CN214815939U

CN214815939U - Self-propelled welded joint structure of shaped steel

Info

Publication number: CN214815939U
Application number: CN202022467806.5U
Authority: CN
Inventors: 王平; 朱静; 刘燕
Original assignee: Zhengzhou Kaibo Welding And Cutting Equipment Co ltd
Current assignee: Zhengzhou Kaibo Welding And Cutting Equipment Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-11-23
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a self-propelled welded joint structure of shaped steel, including the location roof, bear the base, the reference column, the coaster, driving motor, welding wire conveying roller set, welding nozzle and adjusting spring, the reference column up end is connected with the location roof, it passes through positioning mechanism and reference column lateral surface sliding connection to bear the base rear end face, preceding terminal surface is connected with the coaster up end, welding wire conveying roller set and the preceding terminal surface connection of bearing the base, be connected through the transmission shaft between welding wire conveying roller set and driving motor, the welding nozzle inlays terminal surface under the coaster, driving circuit inlays in location roof side surface, and respectively with the reference column, the coaster, driving motor, welding nozzle electrical connection. This novel welding jobs working face can be adjusted in a flexible way, and the adjustment flexibility is good, and the adjustment precision is high to can effectively satisfy multiple shaped steel material welding jobs's needs.

Description

Self-propelled welded joint structure of shaped steel

Technical Field

The utility model relates to a welding mechanism belongs to machining equipment technical field.

Background

In machining operation, the used self-propelled welding equipment is always in a traditional walking structure, the welding tool for welding is simply connected with the common pulley and the slide block, although the requirement of self-propelled continuous welding operation can be met to a certain extent, but in the welding operation, the walking mode is single, and the walking structure is fixed, so the requirement of continuous welding operation of flat workpieces can be met, when welding operation is carried out on workpieces with complicated structures and remarkable rules, such as section steel, the structure of the welding equipment cannot be flexibly adjusted according to different structures of the section steel by the traditional self-propelled welding equipment at present, so that the requirements of the welding operation of the complicated and changeable surface structures of the section steel are difficult to adapt, therefore, when the welding operation is carried out on the profile steel workpiece equipment at present, the use flexibility and the universality of the welding equipment are poor, and the machining efficiency and the precision of the welding operation are relatively insufficient.

Therefore, in order to solve the problem, it is urgently needed to develop a brand-new self-propelled welding device to meet the requirement of practical use.

SUMMERY OF THE UTILITY MODEL

The utility model discloses it is not enough just to aim at overcoming the aforesaid, provides a panel 360 upset seamless connection hinges. This novel simple structure adjusts nimble convenience, when satisfying and carrying out the welding jobs needs with equipment such as welding lathe, can adjust the welding jobs working face in a flexible way in addition, and adjusts the flexibility good, and the adjustment precision is high to very big improvement flexibility, commonality when this novel welding jobs, and can effectively satisfy multiple shaped steel material welding jobs's needs.

In order to achieve the above purpose, the utility model discloses a realize through following technical scheme:

a shaped steel self-propelled welding joint structure comprises a positioning top plate, a bearing base, a positioning column, a pulley, a driving motor, a welding wire conveying roller set, a welding nozzle and adjusting springs, wherein the upper end face of the positioning column is connected with the positioning top plate and coaxially distributed, the axis of the positioning column is vertically distributed with the horizontal plane, the bearing base is of a plate-shaped structure with a rectangular cross section, the rear end face of the bearing base is in sliding connection and parallel distribution with the outer side face of the positioning column through a positioning mechanism, the side face of the bearing base is connected with the side face of the positioning column through two adjusting springs, the adjusting springs are symmetrically distributed on two sides of the positioning column, the axis of the adjusting springs and a bearing of the positioning column form an included angle of 0-60 degrees, the front end face of the bearing base is connected with the upper end face of the pulley and vertically distributed, the welding wire conveying roller set is connected with the front end face of the bearing base and located above the pulley, the welding wire conveying roller set is connected with the driving motor through a transmission shaft, the driving motor is connected with the rear end face of the bearing base and located below the positioning column, the welding tip inlays in coaster lower extreme face to with the coaxial distribution of coaster, welding tip up end passes through contact tube and welding wire conveying roller set intercommunication, drive circuit inlays in location roof side surface, and respectively with reference column, coaster, driving motor, welding tip electrical connection.

Further, positioning mechanism include direction spout, slider, electromagnetic braking ware, linear drive motor, displacement sensor, direction spout rear end face and location base rear end face are connected and with location base axis parallel distribution, the latter half of slider inlays in the direction spout to with direction spout sliding connection, linear drive motor inlays in direction spout tank bottom, and is connected with the slider rear end face, the slider front end face is connected with the reference column lateral surface, just electromagnetic braking ware and displacement sensor all are connected with the slider lateral surface to be connected with the direction spout, electromagnetic braking ware, linear drive motor, displacement sensor respectively with drive circuit electrical connection.

Furthermore, the welding wire conveying roller group comprises a bearing plate, adjusting bolts, guide sleeves, a driving roller and guide rollers, wherein the bearing plate is connected with and parallel to the front end face of the bearing base, the driving roller and the guide rollers are distributed from top to bottom along the axial direction of the bearing base, the axial lines of the driving roller and the guide rollers are vertically distributed with the front end face of the bearing base, the driving roller is connected with a driving motor through a transmission shaft, at least two guide rollers are distributed at two sides of the driving roller at intervals, the bearing plate corresponding to the guide rollers is provided with adjusting grooves with the axial lines vertically distributed with the axial lines of the bearing base, the rear half parts of the guide rollers are embedded in the guide sleeves and coaxially distributed with the guide sleeves, the guide sleeves are embedded in the adjusting grooves and are in sliding connection with the side walls of the adjusting grooves, each guide sleeve is connected with the bearing plate through another adjusting bolt, and the adjusting bolts are coaxially distributed with the adjusting grooves, and the corresponding position of the bearing plate is provided with an adjusting screw hole, the adjusting bolt is connected with the bearing plate through the adjusting screw hole, the rear end face of the adjusting bolt is abutted against the outer surface of the guide sleeve, and the front end face of the adjusting bolt is positioned outside the bearing plate.

Furthermore, the tackle comprises a tackle body, traveling wheels, a meter counter, a traveling driving mechanism, at least two three-dimensional rotary table mechanisms, an angle sensor and an inclination angle sensor, wherein the tackle body is of a structure with a cross section in the shape of an Jiong-shaped groove, the traveling wheels are distributed on the front end surface and the rear end surface of the tackle body in a square mode along the axis of the tackle body, a bearing groove is formed in the center of the tackle body, the three-dimensional rotary table mechanisms are embedded in the bearing groove and are distributed coaxially with the bearing groove, the lower end surface of each three-dimensional rotary table mechanism is connected with a welding nozzle, the distance between the lower end surface of the welding nozzle and the bottom of the tackle body groove is 0.3-5 times of the depth of the tackle body groove, the meter counter is connected with the upper end surface of the tackle body and is connected with the traveling wheels on the front end surface of the tackle body, the traveling driving mechanism is connected with the rear end surface of the tackle body and is connected with the traveling wheels on the rear end surface of the tackle body, and the angle sensor and the inclination angle sensor are at least one, the meter counter, the walking driving mechanism, the three-dimensional rotary table mechanism, the angle sensor and the inclination angle sensor are all electrically connected with the driving circuit.

Further, the travelling wheel comprises a wheel carrier, a transmission shaft, a roller body, a protective side plate and an elastic adjusting rod, wherein the wheel carrier is of an Jiong-shaped groove-shaped frame structure, the upper end surface of the wheel carrier is connected with the vehicle body through a spring column, the axis of the wheel carrier is distributed in parallel with the axis of the vehicle body, the roller body is of a cylindrical structure, the roller body is coated outside the transmission shaft and coaxially distributed with the transmission shaft, two ends of the transmission shaft are respectively and vertically connected with the lower end surface of the side wall of the wheel carrier, the protective side plate is of a circular plate-shaped structure coaxially distributed with the roller body, the protective side plate is coated outside the transmission shaft and symmetrically distributed on two sides of the roller body, the diameter of the protective side plate is at least 1.5 times of the diameter of the roller body, the protective side plate is connected with the end surface of the roller body through at least two elastic adjusting rods, the distance between the roller body and the protective side plate is 0 to 3 times of the width of the vehicle body, the elastic adjusting rods are distributed in parallel with the axis of the roller body and uniformly distributed around the axis of the roller body, the roller body end face position that the elasticity was adjusted the pole and is corresponded establishes the guiding hole, and the elasticity adjusts the pole after half embedded in the guiding hole and with the coaxial distribution of guiding hole.

Furthermore, the positioning column is of a groove-shaped structure with the cross section in any one of a U-shaped shape and an isosceles trapezoid.

The utility model discloses simple structure, it is nimble convenient to adjust, when satisfying and carrying out the welding jobs needs with equipment such as welding lathe are supporting, can adjust the welding jobs working face in a flexible way in addition, and adjust the flexibility good, and the adjustment precision is high to very big improvement flexibility, commonality during this novel welding jobs, and can effectively satisfy multiple shaped steel material welding jobs's needs.

Drawings

FIG. 1 is a schematic diagram of the novel three-dimensional structure;

FIG. 2 is a schematic view of a partial structure of a connection relationship between a carrying base and a positioning mechanism;

FIG. 3 is a schematic view of a welding wire feed roller set;

FIG. 4 is a schematic view of a partial structure of the pulley;

fig. 5 is a partial structure schematic diagram of the traveling wheel.

Detailed Description

As shown in figures 1-5, a self-propelled welding joint structure for section steel comprises a positioning top plate 1, a bearing base 2, a positioning column 3, a pulley 4, a driving motor 5, a welding wire conveying roller set 6, a welding tip 7 and adjusting springs 8, wherein the upper end surface of the positioning column 2 is connected with the positioning top plate 1 and coaxially distributed, the axis of the positioning column 3 is vertically distributed with the horizontal plane, the bearing base 2 is of a plate-shaped structure with a rectangular cross section, the rear end surface of the bearing base is in sliding connection with the outer side surface of the positioning column 3 through a positioning mechanism 9 and is parallelly distributed, the side surface of the bearing base is connected with the side surface of the positioning column 3 through two adjusting springs 8, the adjusting springs 8 are symmetrically distributed on two sides of the positioning column 3, the axis of the adjusting springs and the bearing of the positioning column 3 form an included angle of 0-60 degrees, the front end surface of the bearing base 2 is connected with the upper end surface of the pulley 4 and is vertically distributed, the welding wire conveying roller set 6 is connected with the front end surface of the bearing base 2 and is positioned above the pulley 4, welding wire conveying roller set 6 is connected through the transmission shaft between 5 with driving motor, driving motor 5 with bear 2 rear end face of base and be connected and be located reference column 3 below, welding tip 7 inlays terminal surface under coaster 4 to with coaster 4 coaxial distribution, welding tip 7 up end is through contact tube 10 and welding wire conveying roller set 6 intercommunication, drive circuit 8 inlays in 1 side surface of location roof, and respectively with reference column 3, coaster 4, driving motor 5, welding tip 7 electrical connection.

In this embodiment, the positioning mechanism 9 includes a guide chute 91, a slider 92, an electromagnetic brake 93, a linear driving motor 94, and a displacement sensor 95, a rear end face of the guide chute 91 is connected to a rear end face of the positioning base 2 and is distributed in parallel with an axis of the positioning base 2, a rear half portion of the slider 92 is embedded in the guide chute 91 and is slidably connected to the guide chute 91, the linear driving motor 94 is embedded in a bottom of the guide chute 91 and is connected to a rear end face of the slider 92, a front end face of the slider 92 is connected to an outer side face of the positioning column 3, the electromagnetic brake 93 and the displacement sensor 95 are both connected to an outer side face of the slider 92 and are connected to the guide chute 91, and the electromagnetic brake 93, the linear driving motor 94, and the displacement sensor 95 are respectively electrically connected to the driving circuit 8.

It should be noted that the welding wire feeding roller set 6 includes a bearing plate 61, an adjusting bolt 62, a guiding sleeve 63, a driving roller 64 and a guiding roller 65, wherein the bearing plate 61 is connected with and parallel to the front end surface of the bearing base 1, the driving roller 64 and the guiding roller 65 are distributed from top to bottom along the axial direction of the bearing base 1, and the axes of the driving roller 64 and the guiding roller 65 are both distributed perpendicular to the front end surface of the bearing base 1, wherein the driving roller 64 is connected with the driving motor 5 through a transmission shaft, at least two guiding rollers 65 are distributed at two sides of the driving roller 64 at intervals, the bearing plate 61 corresponding to the guiding roller 65 is provided with an adjusting groove 66 whose axis is distributed perpendicular to the axis of the bearing base 1, the rear half part of the guiding roller 65 is embedded in the guiding sleeve 63 and coaxially distributed with the guiding sleeve 63, the guiding sleeve 63 is embedded in the adjusting groove 66 and is slidably connected with the side wall of the adjusting groove 66, each guide sleeve 63 is connected with the bearing plate 61 through an adjusting bolt 62, the adjusting bolts 62 and the adjusting grooves 66 are coaxially distributed, an adjusting screw hole 67 is formed in the position of the corresponding bearing plate 61, the adjusting bolts 62 are connected with the bearing plate 61 through the adjusting screw holes 67, the rear end face of each adjusting bolt abuts against the outer surface of the corresponding guide sleeve 63, and the front end face of each adjusting bolt is located outside the corresponding bearing plate 61.

It is important to explain that the tackle 4 includes a tackle body 41, traveling wheels 42, a meter counter 43, a traveling driving mechanism 44, a three-dimensional turntable mechanism 45, an angle sensor 46 and an inclination angle sensor 47, wherein the tackle body 41 has a cross section in a Jiong-shaped groove-shaped structure, at least two traveling wheels 42 are distributed on the front end surface and the rear end surface of the tackle body 41 along the axis of the tackle body 42 in a square shape, a bearing groove 48 is arranged at the center of the tackle body 41, the three-dimensional turntable mechanism 45 is embedded in the bearing groove 48 and coaxially distributed with the bearing groove 48, the lower end surface of the three-dimensional turntable mechanism 45 is connected with the welding tip 7, the distance between the lower end surface of the welding tip 7 and the bottom of the tackle body 41 is 0.3-5 times of the groove depth of the tackle body 41, the meter counter 43 is connected with the upper end surface of the tackle body 41 and is further connected with the traveling wheels 42 at the front end surface of the tackle body 41, the traveling driving mechanism 44 is connected with the rear end surface of the tackle body 41 and connected with the traveling wheels 42 at the rear end surface of the tackle body 41, the angle sensor 46 and the inclination angle sensor 47 are at least one, wherein the angle sensor 46 is connected with the three-dimensional rotating table mechanism 45, the inclination angle sensor 47 is connected with the outer surface of the welding tip 7, and the meter counter 43, the walking driving mechanism 44, the three-dimensional rotating table mechanism 45, the angle sensor 46 and the inclination angle sensor 47 are electrically connected with the driving circuit 8.

Preferably, the traveling wheel 42 includes a wheel frame 421, a transmission shaft 422, a roller 423, a protective side plate 424 and an elastic adjusting rod 425, the wheel frame 421 is a "Jiong" shaped groove-shaped frame structure, the upper end surface of the wheel frame is connected with the vehicle body 41 through a spring column 426, the axis of the wheel frame 421 is parallel to the axis of the vehicle body 41, the roller 423 is a cylindrical structure, covers the transmission shaft 422 and is coaxially distributed with the transmission shaft 422, two ends of the transmission shaft 422 are respectively vertically connected with the lower end surface of the side wall of the wheel frame 421, the protective side plate 424 is a circular plate-shaped structure coaxially distributed with the roller 423, covers the transmission shaft 422 and is symmetrically distributed on two sides of the roller 423, the diameter of the protective side plate 424 is at least 1.5 times the diameter of the roller 423, the protective side plate 424 is connected with the end surface of the roller 423 through at least two elastic adjusting rods 425, and the distance between the roller 423 and the protective side plate 424 is 0 to 3 times the width of the vehicle body 41, the elastic adjusting rod 425 and the roller body 423 are distributed in parallel and uniformly distributed around the axis of the roller body 423, a guide hole 427 is arranged at the end face of the roller body 423 corresponding to the elastic adjusting rod 425, and the rear half part of the elastic adjusting rod 427 is embedded in the guide hole 427 and is distributed coaxially with the guide hole 427.

In this embodiment, the positioning post 3 has a groove-like structure with a cross-section of one of a "u" shape and an isosceles trapezoid.

This is novel in the concrete implementation, at first assembles this neotype location roof of constitution, bearing the weight of base, reference column, coaster, driving motor, welding wire conveying roller set, welding nozzle and adjusting spring, then this neotype location roof after will assembling is connected with welding equipment, and make this neotype and horizontal plane vertical distribution, then pass through welding wire conveying roller set tractive guide with the welding wire that welding equipment supplied with and carry backward to the welding nozzle position, thereby satisfy welding operation's needs, control circuit and the welding circuit electrical connection with driving circuit and welding operation equipment at last, can accomplish the novel assembly of cost.

When welding operation is carried out, firstly, according to the depth and the width of the novel steel groove, on one hand, the distance between the wheel frame and the lower end face of the vehicle body, the distance between the pulley and the welding operation face and the pressure are adjusted through the positioning column and the spring column of the pulley, so that the distance between a welding tip and the welding operation face is adjusted; on the other hand, the distance between the whole body and the protection side is adjusted, so that the requirements of welding operation of channel steel workpieces with different structures are met, the flexibility of the novel use is effectively improved, and the requirements of different welding processes and welding of profile steel workpieces are met; then, the included angle between the welding tip and the welding operation surface is adjusted through the three-dimensional turntable mechanism, the requirement of welding operation is met, and therefore the novel welding operation adjustment is completed.

After the adjustment is completed, the welding tip is driven to perform welding operation during welding operation, the welding wire conveying roller set is driven to run through the driving motor, welding wires are provided for the welding tip by the welding wire conveying roller set so as to meet the requirement of the welding operation, meanwhile, during the welding operation, the displacement speed and the distance of the pulley during welding are detected by the meter counter and the traveling driving mechanism of the pulley, and the rotating speed of the driving motor is adjusted according to the speed and the welding distance of the welding operation, so that the welding wire supply is matched with the welding speed and the pulley displacement speed, the requirement of the welding operation is met, and the welding operation efficiency is improved.

Meanwhile, in the welding operation, the distance between the guide rollers can be adjusted through the adjusting bolts of the welding wire conveying roller group, so that the requirements of different direct welding wire conveying and supplying operations are met; on the other hand, the tension in the welding wire conveying process is adjusted, and the phenomenon that the welding wire is broken due to overlarge tension and is bent and deformed due to smaller tension is avoided, so that the welding operation quality is influenced.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a self-propelled welded joint structure of shaped steel which characterized in that: the self-propelled welding joint structure for the profile steel comprises a positioning top plate, a bearing base, a positioning column, a pulley, a driving motor, a welding wire conveying roller set, a welding nozzle, a driving circuit and adjusting springs, wherein the upper end surface of the positioning column is connected with the positioning top plate and coaxially distributed, the axis of the positioning column is vertically distributed with the horizontal plane, the bearing base is of a platy structure with a rectangular cross section, the rear end surface of the bearing base is in sliding connection and parallel distribution with the outer side surface of the positioning column through a positioning mechanism, the side surface of the bearing base is connected with the side surface of the positioning column through two adjusting springs, the adjusting springs are symmetrically distributed on two sides of the positioning column, the axis of the adjusting springs and a bearing of the positioning column form an included angle of 0-60 degrees, the front end surface of the bearing base is connected with the upper end surface of the pulley and vertically distributed, the welding wire conveying roller set is connected with the front end surface of the bearing base and positioned above the pulley, and the welding wire conveying roller set is connected with the driving motor through a transmission shaft, the welding torch is characterized in that the driving motor is connected with the rear end face of the bearing base and located below the positioning column, the welding torch is embedded in the lower end face of the pulley and is coaxially distributed with the pulley, the upper end face of the welding torch is communicated with the welding wire conveying roller set through the contact tube, and the driving circuit is embedded in the side surface of the positioning top plate and is electrically connected with the positioning column, the pulley, the driving motor and the welding torch respectively.

2. A shaped steel self-propelled weld joint configuration of claim 1, characterized in that: positioning mechanism include direction spout, slider, electromagnetic braking ware, linear drive motor, displacement sensor, direction spout rear end face and location base rear end face be connected and with location base axis parallel distribution, the latter half of slider inlays in the direction spout to with direction spout sliding connection, linear drive motor inlays in direction spout tank bottom to be connected with the slider rear end face, the terminal surface is connected with the reference column lateral surface before the slider, just electromagnetic braking ware and displacement sensor all are connected with the slider lateral surface to be connected with the direction spout, electromagnetic braking ware, linear drive motor, displacement sensor respectively with drive circuit electric connection.

3. A shaped steel self-propelled weld joint configuration of claim 1, characterized in that: the welding wire conveying roller group comprises a bearing plate, adjusting bolts, guide sleeves, a driving roller and guide rollers, wherein the bearing plate is connected with and parallel to the front end face of a bearing base, the driving roller and the guide rollers are distributed from top to bottom along the axial direction of the bearing base, the axial lines of the driving roller and the guide rollers are vertically distributed with the front end face of the bearing base, the driving roller is connected with a driving motor through a transmission shaft, at least two guide rollers are distributed at two sides of the driving roller at intervals, the bearing plate corresponding to the guide rollers is provided with adjusting grooves with axial lines vertically distributed with the axial line of the bearing base, the rear half parts of the guide rollers are embedded in the guide sleeves and are coaxially distributed with the guide sleeves, the guide sleeves are embedded in the adjusting grooves and are in sliding connection with the side walls of the adjusting grooves, each guide sleeve is connected with the bearing plate through an adjusting bolt, and the adjusting bolts are coaxially distributed with the adjusting grooves, and the corresponding position of the bearing plate is provided with an adjusting screw hole, the adjusting bolt is connected with the bearing plate through the adjusting screw hole, the rear end face of the adjusting bolt is abutted against the outer surface of the guide sleeve, and the front end face of the adjusting bolt is positioned outside the bearing plate.

4. A shaped steel self-propelled weld joint configuration of claim 1, characterized in that: the tackle comprises a tackle body, traveling wheels, a meter counter, a traveling driving mechanism, a three-dimensional turntable mechanism, an angle sensor and an inclination angle sensor, wherein the tackle body is of a structure with a cross section in the shape of an Jiong-shaped groove, at least two traveling wheels are distributed on the front end surface and the rear end surface of the tackle body along the axis of the tackle body in a square manner, a bearing groove is arranged at the center position of the tackle body, the three-dimensional turntable mechanism is embedded in the bearing groove and is coaxially distributed with the bearing groove, the lower end surface of the three-dimensional turntable mechanism is connected with a welding nozzle, the distance between the lower end surface of the welding nozzle and the bottom of the tackle body groove is 0.3-5 times of the depth of the tackle body groove, the meter counter is connected with the upper end surface of the tackle body and is also connected with the traveling wheels on the front end surface of the tackle body, the traveling driving mechanism is connected with the rear end surface of the tackle body and is mutually connected with the traveling wheels on the rear end surface of the tackle body, and the angle sensor and the inclination angle sensor are at least one, the meter counter, the walking driving mechanism, the three-dimensional rotary table mechanism, the angle sensor and the inclination angle sensor are all electrically connected with the driving circuit.

5. A shaped steel self-propelled weld joint structure of claim 4, characterized in that: the travelling wheel comprises a wheel carrier, a transmission shaft, a roller body, a protective side plate and an elastic adjusting rod, wherein the wheel carrier is of an Jiong-shaped groove-shaped frame structure, the upper end surface of the wheel carrier is connected with a vehicle body through a spring column, the axis of the wheel carrier is distributed in parallel with the axis of the vehicle body, the roller body is of a cylindrical structure, the protective side plate is coated outside the transmission shaft and distributed coaxially with the transmission shaft, the two ends of the transmission shaft are respectively and vertically connected with the lower end surface of the side wall of the wheel carrier, the protective side plate is of a circular plate-shaped structure which is distributed coaxially with the roller body and is coated outside the transmission shaft and symmetrically distributed on the two sides of the roller body, the diameter of the protective side plate is at least 1.5 times of the diameter of the roller body, the protective side plate is connected with the end surface of the roller body through at least two elastic adjusting rods, the distance between the roller body and the protective side plate is 0 to 3 times of the width of the vehicle body, the elastic adjusting rods are distributed in parallel with the axis of the roller body and are uniformly distributed around the axis, and the end surface of the roller body corresponding to the elastic adjusting rods are provided with guide holes, and the rear half part of the elastic adjusting rod is embedded in the guide hole and is coaxially distributed with the guide hole.

6. A shaped steel self-propelled weld joint configuration of claim 1, characterized in that: the positioning column is of a groove-shaped structure with the cross section in any one of a U-shaped shape and an isosceles trapezoid.