A hot galvanizing steel material precision alignment welding integrated machine

Abstract

The present application relates to the technical field of steel welding, and particularly relates to a hot-dip galvanizing steel precise alignment welding integrated machine, which comprises two groups of mirror image arranged conveying tables, two groups of conveying chains arranged in the conveying tables, a plurality of step-by-step clamping assemblies for clamping and butt joint of the hot-dip galvanizing steel are equidistantly arranged between the conveying chains, and a straightening welding assembly for welding and alignment correction of the butt joint hot-dip galvanizing steel is arranged between the two groups of conveying tables; the conveying table and the step-by-step clamping assembly are combined to realize conveying type automatic feeding and discharging treatment of the hot-dip galvanizing steel pipe, the material conveying processing convenience is improved, the multi-point wrapping type reinforced clamping conveying treatment is carried out, the anti-inclination type center butt joint treatment of the two groups of hot-dip galvanizing steel pipes at the welding position is realized, and the precision of the welding position is assisted; in addition, the straightening welding assembly is matched, the end bending and inclining self-checking and correction are carried out before welding, and the high-quality precise alignment welding effect is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel welding, and in particular to a hot-dip galvanized steel precise alignment welding integrated machine. BACKGROUND

[0002] Hot-dip galvanized steel pipes are widely used in many industrial fields such as building, machinery manufacturing, coal mining, chemical engineering, railway vehicle production, automobile industry, highway bridge construction, container manufacturing, sports facility construction, agricultural machinery, oil drilling and production equipment, and prospecting machinery due to their excellent corrosion resistance and mechanical strength. In the production and processing process of hot-dip galvanized steel pipes, in order to meet the length requirements of different application scenarios, two or more steel pipes are usually welded and connected to obtain a steel pipe with the required length for use.

[0003] As disclosed in the prior art, a hot-dip galvanized steel welding and processing equipment (CN115533441A) is provided, which realizes multi-station fixing of hot-dip galvanized steel pipes through two groups of rotating discs and multiple chucks arranged in a ring shape on the rotating discs, allowing the disassembly and assembly of the steel pipes while welding. Although this equipment can achieve high-efficiency welding processing, for longer steel pipes, the fixed point far from the welding end will be difficult to ensure the straight and horizontal state of the fixed end and the welding end of the steel pipe due to the influence of the gravity of the steel pipe itself, resulting in difficulty in precise alignment when the welding ends of the two steel pipes are connected, thereby affecting the welding quality. In addition, there is no structure for self-checking and correcting the inclination of the end of the steel pipe, which cannot effectively solve the welding quality problem caused by the inclination of the end of the steel pipe, and cannot achieve high-quality welding processing.

[0004] In view of the above technical defects, a solution is proposed. SUMMARY

[0005] The purpose of the present application is to provide a hot-dip galvanized steel precise alignment welding integrated machine to solve the above technical defects.

[0006] The purpose of the present application can be achieved by the following technical solution: a hot-dip galvanized steel precise alignment welding integrated machine, comprising two groups of mirror image arranged conveying tables, and two groups of conveying chains arranged inside the conveying tables, a plurality of step-by-step clamping assemblies for clamping and connecting are installed equidistantly between the conveying chains, and a correction welding assembly for welding and alignment correction is arranged between the two groups of conveying tables.

[0007] The step-by-step clamping assembly comprises a docking table, a conveying plate slidingly connected with the docking table and installed between the conveying chains, the straightening welding assembly comprises a mounting shell fixed between the two sets of conveying tables and in a U shape, a rotating drum in a C shape is rotatably connected inside the mounting shell, and a welding robot is installed on the inner wall of the rotating drum.

[0008] Preferably, rotating rods are rotatably connected at both ends of the conveying table, and conveying sprockets drivingly connected with the conveying chains are fixed to the rotating rods, an auxiliary seat is fixedly connected inside the conveying table, and a plurality of rolling balls in rolling contact with the conveying table and the auxiliary seat are rollingly embedded on the conveying plate.

[0009] Preferably, a V-shaped groove is formed on one side of the top of the auxiliary seat, a limiting conveying groove is formed on the auxiliary seat and in communication with both ends of the V-shaped groove, and a guide column is fixed to the bottom of the docking table and slidingly connected with the limiting conveying groove.

[0010] Preferably, mounting seats are fixed to both sides of the top of the docking table, two sets of trapezoidal sliding blocks are slidingly connected in the mounting seats, clamping springs are installed between the trapezoidal sliding blocks and the mounting seats, and clamping plates are fixedly installed on the top of the trapezoidal sliding blocks.

[0011] Preferably, trapezoidal blocks are slidingly connected between the inclined surfaces of the two sets of trapezoidal sliding blocks, a pushing block is fixedly connected to one side of the trapezoidal block and slidingly connected with the mounting seat, guide seats are fixedly connected to each corner of the top of the conveying table and matched with the corresponding pushing block, and a guide inclined surface is formed on one side of the guide seat.

[0012] Preferably, flexible octopus claws are fixedly installed on the top of the clamping plate, and the wavy side of the flexible octopus claws is located on the side of the clamping plate close to the clamping spring.

[0013] Preferably, a cavity is formed in the docking table, a piston block is sealingly slidingly connected inside the cavity, an ear plate is fixed to the top of the conveying plate away from the mounting shell, a supporting rod is fixed between the ear plate and the piston block and sealingly slidingly connected with the docking table, and a high-pressure hose is connected between the cavity and the flexible octopus claws.

[0014] Preferably, two sets of auxiliary guide plates are symmetrically fixed to the arc-shaped outer wall of the mounting shell away from the opening, and the free sides of the two sets of auxiliary guide plates are oppositely and obliquely arranged close to each other.

[0015] Preferably, a gear ring is fixedly connected to the inner wall of the rotating drum, two sets of rotating shafts are rotatably connected to the mounting shell, a transmission sprocket and a gear meshing with the gear ring are fixed to the rotating shafts, the transmission sprockets are drivingly connected through a transmission chain, and a driving motor driving the corresponding rotating shaft to rotate is installed on the mounting shell through bolts.

[0016] Preferably, a plurality of electric push rods are fixedly installed on the annular inner wall of the mounting shell and located on both sides of the rotating drum, and the end of the electric push rod is provided with a correction block; an infrared distance sensor is arranged on the inner wall of the rotating drum and located on both sides of the welding robot; and a control panel is installed on one of the conveying tables.

[0017] The beneficial effects of the present application are as follows:

[0018] (1) In the process of moving the plurality of conveying plates by the conveying chain wheel and the conveying chain on the conveying table, the hot galvanized steel pipe is supported at multiple points, and the automatic elastic clamping and automatic feeding and discharging after welding are achieved by combining the guide seat. The automatic adjustment of the distance between the welding end of the hot galvanized steel pipe and the conveying table is realized by the elastic clamping and the auxiliary guide plate, which lays the foundation for the subsequent centering butt joint of the welding end. In addition, the guide of the guide column by the limiting conveying groove and the V-shaped groove enables the corresponding hot galvanized steel pipes on the two conveying tables to move synchronously and relatively, realizes automatic butt joint processing, and cooperates with the circumferentially rotating welding robot to achieve the effect of conveying type welding station processing.

[0019] (2) The present application pushes the internal liquid into the plurality of flexible octopus claws by moving the piston block in the cavity, which makes the flexible octopus claws on both sides of the hot galvanized steel pipe bend relatively, further wraps and clamps the top and both sides of the hot galvanized steel pipe circumferentially, and achieves multi-point wrapping and clamping fixation, eliminating the problem of unstable clamping of the clamping plate during butt welding, which affects the welding quality.

[0020] (3) Before welding, the present application supports the hot galvanized steel pipe at multiple points by the two groups of mounting seats on the butt joint table, and realizes the parallel conveying of multiple hot galvanized steel pipes by the multi-point wrapping clamping of the corresponding clamping plate and flexible octopus claw, thereby effectively avoiding the problem of inclined conveying leading to poor welding quality.

[0021] Then, the infrared distance sensor is driven to rotate circumferentially by the rotation of the rotating drum, realizes the data acquisition of the distance between the infrared distance sensor and the circumferential side wall of the corresponding hot galvanized steel pipe welding end, compares the distance data of the circumferential side walls of the two groups of hot galvanized steel pipes by the controller in the control panel, realizes the self-checking of whether the steel pipe welding end is bent and inclined, and realizes the inclined correction by moving the correction block driven by the plurality of electric push rods, thereby achieving the effect of high-quality and precise alignment welding. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below with reference to the accompanying drawings;

[0023] Figure 1 is a structural schematic view of the present application;

[0024] Figure 2Is the cooperation schematic diagram of the step-by-step clamping assembly and the conveying table of the present application;

[0025] Figure 3 Is the structural schematic diagram of the conveying table of the present application;

[0026] Figure 4 Is the structural schematic diagram of the step-by-step clamping assembly of the present application;

[0027] Figure 5 Is the structural schematic diagram of the conveying plate of the present application Figure 1 ;

[0028] Figure 6 Is the structural schematic diagram of the conveying plate of the present application Figure 2 ;

[0029] Figure 7 Is the installation schematic diagram of the clamping plate of the present application;

[0030] Figure 8 Is the structural schematic diagram of the butt joint plate of the present application;

[0031] Figure 9 Is the structural schematic diagram of the straightening welding assembly of the present application;

[0032] Figure 10 Is the structural schematic diagram of the installation shell of the present application Figure 1 ;

[0033] Figure 11 Is the structural schematic diagram of the installation shell of the present application Figure 2 ;

[0034] Figure 12 Is the distance measuring schematic diagram of each measuring point of the hot-dip galvanized steel pipe of the present application;

[0035] Figure 13 Is the simultaneous time measuring distance measuring schematic diagram of the measuring points of the two groups of butt joint hot-dip galvanized steel pipes of the present application.

[0036] Legend:

[0037] 1, conveying table; 11, auxiliary seat; 12, V-shaped groove; 13, limiting conveying groove; 14, guide seat; 15, control panel;

[0038] 2, step-by-step clamping assembly; 21, conveying plate; 22, butt joint table; 23, clamping plate; 24, guide column; 25, mounting seat; 26, trapezoidal sliding block; 27, clamping spring; 28, trapezoidal block; 29, push block; 210, flexible octopus claw; 211, cavity; 212, piston block; 213, supporting rod; 214, high-pressure hose;

[0039] 3, straightening and welding assembly; 31, mounting shell; 32, rotating drum; 33, welding robot; 34, auxiliary guide plate; 35, gear ring; 36, gear; 37, electric push rod; 38, straightening block. DETAILED DESCRIPTION

[0040] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0041] Embodiment one: please refer to Figures 1-4 , Figure 6 , Figure 7 and Figures 9-13 , in order to solve the problems that it is difficult to prevent the hot galvanized steel pipe from being inclined butt joint processing and prevent the end from being inclined in the prior art, and the welding quality is low, the following scheme can be used to solve the problems:

[0042] The hot galvanized steel material precise alignment welding machine in the embodiment comprises two groups of mirror image arranged conveying tables 1 and two groups of conveying chains arranged inside the conveying tables 1, a plurality of step-by-step clamping assemblies 2 for clamping and butt joint of the hot galvanized steel material are equidistantly arranged between the conveying chains, and a straightening and welding assembly 3 for welding and alignment correction of the butt joint hot galvanized steel material is arranged between the two groups of conveying tables 1.

[0043] The step-by-step clamping assembly 2 comprises a butt joint table 22 and a conveying plate 21 slidably connected with the butt joint table 22 and arranged between the conveying chains, two groups of clamping plates 23 are arranged on both sides of the top of the butt joint table 22, a plurality of hot galvanized steel pipes are clamped by the plurality of groups of clamping plates 23 in relative motion, and the horizontal movement of the conveying plate 21 realizes the parallel conveying of the plurality of hot galvanized steel pipes, thereby effectively avoiding the problem of welding quality caused by inclined conveying;

[0044] The straightening and welding assembly 3 comprises a mounting shell 31 fixed between the two groups of conveying tables 1 and in a U shape, the mounting shell 31 in an open shape is used for output after welding of the two groups of hot galvanized steel pipes, a rotating drum 32 in a C shape is rotatably connected in the mounting shell 31, a welding robot 33 is arranged on the inner wall of the rotating drum 32, the two groups of hot galvanized steel pipes on the two groups of conveying tables 1 are in relative motion for butt joint processing, and the welding robot 33 in circumferential rotation is matched to realize the effect of conveying type welding station processing.

[0045] Both ends of the conveying table 1 are rotationally connected with rotating rods, and the rotating rods are fixedly connected with conveying sprockets in transmission connection with the conveying chains, one rotating rod on each of the two sets of conveying tables 1 is driven by an external servo motor, and the rotating speeds of the two rotating rods are equal, the rotating rods and the conveying sprockets drive the conveying plates 21 to move at the same speed, and the conveying plates 21 on the two sets of conveying tables 1 move at the same speed one by one in correspondence;

[0046] The inside of the conveying table 1 is fixedly connected with an auxiliary seat 11, and a plurality of rolling balls in rolling contact with the conveying table 1 and the auxiliary seat 11 are embedded on the conveying plates 21 in rolling manner, the auxiliary seat 11 and the rolling balls on the conveying plates 21 are arranged to achieve the effect of preventing the conveying plates 21 from deviating and moving smoothly during movement above the conveying table 1.

[0047] A V-shaped groove 12 is formed on one side of the top of the auxiliary seat 11, and a limiting conveying groove 13 is formed on the auxiliary seat 11 and communicates with both ends of the V-shaped groove 12, a guide column 24 is fixedly connected to the bottom of the docking table 22 and is in sliding connection with the limiting conveying groove 13, during movement of the conveying plates 21, the guide column 24 slides in the limiting conveying groove 13 to limit the relative sliding between the docking table 22 and the conveying plates 21, when the guide column 24 enters the V-shaped groove 12, the guide column 24 is guided by the V-shaped groove 12 to push the docking tables 22 on both sides of the mounting shell 31 to move synchronously and relatively, and the docking of the ends of the galvanized steel pipes on both sides is completed.

[0048] Mounting seats 25 are fixedly connected to the top of the docking table 22 on both sides, the mounting seats 25 are arranged to support the galvanized steel pipes in a multi-point manner to prevent the galvanized steel pipes from being bent due to their own gravity, and two sets of trapezoidal slides 26 are in sliding connection in the mounting seats 25, clamping springs 27 are arranged between the trapezoidal slides 26 and the mounting seats 25, clamping plates 23 are fixedly installed on the top of the trapezoidal slides 26, the galvanized steel pipes are placed between the clamping plates 23 on the top of the mounting seats 25, and the trapezoidal slides 26 are pushed to move under the compression force of the clamping springs 27, so that the galvanized steel pipes are elastically clamped in the center by the clamping plates 23.

[0049] A trapezoidal block 28 is in sliding connection between the inclined surfaces of the two sets of trapezoidal slides 26, one side of the trapezoidal block 28 is fixedly connected with a pushing block 29 in sliding connection with the mounting seat 25, driving the pushing block 29 to move drives the trapezoidal block 28 to move between the two sets of trapezoidal slides 26, so that the two sets of trapezoidal slides 26 carry the clamping plates 23 away from the movement and compress the corresponding clamping springs 27, which facilitates the placement of the galvanized steel pipes between the clamping plates 23 on the top of the mounting seats 25 and the automatic falling treatment of the conveying plates 21 during movement to the lower side of the conveying table 1, and achieves the effect of automatic unloading;

[0050] The top corners of the conveying table 1 are fixedly connected with guide seats 14 matched with the corresponding push blocks 29, and one side of the guide seat 14 is provided with a guide inclined surface. During the movement of the conveying plate 21 from below to above the auxiliary seat 11 on the side of the conveying table 1 away from the mounting shell 31, the two groups of push blocks 29 on the docking table 22 enter between the corresponding two side guide seats 14, and the two groups of push blocks 29 are relatively moved in combination with the guide inclined surface on the guide seat 14;

[0051] The push block 29 drives the trapezoidal block 28 to move between the two groups of trapezoidal sliding blocks 26. The push block 29 on the docking table 22 is in contact with the guide seat 14 on the side of the conveying table 1 close to the mounting shell 31, so that the clamping plate 23 is separated from the galvanized steel pipe, and the docking table 22 is moved to below the auxiliary seat 11 in combination with the conveying plate 21, so that the automatic unloading of the welded galvanized steel pipe is realized.

[0052] The arc-shaped outer wall on the side of the mounting shell 31 away from the opening is symmetrically fixedly connected with two groups of auxiliary guide plates 34, and the free sides of the two groups of auxiliary guide plates 34 are relatively close and obliquely arranged. The galvanized steel pipe is placed between the clamping plates 23 on the top of the mounting seat 25. The conveying plate 21 drives the galvanized steel pipe to be horizontally fed under the driving of the conveying chain. Through the cooperation of the auxiliary guide plates 34 on the mounting shell 31, the two groups of corresponding galvanized steel pipes are first moved away from each other, and the opposite ends of the two groups of galvanized steel pipes are in sliding contact with the guide plates and the outer wall of the mounting shell 31, so that the automatic adjustment of the distance between the welded end of the galvanized steel pipe and the conveying table 1 is realized, which lays a foundation for the subsequent centering and docking of the welded end.

[0053] The inner wall of the rotating drum 32 is fixedly connected with a gear ring 35. Two groups of rotating shafts are rotatably connected to the mounting shell 31, and a transmission sprocket and a gear 36 meshing with the gear ring 35 are fixedly connected to the rotating shafts. The transmission sprockets are drivingly connected by a transmission chain. The mounting shell 31 is provided with a driving motor driving the corresponding rotating shafts to rotate by bolts. After the welded ends of the two groups of galvanized steel pipes are in abutting contact, the driving motor drives the corresponding rotating shafts to rotate, which drives the two groups of gears 36 to rotate in combination with the transmission sprocket and the transmission chain, and drives the rotating drum 32 to rotate circumferentially through the meshing gears 36 and the gear ring 35.

[0054] A plurality of electric push rods 37 are fixedly installed on the annular inner wall of the mounting shell 31 and located on both sides of the rotating drum 32, and a correction block 38 is installed at the push rod end of the electric push rod 37. An infrared distance sensor is arranged on the inner wall of the rotating drum 32 and located on both sides of the welding robot 33. A control panel 15 is installed on one group of conveying tables 1;

[0055] The driving motor drives the rotating drum 32 to rotate circumferentially by one turn through the meshing gears 36 and the gear ring 35, and the two groups of infrared distance sensors respectively collect data on the distance between the circumferential side wall of the corresponding galvanized steel pipe end and the infrared distance sensor.

[0056] For example: through two groups of infrared distance sensors, the distances between the a, b, c, d measuring points on the circumference of the corresponding ends of the hot-dip galvanized steel pipe are measured respectively to obtain interval data, the interval data are a1, a2, b1, b2, c1, c2, d1 and d2 respectively, and the interval data are transmitted to the controller in the control panel 15 for comparison, when a1=a2, b1=b2, c1=c2, d1=d2, the reverse reset signal and the welding signal are generated;

[0057] The reverse reset signal controls the driving motor to drive the rotating drum 32 to carry the welding robot 33 to rotate reversely for one circle, and in the rotating process of the welding robot 33, the welding signal controls the welding robot 33 to perform circumferential welding on the welding end of the hot-dip galvanized steel pipe;

[0058] When a1≠a2, c1≠c2 or b1≠b2, d1≠d2 occurs, the controller generates an end correction alignment signal to control the electric push rod 37 corresponding to the a, b, c, d measuring point position to push the correction block 38 to move, and the clamping type straightening is performed on the welding inclined end of the hot-dip galvanized steel pipe, and after correction, the controller generates the reverse reset signal and the welding signal for normal high-precision welding processing.

[0059] Example two: please refer to Figure 5 、 Figure 7 and Figure 8 As shown, in order to solve the problem that only the clamping plate elastically clamps the hot-dip galvanized steel pipe during butt welding, which causes unstable clamping and affects the welding quality, the following scheme can be used to solve the problem:

[0060] In this embodiment, the top of the clamping plate 23 is fixedly installed with flexible octopus claws 210, and the wave side of the flexible octopus claws 210 is located on the side of the clamping plate 23 close to the clamping spring 27. The two groups of flexible octopus claws 210 on the mounting seat 25 are staggered, so that when the flexible octopus claws 210 on both sides of the hot-dip galvanized steel pipe are relatively bent, the ends of the two do not interfere with each other, thereby further achieving circumferential wrapping clamping on both sides and the top of the hot-dip galvanized steel pipe, assisting the clamping plate 23 to achieve multi-point reinforced clamping and fixing, and eliminating the instability of the elastic clamping of the clamping plate 23.

[0061] The inside of the butt joint table 22 is provided with a cavity 211, and the cavity 211 is filled with liquid. Compared with air, the liquid has a smaller compression ratio, so that the flexible octopus claws 210 have a stronger wrapping force when they are bent, thereby improving the fixing effect on the hot-dip galvanized steel pipe. The side wall of the flexible octopus claw 210 is thickened to avoid damage.

[0062] And the inside of the cavity 211 is sealingly connected with a piston block 212, the top of the conveying plate 21 is fixedly connected with an ear plate away from the side of the mounting shell 31, the ear plate is fixedly connected with a supporting rod 213 sealingly connected with the docking table 22, and the cavity 211 is connected with a flexible octopus claw 210 through a high-pressure hose 214;

[0063] By sliding the docking table 22 on the top of the conveying plate 21, the piston block 212 is caused to slide in the cavity 211, and the liquid in the cavity 211 is injected into the flexible octopus claw 210 on the top of the clamping plate 23 through the high-pressure hose 214, so that the flexible octopus claws 210 on both sides of the hot-dip galvanized steel pipe are relatively bent;

[0064] After the precise alignment and welding of the two groups of hot-dip galvanized steel pipes are completed, the servo motor is controlled again to rotate, so that the conveying plate 21 drives the welded hot-dip galvanized steel pipe to move horizontally out of the mounting shell 31, and under the guidance of the guide column 24 in the V-shaped groove 12, the corresponding docking table 22 is driven to reset, and the piston block 212 moves relatively in the cavity 211 to suck the liquid in the flexible octopus claw 210 back into the cavity 211.

[0065] Embodiment three: please refer to Figures 1-13 As shown in the drawings, the application also provides a use method of the precise alignment and welding all-in-one machine for hot-dip galvanized steel materials, which comprises the following steps:

[0066] Step one: one of the two rotating rods on the conveying table 1 is driven by the servo motor, and the rotating speeds of the two rotating rods are equal, the rotating rods drive the plurality of conveying plates 21 to move in combination with the conveying sprocket and the conveying chain, and the conveying plates 21 on the two conveying tables 1 move at the same speed one by one;

[0067] Step two: during the movement of the conveying plate 21 from the side of the conveying table 1 away from the mounting shell 31 to above the auxiliary seat 11, the two groups of pushing blocks 29 on the docking table 22 enter between the corresponding two guide seats 14, and in combination with the guide inclined surface on the guide seat 14, the two groups of pushing blocks 29 are caused to move relatively, the pushing block 29 drives the trapezoidal block 28 to move between the two groups of trapezoidal sliding blocks 26, so that the two groups of trapezoidal sliding blocks 26 carry the clamping plate 23 to move away and compress the corresponding clamping spring 27, the hot-dip galvanized steel pipe is placed between the clamping plates 23 on the top of the mounting seat 25, and the hot-dip galvanized steel pipe is driven to be horizontally fed;

[0068] Step three: after the push block 29 is separated from the corresponding guide seat 14, the trapezoidal sliding block 26 moves relative to the compression spring 27 under the compression elastic force of the clamping spring 27, the hot galvanized steel pipe is elastically and centrally clamped by the clamping plate 23, and the two groups of push blocks 29 are reset to move away from the movement, with the continuous movement of the conveying plate 21 above the auxiliary seat 11, the guide column 24 slides in the limiting conveying groove 13 to limit the relative sliding between the butt joint table 22 and the conveying plate 21;

[0069] Through the cooperation of the auxiliary guide plate 34 on the mounting shell 31, the two groups of corresponding hot galvanized steel pipes are first moved away from each other, and the opposite ends of the two groups of hot galvanized steel pipes slide against the guide plate and the outer wall of the mounting shell 31 until the guide column 24 enters the V-shaped groove 12. Under the guidance of the V-shaped groove 12, the mounting shell 31 on both sides carries the hot galvanized steel pipe and moves synchronously relative to the butt joint table 22, completing the central butt joint of the ends of the hot galvanized steel pipes on both sides, and stopping the rotation of the servo motor in the external environment;

[0070] Step four: through the sliding of the butt joint table 22 on the top of the conveying plate 21, the piston block 212 is caused to slide in the cavity 211 by the branch rod 213, the liquid in the cavity 211 is injected into the flexible octopus sucker 210 on the top of the clamping plate 23 through the high-pressure hose 214, the flexible octopus sucker 210 on both sides of the hot galvanized steel pipe is caused to bend relative to each other, and further circumferential wrapping clamping is performed on both sides and the top of the hot galvanized steel pipe, achieving multi-point reinforced clamping and fixing treatment, and eliminating the instability of the elastic clamping of the clamping plate 23;

[0071] Step five: after the welding ends of the two groups of hot galvanized steel pipes are butted and contacted, the driving motor drives the corresponding rotating shaft to rotate, the two groups of gears 36 are driven to rotate by the transmission sprocket and the transmission chain, and the rotating drum 32 is driven to rotate one circle in the circumferential direction by the meshing gears 36 and the toothed ring 35. The distance between the two groups of infrared distance sensors and the corresponding circumferential side walls of the hot galvanized steel pipe ends is collected by the two groups of infrared distance sensors respectively.

[0072] The distance data is transmitted to the controller in the control panel 15 for comparison. When the distance data corresponding to the two groups of infrared distance sensors is equal, a reverse reset signal and a welding signal are generated. The reverse reset signal controls the driving motor to drive the rotating drum 32 to carry the welding robot 33 to rotate in the reverse direction for one circle. During the rotation of the welding robot 33, the welding signal controls the welding robot 33 to perform circumferential welding on the welding end of the hot galvanized steel pipe.

[0073] Step six: when the distance data corresponding to the two groups of infrared distance sensors is not equal, the controller generates an end correction alignment signal to control multiple electric push rods 37 to push the correction block 38 to move, and the clamping type straightening of the welding inclined end of the hot galvanized steel pipe is performed. After correction, the controller generates a reverse reset signal and a welding signal.

[0074] Step seven: the rotary drum 32 reverses a circle, and the precise alignment of the two groups of hot galvanized steel pipe end welding is completed. The servo motor outside is controlled to rotate again, which promotes the conveying plate 21 to drive the welded hot galvanized steel pipe to move horizontally out of the installation shell 31, and under the guidance of the guide column 24 in the V-shaped groove 12, the corresponding docking table 22 is driven to reset, and the piston block 212 moves relatively in the cavity 211 to suck the liquid in the flexible octopus claw 210 back to the cavity 211.

[0075] The flexible octopus claw 210 expands and separates from the hot galvanized steel pipe, the clamping plate 23 elastically clamps the hot galvanized steel pipe, so that the hot galvanized steel pipe and the clamping plate 23 can slide relatively again, until the pushing block 29 on the docking table 22 contacts the guide seat 14 close to the side of the conveying table 1 near the installation shell 31, which promotes the clamping plate 23 to separate from the hot galvanized steel pipe, and the docking table 22 is moved to the lower side of the auxiliary seat 11 by the conveying plate 21, so as to automatically discharge the welded hot galvanized steel pipe.

[0076] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A precision alignment and welding machine for hot-dip galvanized steel profiles, comprising two sets of mirror-arranged conveyor tables (1), and two sets of conveyor chains located inside the conveyor tables (1), characterized in that, Multiple step-by-step clamping components (2) for clamping and docking are installed at equal intervals between the conveyor chains, and a straightening welding component (3) for welding and alignment is provided between the two sets of conveyor tables (1). The step-by-step clamping assembly (2) includes a docking platform (22) and a conveyor plate (21) slidably connected to the docking platform (22) and installed between the conveyor chains. The straightening welding assembly (3) includes a U-shaped mounting shell (31) fixed between the two sets of conveyor platforms (1). A C-shaped rotating cylinder (32) is rotatably connected inside the mounting shell (31). A welding robot (33) is installed on the inner wall of the rotating cylinder (32). The top two sides of the docking platform (22) are fixedly connected to the mounting base (25), and two sets of trapezoidal sliders (26) are slidably connected in the mounting base (25). A clamping spring (27) is installed between the trapezoidal slider (26) and the mounting base (25), and a clamping plate (23) is fixedly installed on the top of the trapezoidal slider (26). A trapezoidal block (28) is slidably connected between the inclined surfaces of the two sets of trapezoidal sliders (26), and a push block (29) that is slidably connected to the mounting base (25) is fixedly connected to one side of the trapezoidal block (28). A guide seat (14) that cooperates with the corresponding push block (29) is fixedly connected to each corner of the top of the conveying table (1), and a guide inclined surface is provided on one side of the guide seat (14). A flexible octopus claw (210) is fixedly installed on the top of the clamping plate (23), and the wavy side of the flexible octopus claw (210) is located on the side of the clamping plate (23) close to the clamping spring (27). The docking platform (22) has a cavity (211) inside, and a piston block (212) is slidably connected inside the cavity (211). An ear plate is fixedly connected to the top of the conveying plate (21) on the side away from the mounting shell (31). A support rod (213) is fixedly connected between the ear plate and the piston block (212) and slidably connected to the docking platform (22). A high-pressure hose (214) is connected between the cavity (211) and the flexible octopus claw (210).

2. The integrated machine for precise alignment and welding of hot-dip galvanized steel profiles according to claim 1, characterized in that, Both ends of the conveyor platform (1) are rotatably connected to rotating rods, and the rotating rods are fixedly connected to conveyor sprockets that are connected to the conveyor chain drive. An auxiliary seat (11) is fixedly connected inside the conveyor platform (1), and multiple balls that roll in contact with the conveyor platform (1) and the auxiliary seat (11) are rolled on the conveyor plate (21).

3. The integrated machine for precise alignment and welding of hot-dip galvanized steel profiles according to claim 2, characterized in that, The auxiliary seat (11) has a V-shaped groove (12) on one side of its top, and a limiting conveying groove (13) connected to both ends of the V-shaped groove (12) is provided on the auxiliary seat (11). The bottom of the docking platform (22) is fixedly connected to a guide column (24) that is slidably connected to the limiting conveying groove (13).

4. The integrated machine for precise alignment and welding of hot-dip galvanized steel profiles according to claim 1, characterized in that, Two sets of auxiliary guide plates (34) are symmetrically fixed on the arc-shaped outer wall of the mounting shell (31) away from the opening, and the free sides of the two sets of auxiliary guide plates (34) are inclined and relatively close to each other.

5. The integrated machine for precise alignment and welding of hot-dip galvanized steel profiles according to claim 1, characterized in that, A toothed ring (35) is fixedly connected to the inner wall of the rotating drum (32). Two sets of rotating shafts are rotatably connected to the mounting shell (31), and a transmission sprocket and a gear (36) meshing with the toothed ring (35) are fixedly connected to the rotating shaft. The transmission sprockets are connected to each other by a transmission chain. A drive motor that drives the corresponding rotating shaft to rotate is installed on the mounting shell (31) by bolts.

6. The integrated machine for precise alignment and welding of hot-dip galvanized steel profiles according to claim 1, characterized in that, Multiple annularly distributed electric push rods (37) are fixedly installed on the annular inner wall of the mounting shell (31) and on both sides of the rotating drum (32). The push rod ends of the electric push rods (37) are equipped with correction blocks (38). Infrared ranging sensors are provided on the inner wall of the rotating drum (32) and on both sides of the welding robot (33). A control panel (15) is installed on a set of conveyor tables (1).

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