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CN-122007750-A - Profile steel welding-following module and welding-following process

CN122007750ACN 122007750 ACN122007750 ACN 122007750ACN-122007750-A

Abstract

The application provides a profile steel welding module and a profile steel welding process, which are used for welding joints of a first profile steel and a second profile steel advancing along a third direction, and comprise a first welding moving seat, a second welding moving seat and a welding control mechanism, wherein the first welding moving seat comprises a hydraulic fixing seat and is used for driving the joints of the first profile steel and the second profile steel to be aligned in a first direction and a second direction; the follow-up fixing assembly comprises a first fixing assembly, a second fixing assembly and a first connecting piece which spans and fixedly connects the first fixing assembly and the second fixing assembly, wherein the follow-up fixing assembly comprises a first state and a second state, the hydraulic fixing seat is in press connection with the first fixing assembly and the second fixing assembly and is locked on the first section steel and the second section steel in a pressing mode, the follow-up fixing assembly moves along with the first section steel and the second section steel in a follow-up welding process of the first follow-up welding moving seat in the second state, the first connecting piece is a rigid connecting piece, and the relative positions of the first fixing assembly and the second fixing assembly are kept unchanged. The profile steel welding module can realize the alignment of profile steel in the welding process.

Inventors

  • LIANG LONG
  • LIU RUIHAI
  • Yao Yanjiu
  • Man Wenjun
  • Jia Minglun
  • QI SHOUCHEN
  • TIAN LEI
  • WEI KAI
  • FU CHANGJING
  • SUN WEILIANG
  • JIANG WEI
  • ZHOU YUELONG
  • MOU JUNHUA
  • WANG XINGMING
  • SI DAOMING
  • SUN YUNCHEN
  • Xing Gaochong

Assignees

  • 中铁十四局集团第四工程有限公司

Dates

Publication Date
20260512
Application Date
20260414

Claims (9)

  1. 1. A section steel welding module for welding a joint between a first section steel (a) and a second section steel (B) advancing in a third direction, comprising: The first welding moving seat (100) comprises a hydraulic fixing seat (110) for driving the joint of the first section steel (A) and the second section steel (B) to be aligned in a first direction (x 1) and a second direction (x 2); A follower fixture assembly (200) comprising a first fixture assembly (210), a second fixture assembly (220), and a first connector (230) spanning and fixedly connecting the first fixture assembly (210) and the second fixture assembly (220), the follower fixture assembly (200) comprising a first state and a second state; In the first state, the hydraulic fixing base (110) is in pressure connection with the first fixing assembly (210) and the second fixing assembly (220) and is used for being locked on the first section steel (A) and the second section steel (B); In the second state, during the welding process of the first welding moving seat (100), the follow-up fixing assembly (200) moves along with the first section steel (A) and the second section steel (B), and the first connecting piece (230) is a rigid connecting piece, so that the relative positions of the first fixing assembly (210) and the second fixing assembly (220) are kept unchanged.
  2. 2. The section steel weld-following module according to claim 1, wherein the first fixing assembly (210) includes four corner pieces (211) provided respectively corresponding to four corners of a cross section of the first section steel (a), the first fixing assembly (210) having a separated state and a locked state; each corner component (211) is provided with a guide part (212) extending along the first direction (x 1) and the second direction (x 2), and any two opposite guide parts (212) are provided with opposite telescopic holes (213); A connection limiting assembly (300) is arranged between two adjacent corner parts (211), the connection limiting assembly (300) comprises a connection push rod (310), and two ends of the connection push rod (310) respectively slidably extend into or withdraw from the telescopic holes (213) of the corner parts (211) at two sides of the connection push rod; The hole wall of the telescopic hole (213) is provided with a telescopic limit bolt (400); In the process of switching from the separation state to the locking state, the hydraulic fixing seat (110) drives the four corner pieces (211) to be close to each other, so that the end part of the connecting push rod (310) stretches into the telescopic hole (213), when the connecting push rod moves to a preset position, the limiting plug pin (400) is clamped into a push rod groove (311) correspondingly formed in the connecting push rod (310), thereby locking the relative position between two adjacent corner pieces (211), and forming circumferential fastening on the first section steel (A) in the first direction (x 1) and the second direction (x 2).
  3. 3. The section steel weld-following module according to claim 2, wherein the second fixing assembly (220) also comprises four of the corner pieces (211) and the connection limiting assembly (300); The first connecting pieces (230) include four, in the first fixing assembly (210) and the second fixing assembly (220), the corner pieces (211) corresponding in position in a third direction (x 3) are fixedly connected through the first connecting pieces (230), and the first connecting pieces (230) are configured to protrude toward the outer sides of the first section steel (a) and the second section steel (B) for avoiding a welding path.
  4. 4. A section steel weld module according to claim 3, further comprising a second support seat (500) for supporting the second section steel (B); The limiting bolt (400) is connected with the sliding plate (420) through the first compression spring (410), the first compression spring (410) always applies thrust towards the inside of the telescopic hole (213) to the limiting bolt (400), and the side surface of the limiting bolt (400) towards the opening of the telescopic hole (213) is an inclined surface and is used for being pushed by the connecting push rod (310) to enable the first compression spring (410) to retract; The hole wall of the telescopic hole (213) is also provided with a guide groove (213 a), the extending direction of the guide groove (213 a) is intersected with the axial direction of the telescopic hole (213), and the sliding plate (420) is in sliding fit with the guide groove (213 a); the push rod groove (311) is provided with an opening for the limit bolt (400) to be clamped in the radial direction of the telescopic hole (213), and is provided with an opening for the limit bolt (400) to slide out in the extending direction of the guide groove (213 a); The limiting plug pin (400) is configured to be clamped into the push rod groove (311) under the thrust of the first compression spring (410), the limiting plug pin (400) extends out of the guide part (212) along the extending direction of the guide groove (213 a), the push rod (430) is used for pushing the push rod (430) by the second support seat (500) when the first welding moving seat (100) moves to be in contact with the second support seat (500), and the sliding plate (420) connected with the limiting plug pin (400) is driven to be separated from the push rod groove (311) along the guide groove (213 a); After the first welding moving seat (100) moves to be in contact with the second supporting seat (500), the follow-up fixing assembly (200) is separated from the first section steel (A) and the second section steel (B), and the first welding moving seat (100) moves back to process the joint of the next group of section steel.
  5. 5. The steel welding module according to claim 4, wherein a second compression spring (320) is further arranged between the two opposite corner pieces (211), the second compression spring (320) is sleeved on the connecting push rod (310), and two ends of the second compression spring are respectively abutted on the surfaces of the two opposite guide parts (212) for pushing the two opposite corner pieces (211) to be separated from each other after the limit plug pin (400) is separated from the push rod groove (311); the periphery cover of supporting push rod (430) is equipped with third compression spring (431), the both ends of third compression spring (431) butt respectively on support push rod (430) with on the side of guide part (212), be used for after connecting push rod (310) withdraw from, drive spacing bolt (400) are along guide slot (213 a) reset to initial position.
  6. 6. The steel welding-following module according to claim 5, wherein the follow-up fixing assembly (200) is connected to the hydraulic fixing base (110) by a pulling rope, and the pulling rope is configured to pull the follow-up fixing assembly (200) back to the hydraulic fixing base (110) after the follow-up fixing assembly (200) is separated from the first steel (a) and the second steel (B) when the opposite corner members (211) are separated from each other.
  7. 7. The section steel welding module according to claim 4, further comprising a cold bending device (600), wherein the cold bending device (600) is arranged at one side of the second supporting seat (500) away from the first welding moving seat (100); The cold bending device (600) comprises a pushing component (610), and a first supporting point (620) and a second supporting point (630) which are respectively arranged at two sides of the pushing component (610), wherein the second supporting point (630) is arranged at one side close to the second supporting seat (500), the pushing component (610) is positioned at the inner side of the bending of the second section steel (B), and the first supporting point (620) and the second supporting point (630) are positioned at the outer side of the bending of the second section steel (B); the pushing component (610) is used for pushing the second section steel (B) along a first direction (x 1) to perform cold bending, so that the second section steel (B) generates a deflection force which is in the same direction with the bending direction at a joint with the first section steel (A) around the second supporting point (630); the first follow-up welding moving seat (100) extends towards the second supporting seat (500) and is provided with a first follow-up seat (700), and the distance between the first follow-up seat (700) and the first follow-up welding moving seat (100) is kept fixed; And two active compensation actuators are arranged on the first follow-up seat (700), are positioned on the inner side of the second section steel (B) and are used for applying reverse compensation force on two sides of the joint according to the magnitude and the direction of the offset force so as to offset the offset force transferred to the joint by the cold bending.
  8. 8. A welding-while-welding process characterized in that a joint of the first section steel (a) and the second section steel (B) is welded using the section steel welding-while-welding module according to any one of claims 1 to 7, the first welding-while-moving seat (100) including a welding robot arm (120), the welding-while-welding process comprising the steps of: Pushing the joint of the first section steel (A) and the second section steel (B) into the hydraulic fixing seat (110); Pressing and locking the follow-up fixing assembly (200) on the first section steel (A) and the second section steel (B) through the hydraulic fixing seat (110), and aligning the first section steel (A) and the second section steel (B); controlling the welding mechanical arm (120) to pre-weld the joint of the first section steel (A) and the second section steel (B); driving the first section steel (A) to push the second section steel (B) along a third direction (x 3) so that the joint is moved out of the hydraulic fixing seat (110); Synchronously moving the first welding moving seat (100) and the first section steel (A) and the second section steel (B) along a third direction (x 3), keeping the welding mechanical arm (120) relatively static with the joint in the welding process, and performing full welding on the joint; During the welding movement, the follow-up fixing assembly (200) moves synchronously with the first section steel (A) and the second section steel (B), and the relative positions of the first fixing assembly (210) and the second fixing assembly (220) are kept unchanged through the first connecting piece (230), so that the relative displacement of the first section steel (A) and the second section steel (B) is restrained in a first direction (x 1) and a second direction (x 2).
  9. 9. The welding-while-welding process according to claim 8, wherein the section steel welding-while-welding module further comprises a cold bending device (600), the cold bending device (600) being provided on a side of the second support base (500) remote from the first welding-while-moving base (100); The cold bending device (600) comprises a pushing component (610), and a first supporting point (620) and a second supporting point (630) which are respectively arranged at two sides of the pushing component (610), wherein the second supporting point (630) is arranged at one side close to the second supporting seat (500), the pushing component (610) is positioned at the inner side of the bending of the second section steel (B), and the first supporting point (620) and the second supporting point (630) are positioned at the outer side of the bending of the second section steel (B); the pushing component (610) is used for pushing the second section steel (B) along a first direction (x 1) to perform cold bending, so that the second section steel (B) generates a deflection force which is in the same direction with the bending direction at a joint with the first section steel (A) around the second supporting point (630); The first follow-up welding moving seat (100) extends towards the second supporting seat (500) and is provided with a first follow-up seat (700), and the distance between the first follow-up seat (700) and the first follow-up welding moving seat (100) is kept fixed and is opposite to the welding mechanical arm (120) positioned at the second working position; Two active compensation actuators are arranged on the first follow-up seat (700), are positioned on the inner side of the second section steel (B) and are used for applying reverse compensation forces on two sides of a joint according to the magnitude and the direction of the offset force so as to offset the offset force transmitted to the joint by the cold bend; the welding following process comprises the following steps: the controlling the welding mechanical arm (120) to perform full welding on the joint comprises: the active compensation actuator needs to apply a reverse compensation force f2=f1 L1/L2 wherein F1 is the thrust of the pushing assembly (610), L1 is the distance from the pushing assembly (610) to the second fulcrum (630), and L2 is the distance from the active compensation actuator to the second fulcrum (630).

Description

Profile steel welding-following module and welding-following process Technical Field The application relates to the field of welding, in particular to a profile steel welding-following module and a welding-following process. Background In the tunnel engineering construction process, the arch frame is a core supporting component for guaranteeing tunnel construction safety and maintaining stability of tunnel surrounding rock, and is mainly formed by splicing and welding multi-section steel, and the section steel is required to be subjected to subsequent processing such as cold bending and cutting after the splicing is completed so as to adapt to the tunnel arch profile requirement. At present, the splicing welding operation of the section steel for the tunnel arch frame generally adopts a traditional static welding mode, namely, two sections of section steel to be spliced are aligned and fixed firstly, after the full welding operation of the joint is completed through welding equipment, the welding seam is required to be completely cooled to a preset temperature, and then subsequent cold bending and cutting processing are carried out. Disclosure of Invention The application provides a profile steel welding module and a profile steel welding process, which can realize the alignment of profile steel during welding and welding. Specifically, the application is realized by the following technical scheme: An aspect of the present application provides a section steel welding module for welding a joint of a first section steel and a second section steel advancing in a third direction, comprising: The first welding moving seat comprises a hydraulic fixing seat and is used for driving the joint of the first section steel and the second section steel to be aligned in a first direction and a second direction; the follow-up fixing assembly comprises a first fixing assembly, a second fixing assembly and a first connecting piece which spans and fixedly connects the first fixing assembly and the second fixing assembly, and the follow-up fixing assembly comprises a first state and a second state; in the first state, the hydraulic fixing seat is in pressure connection with the first fixing assembly and the second fixing assembly and is used for being locked on the first section steel and the second section steel; In the second state, in the process of welding the first welding moving seat, the follow-up fixing assembly moves along with the first section steel and the second section steel, and the first connecting piece is a rigid connecting piece, so that the relative positions of the first fixing assembly and the second fixing assembly are kept unchanged. Optionally, the first fixing component comprises four corner parts respectively corresponding to four corners of the section of the first section steel, and the first fixing component has a separated state and a locking state; Each corner part is provided with a guide part extending along the first direction and the second direction, and any two opposite guide parts are provided with opposite telescopic holes; A connecting limiting assembly is arranged between two adjacent corner parts, the connecting limiting assembly comprises a connecting push rod, and two ends of the connecting push rod respectively slidably extend into or withdraw from the telescopic holes of the corner parts at two sides of the connecting push rod; the wall of the telescopic hole is provided with a telescopic limit bolt; In the process of switching from the separation state to the locking state, the hydraulic fixing seat drives the four corner parts to be close to each other, so that the end part of the connecting push rod stretches into the telescopic hole, when the connecting push rod moves to a preset position, the limiting bolt is clamped into a push rod groove correspondingly formed in the connecting push rod, thereby locking the relative position between two adjacent corner parts, and forming circumferential fastening on the first section steel in the first direction and the second direction. Optionally, the second fixing component also comprises four corner components and the connecting limiting component; The first connecting pieces include four, in the first fixing assembly and the second fixing assembly, the corner pieces corresponding to the positions in the third direction are fixedly connected through the first connecting pieces, and the first connecting pieces are configured to protrude toward the outer sides of the first section steel and the second section steel for avoiding a welding path. Optionally, the device further comprises a second supporting seat for supporting the second section steel; The wall of the telescopic hole is connected with a first compression spring and a sliding plate, the limiting bolt is connected with the sliding plate through the first compression spring, and the first compression spring always applies thrust towards the inside of the telescopic hole to the l