A steel structure welding apparatus

Abstract

The application is suitable for the technical field of welding equipment, and provides a steel structure welding equipment, which comprises a base mechanism and two positioning mechanisms in opposite sliding cooperation, the base mechanism is provided with a base piece and a driving piece, and the positioning mechanism comprises a lifting sliding piece and opposite sliding cooperation upper and lower positioning pieces. The driving piece drives an L-shaped push plate through a hydraulic telescopic cylinder, drives two positioning mechanisms to move synchronously towards or away from each other through a rotating arm, and realizes butt joint of steel members; meanwhile, a sliding ball slides along an inclined surface of a right trapezoidal plate, drives a supporting seat to lift and drop, and ensures that two welding end faces are at the same horizontal height. The upper and lower positioning pieces drive the arc-shaped grooves on the rotating ring to cooperate with the sliding rods through the clutch motors, and realize synchronous clamping of the V-shaped clamps. The application has high positioning precision and good synchronism, and is suitable for positioning of welding of steel members with various cross sections.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically, to a steel structure welding equipment. Background Technology

[0002] Steel structure welding is widely used in construction, bridges, shipbuilding, and machinery manufacturing. During the welding process of steel structural components, pre-welding positioning and clamping are crucial steps affecting welding quality and efficiency. Traditional steel structure welding equipment typically uses manual or semi-automatic methods to position and clamp steel components. Operators need to use clamps, shims, or manual adjustment devices to adjust the relative positions of the two workpieces to be welded, ensuring their mating ends are aligned.

[0003] Currently, the aforementioned traditional methods have the following technical problems when performing positioning operations on the end faces of steel structures to be welded:

[0004] Existing welding positioning devices are typically complex in structure, have numerous driving components, and struggle to ensure synchronization. In particular, when two steel components to be welded need to be joined simultaneously and their end faces are at the same horizontal level, existing devices often require separate lifting mechanisms to adjust the height of the workpieces on both sides. This not only increases equipment costs and control difficulty but also makes it easy for misalignment due to asynchrony or adjustment errors to affect welding quality. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a steel structure welding equipment that can drive an L-shaped push plate via a hydraulic telescopic cylinder of a drive component. This push plate, through a rotating arm, causes the irregularly shaped plates of two positioning mechanisms to move synchronously towards or away from each other, achieving synchronous docking of two steel components to be welded. In conjunction with this, a sliding ball slides along the inclined surface of a right-angled trapezoidal plate, causing the support seat to rise and fall, ensuring that the end faces of the two steel components to be welded are at the same horizontal height and accurately aligned, effectively improving the positioning accuracy and docking quality before welding.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A steel structure welding device includes a base mechanism and two positioning mechanisms that are slidably fitted on the base mechanism. The base mechanism includes a base component and a driving component mounted on the base component. The positioning mechanisms include a lifting sliding component that is slidably fitted on the base component and an upper positioning component and a lower positioning component that are slidably fitted on the lifting sliding component. The base component includes a base plate, a vertical plate fixed to the top of the base plate, two symmetrically arranged right-angled trapezoidal plates fixed to the top of the vertical plate, and an H-shaped base plate fixed to one side of the vertical plate below the two right-angled trapezoidal plates. The lifting sliding component includes a sliding fit... Above the H-shaped base plate is an irregularly shaped plate. A U-shaped horizontal plate is fixed to one side of the irregularly shaped plate, and a U-shaped vertical plate is fixed to the top of the irregularly shaped plate. A first hinge seat is slidably fitted inside the U-shaped vertical plate, and a hinge arm is hinged inside the first hinge seat. A second hinge seat is slidably fitted inside the U-shaped horizontal plate and hinged to the hinge arm. An extension rod is fixed to one side of the second hinge seat, and a slider is fixed to the end of the extension rod and slidably fitted on the inclined surface of the right-angled trapezoidal plate. A support seat is fixed to the top of the second hinge seat and slidably fitted to the upper and lower positioning parts. A return spring is fixed between the irregularly shaped plate and the second hinge seat.

[0008] The invention is further configured such that: a guide bar is fixed on one side of the irregular plate below the U-shaped horizontal plate, which is slidably engaged with the second hinge seat, and a reset spring is sleeved on the guide bar; a limiting horizontal groove is provided on one side of the vertical plate between the right-angled trapezoidal plate and the H-shaped base plate, which is slidably engaged with the U-shaped horizontal plate; a vertical baffle is fixed on the top of the H-shaped base plate; and a limiting round rod is fixed on one side of the vertical baffle, which is slidably engaged with the irregular plate.

[0009] The invention is further configured as follows: a controller is fixed to one side of the base plate, an L-shaped support plate is fixed to one side of the H-shaped base plate, and a hydraulic telescopic cylinder electrically connected to the controller is fixed to one outer side of the L-shaped support plate; the driving component includes an L-shaped push plate, a fixed sleeve that is sleeved and fixed to the telescopic end of the hydraulic telescopic cylinder is fixed to one outer side of the L-shaped push plate, two symmetrically arranged first pins are fixed to the bottom of the L-shaped push plate, rotating arms are rotatably fitted to the circumferential sides of the two first pins, and pin holes are penetrated through the tops of the two rotating arms; a sliding round rod that is slidably fitted to the L-shaped push plate is fixed to the inner side of the L-shaped support plate; and a second pin that is rotatably fitted to the pin holes is fixed to the bottom of the irregular plate.

[0010] The invention is further configured such that: four spaced first guide vertical rods are fixed on the top of the support base; a motor mounting plate is fixed on the top of the support base; a brake motor electrically connected to the controller is fixed on one side of the motor mounting plate; and a drive gear is fixed on the output shaft of the brake motor; a second guide vertical rod that slides through the support base is fixed on the top of the irregular plate.

[0011] The invention is further configured such that: a positioning ring is fixed on one side of the support base, and a rotating cylinder is rotatably fitted at the end of the positioning ring via a bearing; a rotating ring is fixed on the inner wall of the rotating cylinder; two symmetrically arranged arc-shaped grooves are opened through the end of the rotating ring, the two arc-shaped grooves being the first arc-shaped groove and the second arc-shaped groove, respectively; and a gear ring that meshes with the drive gear is fixed on the outer circumferential side of the rotating cylinder.

[0012] The present invention is further configured such that: the upper positioning member includes an upper positioning plate that slides through and is slidably fitted on four first guide vertical rods, a first sliding rod that slides and is slidably fitted on one side of the upper positioning plate with one of the arc-shaped grooves, and a first V-shaped clamping plate that is fixed on the top of the upper positioning plate.

[0013] The present invention is further configured such that: the lower positioning member includes a lower positioning plate that slides through and is slidably fitted on four first guide vertical rods; a second sliding rod that slides and is slidably fitted with another arc-shaped groove is fixed on one side of the lower positioning plate; and two second V-shaped clamping plates that are spaced apart are fixed on the top of the lower positioning plate, and the overall length of the first V-shaped clamping plate is less than the interval between the two second V-shaped clamping plates.

[0014] The advantages of this invention are: 1. This invention drives the L-shaped push plate through the hydraulic telescopic cylinder of the drive component, and drives the irregular plates of the two positioning mechanisms to move synchronously towards or away from each other through the rotating arm, so as to realize the synchronous docking of the two steel components to be welded. In this way, the sliding ball slides along the inclined surface of the right-angled trapezoidal plate, driving the support seat to rise and fall, ensuring that the end faces of the two steel components to be welded are at the same horizontal height and accurately aligned, effectively improving the positioning accuracy and docking quality before welding.

[0015] 2. This invention drives the rotating ring to rotate via a brake motor, and utilizes the cooperation of the arc groove and the slide rod to achieve synchronous opposite movement of the upper and lower positioning plates, thereby clamping the steel component in a three-sided V-shape. The clamping force is uniform and stable, and the brake motor has a built-in brake mechanism that can automatically lock, ensuring that the steel component does not shift or shake during the welding process. It is suitable for welding steel components with various cross-sectional shapes.

[0016] 3. This invention utilizes a lifting sliding component to achieve smooth lifting through a structure such as a hinged arm, a return spring, and a guide bar. It has good overall linkage, stable and reliable equipment operation, and facilitates its later maintenance. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a steel structure welding equipment according to the present invention.

[0018] Figure 2 This is a schematic diagram of the base mechanism of the present invention.

[0019] Figure 3 This is a schematic diagram of the positioning mechanism of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the base component of the present invention.

[0021] Figure 5 This is a schematic diagram of the structure of the driving component of the present invention.

[0022] Figure 6 This is a schematic diagram of the lifting sliding component of the present invention.

[0023] Figure 7 For the present invention Figure 6 A magnified structural diagram of point A in the middle.

[0024] Figure 8 This is a three-dimensional structural diagram of the lifting sliding component of the present invention.

[0025] Figure 9 For the present invention Figure 8 The left view.

[0026] Figure 10 This is a schematic diagram of the positioning component of the present invention.

[0027] Figure 11 This is a schematic diagram of the positioning component of the present invention.

[0028] In the diagram: 1. Base mechanism; 2. Positioning mechanism; 3. Base component; 4. Drive component; 5. Lifting sliding component; 6. Upper positioning component; 7. Lower positioning component; 301. Base plate; 302. Vertical plate; 303. Right-angled trapezoidal plate; 304. H-shaped base plate; 305. Limiting horizontal groove; 306. Vertical baffle; 307. Limiting round rod; 308. Controller; 309. L-shaped support plate; 310. Hydraulic telescopic cylinder; 311. Sliding round rod; 401. L-shaped push plate; 402. Fixed sleeve; 403. First pin; 404. Rotating arm; 405. Pin hole; 501. Irregularly shaped plate; 502. U-shaped horizontal plate; 503. U-shaped vertical plate; 504. 505. First hinge seat; 506. Hinge arm; 507. Second hinge seat; 508. Extension rod; 509. Sliding ball; 510. Support seat; 511. Return spring; 512. Guide crossbar; 513. Second pin; 514. First guide vertical rod; 515. Motor mounting plate; 516. Brake motor; 517. Drive gear; 518. Second guide vertical rod; 519. Positioning ring; 520. Rotating cylinder; 521. Rotating ring; 522. Arc groove; 523. Gear ring; 604. Upper positioning plate; 605. First slide rod; 606. First V-shaped clamp; 707. Lower positioning plate; 708. Second slide rod; 709. Second V-shaped clamp. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0032] Example 1, please refer to Figures 1-11 The present invention provides the following technical solution: a steel structure welding equipment, specifically, comprising a base mechanism 1 and two positioning mechanisms 2 that are relatively slidably engaged on the base mechanism 1. The base mechanism 1 includes a base component 3 and a driving component 4 disposed on the base component 3. The positioning mechanism 2 includes a lifting sliding component 5 that is slidably engaged on the base component 3 and an upper positioning component 6 and a lower positioning component 7 that are relatively slidably engaged on the lifting sliding component 5. The base component 3 includes a base plate 301, a vertical plate 302 fixed to the top of the base plate 301, two symmetrically arranged right-angled trapezoidal plates 303 fixed to the top of the vertical plate 302, and an H-shaped base plate 304 fixed to one side of the vertical plate 302 below the two right-angled trapezoidal plates 303. The lifting sliding component 5 includes components that are slidably engaged above the H-shaped base plate 304. The irregular plate 501 has a U-shaped horizontal plate 502 fixed on one side and a U-shaped vertical plate 503 fixed on the top. A first hinge seat 504 is slidably fitted inside the U-shaped vertical plate 503. A hinge arm 505 is hinged inside the first hinge seat 504. A second hinge seat 506 is slidably fitted inside the U-shaped horizontal plate 502 and hinged to the hinge arm 505. An extension rod 507 is fixed on one side of the second hinge seat 506. A ball 508 is fixed at the end of the extension rod 507 and slidably fitted on the inclined surface of the right-angled trapezoidal plate 303. A support seat 509 is fixed at the top of the second hinge seat 506 and slidably fitted to the upper positioning member 6 and the lower positioning member 7. A return spring 510 is fixed between the irregular plate 501 and the second hinge seat 506.

[0033] Furthermore, a guide crossbar 511, which is slidably engaged with the second hinge seat 506, is fixed on one side of the irregular plate 501 below the U-shaped horizontal plate 502, and a return spring 510 is sleeved on the guide crossbar 511; a limiting cross groove 305, which is slidably engaged with the U-shaped horizontal plate 502, is provided on one side of the vertical plate 302 between the right-angled trapezoidal plate 303 and the H-shaped base plate 304; a vertical baffle 306 is fixed on the top of the H-shaped base plate 304; a limiting round rod 307, which is slidably engaged with the irregular plate 501, is fixed on one side of the vertical baffle 306; a controller 308 is fixed on one side of the base plate 301; and an L-shaped support plate 309 is fixed on one side of the H-shaped base plate 304. A hydraulic telescopic cylinder 310 electrically connected to the controller 308 is fixed to one outer side; the driving component 4 includes an L-shaped push plate 401, a fixed sleeve 402 fixed to the telescopic end of the hydraulic telescopic cylinder 310 is fixed to one outer side of the L-shaped push plate 401, two symmetrically arranged first pins 403 are fixed to the bottom of the L-shaped push plate 401, and rotating arms 404 are rotatably engaged on the circumferential sides of the two first pins 403, and pin holes 405 are opened through the top of the two rotating arms 404; a sliding round rod 311 that is slidably engaged with the L-shaped push plate 401 is fixed to the inner side of the L-shaped support plate 309; a second pin 512 that is rotatably engaged with the pin hole 405 is fixed to the bottom of the irregular plate 501.

[0034] The specific application of this embodiment is as follows: In the initial state, the two positioning mechanisms 2 are arranged opposite to each other on both sides of the base mechanism 1, the return spring 510 is in a naturally extended state, the slider 508 is located at the lower position of the inclined surface of the right-angled trapezoidal plate 303, and the upper positioning member 6 and the lower positioning member 7 are in an open state, which facilitates the placement of the steel components to be welded in the later stage.

[0035] Later, when butt welding of the steel components to be welded is required, the hydraulic telescopic cylinder 310 is activated by the controller 308. Its telescopic end pulls or pushes the fixed sleeve 402 and the L-shaped push plate 401 to move along the sliding round rod 311. During the movement, the L-shaped push plate 401 drives the rotating arm 404 to rotate through the first pin 403. The rotating arm 404 then pulls or pushes the irregular plate 501 to slide above the H-shaped base plate 304 along the limiting round rod 307 through the engagement of the pin hole 405 and the second pin 512. Since the irregular plates 501 of the two positioning mechanisms 2 are respectively connected to the same L-shaped push plate 401 through their respective rotating arms 404, the two positioning mechanisms 2 can move synchronously towards or away from each other.

[0036] During the synchronous, opposite translation of the two irregularly shaped plates 501, the slider 508, fixed to the end of the extension rod 507, slides along the inclined surface of the right-angled trapezoidal plate 303. Since the right-angled trapezoidal plate 303 is fixed to the top of the vertical plate 302, when the slider 508 slides on the inclined surface, it drives the extension rod 507 and the second hinge seat 506 to slide within the U-shaped horizontal plate 502 along the direction of the guide bar 511. This sliding action simultaneously pushes the hinge arm 505 to rotate around the first hinge seat 504 and the second hinge seat 506, and through the elastic potential energy of the return spring 510 for fine-tuning compensation, it drives the support seat 509 to smoothly move up and down along the direction of the second guide bar 517, effectively avoiding mechanical jamming and deadlock during the translation of the irregularly shaped plates 501 and the up and down movement of the slider 508 along the inclined surface of the right-angled trapezoidal plate 303. This completes the process of positioning the two steel components to be welded together. Since the sliders 508 of the two positioning mechanisms 2 are located on the corresponding inclined surfaces of the symmetrically arranged right-angled trapezoidal plates 303, the lifting and lowering movements of the two positioning mechanisms 2 are consistent until the welding end faces of the two steel components contact each other and are pressed together, completing the final docking positioning. At this point, since the end faces of the two steel components are at the same horizontal level and accurately aligned, subsequent welding operations can be carried out.

[0037] Example 2, please refer to Figures 1-11 This second embodiment is an improvement on the first embodiment as follows: Specifically, four spaced first guide vertical rods 513 are fixed to the top of the support base 509; a motor mounting plate 514 is fixed to the top of the support base 509; a brake motor 515 electrically connected to the controller 308 is fixed to one side of the motor mounting plate 514; a drive gear 516 is fixed to the output shaft of the brake motor 515; a second guide vertical rod 517 that slides through the support base 509 is fixed to the top of the irregular plate 501; a positioning ring 518 is fixed to one side of the support base 509; a rotating cylinder 519 is rotatably fitted to the end of the positioning ring 518 via a bearing; a rotating ring 520 is fixed to the inner wall of the rotating cylinder 519; two symmetrically arranged arc-shaped grooves 521 are opened through the end of the rotating ring 520, the two arc-shaped grooves 521 being the first arc-shaped groove and... The second arc-shaped groove, the outer peripheral side of the rotating cylinder 519 is fixed with a gear ring 522 that meshes with the drive gear 516; the upper positioning member 6 includes an upper positioning plate 601 that slides through and is slidably fitted on four first guide vertical rods 513, a first slide rod 602 that slides through and is slidably fitted on one side of the upper positioning plate 601, and a first V-shaped clamping plate 603 that is fixed on the top of the upper positioning plate 601; the lower positioning member 7 includes a lower positioning plate 701 that slides through and is slidably fitted on four first guide vertical rods 513, a second slide rod 702 that slides through and is slidably fitted on one side of the lower positioning plate 701, and two spaced second V-shaped clamping plates 703 that are fixed on the top of the lower positioning plate 701, and the overall length of the first V-shaped clamping plate 603 is less than the interval between the two second V-shaped clamping plates 703.

[0038] The specific application of this embodiment 2 is as follows: In the initial state, the two positioning mechanisms 2 are arranged opposite each other on both sides of the base mechanism 1, the return spring 510 is in a naturally extended state, and the slider 508 is located at the lowest position of the inclined surface of the right-angled trapezoidal plate 303. The upper positioning member 6 and the lower positioning member 7 are in an open state; specifically, the brake motor 515 is in a de-energized state, the upper positioning plate 601 and the lower positioning plate 701 are far apart from each other on the four first guide vertical rods 513, and a sufficient opening gap is formed between the first V-shaped clamping plate 603 and the second V-shaped clamping plate 703, so that the operator can put the two steel components to be welded into the two positioning mechanisms 2 respectively through the external lifting equipment (the external lifting equipment is existing equipment, not shown in the figure, and will not be described in detail here).

[0039] After the operator places the two steel components to be welded into the two positioning mechanisms 2 using external hoisting equipment, the lower surface of the steel components is placed in the V-groove of the second V-shaped clamp 703 of the lower positioning member 7, while the upper surface of the steel components is located below the first V-shaped clamp 603 of the upper positioning member 6. Since the upper positioning member 6 is in a higher position (away from the lower positioning member 7) at this time, the steel components can be placed freely without interference. After the two steel components to be welded are placed into the two positioning mechanisms 2, the operator (or automatically controlled by the controller 308) starts the brake motor 515. The output shaft of the brake motor 515 drives the drive gear 516 to rotate. The drive gear 516, through meshing with the gear ring 522, drives the rotating cylinder 519 to rotate around its own axis under the bearing support of the positioning ring 518. When the rotating cylinder 519 rotates, the rotating ring 520 fixed on its inner wall rotates synchronously. During the synchronous rotation, two symmetrically arranged arc-shaped grooves 521 are opened on the end face of the rotating ring 520, namely the first arc-shaped groove and the second arc-shaped groove. The first slide rod 602 is slidably fitted in the first arc-shaped groove and fixedly connected to the upper positioning plate 601; the second slide rod 702 is slidably fitted in the second arc-shaped groove and fixedly connected to the lower positioning plate 701. When the rotating ring 520 rotates, the trajectory of the two arc-shaped grooves 521 forces the first slide rod 602 and the second slide rod 702 to move towards each other along the direction of the first guide vertical rod 513 (i.e., the first slide rod 602 moves downward and the second slide rod 702 moves upward). The radius of curvature of the arc-shaped grooves 521 is gradually designed to ensure that the clamping force increases smoothly with the increase of the rotation angle, preventing local clamping overload, thereby driving the upper positioning plate 601 and the lower positioning plate 701 to move closer to each other on the four first guide vertical rods 513. When the upper positioning plate 601 moves downward, the first V-shaped clamping plate 603 fixed at its top descends accordingly, pressing the upper surface of the steel component from above. When the lower positioning plate 701 moves upward, the two spaced-apart second V-shaped clamping plates 703 fixed at its top rise accordingly, supporting and positioning the lower surface of the steel component from below. Since the overall length of the first V-shaped clamping plate 603 is less than the interval between the two second V-shaped clamping plates 703, the first V-shaped clamping plate 603 can smoothly embed between the two second V-shaped clamping plates 703 without interference, thereby achieving three-sided V-shaped clamping of the steel component (one point at the top and two points at the bottom), ensuring that the steel component will not shift or shake during welding.

[0040] Once clamped in place, the brake mechanism built into the brake motor 515 automatically locks, maintaining a constant clamping force and ensuring the stability of the steel component's position during welding. Simultaneously, following the operating procedure of Embodiment 1, the hydraulic telescopic cylinder 310 is activated via the controller 308. Its telescopic end pulls the L-shaped push plate 401 to move, which in turn drives the shaped plates 501 of the two positioning mechanisms 2 to slide synchronously towards each other via the rotating arm 404. During the translation of the shaped plate 501, the sliding ball 508 rises along the inclined surface of the right-angled trapezoidal plate 303. Through the linkage of the extension rod 507, the second hinge seat 506, the hinge arm 505, and the first hinge seat 504, it pushes the support seat 509 upward along the second guide vertical rod 517. The synchronous operation of the two positioning mechanisms 2 gradually brings the weldable end faces of the two steel components closer together and ultimately to the same horizontal level, facilitating subsequent welding operations on the two joined steel components.

[0041] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0042] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0043] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0045] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A steel structure welding equipment, comprising a base mechanism (1) and two positioning mechanisms (2) that are relatively slidably fitted on the base mechanism (1), characterized in that: The base mechanism (1) includes a base component (3) and a drive component (4) disposed on the base component (3). The positioning mechanism (2) includes a lifting sliding component (5) that is slidably engaged on the base component (3) and an upper positioning component (6) and a lower positioning component (7) that are relatively slidably engaged on the lifting sliding component (5). The base component (3) includes a base plate (301), a vertical plate (302) is fixed to the top of the base plate (301), two right-angled trapezoidal plates (303) are fixed to the top of the vertical plate (302), and an H-shaped base plate (304) is fixed to one side of the vertical plate (302) below the two right-angled trapezoidal plates (303). The lifting sliding component (5) includes a shaped plate (501) slidably fitted above the H-shaped base plate (304), a U-shaped horizontal plate (502) fixed on one side of the shaped plate (501), a U-shaped vertical plate (503) fixed on the top of the shaped plate (501), a first hinge seat (504) slidably fitted inside the U-shaped vertical plate (503), a hinge arm (505) hinged inside the first hinge seat (504), and a hinge arm (505) slidably fitted inside the U-shaped horizontal plate (502). 05) The second hinge seat (506) is hinged. An extension rod (507) is fixed on one side of the second hinge seat (506). A ball (508) is fixed at the end of the extension rod (507) and slides on the inclined surface of the right-angled trapezoidal plate (303). A support seat (509) is fixed at the top of the second hinge seat (506) and slides with the upper positioning member (6) and the lower positioning member (7). A return spring (510) is fixed between the irregular plate (501) and the second hinge seat (506).

2. The steel structure welding equipment according to claim 1, characterized in that: The irregular plate (501) is fixed on one side below the U-shaped horizontal plate (502) with a guide bar (511) that slides through and engages with the second hinge seat (506), and a return spring (510) is sleeved on the guide bar (511). The vertical plate (302) has a limiting transverse groove (305) that slides through between the right-angled trapezoidal plate (303) and the H-shaped base plate (304) on one side, and a vertical baffle (306) is fixed on the top of the H-shaped base plate (304). A limiting round rod (307) that slides through the irregular plate (501) is fixed on one side of the vertical baffle (306).

3. The steel structure welding equipment according to claim 2, characterized in that: A controller (308) is fixed on one side of the base plate (301), an L-shaped support plate (309) is fixed on one side of the H-shaped base plate (304), and a hydraulic telescopic cylinder (310) electrically connected to the controller (308) is fixed on one outer side of the L-shaped support plate (309).

4. The steel structure welding equipment according to claim 3, characterized in that: The driving component (4) includes an L-shaped push plate (401), a fixed sleeve (402) fixed on one outer side of the L-shaped push plate (401) and sleeved and fixed to the telescopic end of the hydraulic telescopic cylinder (310), two first pins (403) symmetrically arranged fixed on the outer bottom of the L-shaped push plate (401), and rotating arms (404) rotatably engaged on the circumferential sides of the two first pins (403), and pin holes (405) are opened through the top of the two rotating arms (404). The inner side of the L-shaped support plate (309) is fixed with a sliding round rod (311) that slides through and slides with the L-shaped push plate (401). The bottom of the irregular plate (501) is fixed with a second pin (512) that rotates with the pin hole (405).

5. The steel structure welding equipment according to claim 4, characterized in that: The support base (509) has four spaced first guide rods (513) fixed on its top, and a motor mounting plate (514) is fixed on its top. A brake motor (515) electrically connected to the controller (308) is fixed on one side of the motor mounting plate (514), and a drive gear (516) is fixed on the output shaft of the brake motor (515). The top of the irregular plate (501) is fixed with a second guide rod (517) that slides through and engages with the support base (509).

6. The steel structure welding equipment according to claim 5, characterized in that: A positioning ring (518) is fixed on one side of the support base (509). The end of the positioning ring (518) is rotatably fitted with a rotating cylinder (519) through a bearing. A rotating ring (520) is fixed on the inner wall of the rotating cylinder (519).

7. A steel structure welding equipment according to claim 6, characterized in that: The rotating ring (520) has two symmetrically arranged arc-shaped grooves (521) through its end. The two arc-shaped grooves (521) are the first arc-shaped groove and the second arc-shaped groove, respectively. A gear ring (522) that meshes with the drive gear (516) is fixed on the outer peripheral side of the rotating cylinder (519).

8. A steel structure welding equipment according to claim 7, characterized in that: The upper positioning component (6) includes an upper positioning plate (601) that slides through and is slidably fitted on four first guide vertical rods (513). A first slide rod (602) that slides and fits with one of the arc grooves (521) is fixed on one side of the upper positioning plate (601). A first V-shaped clamp (603) is fixed on the top of the upper positioning plate (601).

9. A steel structure welding equipment according to claim 6, characterized in that: The lower positioning component (7) includes a lower positioning plate (701) that slides through and is slidably fitted on four first guide vertical rods (513). A second slide rod (702) that slides and fits with another arc groove (521) is fixed on one side of the lower positioning plate (701). Two second V-shaped clamps (703) that are spaced apart are fixed on the top of the lower positioning plate (701), and the overall length of the first V-shaped clamp (603) is less than the distance between the two second V-shaped clamps (703).

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