CN109366028B - Automatic welding device for box-shaped beam and using method - Google Patents
Automatic welding device for box-shaped beam and using method Download PDFInfo
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- CN109366028B CN109366028B CN201811449246.1A CN201811449246A CN109366028B CN 109366028 B CN109366028 B CN 109366028B CN 201811449246 A CN201811449246 A CN 201811449246A CN 109366028 B CN109366028 B CN 109366028B
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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
- B23K31/02—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 soldering or welding
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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
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Abstract
The invention belongs to the field of welding, and particularly relates to an automatic welding device for a box beam and a using method of the automatic welding device. The device comprises a box beam fixing unit and a welding unit, wherein the box beam fixing unit is used for fixing the box beam; the box-type beam fixing unit comprises a base, a fixed clamping block arranged on one side of the base, a movable clamping block arranged on the other end of the bottom plate and an auxiliary sliding frame arranged in the box-type beam; the welding unit comprises a welding wire gun supporting arm, a welding wire gun arranged on the welding wire gun supporting arm and a supporting block used for supporting the welding wire gun supporting arm; one end of the welding wire gun supporting arm is provided with a matching hole which is jointed with the auxiliary sliding frame, and the auxiliary sliding frame can realize dynamic adjustment of the box-shaped beam support in the welding process. The automatic welding device is simple in structure, easy to adjust, and convenient for automatic welding of box beams of various sizes, and reduces the labor intensity of box beam welding personnel.
Description
Technical Field
The invention belongs to the field of welding, and particularly relates to an automatic welding device for a box beam and a using method of the automatic welding device.
Background
Welding is a manufacturing technique that is adapted to the needs of industrial development, developed on the basis of modern industry, and directly serves the mechanical manufacturing industry. Large structural members in many installations are almost all welded structures. With the progress of science and technology, the production scale is gradually enlarged, and the welded structural part is developed towards the large-scale and ultra-large-scale aspects, so that various welding machines with higher quality, better performance and more complete functions are required to be provided for welding production.
The cross-sectional shape of a box beam is the same as the cross-sectional shape of a common box, and generally comprises a cover plate, a web plate, a bottom plate and a partition plate. There are many apparatuses on the market for box beams, but the automation degree thereof is low due to the structure thereof, and thus it is required to develop an automated welding machine for welding box beams. Because the box girder comprises a plurality of boards, consequently, need fix, support to these a plurality of boards before the welding to better welding work carries out. In the prior art, a fixing mechanism is arranged outside a cover plate or inside a box-shaped beam, but the fixing mechanism cannot be adjusted after being fixed, that is, if the fixing mechanism is deformed or damaged due to some external force, the fixing and supporting functions cannot be achieved, and the fixing mechanism in the prior art cannot achieve the purpose of dynamic adjustment during welding; in addition, because the fixing mechanism in the prior art is arranged between the two plates, when the plates are welded, the welding between the plates of the fixing mechanism part can be omitted, the welding quality is seriously influenced, and the welding quality can also be influenced by performing repair welding after the fixing mechanism is removed. Meanwhile, the mounting and dismounting of the box-type beam fixing device in the prior art are troublesome, and the automation degree is low.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an automatic welding device for a box beam and a using method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic welding device for a box beam is characterized by comprising a welding unit and a box beam fixing unit for fixing the box beam;
the box-shaped beam fixing unit comprises a base, a fixed clamping block arranged on one side of the base, a movable clamping block arranged on the other end of the base and an auxiliary sliding frame arranged in the box-shaped beam; the movable clamping block is connected with a piston rod of the air cylinder; the box beam comprises a cover plate, a web plate, a bottom plate and a partition plate;
the welding unit comprises a welding wire gun supporting arm and a welding wire gun arranged on the welding wire gun supporting arm, the welding wire gun is arranged on the welding wire gun supporting arm through a welding wire gun bracket, and the welding wire gun bracket can rotate around the welding wire gun supporting arm in the axial direction of the welding wire gun supporting arm and a supporting block used for supporting the welding wire gun supporting arm; the welding wire gun support arm is provided with a welding wire gun end part, a joint hole capable of being in butt joint fit with the auxiliary sliding frame is arranged at the welding wire gun support arm end part, and a slide way is arranged at the position where the side end surface of the welding wire gun support arm is in contact with the support block; the supporting shoe on be provided with the slide rail that the slide matches, the supporting shoe setting on the stand, and can follow the stand reciprocate, welding wire gun brace can the horizontal slip along the supporting shoe, the slip direction of welding wire gun brace is parallel with the axis direction of box roof beam, the stand is located one side of box roof beam.
Preferably, the engaging hole is a hexagonal motor hole, and the driving motor is provided in the welding wire gun supporting arm, and the hexagonal motor hole is formed at an output shaft end of the driving motor.
Preferably, the auxiliary sliding frame comprises a rotating shaft, three connecting rods, a supporting plate, a screw sleeve and rollers, wherein the rotating shaft comprises a screw rod shaft and a hexagonal shaft, the hexagonal shaft can be matched with and extend into a hexagonal motor hole, the number of the screw sleeves is three, two convex shoulders are arranged at the middle position of the screw rod shaft, the middle screw sleeve is located between the two convex shoulders, the convex shoulders are used for limiting the sliding position of the screw sleeve on the screw rod shaft, screw rod threads are uniformly arranged on the screw rod shaft, the screw sleeve is sleeved on the screw rod threads, four connecting rods are respectively and uniformly arranged in the circumferential direction of each screw sleeve, one end of each connecting rod is respectively hinged to the screw sleeve, the other end of each connecting rod is hinged to the supporting plate, and the supporting plate is respectively.
Preferably, the auxiliary sliding frame further comprises a hexagonal wrench matched with the hexagonal shaft for adjusting the distance between the supporting plates, when the size of the auxiliary sliding frame needs to be adjusted, the hexagonal wrench is inserted into the hexagonal shaft, the hexagonal wrench is rotated to drive the screw rod shaft to rotate, the screw sleeve is driven to slide on the screw rod shaft, and finally the connecting rod is driven to rotate, so that the distance between the supporting plates is adjusted.
Preferably, a locking mechanism matched and locked with the hexagonal shaft is arranged on the hexagonal wrench, the locking mechanism is locked after the hexagonal wrench is inserted into the hexagonal shaft, and the locking mechanism is unlocked after the hexagonal wrench is dismounted.
Preferably, when the welding, supplementary balladeur train and welding unit cooperation, when welding box girder inside, the hexagonal shaft inserts in the hexagonal motor hole, is provided with locking mechanism in the hexagonal motor hole for the hexagonal shaft inserts the back, locks the hexagonal shaft, thereby makes welding wire gun arm brace can drive supplementary balladeur train and slide in box girder, by welding wire gun arm brace provide supplementary balladeur train gliding power.
Preferably, in the welding process, if the box-shaped beam cover plate is found to be deviated, the driving motor rotates, so that the hexagonal motor hole is driven to rotate, the size of the auxiliary sliding frame is adjusted, and dynamic support adjustment in the welding process is realized.
Preferably, the welding wire gun is adjustable in length.
The invention also comprises a method for welding the box beam by using the automatic welding device for the box beam, which comprises the following steps:
1): pulling the movable clamping block open by using an air cylinder, vertically placing a web plate along the fixed clamping block, and placing a bottom plate along the base;
2): placing an auxiliary sliding frame on the bottom plate, placing a cover plate on the auxiliary sliding frame, and rotating the hexagonal shaft by using a hexagonal wrench so as to adjust the placing height of the cover plate, and stopping rotating the hexagonal wrench after the placing height is adjusted to be flush with the top of the web plate;
3): a partition plate is vertically placed along the movable clamping block, and the air cylinder pushes the movable clamping block to move so that the partition plate, the cover plate and the bottom plate are in initial contact;
4): checking whether the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, if not, rotating a hexagonal wrench for adjustment, after the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, continuously controlling the air cylinder to push the movable clamping block to move, enabling the four plates to be tightly attached to form an unwelded box-shaped beam structure, and dismounting the hexagonal wrench;
5): moving the supporting block on the upright downwards, adjusting a welding wire gun supporting arm to slide on the supporting block, and finally adjusting the position of a welding wire gun bracket to enable the welding wire gun to be positioned at one end of the box beam far away from the upright, and enabling a welding wire in the welding wire gun to be aligned to positions to be welded between the cover plate and the web plate and between the cover plate and the partition plate;
6): starting the welding wire gun to start welding, simultaneously controlling the welding wire gun supporting arm 2 to slide on the supporting block at a constant speed, and still enabling the welding wire gun supporting arm to slide for a certain distance after the welding is finished so as to prevent the welding wire gun from touching the cover plate when the supporting block descends, and at the moment, completing the welding of the cover plate and the web plate and the welding of the cover plate and the outer part of the partition plate;
7): continuing to move the support block on the stand downwards until a hexagonal motor hole in the welding wire gun support arm is flush with a hexagonal shaft of an auxiliary sliding frame in the box-shaped beam, rotating the welding wire gun support frame to adjust the direction of the welding wire gun so as to align welding points, driving the welding wire gun support arm to slide on the support block so as to enable the welding wire gun support arm to extend into the box-shaped beam, clamping the hexagonal shaft into the hexagonal motor hole, locking the shaft by a locking mechanism in the hexagonal motor hole, and stopping driving the welding wire gun support arm to slide;
8): continuously fine-adjusting the position of the welding wire gun bracket to enable the welding wire of the welding wire gun to be aligned to the contact positions between the cover plate and the web plate and between the cover plate and the partition plate, simultaneously driving the welding wire gun supporting arm to slide to enable the welding wire gun to be positioned at one end, close to the stand column, of the box-shaped beam, starting the welding wire gun to start welding, driving the welding wire gun supporting arm to slide along the box-shaped beam at a constant speed, and after the welding is finished, still enabling the welding wire gun supporting arm to slide for a certain distance to avoid that the welding wire gun touches the box-shaped beam when the welding wire gun bracket rotates, and at the moment, completing the welding of;
9): rotating a welding wire gun bracket to enable a welding wire in a welding wire gun to be aligned to the contact positions between the bottom plate and the web plate and between the bottom plate and the partition plate, starting the welding wire gun, driving a welding wire gun supporting arm to slide towards the upright post at a constant speed along the axis of the box beam, and still enabling the welding wire gun supporting arm to slide for a certain distance after welding is finished so as to avoid the welding wire gun from touching the cover plate when the supporting block rises, and at the moment, welding the bottom plate and the web plate as well as the bottom plate and the partition plate is finished;
10): unlocking a locking mechanism in the hexagonal motor hole, driving a welding wire gun supporting arm to slide, so that the hexagonal shaft is separated from the hexagonal motor hole, and then moving a supporting block on the upright column upwards so that the supporting block is positioned at the welding height in the step 5);
11): the movable clamping block is opened by the driving of the cylinder, and the movable clamping block is continuously clamped after the box-shaped beam is turned over for 180 degrees;
12): and adjusting the position of the welding wire gun, aligning the welding wire in the welding wire gun to the contact positions between the bottom plate and the web plate and between the bottom plate and the partition plate, starting the welding wire gun, driving the welding wire gun supporting arm to slide at a constant speed along the direction away from the stand column, and after the welding is finished, upwards moving the supporting block on the stand column to the initial position height position of the supporting block, so that the welding of the box beam is finished.
Preferably, step 8) further comprises: if the position among the cover plate, the web plate and the partition plate is found to be changed in the welding process, the hexagonal motor hole can be driven to rotate so as to adjust the size of the auxiliary sliding frame, adjust the position of the cover plate and achieve the purpose of real-time adjustment in the welding process.
Movable clamping block of movable clamping block
Preferably, prior to step 9), the locking mechanism is unlocked and the wire gun arm is driven to slide so that the hex shaft disengages the hex motor hole.
Preferably, the length of the welding wire gun 3 can be adjusted in the step 5), so that the welding wire in the welding wire gun is aligned with the contact positions to be welded between the cover plate and the web and between the cover plate and the partition wall.
Preferably, step 6) further comprises: if the position among the cover plate, the web plate and the partition plate is found to be changed in the welding process, a hexagonal wrench can be used to adjust the size of the auxiliary sliding frame 17, so that the position of the cover plate is adjusted, and the purpose of real-time adjustment in the welding process is achieved.
Preferably, the length of the welding wire gun 3 can be adjusted in the step 8) so that the welding wire of the welding wire gun 3 is aligned with the contact between the cover plate and the web and the contact between the cover plate and the partition plate.
Preferably, in step 9), the length of the welding wire gun 3 can be adjusted simultaneously, so that the welding wire in the welding wire gun 3 is aligned with the contact between the bottom plate and the web and the contact between the bottom plate and the partition plate.
Preferably, between steps 9) and 10), after the welding is completed, i.e. the welding gun is located at the very end of the box beam, the locking mechanism in the hexagonal motor hole is unlocked, the hexagonal shaft 19 is disengaged from the hexagonal motor hole 16, still allowing the welding gun arm to slide a distance so that the welding gun 3 does not touch the cover plate 12 when the support block needs to be lifted, and then the support block on the column is moved upwards so that the support block is located at the height of step 5).
Preferably, the length of the welding wire gun can be adjusted in the step 12) so that the welding wire in the welding wire gun 3 is aligned with the contact between the cover plate and the web and between the cover plate and the partition plate.
Preferably, when the welding gun 3 performs welding in the above steps, the welding gun may be continuously started without being turned off in order to improve welding efficiency and shorten welding time.
Compared with the prior art, the invention has the beneficial effects that:
(1) the automatic welding device is simple in structure, easy to adjust and convenient for automatically welding box beams of various sizes, and reduces the labor intensity of box beam welding personnel;
(2) the auxiliary carriage is combined with the welding wire gun support arm during welding, and the support height of the auxiliary carriage can be adjusted through the motor arranged in the support arm, so that the support height of the cover plate can be dynamically adjusted during welding, corresponding adjustment can be performed when the position of the cover plate is found or needs to be adjusted during welding, and the welding quality of the box beam is further improved;
(3) the welding device provided by the invention has the advantages that the auxiliary sliding frame and the movable clamping block driven by the air cylinder are additionally arranged, the corresponding structural parts are reasonably combined, the plates between the box-shaped beams are fixed, the traditional fixing device is not needed, the continuity and the smoothness of a welding line can be ensured, and the welding quality is improved;
(4) the auxiliary sliding frame can be adjusted in size, so that the auxiliary sliding frame can be suitable for supporting box-shaped beams of different sizes, and meanwhile, the screw rod pair is used as a means for adjusting the size, so that the auxiliary sliding frame is more finely adjusted and is suitable for welding the box-shaped beams with higher welding requirements;
(5) the auxiliary sliding frame can slide in the box-shaped beam, so that the mounting and dismounting of the fixing device are facilitated, the labor intensity for fixing the plates between the box-shaped beams is reduced, and the dismounting of the fixing device is facilitated;
(6) according to the welding method, the cover plate is welded firstly, the welding process is from top to bottom and from left to right, the welding process returns to the original point of the welding process after one welding process, the welding process is reasonable, the welding time is short, and the automatic construction is facilitated.
Drawings
FIG. 1 is a schematic structural view of one side of an automatic welding device for box beams according to the present invention;
FIG. 2 is a schematic structural view of the other side of the automatic welding device for box beams according to the present invention;
fig. 3 is a side view of the sub carriage after being put into the box girder;
fig. 4 is a view a-a of fig. 3.
Description of the reference symbols
1. Fixing the clamping block; 2. a welding wire gun brace; 3. a welding wire gun; 4. a column; 5. a wire reel; 6. a welding wire straightener; 7. a cylinder; 8. a movable clamping block; 9. a partition plate; 10. a base plate; 11. a web; 12. a cover plate; 13. a piston rod; 14. a base; 15. a welding wire gun carriage; 16. a hexagonal motor hole; 17. an auxiliary carriage; 18. a rotating shaft; 19. a hexagonal shaft; 20. a screw shaft; 21. a shoulder is formed; 24. sleeving the silk; 25. a connecting rod; 26. a support plate; 27. and a roller.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
Fig. 1-2 illustrate an automatic welding apparatus for box girders, which includes a box girder fixing unit for fixing the box girders and a welding unit;
the box-shaped beam fixing unit comprises a base 14, a fixed clamping block 1 arranged on one side of the base 14, a movable clamping block 8 arranged on the other end of the base and an auxiliary sliding frame 17 arranged in the box-shaped beam; the movable clamping block 8 is connected with a piston rod 13 of the air cylinder 7; the box girder comprises a cover plate 12, a web plate 11, a bottom plate 10 and a partition plate 9;
the welding unit comprises a welding wire gun supporting arm 2, a welding wire gun 3 arranged on the welding wire gun supporting arm 2, wherein the welding wire gun 3 is arranged on the welding wire gun supporting arm 2 through a welding wire gun bracket 15, the welding wire gun bracket 15 can rotate around the welding wire gun supporting arm 2 in the axial direction of the welding wire gun supporting arm 2, and a supporting block (not shown) used for supporting the welding wire gun supporting arm 2; a slide way is arranged at the position where the side end surface of the welding wire gun supporting arm 2 is contacted with the supporting block; the supporting shoe on be provided with the slide rail that the slide matches, the supporting shoe setting on stand 4, and can follow the stand reciprocate, welding wire gun brace 2 can the horizontal slip along the supporting shoe, if use motor drive welding wire gun brace 2 horizontal slip on the supporting shoe, the slip direction of welding wire gun brace 2 is parallel with the axis direction of box roof beam, stand 4 is located one side of box roof beam.
One end of the welding wire gun supporting arm 2 is provided with a welding wire disc 5 and a welding wire straightener 6; and after the welding wire is straightened into a straight line by the welding wire straightener, the welding wire is conveyed into the welding wire gun 3 by the wire feeder.
The number of the welding wire guns is 2, and any angle can be adjusted by using the welding wire gun bracket 15. Preferably, the gun is adjustable in length for improved welding versatility. The stand 4 on be provided with a plurality of holes and be used for the auxiliary fixation welding wire gun brace 2.
At one end portion of the welding wire gun support arm 2 where the welding wire gun 3 is provided, a joint hole capable of being matched with the auxiliary carriage 17 is provided, preferably, a hexagonal motor hole 16 is provided, a driving motor is provided in the welding wire gun support arm 2, the hexagonal motor hole is formed at an output shaft end of the driving motor, and the output shaft end of the driving motor can drive the hexagonal motor hole 16 to rotate.
As shown in fig. 3-4, the auxiliary carriage 17 includes a rotating shaft 18, connecting rods 25, a supporting plate 26, three screw sleeves 24 and rollers 27, the rotating shaft 18 includes a screw shaft 20 and a hexagonal shaft 19, the hexagonal shaft 19 can be inserted into the hexagonal motor hole 16 in a matching manner, three screw sleeves 24 are provided, two shoulders 21 are provided in the middle of the screw shaft 20, the middle screw sleeve 24 is located between the two shoulders 21, the shoulders 21 are used for limiting the sliding position of the screw sleeve 24 in the screw shaft 20, screw threads are uniformly provided on the screw shaft 20, the screw sleeves 24 are sleeved on the screw threads, four connecting rods 25 are uniformly provided in the circumferential direction of the screw sleeve 24, one ends of the connecting rods 25 are respectively hinged on the screw sleeves 24, the other ends are hinged with the supporting plate 26, and the supporting plate 26 is respectively parallel to the cover plate 12, the web 11, the bottom plate 10 and the partition plate 9 of the. The auxiliary sliding frame is characterized by further comprising a hexagonal wrench matched with the hexagonal shaft 19 and used for adjusting the distance between the supporting plates 26, when the size of the auxiliary sliding frame 17 needs to be adjusted, the hexagonal wrench is inserted into the hexagonal shaft 19, the hexagonal wrench is rotated to drive the screw rod shaft 20 to rotate, so that the screw sleeve 24 is driven to slide on the screw rod shaft 20, and finally the connecting rod 25 is driven to rotate, so that the distance between the supporting plates 26 is adjusted.
Preferably, the links 25 provided on each of the wire sleeves are identical, and the four support plates 26 are identical in size, and in order to facilitate the sliding of the sub-carriage 17, rollers 27 are provided on the support plates 26. Preferably, the rollers 27 are arranged uniformly in 2 rows and 3 columns on the support plate 26 to ensure uniform support of the secondary carriage. Preferably, the rollers 27 are universal wheels. The length of the support plate 26 is preferably the same as the length of the box girder, and it is preferable that the support plate 26 is in a sliding telescopic structure in order to facilitate welding of box girders of different lengths, so that box girders of different lengths can be accommodated.
Preferably, in order to ensure that the auxiliary carriage 17 does not deform when supporting the cover plate 12, a braking device is provided on the rotation shaft 18, so that safe operation of the auxiliary carriage is ensured, although since the screw has a self-locking function, no braking device may be provided here.
When welding, supplementary balladeur train 17 and welding unit butt joint cooperation, when welding box girder inside, hexagonal axle 19 inserts in hexagonal motor hole 16, simultaneously, is provided with locking mechanism in the hexagonal motor hole 16, and after hexagonal axle 19 inserted, locking mechanism moved, locks hexagonal axle 19, restricts its axial motion to make welding wire gun brace 2 can drive supplementary balladeur train 17 and slide in box girder, provide the gliding power of supplementary balladeur train 17 by welding wire gun brace 2. In the welding process, if the supporting position of the top plate of the box girder is found to be not in place, the driving motor in the welding wire gun support arm 2 rotates, so that the hexagonal motor hole 16 is driven to rotate, the screw shaft 20 is driven to rotate, the screw sleeve 24 is driven to slide on the screw shaft 20, and finally the connecting rod 25 is driven to rotate, so that the distance between the support plates 26 is adjusted, and dynamic support adjustment in the welding process is realized.
Preferably, the auxiliary carriage 17 of the present invention is configured to select four identical support plates, and at the same time, the distance between the support plates is adjustable, and the size of the auxiliary carriage 17 is adjustable, so that the auxiliary carriage can be used to support a box beam having a rectangular cross section.
The invention also comprises a welding method by using the automatic welding device for the box beam, which comprises the following steps:
1): pulling the movable clamping block open by using an air cylinder, vertically placing a web plate along the fixed clamping block, and placing a bottom plate along the base;
2): placing an auxiliary sliding frame 17 on the bottom plate, placing a cover plate 12 on the auxiliary sliding frame 17, rotating a hexagonal shaft 19 by using a hexagonal wrench so as to adjust the placing height of the cover plate 12, and stopping rotating the hexagonal wrench after the placing height is adjusted to be flush with the top of the web;
3): a partition plate is vertically placed along the movable clamping block, and the air cylinder pushes the movable clamping block to move so that the partition plate, the cover plate and the bottom plate are in initial contact;
4): checking whether the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, if not, rotating a hexagonal wrench for adjustment, after the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, continuously controlling the air cylinder to push the sliding clamping block to move, enabling the four plates to be tightly attached to form an unwelded box-shaped beam structure, and dismounting the hexagonal wrench;
5): moving the supporting block on the upright downwards, adjusting the welding wire gun supporting arm to slide on the supporting block, and finally adjusting the position of a welding wire gun bracket 15 to enable the welding wire gun 3 to be positioned at one end of the box beam far away from the upright 4 and enable the welding wire in the welding wire gun to be aligned to the contact positions to be welded between the cover plate and the web plate and between the cover plate and the partition wall;
6): starting the welding wire gun to start welding, controlling the welding wire gun supporting arm 2 to slide on the supporting block at a constant speed, and still enabling the welding wire gun supporting arm to slide for a certain distance after the welding is finished so as to prevent the welding wire gun 3 from touching the cover plate 12 when the supporting block descends, and completing the welding of the cover plate and the web plate and the welding of the cover plate and the outer part of the partition plate;
7): continuing to move the supporting block on the stand downwards until the hexagonal motor hole 6 in the welding wire gun supporting arm 2 is flush with the hexagonal shaft 19 of the auxiliary carriage 17 in the box-shaped beam, rotating the welding wire gun bracket to adjust the direction of the welding wire gun so as to align the welding points to be welded, adjusting the welding wire gun supporting arm 2 to slide on the supporting block so as to enable the welding wire gun supporting arm 2 to extend into the box-shaped beam, and after the hexagonal shaft 19 is clamped into the hexagonal motor hole, locking the hexagonal shaft by a locking mechanism in the hexagonal motor hole, and stopping driving the welding wire gun supporting arm to slide;
8): continuously adjusting the position of the welding wire gun bracket 15 to enable the welding wire of the welding wire gun 3 to be aligned to the contact positions between the cover plate and the web plate and between the cover plate and the partition plate, meanwhile, driving the welding wire gun supporting arm to slide to enable the welding wire gun 3 to be positioned at one end, close to the stand column 4, of the box-shaped beam, starting the welding wire gun to weld, driving the welding wire gun supporting arm to slide along the box-shaped beam at a constant speed, and after the welding is finished, still enabling the welding wire gun supporting arm 2 to slide for a certain distance to avoid the welding wire gun 3 from touching the box-shaped beam when the welding wire gun bracket 15 rotates, and at the moment, completing the welding of the cover;
9): rotating the welding wire gun bracket 15 to enable welding wires in the welding wire gun 3 to be aligned to the contact positions between the bottom plate and the web plate and between the bottom plate and the partition plate, starting the welding wire gun 3, driving the welding wire gun supporting arm to slide at a constant speed in the direction close to the upright post, and still enabling the welding wire gun supporting arm to slide for a certain distance after welding is finished so as to prevent the welding wire gun 3 from touching the cover plate 12 when the supporting block rises, and at the moment, completing welding between the bottom plate and the web plate and between the bottom plate and the partition plate;
10): unlocking a locking mechanism in the hexagonal motor hole, driving the welding wire gun supporting arm 2 to slide, so that the hexagonal shaft 19 is separated from the hexagonal motor hole 16, and then moving the supporting block on the upright column upwards so that the supporting block is positioned at the welding height in the step 5);
11): the cylinder 7 drives the movable clamping block 8 to be opened, and the movable clamping block 8 is continuously clamped after the box-shaped beam is turned over by 180 degrees;
12): and adjusting the position of the welding wire gun 3, aligning the welding wire in the welding wire gun 3 to the contact positions between the cover plate and the web plate and between the cover plate and the partition plate, starting the welding wire gun 3, driving the welding wire gun supporting arm to slide at a constant speed along the direction far away from the stand column, and after the welding is finished, upwards moving the supporting block on the stand column to the height position of the initial position of the supporting block, so that the welding of the box beam is finished. .
Preferably, the length of the welding wire gun 3 can be adjusted in the step 5), so that the welding wire in the welding wire gun is aligned with the contact positions to be welded between the cover plate and the web and between the cover plate and the partition wall.
Preferably, step 6) further comprises: if the position among the cover plate, the web plate and the partition plate is found to be changed in the welding process, a hexagonal wrench can be used to adjust the size of the auxiliary sliding frame 17, so that the position of the cover plate is adjusted, and the purpose of real-time adjustment in the welding process is achieved.
Preferably, the length of the welding wire gun 3 can be adjusted in the step 8) so that the welding wire of the welding wire gun 3 is aligned with the contact between the cover plate and the web and the contact between the cover plate and the partition plate.
Preferably, step 8) further comprises: if the position among the cover plate, the web plate and the partition plate is found to be changed in the welding process, the hexagonal motor hole 16 can be driven to rotate so as to adjust the size of the auxiliary sliding frame 17, and therefore the position of the cover plate is adjusted, and the purpose of real-time adjustment in the welding process is achieved.
Preferably, before step 9), the locking mechanism can also be unlocked, and the welding wire gun support arm 2 is driven to slide so that the hexagonal shaft 19 is disengaged from the hexagonal motor hole 16, so that no additional support of the auxiliary carriage is added in the subsequent welding step.
Preferably, in step 9), the length of the welding wire gun 3 can be adjusted simultaneously, so that the welding wire in the welding wire gun 3 is aligned with the contact between the bottom plate and the web and the contact between the bottom plate and the partition plate.
Preferably, between steps 9) and 10), after the welding is completed, i.e. the welding gun is located at the very end of the box beam, the locking mechanism in the hexagonal motor hole is unlocked, and the hexagonal shaft 19 is disengaged from the hexagonal motor hole 16, still allowing the welding gun arm to slide a distance to avoid the welding gun 3 touching the cover plate 12 when the support block is lifted, and then moving the support block on the column upwards to make the support block at the height of step 5).
Preferably, the length of the welding wire gun can be adjusted in the step 12) so that the welding wire in the welding wire gun 3 is aligned with the contact between the cover plate and the web and between the cover plate and the partition plate.
Preferably, when the welding gun 3 performs welding in the above steps, the welding gun may be continuously started without being turned off in order to improve welding efficiency and shorten welding time.
According to the steps, in the welding process, each welding line of the box-shaped beam is formed by one-step in-place welding, no pause step is formed in the middle, and the welding lines are uniform and reliable; simultaneously, in welding process, do not use traditional fixing device, but used supplementary balladeur train to fix, this fixed knot structure does not shelter from the junction of each board of box girder to make the welding seam evenly continuous, simultaneously, this supplementary balladeur train drives through welding wire gun brace arm, the energy can be saved, simultaneously, this supplementary balladeur train installation, dismantlement convenience are obviously superior to traditional box girder fixed equipment. Meanwhile, the auxiliary sliding frame is used for achieving the purpose of dynamic adjustment in the welding process of the box-shaped beam.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. An automatic welding device for a box beam is characterized by comprising a welding unit and a box beam fixing unit for fixing the box beam;
the box-shaped beam fixing unit comprises a base, a fixed clamping block arranged on one side of the base, a movable clamping block arranged on the other side of the base and an auxiliary sliding frame arranged in the box-shaped beam; the movable clamping block is connected with a piston rod of the air cylinder; the box beam comprises a cover plate, a web plate, a bottom plate and a partition plate;
the welding unit comprises a welding wire gun supporting arm and a welding wire gun arranged on the welding wire gun supporting arm, the welding wire gun is arranged on the welding wire gun supporting arm through a welding wire gun bracket, and the welding wire gun bracket can rotate around the welding wire gun supporting arm in the axial direction of the welding wire gun supporting arm and a supporting block used for supporting the welding wire gun supporting arm; the welding wire gun support arm is provided with a welding wire gun end part, a joint hole capable of being in butt joint fit with the auxiliary sliding frame is arranged at the welding wire gun support arm end part, and a slide way is arranged at the position where the side end surface of the welding wire gun support arm is in contact with the support block; the welding wire gun support arm can slide left and right along the supporting block, the sliding direction of the welding wire gun support arm is parallel to the axial direction of the box-shaped beam, the upright column is positioned on one side of the box-shaped beam, joint holes are hexagonal motor holes, a driving motor is arranged in the welding wire gun support arm, the hexagonal motor holes are formed in the output shaft end of the driving motor, the auxiliary sliding frame comprises a rotating shaft, a connecting rod, a supporting plate, a screw sleeve and rollers, the rotating shaft comprises a screw shaft and a hexagonal shaft, the hexagonal shaft can be matched and extended into the hexagonal motor holes, the number of the screw sleeves is three, two convex shoulders are arranged at the middle position of the screw shaft, the middle screw sleeve is positioned between the two convex shoulders, the convex shoulders are used for limiting the sliding position of the screw sleeve on the screw shaft, and screws are uniformly arranged on the screw shaft, the silk braid cover is established on the lead screw thread, evenly be provided with four connecting rods respectively in the circumference of every silk braid, the one end of connecting rod articulates respectively and sets up on the silk braid, the articulated joint support board of one end in addition, and the backup pad is on a parallel with the apron of box roof beam respectively, the web, bottom plate and baffle, when the welding, supplementary balladeur train and welding unit cooperation, when welding box roof beam inside, the hexagonal shaft inserts in the hexagonal motor hole, be provided with locking mechanism in the hexagonal motor hole, make the hexagonal shaft insert the back, lock the hexagonal shaft, thereby make gun arm brace can drive supplementary balladeur train and slide in box roof beam, provide the gliding power of supplementary balladeur train by welding wire gun arm brace.
2. The automatic welding device for box beam according to claim 1, further comprising a hexagonal wrench engaged with the hexagonal shaft for adjusting the distance between the support plates, wherein when the size of the auxiliary carriage is required to be adjusted, the hexagonal wrench is inserted into the hexagonal shaft, the hexagonal wrench is rotated to rotate the screw shaft, thereby driving the screw bushing to slide on the screw shaft, and finally the connecting rod is rotated to adjust the distance between the support plates.
3. The automatic welding device for box beams according to claim 1, wherein in the welding process, if the box beam cover plate is found to be deviated, the driving motor rotates, so that the hexagonal motor hole is driven to rotate, the size of the auxiliary carriage is adjusted, and dynamic support adjustment in the welding process is realized.
4. An automatic welding device for box beam according to claim 1 or 2, characterized in that said welding wire gun is adjustable in length.
5. A method for welding box beams using the automatic welding device for box beams according to any one of claims 1 to 4, which is characterized by comprising the following steps:
1): pulling the movable clamping block open by using an air cylinder, vertically placing a web plate along the fixed clamping block, and placing a bottom plate along the base;
2): placing an auxiliary sliding frame on the bottom plate, placing a cover plate on the auxiliary sliding frame, and rotating the hexagonal shaft by using a hexagonal wrench so as to adjust the placing height of the cover plate, and stopping rotating the hexagonal wrench after the placing height is adjusted to be flush with the top of the web plate;
3): a partition plate is vertically placed along the movable clamping block, and the air cylinder pushes the movable clamping block to move so that the partition plate, the cover plate and the bottom plate are in initial contact;
4): checking whether the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, if not, rotating a hexagonal wrench for adjustment, after the cover plate, the bottom plate, the partition plate and the web plate are parallel and level, continuously controlling the air cylinder to push the movable clamping block to move, enabling the four plates to be tightly attached to form an unwelded box-shaped beam structure, and dismounting the hexagonal wrench;
5): moving the supporting block on the upright downwards, adjusting a welding wire gun supporting arm to slide on the supporting block, and finally adjusting the position of a welding wire gun bracket to enable the welding wire gun to be positioned at one end of the box beam far away from the upright, and enabling a welding wire in the welding wire gun to be aligned to positions to be welded between the cover plate and the web plate and between the cover plate and the partition plate;
6): starting the welding wire gun to start welding, simultaneously controlling the welding wire gun supporting arm 2 to slide on the supporting block at a constant speed, and still enabling the welding wire gun supporting arm to slide for a certain distance after the welding is finished so as to prevent the welding wire gun from touching the cover plate when the supporting block descends, and at the moment, completing the welding of the cover plate and the web plate and the welding of the cover plate and the outer part of the partition plate;
7): continuing to move the support block on the stand downwards until a hexagonal motor hole in the welding wire gun support arm is flush with a hexagonal shaft of an auxiliary sliding frame in the box-shaped beam, rotating the welding wire gun support frame to adjust the direction of the welding wire gun so as to align welding points, driving the welding wire gun support arm to slide on the support block so as to enable the welding wire gun support arm to extend into the box-shaped beam, clamping the hexagonal shaft into the hexagonal motor hole, locking the shaft by a locking mechanism in the hexagonal motor hole, and stopping driving the welding wire gun support arm to slide;
8): continuously fine-adjusting the position of the welding wire gun bracket to enable the welding wire of the welding wire gun to be aligned to the contact positions between the cover plate and the web plate and between the cover plate and the partition plate, simultaneously driving the welding wire gun supporting arm to slide to enable the welding wire gun to be positioned at one end, close to the stand column, of the box-shaped beam, starting the welding wire gun to start welding, driving the welding wire gun supporting arm to slide along the box-shaped beam at a constant speed, and after the welding is finished, still enabling the welding wire gun supporting arm to slide for a certain distance to avoid that the welding wire gun touches the box-shaped beam when the welding wire gun bracket rotates, and at the moment, completing the welding of;
9): rotating a welding wire gun bracket to enable a welding wire in a welding wire gun to be aligned to the contact positions between the bottom plate and the web plate and between the bottom plate and the partition plate, starting the welding wire gun, driving a welding wire gun supporting arm to slide towards the upright post at a constant speed along the axis of the box beam, and still enabling the welding wire gun supporting arm to slide for a certain distance after welding is finished so as to avoid the welding wire gun from touching the cover plate when the supporting block rises, and at the moment, welding the bottom plate and the web plate as well as the bottom plate and the partition plate is finished;
10): unlocking a locking mechanism in the hexagonal motor hole, driving a welding wire gun supporting arm to slide, so that the hexagonal shaft is separated from the hexagonal motor hole, and then moving a supporting block on the upright column upwards so that the supporting block is positioned at the welding height in the step 5);
11): the movable clamping block is opened by the driving of the cylinder, and the movable clamping block is continuously clamped after the box-shaped beam is turned over for 180 degrees;
12): and adjusting the position of the welding wire gun, aligning the welding wire in the welding wire gun to the contact positions between the bottom plate and the web plate and between the bottom plate and the partition plate, starting the welding wire gun, driving the welding wire gun supporting arm to slide at a constant speed along the direction away from the stand column, and after the welding is finished, upwards moving the supporting block on the stand column to the initial position height position of the supporting block, so that the welding of the box beam is finished.
6. A box beam welding method as set forth in claim 5, further comprising in step 8): if the position among the cover plate, the web plate and the partition plate is found to be changed in the welding process, the hexagonal motor hole can be driven to rotate so as to adjust the size of the auxiliary sliding frame, adjust the position of the cover plate and achieve the purpose of real-time adjustment in the welding process.
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| CN201811449246.1A CN109366028B (en) | 2018-11-30 | 2018-11-30 | Automatic welding device for box-shaped beam and using method |
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| CN201811449246.1A CN109366028B (en) | 2018-11-30 | 2018-11-30 | Automatic welding device for box-shaped beam and using method |
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| CN109366028B true CN109366028B (en) | 2020-09-08 |
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| CN110026725A (en) * | 2019-05-17 | 2019-07-19 | 安徽金和鑫钢结构有限公司 | A kind of assembling apparatus of steel construction box column |
| DE102019122308A1 (en) * | 2019-08-20 | 2021-02-25 | Baosteel Lasertechnik Gmbh | Method of transport in the manufacture of a welded T-beam profile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10211573A (en) * | 1997-01-24 | 1998-08-11 | Nippon Kokan Light Steel Kk | Automatic welding equipment for metallic box structure |
| US8646765B2 (en) * | 2010-05-06 | 2014-02-11 | Lincoln Global, Inc. | End clamp and method of use there for |
| CN202780313U (en) * | 2012-07-19 | 2013-03-13 | 山东丰汇设备技术有限公司 | Universal adjustable box beam assembling and welding device |
| CN204735819U (en) * | 2015-06-19 | 2015-11-04 | 天津中德职业技术学院 | Box beam welding is equipped |
| CN108356471B (en) * | 2018-05-16 | 2019-12-24 | 武汉海王机电工程技术有限公司 | Auxiliary assembling and welding device for steel box girder |
| CN108340120B (en) * | 2018-05-16 | 2019-12-24 | 武汉海王机电工程技术有限公司 | Assembly welding method of auxiliary assembly welding device for steel box girder |
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