CN220296270U - Novel H-shaped steel welding device - Google Patents

Abstract

The utility model discloses a novel H-shaped steel welding device, which comprises a base, wherein a second motor is arranged in the base, the output end of the second motor is fixedly connected with a second screw rod, and the middle part of the second screw rod is penetrated by and in threaded connection with two third sliding blocks and two fourth sliding blocks; two rotating rods which are symmetrically arranged are rotationally connected to the lifting seat, one end of each rotating rod, which is far away from the lifting seat, is rotationally connected with a fourth sliding block, a turnover mechanism is arranged on the lifting seat, and the lifting seat turns the web of the H-shaped steel by 180 degrees through the turnover mechanism and drives the web of the H-shaped steel to move up and down; the clamping devices are respectively arranged at two sides of the lifting seat and fix the flange plate of the H-shaped steel through the second clamping blocks; the clamping devices on two sides are respectively and fixedly connected with the third sliding block through connecting rods. According to the utility model, when the turnover mechanism drives the H-shaped steel to rotate, the clamping device does not interfere the turnover of the H-shaped steel, so that the turnover of the H-shaped steel is realized, the operation is simple and convenient, and the welding machine efficiency of the H-shaped steel is improved.

Description

Novel H-shaped steel welding device

Technical Field

The utility model relates to the technical field of H-shaped steel welding, in particular to a novel H-shaped steel welding device.

Background

The H-shaped steel is an economic section high-efficiency section with more optimized section area distribution and more reasonable strength-to-weight ratio, and the section is named as the English letter H. Because each part of the H-shaped steel is arranged at right angles, the H-shaped steel has the advantages of strong bending resistance, simple construction, cost saving, light structure weight and the like in all directions, and has been widely used.

The web of the traditional H-shaped steel is required to be welded with the flange plate, and the existing H-shaped steel can be welded, but has a plurality of defects: the upper surface and the lower surface of the web are inconvenient to weld, and the web needs to be overturned manually in the welding process, so that the welding efficiency is slower. For example, chinese patent publication No. CN 217832448U discloses a novel H-shaped steel welding device, it fixes the flange plate through the U-shaped groove, places the web on the platform, adjusts the relative distance of sliding plate for the flange plate butt joint goes up the web, welds web upper surface and flange plate together, but it needs to overturn the web through the manpower, and the welder that the rethread is located the H-shaped steel top welds web another side and flange plate together, makes H-shaped steel welding process waste time and energy, and welding efficiency is low.

Disclosure of Invention

The utility model aims to improve and innovate the defects and problems existing in the background technology, and provides a novel H-shaped steel welding device, which comprises:

the base is internally provided with a second motor, the output end of the second motor is fixedly connected with a second screw rod, and the middle part of the second screw rod is penetrated by and in threaded connection with two third sliding blocks and two fourth sliding blocks;

the lifting seat is rotationally connected with two rotating rods which are symmetrically arranged, one end of each rotating rod, which is far away from the lifting seat, is rotationally connected with a fourth sliding block, the lifting seat is provided with a turnover mechanism, and the lifting seat turns the web plate of the H-shaped steel by 180 degrees through the turnover mechanism and drives the web plate of the H-shaped steel to move up and down;

the clamping device is respectively arranged at two sides of the lifting seat and comprises two second clamping blocks and a driving mechanism, and the driving mechanism is used for driving the two second clamping blocks to move back to back or move in opposite directions so that the second clamping blocks fix the flange plates of the H-shaped steel; the clamping devices on two sides are respectively and fixedly connected with the third sliding block through connecting rods.

According to the technical scheme, the second screw rod is driven to rotate through the second motor, so that the two third sliding blocks can be driven to move oppositely and the two fourth sliding blocks can be driven to move oppositely, the flange plate of the H-shaped steel and the web plate are spliced together, and the upper surface of the web plate and the flange plate are welded together conveniently; when the two second clamping blocks are driven to move oppositely, the second clamping blocks and the flange plate are driven to rotate in the opposite direction through the second motor after a certain distance is reserved between the second clamping blocks and the flange plate, the two third sliding blocks can be driven to move oppositely and the two fourth sliding blocks can be driven to move oppositely, so that the bottom end of the flange plate is separated from the second clamping blocks and the clamping device is far away from the flange plate, and when the turnover mechanism drives the H-shaped steel to rotate, the clamping device cannot interfere the turnover of the H-shaped steel, so that the turnover of the H-shaped steel is realized, the operation is simple and convenient, and the welding machine efficiency of the H-shaped steel is improved; in addition, as previously described, clamping device can not interfere the upset of H shaped steel for the second motor drives the second lead screw rotation, can drive two third sliders and two fourth sliders relative motion simultaneously, compares and adopts different mechanisms to drive third slider and fourth slider relative motion respectively, and this application is operated more portably, has saved the acquisition cost of equipment simultaneously.

Further scheme is, tilting mechanism includes mirror symmetry's supporting seat, cylinder, gear, ring gear and first clamp splice, the supporting seat slides and sets up on the elevating system, and the fifth slider is installed respectively to two supporting seat one sides, the third lead screw is inserted in fifth slider middle part and is equipped with and threaded connection with it, the one end of third lead screw and the output fixed connection of fourth motor, the one end and the supporting seat normal running fit of cylinder, the end of cylinder is provided with the second annular lug, a plurality of protruding poles are installed to the interval on the second annular lug, the annular spacing groove looks adaptation that sets up in protruding pole and the supporting seat is inside, and the ring gear sets up in the surface of cylinder, and the ring gear is connected with the gear engagement, the gear is rotated by the third motor drive of installing on the supporting seat, and two first clamp splice sets up in the cylinder inboard and set up relatively, and the recess that the web that is used for H shaped steel was passed is seted up to the one end that the supporting seat was kept away from to the cylinder.

By the above-mentioned technical scheme, this application drives fifth slider relative motion through the fourth motor, can drive two supporting seat relative motions, because the protruding pole on the cylinder and the annular spacing groove looks adaptation of seting up on the supporting seat to can drive cylinder relative motion, make first clamp splice relative motion and grasp the web of H shaped steel, the ring gear butt on two supporting seats forms a complete whole together this moment, when making gear and ring gear meshing cooperation, can drive the upset of H shaped steel.

Further, the first annular protruding block is arranged on the outer surface of the roller, the first annular protruding block is in rotary fit with a roller, and the roller is rotationally connected to the supporting seat through a bearing.

Further, the clamping device comprises a fixing seat, the fixing seat is fixedly connected with the connecting rod, the driving mechanism comprises a fourth screw rod which is rotationally connected to the fixing seat, the middle part of the fourth screw rod penetrates through the second clamping block and is in threaded connection with the second clamping block, and the upper end of the second clamping block penetrates through the fixing seat and is in sliding fit with the fixing seat.

Further, the base is provided with a support, the support is provided with an actuating mechanism, the actuating mechanism at least comprises an electric telescopic rod, a welding gun is fixedly connected to the telescopic end of the electric telescopic rod, and the electric telescopic rod is used for driving the welding gun to move up and down.

Further scheme is, actuating mechanism includes two first backup pads, rotate in the first backup pad and be connected with first lead screw, the one end of first lead screw and the output fixed connection of first motor, first motor is installed in the first backup pad, first lead screw middle part runs through the second slider and threaded connection with it, electric telescopic handle installs on the second slider, and the axis of first lead screw is parallel with the web length direction of H shaped steel.

Further scheme is, the support includes two curb plates that set up relatively and sets up the roof between two curb plates, installs the cylinder on the curb plate, the output fixedly connected with first slider of cylinder, first slider upper surface and roof sliding fit, first slider lower surface mounting have first backup pad.

The further scheme is that the directions of the internal threads on the two third sliding blocks are opposite, and the directions of the internal threads on the two fourth sliding blocks are opposite.

Further, a rubber pad is arranged on the second clamping block.

Further, a rubber pad is arranged on the first clamping block.

Compared with the prior art, the utility model has the beneficial effects that: (1) The second motor drives the second screw rod to rotate, so that the two third sliding blocks can be driven to move oppositely and the two fourth sliding blocks can be driven to move oppositely, the flange plate of the H-shaped steel is convenient to splice with the web plate, and the upper surface of the web plate is convenient to weld with the flange plate; when the two second clamping blocks are driven to move oppositely, the second clamping blocks and the flange plate are driven to rotate in the opposite direction through the second motor after a certain distance is reserved between the second clamping blocks and the flange plate, the two third sliding blocks can be driven to move oppositely and the two fourth sliding blocks can be driven to move oppositely, so that the bottom end of the flange plate is separated from the second clamping blocks and the clamping device is far away from the flange plate, and when the turnover mechanism drives the H-shaped steel to rotate, the clamping device cannot interfere the turnover of the H-shaped steel, so that the turnover of the H-shaped steel is realized, the operation is simple and convenient, and the welding machine efficiency of the H-shaped steel is improved; in addition, as mentioned before, the clamping device can not interfere the overturning of the H-shaped steel, so that the second motor drives the second screw rod to rotate, and can simultaneously drive the two third sliding blocks and the two fourth sliding blocks to move relatively;

(2) This application drives fifth slider relative motion through the fourth motor, can drive two supporting seats relative motion, because the protruding pole on the cylinder and the annular spacing groove looks adaptation of seting up on the supporting seat to can drive cylinder relative motion, make first clamp splice relative motion and grasp the web of H shaped steel, the ring gear butt on two supporting seats forms a complete whole together this moment, when making gear and ring gear meshing cooperation, can drive the upset of H shaped steel.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a novel H-beam welding device according to an embodiment of the present utility model;

fig. 2 is a schematic front view of a turnover mechanism and a clamping device according to an embodiment of the present utility model;

FIG. 3 is a schematic side view of a turnover mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic side view of an actuator according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a partial enlarged structure at A in FIG. 2 according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a cross-sectional structure of a support base according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a cross-sectional structure of a support base according to an embodiment of the present utility model;

reference numerals: the welding gun comprises a base 1, a bracket 2, an air cylinder 3, a first sliding block 4, a first supporting plate 5, a first motor 6, a first screw rod 7, a second sliding block 8, an electric telescopic rod 9, a welding gun 10, a second motor 11, a second screw rod 12, a third sliding block 13, a fourth sliding block 14, a rotating rod 15, a connecting rod 16, a lifting seat 17, a supporting seat 18, a roller 19, a first clamping block 20, a groove 21, a third motor 22, a gear 23, a gear ring 24, a first annular convex block 25, a roller 26, a second supporting plate 27, a fourth motor 28, a fifth sliding block 29, a third screw rod 30, a fixed seat 31, a fourth screw rod 32, a second clamping block 33, a second annular convex block 1901, a convex rod 1902 and an annular limiting groove 1801.

Detailed Description

In order that the objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-7, the present utility model provides a novel H-shaped steel welding device, comprising:

the base 1, install the second motor 11 in the said base 1, the output end of the said second motor 11 fixedly connects with the second lead screw 12, the middle part of the said second lead screw 12 has two third slide blocks 13 and two fourth slide blocks 14 to run through and connect with it by the screw thread, the internal thread on two third slide blocks 13 is opposite in direction, the internal thread on two fourth slide blocks 14 is opposite in direction, when the second motor 11 drives the second lead screw 12 to rotate, will drive two third slide blocks 13 to move in opposite directions or move in opposite directions and drive two fourth slide blocks 14 to move in opposite directions or move in opposite directions;

the lifting seat 17 is rotationally connected with two rotating rods 15 which are symmetrically arranged, one end of each rotating rod 15 far away from the lifting seat 17 is rotationally connected with a fourth sliding block 14, the lifting seat 17 is provided with a turnover mechanism, the lifting seat 17 turns over the web of the H-shaped steel by 180 degrees through the turnover mechanism, and when the fourth sliding blocks 14 move back to back or move in opposite directions, the lifting seat 17 is driven to move up and down, so that the web of the H-shaped steel is driven to move up and down;

the clamping devices are respectively arranged at two sides of the lifting seat 17, and each clamping device comprises two second clamping blocks 33 and a driving mechanism, and the driving mechanism is used for driving the two second clamping blocks 33 to move back to back or move towards each other, so that the second clamping blocks 33 fix the flange plates of the H-shaped steel; the clamping devices on two sides are respectively fixedly connected with the third sliding block 13 through the connecting rods 16, and when the third sliding block 13 moves back to back or moves in opposite directions, the clamping devices are driven to move back to back or move in opposite directions, so that the flange plates of the H-shaped steel are driven to move relatively, and the flange plates and the web plates of the H-shaped steel are conveniently spliced together.

It will be appreciated that when the upper surface of the web of the H-section steel and the flange plate are welded together; at this time, the two second clamping blocks 33 are driven to move oppositely, so that after the second clamping blocks 33 are separated from the flange plate by a certain distance, the second motor 11 is started to drive the two third sliding blocks 13 to move oppositely and the two fourth sliding blocks 14 to move oppositely, thereby separating the bottom end of the flange plate from the second clamping blocks 33 and enabling the clamping device to be far away from the flange plate, and in the process of separating the bottom end of the flange plate from the second clamping blocks 33, the second clamping blocks 33 are separated from the flange plate by a certain distance, so that the second clamping blocks 33 cannot block the whole upward movement of the H-shaped steel, and when the turnover mechanism drives the H-shaped steel to rotate again, the clamping device cannot interfere the turnover of the H-shaped steel, so that the turnover of the H-shaped steel is realized, the operation is simple and convenient, and the welding machine efficiency of the H-shaped steel is improved; it should be noted that, because clamping device can not interfere the upset of H shaped steel for second motor 11 drives second lead screw 12 rotation, can drive two third slider 13 and two fourth slider 14 relative motion simultaneously, compares and adopts different mechanisms to drive third slider 13 and fourth slider 14 relative motion respectively, and this application is operated more portably, has saved the purchase cost of equipment simultaneously.

Referring to fig. 2 and 3, the turnover mechanism includes a supporting seat 18, a roller 19, a gear 23, a gear ring 24 and a first clamping block 20 which are mirror symmetrical, the supporting seat 18 is slidably disposed on the lifting seat 17, one sides of the two supporting seats 18 are respectively provided with a fifth sliding block 29, a third screw rod 30 is inserted in the middle of the fifth sliding block 29 and is in threaded connection with the middle, one end of the third screw rod 30 is fixedly connected with the output end of a fourth motor 28, the fourth motor 28 is mounted on a second supporting plate 27, the second supporting plate 27 is mounted on the lifting seat 17, and when the fourth motor 28 drives the third screw rod 30 to rotate, the two fifth sliding blocks 19 are driven to move relatively, so as to drive the supporting seat 18 to move relatively.

Referring to fig. 6 and 7, fig. 6 and 7 are schematic cross-sectional structures of different positions of the supporting seat 18, one end of the roller 19 extends into the supporting seat 18 and is in running fit with the supporting seat 18, a second annular bump 1901 is disposed at the end of the roller 19, the second annular bump 1901 is in sliding fit with an annular chute formed in the supporting seat 18, the movement of the roller 19 along the axial direction is limited by the sliding fit of the second annular bump 1901 and the annular chute, a plurality of protruding rods 1902 are mounted on the second annular bump 1901 at intervals, the protruding rods 1902 are matched with annular limiting grooves 1801 formed in the supporting seat 18, the protruding rods 1902 are matched with the annular limiting grooves 1801, so that the supporting seat 18 can drive the roller 19 to move up and down, a gear 24 is disposed on the outer surface of the roller 19, the gear 23 is in meshed connection with the gear 23, the two first clamping blocks 20 are disposed inside the roller 19 and are oppositely disposed by a third motor 22 mounted on the supporting seat 18, and one end of the roller 19 far from the supporting seat 18 is provided with a groove 21 for penetrating through a profile steel web. It can be understood that after the two support bases 18 relatively move, the protruding rod 1902 on the roller 19 is matched with the annular limiting groove 1801 formed on the support base 18, so that the roller 19 can be driven to relatively move, the first clamping block 20 relatively moves to clamp the web of the H-shaped steel, and at this time, the gear ring 24 on the two support bases 18 is abutted together to form a complete whole, so that the gear 23 can drive the H-shaped steel to turn over when engaged with the gear ring 24.

Referring to fig. 2, a first annular protrusion 25 is mounted on the outer surface of the roller 19, the first annular protrusion 25 is rotatably fitted with a roller 26, the roller 26 is rotatably connected to the supporting seat 18 through a bearing, and when the gear 23 is engaged with the gear ring 24 through the rotation fit of the first annular protrusion 25 and the roller 26, the roller 19 rotates more smoothly.

Referring to fig. 5, the clamping device includes a fixing seat 31, the fixing seat 31 is fixedly connected with the connecting rod 16, the driving mechanism includes a fourth screw rod 32 rotatably connected to the fixing seat 31, the middle portion of the fourth screw rod 32 penetrates through the second clamping block 33 and is in threaded connection with the second clamping block, and the upper end of the second clamping block 33 penetrates through the fixing seat 31 and is in sliding fit with the second clamping block, it can be understood that when the fourth screw rod 32 is rotated, the two second clamping blocks 33 are driven to move in opposite directions or in opposite directions.

Referring to fig. 1 and 4, a support 2 is mounted on the upper surface of the base 1, an actuating mechanism is disposed on the support 2, the support includes two side plates disposed opposite to each other and a top plate disposed between the two side plates, the actuating mechanism includes a cylinder 3 mounted on the side plates, an output end of the cylinder 3 is fixedly connected with a first slider 4, an upper surface of the first slider 4 is slidably engaged with the top plate, and two first support plates 5 are mounted on a lower surface of the first slider 4. The first support plate 5 is rotationally connected with a first screw rod 7, one end of the first screw rod 7 is fixedly connected with the output end of the first motor 6, the first motor 6 is installed on the first support plate 5, the middle part of the first screw rod 7 penetrates through the second sliding block 8 and is in threaded connection with the second sliding block, the second sliding block 8 is provided with an electric telescopic rod 9, and the central axis of the first screw rod 7 is parallel to the length direction of the web plate of the H-shaped steel. The telescopic end of the electric telescopic rod 9 is fixedly connected with a welding gun 10, and the electric telescopic rod 9 is used for driving the welding gun 10 to move up and down. It can be understood that the first sliding block 4 is driven to transversely move by the expansion and contraction of the air cylinder 3, so that the welding gun 10 is driven to transversely move, the two ends of the web plate and the flange plate are conveniently welded together, the first screw rod 7 is driven to rotate by the first motor 6, the electric telescopic rod 9 is driven to longitudinally move, so that the welding gun 10 is driven to longitudinally move, and the web plate and the flange plate are conveniently welded together at different positions; it should be noted that, in order to implement the movement of the second slider 8 along the central axis direction of the first screw rod 7, the second slider 8 may be disposed in sliding fit with the slide rod or the second slider 8 may be disposed in sliding fit with the first slider 4, where two ends of the slide rod are fixedly connected with the first support plate 5, which is not limited herein.

The working principle of the utility model is as follows: when the flange plate welding device is particularly used, the fourth screw rod 32 is rotated to drive the two second clamping blocks 33 to move in opposite directions so as to clamp the flange plate to be welded, and the third screw rod 30 is rotated to drive the mirror symmetry supporting seat 18 and the first clamping block 20 to move in opposite directions so that the first clamping block 20 clamps the web plate to be welded, and meanwhile, the gear rings 24 on the two supporting seats 18 are abutted together to form a complete gear ring 24; then, the second motor 11 is started, the second motor 11 drives the second screw rod 12 to rotate, so that the two third sliding blocks 13 move in opposite directions, the two fourth sliding blocks 14 move in opposite directions, when the central surface of the web plate in the height direction is coincident with the central surface of the flange plate in the height direction, the surface of the flange plate just abuts against the two ends of the web plate, at the moment, the welding gun 10 is driven to move transversely, move forwards and backwards and move up and down, and the two ends of the upper surface of the web plate and the flange plate are welded together by the welding gun 10; then the fourth screw rod 32 is reversely rotated to drive the two second clamping blocks 33 to reversely move, so that the second clamping blocks 33 and the flange plate are separated by a certain distance, the H-shaped steel is not limited to upwards move, then the second motor 11 drives the second screw rod 12 to reversely rotate, the two third sliding blocks 13 are reversely moved, the two fourth sliding blocks 14 are reversely moved, after the flange plate upwards moves to a certain height position, the fourth motor 28 drives the gear 23 to rotate, the gear 23 drives the gear ring 24 to rotate, the H-shaped steel is overturned for 180 degrees, then the second motor 11 drives the second screw rod 12 to rotate, the web plate and the flange plate integrally move downwards, after the web plate bottom is propped against the fixing seat 31, the H-shaped steel moves to a proper position, and at the moment, the other surface of the web plate and the flange plate can be welded together through the welding gun 10.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application for the embodiment. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. Novel H shaped steel welding device, its characterized in that includes:

the device comprises a base (1), wherein a second motor (11) is arranged in the base (1), the output end of the second motor (11) is fixedly connected with a second screw rod (12), and two third sliding blocks (13) and two fourth sliding blocks (14) penetrate through the middle of the second screw rod (12) and are in threaded connection with the second screw rod;

the lifting seat (17), two rotating rods (15) which are symmetrically arranged are rotationally connected to the lifting seat (17), one end, far away from the lifting seat (17), of each rotating rod (15) is rotationally connected with a fourth sliding block (14), a turnover mechanism is arranged on the lifting seat (17), and the lifting seat (17) turns a web plate of the H-shaped steel by 180 degrees through the turnover mechanism and drives the web plate of the H-shaped steel to move up and down;

the clamping devices are respectively arranged at two sides of the lifting seat (17), and each clamping device comprises two second clamping blocks (33) and a driving mechanism, and the driving mechanism is used for driving the two second clamping blocks (33) to move back to back or move in opposite directions, so that the second clamping blocks (33) fix the flange plates of the H-shaped steel; the clamping devices on the two sides are respectively fixedly connected with the third sliding block (13) through connecting rods (16).

2. The novel H-section steel welding device according to claim 1, wherein: the turnover mechanism comprises a supporting seat (18), a roller (19), a gear (23), a gear ring (24) and a first clamping block (20), wherein the supporting seat (18) is arranged on a lifting seat (17) in a sliding mode, a fifth sliding block (29) is respectively arranged on one side of each supporting seat (18), a third screw rod (30) is inserted in the middle of each fifth sliding block (29) and is in threaded connection with the fifth sliding block, one end of each third screw rod (30) is fixedly connected with the output end of a fourth motor (28), one end of each roller (19) is in running fit with the supporting seat (18), a second annular protruding block (1901) is arranged at the tail end of each roller (19), a plurality of protruding rods (1902) are arranged on each second annular protruding block (1901) at intervals, annular limiting grooves (1801) formed in the protruding rods (1902) and the supporting seat (18) are matched, each tooth ring (24) is arranged on the outer surface of the roller (19), each tooth ring (24) is in meshed connection with the gear ring (23), one end of each third screw rod (30) is fixedly connected with the output end of each fourth motor (28), one end of each third screw rod (19) is arranged on the supporting seat (18), each third protruding rod (22) is rotatably arranged on the corresponding supporting seat (19), one end of each protruding rod (1901) is arranged on the corresponding roller (19), and is far away from the corresponding roller (19), and the corresponding roller (20) is arranged.

3. The novel H-section steel welding device according to claim 2, wherein: the outer surface of the roller (19) is provided with a first annular protruding block (25), the first annular protruding block (25) is in rotating fit with a roller (26), and the roller (26) is rotatably connected to the supporting seat (18) through a bearing.

4. The novel H-section steel welding device according to claim 1, wherein: the clamping device comprises a fixing seat (31), the fixing seat (31) is fixedly connected with the connecting rod (16), the driving mechanism comprises a fourth screw rod (32) which is rotationally connected to the fixing seat (31), the middle part of the fourth screw rod (32) penetrates through the second clamping block (33) and is in threaded connection with the second clamping block, and the upper end of the second clamping block (33) penetrates through the fixing seat (31) and is in sliding fit with the fixing seat.

5. The novel H-section steel welding device according to claim 1, wherein: install support (2) on base (1), be provided with actuating mechanism on support (2), actuating mechanism includes electric telescopic handle (9) at least, electric telescopic handle (9)'s telescopic end fixedly connected with welder (10), electric telescopic handle (9) are used for driving welder (10) up-and-down motion.

6. The novel H-section steel welding device according to claim 5, wherein: the actuating mechanism comprises two first support plates (5), a first screw rod (7) is rotationally connected to the first support plates (5), one end of the first screw rod (7) is fixedly connected with the output end of a first motor (6), the first motor (6) is installed on the first support plates (5), the middle part of the first screw rod (7) penetrates through a second sliding block (8) and is in threaded connection with the second sliding block, an electric telescopic rod (9) is installed on the second sliding block (8), and the central axis of the first screw rod (7) is parallel to the length direction of a web plate of the H-shaped steel.

7. The novel H-section steel welding device according to claim 6, wherein: the support comprises two side plates and a top plate, wherein the two side plates are oppositely arranged, the top plate is arranged between the two side plates, an air cylinder (3) is arranged on each side plate, a first sliding block (4) is fixedly connected to the output end of each air cylinder (3), the upper surface of each first sliding block (4) is in sliding fit with the top plate, and the lower surface of each first sliding block (4) is provided with a first supporting plate (5).

8. The novel H-section steel welding device according to claim 1, wherein: the directions of the internal threads on the two third sliding blocks (13) are opposite, and the directions of the internal threads on the two fourth sliding blocks (14) are opposite.

9. The novel H-section steel welding device according to claim 4, wherein: and a rubber pad is arranged on the second clamping block (33).

10. The novel H-section steel welding device according to claim 2, wherein: a rubber pad is arranged on the first clamping block (20).