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CN-224223068-U - Narrow overlap joint automatic welder

CN224223068UCN 224223068 UCN224223068 UCN 224223068UCN-224223068-U

Abstract

The utility model relates to the technical field of welded steel pipe manufacturing, in particular to a narrow overlap automatic welding machine, which comprises a narrow overlap automatic welding machine, wherein a placing table is arranged on the narrow overlap automatic welding machine, pushing plates are connected to the left side and the right side of the narrow overlap automatic welding machine in a sliding mode, a power assembly for stably driving the pushing plates on the two sides is arranged on the narrow overlap automatic welding machine, a control box is arranged at the front end of the narrow overlap automatic welding machine, a first rack is connected in the pushing plate in a sliding mode, a contact plate is connected to one side, adjacent to the first rack, of the two sides, and is in sliding connection with the top surface of the placing table, a visual assembly for prompting workers to finish centering is arranged in the pushing plates, and a buffer assembly for stabilizing steel belts is arranged at the end of the visual assembly. Through the coordinated control of contact plate, gyro wheel and pressure sensor, when the contact plate promotes the steel band, the gyro wheel reduces the local pressure of horizontal thrust to steel band edge, and after the steel band placed in the middle, pressure sensor real-time supervision pressure value cuts off power through the control box accuracy, avoids steel band excessive pressure deformation.

Inventors

  • HAN MEIYAN
  • LIU YUNTAO
  • WANG ZENGJIAN

Assignees

  • 文安县京新钢材有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (8)

  1. 1. The utility model provides a narrow overlap joint automatic welder, its characterized in that, including narrow overlap joint automatic welder (1), place platform (2) are installed to narrow overlap joint automatic welder (1), narrow overlap joint automatic welder (1) left and right sides sliding connection has push pedal (3), just narrow overlap joint automatic welder (1) are provided with and are used for stable drive both sides power pack of push pedal (3), control box (4) are installed to narrow overlap joint automatic welder (1) front end, sliding connection has first rack (6) in push pedal (3), both sides first rack (6) adjacent one side all is connected with contact plate (5), contact plate (5) with place platform (2) top surface sliding connection, be provided with the visual subassembly that suggestion staff centered and accomplish in push pedal (3), visual subassembly tip is provided with the buffer assembly of stable steel band.
  2. 2. The narrow lap joint automatic welding machine according to claim 1, wherein the visual assembly comprises a pressing plate (10), a gear (7) is rotationally connected to the pushing plate (3), the gear (7) is meshed with the first rack (6), torsion springs (8) are sleeved at two ends of a rotating shaft of the gear (7), one ends of the torsion springs (8) are connected with the gear (7), the other ends of the torsion springs are connected with the pushing plate (3), a guide block (11) is connected to the pushing plate (3), a second rack (9) is connected to one end of the pressing plate (10), the second rack (9) is meshed with the gear (7), the other ends of the pressing plate (10) are in contact with the top surface of the steel belt, and the middle of the pressing plate (10) is slidably connected to the guide block (11).
  3. 3. The automatic narrow lap welding machine according to claim 2, wherein the buffer assembly comprises a mounting block (12), the mounting block (12) is slidably connected to one end of the pressing plate (10) contacted with the steel belt, a movable plate (14) is rotatably connected to the bottom of the mounting block (12), a return spring (13) is arranged in the pressing plate (10), and the lower end of the return spring (13) is connected with the mounting block (12).
  4. 4. A narrow lap automatic welder according to claim 3, further comprising a fixing plate (15), wherein a pressure sensor (16) is installed in the pressing plate (10), the fixing plate (15) is slidably connected in the pressing plate (10), the fixing plate (15) is connected to the top of the return spring (13), the fixing plate (15) is in press fit with the pressure sensor (16), and the pressure sensor (16) is in wired connection with the control box (4).
  5. 5. The automatic narrow lap welder according to claim 4, wherein the bottom surface of the movable plate (14) is connected with a protection pad (17).
  6. 6. The automatic narrow lap welder according to claim 5, wherein the bottom surface of the first rack (6) is rotatably connected with a plurality of rollers (18).
  7. 7. The automatic narrow lap welder according to claim 6, characterized in that an alarm lamp (19) is mounted on top of the pressing plate (10), and the alarm lamp (19) is connected with the control box (4) in a wired manner.
  8. 8. The automatic narrow lap welder according to claim 7, wherein telescopic pads (20) are circumferentially distributed on the outer sides of sliding fit surfaces of the push plate (3) and the contact plate (5), and the telescopic pads (20) are compressed when the push plate (3) and the contact plate (5) slide relatively.

Description

Narrow overlap joint automatic welder Technical Field The utility model relates to the technical field of welded steel pipe manufacturing, in particular to a narrow lap joint automatic welding machine. Background The steel strip is used as a core raw material for producing welded steel pipes, and is usually manufactured into a strip-shaped coiled material by adopting a cold rolling or hot rolling process, and in the process of manufacturing the steel pipes, the steel strip is required to be formed into a round shape by multiple rolling, and then edges are jointed by a welding technology to form a closed pipe body. The narrow lap welding technology has the advantages of small welding line, narrow heat affected zone, low material loss and the like, and becomes a key process for manufacturing the high-precision steel pipe. In the prior art, a narrow lap joint automatic seam welder for strip steel with the bulletin number of CN218487589U adopts a mechanical structure of double-side locating plates to realize the centering of the strip steel. Specifically, the device drives two groups of symmetrically distributed positioning plates through a servo motor to synchronously move along a guide rail to the middle, the edges of the steel belt are extruded from two sides, and the center line of the steel belt is forced to coincide with the axis of a welding head. However, the above-described prior devices have significant drawbacks in the centering process. Because only the rigid locating plate is used for applying horizontal extrusion force to the steel belt, when the thickness of the steel belt is uneven or initial bending exists, the steel belt is easy to generate local plastic deformation due to bilateral extrusion, and the ovality of the section is out of tolerance. Under the working condition of high-speed continuous feeding, dynamic contact of the steel belt and the positioning plate is easy to vibrate, so that the central line of the welding line is deviated, and welding defects such as unfused, air holes and the like are caused. Disclosure of utility model In order to overcome the defect of easy plastic deformation, the utility model provides a narrow lap joint automatic welding machine, which aims to solve the defect. The utility model provides an automatic welding machine of narrow overlap joint, includes the automatic welding machine of narrow overlap joint, the automatic welding machine of narrow overlap joint installs and places the platform, automatic welding machine of narrow overlap joint left and right sides sliding connection has the push pedal, just the automatic welding machine of narrow overlap joint is provided with and is used for stable drive both sides the power component of push pedal, the control box is installed to the automatic welding machine front end of narrow overlap joint, sliding connection has first rack in the push pedal, both sides the adjacent one side of first rack all is connected with the contact plate, the contact plate with place platform top surface sliding connection, be provided with the subassembly of seeing of suggestion staff centering completion in the push pedal, the subassembly tip is provided with the buffer assembly of stable steel band of seeing. Further, the visual assembly comprises a pressing plate, a gear is rotationally connected to the pushing plate and meshed with the first rack, torsion springs are sleeved at two ends of the rotating shaft of the gear, one ends of the torsion springs are connected with the gear, the other ends of the torsion springs are connected with the pushing plate, a guide block is connected in the pushing plate, a second rack is connected to one end of the pressing plate and meshed with the gear, the other ends of the pressing plate are contacted with the top surface of the steel belt, and the middle of the pressing plate is slidably connected in the guide block. Further, the buffer assembly comprises a mounting block, the mounting block is slidably connected to one end of the pressing plate, which is in contact with the steel belt, a movable plate is rotatably connected to the bottom of the mounting block, a reset spring is arranged in the pressing plate, and the lower end of the reset spring is connected with the mounting block. Further, the pressure sensor is arranged in the pressing plate, the fixing plate is connected in the pressing plate in a sliding mode, the fixing plate is connected to the top of the reset spring, the fixing plate is in extrusion fit with the pressure sensor, and the pressure sensor is in wired connection with the control box. Further, the bottom surface of the movable plate is connected with a protection pad. Further, the bottom surface of the first rack is rotatably connected with a plurality of rollers. Further, an alarm lamp is arranged at the top of the pressing plate, and the alarm lamp is connected with the control box in a wired mode. Further, the telescopic pads are circumferentially distributed on