CN108608214B - Corrugated web H-shaped steel welding forming equipment and method - Google Patents
Corrugated web H-shaped steel welding forming equipment and method Download PDFInfo
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Abstract
The invention discloses a corrugated web H-shaped steel welding forming device and a method, which sequentially comprise a web uncoiling device, a pair rolling forming device, a wing plate uncoiling device and a welding device along the material advancing direction of corrugated web H-shaped steel (4). The corrugated web H-shaped steel welding forming equipment utilizes the rolling bending forming principle to cold-bend a flat plate into a corrugated plate, and then the corrugated plate and the other two wing plates are adaptively welded into the corrugated web H-shaped steel. The device has the advantages of simple principle, reasonable and reliable welding and strong feasibility. Corresponding corrugated rollers are matched for the corrugated web H-shaped steel with different specifications, the uncoiling position is adjusted, welding in place is guaranteed, and production requirements of the corrugated web H-shaped steel with different specifications are met.
Description
Technical Field
The invention relates to the field of metal plate processing and forming equipment, in particular to corrugated web H-shaped steel welding and forming equipment and a corrugated web H-shaped steel welding and forming method.
Background
The H-shaped steel widely adopted at present is generally hot-rolled I-shaped steel, hot-rolled H-shaped steel and welded H-shaped steel, the traditional process of the H-shaped steel is limited, and the steel consumption is large due to the thicker web thickness. The corrugated web H-shaped steel is also called as corrugated web H-shaped steel, and the corrugated web is an innovative product developed by the steel structure industry aiming at the defects of the existing H-shaped steel, and the web is changed from a flat plate to a corrugated plate (corrugated plate), so that the limitation of the traditional flat web H-shaped steel Gao Houbi is broken through, the problem that the flat web is easy to locally unstably deform is solved, and the weight of steel used under the same strength is greatly reduced. Because the thinner steel plate is adopted to realize stronger bearing capacity, the steel consumption is greatly reduced, and the corrugated web H-shaped steel is an energy-saving and environment-friendly novel section bar which accords with the national industrial policy of developing low-carbon economy, and the existing pattern of the domestic H-shaped steel market is deeply influenced, so the corrugated web H-shaped steel has wide market prospect.
The product popularization focus needs to solve the problem of high-quality large-scale continuous production line industrial production of corrugated web H-shaped steel. At present, no mature process technology and special production line equipment exist, corrugated plates are generally formed by cold bending, and before corrugated web H-shaped steel is comprehensively welded and formed, corrugated webs and flange steel plates which are respectively cut and formed are assembled and spot-welded into an H-shaped combination, and the quality of the combination assembly and spot welding directly influences the quality of the corrugated web H-shaped steel formed by subsequent welding. The welding technology becomes the current difficult problem due to the change of the web shape, the process of the corrugated web H-shaped combination running to the welding station is not automated, the corrugated web H-shaped steel is independent of each other, the process is not continuous, the corrugated web H-shaped steel is hoisted to the welding station by adopting hoisting equipment, then manual welding is performed, the welding efficiency is low, the labor intensity is high, and the welding quality is difficult to ensure. Therefore, the current situations of low efficiency, high strength, dependence on a crane and manual carrying and overturning of the parts are eliminated, and the process and equipment for the high-efficiency and high-quality corrugated web H-shaped steel are developed, so that the large-scale continuous production of the corrugated web H-shaped steel is realized.
The corrugated plate is formed by cold bending, the corrugated web plate formed by cutting and the flange steel plate are assembled and spot welded into an H-shaped combination, and then the H-shaped combination is lifted or conveyed to a welding station for manual welding or machine welding. The continuity is poor, and the cold bending process adopts roll bending shaping usually, obtains the buckled plate to be the transverse ripple, and the board width direction presents the wave promptly, for obtaining the H shaped steel of fixed height, cuts the buckled plate of certain length usually, then welds with the pterygoid lamina, and the H shaped steel that obtains this moment often is not long enough to the cutting is difficult to guarantee that the incision is level and straight, makes welding quality be difficult to guarantee. The corrugated plate is formed by rolling and bending, namely, the longitudinal corrugation is formed, and the corrugated plate presents waves in the longitudinal direction, so that the method has the greatest advantages that the corrugated plate is not required to be cut, the production requirement of H-shaped steel corrugated webs in batches can be met only by customizing steel coils with fixed plate widths, the plate widths are fixed, the plate edges are neat, and the welding is facilitated.
The corrugated plate is obtained by roll bending and forming, so that the workload is increased, the quality is more difficult to ensure, the length of the obtained H-shaped steel is limited by the process, other methods except for splice welding lengthening are not available, the application range is narrow, and the method is not applicable to long beam application occasions. The quality of the combined assembly and spot welding directly influences the quality of the corrugated web H-shaped steel formed by subsequent welding. Each process has no continuity, the assembled H-shaped steel subjected to spot welding is lifted to a welding station by using lifting equipment or other conveying equipment, the problem of difficult welding caused by the change of the shape of a web is not solved, manual welding is performed, the welding efficiency is low, the labor intensity is high, and the welding quality is difficult to guarantee.
Noun introduction:
corrugated plate: the corrugated plate is also called as corrugated plate, wave plate, corrugated plate, etc. and is made up by using steel plate through the processes of cold bending and forming various wave forms.
Corrugated web H-section steel: the corrugated web plate comprises a corrugated web plate and an upper flange plate and a lower flange plate, wherein the upper flange plate is parallel to the lower flange plate or forms a certain angle, single-sided fillet welds or double-sided fillet welds are adopted between the corrugated web plate and the upper flange plate, the corrugated web plate is determined specifically according to the thickness of the corrugated web plate and the welding process, and the corrugation of the corrugated web plate is a waveform (which can be in the shape of a trapezoid, a sine curve, a rectangle, a fold line and the like) determined through a strict test at present.
Disclosure of Invention
In order to solve the problem that the manual welding efficiency is low when the existing corrugated web H-shaped steel is adopted. The invention provides a corrugated web H-shaped steel welding forming device and a method, which utilize a rolling bending forming principle to cold-bend a flat plate into a corrugated plate, and then the corrugated plate and the other two wing plates are welded into the corrugated web H-shaped steel in a self-adaptive mode. The device has the advantages of simple principle, reasonable and reliable welding and strong feasibility. Corresponding corrugated rollers are matched for the corrugated web H-shaped steel with different specifications, the uncoiling position is adjusted, welding in place is guaranteed, and production requirements of the corrugated web H-shaped steel with different specifications are met.
The technical scheme adopted for solving the technical problems is as follows: the corrugated web H-shaped steel welding forming equipment comprises a web uncoiling device, a pair rolling forming device, a wing plate uncoiling device and a welding device which are sequentially arranged along the material travelling direction of the corrugated web H-shaped steel; the web uncoiling device comprises a third uncoiler which can open and flatten a horizontal steel coil into a flat plate; the pair of rolling forming devices comprise an upper roller and a lower roller which are arranged up and down, and the upper roller and the lower roller can form a flat plate into a corrugated plate through cold bending; the wing plate uncoiling device comprises a first uncoiler and a second uncoiler, wherein the first uncoiler can open and flatten a first vertical steel coil into a first wing plate, and the second uncoiler can open and flatten a second vertical steel coil into a second wing plate; the welding device comprises a first welding machine and a second welding machine, wherein the first welding machine can be used for fixedly welding the corrugated plate with the first wing plate, and the second welding machine can be used for fixedly welding the corrugated plate with the second wing plate.
The third uncoiler can move along the material advancing direction of corrugated web H-shaped steel, the first uncoiler can move towards a direction close to or far away from the corrugated plate, and the second uncoiler can move towards a direction close to or far away from the corrugated plate.
The welding gun of the welding device can undulate along the plate surface of the corrugated plate, the first welding machine can spot-weld the upper part and the lower part of one side of the corrugated plate, and the second welding machine can spot-weld the upper part and the lower part of the other side of the corrugated plate.
The first welding machine is a welding wire electric welding machine, the first welding machine comprises a first welding machine body and a self-adaptive welding mechanism, the self-adaptive welding mechanism comprises an upper self-adaptive welding component and a lower self-adaptive welding component which are arranged in an up-down symmetrical mode, and the upper self-adaptive welding component and the lower self-adaptive welding component are connected with the first welding machine body.
The upper self-adaptive welding assembly comprises a welding gun, a walking roller, a follower rod, a crank, a swing rod, a first support and a second support, wherein the welding gun faces towards the joint of the corrugated plate and the first wing plate, and the first welding machine and the second welding machine are identical in structure and mirror images.
The welding gun and the walking roller are fixed at one end of the follow-up rod, the other end of the follow-up rod is hinged with one end of the crank, the other end of the crank is hinged with the first welding machine body through the first support, one end of the swinging rod is hinged with the middle part of the follow-up rod, and the other end of the swinging rod is hinged with the first welding machine body through the second support.
The walking roller is a single roller or a double roller, the walking roller can roll on the surface of the corrugated plate, and the follow-up rod of the upper self-adaptive welding assembly is connected with the follow-up rod of the lower self-adaptive welding assembly through a spring.
The first welding machine is a resistance welding machine, the first welding machine comprises a wheel electrode, the first welding machine also comprises a touch type or wheel electrode, and the first welding machine and the second welding machine are identical in structure and mirror images. Or the first welding machine is two industrial welding robots which are arranged up and down, and the first welding machine and the second welding machine have the same structure and are mirror images.
The upper roller and the lower roller have the same structure; the calculation formula of the pitch circle diameter of the upper roller is as follows: d=np/pi; d is the pitch diameter of the upper roller, and the unit is mm; n is the number of circumferential wave troughs and has no unit; p is the wavelength of the corrugated plate, and the unit is mm; pi is the circumference ratio; radius r of columnar crest arc of upper roller 0 The radius r of the inner arc is 0.5 mm-3 mm smaller than that of the corrugated plate; the radius of the columnar wave trough arc of the upper roller is 3 mm-12 mm larger than that of the columnar wave crest arc of the upper roller.
The corrugated web H-shaped steel welding and forming method adopts the corrugated web H-shaped steel welding and forming equipment, and comprises the following steps of:
step 1, a horizontal steel coil is unfolded and flattened into a flat plate through a third uncoiler, and the flat plate is cold-bent and formed into a corrugated plate through an upper roller and a lower roller; the two vertical steel coils are unfolded and flattened into a first wing plate and a second wing plate through a first uncoiler and a second uncoiler respectively;
and 2, welding the corrugated plate, the first wing plate and the second wing plate into corrugated web H-shaped steel by a first welding machine and a second welding machine.
The beneficial effects of the invention are as follows: the corrugated web H-shaped steel welding forming equipment utilizes the rolling bending forming principle to cold-bend a flat plate into a corrugated plate, and then the corrugated plate and the other two wing plates are adaptively welded into the corrugated web H-shaped steel. The device has the advantages of simple principle, reasonable and reliable welding and strong feasibility. Corresponding corrugated rollers are matched for the corrugated web H-shaped steel with different specifications, the uncoiling position is adjusted, welding in place is guaranteed, and production requirements of the corrugated web H-shaped steel with different specifications are met. The method is helpful for realizing high-quality large-scale continuous production line industrial production of the corrugated web H-shaped steel, reduces labor intensity, greatly reduces steel consumption, is efficient, high-quality, environment-friendly and economic, and has wide market prospect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention 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 invention.
Fig. 1 is a front view of a corrugated web H-section welding forming apparatus according to the present invention.
Fig. 2 is a top view of the corrugated web H-section welding forming apparatus of the present invention.
Fig. 3 is a schematic structural view of a first welding apparatus.
Fig. 4 is a schematic structural view of a second welding apparatus.
Fig. 5 is a schematic structural view of a third welding apparatus.
Fig. 6 is a schematic structural view of a fourth welding apparatus.
Fig. 7 is a cross-sectional and dimension-labeled drawing of a conventional corrugated plate.
Fig. 8 is a roll shape and sizing drawing of the roll of the present invention.
Fig. 9 is an isometric view of a conventional large-gauge corrugated web H-section steel.
Fig. 10 is an isometric view of a conventional small gauge corrugated web H-section steel.
1. Corrugated plates; 2. a first wing plate; 3. a second wing plate; 4. corrugated web H-section steel; 5. a flat plate;
11. a first unwinder; 12. a second unwinder; 13. a third uncoiler;
20. an upper roller; 21. a lower roller;
31. a first welder; 32. a second welder; 33. a wheel electrode; 33. touch or wheel type electrodes;
300. a welding gun; 301. a welding wire; 302. a walking roller; 303. a spring; 304. a follower lever; 305. a crank; 306. swing rod; 307. a first support; 308. and a second support.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
The corrugated web H-shaped steel welding forming equipment comprises a web uncoiling device, a pair rolling forming device, a wing plate uncoiling device and a welding device which are sequentially arranged along the material travelling direction F of the corrugated web H-shaped steel 4; the web uncoiling device comprises a third uncoiler 13, and the third uncoiler 13 can open and flatten a horizontal steel coil into a flat plate 5; the pair of rolling forming devices comprises an upper roller 20 and a lower roller 21 which are arranged up and down, and the upper roller 20 and the lower roller 21 can form the flat plate 5 into the corrugated plate 1 by cold bending; the wing plate uncoiling device comprises a first uncoiler 11 and a second uncoiler 12, wherein the first uncoiler 11 can open and flatten a first vertical steel coil into a first wing plate 2, and the second uncoiler 12 can open and flatten a second vertical steel coil into a second wing plate 3; the welding device comprises a first welding machine 31 and a second welding machine 32, wherein the first welding machine 31 can weld and fix one side edge of the corrugated plate 1 with the first wing plate 2, and the second welding machine 32 can weld and fix the other side edge of the corrugated plate 1 with the second wing plate 3, as shown in fig. 1 and 2.
Specifically, a horizontal steel coil on the left side in fig. 1 is unfolded and flattened into a flat plate 5 by a third uncoiler 13, and is cold-formed into a corrugated plate 1 by a pair of upper rollers 20 and lower rollers 21; the two vertical steel coils are symmetrically separated from two sides of the center line of the material, and are unfolded and flattened into a first wing plate 2 and a second wing plate 3 through a first uncoiler 11 and a second uncoiler 12 respectively. The corrugated plate 1, the first wing plate 2 and the second wing plate 3 are welded into corrugated web H-shaped steel 4 through a first welding machine 31 and a second welding machine 32 on two sides, and are discharged along the material travelling direction F, as shown in figures 1, 2, 9 and 10.
Wherein, the upper roller 20 rotates around the rotating direction R0, and the lower roller 21 rotates around the rotating direction R1; for corrugated web H-shaped steel of different specifications, the first uncoiler 11 can be adjusted along the uncoiler position adjusting direction K1, namely, the first uncoiler 11 can move towards the direction close to or far away from the corrugated plate 1. The second decoiler 12 is adjustable in the decoiler position adjustment direction K2, i.e. the second decoiler 112 is movable in a direction towards or away from the corrugated board 1. The third unwinder 13 is movable in the material travelling direction F of the corrugated web H-section steel 4. The first welding machine 31 and the second welding machine 32 can meet the welding requirements of different corrugated webs, and the positions of welding points can be automatically adjusted along the material direction F.
In the present embodiment, the welding gun of the welding apparatus can be fluctuated along the plate surface of the corrugated plate 1, the first welder 31 can spot-weld the upper and lower sides of one side of the corrugated plate 1, and the second welder 32 can spot-weld the upper and lower sides of the other side of the corrugated plate 1. So that the welding guns of the first welding machine 31 and the second welding machine 32 always undulate along the corrugated web surface on a straight line perpendicular to the center line of the materials to weld in a self-adapting way. The corrugated web H-shaped steel 4 is formed by welding corrugated plates 1, wing plates 2 and wing plates 3, four welding seams are formed, welding seams on the upper side and the lower side of each side are respectively completed by a first welding machine 31 and a second welding machine 32, each welding machine is provided with two sets of self-adaptive mechanisms, and the upper part and the lower part of one side of the corrugated web H-shaped steel 4 are respectively welded.
In the present embodiment, the first welder 31 and the second welder 32 may be implemented in a variety of ways. For example, the first welder 31 and the second welder 32 are each a wire welder that uses a wire as a welding material. The first welder 31 includes a first welder body and an adaptive welding mechanism including an upper adaptive welding assembly and a lower adaptive welding assembly that are disposed symmetrically up and down, both of which are connected to the first welder body.
Specifically, the upper adaptive welding assembly of the first welding machine 31 includes a welding gun 300, a walking roller 302, a follower rod 304, a crank 305, a swing rod 306, a first support 307 and a second support 308, and the welding gun 300 of the first welding machine 31 faces to the connection part of the corrugated plate 1 and the first wing plate 2. The first welder 31 and the second welder 32 have the same structure, and the first welder 31 and the second welder 32 are mirror images of each other on both left and right sides of the corrugated plate 1, as shown in fig. 3.
The welding gun 300 and the walking roller 302 are fixed at the head end of the follower rod 304, the tail end of the follower rod 304 is hinged with one end of the crank 305, the other end of the crank 305 is hinged with the first support 307, the first support 307 is fixedly connected with the first welding machine body, one end of the swinging rod 306 is hinged with the middle part of the follower rod 304, the other end of the swinging rod 306 is hinged with the second support 308, and the second support 308 is fixedly connected with the first welding machine body, as shown in fig. 3. The walking roller 302 is a single roller or a double roller (as shown in fig. 4), the walking roller 302 can roll on the surface of the corrugated plate 1, and the follower rod 304 of the upper adaptive welding assembly is connected with the follower rod 304 of the lower adaptive welding assembly through a spring 303.
The single roller is a drum-shaped wheel or a spherical wheel, and the distance from each point on the outline of the single roller to the wheel center is unchanged; the welding wire 301 can be automatically fed to the welding gun 300; the follower rod 304 of the upper adaptive welding assembly and the follower rod 304 of the lower adaptive welding assembly are connected together through a spring 303, so that the walking roller 302 is always closely attached to the surface of the corrugated web (corrugated plate 1).
In order to keep the advancing direction perpendicular to the advancing direction of the corrugated web plate, a joint is added on the follower rod 304, namely the walking roller 302 of the single roller is replaced by a double roller with a hinged support, so that a common roller is adopted. The welding gun 300 is fixed on the hinged support, so that a more ideal welding effect is maintained.
In this embodiment, the first welder 31 and the second welder 32 may be resistance welding machines, the first welder 31 includes a wheel electrode 33, the first welder 31 further includes a touch or wheel electrode 34, and a current loop is continuously formed to complete welding. The first welder 31 and the second welder 32 have the same structure, and the first welder 31 and the second welder 32 are mirror images of each other on both left and right sides of the corrugated plate 1, as shown in fig. 5.
In this embodiment, the first welding machine 31 and the second welding machine 32 may be two industrial welding robots disposed up and down, that is, the welding device may adopt four industrial robots to weld, two on each side of the corrugated plate 1, and respectively weld the upper and lower sides of each side of the corrugated plate 1; one on each side can be adopted to finish the welding of the upper part and the lower part. The industrial robots (the first welding machine 31) and the industrial robots (the second welding machine 32) are distributed on two sides of the corrugated web H-shaped steel finished product 4. The first welder 31 and the second welder 32 have the same structure, and the first welder 31 and the second welder 32 are mirror images of each other at both left and right sides of the corrugated plate 1, as shown in fig. 6.
In the present embodiment, the upper roll 20 and the lower roll 21 are all identical in structure and size, and the trough of the upper roll 20 corresponds to the crest of the lower roll 21 when rolling the flat plate 5, as shown in fig. 1. The following describes the design in terms of the size and structure of the upper roll 20 and the lower roll 21.
The calculation formula of the pitch diameter of the upper roll 20 is: d=np/pi; wherein D is the pitch diameter of the upper roll 20 in mm; n is the number of circumferential wave troughs and has no unit; p is the wavelength of the corrugated plate 1, and the unit is mm; pi is the circumference ratio. The corrugated plate 1 is marked in section and dimension as shown in fig. 7, for example: taking n=8, p=400 mm, then d= 1018.6mm.
Column shape of upper roll 20Radius r of crest arc 0 The radius r of the inner arc is 0.5 mm-3 mm smaller than that of the corrugated plate 1; radius r of cylindrical valley arc of upper roll 20 0 +t ratio of cylindrical peak arc r of upper roll 20 0 And t=3 mm to 12mm. For example, a columnar peak arc r 0 In order to be slightly smaller than the radius r of the inner circular arc of the corrugated plate, the circular arc of the columnar trough is r because the corrugated plate has a certain deformation elastic recovery coefficient 0 +t. Such as: taking r=81 mm, t=10, then r+t=91 mm, then r 0 ＝80mm，r 0 +t=90 mm is a possible value, or a smaller value. For corrugated web H-section steel of different specifications, the corresponding roll shape parameters and adjustment parameters are different, as shown in fig. 7 and 8.
For ease of understanding and description, the present invention is described in terms of absolute positional relationships, wherein the azimuth term "up" refers to the upper direction in fig. 1, "down" refers to the lower direction in fig. 1, "left" refers to the left direction in fig. 3, and "right" refers to the right direction in fig. 3. It is to be understood that the present invention uses the viewing angle of the reader reading the present invention. The above directional terms should not be construed or interpreted as limiting the scope of the invention. For example, the third uncoiler 13 can open and flatten the vertical coil of steel into a flat plate 5; the first uncoiler 11 can open and flatten the first horizontal steel coil into the first wing plate 2, the second uncoiler 12 can open and flatten the second horizontal steel coil into the second wing plate 3, namely, the corrugated web H-shaped steel welding forming equipment can rotate 90 degrees by taking the F direction in fig. 2 as an axis.
The corrugated web H-shaped steel welding and forming method adopts the corrugated web H-shaped steel welding and forming equipment, and comprises the following steps of:
step 1, a horizontal steel coil is unfolded and flattened into a flat plate 5 through a third uncoiler 13, and the flat plate 5 is cold-formed into a corrugated plate 1 through an upper roller 20 and a lower roller 21; the two vertical steel coils are unfolded and flattened into a first wing plate 2 and a second wing plate 3 through a first uncoiler 11 and a second uncoiler 12 respectively;
and 2, welding the corrugated plate 1, the first wing plate 2 and the second wing plate 3 into corrugated web H-shaped steel 4 by a first welding machine 31 and a second welding machine 32.
The foregoing description of the embodiments of the invention is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention shall fall within the scope of the patent. In addition, the technical characteristics and technical scheme, technical characteristics and technical scheme can be freely combined for use.
Claims (6)
1. The corrugated web H-shaped steel welding forming equipment is characterized by comprising a web uncoiling device, a counter rolling forming device, a wing plate uncoiling device and a welding device which are sequentially arranged along the material travelling direction of corrugated web H-shaped steel (4); the web uncoiling device comprises a third uncoiler (13), wherein the third uncoiler (13) can open and flatten a horizontal steel coil into a flat plate (5); the pair of rolling forming devices comprises an upper roller (20) and a lower roller (21) which are arranged up and down, and the upper roller (20) and the lower roller (21) can form a flat plate (5) into a corrugated plate (1) through cold bending; the wing plate uncoiling device comprises a first uncoiler (11) and a second uncoiler (12), wherein the first uncoiler (11) can open and flatten a first vertical steel coil into a first wing plate (2), and the second uncoiler (12) can open and flatten a second vertical steel coil into a second wing plate (3); the welding device comprises a first welding machine (31) and a second welding machine (32), wherein the first welding machine (31) can weld and fix the corrugated plate (1) and the first wing plate (2), and the second welding machine (32) can weld and fix the corrugated plate (1) and the second wing plate (3);
the welding gun of the welding device can undulate along the plate surface of the corrugated plate (1), the first welding machine (31) can perform spot welding on the upper part and the lower part of one side of the corrugated plate (1), and the second welding machine (32) can perform spot welding on the upper part and the lower part of the other side of the corrugated plate (1);
the first welding machine (31) is a welding wire electric welding machine, the first welding machine (31) comprises a first welding machine body and a self-adaptive welding mechanism, the self-adaptive welding mechanism comprises an upper self-adaptive welding assembly and a lower self-adaptive welding assembly which are arranged in an up-down symmetrical mode, and the upper self-adaptive welding assembly and the lower self-adaptive welding assembly are connected with the first welding machine body;
the upper self-adaptive welding assembly comprises a welding gun (300), a walking roller (302), a follow-up rod (304), a crank (305), a swing rod (306), a first support (307) and a second support (308), wherein the welding gun (300) faces towards the joint of the corrugated plate (1) and the first wing plate (2), and the first welding machine (31) and the second welding machine (32) have the same structure and are mirror images;
the welding gun (300) and the walking roller (302) are fixed at one end of the follow-up rod (304), the other end of the follow-up rod (304) is hinged with one end of the crank (305), the other end of the crank (305) is hinged with the first welding machine body through the first support (307), one end of the swinging rod (306) is hinged with the middle part of the follow-up rod (304), and the other end of the swinging rod (306) is hinged with the first welding machine body through the second support (308).
2. Corrugated web H-section steel welding forming apparatus according to claim 1, characterized in that the third uncoiler (13) is movable in the material travelling direction of the corrugated web H-section steel (4), the first uncoiler (11) is movable in a direction towards or away from the corrugated plate (1), and the second uncoiler (12) is movable in a direction towards or away from the corrugated plate (1).
3. The corrugated web H-section steel welding forming apparatus according to claim 1, wherein the running roller (302) is a single roller or a double roller, the running roller (302) is capable of rolling on the surface of the corrugated plate (1), and the follower rod (304) of the upper adaptive welding assembly is connected with the follower rod (304) of the lower adaptive welding assembly by a spring (303).
4. The corrugated web H-section steel welding forming apparatus according to claim 1, wherein the first welder (31) is a resistance welder, the first welder (31) contains a wheel electrode (33), the first welder (31) also contains a touch or wheel electrode (34), or the first welder (31) is two industrial welding robots arranged up and down, and the first welder (31) and the second welder (32) are identical in structure and mirror images of each other.
5. The corrugated web H-section steel welding forming apparatus according to claim 1, wherein the upper roll (20) and the lower roll (21) are identical in structure;
the calculation formula of the pitch circle diameter of the upper roller (20) is as follows: d=np/pi;
d is the pitch diameter of the upper roller (20), and the unit is mm; n is the number of circumferential wave troughs and has no unit; p is the wavelength of the corrugated plate (1) with the unit of mm; pi is the circumference ratio;
radius r of columnar crest arc of upper roller (20) 0 The radius r of the inner arc is 0.5 mm-3 mm smaller than that of the corrugated plate (1);
the radius of the columnar wave trough arc of the upper roller (20) is 3 mm-12 mm larger than that of the columnar wave crest arc of the upper roller (20).
6. A corrugated web H-section steel welding forming method, characterized in that the corrugated web H-section steel welding forming method adopts the corrugated web H-section steel welding forming device of claim 1, and the corrugated web H-section steel welding forming method comprises the following steps:
step 1, a horizontal steel coil is unfolded and flattened into a flat plate (5) through a third uncoiler (13), and the flat plate (5) is cold-formed into a corrugated plate (1) through an upper roller (20) and a lower roller (21); the two vertical steel coils are unfolded and flattened into a first wing plate (2) and a second wing plate (3) through a first uncoiler (11) and a second uncoiler (12) respectively;
and 2, welding the corrugated plate (1), the first wing plate (2) and the second wing plate (3) into corrugated web H-shaped steel (4) by a first welding machine (31) and a second welding machine (32).
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