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CN-121972873-A - Welding device for butt joint automation

CN121972873ACN 121972873 ACN121972873 ACN 121972873ACN-121972873-A

Abstract

The invention relates to the technical field of welding devices for butt joint automation, in particular to a welding device for butt joint automation, which comprises two welding heads for automatically welding a carriage door, wherein two welding heads are arranged and synchronously weld the carriage door automatically, a support frame is further arranged on the outer side of the welding heads, a support column is rotationally connected to the support frame, the support column is rotationally connected with the support frame, a rotating part for rotationally driving the support column is arranged on the support frame, the connecting frame and a matched supporting part lamp structure form an integrated supporting and correcting structure, a groove matched with the supporting part is accurately jointed with a trough peak of a corrugated plate, the corrugated plate is pre-corrected by a supporting middle plate, a pushing whole plate and a jacking plate, the flatness error of the corrugated plate is effectively reduced, the accuracy of joint gaps between a frame and the corrugated plate in the welding process is ensured, and a high-precision positioning reference is provided for automatic welding.

Inventors

  • CHEN FENG
  • BIAN LIQIN

Assignees

  • 南通大学

Dates

Publication Date
20260505
Application Date
20260316

Claims (10)

  1. 1. The welding device for butt joint automation comprises welding heads (1) for automatically welding carriage doors and is characterized in that two welding heads (1) are arranged, and the two welding heads (1) synchronously weld the carriage doors; the welding head is characterized in that a support frame (2) is further arranged on the outer side of the welding head (1), a support column (22) is connected to the support frame (2) in a rotating mode, the support column (22) is connected with the support frame (2) in a rotating mode, and a rotating piece (3) used for driving the support column (22) in a rotating mode is arranged on the support frame (2); one end of the support column (22) close to the welding head (1) is fixedly connected with a connecting frame (21), one side of the connecting frame (21) is fixedly connected with a fixed table (4), a rotating shaft (41) penetrates through the fixed table (4), and an adjusting piece (5) for adjusting the rotating shaft (41) is arranged on the fixed table (4); the rotary shaft (41) is also connected with a matched supporting piece (6), and the matched supporting piece (6) is used for supporting corrugated boards of the carriage door in a matched mode and correcting the flatness of the corrugated boards.
  2. 2. The welding device for butt-joint automation according to claim 1, wherein the matching supporting piece (6) comprises two connecting blocks (61), a supporting middle plate (62) and a limiting outer frame (63), the two connecting blocks (61) are respectively and fixedly arranged at two ends of the rotating shaft (41), and the two connecting blocks (61) are fixedly connected with the supporting middle plate (62); the two ends of the supporting middle plate (62) are fixedly connected with the two sides of the inner wall of the limit outer frame (63), and a movable welding port (64) is arranged between the two sides of the supporting middle plate (62) and the limit outer frame (63); One side of the lifting middle plate (62) far away from the connecting block (61) is provided with a continuous lifting groove (621), the lifting groove (621) is matched with the bottom surface of the corrugated plate, a limiting groove (631) is formed in the limiting outer frame (63), the limiting groove (631) is communicated with the lifting groove (621), and the limiting groove (631) is used for limiting the frame of the carriage door; The limiting outer frame (63) is provided with a pressing and pushing piece (7), and the pressing and pushing piece (7) is matched with the supporting groove (621) and is used for correcting corrugated boards on the supporting groove (621); the two sides of the inner part of the limit outer frame (63) are also respectively provided with a movable jacking piece (8), and the movable jacking piece (8) can movably jack the edge of the corrugated board through a movable welding opening (64).
  3. 3. The welding device for butt joint automation according to claim 2, wherein the pressing and pushing piece (7) comprises two first electric pushing rods (71), two synchronizing plates (72), two pushing pieces (73) and two pushing pieces (74), the two first electric pushing rods (71) are respectively and fixedly arranged at two sides of the outer part of the limiting outer frame (63), the output ends of the two first electric pushing rods (71) are fixedly connected with the synchronizing plates (72), and the synchronizing plates (72) are positioned at the outer sides of the supporting grooves (621); Two pushing plates (73) are arranged, the two pushing plates (73) are matched with the supporting grooves (621), and corrugated plates at the supporting grooves (621) are corrected; The pushing piece (74) is arranged on the synchronous plate (72), and the pushing piece (74) is used for synchronously driving the two pushing plates (73).
  4. 4. A welding device for butt-joint automation according to claim 3, characterized in that the side of the pushing plate (73) close to the corrugated plate is provided with a continuous matching groove (731), the matching groove (731) corresponds to the outer surface of the corrugated plate, and the ridge height of the matching groove (731) corresponds to the ridge height of the corrugated plate.
  5. 5. The welding device for butt-joint automation according to claim 4, wherein limiting pieces (75) are fixedly arranged at two ends of the pushing plate (73), each limiting piece (75) comprises a limiting plate (751), a limiting rod (752), a limiting sleeve (753) and a moving block (754), the limiting plates (751) are fixedly arranged at one ends of the pushing plate (73), one ends of the limiting rods (752) are fixedly connected with the limiting plates (751), and the limiting sleeves (753) are sleeved on the outer sides of the limiting rods (752) in a sliding mode; the movable block (754) is fixedly arranged on the outer side of the limiting sleeve (753), limiting grooves (632) are formed in two sides of the outer portion of the limiting outer frame (63), and one end of the movable block (754) is slidably connected inside the limiting grooves (632).
  6. 6. The welding device for butt automation according to claim 5, wherein the movable block (754) is fixedly provided with a pressing plate (7541) at one side of the inside of the limiting groove (632), and a pressure sensor (7542) is further arranged in the inside of the limiting groove (632).
  7. 7. The welding device for butt-joint automation according to claim 2, wherein the movable jacking member (8) comprises a second electric push rod (81), a movable plate (82), a connecting member (83) and a jacking plate (84), the second electric push rod (81) is fixedly arranged on the outer side of the limiting outer frame (63), the output end of the second electric push rod (81) penetrates through a limiting plate (751) block and is fixedly connected with the movable plate (82), the output end of the second electric push rod (81) is in sliding connection with the limiting outer frame (63), and the movable plate (82) is in sliding connection inside the limiting groove (631); The two connecting pieces (83) are arranged, the two connecting pieces (83) are respectively arranged at two ends of the movable plate (82), and the two connecting pieces (83) are connected with the jacking plate (84).
  8. 8. A welding device for butt automation according to claim 7, characterized in that the side of the jacking plate (84) close to the corrugated plate is provided with a continuous jacking groove (841), and the jacking groove (841) is matched with the shape surface of the corrugated plate.
  9. 9. The welding device for butt-joint automation according to claim 7, wherein the connecting piece (83) comprises a connecting support rod (831), a movable shaft (832), a reinforcing plate (833) and a limiting frame (834), one end of the connecting support rod (831) is rotatably connected with the movable plate (82) through a pin shaft, the other end of the connecting support rod (831) is rotatably connected with the movable shaft (832), the movable shaft (832) penetrates through the reinforcing plate (833), one end of the reinforcing plate (833) is fixedly connected with the jacking plate (84), the limiting frame (834) is fixedly installed on one side inside the limiting groove (631), an L-shaped limiting groove (632) is formed in the limiting frame (834), and the other end of the movable shaft (832) penetrates through the L-shaped limiting groove (632) in a sliding mode.
  10. 10. The welding device for butt automation according to claim 9, wherein the reinforcing plate (833) is L-shaped, and reinforcing ribs are provided inside the reinforcing plate (833).

Description

Welding device for butt joint automation Technical Field The invention relates to the technical field of welding devices for automatic butt joint, in particular to a welding device for automatic butt joint. Background In the existing automatic welding process of the carriage door, the conventional process comprises the steps of firstly splicing four metal frames around a corrugated board, pre-fixing a splicing component through spot welding, then placing the whole body after spot welding on an automatic welding workbench, and finishing edge sealing welding of the corrugated board and the frames through a single welding head; however, because corrugated board itself is continuous bending forming structure, the corrugated board edge and frame laminating degree are poor after the problem such as stupefied high deviation, local warpage easily appear in the bending process, spot welding pre-fixation can't eliminate local gap, the welding seam has the gas pocket when leading to final welding, unfused scheduling defect, influence sealing performance and structural strength of carriage door, when adopting single welding head unilateral welding simultaneously, heat concentrates on unilateral parent metal, lead to the regional thermal stress of welding seam to distribute unevenly, easily produce residual tensile stress after the cooling, bear goods impact and vibration for a long time in addition, the regional fatigue fracture that easily appears of welding seam stress concentration reduces product life, therefore, we propose a welding set for butt joint automation. Disclosure of Invention The present invention is directed to a welding device for butt automation, which solves the above-mentioned problems of the prior art. In order to achieve the aim, the invention provides the technical scheme that the welding device for butt joint automation comprises two welding heads for automatically welding the carriage door, wherein the two welding heads are used for automatically welding the carriage door synchronously; The outer side of the welding head is also provided with a support frame, the support frame is rotationally connected with a support column, the support column is rotationally connected with the support frame, and the support frame is provided with a rotating piece for rotationally driving the support column; One end of the support column, which is close to the welding head, is fixedly connected with a connecting frame, one side of the connecting frame is fixedly connected with a fixed table, a rotating shaft penetrates through the fixed table, and an adjusting piece for adjusting the rotating shaft is arranged on the fixed table; the rotary shaft is also connected with a cooperation supporting piece, and the cooperation supporting piece is used for carrying out cooperation supporting on corrugated boards of the carriage door and correcting the flatness of the corrugated boards. When the welding device is used, the two welding heads are arranged, so that when the corrugated plate and the frame of the carriage door are welded, the two sides of one side of the corrugated plate are synchronously welded, the welding uniformity is further ensured, and the phenomenon of uneven thermal stress distribution in a welding line area is prevented; Meanwhile, the corrugated board and the frame thereof of the carriage door are stably supported by the supporting frame, the connecting frame and the supporting piece, the corrugated board can be rotated to the welding position of the two welding joints, the carriage door can be welded with high precision, the corrugated board can be effectively corrected in flatness before welding, and the corrugated board can be conveniently welded after correction Furthermore, the matched supporting piece comprises two connecting blocks, a supporting middle plate and a limiting outer frame, wherein the two connecting blocks are respectively and fixedly arranged at two ends of the rotating shaft, and the two connecting blocks are fixedly connected with the supporting middle plate; the two ends of the supporting middle plate are fixedly connected with the two sides of the inner wall of the limit outer frame, and a movable welding port is arranged between the two sides of the supporting middle plate and the limit outer frame; The side, far away from the connecting block, of the lifting middle plate is provided with a continuous lifting groove which is matched with the bottom surface of the corrugated plate, the inside of the limiting outer frame is provided with a limiting groove which is communicated with the lifting groove, and the limiting groove is used for limiting the frame of the carriage door; The limiting outer frame is provided with a pressing and pushing integral piece which is matched with the supporting groove and used for correcting corrugated boards on the supporting groove; The two sides of the inner part of the limit outer frame are respectively provided with a movable jacking pie