Submerged arc welding machine for straight seam welding of steel pipe

Abstract

The utility model relates to the technical field of steel pipe welding, in particular to a submerged arc welding machine for steel pipe straight seam welding, which comprises a steel pipe placing seat, a welding mechanism arranged on the rear side of the steel pipe placing seat, and a welding flux recovery mechanism comprising a recovery cover positioned on the upper side of the steel pipe placing seat. And a scraping plate for removing slag shells is fixed at the bottom of the inner wall of the recovery cover. A supporting plate in the welding mechanism drives a welding flux box, a welding gun and a welding flux recovery mechanism to move synchronously, slag shells formed by the welding flux are scraped in the moving process of a scraper, the procedure of independently cleaning the slag shells is omitted, the used welding flux is sucked into a recovery cover through a fan, then the used welding flux enters a processing box through a suction pipe, and the welding flux recovery efficiency is improved. Impurities in used welding flux are screened out through the filtering plate, the treated welding flux is pumped into the welding flux box through the discharging pipe by the conveying pump, synchronous circulating recycling of the welding flux is achieved, repeated conveying is avoided, and time is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe welding technical field especially is related to a kind of submerged arc welding machine of steel pipe straight seam welding. BACKGROUND

[0002] Straight seam steel pipe refers to the steel pipe formed by shearing, shaping and welding on steel plate or steel belt, and the weld is usually linear and located in the central position of the steel pipe, then the weld is welded by submerged arc welding, which is a welding method with arc combustion under the welding agent layer, and has inherent advantages such as stable welding quality, high welding productivity, no arc light and little smoke, etc.

[0003] The existing welding agent recovery technology is to collect and uniformly process the used welding agent, and then manually transport it to the production line for use. The repeated transportation is inconvenient, and part of the welding agent is melted and covered on the weld surface to form a slag shell, which needs to be cleaned from the weld surface by using additional tools, increasing the steel pipe welding processing time. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the above problems and provides a submerged arc welding machine for steel pipe straight seam welding.

[0005] The utility model realizes the above-mentioned purposes by the following technical solutions:

[0006] A submerged arc welding machine for steel pipe straight seam welding includes a steel pipe placing seat, a welding mechanism is arranged at the rear side of the steel pipe placing seat, and a welding agent recovery mechanism is further included.

[0007] The welding agent recovery mechanism includes a recovery cover, which is located on the upper side of the steel pipe placing seat. A scraper for removing slag shell is fixed to the inner wall bottom of the recovery cover. A fan is fixed to the inner wall top of the recovery cover. A treatment box is arranged at the rear side of the recovery cover. A suction pipe is fixed between the top of the recovery cover and the top of the treatment box. A filter plate is fixed in the treatment box. A delivery pump is arranged at the lower side of the filter plate. A discharge pipe is fixed to the discharge end of the delivery pump.

[0008] Preferably, the welding mechanism includes a base, which is located at the rear side of the steel pipe placing seat. A moving frame is slidably connected to the top of the base. A lead screw is threadedly connected to the bottom of the moving frame. A support plate is fixed to the front side of the moving frame. A welding agent box is fixed to the front side of the support plate. A welding gun is arranged at one side of the welding agent box. A solder tray is rotatably connected to the front side of the support plate.

[0009] Preferably, the lead screw is rotatably connected to the top of the base. A first motor is fixed to the input end of the lead screw. A second motor is fixed to the input end of the solder tray.

[0010] Preferably, a first connecting frame is fixed between the welding gun and the support plate, and the solder tray is located at one side of the top of the welding gun.

[0011] Preferably, the processing box is fixed at one side of the moving frame, and one end of the discharge pipe extends into the processing box and the other end of the discharge pipe extends into the flux box.

[0012] Preferably, the scraper is composed of two fixed ends and a scraping piece, and the two fixed ends are fixedly connected with the inner walls of the front and rear sides of the recovery cover.

[0013] Compared with the prior art, the beneficial effects are as follows: the flux box, the welding gun and the flux recovery mechanism are synchronously moved by the support plate in the welding mechanism, the slag crust formed by the flux in the moving process is scraped by the scraper, the process of separately cleaning the slag crust is saved, the used flux is sucked into the recovery cover by the fan, and then the used flux enters the processing box through the suction pipe, the impurities in the used flux are screened out by the filter plate, and the processed flux is sucked into the flux box through the discharge pipe by the conveying pump, so that the synchronous recycling and utilization of the flux are realized, repeated transportation is avoided, and time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 is a structure schematic view of the submerged arc welding machine for straight seam welding of steel pipes according to the present application;

[0016] Figure 2 is a sectional view of the submerged arc welding machine for straight seam welding of steel pipes according to the present application;

[0017] Figure 3 is a structure schematic view of the welding mechanism of the submerged arc welding machine for straight seam welding of steel pipes according to the present application;

[0018] Figure 4 is a structure schematic view of the flux recovery mechanism of the submerged arc welding machine for straight seam welding of steel pipes according to the present application;

[0019] Figure 5 is a structure schematic view of the scraper of the submerged arc welding machine for straight seam welding of steel pipes according to the present application.

[0020] The following is an explanation of the reference signs:

[0021] 1, steel pipe seat; 2, welding mechanism; 3, flux recovery mechanism; 201, base; 202, screw; 203, moving frame; 204, support plate; 205, flux box; 206, welding gun; 207, solder tray; 301, recovery cover; 302, scraper; 303, fan; 304, processing box; 305, suction pipe; 306, discharge pipe; 307, filter plate; 308, conveying pump. DETAILED DESCRIPTION

[0022] In the description of the utility model, it needs to explain, unless there is explicit provision and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected;Can be mechanical connection, can be electrical connection;Can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning of the utility model.

[0023] The utility model will be further described below in conjunction with the drawings:

[0024] As Figures 1-5 Indicated, a kind of steel pipe straight seam welding submerged arc welding machine, including steel pipe seat 1, steel pipe seat 1 rear side is equipped with welding mechanism 2, also include flux recovery mechanism 3.

[0025] In the embodiment: welding mechanism 2 includes base 201, base 201 is located in steel pipe seat 1 rear side, base 201 top is slidably connected with moving frame 203, moving frame 203 bottom is threadedly connected with screw 202, moving frame 203 front side is fixed with support plate 204, support plate 204 front side is fixed with flux box 205, flux box 205 side is equipped with welding gun 206, support plate 204 front side is rotatably connected with solder tray 207, screw 202 is rotatably connected in the top of base 201, screw 202 input end is fixedly provided with first motor, solder tray 207 input end is fixedly provided with second motor, welding gun 206 and support plate 204 between fixed first connecting frame, solder tray 207 is located in the top side of welding gun 206, recovery cover 301 and support plate 204 between fixed second connecting frame, moving frame 203 and support plate 204 are driven along both sides by first motor driving screw 202, in turn support plate 204 drives flux box 205, welding gun 206 and flux recovery mechanism 3 move, welding flux is accumulated between weld by flux box 205, welding flux is continuously introduced into welding gun 206 by second motor driving solder tray 207 rotation, in turn, welding flux and steel pipe weld are fused together by welding gun 206.

[0026] In the embodiment, the flux recovery mechanism 3 comprises a recovery cover 301 located on the upper side of the steel pipe placing seat 1, a scraper 302 for removing the slag shell is fixed to the inner wall bottom of the recovery cover 301, a fan 303 is fixed to the inner wall top of the recovery cover 301, a processing box 304 is arranged at the rear side of the recovery cover 301, a suction pipe 305 is fixed between the top of the recovery cover 301 and the top of the processing box 304, a filter plate 307 is fixed in the processing box 304, a conveying pump 308 is arranged at the lower side of the filter plate 307, a discharge pipe 306 is fixed to the discharge end of the conveying pump 308, the processing box 304 is fixed to one side of the moving frame 203, one end of the discharge pipe 306 extends into the processing box 304, the other end of the discharge pipe 306 extends into the flux box 205, the scraper 302 is composed of two fixed ends and a scraping piece, the two fixed ends are fixedly connected with the inner walls of the front and rear sides of the recovery cover 301 respectively, the recovery cover 301 and the scraper 302 are driven to move by the supporting plate 204, the slag shell formed by the flux is scraped off in the moving process by the scraper 302, the used flux is sucked into the recovery cover 301 by the fan 303, and then the used flux enters the processing box 304 through the suction pipe 305, the impurities in the used flux are screened out by the filter plate 307, and the processed flux is sucked into the flux box 205 through the discharge pipe 306 by the conveying pump 308.

[0027] Working principle: the steel pipe to be welded is placed on the top of the steel pipe placing seat 1, the first motor drives the lead screw 202 to drive the moving frame 203 and the supporting plate 204 to move from one side to the other side, then the supporting plate 204 drives the welding gun 206 to move to the other side through the first connecting frame, the flux box 205 accumulates the flux between the welds, the second motor drives the solder disc 207 to rotate so that the solder continuously enters the welding gun 206, then the welding gun 206 melts the solder and the steel pipe weld together, the melted flux forms a slag shell covering the surface of the weld, in this process, the supporting plate 204 simultaneously drives the recovery cover 301 to move to the other side through the second connecting frame, the recovery cover 301 drives the scraper 302 to scrape off the slag shell formed by the flux in the moving process, the used flux is sucked into the recovery cover 301 by the fan 303, then the used flux enters the processing box 304 through the suction pipe 305, the impurities in the used flux are screened out by the filter plate 307, and the processed flux is sucked into the flux box 205 through the discharge pipe 306 by the conveying pump 308, so that the synchronous recycling of the flux is formed.

[0028] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A submerged arc welding machine for straight seam welding of steel pipes, comprising a steel pipe placement seat (1), wherein a welding mechanism (2) is provided on the rear side of the steel pipe placement seat (1), characterized in that: It also includes a flux recycling facility (3); The flux recovery mechanism (3) includes a recovery cover (301), which is located on the upper side of the steel pipe placement seat (1). A scraper (302) for removing slag shell is fixed at the bottom of the inner wall of the recovery cover (301). A blower (303) is fixed at the top of the inner wall of the recovery cover (301). A processing box (304) is provided on the rear side of the recovery cover (301). A suction pipe (305) is fixed between the top of the recovery cover (301) and the top of the processing box (304). A filter plate (307) is fixed inside the processing box (304). A conveying pump (308) is provided on the lower side of the filter plate (307). A discharge pipe (306) is fixed at the discharge end of the conveying pump (308).

2. The submerged arc welding machine for straight seam welding of steel pipes according to claim 1, characterized in that: The welding mechanism (2) includes a base (201) located behind the steel pipe placement seat (1). A movable frame (203) is slidably connected to the top of the base (201). A lead screw (202) is threadedly connected to the bottom of the movable frame (203). A support plate (204) is fixed to the front of the movable frame (203). A flux box (205) is fixed to the front of the support plate (204). A welding gun (206) is provided on one side of the flux box (205). A solder tray (207) is rotatably connected to the front of the support plate (204).

3. The submerged arc welding machine for straight seam welding of steel pipes according to claim 2, characterized in that: The lead screw (202) is rotatably connected to the top of the base (201). A first motor is fixedly installed at the input end of the lead screw (202), and a second motor is fixedly installed at the input end of the solder tray (207).

4. The submerged arc welding machine for straight seam welding of steel pipes according to claim 2, characterized in that: A first connecting frame is fixed between the welding torch (206) and the support plate (204), the solder tray (207) is located on one side of the top of the welding torch (206), and a second connecting frame is fixed between the recovery cover (301) and the support plate (204).

5. The submerged arc welding machine for straight seam welding of steel pipes according to claim 2, characterized in that: The processing box (304) is fixed to one side of the movable frame (203), one end of the discharge pipe (306) extends into the processing box (304), and the other end of the discharge pipe (306) extends into the flux box (205).

6. The submerged arc welding machine for straight seam welding of steel pipes according to claim 1, characterized in that: The scraper (302) consists of two fixed ends and a scraper blade. The two fixed ends are respectively fixedly connected to the inner walls of the front and rear sides of the recycling hood (301).

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