CN-121972755-A - Straight seam steel pipe welding machine

CN121972755ACN 121972755 ACN121972755 ACN 121972755ACN-121972755-A

Abstract

The invention relates to the technical field of steel pipe welding, in particular to a straight seam steel pipe welding machine which comprises a frame, two groups of pipe carrying structures symmetrically arranged on the frame, a welding structure connected with the frame, and a pretreatment structure arranged on the frame, wherein the pretreatment structure comprises two groups of flame spraying mechanisms symmetrically arranged on the frame and arranged between the two groups of pipe carrying structures, a group of movable polishing mechanisms are arranged between the two groups of flame spraying mechanisms, and each movable polishing mechanism comprises a lifting moving part, a double-shaft driving part and eight groups of three-surface polishing parts. According to the invention, through the mutual matching mode of the carrier pipe structure, the welding structure and the pretreatment structure, the oil removal, polishing and trimming of the straight joint steel pipes to be welded are completed, the gas generated in the welding process is prevented from escaping before the weld joint metal is solidified, the formation of air holes in the welding layer is avoided, the welding quality is improved, the offset of the butt joint of two groups of straight joint steel pipes is reduced, and the welding precision and the welding quality are improved.

Inventors

PENG FEI
ZHOU GUANGXI
LI XU

Assignees

青岛邯源科技有限公司

Dates

Publication Date: 20260505
Application Date: 20260318

Claims (7)

1. The utility model provides a straight seam steel pipe welding machine, includes the frame, frame fixedly connected with control cabinet, its characterized in that still includes: Two groups of pipe carrying structures symmetrically arranged on the frame, wherein the pipe carrying structures are used for carrying straight-seam steel pipes and adjusting the positions of the straight-seam steel pipes; The welding structure comprises a hydraulic cylinder and an arc welding head, wherein the hydraulic cylinder is fixedly arranged on the frame, and the arc welding head is fixedly connected with the moving end of the hydraulic cylinder; Install pretreatment structure in the frame, pretreatment structure is including the symmetry install two sets of flame mechanism that spout in the frame, two sets of flame mechanism that spout all set up between two sets of carrier tube structures, be provided with a set of removal grinding machanism between two sets of flame mechanism that spout, remove grinding machanism including lift remove portion, biax drive portion and eight three face grinding portions of group, lift remove portion with frame fixed connection, biax drive portion installs on the lift remove portion, eight three face grinding portions symmetry of group are installed on the both ends of biax drive portion, three face grinding portions are used for right outer disc, interior disc and the terminal surface of straight slit steel pipe carry out the operation of polishing.
2. The straight seam steel pipe welding machine according to claim 1, wherein the pipe carrying structure comprises a base fixedly connected with the frame, a first active telescopic frame is fixedly installed in the base, a moving end of the first active telescopic frame is fixedly connected with a moving seat which is in sliding connection with the base, two groups of first motors which are symmetrically arranged are fixedly installed on the moving seat, each group of first motors is coaxially and fixedly connected with a group of carrying rollers, two groups of second active telescopic frames are fixedly installed on the moving seat, a group of lifting frames are fixedly connected with the moving ends of the two groups of second active telescopic frames together, the lifting frames are connected with roller frames through springs, the roller frames are rotationally connected with two groups of pressing wheels, the lifting frames are fixedly connected with pressure sensors, and the pressure sensors are fixedly connected with brake pads.
3. The straight seam steel pipe welding machine according to claim 1, wherein the flame spraying mechanism comprises a fixing frame fixedly connected with the frame, two groups of third driving telescopic frames are fixedly connected with the fixing frame, a group of hanging frames are fixedly connected with moving ends of the two groups of third driving telescopic frames together, four-way pipe fittings are fixedly connected with the hanging frames, one group of hoses are fixedly connected with the four-way pipe fittings through connectors, three groups of flame spraying heads are connected with the four-way pipe fittings, and the pointing directions of the three groups of flame spraying heads all point to the same point.
4. The straight seam steel pipe welding machine according to claim 1, wherein the lifting moving part comprises a track frame fixedly connected with the frame, two groups of guide rods are fixedly installed in the track frame, a second motor is fixedly installed at the top of the track frame, an output shaft of the second motor is fixedly connected with a screw rod, the screw rod is in threaded connection with a sliding block which is slidably installed in the track frame, the sliding block is in sliding connection with the two groups of guide rods, and the sliding block is connected with the double-shaft driving part.
5. The straight seam steel pipe welding machine according to claim 4, wherein the double-shaft driving part comprises a double-shaft motor, two groups of power boxes and two groups of transverse rail frames, the double-shaft motor is fixedly installed on the sliding block, the two groups of power boxes are symmetrically arranged at two ends of the double-shaft motor, the power boxes are fixedly connected with the sliding block, the two groups of transverse rail frames are symmetrically and fixedly installed on the sliding block, each group of transverse rail frames are fixedly connected with a group of third motor, an output shaft of the third motor is fixedly connected with a screw rod, the screw rod is in threaded connection with a synchronous frame in sliding connection with the transverse rail frames, the synchronous frame is rotationally connected with a parallel frame, the parallel frame is hinged with four groups of hinge plates, a first gear is rotationally installed in the power boxes, the first gear is fixedly connected with an output shaft of the double-shaft motor, the first gear is in meshed connection with a second gear, the second gear is rotationally installed in the power boxes, the second gear is fixedly connected with a transmission frame, the transmission frame is in threaded connection with the four groups of hinge plates, the transmission frame is fixedly connected with the four hinge plates, and the transmission frame is fixedly connected with the four hinge plates in a butting mode, and the transmission frame is fixedly connected with the four hinge plates.
6. A straight seam steel pipe welder as set forth in claim 5 wherein said frame fixedly connects two sets of waste bins symmetrically disposed, said waste bins being disposed below said butt-joint frame.
7. The straight seam steel pipe welding machine according to claim 5, wherein the three-face polishing portion comprises a framework and a polishing block, the framework is detachably connected with the butt joint frame, a plane polishing surface is arranged on the polishing block, an outer circle polishing surface is connected with the plane polishing surface, an inner circle polishing surface is connected with the plane polishing surface, and two groups of inclined pushing surfaces are symmetrically arranged on the polishing block.

Description

Straight seam steel pipe welding machine Technical Field The invention relates to the technical field of steel pipe welding, in particular to a straight seam steel pipe welding machine. Background The processing of the straight seam steel pipe is required to go through a plurality of core processes, rolling operation is firstly carried out, after rolling is completed, welding is carried out on a longitudinal gap formed by rolling by utilizing welding equipment, thus a semi-finished product of the straight seam steel pipe is obtained, and after the welding process is finished, the straight seam steel pipe is transferred to cutting equipment for fixed-length cutting, so that a finished pipe meeting the design length requirement is obtained. If one group of straight-seam steel pipes does not meet the length requirement, two groups of straight-seam steel pipes are welded into one group. In the process of welding two groups of straight seam steel pipes into a whole, if oil or water exists around the position to be welded of the straight seam steel pipes, high temperature generated by arc welding can enable the oil or water to generate gas and enter a welding layer, so that air holes are formed in the welding layer, welding quality is reduced, meanwhile, as the straight seam steel pipes are welded by rolled steel plates, a certain out-of-roundness of the pipe body can exist, particularly, the position close to the straight seam is slightly irregular in geometric shape, when the two straight seam steel pipes are assembled, if the region where the straight seam is just a high point or a low point of the pipe, local offset exceeding is possibly caused, particularly, in a small-caliber or thin-wall pipe is more obvious, if the two groups of straight seam steel pipes are welded directly, the offset exceeding is caused when the two groups of straight seam steel pipes are butted, and welding precision and welding quality are further reduced. Disclosure of Invention The invention aims to provide a straight seam steel pipe welding machine which is used for solving the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: The utility model provides a straight seam steel pipe welding machine, includes the frame, frame fixedly connected with control cabinet still includes: Two groups of pipe carrying structures symmetrically arranged on the frame, wherein the pipe carrying structures are used for carrying straight-slit steel pipes and adjusting the positions of the straight-slit steel pipes; The welding structure comprises a hydraulic cylinder and an arc welding joint, wherein the hydraulic cylinder is fixedly arranged on the frame, and the arc welding joint is fixedly connected with the moving end of the hydraulic cylinder; Install the preprocessing structure in the frame, preprocessing structure is including two sets of flame mechanisms that spout of symmetry installation in the frame, and two sets of flame mechanisms that spout all set up between two sets of carrying tube structures, be provided with a set of removal grinding machanism between two sets of flame mechanisms that spout, remove grinding machanism including lift mobile part, biax drive part and eight three face grinding parts of group, lift mobile part and frame fixed connection, biax drive part is installed on lift mobile part, and eight three face grinding parts of group are installed on the both ends of biax drive part symmetrically, and three face grinding parts are used for carrying out the operation of polishing to the outer disc, the inner disc and the terminal surface of straight seam steel pipe. According to the invention, the carrying tube structure comprises a base fixedly connected with a frame, a first active telescopic frame is fixedly arranged in the base, a movable seat which is in sliding connection with the base is fixedly connected with a movable end of the first active telescopic frame, two groups of first motors which are symmetrically arranged are fixedly arranged on the movable seat, each group of first motors is coaxially and fixedly connected with a group of carrying rollers, two groups of second active telescopic frames are fixedly arranged on the movable seat, the movable ends of the two groups of second active telescopic frames are fixedly connected with a group of lifting frames together, the lifting frames are connected with roller frames through springs, the roller frames are rotationally connected with two groups of pressing wheels, and the lifting frames are fixedly connected with pressure sensors which are fixedly connected with brake pads. As a further improvement scheme of the invention, the flame spraying mechanism comprises a fixing frame fixedly connected with a frame, wherein the fixing frame is fixedly connected with two groups of third active telescopic frames, the moving ends of the two groups of third active telescopic frames ar