CN115401288B - Welding manufacturing process of water drop type wind tower - Google Patents
Welding manufacturing process of water drop type wind tower Download PDFInfo
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- CN115401288B CN115401288B CN202211196184.4A CN202211196184A CN115401288B CN 115401288 B CN115401288 B CN 115401288B CN 202211196184 A CN202211196184 A CN 202211196184A CN 115401288 B CN115401288 B CN 115401288B
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- 238000003466 welding Methods 0.000 title claims abstract description 136
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 24
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000002787 reinforcement Effects 0.000 claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 26
- 238000005452 bending Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 238000005498 polishing Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 241000736911 Turritella communis Species 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc 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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention relates to a welding manufacturing process of a water drop type wind tower, which comprises the following specific steps: s1, respectively rolling a plurality of first arc segments and a plurality of second arc segments on a plate rolling machine; s2, grooves of 10-15 degrees are formed in the other side ends of the first arc section and the second arc section; s3, forming a first arc sheet body, a second arc sheet body and a third arc sheet body; s4, re-measuring the length of the sheet body and calculating the end part misalignment amount; s5, respectively spot-welding the support plate bodies between the two ends of the arc sheet bodies; s6, hoisting the first arc sheet body spot-welded with the first support plate body to the first roller tire frame; s7, obliquely hoisting a second arc sheet body of the second support plate body; s8, obliquely hoisting the third arc sheet body to the openings of the first arc sheet body and the second arc sheet body; s9, preliminary folding and positioning; s10, cutting and dismantling the support reinforcement in the water drop type wind tower. The invention has the following advantages: and the assembly welding precision is improved, and the welding stability and the welding quality are ensured.
Description
Technical Field
The invention relates to the field of water drop type wind towers, in particular to a welding manufacturing process of a water drop type wind tower.
Background
Wind power generation technology belongs to the field of new energy, wind power is more and more favored by people along with the occurrence of energy crisis, an offshore wind tower is a tower pole of wind power generation, and mainly plays a supporting role in a wind power generation group, and most of the offshore wind towers are of cylindrical structures at present, are formed by welding 3-5 cylinder sections through assembly during manufacturing, and each cylinder section is 2-4 m in length and 6-8 m in diameter.
Because the offshore environment is special, the traditional cylindrical wind tower needs to bear larger wind force effect, the stability of the whole wind generating set is affected to a certain extent, the water drop type wind tower has the effect of reducing wind resistance, and the overall stability of the wind generating set when gusts come is enhanced, however, the water drop type wind tower has the following technical difficulties in the manufacturing process because the cross section of the water drop type wind tower is of a non-traditional standard circular structure, but is of a water drop type structure consisting of a plurality of sections of circular arcs, and the water drop type wind tower is huge in size: 1. the welding of the water drop type wind tower comprises circumferential seam welding and longitudinal seam welding, in the welding process of the wind tower, the angle and the distance between a welding gun and a welding seam are required to be constant all the time in order to ensure the welding stability and the welding quality, and the angle and the distance between the welding gun and the circumferential seam cannot be ensured to be constant when the welding is carried out no matter the automatic welding or the manual welding due to the special-shaped structure of the cross section of the water drop type wind tower; 2. the steel plates are rolled into circular arc sections and then are subjected to assembly and welding, and as the circular arc sections are of non-closed structures, certain radian change occurs in the hoisting assembly process, the assembly difficulty is extremely high, the assembly precision is poor, and the forming quality of the water drop type wind tower cannot be guaranteed.
Disclosure of Invention
The invention aims to overcome the defects, and provides a welding manufacturing process of a water drop type wind tower, which improves the assembly welding precision and ensures the welding stability and the welding quality.
The aim of the invention is achieved by the following technical scheme: a welding manufacturing process of a water drop type wind tower specifically comprises the following steps:
s1, respectively coiling a plurality of first arc sections and a plurality of second arc sections on a plate bending machine, wherein the arc radians of the first arc sections and the second arc sections are 75 degrees; rolling a cylindrical barrel with the same diameter as the third arc section on a plate rolling machine, and cutting the cylindrical barrel in trisection to form a plurality of third arc sections, wherein the radian of each third arc section is 120 degrees;
s2, beveling is not carried out on one side end of the first circular arc section and one side end of the second circular arc section, 10-15 degrees of bevels are respectively formed on the other side end of the first circular arc section and the other side end of the second circular arc section, 10-15 degrees of bevels are respectively formed on the two ends of the third circular arc section, and polishing treatment is carried out on the bevels;
s3, placing the first arc segments, the second arc segments and the third arc segments on auxiliary adjusting tool equipment to sequentially perform axial assembly welding to form a first arc sheet body, a second arc sheet body and a third arc sheet body;
s4, measuring the lengths of the first arc sheet body, the second arc sheet body and the third arc sheet body, if the length difference exceeds 2 times of the tolerance allowed by the error margin, cutting and removing the excess part, measuring the length of the sheet body again, and calculating the end error margin;
s5, spot welding a first support plate body between two ends of the first arc sheet body, spot welding a second support plate body between two ends of the second arc sheet body, spot welding a third support plate body between two ends of the third arc sheet body, and enabling the lengths of the first support plate body and the second support plate body to be consistent; the welding method comprises the steps that before spot welding, a first bevel edge body with the angle of theta/2 is cut at one side end of a first support plate body and one side end of a second support plate body, a second bevel edge body with the angle of alpha/2 is cut at the other side end of the first support plate body and the other side end of the second support plate body, and a third bevel edge body with the angle of alpha/2 is cut at the two side ends of a third support plate body;
s6, hoisting a first arc sheet body which is spot-welded with a first support plate body onto a first roller tire frame, adjusting levelness of the first support plate body through a laser level meter, welding a vertical triangular support column on the first support plate body, determining the position of the vertical triangular support column on the first support plate body according to the longitudinal height value of the vertical triangular support column and the distance of one side end of the first support plate body in three-dimensional modeling before welding, marking the position, fixing the bottom vertical edge of the vertical triangular support column at the marking position of the first support plate body through spot welding, forming an included angle alpha between the hypotenuse of the vertical triangular support column and the bottom vertical edge of the vertical triangular support column, and cutting the top of the vertical triangular support column to form a support hypotenuse with an angle theta before welding;
s7, obliquely hoisting the second arc sheet body with the second support plate body to the position above the first arc sheet body by spot welding, gradually lowering the second arc sheet body until the first bevel edge body of the first support plate body corresponds to the first bevel edge body of the second support plate body, and stopping lowering after the end face of the second support plate body is tightly attached to the support bevel edge body;
s8, obliquely hoisting the third arc sheet body with the third support plate body to the openings of the first arc sheet body and the second arc sheet body in spot welding, wherein the oblique hoisting angle is alpha, so that the third bevel edge bodies at the two side ends of the third support plate body are in corresponding contact with the first support plate body and the second bevel edge body on the second support plate body in sequence;
s9, forming isosceles triangle-shaped support reinforcing bodies on the folded first support plate body, the second support plate body and the third support plate body in sequence through a spot welding fixing mode, and realizing preliminary folding and positioning of the first arc plate body, the second arc plate body and the third arc plate body, wherein a first longitudinal seam welding bead with a V-shaped groove is formed between the first arc plate body and the second arc plate body, and a second longitudinal seam welding bead with a V-shaped groove is formed between the first arc plate body and the third arc plate body and between the second arc plate body and the third arc plate body;
and S10, welding in three longitudinal seam welding beads in sequence in a submerged arc welding mode, so that the welding closure of the water-drop type wind tower is completed, and the support reinforcement in the water-drop type wind tower is cut and removed.
The invention further improves that: in the step S1, when the first arc section and the second arc section are rolled, firstly, the surface quality of the steel plate is checked, and if bubbles, cracks, interlayers, layering and foreign matters pressed into oxide skin appear on the surface of the steel plate, the foreign matters are polished; cutting the steel plate into a preset length, and cleaning cutting slag at the cutting edge through an electric mill; and finally, feeding the steel plate into a plate bending machine for bending, and monitoring the radians of the first arc section and the second arc section in real time through a control system of the plate bending machine and continuously bending until the final preset radian is obtained.
The invention further improves that: in step S3, the auxiliary adjustment tooling device includes a second roller tire frame and a supporting cylinder disposed on the second roller tire frame, an opening is disposed at an upper end of the supporting cylinder, and two ends of the supporting cylinder are respectively connected with a supporting plate.
The invention further improves that: the support cylinder is characterized in that the two ends of the support cylinder are respectively hinged with a support plate, one end of the support plate is arranged in the support cylinder, the other end of the support plate is arranged outside the support cylinder, a jack is arranged between one end of the support plate arranged in the support cylinder and the inner wall of the support cylinder, a first arc section, a second arc section and a third arc section are respectively arranged between the two support plates, and the two jacks synchronously stretch and retract to realize bearing of the arc sections with different radians and different lengths.
The invention further improves that: in step S3, two adjacent first arc segments or two adjacent second arc segments or two adjacent third arc segments are sequentially placed between two support plates of the support cylinder, two ends of the first arc segments or the second arc segments or the third arc segments are protruded out of the support plates, two ends of the first arc segments or the second arc segments or the third arc segments are fixed with the support plates through spot welding, two adjacent first arc segments or two adjacent second arc segments or two adjacent third arc segments are mutually close to form a circular seam, internal and external welding is performed at the circular seam, the first arc sheet body, the second arc sheet body and the third arc sheet body are sequentially spliced in an axial direction, and finally the first arc sheet body, the second arc sheet body, the third arc sheet body and the support plates are cut and separated.
The invention further improves that: the two jacks are arranged in axisymmetric mode with the center of the supporting cylinder body.
The invention further improves that: the position of the supporting plate close to the jack is provided with an infrared range finder.
The invention further improves that: in step S10, welding wires with phi of 4.0mm are selected for arc welding, the welding current is 650A, the welding voltage is 32V, and the welding speed is 500mm/min.
The invention further improves that: in the step A10, an automatic welding tool is adopted when three longitudinal seam welding passes are welded;
the invention further improves that: the automatic welding tool comprises a track moving along the extending direction of the longitudinal seam weld bead and a base arranged above the track, wherein a lifting platform is arranged above the base, and a manipulator capable of adjusting the positions at multiple angles is arranged above the lifting platform.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, a plurality of circular arc sections are axially spliced in sequence to form the circular arc sheet body, and then the first circular arc sheet body, the second circular arc sheet body and the third circular arc sheet body are folded to form a first longitudinal seam welding bead and two second longitudinal seam welding beads, so that the construction of the water drop type wind tower is realized through welding the longitudinal seam welding beads, and as the longitudinal seam welding beads are of regular linear structures, the constancy of angles and distances between the longitudinal seam welding beads and welding seams can be realized through an automatic welding tool, and the welding stability and the welding quality are ensured.
2. The first circular arc lamellar body, second circular arc lamellar body and third circular arc lamellar body are in hoist and mount, group to and welding process, owing to be non-enclosed construction by oneself, consequently, very easily appear the radian change to influence manufacturing efficiency and manufacturing accuracy, and this application is when folding first circular arc lamellar body, second circular arc lamellar body and third circular arc lamellar body, correspond first backup pad body, second backup pad body and third backup pad body in proper order and weld on first circular arc lamellar body, second circular arc lamellar body and third circular arc lamellar body, both play good support firm effect, avoid the circular arc lamellar body to take place the radian deformation again through the first hypotenuse body on each backup pad body, second hypotenuse body, the third hypotenuse body is mutually supported between the body, thereby guarantee the position group of a plurality of circular arcs lamellar bodies in folding process to the precision.
Drawings
Fig. 1 is a schematic structural diagram of a first arc segment and a second arc segment in the present invention.
Fig. 2 is a schematic diagram illustrating the fabrication of a third arc segment according to the present invention.
Fig. 3 is a schematic structural view of a first arc sheet, a second arc sheet and a third arc sheet in the present invention.
Fig. 4 is a schematic diagram of a folding structure of the first circular arc sheet, the second circular arc sheet and the third circular arc sheet in the present invention.
Fig. 5 is a schematic diagram showing the distribution of longitudinal seam weld beads after the first circular arc sheet body, the second circular arc sheet body and the third circular arc sheet body are folded.
Fig. 6 is a schematic structural diagram of an automatic welding tool in the present invention.
Fig. 7 is a schematic structural diagram of auxiliary adjustment tooling equipment in the present invention.
Fig. 8 is a schematic structural view of a water-drop type wind tower manufactured by the present invention.
Reference numerals in the drawings:
1-first arc segmentation, 2-second arc segmentation, 3-cylinder body, 4-third arc segmentation, 5-groove, 6-auxiliary adjustment tool equipment, 7-first arc sheet body, 8-second arc sheet body, 9-third arc sheet body, 10-first support plate body, 11-second support plate body, 12-third support plate body, 13-first oblique edge body, 14-second oblique edge body, 15-third oblique edge body, 16-first roller jig frame, 17-vertical triangular support column, 18-bottom vertical edge, 19-oblique edge, 20-support oblique edge body, 21-first longitudinal seam weld bead, 22-second longitudinal seam weld bead, 23-track, 24-base, 25-lifting platform and 26-manipulator;
61-second roller jig, 62-supporting cylinder, 63-opening, 64-supporting plate, 65-jack and 66-infrared range finder.
Detailed Description
The present invention will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are provided for the purpose of illustrating the present invention only and are not to be construed as limiting the scope of the present invention.
The welding manufacturing process of the water drop type wind tower comprises the following specific steps:
s1, respectively coiling a plurality of first arc sections 1 and a plurality of second arc sections 2 on a plate bending machine, wherein the arc radians of the first arc sections 1 and the second arc sections 2 are 75 degrees as shown in FIG. 1; as shown in fig. 2, a cylindrical body 3 with the same diameter as the third circular arc section 4 is rolled on a plate rolling machine, and a plurality of third circular arc sections 4 are formed after the cylindrical body 3 is cut in trisection, wherein the radian of the third circular arc section 4 is 120 degrees;
s2, one side ends of the first arc section 1 and the second arc section 2 are not beveled, grooves 5 of 10-15 degrees are formed in the other side ends of the first arc section 1 and the second arc section 2, grooves 5 of 10-15 degrees are formed in the two ends of the third arc section 4, and polishing treatment is conducted on the grooves 5;
s3, a plurality of first arc segments 1, a plurality of second arc segments 2 and a plurality of third arc segments 4 are placed on auxiliary adjustment tool equipment 6 to be axially assembled and welded in sequence, and as shown in FIG. 3, a first arc sheet 7, a second arc sheet 8 and a third arc sheet 4 are formed;
s4, measuring the lengths of the first arc sheet body 7, the second arc sheet body 8 and the third arc sheet body 4, if the length difference exceeds 2 times of the tolerance allowed by the error margin, cutting and removing the excess part, measuring the lengths of the sheet bodies again, and calculating the end error margin;
s5, as shown in FIG. 4, spot welding a first support plate body 10 between two ends of a first circular arc sheet body 7, spot welding a second support plate body 11 between two ends of a second circular arc sheet body 8, spot welding a third support plate body 12 between two ends of a third circular arc sheet body 9, and enabling the lengths of the first support plate body 10 and the second support plate body 11 to be consistent; a first bevel edge body 13 with a cutting angle of theta/2 is arranged at one side end of the first support plate body 10 and one side end of the second support plate body 11 before spot welding, a second bevel edge body 14 with a cutting angle of alpha/2 is arranged at the other side end of the first support plate body 10 and the other side end of the second support plate body 11, and a third bevel edge body 15 with a cutting angle of alpha/2 is arranged at the two side ends of the third support plate body 12;
s6, hoisting the first arc sheet body 7 spot-welded with the first support plate body 10 onto the first roller tire frame 16, adjusting the levelness of the first support plate body 10 through a laser level meter, welding a vertical triangular support column 17 on the first support plate body 10, before welding, determining the position of the vertical triangular support column 17 on the first support plate body 10 according to the longitudinal height value of the vertical triangular support column 17 in three-dimensional stereo modeling and the distance of one side end of the first support plate body 10, marking the position, fixing the bottom vertical edge 18 of the vertical triangular support column 17 at the marking position of the first support plate body 10 through spot welding, forming an included angle alpha between the hypotenuse 19 of the vertical triangular support column 17 and the bottom vertical edge 18, and forming a supporting hypotenuse 20 with an angle theta on the top of the vertical triangular support column 17 through cutting before welding;
s7, obliquely hoisting the second arc sheet body 8 with the second supporting plate body 11 to the position above the first arc sheet body 7 by spot welding, gradually lowering the second arc sheet body 8 until the first oblique edge body 13 of the first supporting plate body 10 corresponds to the first oblique edge body 13 of the second supporting plate body 11, and stopping lowering after the end face of the second supporting plate body 11 is tightly attached to the supporting oblique edge body 20;
s8, obliquely hoisting the third arc sheet body 9 with the third support plate body 12 to the openings of the first arc sheet body 7 and the second arc sheet body 8, wherein the oblique hoisting angle is alpha, so that the third bevel edge bodies 15 at the two side ends of the third support plate body 12 are in corresponding contact with the second bevel edge bodies 14 on the first support plate body 10 and the second support plate body 11 in sequence;
s9, as shown in fig. 5 and 6, forming isosceles triangle-shaped support reinforcing bodies by sequentially spot welding and fixing the folded first support plate body 10, the second support plate body 11 and the third support plate body 12, so as to realize preliminary folding and positioning of the first arc plate body 7, the second arc plate body 8 and the third arc plate body 9, forming a first longitudinal seam weld bead 21 with a V-shaped groove between the first arc plate body 7 and the second arc plate body 8, and forming a second longitudinal seam weld bead 22 with a V-shaped groove between the first arc plate body 7 and the third arc plate body 9 and between the second arc plate body 8 and the third arc plate body 9;
and S10, welding in three longitudinal seam welding beads in sequence by adopting a submerged arc welding mode, so that the welding closure of the water drop type wind tower is completed, and the support reinforcement in the water drop type wind tower is cut and removed, as shown in fig. 8.
In this application, if form single wind tower shell ring through the mode of group pair re-welding longitudinal joint with single first circular arc segmentation 1, single second circular arc segmentation 2, single third circular arc segmentation 3 earlier, so circulation, thereby form water droplet type wind tower with a plurality of wind tower shell rings through group pair re-welding circumferential weld (water droplet type), because two adjacent wind tower shell rings are when group pair, need dock circumferential weld (water droplet type), because the specificity of circumferential weld (water droplet type) structure, the group is big to the degree of difficulty, group is unable to guarantee to the precision, and when welding circumferential weld (water droplet type), can't guarantee the constancy of angle between welder and the longitudinal joint welding bead distance.
The invention firstly axially splices a plurality of arc segments in sequence to form the arc sheet body, then folds the first arc sheet body 7, the second arc sheet body 8 and the third arc sheet body 9 to form a first longitudinal seam weld bead 21 and two second longitudinal seam weld beads 22, and realizes the construction of the water drop type wind tower by welding the longitudinal seam weld beads.
The first circular arc lamellar body 7, second circular arc lamellar body 8 and third circular arc lamellar body 9 are in hoist and mount, group to and welding process, owing to be unclosed structure by oneself, consequently, the radian change appears very easily to influence manufacturing efficiency and manufacturing accuracy, and this application is when folding first circular arc lamellar body 7, second circular arc lamellar body 8 and third circular arc lamellar body 9, correspond first backup pad body 10 earlier, second backup pad body 11 and third backup pad body 12 in proper order and weld on first circular arc lamellar body 7, second circular arc lamellar body 8 and third circular arc lamellar body 9, both play good support firm effect, avoid the circular arc lamellar body to take place the radian deformation, through the first hypotenuse body 13 on each backup pad body again, second hypotenuse body 14, the mutual cooperation between the third hypotenuse body 15, thereby guarantee the position group to the precision of a plurality of circular arc lamellar bodies in folding process.
In this application, when hoisting second circular arc lamellar body 8 to first circular arc lamellar body 7 top, perpendicular triangle support column 17 plays certain positioning action, guarantees the angle precision between first circular arc lamellar body 7 and the second circular arc lamellar body 8, plays certain support enhancement effect to a plurality of backup pad bodies again simultaneously, guarantees the stability of folding.
Further, in step S1, when the first arc segment 1 and the second arc segment 2 are rolled, the surface quality of the steel plate is checked, and if bubbles, cracks, interlayers, layering and foreign matters pressed into oxide scale appear on the surface of the steel plate, polishing the foreign matters; cutting the steel plate into a preset length, and cleaning cutting slag at the cutting edge through an electric mill; and finally, feeding the steel plate into a plate bending machine for bending, and monitoring the radians of the first arc segment 1 and the second arc segment 2 in real time through a control system of the plate bending machine and continuously bending until the final preset radian is obtained.
Further, in step S3, as shown in fig. 7, the auxiliary adjustment tooling device 6 includes a second roller frame 61 and a supporting cylinder 62 disposed on the second roller frame 61, wherein an opening 63 is formed at an upper end of the supporting cylinder 62, and supporting plates 64 are respectively connected to two ends of the supporting cylinder 62.
Further, the two ends of the supporting cylinder 62 are respectively hinged with a supporting plate 64, one end of the supporting plate 64 is arranged in the supporting cylinder 62, the other end of the supporting plate 64 is arranged outside the supporting cylinder 62, a jack 65 is arranged between one end of the supporting plate 64 arranged in the supporting cylinder 62 and the inner wall of the supporting cylinder 62, the first arc segment 1, the second arc segment 2 and the third arc segment 4 are respectively arranged between the two supporting plates 64, and the two jacks 65 are synchronously telescopic to realize bearing of the arc segments with different radians and different lengths.
Further, in step S3, two adjacent first arc segments 1 or two adjacent second arc segments 2 or two adjacent third arc segments 4 are sequentially placed between two support plates 64 of the support cylinder 62, two ends of each first arc segment 1 or each second arc segment 2 or each third arc segment 4 are protruded out of the support plate 64, two ends of each first arc segment 1 or each second arc segment 2 or each third arc segment 4 are fixed with the support plate 64 through spot welding, two adjacent first arc segments 1 or two adjacent second arc segments 2 or two adjacent third arc segments 4 are mutually close to form a circular seam, internal and external welding is performed at the circular seam, axial splicing is sequentially performed to form a first arc sheet 7, a second arc sheet 8 and a third arc sheet 9, and finally the first arc sheet 7, the second arc sheet 8 and the third arc sheet 9 are cut and separated from the support plate 64.
In this application, auxiliary adjustment frock equipment 6 is used for circular seam (circular arc) butt joint between two adjacent circular arc segmentation, because the circular arc segmentation is non-closed form structure, consequently takes place the side end easily and warp and arouse the radian change in the welding process, auxiliary adjustment frock equipment 6 plays certain locate action to each circular arc segmentation, and circular arc segmentation can realize circumference rotation along with the rotation of second gyro wheel bed-jig moreover, is convenient for realize the welding of circular seam.
Further, the two jacks 65 are axially symmetrically arranged at the center of the supporting cylinder 62, and the included angle between the two supporting plates 64 is adjusted by arranging the jacks 65, so that the positioning of the arc sections with different arc lengths is satisfied.
Further, the support plate 64 has an infrared range finder 66 at a position close to the jack 65.
Further, in step S10, welding wire phi 4.0mm is selected for arc welding, welding current 650A, welding voltage 32V and welding speed 500mm/min.
Further, in the step a10, an automatic welding tool is adopted when welding three longitudinal seam weld beads; the automatic welding tool comprises a track 23 moving along the extending direction of the longitudinal seam weld bead and a base 24 arranged above the track 23, wherein a lifting platform 25 is arranged above the base 24, and a manipulator 26 capable of adjusting the position at multiple angles is arranged above the lifting platform 25.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The welding manufacturing process of the water drop type wind tower is characterized by comprising the following specific steps of:
s1, respectively coiling a plurality of first arc sections (1) and a plurality of second arc sections (2) on a plate bending machine, wherein the arc radians of the first arc sections (1) and the second arc sections (2) are 75 degrees; rolling a cylindrical barrel body (3) with the diameter consistent with that of the third circular arc sections (4) on a plate rolling machine, and forming a plurality of third circular arc sections (4) after trisection cutting of the cylindrical barrel body (3), wherein the radian of the third circular arc sections (4) is 120 degrees;
s2, one side ends of the first arc section (1) and the second arc section (2) are not beveled, grooves (5) of 10-15 degrees are formed in the other side ends of the first arc section (1) and the second arc section (2), grooves (5) of 10-15 degrees are formed in the two ends of the third arc section (4), and polishing treatment is conducted on the grooves (5);
s3, a plurality of first arc segments (1), a plurality of second arc segments (2) and a plurality of third arc segments (4) are placed on auxiliary adjusting tool equipment (6) to be axially assembled and welded in sequence to form a first arc sheet body (7), a second arc sheet body (8) and a third arc sheet body (9);
s4, measuring the lengths of the first circular arc sheet body (7), the second circular arc sheet body (8) and the third circular arc sheet body (9), if the difference value of the lengths exceeds 2 times of the tolerance allowed by the error margin, cutting and removing the excess part, measuring the lengths of the sheet bodies again, and calculating the end error margin;
s5, spot welding a first support plate body (10) between two ends of a first circular arc sheet body (7), spot welding a second support plate body (11) between two ends of a second circular arc sheet body (8), spot welding a third support plate body (12) between two ends of a third circular arc sheet body (9), wherein the lengths of the first support plate body (10) and the second support plate body (11) are consistent; a first bevel edge body (13) with a cutting angle of theta/2 is arranged at one side end of a first support plate body (10) and one side end of a second support plate body (11) before spot welding, a second bevel edge body (14) with a cutting angle of alpha/2 is arranged at the other side end of the first support plate body (10) and the other side end of the second support plate body (11), and a third bevel edge body (15) with a cutting angle of alpha/2 is arranged at the two side ends of a third support plate body (12);
s6, hoisting a first arc sheet body (7) which is spot-welded with a first support plate body (10) onto a first roller tire frame (16), adjusting the levelness of the first support plate body (10) through a laser level meter, welding a vertical triangular support column (17) on the first support plate body (10), before welding, determining the position of the vertical triangular support column (17) on the first support plate body (10) and marking the position according to the longitudinal height value of the vertical triangular support column (17) and the distance of one side end of the first support plate body (10) in three-dimensional modeling, wherein the bottom vertical edge (18) of the vertical triangular support column (17) is fixed at the marking position of the first support plate body (10) through spot welding, the included angle between the inclined edge (19) of the vertical triangular support column (17) and the bottom vertical edge (18) is alpha, and forming a support inclined edge (20) with an angle theta by cutting before welding;
s7, obliquely hoisting the second arc sheet body (8) with the second support plate body (11) to the position above the first arc sheet body (7), gradually lowering the second arc sheet body (8) until the first oblique edge body (13) of the first support plate body (10) corresponds to the first oblique edge body (13) of the second support plate body (11), and stopping lowering after the end face of the second support plate body (11) is tightly attached to the support oblique edge body (20);
s8, obliquely hoisting and spot-welding a third arc sheet body (9) of a third support plate body (12) to openings of the first arc sheet body (7) and the second arc sheet body (8), wherein the obliquely hoisting angle is alpha, so that third bevel edge bodies (15) at two side ends of the third support plate body (12) are in corresponding contact with the first support plate body (10) and the second bevel edge bodies (14) on the second support plate body (11) in sequence;
s9, forming isosceles triangle-shaped support reinforcing bodies on the folded first support plate body (10), the second support plate body (11) and the third support plate body (12) in sequence through a spot welding fixing mode, so as to realize preliminary folding and positioning of the first arc plate body (7), the second arc plate body (8) and the third arc plate body (9), forming a first longitudinal seam weld bead (21) with a V-shaped groove between the first arc plate body (7) and the second arc plate body (8), and forming a second longitudinal seam weld bead (22) with a V-shaped groove between the first arc plate body (7) and the third arc plate body (9) and between the second arc plate body (8) and the third arc plate body (9);
and S10, welding in three longitudinal seam welding beads in sequence in a submerged arc welding mode, so that the welding closure of the water-drop type wind tower is completed, and the support reinforcement in the water-drop type wind tower is cut and removed.
2. The welding process of the water drop type wind tower according to claim 1, wherein in the step S1, when the first arc segment (1) and the second arc segment (2) are rolled, the surface quality of the steel plate is checked, and if bubbles, cracks, interlayers, layering and foreign matters pressed into oxide skin appear on the surface of the steel plate, the foreign matters are polished; cutting the steel plate into a preset length, and cleaning cutting slag at the cutting edge through an electric mill; and finally, feeding the steel plate into a plate bending machine for bending, and monitoring the radians of the first arc segment (1) and the second arc segment (2) in real time through a control system of the plate bending machine and continuously bending until the final preset radian is obtained.
3. The welding manufacturing process of the water drop type wind tower according to claim 2, wherein in the step S3, the auxiliary adjusting tool device (6) comprises a second roller jig (61) and a supporting cylinder (62) arranged on the second roller jig (61), an opening (63) is formed at the upper end of the supporting cylinder (62), and supporting plates (64) are respectively connected to two ends of the supporting cylinder (62).
4. A welding manufacturing process of a water drop type wind tower according to claim 3, wherein two ends of the supporting cylinder body (62) are respectively hinged with supporting plates (64), one end of each supporting plate (64) is arranged in the supporting cylinder body (62), the other end of each supporting plate (64) is arranged outside the supporting cylinder body (62), a jack (65) is arranged between one end of each supporting plate (64) arranged in the supporting cylinder body (62) and the inner wall of the supporting cylinder body (62), the first circular arc section (1), the second circular arc section (2) and the third circular arc section (4) are respectively arranged between the two supporting plates (64), and the two jacks (65) are synchronously telescopic to realize bearing of circular arc sections with different radians and different lengths.
5. The welding manufacturing process of the water drop type wind tower according to claim 4, wherein in the step S3, two adjacent first arc segments (1) or two adjacent second arc segments (2) or two adjacent third arc segments (4) are sequentially placed between two support plates (64) of the support cylinder (62), two ends of the first arc segments (1) or the second arc segments (2) or the third arc segments (4) are protruded from the support plates (64), two ends of the first arc segments (1) or the second arc segments (2) or the third arc segments (4) are fixed with the support plates (64) through spot welding, two adjacent first arc segments (1) or two adjacent second arc segments (2) or two adjacent third arc segments (4) are mutually close to form a circular seam, internal and external welding is sequentially carried out at the circular seam, the first arc segments (7), the second arc segments (8) and the third arc segments (9) are formed, and finally the first arc segments (7), the second arc segments (8) and the third arc segments (9) are separated from the support plates (64).
6. The welding manufacturing process of the water drop type wind tower according to claim 5, wherein the two jacks (65) are arranged in an axisymmetric manner with respect to the center of the supporting cylinder (62).
7. The welding manufacturing process of the water drop type wind tower according to claim 6, wherein the supporting plate (64) is provided with an infrared range finder (66) at a position close to the jack (65).
8. The welding process for a water-drop type wind tower according to claim 7, wherein in the step S10, welding wires with a diameter of 4.0mm, a welding current of 650A, a welding voltage of 32V and a welding speed of 500mm/min are selected for arc welding.
9. The welding process for a water drop type wind tower according to claim 8, wherein in the step S10, an automatic welding tool is used when welding three longitudinal seam weld beads.
10. The welding manufacturing process of the water drop type wind tower according to claim 9, wherein the automatic welding tool comprises a track (23) moving along the extending direction of a longitudinal seam welding bead and a base (24) arranged above the track (23), a lifting platform (25) is arranged above the base (24), and a manipulator (26) capable of adjusting the positions of multiple angles is arranged above the lifting platform (25).
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| CN205651005U (en) * | 2016-05-27 | 2016-10-19 | 中国葛洲坝集团机电建设有限公司 | Device is assembled to wind power tower cylinder flange festival |
| CN108340119A (en) * | 2018-05-03 | 2018-07-31 | 苏州天顺新能源科技有限公司 | A kind of tower section door frame welding tooling |
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| CN217479018U (en) * | 2022-06-25 | 2022-09-23 | 南通泰胜蓝岛海洋工程有限公司 | Turning device for building large-scale offshore special-shaped wind power tower |
| CN217475180U (en) * | 2022-06-06 | 2022-09-23 | 南通泰胜蓝岛海洋工程有限公司 | Assembly equipment for water drop type wind tower sections |
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2022
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205651005U (en) * | 2016-05-27 | 2016-10-19 | 中国葛洲坝集团机电建设有限公司 | Device is assembled to wind power tower cylinder flange festival |
| CN108340119A (en) * | 2018-05-03 | 2018-07-31 | 苏州天顺新能源科技有限公司 | A kind of tower section door frame welding tooling |
| CN113231721A (en) * | 2021-07-09 | 2021-08-10 | 南通泰胜蓝岛海洋工程有限公司 | Non-back-gouging welding process for fan tower shell ring |
| CN217475180U (en) * | 2022-06-06 | 2022-09-23 | 南通泰胜蓝岛海洋工程有限公司 | Assembly equipment for water drop type wind tower sections |
| CN217479018U (en) * | 2022-06-25 | 2022-09-23 | 南通泰胜蓝岛海洋工程有限公司 | Turning device for building large-scale offshore special-shaped wind power tower |
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