CN218109790U - H-shaped steel turnover welding device - Google Patents

Abstract

The application discloses H shaped steel upset welding set includes: the welding device comprises a first guide rail and a second guide rail which are arranged in parallel, wherein a material receiving device is arranged on the surface of the first guide rail, and a welding mechanism is arranged on the surface of the second guide rail; a conveying device is arranged on one side of the material receiving device and used for conveying H-shaped steel, the material receiving device can move along the length direction of the first guide rail, and the welding mechanism can move along the length direction of the second guide rail; a welding working position is arranged between the material receiving device and the welding mechanism, the material receiving device can receive the H-shaped steel conveyed by the conveying device, and the H-shaped steel is turned to a lying position and then welded at the working position. Carry out accurate location to H shaped steel in whole welding process, increase production machining efficiency when guaranteeing H shaped steel's stability.

Description

H-shaped steel turnover welding device

Technical Field

The application relates to the technical field of steel welding, in particular to an H-shaped steel turnover welding device.

Background

In steel structure enterprises, H-shaped steel is a standard product. In the past production mode, the inner partition plate welding of the H-shaped steel needs manual welding by workers, manual operation is needed, and time consumption is long, so that the welding mechanism for steel is arranged in the prior art, but the spot welding positioning and large-area welding of the welding mechanism need to be carried out by a branch machine, the H-shaped steel structure processed through spot welding is not stably formed, and the safety of the H-shaped steel structure needs to be guaranteed during transportation and subsequent large-area welding processing.

Therefore, how to provide a device for performing stable large-area welding processing on the H-shaped steel is a problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The application aims at providing an H shaped steel upset welding set who stably transports, accurate processing to H shaped steel.

In order to realize above-mentioned purpose, this application provides an H shaped steel upset welding set, includes: a first guide rail and a second guide rail arranged in parallel with each other; the surface of the first guide rail is provided with a material receiving device which can slide along the length direction of the first guide rail, the surface of the second guide rail is provided with a welding mechanism, and the welding mechanism can slide along the length direction of the second guide rail;

a conveying device is arranged on one side of the material receiving device, and the material receiving device is used for receiving the H-shaped steel conveyed by the conveying device and overturning the H-shaped steel to a working position; the welding mechanism is used for welding the H-shaped steel positioned at the working position.

In some embodiments, the receiving device comprises: the movable platform can slide along the surface of the first guide rail, and a telescopic material receiving mechanism and a turnover feeding mechanism are horizontally arranged on the surface of the movable platform;

the telescopic material receiving mechanism is used for receiving the H-shaped steel conveyed by the conveying device and conveying the H-shaped steel to a working position; the turnover feeding mechanism is used for turning the H-shaped steel to the welding surface.

In some embodiments, the tumble feed mechanism includes: the rotating shaft is arranged above the moving platform along the length direction of the first guide rail, and a first overturning arm and a second overturning arm are sleeved outside the rotating shaft; the first overturning arm and the second overturning arm can circumferentially rotate relative to the rotating shaft so as to drive the H-shaped steel to overturn;

and an oil cylinder mechanism for driving the first turnover arm and the second turnover arm is arranged on the surface of the mobile station.

In some embodiments, the telescopic receiving mechanism comprises: the mounting seat is arranged on the surface of the mobile platform, a sliding rail is horizontally arranged on the top surface of the mounting seat, the sliding rail is arranged along the direction perpendicular to the first guide rail, a telescopic arm is arranged on the surface of the sliding rail, a telescopic driving mechanism is arranged inside the mounting seat, and the telescopic driving mechanism is used for driving the telescopic arm to move along the sliding rail so as to transport H-shaped steel.

In some embodiments, the welding mechanism comprises: the welding device comprises a movable bottom plate, a driving assembly and a welding device;

the welding device is arranged on the surface of the movable bottom plate, and the driving assembly is used for driving the movable bottom plate to move along the second guide rail.

In some embodiments, the second rail is provided with a rack on the side; the drive assembly includes: the servo motor, the fixed connecting plate and the driving gear are coaxially arranged;

the fixed connecting plate is fixedly connected with the movable bottom plate, and the servo motor and the driving gear penetrate through two sides of the movable bottom plate; the servo motor is used for driving the driving gear to be in meshed transmission with the rack of the second guide rail.

In some embodiments, the surface of the fixing link plate is provided with a connecting portion, and an adjusting screw penetrates through the connecting portion and is used for adjusting the position of the fixing link plate.

In some embodiments, the welding mechanism further comprises: the welding wire barrel assembly and the power supply water tank assembly are arranged on the surface of the movable bottom plate;

the welding wire barrel assembly is used for supplying materials to the welding device, and the power supply water tank assembly is used for cooling the power supply of the welding assembly.

In some embodiments, the delivery device comprises: the third guide rail and a lifting transport vehicle used for transporting the H-shaped steel; the lifting transport vehicle can move along the length direction of the third guide rail, and the top surface of the lifting transport vehicle can carry the H-shaped steel to lift along the vertical direction so as to convey the H-shaped steel to the material receiving device.

In some embodiments, one end of the first guide rail is provided with an end face positioning device, and the end face positioning device is used for positioning the working position of the H-shaped steel, and comprises: a positioning frame and a positioning plate; the locating plate is installed in the one side of locating rack towards first guide rail to the one end of butt H shaped steel.

Compared with the prior art, the welding device is provided with a first guide rail and a second guide rail which are arranged in parallel, wherein a material receiving device is arranged on the surface of the first guide rail, and a welding mechanism is arranged on the surface of the second guide rail; a conveying device is arranged on one side of the material receiving device and used for conveying H-shaped steel, the material receiving device can move along the length direction of the first guide rail, and the welding mechanism can move along the length direction of the second guide rail; the material receiving device can receive the H-shaped steel conveyed by the conveying device and turn the H-shaped steel to a welding surface, and the conventional H-shaped steel needs to be subjected to spot welding firstly and then large-area welding, so that after the H-shaped steel is subjected to spot welding, the surface of the conveying device is in an upright position to prevent spot welding structures on two sides from being separated; after the receiving device receives the H-shaped steel, the H-shaped steel needs to be turned to a lying position, and large-area reinforcing welding is carried out on the spot welding structure on the side face of the H-shaped steel. A welding working position exists between the material receiving device and the welding mechanism, and the material receiving device is used for ensuring that welding is completed at the working position after the H-shaped steel is turned to the lying position. Carry out accurate location to H shaped steel in whole welding process, increase production machining efficiency when guaranteeing H shaped steel's stability.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an H-shaped steel turnover welding device provided by an embodiment of the application;

FIG. 2 is a schematic structural diagram of a welding mechanism provided in an embodiment of the present application;

FIG. 3 is an elevation view of a welding mechanism provided by an embodiment of the present application;

FIG. 4 is a top view of a welding mechanism provided by an embodiment of the present application;

fig. 5 is a schematic structural diagram of a driving assembly according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a receiving device provided in an embodiment of the present application;

fig. 7 is a bottom view of a mobile station provided by an embodiment of the present application;

fig. 8 is a schematic structural diagram of an overturning feeding mechanism provided in the embodiment of the present application;

fig. 9 is a schematic structural view of a telescopic receiving mechanism provided in an embodiment of the present application;

fig. 10 is a side view of the telescopic receiving mechanism provided in the embodiment of the present application;

fig. 11 is a schematic structural diagram of a driving motor according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an end face positioning device according to an embodiment of the present application;

FIG. 13 is a schematic view of a first step of the operation of the H-beam turnover welding apparatus according to the embodiment of the present application;

FIG. 14 is a side view of a first step of the H-beam turnover welding apparatus according to the embodiment of the present application;

FIG. 15 is a schematic view showing a second operation of the H-beam turnover welding apparatus according to the embodiment of the present application;

FIG. 16 is a side view showing a second operation of the H-beam inversion welding apparatus according to the embodiment of the present application;

FIG. 17 is a schematic view showing a third step of the operation of the H-beam turnover welding apparatus according to the embodiment of the present application;

FIG. 18 is a side view of a third step in the operation of the H-beam turnover welding apparatus according to the embodiment of the present application;

FIG. 19 is a schematic view of the H-beam turnover welding apparatus according to the fourth step of the present disclosure;

fig. 20 is a side view of the H-shaped steel flip-chip welding apparatus provided in the embodiment of the present application, which is operated in the fourth step.

Wherein:

1-a material receiving device, 11-a moving table, 110-a telescopic driving mechanism, 111-a driving shaft, 112-a walking drive, 12-a telescopic material receiving mechanism, 13-a turnover feeding mechanism, 14-a rotating shaft, 15-a first turnover arm, 16-a second turnover arm, 17-a mounting seat, 18-a sliding rail, 19-a telescopic arm, 2-a welding mechanism, 21-a moving bottom plate, 22-a driving assembly, 221-a servo motor, 222-a fixed connecting plate, 223-a driving gear, 224-an adjusting screw, 23-a welding device, 24-a welding wire barrel assembly, 25-a power supply water tank assembly, 3-a conveying device, 4-an end face positioning device, 41-a positioning frame and 42-a positioning plate.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.

Referring to fig. 1 to 7 of the specification, fig. 1 is a schematic structural diagram of an H-shaped steel turnover welding device provided in an embodiment of the present application, fig. 2 is a schematic structural diagram of a welding mechanism provided in an embodiment of the present application, fig. 3 is a front view of the welding mechanism provided in the embodiment of the present application, fig. 4 is a top view of the welding mechanism provided in the embodiment of the present application, fig. 5 is a schematic structural diagram of a driving assembly provided in the embodiment of the present application, fig. 6 is a schematic structural diagram of a receiving device provided in the embodiment of the present application, and fig. 7 is a bottom view of a moving table provided in the embodiment of the present application, and includes: the device comprises a first guide rail and a second guide rail which are arranged on the ground in parallel, wherein a material receiving device 1 is arranged on the surface of the first guide rail, and a welding mechanism 2 is arranged on the surface of the second guide rail; a conveying device 3 is arranged on one side of the material receiving device 1, the conveying device 3 is used for conveying H-shaped steel, the material receiving device 1 can move along the length direction of a first guide rail, and the welding mechanism 2 can move along the length direction of a second guide rail; the material receiving device 1 can receive the H-shaped steel conveyed by the conveying device 3 and turn the H-shaped steel to a welding surface, and the conventional H-shaped steel needs to be subjected to spot welding firstly and then large-area welding, so that after the H-shaped steel is subjected to spot welding, the surface of the conveying device 3 is in an upright position to prevent spot welding structures on two sides from being separated; after the receiving device 1 receives the H-shaped steel, the H-shaped steel needs to be turned to a lying position, and large-area reinforcing welding is carried out on the spot welding structure on the side face of the H-shaped steel. There is welded work position between receiving device 1 and welding mechanism 2, and receiving device 1 is used for guaranteeing to accomplish the welding at the work position after turning over H shaped steel to the position of lying. Carry out accurate location to H shaped steel in whole welding process, increase production machining efficiency when guaranteeing H shaped steel's stability.

This application reduces welding mechanism 2's requirement, and its automatically controlled procedure only need satisfy the H shaped steel to the work position weld can, need not to carry out complicated welding procedure and sets for.

Further, the receiving device 1 includes: a movable table 11 for sliding on the surface of the first guide rail, wherein a telescopic receiving mechanism 12 and a turnover feeding mechanism 13 are horizontally arranged on the surface of the movable table 11; the telescopic receiving mechanism 12 is used for receiving the H-shaped steel transported by the transporting device 3 and moving the H-shaped steel to the working position. The turnover feeding mechanism 13 is used for turning the H-shaped steel over to a welding surface for welding by the welding machine device 2.

In one embodiment, the traveling drive 112 is mounted on the movable stage 11, the driving shaft 111 passes through the traveling drive 112, and the driving shaft 111 has two ends respectively mounted with a chain wheel and a bearing with a seat, the bearing with the seat is fixed on the movable stage 11, and the chain wheel is fixed by an end cover. The bush and the trolley wheel are placed in the moving platform 11, the trolley shaft passes through the moving platform 11, the bush and the trolley wheel, bearings are arranged at two ends of the trolley shaft, and the bearings are fixed on the moving platform 11 and are tightly propped by bearing end covers.

The specific structure and arrangement of the walking drive 112 can refer to the prior art, and will not be described herein.

Further, referring to fig. 8 in the specification, fig. 8 is a schematic structural diagram of an overturning feeding mechanism provided in an embodiment of the present application, including: the above-mentioned upset feeding mechanism 13 includes: a rotating shaft 14 arranged above the mobile station 11 along the length direction of the first guide rail, wherein a first overturning arm 15 and a second overturning arm 16 are sleeved outside the rotating shaft 14; in the process of transporting the H-shaped steel by the telescopic receiving mechanism 12, the H-shaped steel is perpendicular to the telescopic receiving mechanism 12 in the horizontal plane, and the first turning arm 15 and the second turning arm 16 are parallel to the telescopic receiving mechanism 12, so that the H-shaped steel passes through the surfaces of the first turning arm 15 and the second turning arm 16 in the transporting process. Both can rotate for axis of rotation 14 circumference to drive the H shaped steel and overturn.

The surface of the moving table 11 is provided with an oil cylinder mechanism for driving the first and second tilting arms 15 and 16.

In one embodiment, the cylinder mechanism is provided with a first cylinder 151 and a second cylinder 152; the overturning arm supporting seat, the oil cylinder seat and the overturning supporting seat are fixedly arranged on the moving platform 11, the first overturning arm 15 and the second overturning arm 16 are respectively arranged on two sides of the rotating shaft 14 after being provided with overturning copper sleeves on the surfaces, the overturning bush and the overturning seat are also arranged on two sides of the rotating shaft 14 and are fixed on the overturning supporting seat through the overturning seat, the first oil cylinder 151 is connected with one end of the first overturning arm 15, and the second oil cylinder 152 is connected with one end of the second overturning arm 16. The turnover arm is turned over through independent telescopic action of each oil cylinder, and the turning action of the H-shaped steel is realized.

Further, referring to fig. 9 to 11 in the specification, fig. 9 is a schematic structural diagram of a telescopic receiving mechanism provided in the embodiment of the present application, fig. 10 is a side view of the telescopic receiving mechanism provided in the embodiment of the present application, and fig. 11 is a schematic structural diagram of a driving motor provided in the embodiment of the present application, including: the telescopic receiving mechanism 12 comprises an installation seat 17 arranged on the surface of the mobile station 11, a slide rail 18 is horizontally arranged on the top surface of the installation seat 17, and the length direction of the slide rail 18 is vertical to the length direction of the first guide rail; the surface of the slide rail 18 is provided with a telescopic arm 19, the inside of the mounting seat 17 is provided with a telescopic driving mechanism 110, the telescopic driving mechanism 110 is used for driving the telescopic arm 19 to move along the slide rail 18, and the top surface of the telescopic arm 19 is used for placing H-shaped steel.

In one embodiment, the telescopic drive mechanism 110 comprises: servo motor, planetary reducer, drive mounting flange, gear, end cover. The planetary reducer is installed on the driving installation flange, the servo motor is connected and fixed with the planetary reducer, and the gear is coaxially connected with the planetary reducer and is tightly pressed and fixed by the end cover. Meanwhile, the bottom of the telescopic arm 19 is provided with a rack groove, so that the gear is engaged with the bottom rack groove of the telescopic arm 19, and the telescopic driving mechanism 110 drives the top gear to rotate, thereby realizing that the telescopic arm 19 moves along the length direction of the slide rail 18. The specific arrangement and matching method of the rack groove and the gear can refer to the prior art.

Further, the welding means 2 includes; a moving base plate 21, a driving assembly 22 and a welding device 23; the welding device 23 is disposed on the surface of the movable base plate 21. The driving assembly 22 is used for driving the moving base plate 21 to move along the second guiding rail.

Above-mentioned welding set 23 can select the automatically controlled welding robot among the prior art to realize, and it possesses the accurate easy operation's of control advantage, and welding set 23's the type selection is not only limited to here, and this paper is no longer expanded and is repeated.

Further, the second rail is provided with a rack on a side surface thereof, and the driving assembly 22 includes: a servo motor 221, a fixed connecting plate 222 and a driving gear 223 which are coaxially arranged from top to bottom; the fixed connecting plate 222 is fixedly connected with the movable bottom plate 21, and the servo motor 221 and the driving gear 223 are arranged through two sides of the movable bottom plate 21; the servo motor 221 is used for driving the gear 223 to be in meshing transmission with the rack of the second guide rail.

Further, a connecting portion is provided on the surface of the fixing link plate 222, an adjusting screw 224 is inserted into the connecting portion, and the adjusting screw 224 can finely adjust the installation position of the fixing link plate 222 by twisting itself.

The above-mentioned adjusting screw 224 and the connecting portion can be matched with each other by referring to the prior art, and specifically, the fine adjustment of the fixing connecting plate 222 can be realized by adopting a screw-thread matching movement or the like.

Further, the welding mechanism 2 further includes: a wire barrel assembly 24 and a power supply tank assembly 25 disposed on the surface of the moving floor 21; the wire barrel assembly 24 is used for providing raw materials for the welding device 23, and the power tank assembly 24 is used for cooling the power of the welding device 23.

The specific structure and arrangement method of the wire bucket assembly 24 and the power tank assembly 25 can refer to the prior art, and are not described herein again.

Further, the above-described conveying device 3 includes: third guide rail and lift transport vechicle, above-mentioned lift transport vechicle can remove along the length direction of third guide rail, and the top surface of lift transport vechicle is used for standing vertically placing H shaped steel, drives H shaped steel horizontal migration and lift.

The specific structure of the lifting transport vehicle can refer to the prior art, and the detailed description is omitted herein.

Further, referring to fig. 12 of the specification, fig. 12 is a schematic structural diagram of an end face positioning device provided in an embodiment of the present application, including: an end face positioning device 4 is arranged at one end of the first guide rail, the end face positioning device 4 is used for determining the working position of the H-shaped steel, and the structure of the H-shaped steel comprises; the positioning frame 41 is arranged on the side surface of the positioning frame 41 facing the first guide rail, and the side surface of the positioning plate 41 is used for abutting against one end of the H-shaped steel, so that positioning is achieved.

Referring to the accompanying drawings 13 to 20, fig. 13 is a schematic diagram of a first step of operation of an H-section steel turnover welding device provided by an embodiment of the present application, fig. 14 is a side view of the first step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, fig. 15 is a schematic diagram of a second step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, fig. 16 is a side view of the second step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, fig. 17 is a schematic diagram of a third step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, fig. 18 is a side view of the third step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, fig. 19 is a schematic diagram of a fourth step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, and fig. 20 is a side view of the fourth step of operation of the H-section steel turnover welding device provided by the embodiment of the present application, and includes: in the conventional use of the application, the action sequence of the device is as follows:

the first step is as follows: the control program controls all mechanisms to return to zero positions, an operator inputs parameters of the H-shaped steel and the inner partition plate, the conveying device 3 conveys the H-shaped steel to a corresponding position and lifts the H-shaped steel, the control program controls the material receiving device 1 to move to a corresponding workpiece position, and the telescopic material receiving mechanism 12 of the material receiving device 1 extends to the corresponding position;

the second step is that: the control program controls the conveying device 3 to descend, the H-shaped steel is placed on the telescopic arm 19, the first overturning arm 15 overturns upwards to 90 degrees, and the telescopic arm 19 retracts to the corresponding position;

the third step: after the telescopic arm 19 reaches the designated position, the first overturning arm 15 and the second overturning arm 16 start to overturn simultaneously, and the H-shaped steel is overturned by 90 degrees until the H-shaped steel is in a lying position;

the fourth step: after the overturning is finished, the material receiving device 1 works, the telescopic arm 19 moves to convey the H-shaped steel to a working position, and then the H-shaped steel is conveyed to the end face positioning position 4 for positioning; after the H-shaped steel reaches the designated position, the welding device 23 starts to work, and the inner partition plate is welded; after the welding is finished, the welding device 23 resets, the material receiving device 1 overturns the H-shaped steel back to a conveying state, the telescopic arm 19 conveys the H-shaped steel back to the conveying device 3, and the conveying device 3 conveys the H-shaped steel to the next station.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The H-shaped steel turnover welding device provided by the application is described in detail above. The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, the present application can also make several improvements and modifications, and those improvements and modifications also fall into the protection scope of the claims of the present application.

Claims (10)

1. The utility model provides a H shaped steel upset welding set which characterized in that includes: a first guide rail and a second guide rail arranged in parallel with each other; the material receiving device (1) is arranged on the surface of the first guide rail, the material receiving device (1) can slide along the length direction of the first guide rail, the welding mechanism (2) is arranged on the surface of the second guide rail, and the welding mechanism (2) can slide along the length direction of the second guide rail;

a conveying device (3) is arranged on one side of the material receiving device (1), and the material receiving device (1) is used for receiving the H-shaped steel conveyed by the conveying device (3) and overturning the H-shaped steel to a working position; the welding mechanism (2) is used for welding the H-shaped steel positioned at the working position.

2. The H-shaped steel turnover welding device according to claim 1, characterized in that the receiving device (1) comprises: the movable table (11) can slide along the surface of the first guide rail, and a telescopic material receiving mechanism (12) and a turnover feeding mechanism (13) are horizontally arranged on the surface of the movable table (11);

the telescopic receiving mechanism (12) is used for receiving the H-shaped steel conveyed by the conveying device (3) and conveying the H-shaped steel to a working position; the overturning and feeding mechanism (13) is used for overturning the H-shaped steel to the welding surface.

3. The H-beam inversion welding device of claim 2, wherein the inversion feeding mechanism (13) comprises: a rotating shaft (14) arranged above the mobile station (11) along the length direction of the first guide rail, wherein a first overturning arm (15) and a second overturning arm (16) are sleeved outside the rotating shaft (14); the first overturning arm (15) and the second overturning arm (16) can circumferentially rotate relative to the rotating shaft (14) so as to drive the H-shaped steel to overturn;

and an oil cylinder mechanism used for driving the first overturning arm (15) and the second overturning arm (16) is arranged on the surface of the mobile station (11).

4. The H-shaped steel turnover welding device according to claim 3, characterized in that the telescopic receiving mechanism (12) comprises: the setting is in mount pad (17) on mobile station (11) surface, mount pad (17) top surface level is provided with slide rail (18), the perpendicular to is followed in slide rail (18) the direction setting of first guide rail, slide rail (18) surface is provided with flexible arm (19), mount pad (17) inside is provided with flexible actuating mechanism (110), flexible actuating mechanism (110) are used for driving flexible arm (19) are followed slide rail (18) remove to transportation H shaped steel.

5. The H-beam inversion welding device of claim 4, wherein the welding mechanism (2) comprises: a movable bottom plate (21), a driving assembly (22) and a welding device (23);

the welding device (23) is arranged on the surface of the movable bottom plate (21), and the driving assembly (22) is used for driving the movable bottom plate (21) to move along the second guide rail.

6. The H-shaped steel turnover welding device according to claim 5, characterized in that a rack is arranged on the side surface of the second guide rail; the drive assembly (22) comprises: the servo motor (221), the fixed connecting plate (222) and the driving gear (223) are coaxially arranged;

the fixed connecting plate (222) is fixedly connected with the movable bottom plate (21), and the servo motor (221) and the driving gear (223) penetrate through two sides of the movable bottom plate (21); the servo motor (221) is used for driving the driving gear (223) to be in meshed transmission with the rack of the second guide rail.

7. The H-shaped steel turnover welding device according to claim 6, characterized in that the surface of the fixing connecting plate (222) is provided with a connecting portion, an adjusting screw (224) is arranged in the connecting portion in a penetrating mode, and the adjusting screw (224) is used for adjusting the position of the fixing connecting plate (222).

8. The H-shaped steel turnover welding device according to claim 7, characterized in that the welding mechanism (2) further comprises: a welding wire barrel assembly (24) and a power supply water tank assembly (25) arranged on the surface of the movable bottom plate (21);

the welding wire bucket assembly (24) is used for supplying the welding device (23), and the power supply water tank assembly (25) is used for cooling the power supply of the welding device (23).

9. The H-beam inversion welding device of claim 8, characterized in that the conveying device (3) comprises: the third guide rail and a lifting transport vehicle used for transporting the H-shaped steel; the lifting transport vehicle can move along the length direction of the third guide rail, and the top surface of the lifting transport vehicle can carry the H-shaped steel to lift along the vertical direction so as to convey the H-shaped steel to the material receiving device (1).

10. The H-shaped steel turnover welding device according to any one of claims 1-9, characterized in that one end of the first guide rail is provided with an end face positioning device (4), the end face positioning device (4) is used for positioning the working position of the H-shaped steel, and the device comprises: a positioning frame (41) and a positioning plate (42); the positioning plate (42) is arranged on one side, facing the first guide rail, of the positioning frame (41) so as to abut against one end of the H-shaped steel.

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