism is driven by the walking module to move along the length direction of the U rib to be welded and always keeps pressing and positioning the U rib, so that assembly and welding are realized, and high assembly and welding accuracy of the U rib are guaranteed to move along the length direction of the U rib to be welded.
However, in the welding process, the problems that the operation of a positioning mechanism is not stable, the positioning is not accurate, and the quality of a welding seam cannot meet the requirement are caused.
Disclosure of Invention
For solving one of the above-mentioned problem, this application provides a closing device for U rib welded, can solve among the prior art welding process positioning mechanism and operate unstably, fix a position not accurate, lead to the unsatisfactory problem of requirement of welding seam quality, closing device includes:
the jig frame is used for bearing the bottom plate and the U ribs;
the gantry comprises a cross beam and a stand column, and the cross beam is erected above the jig frame;
the pressing and positioning module is slidably mounted on the cross beam and used for pressing and positioning the to-be-welded U-shaped rib on the bottom plate;
further comprising:
the upper pinch plates are arranged on two sides of the jig frame;
the lower buckle plate is arranged on the upright post and positioned on one side adjacent to the jig frame;
when the pressing and positioning module works, the lower pinch plate presses the upper pinch plate upwards.
Preferably, the upper buckle plate extends continuously along the length direction of the jig frame.
Preferably, the lower buckle is fixed on the sliding block, a sliding rail matched with the sliding block is arranged on the upright post, and the extending direction of the sliding rail is vertical.
Preferably, the pressing device further comprises:
and the locking component is used for fixing the position of the sliding block on the sliding rail.
Preferably, the locking member comprises:
the stop block is arranged on the slide rail;
the bolt is in threaded connection with the stop block, the axial direction of the threaded connection is vertical, and the bolt upwards props against the sliding block.
Preferably, the pressing device further comprises:
the horizontal rails are laid on two sides of the jig frame;
the walking structure is connected to the lower end of the upright post, and the walking structure and the rail directly form a sliding pair.
Preferably, the pressing positioning module comprises a transverse positioning sub-module and a pressing sub-module:
the transverse positioning sub-modules and the pressing sub-modules are multiple and are sequentially and alternately arranged in the walking direction perpendicular to the gantry;
one end of each of the transverse positioning sub-module and the pressing sub-module is movably connected with the gantry, and the other end of each of the transverse positioning sub-module and the pressing sub-module is abutted to the U-shaped rib to be welded during working.
Preferably, the transverse positioning sub-module comprises a first fixed part, a first movable part, a first pressing oil cylinder and a positioning roller;
the first fixing part is movably connected with the gantry;
the fixed end of the first pressing oil cylinder is hinged with the first fixed part, the movable end of the first pressing oil cylinder is connected with the first movable part, and a plurality of positioning rollers are respectively arranged on two sides of the first movable part;
the positioning roller is abutted against and rolls along the side wall of the U rib to be welded during operation.
Preferably, the distance between the positioning rollers arranged on the two sides of the first movable part is adjustable.
Preferably, the pressing sub-module comprises a second fixed part, a second movable part, a second pressing oil cylinder and a pressing roller;
the second fixing part is movably connected with the movable portal frame;
the fixed end of the second pressing oil cylinder is hinged with the second fixed part, the movable end of the second pressing oil cylinder is connected with the second movable part, and the pressing roller is installed on the second movable part;
when the device works, the pressing roller rolls along the top wall of the U rib to be welded.
The application also provides a welding system, which comprises the pressing device for welding the U rib.
Preferably, the welding system further comprises:
the internal welding machine can extend into the U rib to be welded for welding operation;
the inner welding machine main machine is connected with the inner welding machine through a connecting rod and supplies power and/or gas and/or wires to the inner welding machine;
the inner welding machine moving platform is used for moving the inner welding machine; the inner welding machine moving platform is connected with the jig frame.
Preferably, the welding system further comprises an outer welding device for welding an outer corner seam between the U-rib and the base plate.
The application provides a hold-down device for welding U ribs, which comprises a jig frame for bearing a bottom plate and the U ribs; the transverse beam of the gantry is erected above the jig frame; and the pressing and positioning module is slidably mounted on the cross beam and is used for pressing and positioning the to-be-welded U-shaped rib on the bottom plate. Compared with the prior art, the closing device that this application provided still contains locates the last buckle of the both sides of bed-jig, locate on the stand and be located with the lower buckle of the adjacent one side of bed-jig.
When the gantry clamping device works, the pressing and positioning module moves downwards to press the bottom plate and the U-shaped ribs, the gantry and the pressing and positioning module are subjected to upward reaction force, and a lower clamping plate fixed on an upright post of the gantry is tightly buckled with an upper clamping plate of the jig frame. Compared with the prior art that the upward reaction force that receives with compressing tightly positioning mechanism and longmen conducts to the walking track, this application has changed the stress position of balanced ascending reaction force, becomes the bed-jig atress by original walking track atress, avoids the track to warp to guarantee to compress tightly positioning module steady operation on the longmen that moves on the track and be connected with the longmen. Consequently, the closing device location that this application provided is accurate, and the U rib of the closing device location that provides through this application obtains promoting at welding back welding seam quality.
For further clarity, aspects and advantages of the embodiments disclosed herein will become apparent from the following description, or may be learned by practice of the embodiments disclosed herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of a pressing device for U-rib welding according to a first embodiment of the present disclosure;
FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic structural diagram of a portion of a pressing and positioning module for U-rib welding according to a second embodiment of the disclosure;
fig. 4 is a schematic structural diagram of a partial front view of a pressing and positioning module for U-rib welding according to a second embodiment of the present disclosure;
fig. 5 is a partial left-view structural schematic diagram of a pressing and positioning module for U-rib welding according to a second embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a part of an oblique upward view of a pressing and positioning module for U-rib welding according to a second embodiment of the present disclosure;
fig. 7 is a schematic cross-sectional view of a portion of a structure in an embodiment disclosed herein.
Wherein, the part numbers in the figures are expressed as:
1-a jig frame, 2-a cross beam, 3-a vertical column, 4-a traveling mechanism, 5-a horizontal track, 601-an upper buckle, 602-a lower buckle, 701-a sliding block, 702-a first sliding rail, 801-a bolt, 802-a stop block and 9-a compression positioning module;
901-transverse positioning submodule, 902-downward pressing submodule, 904-to-be-welded U rib, 905-limiting block, 906-second sliding rail, 907-first driving motor, 908-gear rack mechanism, 909-first fixed part, 910-first downward pressing oil cylinder, 911-first movable part, 912-positioning roller, 913-second driving motor, 914-second fixed part, 915-second movable part, 916-second downward pressing oil cylinder and 917-downward pressing roller.
Detailed Description
The principles and features of the present invention will be described with reference to the drawings, which are provided by way of example only for the purpose of illustrating the invention and not for the purpose of limiting the scope of the invention.
Example 1
The embodiment provides a pressing device for welding U ribs, wherein before welding of external or internal welding of the U ribs, the U ribs to be welded are fixed on a bottom plate at a certain interval through the pressing device, and then welding operation of internal or external corner joints is performed.
Referring to fig. 1 and 2, the pressing device includes:
the jig frame 1 is used for bearing a bottom plate and a U rib to be welded;
the gantry comprises a beam 2 and a column 3, wherein the beam 2 is erected above the jig frame 1;
the pressing and positioning module 9 is slidably mounted on the cross beam 2, can move in the extending direction of the cross beam 2, and can be locked on the cross beam 2 through a mechanism, and the pressing and positioning module 9 is used for pressing and positioning the to-be-welded U rib on the bottom plate.
The pressing device further comprises:
the upper pinch plate 601 is arranged on two sides of the jig frame 1;
the lower buckle plate 602 is arranged on the upright post 3 and positioned at one side adjacent to the jig frame 1;
when the pressing and positioning module 9 works, the pressing and positioning module 9 applies force downwards to the U-shaped rib to be welded and the bottom plate which are positioned on the jig frame 1, the U-shaped rib to be welded and the bottom plate feed back upward reaction force to the pressing and positioning module 9, the reaction force received by the pressing and positioning module 9 is transmitted to the upright post 3 through the cross beam, the upright post 3 transmits the received upward reaction force to the lower buckle plate 602, the lower buckle plate 602 upwards presses the upper buckle plate 601, and the upper buckle plate 601 is connected with the jig frame 1.
Due to the fact that the positions of the U ribs to be welded are different, the gantry is designed to be movable along the extending direction of the jig frame 1, the walking structure 4 is arranged below the stand column 3, and the horizontal rails 5 which form a moving pair with the walking structure 4 are laid on the two sides of the jig frame 1. The pressing device moves along the horizontal rail 4 in this embodiment, and the pressing device may move along with the welding device during the course of the welding process, or may move to a next position at a certain distance at intervals.
The existing structure form that the horizontal rail 5 is embedded in the necking groove with the downward opening of the walking structure 4 is often adopted between the walking structure 4 and the horizontal rail 5, so that the upward reaction force received by the gantry can be transmitted to the horizontal rail 5 connected with the walking structure 4, upward pulling force can be applied to the horizontal rail 5, and the upward pulling force enables the horizontal rail 5 to deform.
Compared with the prior art that the upward reaction force received by the pressing positioning mechanism and the gantry is transmitted to the horizontal rail connected with the stand column, the stress position of the upward reaction force received by the pressing device is changed by arranging the upper buckle plate 601 and the lower buckle plate 602 when the U rib is pressed down, the stress of the original horizontal rail 5 is changed into the stress of the jig frame 1, the deformation of the rail is effectively prevented, and therefore the gantry moving on the moving rail and the pressing positioning module connected with the gantry are ensured to run stably.
Aiming at the structural form that the horizontal rail 5 is often embedded in a necking groove with a downward opening of the walking structure 4 between the existing walking structure 4 and the horizontal rail 5, in order to further ensure that the upright post of the gantry does not apply upward tension to the horizontal rail or applies upward tension to the horizontal rail as little as possible, referring to fig. 7, when the walking structure 4 walks on the horizontal rail 5 in the embodiment, the first end surface 401 of the walking structure 4 slides or rolls on the surface of the first end surface 501 of the horizontal rail 5; the second end face 402 of the running structure 4 is provided with a gap B between the second end faces 502 of the horizontal rails 5. When the pressing device works, the walking structure 4 stops on the horizontal rail 5, and when the walking structure 4 moves upwards due to the reaction force, the walking structure 4 cannot apply upward pulling force to the horizontal rail 5 due to the existence of the gap B.
In this embodiment, the upper buckle 601 extends continuously along the length direction of the jig frame 1, so as to ensure that the gantry is at any position, and the deformation of the horizontal rail is avoided by the technical solution provided by this embodiment.
The embodiment further includes a preferred embodiment, the lower buckle 602 is fixed on the slider 701, the slide rail 702 matched with the slider 701 is installed on the upright 3, and the extending direction of the slide rail 702 is the vertical direction. The position of the lower pinch plate can be changed by arranging the lower pinch plate 602 on the slide rail 702, so that the purpose of adapting to the moulding bed 1 with different heights is achieved.
To achieve the stabilization of the lower pinch plate 602, a locking member is provided in this preferred embodiment to fix the position of the slider on the slide rail. Specifically, the locking member includes:
the stop block 802 is fixedly arranged at the lower end of the slide rail 702;
and the bolt 801 is in threaded connection with the stop block 802, the axial direction of the threaded connection is vertical, the bolt upwards supports against the sliding block 802, and the position of the sliding block 701 is locked through threads.
Example 2
This embodiment further provides a specific implementation of the pressing and positioning module 9 with respect to embodiment 1.
Referring to fig. 3 to 6, the compacting positioning module 9 includes a plurality of transverse positioning sub-modules 901 and a plurality of pressing sub-modules 902, and the transverse positioning sub-modules 901 and the pressing sub-modules 902 are sequentially and alternately arranged in a direction perpendicular to the traveling direction of the gantry; the upper ends of the transverse positioning sub-module 901 and the pressing sub-module 902 form a moving pair in the horizontal direction with the cross beam 2, and the other ends of the transverse positioning sub-module and the pressing sub-module abut against the to-be-welded U rib 904 during operation.
One of the embodiments of the horizontal sliding pair is as follows: the upper end of each transverse positioning submodule 901 is movably connected with the cross beam 2 through a linear slide rail 906, and each transverse positioning submodule 901 is in transmission connection with the cross beam 2 through a gear and rack mechanism 908 and is driven by a first driving motor 907 arranged on the transverse positioning submodule 901. Similarly, the upper end of each of the push-down submodules 902 is movably connected to the cross beam 2 through a linear slide rail 906, and each of the push-down submodules 902 is drivingly connected to the cross beam 2 through a rack-and-pinion mechanism 908 and is driven by a second driving motor 913 mounted on the push-down submodule 902. Preferably, the lateral positioning sub-module 901 and the push-down sub-module 902 share a set of linear slide 906 and a rack-and-pinion mechanism 908 to save space and equipment cost. In this embodiment, the rail of the linear sliding rail 906 may be fixed to the cross beam 2, and the slider of the linear sliding rail 906 is fixed to the transverse positioning sub-module 901 and the pressing sub-module 902. The rack and pinion mechanism 908 includes a rack mounted on the beam 2 and a gear mounted on the first driving motor 907 and the second driving motor 913.
One specific embodiment of the lateral positioning sub-module 901 is: comprises a first fixed part 909, a first movable part 911, a first pressing oil cylinder 910 and a positioning roller 912; the first fixed part 909 is connected to the beam 2 via the horizontal sliding pair; the fixed end of the first pressing cylinder 910 is hinged with a first fixed part 909, the movable end of the first pressing cylinder 910 is connected with a first movable part 911, and a plurality of positioning rollers 912 are respectively mounted on two sides of the first movable part 911; the positioning roller 912 is abutted against the side wall of the U-shaped rib 4 to be welded and rolls along the side wall when working, the rotating axis of the positioning roller 912 is perpendicular to the plane of the side wall of the U-shaped rib 4 to be welded, the roller surface of the positioning roller 912 is guaranteed to be in contact with the cooked side wall as much as possible, and the positioning pressure is guaranteed.
The up-down height of the positioning roller 912 can be adjusted through the first pressing oil cylinder 910, and the distance between the transverse positioning sub-modules 901 can be adjusted through the first driving motor 907 to adapt to U ribs with different sizes, so that each U rib 904 to be welded is accurately positioned in the horizontal direction. The first pressing oil cylinder 910 is used for compressing and limiting the to-be-welded U rib 904 in the vertical direction, and ensures the stability of the to-be-welded U rib 904 together with the positioning roller 912.
In order to detect the up-and-down movement distance of the transverse positioning sub-module 901 in real time, a laser range finder for downward detection is provided in the first movable portion 911.
One embodiment of the push-down module 902 is: comprises a second fixed part 914, a second movable part 915, a second pressing cylinder 916 and a pressing roller 917; the second fixing portion 914 is connected to the cross beam 2 via the horizontal sliding pair; the fixed end of the second pressing cylinder 916 is hinged to the second fixed portion 914, the movable end of the second pressing cylinder 916 is connected to the second movable portion 915, and the pressing roller 917 is mounted on the second movable portion 915. The axis of the pressing roller 917 is in the horizontal direction, and the pressing roller 917 rolls along the top wall of the to-be-welded U rib 904 in operation.
In a preferred embodiment of the pressing sub-module 902, in order to accommodate different U-rib width dimensions, the spacing between the positioning rollers 912 disposed on both sides of the first movable portion 911 is adjustable. Specifically, the positioning rollers 912 on two sides are mounted on the roller seat, the roller seat is bolted to the first movable portion 911 in the form of a waist-shaped hole, and the limiting block 905 is arranged between the roller seats on two sides, because the frequency to be adjusted is not high, and the side wall of the U rib 904 to be welded is also of an inclined structure, the distance between the rollers on two sides can be manually adjusted. The "both sides" herein refer to both sides in the direction perpendicular to the moving direction of the cross member 2.
The closing device that this embodiment provided compresses tightly the location to the U rib: arranging the to-be-welded U rib 904 on the bottom plate, starting a first driving motor 907 as required to enable the transverse positioning sub-module 901 to be arranged on two sides of the to-be-welded U rib 904, starting a first pressing oil cylinder 910, driving a positioning roller 912 to move downwards until the two sides of the to-be-welded U rib 904 are positioned and fixed, then or simultaneously starting a second driving motor 913 to adjust the transverse position, enabling a pressing roller 917 to be arranged above the to-be-welded U rib 904, starting a second pressing oil cylinder 916, and driving a pressing roller 917 to move downwards until the pressing roller 917 abuts against and presses the top of the to-be-welded U rib 904. At this point, the positioning work is completed.
During welding, the gantry can be welded while moving, so that the current welding part is always positioned and pressed, the welding quality is ensured, and the welding quality reduction caused by welding deformation is avoided.
Especially for the application scenario that the gantry moves while welding, the upper pinch plate 601 and the lower pinch plate 602 are arranged to change the stress of the original horizontal rail 5 into the stress of the jig frame 1, so that the deformation of the rail is effectively prevented, the gantry moving on the moving rail and the compression positioning module connected with the gantry are ensured to run stably, and the welding quality is ensured.
Example 3
The present embodiment provides a welding system including the pressing device for U-rib welding described in embodiments 1 and 2. The welding system has been described above with respect to various advantageous technical effects including the pressing device, and thus, the description thereof is omitted.
In an embodiment of a welding system for internal welding, the welding system further comprises:
the internal welding machine can extend into the U rib to be welded for welding operation;
the inner welding machine main machine is connected with the inner welding machine through a connecting rod and supplies power and/or gas and/or wires to the inner welding machine;
the inner welding machine moving platform is used for moving the inner welding machine; the inner welding machine moving platform is connected with the jig frame.
In one embodiment of the welding system for exterior welding, the welding system further comprises an exterior welding device for welding an exterior corner seam between the U-rib and the base plate.
The inner welding machine main machine and the outer welding equipment also comprise a walking mechanism which walks along the extending direction of the jig frame.
The welding system for welding the U ribs, which is provided by the embodiment, can be suitable for welding a single U rib and can also be suitable for simultaneously welding a plurality of U ribs, and can realize that the U rib inner welding machine is adopted while assembling, and the U rib and the bottom plate are welded into a whole from the inside of the U rib, so that the higher assembling precision of the U rib is ensured, the work of positioning welding in the U rib assembling is eliminated, and the problem of welding quality caused by the positioning welding is further eliminated. The production efficiency is improved, the working procedures are reduced, and the manufacturing cost of the U rib plate unit is reduced.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present technical solution and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present technical solution.
In this disclosure, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present technical solution can be understood by those of ordinary skill in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present technology. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (13)
1. A closing device for U rib welding, its characterized in that includes:
the jig frame is used for bearing the bottom plate and the U ribs;
the gantry comprises a cross beam and a stand column, and the cross beam is erected above the jig frame;
the pressing and positioning module is slidably mounted on the cross beam and used for pressing and positioning the to-be-welded U-shaped rib on the bottom plate;
further comprising:
the upper pinch plates are arranged on two sides of the jig frame;
the lower buckle plate is arranged on the upright post and positioned on one side adjacent to the jig frame;
when the pressing and positioning module works, the lower pinch plate presses the upper pinch plate upwards.
2. The hold-down device of claim 1, wherein the upper gusset extends continuously along a length of the jig frame.
3. The pressing device as claimed in claim 1, wherein the lower buckle is fixed on a sliding block, a sliding rail matched with the sliding block is mounted on the upright post, and the extending direction of the sliding rail is vertical.
4. The compression device of claim 3, further comprising:
and the locking component is used for fixing the position of the sliding block on the sliding rail.
5. The compression device of claim 4, wherein the locking member comprises:
the stop block is arranged on the slide rail;
the bolt is in threaded connection with the stop block, the axial direction of the threaded connection is vertical, and the bolt upwards props against the sliding block.
6. The compacting apparatus of any of claims 1-5, further comprising:
the horizontal rails are laid on two sides of the jig frame;
the walking structure is connected to the lower end of the upright post, and the walking structure and the rail directly form a sliding pair.
7. The compression device of claim 6, wherein the compression positioning module comprises a lateral positioning sub-module and a hold-down sub-module:
the transverse positioning sub-modules and the pressing sub-modules are multiple and are sequentially and alternately arranged in the walking direction perpendicular to the gantry;
one end of each of the transverse positioning sub-module and the pressing sub-module is movably connected with the gantry, and the other end of each of the transverse positioning sub-module and the pressing sub-module is abutted to the U-shaped rib to be welded during working.
8. The pressing device as claimed in claim 7, wherein the transverse positioning sub-module comprises a first fixed part, a first movable part, a first pressing cylinder and a positioning roller;
the first fixing part is movably connected with the gantry;
the fixed end of the first pressing oil cylinder is hinged with the first fixed part, the movable end of the first pressing oil cylinder is connected with the first movable part, and a plurality of positioning rollers are respectively arranged on two sides of the first movable part;
the positioning roller is abutted against and rolls along the side wall of the U rib to be welded during operation.
9. The compression device as claimed in claim 8, wherein the spacing between the positioning rollers provided on both sides of the first movable portion is adjustable.
10. The compression device of claim 7, wherein the push-down sub-module comprises a second fixed portion, a second movable portion, a second push-down cylinder, and a push-down roller;
the second fixing part is movably connected with the movable portal frame;
the fixed end of the second pressing oil cylinder is hinged with the second fixed part, the movable end of the second pressing oil cylinder is connected with the second movable part, and the pressing roller is installed on the second movable part;
when the device works, the pressing roller rolls along the top wall of the U rib to be welded.
11. Welding system, characterized in that it comprises a pressing device for U-rib welding according to any of claims 1-10.
12. The welding system of claim 11, further comprising:
the internal welding machine can extend into the U rib to be welded for welding operation;
the inner welding machine main machine is connected with the inner welding machine through a connecting rod and supplies power and/or gas and/or wires to the inner welding machine;
the inner welding machine moving platform is used for moving the inner welding machine; the inner welding machine moving platform is connected with the jig frame.
13. The welding system of claim 11, further comprising an external welding device for welding an external corner seam between the U-rib and the base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528593.5A CN114367777B (en) | 2021-12-14 | 2021-12-14 | Pressing device for U-rib welding and welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111528593.5A CN114367777B (en) | 2021-12-14 | 2021-12-14 | Pressing device for U-rib welding and welding system |
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| CN114367777A true CN114367777A (en) | 2022-04-19 |
| CN114367777B CN114367777B (en) | 2024-02-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810263A (en) * | 2023-07-19 | 2023-09-29 | 安徽省交通建设股份有限公司 | Positioning and fixing device for welding and processing U-shaped ribs of steel box girder |
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| JPH11200397A (en) * | 1998-01-10 | 1999-07-27 | Komatsu Ltd | Manufacture of box-shaped structure for construction-equipment working machine |
| KR20160001558U (en) * | 2014-11-04 | 2016-05-12 | 대우조선해양 주식회사 | Fixture for preventing distortion of welding object |
| CN207548003U (en) * | 2017-11-17 | 2018-06-29 | 中铁十一局集团汉江重工有限公司 | A kind of assembled moulding bed of U ribs assembling |
| CN108436239A (en) * | 2018-05-22 | 2018-08-24 | 武汉锂鑫自动化科技有限公司 | A kind of pressing positioner and welding system of U ribs |
| CN209021475U (en) * | 2018-10-19 | 2019-06-25 | 江苏京沪重工有限公司 | A kind of bridge U-rib welding anti-distortion device |
| CN211840773U (en) * | 2020-04-03 | 2020-11-03 | 九冶建设有限公司 | Anti-deformation jig frame with radian adjusting function |
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2021
- 2021-12-14 CN CN202111528593.5A patent/CN114367777B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11200397A (en) * | 1998-01-10 | 1999-07-27 | Komatsu Ltd | Manufacture of box-shaped structure for construction-equipment working machine |
| KR20160001558U (en) * | 2014-11-04 | 2016-05-12 | 대우조선해양 주식회사 | Fixture for preventing distortion of welding object |
| CN207548003U (en) * | 2017-11-17 | 2018-06-29 | 中铁十一局集团汉江重工有限公司 | A kind of assembled moulding bed of U ribs assembling |
| CN108436239A (en) * | 2018-05-22 | 2018-08-24 | 武汉锂鑫自动化科技有限公司 | A kind of pressing positioner and welding system of U ribs |
| CN209021475U (en) * | 2018-10-19 | 2019-06-25 | 江苏京沪重工有限公司 | A kind of bridge U-rib welding anti-distortion device |
| CN211840773U (en) * | 2020-04-03 | 2020-11-03 | 九冶建设有限公司 | Anti-deformation jig frame with radian adjusting function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116810263A (en) * | 2023-07-19 | 2023-09-29 | 安徽省交通建设股份有限公司 | Positioning and fixing device for welding and processing U-shaped ribs of steel box girder |
| CN116810263B (en) * | 2023-07-19 | 2024-03-01 | 安徽省交通建设股份有限公司 | Positioning and fixing device for welding and processing U-shaped ribs of steel box girder |
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| CN114367777B (en) | 2024-02-02 |
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