CN115709323A - Welding process of high-strength steel structure - Google Patents

Abstract

The invention discloses a high-strength steel structure welding process, which relates to the field of welding technology. Firstly, two pipe fitting steel structures are placed on arc-shaped support plates of a welding machine, and then a telescoping rod is started to drive the support mechanism to move to the inner wall of the pipe fittings. Drive the cylinder three, push the rubber seat to fix the pipe fittings from the inside, and push the two pipe fittings inward to merge together, then drive the cylinder one to drive the movable plate one and the arc clamp two down, and the arc clamp two clamps the pipe from the outside At the same time, cylinder two drives movable plate two to drive arc clamp three to cooperate with arc clamp one to clamp the pipe fittings; and the welding mechanism is located between the pipe fittings. In this application, the arrangement of the welding machine facilitates the fixed welding of the steel structure, and the arrangement of the structure facilitates the welding of pipe fittings with different diameters.

Description

A welding process for high-strength steel structure

technical field

The invention relates to the field of welding technology, in particular to a welding process for high-strength steel structures.

Background technique

Pipelines are special equipment used to transport dangerous media, and are widely used in petroleum, chemical, electric power, construction and other industries. With the development of my country's national economy, the demand for pipelines continues to increase, and the requirements for construction quality are also getting higher and higher. Among them, high-strength pipeline welding is an extremely important part of pipeline production and installation.

Patent No. 2020111516673 discloses a large-diameter, large-thickness, high-strength steel cylinder welding process. Welders are arranged at equal intervals on the circumference of the weld and work in the same direction, avoiding the deformation of the cylinder caused by stress concentration during the welding process, ensuring structural accuracy, effectively ensuring the flatness and verticality of the flange of the cylinder, and ensuring the accuracy of the components. This structure also has the following defects, which is not convenient for welding different pipe fittings, resulting in poor applicability.

Contents of the invention

The purpose of the present invention is to provide a welding process for high-strength steel structures, which solves the following technical problem: it is inconvenient to weld different pipe fittings, resulting in poor applicability.

The purpose of the present invention can be achieved through the following technical solutions:

A welding process for high-strength steel structures, comprising the following steps:

Step 1. First place the steel structure of the two pipe fittings on the arc-shaped support plate of the welding machine, then start the telescopic rod to drive the support mechanism to move to the inner wall of the pipe fittings, and then drive the cylinder three to push the rubber seat to fix the pipe fittings from the inside, and push the two pipe fittings are merged together inwardly;

Step 2, then drive the cylinder 1 to drive the movable plate 1 and the arc clamp 2 to descend, the arc clamp 2 clamps the pipe from the outside, and the cylinder 2 drives the movable plate 2 to drive the arc clamp 3 to cooperate with the arc clamp 1 to hold the pipe clamped; and the welding mechanism is between the pipes;

Step 3: Start the driving motor, drive the slider to slide on the arc-shaped slide rail, and weld the weld seam between the two pipe fittings through the welding gun, welding half a circle first; then loosen the arc-shaped clamp, start the motor to drive The supporting mechanism rotates, and then drives the pipe fittings to rotate half a circle for welding.

As a further solution of the present invention: the welding machine includes a bracket one, an arc-shaped support plate is fixedly installed at the center of the top of the bracket one, and a bracket two is provided on one side of the top of the bracket one, and the bracket two is L Type structure, cylinder one is vertically installed on the cylinder two, movable plate one is fixedly installed on the piston rod of the cylinder one, and a plurality of arc clips two are equidistantly installed on the bottom of the movable plate one; the movable A welding mechanism is fixedly installed at the center of plate one;

Both sides of the support one are connected to the sliding plate through telescopic rods, a motor is fixedly installed on the sliding plate, and a support mechanism is fixedly installed on the output shaft of the motor, and the support mechanism is used for supporting the inner wall of the steel pipe.

As a further solution of the present invention: the support mechanism includes a support rod, a plurality of cylinders three are equidistantly installed on the outer peripheral surface of the support rod, and a push block is fixedly installed on the piston rod of the cylinder three, and the push block A movable rod two is movably connected, the end of the movable rod two is movably connected with a rubber seat, and the rubber seat is also provided with a movable rod one, and the movable rod one is rotatably connected with a support rod.

As a further solution of the present invention: the welding mechanism includes an arc-shaped plate fixedly installed on the movable plate one, an arc-shaped slide rail is fixedly installed on the arc-shaped plate, and teeth are provided on the surface of the arc-shaped slide rail , a slider is slidably connected to the arc-shaped slide rail, a drive motor is fixedly installed on one side of the slider, and a gear is fixedly installed on the output shaft of the drive motor, and the gear is meshed with the teeth. An electric telescopic rod is fixedly mounted on the slider, and a welding gun is fixedly mounted on the electric telescopic rod.

As a further solution of the present invention: a fixing plate is fixedly installed on the top of the bracket one, and a plurality of arc clips one are fixedly installed on the fixing plate.

As a further solution of the present invention: the support 2 is also fixedly mounted with the cylinder 2, the piston rod of the cylinder 2 is fixedly mounted with the movable plate 2, and the movable plate 2 is fixedly mounted with a plurality of arc clips 3, The third arc clip is arranged parallel to the first arc clip, and the third arc clip is arranged parallel to the second arc clip.

As a further solution of the present invention: the bottom of the support one is fixedly equipped with a jacking mechanism, the jacking mechanism includes a cylinder four fixedly installed on the support one, and a moving plate is fixedly installed on the piston rod of the cylinder four, The four corners of the moving plate are all provided with movable support rods, and the top of the movable support rods is fixedly equipped with limit rods, and the limit rods are located on both sides of the arc-shaped support plate.

Beneficial effects of the present invention:

In this application, the arrangement of the welding machine facilitates the fixed welding of the steel structure, and the arrangement of the structure facilitates the welding of pipe fittings with different diameters.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the whole structure schematic diagram of support mechanism of the present invention;

Fig. 3 is a side view structural representation of the welding mechanism of the present invention;

Fig. 4 is a schematic diagram of the overall structure of the jacking mechanism of the present invention.

Among the figure: 1, bracket one; 2, fixed plate; 3, arc clip one; 4, arc clip two; 5, movable plate one; 6, cylinder one; 7, bracket two; 8, cylinder two; 9, movable plate two; 10, arc clip three; 11, supporting mechanism; 12, motor; 13, sliding plate; 14, telescoping rod; 15, arc supporting plate; Support rod; 112, cylinder three; 113, movable rod one; 114, movable rod two; 115, push block; 116, rubber seat; 161, curved plate; 162, curved slide rail; 163, slide block; Welding gun; 165, drive motor; 166, electric telescopic rod; 171, moving plate; 172, four cylinders; 173, movable support rod; 174, limit rod.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to Figures 1-4, the present invention is a welding process for high-strength steel structures, mainly used for welding high-strength pipe fittings, including the following steps:

Step 1. First place the two pipe fittings on the arc-shaped support plate 15 of the welding machine, then start the telescopic rod 14 to drive the support mechanism 11 to move to the inner wall of the pipe fittings, and then drive the cylinder three 112 to push the rubber seat 116 to fix the pipe fittings from the inside, and then Push the two fittings inward to merge together;

Step 2, then drive cylinder 1 6 to drive movable plate 1 5 and arc clip 2 4 to descend, and arc clip 2 4 clamps the pipe from the outside, while cylinder 2 8 drives movable plate 2 9 to drive arc clip 3 10 and The arc clip-3 cooperates to clamp the pipe fittings; and the welding mechanism is between the pipe fittings;

Step 3: start the driving motor 165, drive the slider 163 to slide on the arc slide rail 162, and weld the weld seam between the two pipe fittings through the welding gun 164, welding half a circle first; then loosen the arc clamp , start the motor 12 to drive the support mechanism 11 to rotate, and then drive the pipe to rotate half a circle for welding.

The top center of the support one 1 is fixedly equipped with an arc support plate 15, and the top side of the support one 1 is provided with a support two 7, and the support two 7 is an L-shaped structure, and the top of the support one 1 The rotary motor is fixedly installed, and the output shaft of the rotary motor is fixedly equipped with a bracket two 7, which is convenient to drive the bracket two 7 to rotate, and is convenient for placing pipe fittings. The cylinder one 6 is vertically installed on the cylinder two 8, and the cylinder one 6 A movable plate-5 is fixedly installed on the piston rod, and a plurality of arc clamps 24 are equidistantly installed at the bottom of the movable plate-5; a welding mechanism 16 is fixedly installed at the center of the movable plate-5;

Both sides of described support one 1 are all connected with sliding plate 13 by telescopic rod 14, and motor 12 is fixedly installed on described sliding plate 13, and support mechanism 11 is fixedly installed on the output shaft of described motor 12, and described support mechanism 11 is used for supporting the inner wall of the steel pipe, and both sides of the device are provided with supporting mechanisms 11 (not shown in the figure), which are used for welding two pipe fittings.

The support mechanism 11 includes a support rod 111, a plurality of cylinders three 112 are equidistantly installed on the outer peripheral surface of the support rod 111, and a push block 115 is fixedly installed on the piston rod of the cylinder three 112, and the push block 115 A movable rod two 114 is movably connected, the end of the movable rod two 114 is movably connected with a rubber seat 116, and the rubber seat 116 is also provided with a movable rod one 113, and the movable rod one 113 is rotationally connected with the support rod 111 , to support it. The drive cylinder 3 112 pushes the push block 115 to move, and the push block 115 pushes the rubber seat 116 through the movable rod 2 114 to fix the pipe fittings from the inside. Drive the pipe fittings to rotate for welding.

The welding mechanism 16 includes an arc-shaped plate 161 fixedly installed on the movable plate-5, an arc-shaped slide rail 162 is fixedly installed on the arc-shaped plate 161, and teeth are provided on the surface of the arc-shaped slide rail 162, A slide block 163 is slidably connected to the arc-shaped slide rail 162, a drive motor 165 is fixedly mounted on one side of the slide block 163, and a gear is fixedly mounted on the output shaft of the drive motor 165, and the gear and teeth Mesh connection, the electric telescopic rod 166 is fixedly installed on the slider 163, the welding gun 164 is fixedly installed on the electric telescopic rod 166, the driving motor 165 is started, and the gear is driven to rotate, and the gear is meshed with the teeth to drive the sliding The block 163 slides on the arc slide rail 162, welds the pipe fittings by the welding snorkel 164, and drives the electric telescopic rod 166 at the same time, drives the welding snatch 164 to elongate, and is convenient to weld the pipe fittings of different diameters.

A fixed plate 2 is fixedly installed on the top of the bracket 1, and a plurality of arc clips 1 are fixedly installed on the fixed plate 2. Also fixedly installed with cylinder two 8 on described support two 7, movable plate two 9 is fixedly installed on the piston rod of described cylinder two 8, and a plurality of arc clamps three 10 are fixedly installed on described movable plate two 9, so The third arc clip 10 is arranged parallel to the first arc clip 3, and the third arc clip 10 is arranged parallel to the second arc clip 4. Through the setting of multiple arc-shaped clamps, it is convenient to fix the pipe fittings in many ways, and the fixing effect is better, avoiding the shaking of the pipe fittings during the welding process, and at the same time, it is convenient to weld pipe fittings of different diameters.

The bottom of the support one 1 is fixedly equipped with a jacking mechanism 17, and the jacking mechanism 17 includes a cylinder four 172 fixedly mounted on the support one 1, and a moving plate 171 is fixedly installed on the piston rod of the cylinder four 172, The four corners of the moving plate 171 are all provided with movable support rods 173 , and the top of the movable support rods 173 is fixed with a limit rod 174 , and the limit rods 174 are located on both sides of the arc-shaped support plate 15 . Start the cylinder four 172, drive the moving plate 171 to move, and then push the stop rod 174 up and down through the movable support rod 173, which is convenient for pipe fittings of different diameters.

The working principle of the present invention: first place two pipe fittings on the arc-shaped support plate 15, then start the telescopic rod 14 to drive the support mechanism 11 to move to the inner wall of the pipe fittings, and then drive the cylinder three 112, and the push block 115 pushes the rubber through the movable rod two 114 The seat 116 fixes the pipes from the inside, and then pushes the two pipes inwardly to merge together;

Then drive cylinder one 6 to drive movable plate one 5 and arc clamp two 4 to descend, and arc clamp two 4 clamps the pipe from the outside, while cylinder two 8 drives movable plate two 9 to drive arc clamp three 10 and arc clamp -3 fits to clamp the pipe fittings; and the welding mechanism is between the pipe fittings;

Start the driving motor 165, drive the slider 163 to slide on the arc slide rail 162, and weld the weld seam between the two pipe fittings through the welding gun 164, welding half a circle first; then loosen the arc clamp and start the motor 12 drives the supporting mechanism 11 to rotate, and then drives the pipe fitting to rotate half a circle for welding.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (7)

1. The welding process of the high-strength steel structure is characterized by comprising the following steps of:

firstly, placing two pipe fitting steel structures on an arc-shaped support plate (15) of a welding machine, starting a telescopic rod (14) to drive a support mechanism (11) to move towards the inner wall of a pipe fitting, then driving a third air cylinder (112), pushing a rubber seat (116) to fix the pipe fitting from the inside, and pushing the two pipe fittings to be combined together inwards;

secondly, driving a first air cylinder (6) to drive a first movable plate (5) and a second arc-shaped clamp (4) to descend, clamping the pipe fitting from the outside by the second arc-shaped clamp (4), and simultaneously driving a second movable plate (9) to drive a third arc-shaped clamp (10) to be matched with the first arc-shaped clamp (3) to clamp the pipe fitting by the second air cylinder (8); and the welding mechanism is located between the pipe fittings;

step three, starting a driving motor (165) to drive a sliding block (163) to slide on an arc-shaped sliding rail (162), welding the welding seams between the two pipe fittings through a welding gun (164), and welding half a circle; then the arc-shaped clamp is released, the starting motor (12) drives the supporting mechanism (11) to rotate, and further drives the pipe fitting to rotate for a half circle for welding.

2. The welding process of the high-strength steel structure according to claim 1, characterized in that the welding machine comprises a first support (1), an arc-shaped support plate (15) is fixedly installed at the center of the top of the first support (1), a second support (7) is arranged on one side of the top of the first support (1), the second support (7) is of an L-shaped structure, a first air cylinder (6) is vertically installed on the second air cylinder (8), a first movable plate (5) is fixedly installed on a piston rod of the first air cylinder (6), and a plurality of second arc-shaped clamps (4) are installed at the bottom of the first movable plate (5) at equal intervals; a welding mechanism (16) is fixedly arranged at the center of the movable plate I (5);

the two sides of the first support (1) are connected with a sliding plate (13) through telescopic rods (14), a motor (12) is fixedly mounted on the sliding plate (13), a supporting mechanism (11) is fixedly mounted on an output shaft of the motor (12), and the supporting mechanism (11) is used for supporting the inner wall of the steel pipe.

3. The welding process of a high-strength steel structure according to claim 2, characterized in that the supporting mechanism (11) comprises a supporting rod (111), a plurality of cylinders three (112) are equidistantly installed on the outer peripheral surface of the supporting rod (111), a push block (115) is fixedly installed on a piston rod of the cylinders three (112), the push block (115) is movably connected with a movable rod two (114), the end part of the movable rod two (114) is movably connected with a rubber seat (116), a movable rod one (113) is further arranged on the rubber seat (116), and the movable rod one (113) is rotatably connected with the supporting rod (111).

4. The welding process of a high strength steel structure, according to claim 2, characterized in that, welding mechanism (16) includes arc (161) of fixed mounting on fly leaf (5), fixed mounting has arc slide rail (162) on arc (161), the surface of arc slide rail (162) is provided with tooth, sliding connection has slider (163) on arc slide rail (162), one side fixed mounting of slider (163) has driving motor (165), fixed mounting has the gear on the output shaft of driving motor (165), the gear is connected with the tooth meshing, fixed mounting has electric telescopic handle (166) on slider (163), fixed mounting has the welding to rob (164) on electric telescopic handle (166).

5. The welding process of the high-strength steel structure as claimed in claim 2, wherein a fixing plate (2) is fixedly installed at the top of the first bracket (1), and a plurality of first arc-shaped clamps (3) are fixedly installed on the fixing plate (2).

6. The welding process of a high-strength steel structure according to claim 5, wherein a second air cylinder (8) is further fixedly mounted on the second support (7), a second movable plate (9) is fixedly mounted on a piston rod of the second air cylinder (8), a plurality of third arc-shaped clamps (10) are fixedly mounted on the second movable plate (9), the third arc-shaped clamps (10) are arranged in parallel with the first arc-shaped clamps (3), and the third arc-shaped clamps (10) are arranged in parallel with the second arc-shaped clamps (4).

7. The welding process of a high-strength steel structure according to claim 2, wherein a jacking mechanism (17) is fixedly installed at the bottom of the first support (1), the jacking mechanism (17) comprises a cylinder four (172) fixedly installed on the first support (1), a moving plate (171) is fixedly installed on a piston rod of the cylinder four (172), and four corners of the moving plate (171) are provided with movable plates

A movable supporting rod (173), a limiting rod (174) is fixedly arranged at the top of the movable supporting rod (173),

the limiting rods (174) are located on two sides of the arc-shaped supporting plate (15).

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