Welding machine for welding seamless steel pipe

Abstract

The welding machine comprises a bottom plate, a fixing frame is fixed to the upper surface of the bottom plate, a linear moving module is fixed to the top wall of an inner cavity of the fixing frame, an electric push rod is fixed to the lower surface of the linear moving module, and a welding gun is fixed to the lower surface of a mounting plate. A fixing mechanism used for conveniently conducting alignment welding when the two seamless steel pipes are welded is arranged on the upper surface of the bottom plate and located in the fixing frame, and a smoke suction mechanism used for sucking, filtering and discharging smoke generated when the seamless steel pipes are welded is arranged on the upper surface of the fixing frame. According to the welding machine for welding the seamless steel pipes, the downward pressing U-shaped plates on the left side and the right side move downwards in the left supporting frame and the right supporting frame, the seamless steel pipes on the left side and the right side can be limited and fixed in the U-shaped containing grooves formed in the upper surfaces of the left containing base and the right containing base, the welding positions of the two seamless steel pipes can be aligned, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding machines, in particular to a welding machine for seamless steel pipe welding. Background Art

[0002] Seamless steel pipes are made of a whole piece of metal and have no seams on the surface. They are called seamless steel pipes. Seamless pipes are divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes and jacking pipes. A welding machine is needed when welding two seamless steel pipes.

[0003] When welding seamless steel pipes, welding machines in the prior art usually weld the opposite ends of the two steel pipes. Since the two steel pipes lack a limiting fixing structure during welding, the opposite ends are difficult to align, which increases the complexity of alignment and also affects the quality of welding. Therefore, a welding machine for seamless steel pipe welding is proposed, which can easily align the opposite ends of the two steel pipes and then weld them, thereby improving the quality of welding. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a welding machine for seamless steel pipe welding, which has the advantages of being able to conveniently align and weld the opposite ends of two steel pipes, thereby solving the problem that when welding the opposite ends of the two steel pipes, the opposite ends are difficult to align due to the lack of a limiting fixing structure when the two steel pipes are welded, which increases the complexity of the alignment and also affects the welding quality.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding machine for seamless steel pipe welding, comprising a bottom plate, a fixing frame is fixed on the upper surface of the bottom plate, a linear moving module is fixed on the top wall of the inner cavity of the fixing frame, an electric push rod is fixed on the lower surface of the linear moving module, a mounting plate is fixed on the outer side of the output shaft of the electric push rod, a welding gun is fixed on the lower surface of the mounting plate, a fixing mechanism for facilitating alignment welding of two seamless steel pipes during welding is provided on the upper surface of the bottom plate and located inside the fixing frame, and a smoke extraction mechanism for extracting, filtering and discharging smoke generated during welding of seamless steel pipes is provided on the upper surface of the fixing frame;

[0006] The fixing mechanism includes two placing seats fixed to the upper surface of the base plate by bolts and located inside the fixing frame, a supporting frame is fixed to the upper surface of the placing seat, a threaded opening is opened on the upper surface of the supporting frame, a threaded rod is connected to the internal thread of the threaded opening, a hand wheel is fixed to the top end of the threaded rod, a downward pressing U-shaped plate is rotatably connected to the bottom end of the threaded rod located inside the supporting frame through a bearing, a supporting telescopic rod is fixed to the top wall of the inner cavity of the supporting frame and the left and right connections located at the threaded opening, and the bottom end of the supporting telescopic rod is fixedly connected to the upper surface of the downward pressing U-shaped plate.

[0007] Furthermore, the linear motion module is located on the longitudinal center axis of the fixed frame, and the placement seats on the left and right sides are symmetrically distributed on the left and right sides of the longitudinal center axis of the bottom plate.

[0008] Furthermore, a U-shaped placement groove is provided on the upper surface of the placement seat and inside the support frame, and the U-shaped placement groove is located on the transverse center axis of the placement seat.

[0009] Furthermore, an anti-slip sleeve is fixed to the outer side of the hand wheel, and the anti-slip sleeve is a rubber sleeve.

[0010] Furthermore, the supporting telescopic rod comprises a first sliding rod, and a second sliding rod is slidably connected inside the first sliding rod.

[0011] Furthermore, the smoke extraction mechanism includes an exhaust fan fixed on the upper surface of the fixed frame, an air outlet pipe is fixed to the air outlet end of the exhaust fan, a filter cartridge is sealed and connected to the outer thread of the right end of the air outlet pipe, an activated carbon filter is fixed inside the filter cartridge, and a connecting assembly is provided on the right side of the mounting plate.

[0012] Furthermore, the connection assembly includes a smoking nozzle fixed on the right side of the mounting plate, and a movable tube is fixed to the air inlet end of the exhaust fan, and the bottom end of the movable tube is connected to the upper surface of the smoking nozzle.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The welding machine for seamless steel pipe welding has the left and right pressing U-shaped plates moving downward inside the left and right supporting frames, so that the left and right seamless steel pipes can be limited and fixed inside the U-shaped grooves opened on the upper surfaces of the left and right placing seats, so that the welding points of the two seamless steel pipes can be aligned, thereby improving the welding quality.

[0015] 2. The welding machine for seamless steel pipe welding can start the exhaust fan when welding the seamless steel pipe. The smoke generated during the welding of the seamless steel pipe flows into the interior of the filter cartridge through the smoking nozzle, the movable pipe and the air outlet pipe, and then is filtered through the activated carbon filter before being discharged, thereby improving the environmental performance of the welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the fixing mechanism of the utility model;

[0018] Figure 3 It is a schematic diagram of the smoking mechanism of the utility model.

[0019] In the figure: 1 bottom plate, 2 fixed frame, 3 linear moving module, 4 electric push rod, 5 mounting plate, 6 welding gun, 7 fixing mechanism, 701 placement seat, 702 support frame, 703 threaded mouth, 704 threaded rod, 705 hand wheel, 706 downward pressing U-shaped plate, 707 supporting telescopic rod, 8 smoking mechanism, 801 exhaust fan, 802 air outlet pipe, 803 filter cartridge, 804 activated carbon filter, 805 smoking nozzle, 806 movable pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1 A welding machine for seamless steel pipe welding in this embodiment includes a base plate 1, a fixing frame 2 is fixed on the upper surface of the base plate 1, a linear moving module 3 is fixed to the top wall of the inner cavity of the fixing frame 2, an electric push rod 4 is fixed to the lower surface of the linear moving module 3, a mounting plate 5 is fixed to the outer side of the output shaft of the electric push rod 4, a welding gun 6 is fixed to the lower surface of the mounting plate 5, a fixing mechanism 7 for facilitating alignment welding of two seamless steel pipes during welding is provided on the upper surface of the base plate 1 and located inside the fixing frame 2, the fixing mechanism 7 facilitates alignment welding of the two seamless steel pipes during welding and improves the welding quality, a smoke extraction mechanism 8 is provided on the upper surface of the fixing frame 2 for extracting, filtering and discharging the smoke generated during welding of the seamless steel pipe, and the smoke extraction mechanism 8 can improve the environmental protection performance of the welding machine.

[0022] See also Figure 2In order to facilitate the alignment welding of the two seamless steel pipes during welding, in this embodiment, the fixing mechanism 7 includes two placement seats 701 fixed to the upper surface of the bottom plate 1 by bolts and located inside the fixing frame 2. A support frame 702 is fixed on the upper surface of the placement seat 701. A threaded opening 703 is provided on the upper surface of the support frame 702. When welding the two seamless steel pipes, the two seamless steel pipes are respectively inserted from the opposite sides of the left and right support frames 702 and passed through the opposite sides of the left and right support frames 702 and placed inside the placement U-shaped grooves provided on the upper surfaces of the left and right placement seats 701. At this time, the opposite ends of the left and right seamless steel pipes can be brought together and aligned. The internal threads of the threaded opening 703 are connected with threaded rods 704. A hand wheel 705 is fixed to the top of the threaded rod 704. The bottom end of the threaded rod 704 and the support frame 70 2 is rotatably connected with a downward pressing U-shaped plate 706 through a bearing, and the top wall of the inner cavity of the support frame 702 and the left and right connections located at the threaded opening 703 are fixed with supporting telescopic rods 707, and the bottom ends of the supporting telescopic rods 707 are fixedly connected to the upper surface of the downward pressing U-shaped plate 706. The left and right hand wheels 705 are rotated, and then the left and right threaded rods 704 are driven to rotate and move downward inside the left and right threaded openings 703 respectively, and then the left and right downward pressing U-shaped plates 706 are driven to move downward inside the left and right support frames 702 and limit and fix the left and right seamless steel pipes inside the U-shaped grooves opened on the upper surfaces of the left and right placement seats 701, so that the welding parts of the two seamless steel pipes can be aligned. At this time, the electric push rod 4 can be started and the welding gun 6 can be driven to move downward and weld the two seamless steel pipes, thereby improving its practicality.

[0023] In this embodiment, the linear moving module 3 is located on the longitudinal center axis of the fixed frame 2, and the left and right side placement seats 701 are symmetrically distributed on the left and right sides of the longitudinal center axis of the base plate 1. A U-shaped placement groove is opened on the upper surface of the placement seat 701 and located inside the support frame 702. The placement U-shaped groove is located on the transverse center axis of the placement seat 701. An anti-slip sleeve is fixed to the outside of the handwheel 705, and the anti-slip sleeve is a rubber sleeve. The support telescopic rod 707 includes a first sliding rod, and the first sliding rod is internally slidably connected to a second sliding rod.

[0024] It should be noted that the linear moving module 3 can drive the welding gun 6 to adjust its welding position left and right. When the two seamless steel pipes are welded at one point on the upper side, the hand wheels 705 on the left and right sides can be rotated to make the two seamless steel pipes placed inside the U-shaped grooves on the left and right sides in a loose state, and then the seamless steel pipes can be rotated to weld other positions.

[0025] See also Figure 3In order to improve the environmental performance of the welding machine, in this embodiment, the smoke extraction mechanism 8 includes an exhaust fan 801 fixed on the upper surface of the fixing frame 2, an air outlet pipe 802 is fixed to the air outlet end of the exhaust fan 801, and a filter cartridge 803 is sealed and connected to the outer thread of the right end of the air outlet pipe 802. An activated carbon filter screen 804 is fixed inside the filter cartridge 803. A connecting component is provided on the right side of the mounting plate 5, which can extract and filter the smoke generated during welding.

[0026] In this embodiment, the connecting component includes a smoking nozzle 805 fixed to the right side of the mounting plate 5 , and a movable tube 806 is fixed to the air inlet end of the exhaust fan 801 , and the bottom end of the movable tube 806 is connected to the upper surface of the smoking nozzle 805 .

[0027] It should be noted that the exhaust fan 801 can be started when the seamless steel pipe is being welded, and the smoke generated during the welding of the seamless steel pipe flows into the interior of the filter cartridge 803 through the smoking nozzle 805, the movable tube 806 and the air outlet pipe 802, and then is filtered through the activated carbon filter 804 inside the filter cartridge 803 before being discharged, thereby improving the environmental performance of the welding machine.

[0028] The working principle of the above embodiment is:

[0029] (1) When welding two seamless steel pipes, the two seamless steel pipes are respectively inserted from the opposite sides of the left and right side support frames 702 and passed through the opposite sides of the left and right side support frames 702 and placed inside the U-shaped grooves opened on the upper surfaces of the left and right side placement seats 701. At this time, the opposite ends of the left and right seamless steel pipes can be aligned together, and then the left and right hand wheels 705 are rotated, and then the left and right threaded rods 704 are driven to rotate and move downward inside the left and right threaded openings 703 respectively, and then the left and right pressing U-shaped plates 706 are driven to move downward inside the left and right side support frames 702 and limit and fix the left and right seamless steel pipes inside the U-shaped grooves opened on the upper surfaces of the left and right side placement seats 701, so that the welding points of the two seamless steel pipes can be aligned. At this time, the electric push rod 4 can be started to drive the welding gun 6 to move downward and weld the two seamless steel pipes, thereby improving its practicality.

[0030] (2) The linear moving module 3 can drive the welding gun 6 to adjust its welding position left and right. When the two seamless steel pipes are welded at one point on the upper side, the hand wheels 705 on the left and right sides can be rotated to make the two seamless steel pipes placed inside the U-shaped grooves on the left and right sides in a loose state, and then the seamless steel pipes can be rotated to weld other positions. When the seamless steel pipes are welded, the exhaust fan 801 can be started. The smoke generated during the welding of the seamless steel pipes flows through the smoking nozzle 805, the movable pipe 806 and the air outlet pipe 802 to the inside of the filter cartridge 803, and then is filtered through the activated carbon filter 804 inside the filter cartridge 803 before being discharged, thereby improving the environmental performance of the welding machine.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding machine for seamless steel pipe welding, comprising a bottom plate (1), characterized in that: A fixing frame (2) is fixed on the upper surface of the bottom plate (1), a linear moving module (3) is fixed on the top wall of the inner cavity of the fixing frame (2), an electric push rod (4) is fixed on the lower surface of the linear moving module (3), a mounting plate (5) is fixed on the outer side of the output shaft of the electric push rod (4), a welding gun (6) is fixed on the lower surface of the mounting plate (5), a fixing mechanism (7) for facilitating alignment welding of two seamless steel pipes during welding is provided on the upper surface of the bottom plate (1) and located inside the fixing frame (2), and a smoke extraction mechanism (8) for extracting, filtering and discharging smoke generated by the seamless steel pipes during welding is provided on the upper surface of the fixing frame (2); The fixing mechanism (7) comprises two placement seats (701) fixed to the upper surface of the base plate (1) by bolts and located inside the fixing frame (2); a support frame (702) is fixed to the upper surface of the placement seat (701); a threaded opening (703) is provided on the upper surface of the support frame (702); a threaded rod (704) is connected to the inner thread of the threaded opening (703); a hand wheel (705) is fixed to the top of the threaded rod (704); a downward pressing U-shaped plate (706) is rotatably connected to the bottom end of the threaded rod (704) and located inside the support frame (702) through a bearing; a supporting telescopic rod (707) is fixed to the top wall of the inner cavity of the support frame (702) and located on the left and right connections of the threaded opening (703); and the bottom end of the supporting telescopic rod (707) is fixedly connected to the upper surface of the downward pressing U-shaped plate (706).

2. A welding machine for seamless steel pipe welding according to claim 1, characterized in that: The linear motion module (3) is located on the longitudinal center axis of the fixed frame (2), and the left and right placement seats (701) are symmetrically distributed on the left and right sides of the longitudinal center axis of the bottom plate (1).

3. A welding machine for seamless steel pipe welding according to claim 1, characterized in that: A U-shaped placement groove is provided on the upper surface of the placement seat (701) and located inside the support frame (702), and the U-shaped placement groove is located on the transverse central axis of the placement seat (701).

4. A welding machine for seamless steel pipe welding according to claim 1, characterized in that: An anti-slip sleeve is fixed to the outer side of the hand wheel (705), and the anti-slip sleeve is a rubber sleeve.

5. The welding machine for seamless steel pipe welding according to claim 1, characterized in that: The supporting telescopic rod (707) comprises a first sliding rod, and a second sliding rod is slidably connected inside the first sliding rod.

6. A welding machine for seamless steel pipe welding according to claim 1, characterized in that: The smoke extraction mechanism (8) comprises an exhaust fan (801) fixed on the upper surface of the fixing frame (2); an exhaust pipe (802) is fixed to the air outlet end of the exhaust fan (801); a filter cartridge (803) is threadedly and sealedly connected to the outer side of the right end of the air outlet pipe (802); an activated carbon filter screen (804) is fixed inside the filter cartridge (803); and a connecting component is provided on the right side of the mounting plate (5).

7. A welding machine for seamless steel pipe welding according to claim 6, characterized in that: The connection assembly comprises a smoking nozzle (805) fixed on the right side of the mounting plate (5); a movable tube (806) is fixed to the air inlet end of the exhaust fan (801); and the bottom end of the movable tube (806) is connected to the upper surface of the smoking nozzle (805).

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