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CN-121988835-A - Copper product low-hydrogen type gas shielded welding structure

CN121988835ACN 121988835 ACN121988835 ACN 121988835ACN-121988835-A

Abstract

The invention belongs to the field of welding protection, and discloses a copper product low-hydrogen type gas shielded welding structure, which comprises a machine body, a mounting plate, a welding head, a gas guide assembly, a protective gas steel cylinder, two groups of sealing assemblies and a hydraulic rod, wherein the mounting plate is arranged on the machine body; when the welding head, the second air duct and the hydraulic rod are integrally linked through the mounting plate, so that the precise synchronization of the supply of the protective gas and the welding alignment is realized, the problem of initial exposure of a molten pool caused by the delay of the supply of the protective gas in the traditional process is thoroughly solved, simultaneously, two groups of symmetrically and independently driven sealing assemblies are matched, the protective gas cover is driven to synchronously swing along with the welding head, the whole area of a wide welding pool is uniformly covered, the defect of insufficient protection of the edge of the molten pool is overcome, the adaptation characteristic of a metal corrugated telescopic hose is combined, the stable adaptation of the air duct along with the movement of the welding head is ensured, the installation can be realized without changing the traditional welding mobile module, and the condition that the welding seam of a copper product has no hydrogen-induced defect, the strength and the conductivity reach the standard is ensured.

Inventors

  • HU CHAOJIE
  • Su Sande
  • CUI KEWEI
  • Yun Kefeng
  • WANG DONGQI

Assignees

  • 河南富航铜业有限公司

Dates

Publication Date
20260508
Application Date
20260328

Claims (10)

  1. 1. The low-hydrogen gas shielded welding structure of the copper product comprises a machine body (1) and is characterized by further comprising a mounting plate (210), a welding head (209), a gas guide assembly, a protective gas steel cylinder (207), two groups of sealing assemblies and a hydraulic rod (208); The machine body (1) is provided with a bearing bracket (101), a longitudinal traveling module (102), a longitudinal sliding table (103), a transverse traveling module (104) and a transverse sliding seat (105); The mounting plate (210) is mounted on the transverse sliding seat (105), the welding head (209) is mounted on one side of the mounting plate (210), and the mounting plate (210) is fixedly connected with the output end of the hydraulic rod (208); The air guide assembly is communicated with the protective air steel cylinder (207) and is in linkage fit with the mounting plate (210); The two groups of sealing assemblies are symmetrically arranged by taking the welding head (209) as a symmetry center, are respectively connected with the transverse sliding seat (105) and the air guide assembly and are used for driving the air guide assembly to swing.
  2. 2. The low-hydrogen type gas shielded welding structure of copper products according to claim 1, wherein the gas guide assembly comprises two first gas guide pipes (2), two second gas guide pipes (201), a shunt pipe (205), a metal corrugated telescopic hose (206), two gas branch pipes (203) and two protective gas covers (204); one end of the metal corrugated telescopic hose (206) is connected with a pressure reducer at the outlet of the protective gas steel cylinder (207), the other end of the metal corrugated telescopic hose is arranged at the central position of the shunt tube (205), the two first air guide pipes (2) are respectively fixedly arranged at the two ends of the shunt tube (205), and the inner wall of each first air guide pipe (2) is in sliding fit with the second air guide pipe (201).
  3. 3. The low-hydrogen gas shielded welding structure of copper products according to claim 2, wherein the outer surfaces of the two second gas guide pipes (201) are fixedly arranged on both sides of the mounting plate (210), and in an initial state, the ends of the two second gas guide pipes (201) can shield the outlet of the shunt pipe (205).
  4. 4. The low-hydrogen type gas shielded welding structure for copper products according to claim 3, wherein one end of the two second gas guide pipes (201) far away from the shunt pipe (205) is respectively communicated with the two gas branch pipes (203), and the two protective gas covers (204) are respectively connected with one end of the two gas branch pipes (203) far away from the second gas guide pipes (201).
  5. 5. The low-hydrogen type gas shielded welding structure for copper products according to claim 4, wherein the connection parts of the two second gas guide pipes (201) and the two gas branch pipes (203) are respectively provided with a rotary joint (202), the two rotary joints (202) can realize 360-degree unobstructed rotation, and the sealing fit is between the two second gas guide pipes (201) and the two gas branch pipes (203).
  6. 6. The low-hydrogen type gas shielded welding structure for copper products according to claim 5, wherein each group of the sealing assemblies comprises a sealing box (3), a pressing plate (301), a pushing plate (302), a telescopic hose (303), a hollow cylinder (304) and a swinging rod (305); One side of the push plate (302) is fixedly connected with one side of the transverse sliding seat (105), the other side of the push plate is fixedly connected with one side of the pressing plate (301), and the pressing plate (301) is in sliding sealing fit with the inner wall of the sealing box (3).
  7. 7. The low-hydrogen type gas shielded welding structure for copper products according to claim 6, wherein one end of the telescopic hose (303) is communicated with the inside of the sealing box (3), the other end of the telescopic hose is communicated with the hollow cylinder (304), and the swinging rod (305) is in sliding sealing fit with the inner wall of the hollow cylinder (304).
  8. 8. The low hydrogen type gas shielded welding structure of copper product according to claim 7, wherein each group of the sealing assemblies further comprises a spring (306), a hinge (307) and a fixing ring (308); One end of the spring (306) is fixedly connected with one end of the swinging rod (305), the other end of the spring is fixedly connected with the inner wall of the hollow cylinder (304), one end, far away from the hollow cylinder (304), of the swinging rod (305) is connected with the fixed ring (308) through the hinge joint (307), and the air branch pipe (203) is fixedly arranged at the inner wall of the fixed ring (308) in a penetrating mode.
  9. 9. The low-hydrogen type gas shielded welding structure of copper products according to claim 1, wherein the longitudinal traveling module (102) is installed at the inner wall of the bearing bracket (101), the bearing bracket (101) is fixedly arranged at one side of the top of the machine body (1), and the protective gas steel cylinder (207) is installed at one side of the bearing bracket (101).
  10. 10. The low-hydrogen type gas shielded welding structure of copper products of claim 9, wherein the longitudinal sliding table (103) is in driving connection with the longitudinal traveling module (102), the transverse traveling module (104) is arranged on the longitudinal sliding table (103), and the transverse sliding seat (105) is in driving connection with the transverse traveling module (104).

Description

Copper product low-hydrogen type gas shielded welding structure Technical Field The invention relates to the technical field of welding protection, in particular to a low-hydrogen gas shielded welding structure of a copper product. Background Copper products occupy irreplaceable positions in high-end manufacturing fields such as power transmission, electronic components, refrigeration equipment and the like by virtue of excellent electric conduction, heat conduction and corrosion resistance, the welding is used as a core process of copper product forming processing, the welding quality directly determines the service performance and service life of the copper products, and gas shielded welding is a main stream process of copper product welding at present. However, in practical application, aiming at a wide welding seam welding scene, the prior copper product gas shielded welding process is difficult to realize uniform coverage of the whole area of a molten pool area by shielding gas, the edge area of the molten pool is easy to contact air due to insufficient coverage of the shielding gas, so that hydrogen-induced pores are generated, the strength and the conductivity of the welding seam are greatly attenuated, meanwhile, when a welding head moves downwards to contact a workpiece for welding, the problem of supply delay of the shielding gas is often caused, and the molten pool is exposed to the air briefly at the initial stage of welding, so that the generation of hydrogen-induced defects is further aggravated. Disclosure of Invention According to the copper product low-hydrogen type gas shielded welding structure, the welding head, the gas circuit assembly and the hydraulic rod are integrally linked through the mounting plate, synchronous unlocking of the gas circuit and welding actions can be achieved without additional control elements, and the protective gas cover is swung by utilizing the driving force of movement of the welding head through linkage of the sealing assembly and the transverse sliding seat without additional driving parts. The copper product low-hydrogen gas shielded welding structure comprises a machine body, a mounting plate, a welding head, a gas guide assembly, a protective gas steel cylinder, two groups of sealing assemblies and a hydraulic rod, wherein a bearing bracket, a longitudinal traveling module, a longitudinal sliding table, a transverse traveling module and a transverse sliding seat are arranged on the machine body, the mounting plate is mounted on the transverse sliding seat, the welding head is mounted on one side of the mounting plate, the mounting plate is fixedly connected with the output end of the hydraulic rod, the gas guide assembly is communicated with the protective gas steel cylinder and is in linkage fit with the mounting plate, and the two groups of sealing assemblies are symmetrically arranged by taking the welding head as a symmetrical center and are respectively connected with the transverse sliding seat and the gas guide assembly and used for driving the gas guide assembly to swing. The invention further provides an improved scheme that the air guide assembly comprises two first air guide pipes, two second air guide pipes, a shunt pipe, a metal corrugated telescopic hose, two air branch pipes and two protective air covers, wherein one end of the metal corrugated telescopic hose is connected with a pressure reducer at an outlet of a protective air steel cylinder, the other end of the metal corrugated telescopic hose is arranged at the central position of the shunt pipe, the two first air guide pipes are respectively and fixedly arranged at two ends of the shunt pipe, and the second air guide pipes are in sliding fit with the inner wall of each first air guide pipe. As a further improvement scheme of the invention, the outer surfaces of the two second air guide pipes are respectively fixedly arranged on two sides of the mounting plate, and in an initial state, the end parts of the two second air guide pipes can shield the outlet of the shunt pipe. As a further improvement scheme of the invention, one ends of the two second air guide pipes far away from the shunt pipes are respectively communicated with the two air branch pipes, and the two protective air covers are respectively connected with one ends of the two air branch pipes far away from the second air guide pipes. As a further improvement scheme of the invention, the connection parts of the two second air guide pipes and the two air branch pipes are provided with rotary joints, the two rotary joints can realize non-blocking rotation at an angle, and the rotary joints are hermetically matched between the two second air guide pipes and the two air branch pipes. As a still further improvement scheme of the invention, each group of sealing components comprises a sealing box, a pressing plate, a pushing plate, a telescopic hose, a hollow cylinder and a swinging rod; One side of the push plate is fixedly con