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CN-121972808-A - High-precision laser welding device for variable-section beam of centering steel factory building

CN121972808ACN 121972808 ACN121972808 ACN 121972808ACN-121972808-A

Abstract

The invention relates to the technical field of steel beam welding, in particular to a high-precision centering steel factory building variable-section beam laser welding device which comprises a supporting mechanism, wherein the supporting mechanism comprises a base, a portal frame and a supporting frame, wherein the portal frame and the supporting frame are fixedly arranged at the top of the base and are distributed front and back. According to the invention, the pressing plate and the L-shaped hanging plate are pushed to move downwards through the angle adjusting assembly, the L-shaped hanging plate drives the upper flange to move downwards until the rear end of the upper flange contacts with the rear end of the web plate, then the angle adjusting assembly drives the pressing plate and the front end of the L-shaped hanging plate to rotate downwards, the front end of the upper flange is driven to incline downwards by the L-shaped hanging plate until the front end of the upper flange is placed on the web plate, then the welding head I and the welding head II are used for welding gaps between the lower flange, the web plate and the upper flange, the web plate is not required to be welded together, and then the web plate is turned up and down for 180 degrees, so that the web plate and the upper flange are combined together for welding, and the welding efficiency is improved.

Inventors

  • SUN JIONGGUANG
  • MA WENFENG
  • FAN YANING

Assignees

  • 青岛鑫光正钢结构股份有限公司

Dates

Publication Date
20260505
Application Date
20260331

Claims (9)

  1. 1. The high-precision centering steel factory room variable cross-section beam laser welding device is characterized by comprising a supporting mechanism (1), wherein the supporting mechanism (1) comprises a base (11), a portal frame (12) and a supporting frame (15), wherein the portal frame (12) and the supporting frame (15) are fixedly arranged at the top of the base (11) and are distributed front and back; the inclined beam mechanism (4), the inclined beam mechanism (4) comprises a pressing plate (41) arranged at the bottom of the supporting frame (15), the bottom of the pressing plate (41) is fixedly connected with L-shaped hanging plates (42) which are distributed in a bilateral symmetry manner, and an angle adjusting assembly (44) for driving the pressing plate (41) to move up and down and rotate back and forth is arranged at the bottom of the supporting frame (15); the pressing mechanism (5) comprises a movable plate (51) and a sliding frame (52) which are movably arranged between two vertical sections of the portal frame (12) and are distributed up and down, a return spring I (53) is fixedly connected between the movable plate (51) and the sliding frame (52), and a hydraulic push rod (54) for driving the movable plate (51) to move up and down is fixedly arranged on a horizontal section of the portal frame (12); Welding mechanism (6), welding mechanism (6) are including bilateral symmetry setting up in sliding frame (61) at base (11) top, the front side fixed mounting of sliding frame (61) has first welding head (62), slidable mounting has second welding head (63) on sliding frame (61), install on balladeur train (52) and be used for guiding second welding head (63) along with girder steel section high variation lift adjustment's altitude mixture control subassembly (64), electric putter three (65) that are used for promoting sliding frame (61) to being close to base (11) center removal are installed to the front side of portal frame (12).
  2. 2. The high-precision centering steel factory building variable cross-section beam laser welding device is characterized in that a supporting table (13) positioned below the horizontal section of a portal frame (12) is arranged at the top of a base (11), a plurality of driving wheels (14) which are distributed at equal intervals in the front-back direction are rotatably arranged on the supporting table (13), roller frames (16) are further arranged on the front side and the back side of the base (11), and the top of each roller frame (16) is flush with the top of each driving wheel (14).
  3. 3. The laser welding device for the variable cross-section beam of the high-precision centering steel factory building, which is disclosed in claim 2, is characterized in that the top of the base (11) is further provided with a rolling mechanism (2) which is symmetrically distributed in the front-back direction, the rolling mechanism (2) comprises a first pressing wheel (21) which is arranged at the top of the supporting table (13) and is symmetrically distributed in the left-right direction, and the top of the base (11) is provided with a lifting assembly (22) for driving the first pressing wheel (21) to move up and down for adjustment.
  4. 4. The laser welding device for the variable cross-section beam of the high-precision centering steel factory building is characterized in that a centering mechanism (3) positioned between a front rolling mechanism and a rear rolling mechanism (2) is further arranged at the top of the base (11), the centering mechanism (3) comprises first pushing wheels (31) which are arranged at the top of the supporting table (13) and distributed in a bilateral symmetry mode, an electric first pushing rod (32) used for pushing the first pushing wheels (31) to move towards the direction close to the center of the base (11) is fixedly arranged at the top of the base (11) through a support column, and a telescopic section of the electric first pushing rod (32) is in rotary connection with the corresponding first pushing wheels (31).
  5. 5. The laser welding device for the variable cross-section beam of the high-precision centering steel mill room of claim 1, wherein the angle adjusting assembly (44) comprises a second electric push rod (441) hinged to the bottom of the supporting frame (15) and distributed front and back, a mounting seat (442) is hinged to the bottom of a telescopic section of the second electric push rod (441), the bottom of the mounting seat (442) is fixedly connected with the top of the pressing plate (41), and a plurality of rollers (43) distributed front and back at equal intervals are rotatably installed on the horizontal sections of the pressing plate (41) and the L-shaped hanging plate (42).
  6. 6. The laser welding device for the variable cross-section beam of the high-precision centering steel factory building of claim 1, wherein the left end and the right end of the sliding frame (52) are connected with the vertical section of the portal frame (12) in an up-down sliding mode, guide rods (531) which are distributed in a bilateral symmetry mode are fixedly connected to the top of the sliding frame (52), the top ends of the guide rods (531) penetrate through the upper portion of the movable plate (51) in a sliding mode, a baffle is arranged on the top end of the guide rods (531), and rolling wheels (532) located right above the supporting table (13) are rotatably arranged at the bottom of the sliding frame (52).
  7. 7. The laser welding device for the variable cross-section beam of the high-precision centering steel mill room of claim 6, wherein the height adjusting assembly (64) comprises a sliding block (641) which is slidably arranged on the sliding frame (61), the welding head II (63) is fixedly arranged on the sliding block (641), a linkage rod (642) is fixedly connected to the rear side of the sliding block (641), a guide groove (643) is fixedly arranged on the front side of the sliding frame (52), and the rear end of the linkage rod (642) is in left-right sliding connection with the corresponding guide groove (643).
  8. 8. The high-precision centering steel factory building variable cross-section beam laser welding device is characterized in that limiting mechanisms (7) which are arranged on the front side and the rear side of a portal frame (12) and distributed in a bilateral symmetry mode are further arranged on the base (11), the limiting mechanisms (7) comprise lower limiting wheels (71) and upper limiting wheels (72) which are arranged above a supporting table (13) and distributed from bottom to top in sequence, grooves are formed in the outer ring surface of the upper limiting wheels (72), and telescopic assemblies (73) used for supporting the lower limiting wheels (71) and the upper limiting wheels (72) are arranged on the supporting table (13).
  9. 9. The laser welding device for the variable cross-section beam of the high-precision centering steel factory building of claim 8, wherein the telescopic component (73) comprises a fixed rod (731) fixedly installed at the top of the supporting table (13), a movable rod (732) is installed at the top of the fixed rod (731) in a sliding mode up and down, a second return spring (733) sleeved outside the movable rod (732) is further installed at the top of the fixed rod (731), the top of the second return spring (733) is fixedly connected with the outer annular wall of the movable rod (732), supporting arms (734) are installed on the fixed rod (731) and the movable rod (732) through bolts, the lower limiting wheel (71) is rotatably installed on the supporting arm (734) below, and the upper limiting wheel (72) is rotatably installed on the supporting arm (734) above.

Description

High-precision laser welding device for variable-section beam of centering steel factory building Technical Field The invention relates to the technical field of steel beam welding, in particular to a high-precision laser welding device for a variable-section beam of a centering steel factory building. Background Steel structure plants are industrial building facilities using steel as a main bearing member and are divided into light and heavy types. When a large-span steel factory building is built, in order to improve the supporting strength and reduce the material waste, a variable-section steel beam is generally used for manufacturing a roof and a factory building cross beam, compared with an equal-section beam, the steel can be saved by 15% -30%, the dead weight is obviously reduced, the dead weight of the steel beam is light, the earthquake effect is small, and the roof oblique beam adopts a wedge shape to improve the building clear height. The variable cross-section steel beam is formed by welding a wedge-shaped web and an upper flange and a lower flange, when the variable cross-section steel beam is welded by the existing welding equipment, the web is generally centered and pressed on the lower flange, the web and the lower flange are welded together, then the welded web and the lower flange are turned over for 180 degrees, the web is centered and pressed on the upper flange, then the web and the upper flange are welded together, the web and the upper flange can be welded together only by two times of welding by the existing welding equipment, and the welding efficiency needs to be further improved. Disclosure of Invention In order to solve the problems, the invention provides a high-precision laser welding device for a variable cross-section beam of a centering steel factory building, which comprises a supporting mechanism, wherein the supporting mechanism comprises a base, a portal frame and a supporting frame, wherein the portal frame and the supporting frame are fixedly arranged at the top of the base and are distributed front and back. The inclined beam mechanism comprises a pressing plate arranged at the bottom of the supporting frame, the bottom of the pressing plate is fixedly connected with L-shaped hanging plates which are distributed in a bilateral symmetry mode, and an angle adjusting assembly used for driving the pressing plate to move up and down and rotate back and forth is installed at the bottom of the supporting frame. The pressing mechanism comprises a movable plate and a sliding frame which are movably arranged between two vertical sections of the portal frame and are distributed up and down, a first reset spring is fixedly connected between the movable plate and the sliding frame, and a hydraulic push rod for driving the movable plate to move up and down is fixedly arranged on a horizontal section of the portal frame. The welding mechanism comprises a sliding frame which is arranged at the top of the base in a bilateral symmetry manner, a first welding head is fixedly arranged at the front side of the sliding frame, a second welding head is arranged on the sliding frame in a sliding manner, a height adjusting component which is used for guiding the second welding head to be adjusted in a lifting manner along with the change of the section height of the steel beam is arranged on the sliding frame, and an electric push rod III which is used for pushing the sliding frame to move towards the center of the base is arranged at the front side of the portal frame. In one possible implementation mode, a supporting table below the horizontal section of the portal frame is installed at the top of the base, a plurality of driving wheels which are distributed at equal intervals around are rotatably installed on the supporting table, roller frames are also installed on the front side and the rear side of the base, and the top of each roller frame is flush with the top of each driving wheel. In one possible implementation manner, the top of the base is also provided with a rolling mechanism which is distributed in a front-back symmetrical manner, the rolling mechanism comprises a first pressing wheel which is arranged at the top of the supporting table and distributed in a left-right symmetrical manner, and the top of the base is provided with a lifting assembly for driving the first pressing wheel to move up and down for adjustment. In one possible implementation mode, the top of the base is also provided with a centering mechanism positioned between the front rolling mechanism and the rear rolling mechanism, the centering mechanism comprises first pushing wheels which are arranged at the top of the supporting table and distributed in a bilateral symmetry mode, the top of the base is fixedly provided with a first electric push rod which is used for pushing the first pushing wheels to move towards the direction close to the center of the base through a support column, and a telescopic section o