CN-116673687-B - Automatic welding equipment in steel pipe

CN116673687BCN 116673687 BCN116673687 BCN 116673687BCN-116673687-B

Abstract

The invention discloses automatic welding equipment in a steel pipe, which comprises a disc piece and a lantern ring which are arranged along the axial direction, wherein a plurality of turning plates are rotatably arranged on the disc piece in a circumferential array mode and are turned over to be attached to the inner wall of a steel pipe a, a plurality of supporting rods are rotatably arranged on the lantern ring in a circumferential array mode, the plurality of supporting rods are turned over to enable the other end of each supporting rod to be abutted to the inner wall of the steel pipe b, a telescopic unit is used for driving the lantern ring to move radially relative to the disc piece to enable the steel pipe b to be attached to a port of the steel pipe a, and a welding mechanism comprises a welding gun for welding a gap after attachment. According to the automatic welding equipment in the steel pipe, the plurality of turning plates are turned over and attached to the inner wall of the steel pipe a so as to enable the disc piece to be relatively fixed with the steel pipe a, the plurality of supporting rods are turned over so as to enable the collar to be relatively fixed with the steel pipe b, and therefore the telescopic unit is utilized to drive the collar to radially move relative to the disc piece so as to enable the port of the adjacent side of the steel pipe b and the adjacent side of the steel pipe a to be attached and quickly aligned.

Inventors

LU MIN
WANG YIFAN
FAN RUIPING
YE YAN
ZHANG YONGBIN

Assignees

天津城建集团有限公司
天津第四市政建筑工程有限公司

Dates

Publication Date: 20260505
Application Date: 20230625

Claims (4)

1. An automatic welding device in a steel pipe is characterized by comprising a disc piece (11) and a sleeve ring (6) which are arranged along the axial direction; a plurality of turning plates (44) are rotatably arranged on the disc piece (11) in a circumferential array manner, and the turning plates (44) are turned over to be attached to the inner wall of the steel pipe a; A plurality of support rods (2) are rotatably arranged on the lantern ring (6) in a circumferential array manner, and the support rods (2) are turned over to enable the other ends of the support rods to abut against the inner wall of the steel pipe b; the telescopic unit is used for driving the lantern ring (6) to move radially relative to the disc piece (11) so as to enable the steel pipe b to be attached to the port of the steel pipe a; The welding mechanism comprises a welding gun for welding the joint gap; A driving disc (43) which is rotationally connected with the turning plate (44) is rotationally arranged in the disc piece (11); the outer wall of one side of the driving disc (43) is provided with a guide sleeve (4) with an arc-shaped channel (41) on the surface; The device also comprises an arm rod (31) which moves along the radial direction, and the arm rod (31) is in sliding fit with the arc-shaped channel (41); the inner wall of the lantern ring (6) is hinged with a plurality of deflector rods (25), the lantern ring further comprises a driving shaft (3) which moves along the radial direction, and the deflector rods (25) are positioned on the path of the driving shaft (3); The end parts of the driving shafts (3) slide on the plurality of deflector rods (25) respectively, so that the deflector rods (25) are driven to turn over to be close to the inner wall of the lantern ring (6); A piston damping block (71) is movably arranged in a boring hole formed in the end part of the driving shaft (3); The device also comprises a telescopic unit, a stroke detection unit and a control unit, wherein the output end of the telescopic unit is connected with the piston damping block (71), and the stroke detection unit is used for cutting off power supply of the telescopic unit when the piston damping block (71) moves to the end of a boring hole; the stroke detection unit includes: an insulating block (74) provided at an end of the piston damper block (71); a spring seat (8) which is inserted with the insulating block (74) is arranged in the boring hole; a plurality of buffer springs (73) are fixedly arranged on a ring table (72) arranged on the outer wall of the piston damping block (71), and sealing rubber rings are respectively arranged on the outer wall of the ring table (72) and the outer wall of the piston damping block (71); The outer wall of the lantern ring (6) is provided with a sliding block (23) in a sliding manner, and a first end of a connecting rod (22) hinged on the sliding block (23) is hinged on the supporting rod (2); The first end of an auxiliary rod (24) hinged on the deflector rod (25) is hinged on the sliding block (23).
2. An automatic welding apparatus for steel pipes according to claim 1, characterized in that the disc member (11) is provided with a fixed shaft (12) arranged in a waist groove provided in the flap (44).
3. An automatic welding equipment in steel pipes according to claim 1, characterized in that the disc member (11) is fixedly provided with a guide ring (13) and an inner ring (14) which are nested and assembled; the fixed mounting of lantern ring (6) is followed closely with the limit (62) of clearance slip between guide ring (13) and inner ring (14), still includes fixed pulley pulling subassembly, and it is used for making lantern ring (6) and drive shaft (3) keep relative motion.
4. An automatic welding device in a steel pipe according to claim 1, wherein the welding mechanism comprises a welding box (5) rotatably arranged on the outer wall of the guide ring (13) and a driving gear (51) fixedly arranged on the outer wall of the welding box (5), a transmission gear (52) is arranged at the output end of a rotating motor (53) fixedly arranged on the outer wall of one side of the disc member (11), and the transmission gear (52) and the driving gear (51) are meshed with each other.

Description

Automatic welding equipment in steel pipe Technical Field The invention relates to the technical field of automatic welding equipment, in particular to automatic welding equipment in a steel pipe. Background The natural gas pipeline is used as a dredging pipe for conveying natural gas, and a plurality of segmented steel pipes are required to be welded during installation, so that the segmented steel pipes are convenient to transport and adapt to certain topography conditions during subsequent welding and installation, and the continuity and the structural strength of the natural gas pipeline are ensured. 2023-04-18 Discloses an all-position automatic welding device for butt welding seams of small-diameter steel pipes according to the patent number CN115041792B, which comprises two sets of roller brackets with symmetrical structures, wherein the first set of roller brackets comprises a steel plate A, a steel plate B and a steel plate C, flange linear bearings A-F and flange nuts A are fixed on the steel plate A, flange linear bearings G and H are fixed on the steel plate C, and flange linear bearings I-L are fixed on the steel plate B; A steel sleeve A is sleeved with a flange linear bearing A at one end and a flange linear bearing G at the other end, a steel sleeve B is sleeved with a flange linear bearing B at one end and a flange linear bearing H at the other end, a steel sleeve C is sleeved with a flange linear bearing C at one end and a flange linear bearing I at the other end, a steel sleeve D is sleeved with a flange linear bearing D at one end and a flange linear bearing G at the other end, a steel sleeve E is sleeved with a flange linear bearing E at one end and a flange linear bearing J at the other end, a steel sleeve F is sleeved with a flange linear bearing F at one end and a flange linear bearing K at the other end, steel sleeves A-F ensure that all flange linear bearings are coaxially positioned and parallel and equidistant between a steel plate A, a steel plate B and a steel plate C, and steel plates B are clamped and fixed through bolts to form a first sleeve roller support, rollers on the roller support are used for clamping a steel tube, driving devices for driving the roller support to move along the steel tube are arranged on the roller support, a welding device is arranged on the steel plate A of the first sleeve roller support, the welding device can move along with the roller support, the welding device can realize position adjustment during welding, and the position adjustment can be realized through an optical axis A between the roller support and the roller support The optical axis B, the optical axis C, the optical axis D, the optical axis E and the optical axis F penetrate into the flange linear bearings to be positioned and moved, the distance between the two sets of roller supports is adjusted through the positive and negative screw rods, the flange nuts A and B, and then the gap adjustment of butt welding seams formed by the steel pipes A and B is adjusted, and the positive and negative screw rods rotate through the hand wheel A. Including the full-position automatic welder of minor diameter steel pipe butt welding seam among the above-mentioned patent, it is through at the corresponding welder etc. of the automatic movable fit of steel pipe outer wall in order to realize the welding between two steel pipes, compare manual welding very big promotion welding efficiency, simultaneously to the welding in the steel pipe, the present more welding mode of use still adopts manual welding, can reduce large-scale mechanical welding equipment's use and maintenance cost because of manual welding, personnel transfer simultaneously is convenient, can adjust at any time. At present, aiming at the welding of steel pipes, the steel pipes are required to be aligned, the welding seam is ensured to reach the required standard as far as possible, conventionally, the crane is used for matching with manual command and movement so as to achieve the alignment between the steel pipes, but the aligned steel pipes still need to be respectively provided with mounting frames for the two steel pipes, thereby ensuring the fixation between the steel pipes, and the bottom seam welding in the steel pipes is mostly still performed manually, so that more time is spent for fixing, welding and the like of the steel pipes, and the efficiency is low. Disclosure of Invention The invention aims to provide automatic welding equipment in steel pipes, which can realize quick fixation and welding of two steel pipes, thereby accelerating the welding efficiency between pipelines. In order to achieve the aim, the invention provides the technical scheme that the automatic welding equipment in the steel pipe comprises a disc piece and a lantern ring which are arranged along the axial direction; A plurality of turning plates are rotatably arranged on the circular disc piece in a circumferential array manner, and the turning pla