CN113601194B - Manufacturing production line and construction method of large-section I-shaped steel beam unit - Google Patents
Manufacturing production line and construction method of large-section I-shaped steel beam unit Download PDFInfo
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- CN113601194B CN113601194B CN202111055932.2A CN202111055932A CN113601194B CN 113601194 B CN113601194 B CN 113601194B CN 202111055932 A CN202111055932 A CN 202111055932A CN 113601194 B CN113601194 B CN 113601194B
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Abstract
The invention provides a large-section I-shaped steel beam unit manufacturing production line and a construction method, wherein the large-section I-shaped steel beam unit manufacturing production line comprises an assembling production line, a welding production line and a correcting production line; the assembling production line comprises a transmission roller production line, a 180-degree movable turnover machine, an assembling machine and a movable steel plate hoisting machine, wherein the assembling machine is connected with the transmission roller production line and arranged above the transmission roller production line; the welding assembly line comprises a transmission roller assembly line, a 180-degree movable turnover machine, a 45-degree turnover machine and a cantilever type automatic submerged arc welding machine, wherein the 45-degree turnover machine is arranged on two sides of the transmission roller assembly line, the 180-degree movable turnover machine and the transmission roller assembly line are arranged in an orthogonal mode, and the cantilever type automatic submerged arc welding machine is arranged on the outer side of the 45-degree turnover machine; the large-section I-shaped steel beam unit manufacturing line has the functions of automatic positioning, automatic assembly, automatic welding, automatic correction and the like.
Description
Technical Field
The invention relates to the technical field of steel beam manufacturing construction, in particular to a manufacturing assembly line and a construction method of a large-section I-shaped steel beam unit.
Background
With the rapid development of economy in China, the transportation industry also obtains wide development space, the construction range and the investment cost of bridge projects are further enlarged, and bridge construction materials are changed from traditional concrete bridges to steel structure bridges. In order to widely popularize steel structure bridges, the transportation department issues: the guidance comments of the department of transportation on the propulsion of steel structure bridges on highways (the issue of public ways of traffic [2016] 115) make steel structure bridges one of the main bridge types for future bridge construction, and the steel structure bridges are the bridge types most suitable for large-scale industrial construction. The I-shaped steel plate composite beam has the advantages of simple section, convenience in manufacturing and installation, high bearing capacity and the like, and is widely applied to the construction of expressway bridges, urban viaducts and large bridge approach bridges in recent years.
In the manufacturing process of the I-shaped steel plate composite beam, the following technical problems of low mechanization degree, large personnel investment, low processing precision of components, poor welding quality, long manufacturing period and the like generally exist in the processing and manufacturing of a steel structure, and the I-shaped steel beam with a large section also has the following technical problems: (1) the automatic assembly and welding problem of transition of different plate thicknesses, (2) the automatic assembly precision and stability problem of the ultrahigh web, (3) the quality stability problem of automatic submerged arc welding. Therefore, how to solve the problems existing in the process of processing and manufacturing the I-shaped steel beam, the manufacturing precision of the I-shaped steel beam is improved, and the construction quality of the bridge is directly related.
Disclosure of Invention
The invention aims to provide a large-section I-shaped steel beam unit manufacturing production line and a construction method, which can improve the manufacturing precision of I-shaped steel beams and increase the bridge construction quality.
In order to solve the technical problem, the invention provides a construction method of a large-section I-shaped steel beam unit manufacturing production line, which comprises the following steps:
1) Assembling a production line arrangement: the transmission roller units are arranged in a spliced manner to form a transmission roller assembly line in the assembly line, the assembly machine and the 180-degree movable turnover machine are erected and installed on the transmission roller assembly line, then sliding rails are installed on two sides of the transmission roller assembly line, and the turnover hanging frames are erected and installed on the sliding rails to form a movable steel plate hoisting machine, so that the assembly line is arranged;
2) And (3) arranging a welding production line: the welding section conveying roller is lengthened, connected with a driving roller unit in an assembly line to form a driving roller assembly line in the welding assembly line, a 45-degree turnover machine is installed at notches on two sides of the welding section conveying roller, and a cantilever type automatic submerged arc welding machine is arranged on the outer side of the 45-degree turnover machine to complete arrangement of the welding assembly line;
3) Arranging a correction assembly line: lengthening a transmission roller unit, connecting the transmission roller unit with a welding section transmission roller in a welding assembly line to form a transmission roller assembly line in a correction assembly line, and installing hydraulic straightening machines on two sides of the transmission roller assembly line to finish the arrangement of the correction assembly line;
4) Pretreatment and processing of steel plates: processing a steel plate;
5) Assembling the I-shaped steel beam units: firstly, hoisting a processed steel plate to a transmission roller assembly line in an assembly line by using a movable steel plate hoisting machine, positioning a lower wing plate on an I-shaped rod assembly machine, then positioning a web plate, and then turning over an assembled T-shaped assembly by using a 180-degree movable turnover machine and positioning the T-shaped assembly to the lower wing plate;
6) Welding an I-shaped steel beam unit: conveying the assembled I-shaped steel beam unit to a welding production line, and performing welding line operation on the I-shaped steel beam unit by using a 45-degree tilter;
7) Straightening a wing plate of the I-shaped steel beam unit: and (3) turning the welded I-shaped steel beam unit by 90 degrees by using a 180-degree moving and turning machine, conveying the I-shaped steel beam unit to a correction production line, and turning the I-shaped steel beam unit by 180 degrees by using the 180-degree moving and turning machine.
8) Assembling and welding the reinforced ribs: and (3) arranging reinforcing ribs on the aligned I-shaped steel beam unit web, welding two sides simultaneously during welding, controlling welding current and speed, and finishing the manufacture of the large-section I-shaped steel beam unit.
The invention has the following characteristics and beneficial effects:
1. compared with the prior art, the I-shaped steel beam unit manufacturing assembly line adopted in the invention has the characteristics of digitalization, intellectualization, automation, high adaptability, high stability and high safety, the production efficiency and the manufacturing quality are greatly improved, the main structure realizes the automation of positioning, assembling, welding and correcting, and the technical benefit advantage is obvious.
2. The combined 180-degree movable turnover machine adopted by the invention has the advantages of reasonable structure, simple operation, capability of realizing 90-degree and 180-degree nondestructive turnover of the I-shaped steel beam unit, flexibility, maneuverability, great improvement on the operation efficiency and obvious technical benefit advantage.
3. The 45-degree turnover machine and the welding section conveying roller are perfectly matched, so that the transmission operation and the welding operation are not influenced mutually, and meanwhile, the 45-degree turnover machine is matched with a cantilever type automatic submerged arc welding machine to realize automatic turnover welding.
4. The driving roller unit adopted by the invention is provided with the balance adjusting device, so that the problems of uneven field and the like are well solved, and the smoothness of the whole driving roller assembly line is ensured.
Drawings
FIG. 1 is a schematic layout of a large section I-beam unit manufacturing line;
FIG. 2 is a construction flow chart of a manufacturing line of a large-section I-beam unit;
FIG. 3 is a perspective view of the driving roller unit;
FIG. 4 is a schematic diagram of an assembly pipeline;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a schematic diagram of a mobile steel plate hoisting machine;
FIG. 7 is a side view of the moving steel plate hoist;
FIG. 8 is a perspective view of a welding segment transfer roll;
FIG. 9 is a schematic layout of a 45 ° tipper;
FIG. 10 is a schematic illustration of a 45 ° tipper tipping operation;
FIG. 11 is a schematic view of a 90 ° mobile upender;
FIG. 12 is a schematic layout of a 90 ° mobile upender;
figure 13 is a schematic view of the 180 turn-over step of the large section i-section steel beam unit.
Wherein: 1-transmission roller assembly line; 2-180 degree mobile turnover machine; 3-I-shaped steel beam unit; 4-assembling machine; 5-45 degree turning machine; 6-cantilever type automatic submerged arc welding machine; 7-hydraulic straightening machine; 8-longitudinal beam; 9-a roller; 10-a support leg; 11-balance adjustment means; 12-a recess; 13-electric hoist; 14-main beam; 15-the stent; 16-no-injury clamp; 17-slide rail; 18-rail clamping device; 19-ground; 20-L-shaped roll-over stand; 21-hinge bolt; 22-hydraulic base; 23-welding section transfer roller; 24-moving steel plate hoisting machine; 25-driving roller unit; 26-90 degree mobile tilter; 27-a torsion machine; 28-rotation axis; 29-flip arm two; 30-turning over the arm one; 31-transverse traveling mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships that are based on those shown in the drawings, which are merely for convenience in describing the present disclosure and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus the terms above should not be construed as limiting the present disclosure.
It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.
The technical solution of the present invention is further explained with reference to fig. 1 to 13.
The invention provides a large-section I-shaped steel beam unit manufacturing assembly line which comprises an assembling assembly line, a welding assembly line and a correcting assembly line; the assembling production line comprises a transmission roller production line 1, a 180-degree mobile tilter 2, an assembling machine 4 and a mobile steel plate hoisting machine 24 in the assembling production line, wherein the assembling machine 4 is connected with the transmission roller production line 1 in the assembling production line and is arranged above the transmission roller production line 1 in the assembling production line, the mobile steel plate hoisting machine 24 is arranged above the transmission roller production line 1 in the assembling production line, and the 180-degree mobile tilter 2 in the assembling production line is arranged orthogonally to the transmission roller production line 1; the welding assembly line comprises a transmission roller assembly line 1, a 180-degree movable turnover machine 2, a 45-degree turnover machine 5 and a cantilever type automatic submerged arc welding machine 6 in the welding assembly line, wherein the 45-degree turnover machine 5 is arranged on two sides of the transmission roller assembly line 1 in the welding assembly line, the 180-degree movable turnover machine 2 in the welding assembly line is orthogonally arranged with the transmission roller assembly line 1, and the cantilever type automatic submerged arc welding machine 6 is arranged on the outer side of the 45-degree turnover machine 5; the correcting assembly line comprises a driving roller assembly line 1, a 180-degree movable turnover machine 2 and a hydraulic correcting machine 7 in the correcting assembly line, wherein the 180-degree movable turnover machine 2 in the correcting assembly line is orthogonally arranged with the driving roller assembly line 1, and the hydraulic correcting machine 7 is arranged on two sides of the driving roller assembly line 1 in the correcting assembly line.
Wherein, the assembly line, the welding assembly line and the drive roller assembly line 1 in the correction assembly line jointly form a complete drive roller assembly line 1.
The transmission roller assembly line 1 is composed of transmission roller units 25 and welding section transmission rollers 23, the transmission roller units 25 are arranged at intervals, each transmission roller unit 25 comprises a longitudinal beam 8, a rolling shaft 9, a support leg 10 and a balance adjusting device 11, the support leg 10 is arranged below the longitudinal beam 8, the balance adjusting device 11 is arranged in the middle of the support leg 10, and the rolling shaft 9 is arranged between the longitudinal beams 8; the welding section conveying roller 23 comprises longitudinal beams 8, rolling shafts 9, supporting legs 10, balance adjusting devices 11 and notches 12, the supporting legs 10 are arranged below the longitudinal beams 8, the balance adjusting devices 11 are arranged in the middle of the supporting legs 10, the rolling shafts 9 are arranged between the longitudinal beams 8, and the notches 12 are asymmetrically arranged on the longitudinal beams 8 on two sides.
Specifically, the driving roller units 25 are arranged at intervals, and 180-degree movable tilters 2 can be inserted into the intervals, at least two longitudinal beams 8 are arranged and located on two sides of the rolling shaft 9 respectively, the rolling shaft 9 can rotate relative to the longitudinal beams 8, and the I-shaped steel beam units 3 are conveyed in the rotating process of the rolling shaft 9; in the transportation process, because the part of the field has the condition of not being stable enough, a balance adjusting device 11 is arranged in the middle of the supporting legs 10 and used for adaptively adjusting the height of the supporting legs 10, and when the field is not flat, an operator changes the height of each supporting leg 10 through the balance adjusting device 11 so as to ensure that the longitudinal beams 8 on the upper parts of the supporting legs 10 can maintain a stable state.
In addition, the installation positions of the longitudinal beam 8, the roller 9, the support leg 10 and the balance adjusting device 11 in the welding section conveying roller 23 are the same as those of the driving roller unit 25, and the notch 12 is asymmetrically arranged, so that after the 45-degree turnover machine 5 is installed in the notch 12, the 45-degree turnover machines 5 on two sides cannot interfere, and the use stability of the 45-degree turnover machine 5 is maintained.
Remove steel sheet hoisting machine 24 constitute by two upset gallows at least, the upset gallows includes electric block 13, girder 14, support 15, does not have and hinders clamp 16, slide rail 17 and clamping rail ware 18, slide rail 17 sets up on the ground 19 of 1 both sides of driving roller assembly line, support 15 bottom is equipped with clamping rail ware 18, sets up on slide rail 17, support 15 top is equipped with girder 14, be equipped with two at least electric block 13 on the girder 14, electric block 13 passes through the rope and connects and does not hinder clamp 16.
Specifically, the support 15 moves along the sliding rail 17 through the rail clamping device 18 to finish the action of hoisting and conveying the steel plate to the transmission roller assembly line 1, in the hoisting and conveying process, the outer side of the steel plate is clamped through the damage-free clamp 16 to be fixed, the steel plate is subjected to lifting control through pulling or loosening a rope, the steel plate is driven to be lifted, hoisted and lowered in the conveying process through matching with the movement of the support 15, and the electric hoist 13 can move relative to the main beam 14 to adjust the distance between the electric hoists 13.
The 45-degree turnover machine 5 is composed of an L-shaped turnover frame 20 and a hydraulic base 22, the L-shaped turnover frame 20 is connected with the hydraulic base 22 through a hinge bolt 21, and when the L-shaped turnover frame 20 rotates relative to the hydraulic base 22, the L-shaped turnover frame 20 rotates along the axis of the hinge bolt 21.
The 180-degree movable turnover machine 2 is formed by at least matching and turning two 90-degree movable turnover machines 26, each 90-degree movable turnover machine 26 comprises a first turnover arm 30, a second turnover arm 29, a rotating shaft 28, a twisting machine 27 and a transverse traveling mechanism 31, each first turnover arm 30 and each second turnover arm 29 form a 90-degree included angle, the length is H, the thickness is delta, the height of the large-section I-shaped steel beam unit 3 is recorded as a, the width is recorded as H, a + delta is more than H and less than a +2 delta, the first turnover arm 30 and the second turnover arms 29 are connected into a whole through the rotating shaft 28, the twisting machines 27 are installed at two ends of the rotating shaft 28, the transverse traveling mechanisms 31 are arranged at the bottoms of the twisting machines 27, and the transverse traveling mechanisms 31 are orthogonal to the transmission roller assembly line 1 and can be arranged at intervals of the transmission roller units 25.
Specifically, when the 180-degree mobile tilter 2 needs to drive the i-beam unit 3 to be tilted, the twister 27 drives the rotating shaft 28 to rotate, and then drives the first tilting arm 30 and the second tilting arm 29 to rotate through the rotating shaft 28, so that the second tilting arm 29 in the vertical state rotates to the horizontal state, the first tilting arm 30 in the horizontal state rotates to the vertical state, and then the i-beam unit 3 between the second tilting arm 29 and the first tilting arm 30 is driven to rotate by 90 °.
The large-section I-shaped steel beam unit 3 is turned over for 180 degrees through the following scheme: inserting a first 90-degree movable turnover machine 26 at one side of the large-section steel I-beam unit 3, starting the first 90-degree movable turnover machine to turn over for 90 degrees, then moving the first 90-degree movable turnover machine 26 out in the opposite direction, then inserting a second 90-degree movable turnover machine 26 at one side of the large-section steel I-beam unit 3 after turning over for 90 degrees, moving the second 90-degree movable turnover machine 26 for a distance of h +2 delta + a, starting the second 90-degree movable turnover machine 26 to turn over for 90 degrees, likewise moving the second 90-degree movable turnover machine 26 out in the opposite direction, and completing the 180-degree turning of the large-section steel I-beam unit 3.
Specifically, due to the orthogonal arrangement of the transverse travelling mechanism 31 and the transmission roller assembly line 1, the 180-degree movable turnover machine 2 at the interval of the transmission roller unit 25 can move along the interval position, and the moving direction of the 180-degree movable turnover machine 2 is perpendicular to the conveying direction of the transmission roller assembly line 1.
The invention also provides a construction method of the large-section I-shaped steel beam unit manufacturing production line, which comprises the following steps:
1) Assembling a production line arrangement: the method comprises the following steps that a driving roller unit 25 is spliced and arranged according to the assembly length requirement of an I-shaped steel beam unit 3 to form a driving roller assembly line 1 in an assembly line, an assembly machine 4 and a 180-degree movable turnover machine 2 are erected and installed at a proper position of the driving roller assembly line 1, a main transmission part adopts a transmission mode that a front conveying roller and a rear conveying roller of a motor drive roller pass through a chain wheel and chain pair, then sliding rails 17 are installed on two sides of the driving roller assembly line 1, and a turnover hanging frame is erected and installed on the sliding rails 17 to form a movable steel plate hoisting machine 24, so that the assembly line is arranged;
2) And (3) arranging a welding production line: the welding section conveying roller 23 is lengthened, connected and assembled with a driving roller unit 25 in the assembly line to form a driving roller assembly line 1 in the welding assembly line, 45-degree tilters 5 are installed at notches 12 on two sides of the welding section conveying roller 23, cantilever type automatic submerged arc welding machines 6 are arranged on the outer sides of the 45-degree tilters 5, and 180-degree movable tilters 2 can be arranged in advance or the 180-degree movable tilters 2 can be moved from other sections of assembly lines according to operation requirements to complete arrangement of the welding assembly line;
3) Arranging a correction assembly line: the transmission roller unit 25 is lengthened and connected with a welding section transmission roller 23 in the welding production line to form a transmission roller production line 1 in the correction production line, hydraulic correction machines 7 are arranged at proper positions on two sides of the transmission roller production line 1, and a 180-degree movable turnover machine 2 can be arranged in advance or the 180-degree movable turnover machine 2 can be moved from other sections of production lines according to the operation requirement to complete the arrangement of the correction production line;
4) Pretreatment and processing of steel plates: processing a steel plate, adopting a numerical control cutting machine to perform fine cutting blanking according to the specific shape, size and thickness of the part of the I-shaped steel beam unit 3, utilizing a chamfering machine to polish and finish a notch, and adopting an edge planer and an edge milling machine to process a welded edge to be processed or a plate with high precision requirement;
5) Assembling the I-shaped steel beam units: firstly, hoisting a processed steel plate to a transmission roller assembly line 1 in an assembly line by using a movable steel plate hoisting machine 24, positioning a lower wing plate on an I-shaped rod assembly machine, then positioning a web plate, carrying out automatic assembly and tack welding, then turning over an assembled T-shaped assembly by using a 180-degree movable turnover machine 2, positioning the T-shaped assembly to the lower wing plate, and carrying out automatic assembly and tack welding;
6) Welding the I-shaped steel beam unit: conveying the assembled I-shaped steel beam unit 3 to a welding assembly line, starting a 45-degree turnover machine 5 at a notch 12 on one side of a welding section conveying roller 23, turning over the I-shaped steel beam unit 3 by 45 degrees, automatically welding a seam on one side by using a cantilever type automatic submerged arc welding machine 6, detecting the qualified seam by using ultrasonic waves, starting the 45-degree turnover machine 5 to rotate to lay the I-shaped steel beam unit 3 flat to a transmission roller assembly line 1, turning over the I-shaped steel beam unit 3 by using the 45-degree turnover machine 5 on the other side by 45 degrees, automatically welding a seam on the other side by using the cantilever type automatic submerged arc welding machine 6, detecting the qualified seam by using the ultrasonic waves, starting the 45-degree turnover machine 5 to rotate to lay the I-shaped steel beam unit 3 flat to the transmission roller assembly line 1, then turning over the I-shaped steel beam unit 3 by using a 180-degree movable turnover machine 2, and repeating the seam welding operation until the welding operation on four positions is completed;
7) Straightening a flange plate of the I-shaped steel beam unit: the welded I-shaped steel beam unit 3 is turned by 90 degrees by using the 180-degree movable turnover machine 2 and is conveyed to a correction assembly line, a downward wing plate is mechanically corrected by using the hydraulic correcting machine 7, and then the I-shaped steel beam unit 3 is turned by 180 degrees by using the 180-degree movable turnover machine 2 and is automatically and mechanically corrected.
8) Assembling and welding the reinforced rib: and (3) arranging the reinforcing ribs on the corrected web plate of the I-shaped steel beam unit 3 along the lines, ensuring the verticality of the installation of the reinforcing ribs, welding the two sides simultaneously during welding, controlling the welding current and speed, reducing the welding deformation and finishing the manufacture of the large-section I-shaped steel beam unit 3.
The present invention is not limited to the above-mentioned preferred embodiments, and any other products in various forms can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, which have the same or similar technical solutions as those of the present application, fall within the protection scope of the present invention.
Claims (7)
1. A construction method of a large-section I-shaped steel beam unit manufacturing production line is characterized by comprising the following steps:
1) Assembling a production line arrangement: the transmission roller units (25) are arranged in a length-splicing manner to form a transmission roller assembly line (1) in the assembly line, the assembly machine (4) and the 180-degree movable turnover machine (2) are erected on the transmission roller assembly line (1), then slide rails (17) are arranged on two sides of the transmission roller assembly line (1), and the turnover hanging bracket is erected and arranged on the slide rails (17) to form a movable steel plate hoisting machine (24) so as to complete the arrangement of the assembly line;
2) And (3) arranging a welding production line: lengthening a welding section conveying roller (23), connecting and assembling a driving roller unit (25) in the assembly line to form a driving roller assembly line (1) in the welding assembly line, installing 45-degree turnover machines (5) at notches (12) on two sides of the welding section conveying roller (23), and arranging cantilever type automatic submerged arc welding machines (6) on the outer sides of the 45-degree turnover machines (5) to finish the arrangement of the welding assembly line;
3) Straightening assembly line arrangement: lengthening a transmission roller unit (25) to connect a welding section transmission roller (23) in a welding production line to form a transmission roller production line (1) in a correction production line, and installing hydraulic straightening machines (7) on two sides of the transmission roller production line (1) to finish the arrangement of the correction production line;
4) Pretreatment and processing of steel plates: processing a steel plate;
5) Assembling the I-shaped steel beam unit: firstly, hoisting a processed steel plate to a transmission roller assembly line (1) in an assembly line by using a movable steel plate hoisting machine (24), positioning a lower wing plate on an I-shaped rod assembly machine, then positioning a web plate, and then turning over the assembled T-shaped assembly by using a 180-degree movable turnover machine (2) and positioning the T-shaped assembly to the lower wing plate;
6) Welding an I-shaped steel beam unit: the assembled I-shaped steel beam unit (3) is conveyed to a welding production line, and a 45-degree turnover machine (5) is used for performing welding operation on the I-shaped steel beam unit (3);
7) Straightening a flange plate of the I-shaped steel beam unit: turning the welded I-shaped steel beam unit (3) by 90 degrees by using a 180-degree moving turnover machine (2), conveying the I-shaped steel beam unit to a correction production line, and turning the I-shaped steel beam unit (3) by 180 degrees by using the 180-degree moving turnover machine (2);
8) Assembling and welding the reinforced rib: reinforcing ribs are arranged on the web plate of the corrected I-shaped steel beam unit (3) along lines, welding is simultaneously carried out on two sides during welding, welding current and welding speed are controlled, and manufacturing of the large-section I-shaped steel beam unit (3) is completed;
the overturning hanging bracket comprises a bracket (15) and a rail clamping device (18) arranged at the bottom of the bracket (15), and the rail clamping device (18) is arranged on the sliding rail (17);
a main beam (14) is arranged at the top of the support (15), at least two electric hoists (13) are arranged on the main beam (14), the electric hoists (13) are connected with a non-injury clamp (16) through ropes, and the electric hoists (13) can move relative to the main beam (14);
the 180-degree movable turnover machine (2) is formed by at least mutually matching and turning two 90-degree movable turnover machines (26), each 90-degree movable turnover machine (26) comprises a first turnover arm (30) and a second turnover arm (29), and the first turnover arm (30) and the second turnover arm (29) form an included angle of 90 degrees.
2. The construction method of the large-section i-steel beam unit manufacturing line according to claim 1, wherein: the main transmission part of the transmission roller assembly line (1) adopts the transmission mode of a motor driving roller.
3. The construction method of the large-section steel i-beam unit manufacturing line according to claim 1, wherein: in the step 4), when the steel plate is processed, a numerical control cutting machine is adopted to finely cut and blank the steel plate parts, a chamfering machine is utilized to polish and finely trim the cuts, and a beveling machine and an edge milling machine are adopted to process the welded edges needing to be processed or the plates with high precision requirements.
4. The construction method of the large-section steel i-beam unit manufacturing line according to claim 1, wherein: in the step 6), a 45-degree turnover machine (5) at a notch (12) on one side of a welding section conveying roller (23) is started, an I-shaped steel beam unit (3) is turned over by 45 degrees, a cantilever type automatic submerged arc welding machine (6) is used for automatically welding a seam on one side, after the welding seam is qualified, the 45-degree turnover machine (5) is started to rotate to flatten the I-shaped steel beam unit (3) to a transmission roller assembly line (1), the I-shaped steel beam unit (3) is turned over by 45 degrees by the other side 45-degree turnover machine (5), automatic welding of a seam on the other side is carried out by the cantilever type automatic submerged arc welding machine (6), after the welding seam is qualified, the 45-degree turnover machine (5) is started to rotate to flatten the I-shaped steel beam unit (3) to the transmission roller assembly line (1), then the I-shaped steel beam unit (3) is turned over by 180 degrees by the 180-degree movable turnover machine (2), and the welding operation of the seam is repeated until the welding operation of four positions is completed.
5. The construction method of the large-section i-steel beam unit manufacturing line according to claim 1, wherein: the notches (12) are arranged asymmetrically on the longitudinal beams (8) on both sides.
6. The construction method of the large-section i-steel beam unit manufacturing line according to claim 1, wherein: 45 upset machine (5) constitute by L type roll-over stand (20) and hydraulic pressure base (22), L type roll-over stand (20) and hydraulic pressure base (22) are connected through articulated bolt (21), when L type roll-over stand (20) rotated for hydraulic pressure base (22), L type roll-over stand (20) rotated along the axis of articulated bolt (21).
7. The utility model provides a big cross-section I-steel beam unit manufacturing line which characterized in that: the large-section I-shaped steel beam unit manufacturing line is manufactured by the construction method of the large-section I-shaped steel beam unit manufacturing line according to any one of claims 1 to 6.
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| CN110449817A (en) * | 2019-09-06 | 2019-11-15 | 智迈德股份有限公司 | The pre- assembling apparatus of fashioned iron |
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| CN102219147B (en) * | 2011-05-28 | 2013-06-12 | 长城汽车股份有限公司 | Frame rolling-over and transporting lifting appliance |
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| JPH0873027A (en) * | 1994-09-07 | 1996-03-19 | Ishikawajima Harima Heavy Ind Co Ltd | Steel plate reversing device |
| CN101927439A (en) * | 2010-09-28 | 2010-12-29 | 无锡华联精工机械有限公司 | 90 degree turnover mechanism for H-shaped steel |
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| CN202413992U (en) * | 2012-02-16 | 2012-09-05 | 十堰建隆科技有限公司 | Frame assembly turnover machine for heavy automobile finished automobile assembly line |
| CN106475785A (en) * | 2016-09-30 | 2017-03-08 | 中建钢构阳光惠州有限公司 | A kind of H profile steel intelligence assembly-welding device and intelligent assembly welding method |
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