Construction site steel structure welding device for constructional engineering

Abstract

The invention relates to the technical field of constructional engineering, and discloses a construction site steel structure welding device for constructional engineering, which comprises a base, the outer wall of the base is fixedly connected with the outer wall of a sliding table, the outer wall of the sliding table is fixedly connected with one end, close to the sliding table, of a top plate, and the bottom of the top plate is fixedly connected with the top of a welding gun. According to the angle welding device, the locking assembly is arranged, the rotary table is adjusted to the preset angle through the locking assembly and locked, the situation that a corresponding included angle cannot be kept due to thermal stress after angle welding of a steel structure is conducted is prevented, and the steel structure is stably kept at the preset angle; according to the construction site steel structure welding device, the steel structure is kept stable in the welding process and after welding, meanwhile, stable clamping force prevents the situation that due to the fact that the steel structure is long, the two sides fall down, the welding position deviates, and welding is not standard, and the construction site steel structure welding device used for constructional engineering can be normally used.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a steel structure welding device for a construction site of a construction engineering. Background Art

[0002] With the continuous development of the construction engineering field, in order to adapt to the development trend of the construction industry and improve the efficiency and quality of steel structure welding, steel structure welding equipment has come into being at construction sites. With the increasing requirements of modern buildings for structural strength and stability, steel structures are being used more and more widely in construction. Traditional welding methods are gradually unable to meet the needs of large-scale, high-quality steel structure welding.

[0003] A patent application with application number CN202410856737.7 discloses a steel structure welding device for construction sites used in construction projects, including a base, a shell installed on the top of the base, a welding mechanism arranged inside the shell, clamping mechanisms symmetrically arranged on the top of the base, circular holes are opened on the outer walls of the shell on both sides close to the two clamping mechanisms, and two auxiliary processing mechanisms are symmetrically arranged inside the shell.

[0004] However, when processing longer steel parts, the existing steel structure welding equipment will cause the welding point to tilt due to the steel's own gravity, resulting in non-standard steel structure welding. In addition, for angled welding, the stress generated after welding cannot completely maintain the corresponding angle, which limits the use of steel structure welding equipment at construction sites of construction projects. Summary of the invention

[0005] The object of the present invention is to provide a welding device for steel structures at construction sites used in construction projects, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device for steel structures at construction sites for construction engineering, comprising a base, the outer wall of the base is fixedly connected to the outer wall of the slide, the outer wall of the slide is fixedly connected to an end of the top plate close to the slide, the bottom of the top plate is fixedly connected to the top of the welding gun, and further comprising: A rotating mechanism, wherein the rotating mechanism comprises a support seat, the bottom of the support seat is fixedly connected to the surface of the base, the inner wall of the support seat is rotatably connected to the outer wall of the turntable through a bearing, a sliding groove is provided on the top of the turntable, a supporting mechanism is provided inside the sliding groove, a locking groove is provided on the outer wall of the turntable, the inner wall of the turntable is fixedly connected to the outer wall of the cylinder, and a clamping mechanism is provided on the inner wall of the turntable; The locking assembly is arranged inside the locking groove, and the locking assembly includes a fixing sleeve, the outer wall of the fixing sleeve is fixedly connected to the inner wall of the supporting seat, the inner wall of the fixing sleeve is slidably connected to the outer wall of the sliding rod one, the sliding rod one is fixedly connected to the outer wall of the top block near one end of the top block, and the outer wall of the sliding rod one is provided with a spring one, one end of the spring one is fixedly connected to the inner wall of the fixing sleeve, and the other end is fixedly connected to the outer wall of the top block, the inner wall of the top block is slidably connected to the outer wall of the second sliding rod, the outer wall of the second sliding rod is slidably connected to the inner wall of the locking rod, and the inner wall of the locking rod away from the side of the second sliding rod is fixedly connected to the outer wall of the anti-sliding block, and the number of the second sliding rods is two groups, and the two groups of the second sliding rods are symmetrically arranged on the inner wall of the top block with the center line of the top block as the symmetry axis, and a spring two is arranged inside the top block, and both ends of the second spring are fixedly connected to the outer walls of the two groups of second sliding rods.

[0007] According to the above technical solution, the clamping mechanism includes a support plate 1, an outer wall of the support plate 1 is hingedly connected to the inner wall of the turntable through a rotating shaft, an end of the support plate 1 away from the turntable is fixedly connected to the outer wall of a support block 1, an outer wall of the support block 1 is fixedly connected to an end of a limit plate close to the support block 1, an inner wall of the support block 1 is slidably connected to the outer wall of a support rod 1, and a spring 3 is provided on the inner wall of the support block 1, one end of the spring 3 is fixedly connected to the inner wall of the support block 1, and the other end is fixedly connected to the inner wall of the support rod 1.

[0008] According to the above technical solution, the outer wall of the support rod one away from the support block one is fixedly connected to the inner wall of the support plate two, a clamping assembly is arranged inside the support plate two, the outer wall of the support plate two is hingedly connected to the end of the hinge rod one close to the support plate two through a rotating shaft, a limiting assembly is arranged on the outer wall of the hinge rod one, the outer wall of the support plate two is fixedly connected to the end of the limiting rod close to the support plate two, the outer wall of the limiting rod is slidably connected to the inner wall of the limiting plate, and the end of the hinge rod one away from the support plate two is rotatably connected to the end of the clamping rod close to the hinge rod one through a rotating shaft.

[0009] According to the above technical solution, the clamping assembly includes a clamping block, the outer wall of the clamping block is slidably connected to the inner wall of the support plate 2, the outer wall of the clamping block is fixedly connected to the sliding rod 3 near one end of the clamping block, the outer wall of the sliding rod 3 is slidably connected to the inner wall of the support rod 1, the outer wall of the sliding rod 3 is provided with a spring 4, one end of the spring 4 is fixedly connected to the inner wall of the support rod 1, and the other end is fixedly connected to the outer wall of the clamping block.

[0010] According to the above technical solution, the limit assembly includes a connecting rod, an outer wall of the connecting rod close to the side of hinge rod one is hingedly connected to the inner wall of hinge rod one, the outer wall of the connecting rod is hingedly connected to the inner wall of hinge rod two, the outer wall of hinge rod two is slidingly connected to the inner wall of limit sleeve one, a spring five is arranged inside the limit sleeve one, one end of the spring five is fixedly connected to the inner wall of limit sleeve one, and the other end is fixedly connected to the outer wall of hinge rod two.

[0011] According to the above technical scheme, the supporting mechanism includes a sliding rod four, the bottom of the sliding rod four is fixedly connected to the output end of the cylinder, the outer wall of the sliding rod four is fixedly connected to the inner wall of the support rod two, the outer wall of the support rod two is slidably connected to the inner wall of the limit sleeve two, a spring six is ​​arranged inside the limit sleeve two, one end of the spring six is ​​fixedly connected to the inner wall of the limit sleeve two, and the other end is fixedly connected to the outer wall of the support rod two, the side of the limit sleeve two away from the support rod two is slidably connected to the outer wall of the hinged rod three, the end of the hinged rod three away from the limit sleeve two is hinged to the inner wall of the support plate one through a rotating shaft, the top of the sliding rod four is fixedly connected to the bottom of the support block two, and the outer wall of the support block two is provided with a supporting assembly.

[0012] According to the above technical scheme, the support assembly includes an articulated rod four, wherein one end of the articulated rod four is hingedly connected to the inner wall of the support block two near the support block, and the outer wall of the articulated rod four is slidably connected to the inner wall of the limit sleeve three away from the support block, and the outer wall of the limit sleeve three is hingedly connected to the inner wall of the turntable through a rotating shaft, and a spring seven is arranged inside the limit sleeve three, one end of the spring seven is fixedly connected to the inner wall of the limit sleeve three, and the other end is fixedly connected to the outer wall of the articulated rod four, and the number of the articulated rods four is two groups, and the two groups of articulated rods four are symmetrically arranged inside the limit sleeve three with the center line of the limit sleeve three as the symmetry axis, and the end of the articulated rod four away from the limit sleeve three is hinged to the bottom of the support block three through a articulated block, and the outer wall of the support block three is slidably connected to the sliding groove wall.

[0013] According to the above technical solution, there are two groups of rotating mechanisms, which are symmetrically arranged on both sides of the base surface with the center line of the base as the symmetry axis. There are four groups of clamping mechanisms, which are symmetrically arranged on both sides of the inner wall of the turntable with the center line of the base as the symmetry axis.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The construction site steel structure welding device used for construction engineering is provided with a locking component, through which the turntable is adjusted to a preset angle and locked to prevent the steel structure from being unable to maintain the corresponding angle due to thermal stress after angle welding, so that the steel structure can be stably maintained at the preset angle, so that the construction site steel structure welding device used for construction engineering can be used normally.

[0015] 2. The construction site steel structure welding device used for construction projects is provided with a clamping mechanism, which clamps the steel structure to keep it stable during and after welding. At the same time, the stable clamping force prevents the welding points from shifting due to falling on both sides of the steel structure due to its length, resulting in non-standard welding. The construction site steel structure welding device used for construction projects can be used normally.

[0016] 3. The construction site steel structure welding device used for construction engineering is provided with a limit assembly, which assists in clamping the steel structure material through the limit assembly and increases the clamping force of the clamping mechanism, so that the clamping force of the clamping mechanism on the steel structure material is stable, and the construction site steel structure welding device used for construction engineering can be used normally.

[0017] 4. The construction site steel structure welding device used for construction engineering is provided with a supporting mechanism, which supports the steel structure material to ensure that the clamping mechanism stably clamps the steel structure. At the same time, the workpiece is supported and squeezed to make the workpiece clamping more stable, thereby achieving better welding effect. The construction site steel structure welding device used for construction engineering can be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the present invention; Figure 3 It is a structural schematic diagram of the rotating mechanism of the present invention; Figure 4 It is a structural schematic diagram of the locking assembly of the present invention; Figure 5 It is a structural schematic diagram of the clamping mechanism of the present invention; Figure 6 It is a structural schematic diagram of the clamping assembly of the present invention and a cross-sectional view of the support rod 1 and the support plate 2; Figure 7 It is a cross-sectional view of a limiting sleeve 1 in the limiting assembly of the present invention; Figure 8 It is a cross-sectional view of the second limiting sleeve of the limiting assembly of the present invention; Fig. 9 It is a cross-sectional view of the limiting sleeve three in the support assembly of the present invention.

[0019] In the figure: 1, base; 2, slide; 3, top plate; 4, welding gun; 5, rotating mechanism; 501, support seat; 502, turntable; 503, sliding groove; 504, locking groove; 505, cylinder; 51, locking assembly; 511, fixing sleeve; 512, sliding rod 1; 513, top block; 514, spring 1; 515, sliding rod 2; 516, spring 2; 517, locking rod; 518, anti-sliding block; 6, clamping mechanism; 601, support plate 1; 602, support block 1; 603, limit plate; 604, support rod 1; 605, spring 3; 606, support plate 2; 6 07, hinged rod one; 608, clamping rod; 609, limit rod; 61, clamping assembly; 611, clamping block; 612, sliding rod three; 613, spring four; 62, limit assembly; 621, hinged rod two; 622, limit sleeve one; 623, spring five; 624, connecting rod; 7, supporting mechanism; 701, sliding rod four; 702, support rod two; 703, limit sleeve two; 704, support block two; 705, hinged rod three; 706, spring six; 71, supporting assembly; 711, hinged rod four; 712, limit sleeve three; 713, spring seven; 714, support block three. DETAILED DESCRIPTION

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

[0021] For example, see Figure 1-Figure 4 The present invention provides a technical solution: a steel structure welding device for a construction site of a construction project, comprising a base 1, an outer wall of the base 1 is fixedly connected to an outer wall of a slide 2, an outer wall of the slide 2 is fixedly connected to an end of a top plate 3 close to the slide 2, and a bottom of the top plate 3 is fixedly connected to a top of a welding gun 4, and further comprising: The rotating mechanism 5 includes a support seat 501, the bottom of the support seat 501 is fixedly connected to the surface of the base 1, the inner wall of the support seat 501 is rotatably connected to the outer wall of the turntable 502 through a bearing, a sliding groove 503 is provided on the top of the turntable 502, a supporting mechanism 7 is provided inside the sliding groove 503, a locking groove 504 is provided on the outer wall of the turntable 502, the inner wall of the turntable 502 is fixedly connected to the outer wall of the cylinder 505, and a clamping mechanism 6 is provided on the inner wall of the turntable 502; The locking assembly 51 is arranged inside the locking groove 504. The locking assembly 51 includes a fixing sleeve 511. The outer wall of the fixing sleeve 511 is fixedly connected to the inner wall of the support seat 501. The inner wall of the fixing sleeve 511 is slidably connected to the outer wall of the sliding rod 1 512. The sliding rod 1 512 is fixedly connected to the outer wall of the top block 513 at one end thereof. The outer wall of the sliding rod 1 512 is provided with a spring 1 514. One end of the spring 1 514 is fixedly connected to the inner wall of the fixing sleeve 511, and the other end is fixedly connected to the outer wall of the top block 513. The inner wall of the top block 513 is slidably connected to the outer wall of the sliding rod 2 515. The outer wall of the sliding rod 2 515 is slidably connected to the inner wall of the locking rod 517. The inner wall of the locking rod 517 away from the inner wall of the sliding rod 2 515 is connected to the outer wall of the anti-sliding block 518 The two sliding rods 515 are fixedly connected, and the two sliding rods 515 are symmetrically arranged on the inner wall of the top block 513 with the center line of the top block 513 as the symmetry axis. A spring 516 is arranged inside the top block 513, and both ends of the spring 516 are fixedly connected to the outer walls of the two sliding rods 515. The sliding rod 515 squeezes the top block 513 through the spring 1 514 and slides on the inclined surface of the locking groove 504, driving the sliding rod 515 to compress the spring 516 and slide on the inner wall of the top block 513. At the same time, the anti-sliding block 518 drives the locking rod 517 to descend through the sliding rod 515, contact the inner wall of the locking groove 504 and generate extrusion, so that the anti-sliding block 518 and the groove wall of the locking groove 504 generate friction, so that the turntable 502 and the support seat 501 are locked.

[0022] The working principle of this embodiment is as follows: when the steel structure welding device for construction engineering is put into use, two groups of steel structure materials are placed on the surface of the turntable 502, and the cylinder 505 is started. The output end of the cylinder 505 is driven to drop and drive the clamping mechanism 6 and the supporting mechanism 7 to clamp and support the steel structure materials. When the steel structure needs to be welded at an angle, the sliding rod 1 512 is pulled out to drive the top block 513 to compress the spring 1 514 and slide on the inner wall of the fixing sleeve 511. The sliding rod 2 515 is squeezed by the spring 2 516 to slide on the inner wall of the top block 513, and at the same time, the sliding rod 517 slides on the inner wall of the locking rod 517. The turning table 502 is unlocked and can rotate on the inner wall of the support seat 501 after the turning table 502 is adjusted to a suitable angle, and the sliding rod 512 is released, so that the locking rod 517 drives the anti-sliding plate 518 to lock the wall of the locking groove 504, and then the turntable 502 is fixed to the inner wall of the support seat 501, and the steel structure material is welded by the welding gun 4. After the welding is completed, the cylinder 505 is returned after the steel is cooled and released, so that the clamping mechanism 6 and the supporting mechanism 7 release the clamping and support of the steel structure material, and the processed steel is removed to wait for the next processing.

[0023] For example 2, please refer to Figure 5-Figure 7The present invention provides a technical solution: the clamping mechanism 6 includes a support plate 601, the outer wall of the support plate 601 is hingedly connected to the inner wall of the turntable 502 through a rotating shaft, the end of the support plate 601 away from the turntable 502 is fixedly connected to the outer wall of the support block 602, the outer wall of the support block 602 is fixedly connected to the end of the limit plate 603 close to the support block 602, the inner wall of the support block 602 is slidably connected to the outer wall of the support rod 604, the inner wall of the support block 602 is provided with a spring 3 605, one end of the spring 3 605 is fixedly connected to the inner wall of the support block 602, and the other end is fixedly connected to the inner wall of the support rod 604; The outer wall of the support rod 1 604 away from the support block 1 602 is fixedly connected to the inner wall of the support plate 2 606, a clamping assembly 61 is arranged inside the support plate 2 606, the outer wall of the support plate 2 606 is hingedly connected to the end of the hinge rod 1 607 close to the support plate 2 606 through a rotating shaft, a limiting assembly 62 is arranged on the outer wall of the hinge rod 1 607, the outer wall of the support plate 2 606 is fixedly connected to the end of the limiting rod 609 close to the support plate 2 606, the outer wall of the limiting rod 609 is slidably connected to the inner wall of the limiting plate 603, and the end of the hinge rod 1 607 away from the support plate 2 606 is rotatably connected to the end of the clamping rod 608 close to the hinge rod 1 607 through a rotating shaft; The clamping assembly 61 includes a clamping block 611, the outer wall of the clamping block 611 is slidably connected to the inner wall of the second support plate 606, the outer wall of the clamping block 611 is fixedly connected to one end of the sliding rod 3 612 close to the clamping block 611, the outer wall of the sliding rod 3 612 is slidably connected to the inner wall of the first support rod 604, and the outer wall of the sliding rod 3 612 is provided with a spring 4 613, one end of the spring 4 613 is fixedly connected to the inner wall of the first support rod 604, and the other end is fixedly connected to the outer wall of the clamping block 611; The limiting assembly 62 includes a connecting rod 624, an outer wall of the connecting rod 624 close to the hinged rod 1 607 is hinged to the inner wall of the hinged rod 1 607, an outer wall of the connecting rod 624 is hinged to the inner wall of the hinged rod 2 621, an outer wall of the hinged rod 2 621 is slidingly connected to the inner wall of the limiting sleeve 1 622, a spring 5 623 is arranged inside the limiting sleeve 1 622, one end of the spring 5 623 is fixedly connected to the inner wall of the limiting sleeve 1 622, and the other end is fixedly connected to the outer wall of the hinged rod 2 621.

[0024] The working principle of this embodiment is as follows: the support mechanism 7 is driven to descend by the cylinder 505, and the support plate 1 601 is hingedly connected to the inner wall of the turntable 502 to drive the clamping rod 608 to contact the outer wall of the steel structure material, and generate an extrusion force on the hinged rod 1 607, and the hinged rod 1 607 is opened, the clamping block 611 contacts the outer surface of the steel material, and compresses the spring four 613 to slide on the inner wall of the support rod 1 604, the outer wall of the limit sleeve 1 622 contacts the inner wall of the support plate 2 606 and slides on the inner wall of the support plate 2 606 until the hinged rod 1 607 is opened to the maximum, the support rod 1 604 compresses the spring three 605 to slide on the inner wall of the support block, and the support plate drives the limit rod 609 to slide on the inner wall of the limit plate 603 until the limit rod 609 contacts the outer wall of the support block 1 602, and supports the limit rod 609, and the clamping is completed.

[0025] For example 3, please refer to Figure 8-Figure 9 The present invention provides a technical solution: the support mechanism 7 includes a sliding rod 4 701, the bottom of the sliding rod 4 701 is fixedly connected to the output end of the cylinder 505, the outer wall of the sliding rod 4 701 is fixedly connected to the inner wall of the second support rod 702, the outer wall of the second support rod 702 is slidably connected to the inner wall of the second limiting sleeve 703, a spring 6 706 is arranged inside the second limiting sleeve 703, one end of the spring 6 706 is fixedly connected to the inner wall of the second limiting sleeve 703, and the other end is fixedly connected to the outer wall of the second support rod 702, the side of the second limiting sleeve 703 away from the second support rod 702 is slidably connected to the outer wall of the third hinge rod 705, the end of the third hinge rod 705 away from the second limiting sleeve 703 is hinged to the inner wall of the first support plate 601 through a rotating shaft, the top of the sliding rod 4 701 is fixedly connected to the bottom of the second support block 704, and the outer wall of the second support block 704 is provided with a support assembly 71; The support assembly 71 includes a hinge rod 4 711, and one end of the hinge rod 4 711 is hinged to the inner wall of the support block 2 704 near the support block 2 704, and the hinge rod 4 711 is slidably connected to the inner wall of the limit sleeve 3 712 away from the outer wall of the support block 1 602 side, and the outer wall of the limit sleeve 3 712 is hinged to the inner wall of the turntable 502 through a rotating shaft, and a spring 713 is arranged inside the limit sleeve 3 712, one end of the spring 713 is fixedly connected to the inner wall of the limit sleeve 3 712, and the other end is fixedly connected to the outer wall of the hinge rod 4 711, and the number of the hinge rod 4 711 is two groups, and the two groups of hinge rods 4 711 are symmetrically arranged inside the limit sleeve 3 712 with the center line of the limit sleeve 3 712 as the symmetry axis, and the end of the hinge rod 4 711 away from the limit sleeve 3 712 is hinged to the bottom of the support block 3 714 through a hinge block, and the outer wall of the support block 3 714 is slidably connected to the groove wall of the sliding groove 503; There are two groups of rotating mechanisms 5, which are symmetrically arranged on both sides of the surface of the base 1 with the center line of the base 1 as the symmetry axis. There are four groups of clamping mechanisms 6, which are symmetrically arranged on both sides of the inner wall of the turntable 502 with the center line of the base 1 as the symmetry axis.

[0026] The working principle of this embodiment is as follows: the sliding rod 4 701 is driven to descend by the cylinder 505, and the support rod 2 702 drives the articulated rod 3 705 to descend through the limit sleeve 2 703. Since the support plate 1 601 is hingedly connected to the inner wall of the turntable 502, the articulated rod 3 705 is driven to compress the spring 6 706 to slide on the inner wall of the limit sleeve 2 703, and the displacement of the support plate 1 601 is compensated until the clamping mechanism 6 clamps the workpiece. At the same time, the support block 2 704 drives the articulated rod 4 711 to descend. Since the limit sleeve 3 712 is rotatably connected to the inner wall of the sliding groove 503 for support, the articulated rod 4 711 compresses the spring 7 713 to slide on the inner wall of the limit sleeve 3 712, and drives the support block 3 714 to slide upward on the inner wall of the sliding groove 503 to support the steel.

[0027] 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 device for steel structures at construction sites for construction projects, comprising a base (1), the outer wall of the base (1) being fixedly connected to the outer wall of a slide (2), the outer wall of the slide (2) being fixedly connected to an end of a top plate (3) close to the slide (2), the bottom of the top plate (3) being fixedly connected to the top of a welding gun (4), characterized in that: Also includes: A rotating mechanism (5), the rotating mechanism (5) comprising a support seat (501), the bottom of the support seat (501) being fixedly connected to the surface of the base (1), the inner wall of the support seat (501) being rotatably connected to the outer wall of the turntable (502) via a bearing, the top of the turntable (502) being provided with a sliding groove (503), the interior of the sliding groove (503) being provided with a supporting mechanism (7), the outer wall of the turntable (502) being provided with a locking groove (504), the inner wall of the turntable (502) being fixedly connected to the outer wall of the cylinder (505), and the inner wall of the turntable (502) being provided with a clamping mechanism (6); A locking assembly (51), wherein the locking assembly (51) is arranged inside the locking groove (504), and the locking assembly (51) comprises a fixing sleeve (511), wherein the outer wall of the fixing sleeve (511) is fixedly connected to the inner wall of the support seat (501), and the inner wall of the fixing sleeve (511) is slidably connected to the outer wall of a sliding rod (512), and one end of the sliding rod (512) close to the top block (513) is fixedly connected to the outer wall of the top block (513), and the outer wall of the sliding rod (512) is provided with a spring (514), and one end of the spring (514) is fixedly connected to the inner wall of the fixing sleeve (511), and the other end is fixedly connected to the outer wall of the top block (513). The inner wall of the top block (513) is slidably connected to the outer wall of the second sliding rod (515), the outer wall of the second sliding rod (515) is slidably connected to the inner wall of the locking rod (517), the inner wall of the locking rod (517) away from the second sliding rod (515) is fixedly connected to the outer wall of the anti-sliding block (518), the number of the second sliding rod (515) is two groups, the two groups of the second sliding rod (515) are symmetrically arranged on the inner wall of the top block (513) with the center line of the top block (513) as the symmetry axis, the top block (513) is provided with a second spring (516), and both ends of the second spring (516) are fixedly connected to the outer walls of the two groups of second sliding rods (515).

2. A construction site steel structure welding device for construction engineering according to claim 1, characterized in that: The clamping mechanism (6) comprises a support plate 1 (601), the outer wall of the support plate 1 (601) is hingedly connected to the inner wall of the turntable (502) via a rotating shaft, the end of the support plate 1 (601) away from the turntable (502) is fixedly connected to the outer wall of the support block 1 (602), the outer wall of the support block 1 (602) is fixedly connected to the end of the limit plate (603) close to the support block 1 (602), the inner wall of the support block 1 (602) is slidably connected to the outer wall of the support rod 1 (604), and the inner wall of the support block 1 (602) is provided with a spring 3 (605), one end of the spring 3 (605) is fixedly connected to the inner wall of the support block 1 (602), and the other end is fixedly connected to the inner wall of the support rod 1 (604).

3. A construction site steel structure welding device for construction engineering according to claim 2, characterized in that: The outer wall of the support rod one (604) away from the support block one (602) is fixedly connected to the inner wall of the support plate two (606); a clamping assembly (61) is arranged inside the support plate two (606); the outer wall of the support plate two (606) is hingedly connected to the end of the hinge rod one (607) close to the support plate two (606) through a rotating shaft; a limiting assembly (62) is arranged on the outer wall of the hinge rod one (607); the outer wall of the support plate two (606) is fixedly connected to the end of the limiting rod (609) close to the support plate two (606); the outer wall of the limiting rod (609) is slidably connected to the inner wall of the limiting plate (603); the end of the hinge rod one (607) away from the support plate two (606) is rotatably connected to the end of the clamping rod (608) close to the hinge rod one (607) through a rotating shaft.

4. A construction site steel structure welding device for construction engineering according to claim 3, characterized in that: The clamping assembly (61) includes a clamping block (611), the outer wall of the clamping block (611) is slidably connected to the inner wall of the second support plate (606), the outer wall of the clamping block (611) is fixedly connected to one end of the sliding rod three (612) close to the clamping block (611), the outer wall of the sliding rod three (612) is slidably connected to the inner wall of the first support rod (604), the outer wall of the sliding rod three (612) is provided with a spring four (613), one end of the spring four (613) is fixedly connected to the inner wall of the first support rod (604), and the other end is fixedly connected to the outer wall of the clamping block (611).

5. A construction site steel structure welding device for construction engineering according to claim 3, characterized in that: The limit assembly (62) comprises a connecting rod (624), the outer wall of the connecting rod (624) close to the hinge rod one (607) is hingedly connected to the inner wall of the hinge rod one (607), the outer wall of the connecting rod (624) is hingedly connected to the inner wall of the hinge rod two (621), the outer wall of the hinge rod two (621) is slidably connected to the inner wall of the limit sleeve one (622), and a spring five (623) is arranged inside the limit sleeve one (622), one end of the spring five (623) is fixedly connected to the inner wall of the limit sleeve one (622), and the other end is fixedly connected to the outer wall of the hinge rod two (621).

6. A construction site steel structure welding device for construction engineering according to claim 1, characterized in that: The support mechanism (7) comprises a sliding rod four (701), the bottom of the sliding rod four (701) is fixedly connected to the output end of the cylinder (505), the outer wall of the sliding rod four (701) is fixedly connected to the inner wall of the supporting rod two (702), the outer wall of the supporting rod two (702) is slidably connected to the inner wall of the limiting sleeve two (703), and a spring six (706) is arranged inside the limiting sleeve two (703), and one end of the spring six (706) is fixedly connected to the inner wall of the limiting sleeve two (703). , and the other end is fixedly connected to the outer wall of support rod 2 (702); the side of the limiting sleeve 2 (703) away from the support rod 2 (702) is slidably connected to the outer wall of the hinge rod 3 (705); the end of the hinge rod 3 (705) away from the limiting sleeve 2 (703) is hinged to the inner wall of the support plate 1 (601) through a rotating shaft; the top of the sliding rod 4 (701) is fixedly connected to the bottom of the support block 2 (704); and the outer wall of the support block 2 (704) is provided with a support assembly (71).

7. A construction site steel structure welding device for construction engineering according to claim 6, characterized in that: The support assembly (71) includes a hinged rod four (711), wherein one end of the hinged rod four (711) close to the support block two (704) is hingedly connected to the inner wall of the support block two (704), and the hinged rod four (711) is slidably connected to the inner wall of the limit sleeve three (712) away from the outer wall of the support block one (602), and the outer wall of the limit sleeve three (712) is hingedly connected to the inner wall of the turntable (502) via a rotating shaft, and a spring seven (713) is arranged inside the limit sleeve three (712), and one end of the spring seven (713) is connected to the inner wall of the turntable (502). It is fixedly connected to the inner wall of the limiting sleeve three (712), and the other end is fixedly connected to the outer wall of the hinged rod four (711). The hinged rod four (711) is provided in two groups. The two groups of hinged rods four (711) are symmetrically arranged inside the limiting sleeve three (712) with the center line of the limiting sleeve three (712) as the symmetry axis. The hinged rod four (711) is hingedly connected to the bottom of the support block three (714) through a hinge block at one end away from the limiting sleeve three (712). The outer wall of the support block three (714) is slidably connected to the groove wall of the sliding groove (503).

8. A construction site steel structure welding device for construction engineering according to claim 1, characterized in that: The number of the rotating mechanisms (5) is two groups, and the two groups of the rotating mechanisms (5) are symmetrically arranged on both sides of the surface of the base (1) with the center line of the base (1) as the symmetry axis. The number of the clamping mechanisms (6) is four groups, and the four groups of the clamping mechanisms (6) are symmetrically arranged on both sides of the inner wall of the turntable (502) with the center line of the base (1) as the symmetry axis.

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