Automated steel pipe processing production line and working method

Abstract

The present invention is applicable to the technical field of steel pipe processing and production, and provides an automated steel pipe processing production line and a working method, including a transfer component, a correction component and a forming component arranged on the side wall of the transfer component, wherein the correction component and the forming component are arranged side by side, and the device solves the problem that the existing steel pipe production device only performs external welding, but does not perform internal welding, which affects the welding strength. The device sets an inner wall welding mechanism, and the I-shaped plate moves inside the positioning cylinder and drives the inner wall welding wheel to move, thereby achieving the purpose of continuous welding of the inner wall of the steel pipe by the inner wall welding wheel, and the inner wall welding wheel and the outer wall welding wheel are used to cooperate with each other to simultaneously weld the inside and outside of the butt joint of the steel pipe raw material, thereby solving the problem that the existing steel pipe production device only performs external welding, but does not perform internal welding, which affects the welding strength, and does not need to be affected by the diameter size of the steel pipe, that is, the purpose of internal welding can be achieved inside a small diameter steel pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of steel pipe processing and production, and more specifically, to an automated steel pipe processing production line and a working method. Background Art

[0002] Steel pipe is a common industrial material, widely used in construction, petroleum, chemical industry, machinery manufacturing and other industries. The choice of steel pipe depends on the specific application requirements, including the pressure, temperature, chemical environment, etc. The shorter steel pipe workpiece is made by rolling the steel plate into a cylinder through a plate rolling machine and welding it into a steel pipe, which is a common manufacturing process.

[0003] During the production of existing shorter steel pipes, the steel pipe raw material is firstly rolled into a cylinder by a pipe rolling mechanism, and then the outer wall of the splicing position of the steel pipe is welded to achieve the purpose of producing the steel pipe. However, this method is cumbersome to operate and different devices need to be replaced for different processing. For this reason, the staff has improved the existing production method, that is, the steel plate is placed on the workbench, and the middle part of the steel plate is facing the pressure head. The pressure head is driven by the power part to move downward, and the pressure head pushes the middle part of the steel plate to move downward and bend. As the pressure head continues to move, the upper ends of the two dies approach each other, and the steel plate is pressed into a cylindrical structure by utilizing the rotation trajectory of the two dies. After the pipe is rolled, the outer wall of the steel pipe is directly roll-welded at the work station to form the steel pipe into the desired workpiece shape.

[0004] At present, the existing steel pipe production equipment directly rolls and welds the raw materials without positioning the welds. However, this weld is only welded on the outside, and no welding is performed on the inside. If the steel pipe raw material is thick, only external welding cannot achieve the purpose of complete welding. Moreover, if the diameter of the steel pipe is small, the internal welding is performed after the external welding of the steel pipe. The internal welding space is small and there is not much welding space. Therefore, the strength of the steel pipe welding is affected. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention aims to provide an automated steel pipe processing production line and a working method.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automated steel pipe processing production line, comprising a transfer assembly, a correction assembly and a forming assembly arranged on the side wall of the transfer assembly, wherein the correction assembly and the forming assembly are arranged side by side.

[0007] The transfer assembly comprises a ground rail and a ground rail trolley slidably connected to the top of the ground rail, a manipulator is installed on the top of the ground rail trolley, and a clamp is installed on the output end of the manipulator.

[0008] The forming assembly includes a feeding mechanism arranged on one side of the robot and an extrusion mechanism installed on the top of the feeding mechanism. Two sets of docking mechanisms are symmetrically installed on the top of the feeding mechanism. The two sets of extrusion mechanisms are arranged on both sides of the feeding mechanism. An outer wall welding mechanism is installed on the top of the feeding mechanism, and the outer wall welding mechanism extends to the top of the extrusion mechanism.

[0009] The feeding mechanism includes a support arranged on one side of the manipulator and two positioning blocks symmetrically installed on the top of the support, a gap is arranged between the two positioning blocks, a positioning plate is horizontally slidably connected to the top of the positioning block, the sliding direction of the positioning plate is the same as the extension direction of the gap, and a through groove is opened in the middle of the positioning plate.

[0010] The extrusion mechanism includes an L-shaped plate installed between the two positioning blocks, the L-shaped plate is located at the end position of the gap, and a positioning cylinder is horizontally connected to one side of the L-shaped plate close to the transfer component, and an opening is provided on the top of the outer wall of the positioning cylinder.

[0011] The outer wall welding mechanism includes an outer wall welding wheel arranged on the top of the positioning cylinder, the interior of the positioning cylinder is slidably connected with an inner wall welding mechanism, the inner wall welding mechanism includes an inner wall welding wheel, and the inner wall welding wheel and the outer wall welding wheel both slide along the extension direction of the outer wall opening of the positioning cylinder.

[0012] The present invention is further configured as follows: guide rails are installed on the tops of the two positioning blocks, a transfer seat is slidably connected to the tops of the guide rails, and the tops of the transfer seat are connected to the positioning plate.

[0013] By adopting the above technical scheme, the feeding mechanism receives and transfers the steel pipe raw material clamped by the clamp, the extrusion mechanism performs preliminary extrusion on the steel pipe raw material on the feeding mechanism, and then the two sets of docking mechanisms extrude the steel pipe raw material again. The extruded steel pipe raw material is rolled into a steel pipe, and the outer wall welding mechanism welds the gap between the raw material rolled pipe and the spliced ​​steel pipe.

[0014] The present invention is further configured as follows: a clamp is sleeved on the outer wall of the positioning cylinder, the outer wall of the clamp is connected to the top of the positioning plate, a driving cylinder is installed at the bottom of the support and directly below the positioning cylinder, the piston rod of the driving cylinder vertically penetrates the support upward and is connected to an arc plate, an arc-shaped groove is opened in the middle of the top surface of the arc plate, and the length of the arc plate is less than the length of the through groove at the top of the positioning plate.

[0015] By adopting the above technical scheme, when the positioning plate moves the steel pipe raw material to the bottom of the positioning cylinder, the driving cylinder pushes the arc plate upward, and the arc plate continues to move upward after passing through the through groove on the positioning plate, causing the steel pipe raw material to be pushed upward toward the positioning cylinder. The steel pipe raw material is blocked by the positioning cylinder during the upward movement, and the positioning cylinder and the arc plate are squeezed against each other, causing the steel pipe raw material to gradually squeeze into the arc-shaped groove at the top of the arc plate for processing. When the steel pipe welding is completed, the positioning plate drives the clamp to slide on the outer wall of the positioning cylinder, causing the welded steel pipe to be pushed out from the outer wall of the positioning cylinder, and the manipulator and the clamp cooperate to remove the welded steel pipe.

[0016] The present invention is further configured such that two groups of the docking mechanisms are arranged corresponding to the two positioning blocks, and each group of the docking mechanisms includes a base plate installed on the top of the corresponding positioning block and a top plate arranged on the top of the base plate, a spring rod is connected between the top plate and the corresponding positioning block, a docking cylinder is installed on the top of the top plate, a fixing plate is installed on the end of the piston rod of the docking cylinder, two telescopic rods are symmetrically penetrated and connected to the side wall of the docking cylinder, the telescopic ends of the two telescopic rods are connected to the docking blocks, the two docking blocks are arranged opposite to each other, and are respectively located on both sides of the positioning cylinder.

[0017] The present invention is further configured as follows: a concave platform is provided on the top of each of the two docking blocks, a first cutter is horizontally mounted on the concave platform on the top of one of the docking blocks, a second cutter is horizontally mounted on the groove on the top of the other docking block, the height of the second cutter is higher than the height of the first cutter, and a wedge-shaped portion is provided on a side of the second cutter close to the first cutter, a shearing cylinder is horizontally mounted on a side wall of a docking block corresponding to the second cutter, a piston rod of the shearing cylinder is connected to the second cutter, and inclined portions are provided on opposite sides of the two docking blocks.

[0018] By adopting the above technical solution and setting the inclined portion, when the docking block slides on the outer wall of the positioning tube, the docking blocks on the two sets of docking mechanisms are both adapted to fit the overlapping positions of the steel pipe raw materials, the overlapping positions of the steel pipe raw materials are between the two docking blocks, and the excess weld edges generated after the overlapping of the steel pipe raw materials are shoveled up by the inclined portion, the excess weld edges are bent, and extend to the top of the docking block corresponding to the first cutter, at which time the excess weld edges are separated from the steel pipe raw materials, which is convenient for subsequent processing of the excess weld edges, and the second cutter is pushed by the shear cylinder to slide on the top of the corresponding docking block, and while the two docking blocks approach each other to squeeze the steel pipe raw materials, the second cutter and the first cutter gradually overlap and cut off the excess weld edges, and the steel pipe raw materials wound on the positioning tube are welded inside and outside at the same time by the inner wall welding mechanism and the outer wall welding mechanism, so as to avoid the situation where the thickness of the steel pipe is inconsistent.

[0019] The present invention is further configured as follows: the outer wall welding mechanism also includes a truss installed on the top of two positioning blocks, wherein the side wall of one of the trusses is installed with an electric slide rail, and the top of the other truss is installed with a limit bar, a placement seat is slidably connected between the side wall of the electric slide rail and the top of the limit bar, an adjusting cylinder is vertically installed on the top of the placement seat, the piston rod of the adjusting cylinder passes through the top of the placement seat and is installed with a positioning seat, and the outer wall welding wheel is rotatably connected to the inside of the positioning seat.

[0020] By adopting the above technical solution, after the two docking blocks are docked, a guide gap is formed between the two, and the overlapping position of the steel pipe raw material is between the guide gaps, and then the adjusting cylinder is used to push the positioning seat and the outer wall welding wheel to move downward as a whole, and the outer wall welding wheel extends between the two docking blocks. Then, the placement seat, the adjusting cylinder, the positioning seat and the outer wall welding wheel are driven by the electric slide rail to move synchronously, thereby completing the uninterrupted welding of the outer wall of the steel pipe, thereby achieving the purpose of welding and forming the steel pipe raw material.

[0021] The present invention is further configured as follows: the inner wall welding mechanism also includes an I-shaped plate slidably connected to the inside of the positioning cylinder, the inner wall welding wheel is installed on the top of the I-shaped plate, the inner side wall of the positioning cylinder is symmetrically connected to two guide bars, the two guide bars are inserted on both sides of the I-shaped plate, a displacement motor is installed at the bottom of the I-shaped plate, the output end of the displacement motor is connected to a gear, and a rack is installed at the bottom of the inner side wall of the positioning cylinder, and the rack is meshingly connected to the gear.

[0022] By adopting the above technical solution, the displacement motor drives the gear to rotate. Since the gear and the rack are meshed, when the gear rotates, the gear moves on the rack, and the driving force of the gear is applied to the displacement motor and the I-shaped plate, causing the I-shaped plate to move inside the positioning tube. The I-shaped plate is guided and limited by the guide bar to avoid the I-shaped plate rotating inside the positioning tube. When the I-shaped plate moves, it can drive the inner wall welding wheel to move, thereby achieving the purpose of continuous welding of the inner wall of the steel pipe using the inner wall welding wheel.

[0023] The present invention is further configured as follows: the correction component includes a workbench arranged on one side of the transfer component and arranged side by side with the forming component, two brackets are symmetrically installed on the top of the workbench, and a positioning cylinder is installed on the top of the two brackets. The two positioning cylinders are arranged opposite to each other, and a V-shaped clamp is installed on the end of the piston rod of the positioning cylinder. A lifting cylinder is installed in the middle of the top surface of the workbench, and a lifting block is installed on the top of the lifting cylinder.

[0024] The present invention is further configured as follows: a driving motor and a bearing seat are installed on the top of the workbench, a rotating shaft is rotatably connected inside the bearing seat, a transmission mechanism is connected between the output end of the driving motor and the rotating shaft, a connecting plate is connected to one end of the rotating shaft, two sliders are slidably connected inside the connecting plate, and a connecting rod is connected to the same side of the two sliders.

[0025] By adopting the above technical solution, the connecting rod is inserted into the interior of the steel pipe, and then the corresponding V-shaped clamps are driven to move by two positioning cylinders. The two V-shaped clamps cooperate with each other to position the steel pipe, and then the transmission mechanism is driven by the driving motor to cause the rotating shaft and the connecting rod inside the bearing seat to rotate. After the two connecting rods are inserted into the interior of the steel pipe, they rotate and displace around, and the two connecting rods cooperate to round and shape the steel pipe to avoid the problem of unevenness at the joint of the steel pipes.

[0026] The working method of the automated steel pipe processing production line, using the automated steel pipe processing production line as described above, comprises the following steps:

[0027] S1. The ground rail drives the ground rail trolley, manipulator and fixture to move synchronously. The ground rail places the steel pipe raw material to be processed on the top of the positioning plate, and then moves on the top of the positioning block through the positioning plate, causing the steel pipe raw material to move to the bottom of the positioning cylinder.

[0028] S2. The steel pipe raw material is then extruded into a U shape by an extrusion mechanism, and then two sets of docking mechanisms punch the U-shaped steel pipe raw material in turn, so that the steel pipe raw material is extruded and fits to the outer wall of the positioning tube, and the steel pipe raw material is wound around the outer wall of the positioning tube to form a steel pipe.

[0029] S3. After the steel pipe raw material is extruded and formed, two sets of butt joint mechanisms are used to cooperate to cut the weld edges of the overlapping parts of the steel pipe raw material.

[0030] S4. After the excess weld edge on the steel pipe is cut off, the outer wall welding wheel rolls and welds between the two docking blocks to continuously weld the outer wall weld edge of the steel pipe. At the same time, the inner wall welding mechanism moves inside the top plate, and the inner wall welding wheel rolls and welds along the top opening of the positioning tube. The outer wall welding wheel and the inner wall welding wheel cooperate to complete the simultaneous welding of the inside and outside of the steel pipe.

[0031] S5. After the steel pipe welding is completed, the positioning plate is moved out from the bottom of the positioning cylinder. During this process, the positioning plate drives the clamp to slide on the outer wall of the positioning cylinder, causing the welded steel pipe to be pushed out from the outer wall of the positioning cylinder. Then, the fixture removes the steel pipe, and transfers and places the steel pipe on the correction assembly through the cooperation of the ground rail, ground rail trolley, manipulator and fixture for secondary correction. Then the manipulator removes the steel pipe and places a new steel pipe raw material on the forming assembly.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] (1) By setting up an inner wall welding mechanism, the displacement motor drives the gear to rotate, and the gear moves on the rack. The driving force of the gear is applied to the displacement motor and the I-shaped plate, so that the I-shaped plate moves inside the positioning tube. When the I-shaped plate moves, it can drive the inner wall welding wheel to move, so as to achieve the purpose of continuous welding of the inner wall of the steel pipe by the inner wall welding wheel. The inner wall welding wheel and the outer wall welding wheel are used to simultaneously weld the butt joint of the steel pipe raw material inside and outside, which solves the problem that the existing steel pipe production device only performs external welding while the internal welding is not performed to affect the welding strength. In addition, it is not affected by the diameter of the steel pipe, that is, the purpose of internal welding can be achieved inside a small diameter steel pipe.

[0034] (2) By setting the inclined portion, when the docking block slides on the outer wall of the positioning tube, the docking blocks on the two sets of docking mechanisms are both adapted to fit the overlapping positions of the steel pipe raw materials, and the overlapping position of the steel pipe raw materials is between the two docking blocks. In addition, the excess weld edge generated after the overlapping of the steel pipe raw materials is shoveled up by the inclined portion, the excess weld edge is bent, and extends to the top of the docking block corresponding to the first cutter. At this time, the excess weld edge is separated from the steel pipe raw materials, which is convenient for the subsequent processing of the excess weld edge.

[0035] (3) The shear cylinder pushes the second cutter to slide on the top of the corresponding docking block. When the two docking blocks approach each other to squeeze the steel pipe raw material, the second cutter and the first cutter gradually overlap and cut off the excess weld edge. The steel pipe raw material wound on the positioning tube is welded inside and outside at the same time by the inner wall welding mechanism and the outer wall welding mechanism to avoid inconsistent thickness of the steel pipe.

[0036] (4) By setting up a correction component, the connecting rod is inserted into the inside of the steel pipe, and then the corresponding V-shaped clamps are driven to move by two positioning cylinders. The two V-shaped clamps cooperate with each other to position the steel pipe. Then, the driving motor drives the transmission mechanism to cause the rotating shaft and the connecting rod inside the bearing seat to rotate. After the two connecting rods are inserted into the inside of the steel pipe, they rotate and move around. The two connecting rods cooperate to correct the roundness of the steel pipe to avoid the problem of unevenness at the joint of the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the automated steel pipe processing production line in the present invention.

[0038] Figure 2 It is a schematic diagram of the structure of the molding component in the present invention.

[0039] Figure 3 It is a schematic diagram of the structure of the outer wall welding mechanism in the present invention.

[0040] Figure 4It is a schematic diagram of the connection structure of the feeding mechanism, the extrusion mechanism and the docking mechanism in the present invention.

[0041] Figure 5 for Figure 4 Front view structural diagram of .

[0042] Figure 6 This is a schematic diagram of the structure of the first docking mechanism in the present invention.

[0043] Figure 7 This is a schematic diagram of the structure of the second docking mechanism in the present invention.

[0044] Figure 8 It is a schematic diagram of the docking state of two docking blocks in the present invention.

[0045] Fig. 9 It is a schematic diagram of the connection structure between the feeding mechanism and the extrusion mechanism in the present invention.

[0046] Fig.10 for Fig. 9 Front view structural diagram of .

[0047] Fig.11 for Fig.10 Schematic diagram of the local structure.

[0048] Fig.12 for Fig.11 Schematic diagram of the enlarged structure of area A in the middle.

[0049] Fig.13 It is a schematic diagram of the connection structure of the correction component in the present invention.

[0050] Description of reference numerals: 1. transfer assembly; 11. ground rail; 12. ground rail trolley; 13. manipulator; 14. fixture;

[0051] 2. Correction assembly; 21. Workbench; 22. Positioning cylinder; 23. Bracket; 24. V-clip; 25. Lifting cylinder; 26. Lifting block; 27. Driving motor; 28. Transmission mechanism; 29. ​​Bearing seat; 201. Connecting plate; 202. Connecting rod;

[0052] 3. Molding assembly; 31. Feeding mechanism; 311. Support; 312. Positioning block; 313. Guide rail; 314. Positioning plate; 315. Transfer seat;

[0053] 32. Extrusion mechanism; 321. L-shaped plate; 322. Positioning cylinder; 323. Clamp; 324. Arc plate; 325. Driving cylinder;

[0054] 33, docking mechanism; 331, bottom plate; 332, top plate; 333, spring rod; 334, docking cylinder; 335, fixed plate; 336, telescopic rod; 337, docking block; 338, first cutter; 339, second cutter; 3301, shearing cylinder; 3302, inclined portion;

[0055] 34. Outer wall welding mechanism; 341. Truss; 342. Electric slide rail; 343. Placement seat; 344. Limiting strip; 345. Adjustment cylinder; 346. Positioning seat; 347. Outer wall welding wheel;

[0056] 35. Inner wall welding mechanism; 351. Guide bar; 352. I-shaped plate; 353. Displacement motor; 354. Rack; 355. Gear; 356. Inner wall welding wheel. DETAILED DESCRIPTION

[0057] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0058] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0059] See also Figure 1-13 , the present invention provides the following technical solutions:

[0060] Example 1, see Figure 1 The automated steel pipe processing production line includes a transfer assembly 1, which is used to transport the steel pipe raw material and change the position of the steel pipe raw material during processing. The specific structure of the transfer assembly 1 is as follows:

[0061] See also Figure 1 The transfer assembly 1 includes a ground rail 11 and a ground rail trolley 12 slidably connected to the top of the ground rail 11. A manipulator 13 is installed on the top of the ground rail trolley 12. A clamp 14 is installed on the output end of the manipulator 13. The ground rail trolley 12 slides on the ground rail 11, causing the manipulator 13 and the clamp 14 to move synchronously. The clamp 14 is used to clamp the steel pipe raw material, and then the steel pipe raw material is transported through the cooperation of various components of the transfer assembly 1, and the steel pipe raw material in the processing process is replaced.

[0062] See also Figure 1 and Figure 2 A forming assembly 3 is provided on one side of the transfer assembly 1. The forming assembly 3 is used to receive the steel pipe raw material transported by the transfer assembly 1 and perform forming operations on the steel pipe raw material. The specific structure of the forming assembly 3 is as follows:

[0063] See also Figure 1 and Figure 2 The forming assembly 3 includes a feeding mechanism 31 arranged on one side of the manipulator 13 and an extrusion mechanism 32 installed on the top of the feeding mechanism 31. Two sets of docking mechanisms 33 are symmetrically installed on the top of the feeding mechanism 31. The two sets of extrusion mechanisms 32 are arranged on both sides of the feeding mechanism 31. An outer wall welding mechanism 34 is installed on the top of the feeding mechanism 31. The outer wall welding mechanism 34 extends to the top of the extrusion mechanism 32. The feeding mechanism 31 is used to receive and transfer the steel pipe raw material clamped by the clamp 14. The extrusion mechanism 32 is used to perform preliminary extrusion on the steel pipe raw material on the feeding mechanism 31. After that, the two sets of docking mechanisms 33 extrude the steel pipe raw material again. The extruded steel pipe raw material is rolled into a steel pipe. The outer wall welding mechanism 34 welds the gap between the raw material roll pipe splicing. The specific structure of the feeding mechanism 31 is as follows:

[0064] See also Figure 4 , Figure 5 , Fig. 9 and Fig.10 The feeding mechanism 31 includes a support 311 arranged on one side of the manipulator 13 and two positioning blocks 312 symmetrically installed on the top of the support 311. A gap is set between the two positioning blocks 312. A guide rail 313 is installed on the top of the two positioning blocks 312. The top of the guide rail 313 is slidably connected to a transfer seat 315. The transfer seat 315 consists of an electric wheel and a bearing platform. The electric wheel is installed on the bearing platform, and the electric wheel walks on the guide rail 313, so that the bearing platform can move synchronously. The top of the positioning block 312 is horizontally slidably connected to There is a positioning plate 314, the top of the bearing platform of the transfer seat 315 is connected to the positioning plate 314, the sliding direction of the positioning plate 314 is the same as the extension direction of the gap, and a through groove is opened in the middle of the positioning plate 314. When the bearing platform of the transfer seat 315 moves, it drives the positioning plate 314 to move synchronously. When the positioning plate 314 receives the steel pipe raw material, it moves toward the direction close to the robot 13, thereby facilitating the placement of the steel pipe raw material. After the steel pipe raw material is placed, the positioning plate 314 drives the steel pipe raw material to move to the bottom of the extrusion mechanism 32 to prepare for the extrusion molding operation.

[0065] The specific structure of the extrusion mechanism 32 is as follows:

[0066] See also Figure 9-11 The extrusion mechanism 32 includes an L-shaped plate 321 installed between two positioning blocks 312. The L-shaped plate 321 is at the end position of the gap. The side of the L-shaped plate 321 close to the transfer component 1 is horizontally connected with a positioning cylinder 322. The top of the outer wall of the positioning cylinder 322 is provided with an opening. The positioning plate 314 moves the steel pipe raw material to the bottom of the positioning cylinder 322.

[0067] See also Figure 9-11In this embodiment, the outer wall of the positioning cylinder 322 is sleeved with a clamp 323, and the outer wall of the clamp 323 is connected to the top of the positioning plate 314. A driving cylinder 325 is installed at the bottom of the support 311 and directly below the positioning cylinder 322. The piston rod of the driving cylinder 325 vertically penetrates the support 311 upward and is connected to the arc plate 324. A circular arc groove is opened in the middle of the top surface of the arc plate 324, and the length of the arc plate 324 is less than the length of the through groove at the top of the positioning plate 314. When the positioning plate 314 moves the steel pipe raw material to the positioning cylinder 322 When the arc plate 324 is directly below the arc plate 324, the driving cylinder 325 pushes the arc plate 324 to move upward, and the arc plate 324 passes through the through groove on the positioning plate 314 and continues to move upward, causing the steel pipe raw material to be pushed upward and close to the positioning cylinder 322. The steel pipe raw material is blocked by the positioning cylinder 322 during the upward movement, and the positioning cylinder 322 and the arc plate 324 are squeezed against each other, causing the steel pipe raw material to gradually squeeze into the arc-shaped groove at the top of the arc plate 324, and finally the positioning cylinder 322 is embedded in the arc-shaped groove at the top of the arc plate 324, and the steel pipe raw material is squeezed into a U shape.

[0068] The specific structure of the docking mechanism 33 is as follows:

[0069] See also Figure 6-Figure 8 In this embodiment, two groups of docking mechanisms 33 are arranged corresponding to the two positioning blocks 312. Each group of docking mechanisms 33 includes a bottom plate 331 installed on the top of the corresponding positioning block 312 and a top plate 332 arranged on the top of the bottom plate 331. A spring rod 333 is connected between the top plate 332 and the corresponding positioning block 312. A docking cylinder 334 is installed on the top of the top plate 332. A fixing plate 335 is installed on the end of the piston rod of the docking cylinder 334. Two telescopic rods 336 are symmetrically penetrated and connected to the side wall of the docking cylinder 334. The telescopic ends of the two telescopic rods 336 are connected to docking blocks 337. The two docking blocks 337 are arranged opposite to each other and are respectively located at the positioning cylinder 322. On both sides, the docking cylinder 334 is used to drive the corresponding fixed plate 335, telescopic rod 336 and docking block 337 to move synchronously. During the movement, the end of the docking block 337 first contacts the side wall of the positioning cylinder 322, and the docking block 337 slides along the outer wall of the positioning cylinder 322 and gradually moves upward. When the docking block 337 is squeezed and moves upward, it drives the corresponding telescopic rod 336, fixed plate 335, docking cylinder 334 and top plate 332 to move upward. At this time, the corresponding spring rod 333 is elongated, and the two docking blocks 337 slide on the outer wall of the positioning cylinder 322 and dock with each other, causing the steel pipe raw material to be pressed against the outer wall of the positioning cylinder 322, causing the steel pipe to be pressed into a tubular shape.

[0070] The specific structure of the outer wall welding mechanism 34 is as follows:

[0071] See also Figure 3The outer wall welding mechanism 34 also includes a truss 341 installed on the top of the two positioning blocks 312, wherein the side wall of one of the trusses 341 is installed with an electric slide rail 342, and the top of the other truss 341 is installed with a limit bar 344, and a placement seat 343 is slidably connected between the side wall of the electric slide rail 342 and the top of the limit bar 344, and an adjusting cylinder 345 is vertically installed on the top of the placement seat 343, and the piston rod of the adjusting cylinder 345 passes through the top of the placement seat 343 and is installed with a positioning seat 346, and the bottom of the positioning seat 346 is rotatably connected with an outer wall welding wheel 347, and the two After the docking blocks 337 are docked, a guide gap is formed between the two, and the overlapping position of the steel pipe raw material is between the guide gaps. Then, the adjusting cylinder 345 is used to push the positioning seat 346 and the outer wall welding wheel 347 to move downward as a whole. The outer wall welding wheel 347 extends between the two docking blocks 337. Then, the placement seat 343, the adjusting cylinder 345, the positioning seat 346 and the outer wall welding wheel 347 are driven by the electric slide rail 342 to move synchronously, thereby completing the uninterrupted welding of the outer wall of the steel pipe, thereby achieving the purpose of welding and forming the steel pipe raw material, and then the transfer component 1 can discharge the steel pipe.

[0072] Embodiment 2: The existing steel pipe production device directly rolls and welds the raw material without positioning the weld. However, this weld is only externally welded, and the internal welding is not performed. If the steel pipe raw material is thick, only external welding cannot achieve the purpose of complete welding. Moreover, if the diameter of the steel pipe is small, the internal welding is performed after the external welding of the steel pipe. The internal welding space is small and there is not much welding space. Therefore, the strength of the steel pipe welding is affected.

[0073] See also Fig.12 To this end, an inner wall welding mechanism 35 is slidably connected inside the positioning cylinder 322, and the inner wall welding mechanism 35 includes an inner wall welding wheel 356. The inner wall welding wheel 356 and the outer wall welding wheel 347 both slide along the extension direction of the outer wall opening of the positioning cylinder 322. The inner wall welding wheel 356 and the outer wall welding wheel 347 are both connected to an external welding machine, and the metal is welded by the heat generated by the resistance. The inner wall welding wheel 356 and the outer wall welding wheel 347 are used to cooperate with each other to simultaneously weld the inside and outside of the butt joint of the steel pipe raw material, which solves the problem that the existing steel pipe production device only performs external welding while no welding is performed inside to affect the welding strength, and there is no need to be affected by the diameter of the steel pipe, that is, the purpose of internal welding can be achieved inside a small diameter steel pipe.

[0074] See also Fig.12The inner wall welding mechanism 35 also includes an I-shaped plate 352 slidably connected to the inside of the positioning cylinder 322, and an inner wall welding wheel 356 is installed on the top of the I-shaped plate 352. The inner side wall of the positioning cylinder 322 is symmetrically connected to two guide bars 351, and the two guide bars 351 are inserted on both sides of the I-shaped plate 352. A displacement motor 353 is installed at the bottom of the I-shaped plate 352, and a gear 355 is connected to the output end of the displacement motor 353. A rack 354 is installed at the bottom of the inner side wall of the positioning cylinder 322, and the rack 354 is meshed with the gear 355. The sliding mode of the inner wall welding wheel 356 inside the positioning cylinder 322 is as follows:

[0075] The displacement motor 353 is used to drive the gear 355 to rotate. Since the gear 355 and the rack 354 are meshed, when the gear 355 rotates, the gear 355 moves on the rack 354, and the moving driving force of the gear 355 is applied to the displacement motor 353 and the I-shaped plate 352, causing the I-shaped plate 352 to move inside the positioning cylinder 322. The I-shaped plate 352 is guided and limited by the guide bar 351 to avoid the I-shaped plate 352 rotating inside the positioning cylinder 322. When the I-shaped plate 352 moves, it can drive the inner wall welding wheel 356 to move, thereby achieving the purpose of continuous welding of the inner wall of the steel pipe using the inner wall welding wheel 356.

[0076] In the third embodiment, during the process of winding and butting the steel pipe, the two ends of the steel pipe raw material will overlap at the butt joint position, causing the overlapping part of the steel pipe to form a double-layer structure, while the surrounding part is a single-layer structure. The thickness of the steel pipe is inconsistent, which affects the production quality of the steel pipe and requires subsequent processing operations.

[0077] See also Figure 4-Figure 6To this end, a concave platform is provided on the top of the two docking blocks 337, a first cutter 338 is horizontally mounted on the concave platform on the top of one of the docking blocks 337, and a second cutter 339 is horizontally mounted on the groove on the top of the other docking block 337, the height of the second cutter 339 is higher than the height of the first cutter 338, and a wedge-shaped portion is provided on the side of the second cutter 339 close to the first cutter 338, a shearing cylinder 3301 is horizontally mounted on the side wall of a docking block 337 corresponding to the second cutter 339, the piston rod of the shearing cylinder 3301 is connected to the second cutter 339, and an inclined portion 3302 is provided on the opposite sides of the two docking blocks 337, and when the docking blocks 337 slide on the outer wall of the positioning cylinder 322, the two sets of docking mechanisms 33 The docking blocks 337 on the upper surface are all adapted to fit the overlapping positions of the steel pipe raw materials. The overlapping positions of the steel pipe raw materials are between the two docking blocks 337, and the excess weld edges generated after the overlapping of the steel pipe raw materials are shoveled up by the inclined portion 3302. The excess weld edges are bent and extended to the top of the docking block 337 corresponding to the first cutter 338. At this time, the excess weld edges are separated from the steel pipe raw materials. Subsequently, the second cutter 339 is pushed by the shear cylinder 3301 to slide on the top of the corresponding docking block 337. The second cutter 339 and the first cutter 338 gradually overlap and cut off the excess weld edges. The steel pipe raw materials wound on the positioning tube 322 are welded inside and outside at the same time by the inner wall welding mechanism 35 and the outer wall welding mechanism 34 to avoid inconsistent thickness of the steel pipe.

[0078] In the fourth embodiment, when the steel pipe is welded, the outer wall of the steel pipe is maintained in a standard arc state by the cooperation of the two docking blocks 337 and the arc plate 324, while the docking point at the end of the steel pipe is between the two docking blocks 337 and is not squeezed and deformed. Therefore, there is a problem of unevenness at the docking point of the steel pipe.

[0079] See also Figure 1 and Fig.13 To this end, a correction component 2 is provided on the side wall of the transfer component 1. The correction component 2 and the forming component 3 are arranged side by side. The correction component 2 is used to shape the welded steel pipe so that the steel pipe can meet the qualified standards. The specific structure of the correction component 2 is as follows:

[0080] See also Figure 1 and Fig.13The correction component 2 includes a workbench 21 which is arranged on one side of the transfer component 1 and arranged side by side with the forming component 3. Two brackets 23 are symmetrically installed on the top of the workbench 21. Positioning cylinders 22 are installed on the tops of the two brackets 23. The two positioning cylinders 22 are arranged opposite to each other. A V-shaped clamp 24 is installed on the end of the piston rod of the positioning cylinder 22. A lifting cylinder 25 is installed in the middle of the top surface of the workbench 21. A lifting block 26 is installed on the top of the lifting cylinder 25. When the steel pipe welding is completed, the positioning plate 314 drives the clamp 323 to slide on the outer wall of the positioning cylinder 322, so that the welded steel pipe is pushed out from the outer wall of the positioning cylinder 322. The manipulator 13 and the clamp 14 cooperate to remove the welded steel pipe. The removed steel pipe is moved to the lifting block 26 of the correction component 2 through the transfer component 1 and placed. The lifting cylinder 25 is used to adjust the height of the lifting block 26 and the steel pipe.

[0081] See also Figure 1 and Fig.13 In this embodiment, a driving motor 27 and a bearing seat 29 are installed on the top of the workbench 21. The bearing seat 29 is rotatably connected to a rotating shaft. A transmission mechanism 28 is connected between the output end of the driving motor 27 and the rotating shaft. A connecting plate 201 is connected to one end of the rotating shaft. Two sliders are slidably connected to the inside of the connecting plate 201. The same side of the two sliders is connected to a connecting rod 202. The steel pipe is moved to a height corresponding to the connecting rod 202 by the action of the lifting block 26, and the manipulator 13 and the clamp 14 cooperate to move the steel pipe to the direction of the connecting rod 202. The two connecting rods 202 move to the inside of the steel pipe, and then the corresponding V-shaped clamps 24 are driven to move by the two positioning cylinders 22. The two V-shaped clamps 24 cooperate with each other to position the steel pipe. Then the transmission mechanism 28 is driven by the drive motor 27 to cause the rotating shaft and the connecting rod 202 inside the bearing seat 29 to rotate. After the two connecting rods 202 are inserted into the inside of the steel pipe, they rotate and move around. The two connecting rods 202 cooperate to round and shape the steel pipe. Then the robot 13 removes the steel pipe and places a new steel pipe raw material on the forming assembly 3.

[0082] Embodiment 5, the working method of the automated steel pipe processing production line, using the automated steel pipe processing production line as described above, comprises the following steps:

[0083] S1. The ground rail 11 runs, and the ground rail 11 drives the ground rail trolley 12, the manipulator 13 and the clamp 14 to move synchronously. The ground rail 11 places the steel pipe raw material to be processed on the top of the positioning plate 314, and then moves on the top of the positioning block 312 through the positioning plate 314, so that the steel pipe raw material moves to the bottom of the positioning cylinder 322.

[0084] More specific steps are:

[0085] S11, when the ground rail 11 is running, the ground rail trolley 12, the manipulator 13 and the clamp 14 move synchronously, the clamp 14 clamps the raw material and places it on the top of the positioning plate 314, and then the transfer seat 315 runs and drives the positioning plate 314 to move along the extension direction of the guide rail 313, so that the positioning plate 314 and the steel pipe raw material are moved to the bottom of the positioning cylinder 322 for standby.

[0086] S2. The steel pipe raw material is then extruded into a U shape by the extrusion mechanism 32, and then the two sets of docking mechanisms 33 punch the U-shaped steel pipe raw material in turn, so that the steel pipe raw material is extruded and fits to the outer wall of the positioning tube 322, and the steel pipe raw material is wound around the outer wall of the positioning tube 322 to form a steel pipe.

[0087] More specific steps are:

[0088] S21. When the steel pipe raw material moves to the bottom of the positioning cylinder 322, the driving cylinder 325 pushes the arc plate 324 upward and lifts the steel pipe raw material. The steel pipe raw material utilizes the blocking limit of the positioning cylinder 322. As the arc plate 324 continuously squeezes the steel pipe raw material, the positioning cylinder 322 is embedded in the interior of the arc plate 324. In this state, the steel pipe raw material is squeezed into a U shape.

[0089] S22. After the steel pipe raw material is squeezed into a U shape, the docking mechanism 33 corresponding to the second cutter 339 starts to operate, that is, the piston rod of the corresponding docking cylinder 334 is extended, and the docking block 337 is synchronously driven to move in the direction of the positioning cylinder 322. At the same time, the docking block 337 squeezes the steel pipe raw material, and the steel pipe raw material is pressed against the outer wall of the positioning cylinder 322.

[0090] S23. At the same time, the docking block 337 slides along the outer wall of the positioning tube 322, and the corresponding spring rod 333 gradually moves upward under the influence of the squeezing force of the top plate 332 on the docking block 337, and finally presses the steel pipe raw material into an arc shape.

[0091] S24. After one set of docking blocks 337 extrude the steel pipe raw material into shape, the other set of docking blocks 337 extrude the steel pipe raw material again through the step S22, so that the steel pipe raw material is wound around the outer wall of the positioning tube 322 to form a steel pipe.

[0092] S3. After the steel pipe raw material is extruded and formed, two sets of butt joint mechanisms 33 are used to cooperate to cut the weld edges of the overlapping parts of the steel pipe raw material.

[0093] More specific steps are:

[0094] S31. After the steel pipe raw material is formed into a steel pipe on the positioning cylinder 322, the docking blocks 337 on the two sets of docking mechanisms 33 are adapted to fit the overlapping positions of the steel pipe raw materials. The overlapping position of the steel pipe raw materials is between the two docking blocks 337, and the excess weld edge generated after the overlapping of the steel pipe raw materials is shoveled up by the inclined portion 3302. The excess weld edge extends to the top of the docking block 337 corresponding to the first cutter 338. Subsequently, the second cutter 339 is pushed by the shear cylinder 3301 to slide on the top of the corresponding docking block 337. The second cutter 339 and the first cutter 338 gradually overlap and cut off the excess weld edge.

[0095] S4. After the excess weld edge on the steel pipe is cut off, the outer wall welding wheel 347 rolls and welds between the two docking blocks 337 to continuously weld the outer wall weld edge of the steel pipe. At the same time, the inner wall welding mechanism 35 moves inside the top plate 332, and the inner wall welding wheel 356 rolls and welds along the top opening of the positioning cylinder 322. The outer wall welding wheel 347 and the inner wall welding wheel 356 cooperate to complete the simultaneous welding of the inside and outside of the steel pipe.

[0096] More specific steps are:

[0097] S41. When the welding edge of the steel pipe requires outer wall welding, the adjusting cylinder 345 is used to push the positioning seat 346 and the outer wall welding wheel 347 downward as a whole, and the outer wall welding wheel 347 extends between the two docking blocks 337. Then, the placement seat 343, the adjusting cylinder 345, the positioning seat 346 and the outer wall welding wheel 347 are driven by the electric slide rail 342 to move synchronously, thereby completing the uninterrupted welding of the outer wall of the steel pipe.

[0098] S42. At the same time, the displacement motor 353 drives the gear 355 to rotate, causing the gear 355 to roll and slide on the rack 354. The I-shaped plate 352 moves inside the positioning tube 322 under the rolling driving force of the gear 355. The I-shaped plate 352 drives the inner wall welding wheel 356 to move synchronously, thereby completing the uninterrupted welding of the inner wall of the steel pipe. The outer wall welding wheel 347 and the inner wall welding wheel 356 cooperate to complete the simultaneous welding of the inside and outside of the steel pipe.

[0099] S5. After the steel pipe welding is completed, the positioning plate 314 is moved out from the bottom of the positioning cylinder 322. During this process, the positioning plate 314 drives the clamp 323 to slide on the outer wall of the positioning cylinder 322, causing the welded steel pipe to be pushed out from the outer wall of the positioning cylinder 322. Subsequently, the clamp 14 removes the steel pipe, and the steel pipe is transferred and placed on the correction component 2 for secondary correction through the cooperation of the ground rail 11, the ground rail trolley 12, the manipulator 13 and the clamp 14. Subsequently, the manipulator 13 removes the steel pipe and places a new steel pipe raw material on the forming component 3.

[0100] More specific steps are:

[0101] S51, the ground rail 11, the ground rail trolley 12, the manipulator 13 and the clamp 14 cooperate to transfer the steel pipe and place it horizontally on the top of the lifting block 26, and push the lifting block 26 up and down through the lifting cylinder 25 to adjust the height of the steel pipe, and then drive the corresponding V-shaped clamps 24 to move through the two positioning cylinders 22, and the two V-shaped clamps 24 cooperate with each other to position the steel pipe, and then drive the transmission mechanism 28 through the drive motor 27 to drive, so that the rotating shaft and the connecting rod 202 inside the bearing seat 29 rotate, and the two connecting rods 202 are inserted into the steel pipe and rotated around, and the two connecting rods 202 cooperate to round and shape the steel pipe, and then the manipulator 13 removes the steel pipe and places a new steel pipe raw material on the forming component 3.

[0102] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. Automated steel pipe processing production line, characterized by: It comprises a transfer assembly (1), a correction assembly (2) and a forming assembly (3) arranged on the side wall of the transfer assembly (1), wherein the correction assembly (2) and the forming assembly (3) are arranged side by side; The transfer assembly (1) comprises a ground rail (11) and a ground rail trolley (12) slidably connected to the top of the ground rail (11); a manipulator (13) is installed on the top of the ground rail trolley (12); and a clamp (14) is installed at the output end of the manipulator (13); The correction component (2) comprises a workbench (21) arranged on one side of the transfer component (1) and arranged side by side with the forming component (3); two brackets (23) are symmetrically installed on the top of the workbench (21); a positioning cylinder (22) is installed on the top of each of the two brackets (23); the two positioning cylinders (22) are arranged opposite to each other; a V-shaped clamp (24) is installed on the end of the piston rod of the positioning cylinder (22); a lifting cylinder (25) is installed in the middle of the top surface of the workbench (21); and a lifting block (26) is installed on the top of the lifting cylinder (25); A driving motor (27) and a bearing seat (29) are installed on the top of the workbench (21); a rotating shaft is rotatably connected inside the bearing seat (29); a transmission mechanism (28) is connected between the output end of the driving motor (27) and the rotating shaft; a connecting plate (201) is connected to one end of the rotating shaft; two sliding blocks are slidably connected inside the connecting plate (201); and a connecting rod (202) is connected to the same side of the two sliding blocks; The forming assembly (3) comprises a feeding mechanism (31) arranged on one side of the manipulator (13) and an extrusion mechanism (32) installed on the top of the feeding mechanism (31); two groups of docking mechanisms (33) are symmetrically installed on the top of the feeding mechanism (31); the two groups of extrusion mechanisms (32) are arranged on both sides of the feeding mechanism (31); an outer wall welding mechanism (34) is installed on the top of the feeding mechanism (31); and the outer wall welding mechanism (34) extends to the top of the extrusion mechanism (32); The feeding mechanism (31) comprises a support (311) arranged on one side of the robot (13) and two positioning blocks (312) symmetrically mounted on the top of the support (311), a gap being arranged between the two positioning blocks (312), a positioning plate (314) being horizontally slidably connected to the top of the positioning block (312), the sliding direction of the positioning plate (314) being the same as the extending direction of the gap, and a through groove being arranged in the middle of the positioning plate (314); The squeezing mechanism (32) comprises an L-shaped plate (321) installed between the two positioning blocks (312), the L-shaped plate (321) being located at the end of the gap, a positioning cylinder (322) being horizontally connected to one side of the L-shaped plate (321) close to the transfer assembly (1), and an opening being provided at the top of the outer side wall of the positioning cylinder (322); The outer wall welding mechanism (34) comprises an outer wall welding wheel (347) arranged on the top of the positioning cylinder (322); the interior of the positioning cylinder (322) is slidably connected to an inner wall welding mechanism (35); the inner wall welding mechanism (35) comprises an inner wall welding wheel (356); the inner wall welding wheel (356) and the outer wall welding wheel (347) both slide along the extension direction of the outer wall opening of the positioning cylinder (322); A guide rail (313) is installed on the top of each of the two positioning blocks (312); a transfer seat (315) is slidably connected to the top of the guide rail (313); and the top of the transfer seat (315) is connected to the positioning plate (314); The outer wall of the positioning cylinder (322) is sleeved with a clamp (323), and the outer wall of the clamp (323) is connected to the top of the positioning plate (314). A driving cylinder (325) is installed at the bottom of the support (311) and directly below the positioning cylinder (322). The piston rod of the driving cylinder (325) vertically penetrates the support (311) upward and is connected to the arc plate (324). A circular arc groove is opened in the middle of the top surface of the arc plate (324), and the length of the arc plate (324) is less than the length of the through groove at the top of the positioning plate (314); Two groups of the docking mechanisms (33) are arranged corresponding to the two positioning blocks (312), and each group of the docking mechanisms (33) comprises a bottom plate (331) mounted on the top of the corresponding positioning block (312) and a top plate (332) arranged on the top of the bottom plate (331); a spring rod (333) is connected between the top plate (332) and the corresponding positioning block (312); a docking cylinder (334) is mounted on the top of the top plate (332); a fixing plate (335) is mounted on the end of the piston rod of the docking cylinder (334); two telescopic rods (336) are symmetrically arranged and connected to the side wall of the docking cylinder (334); the telescopic ends of the two telescopic rods (336) are connected to docking blocks (337); the two docking blocks (337) are arranged opposite to each other and are respectively located on two sides of the positioning cylinder (322); A concave platform is provided on the top of each of the two docking blocks (337); a first cutter (338) is horizontally mounted on the concave platform on the top of one of the docking blocks (337); a second cutter (339) is horizontally mounted on the groove on the top of the other docking block (337); the height of the second cutter (339) is higher than the height of the first cutter (338); a wedge-shaped portion is provided on a side of the second cutter (339) close to the first cutter (338); a shearing cylinder (3301) is horizontally mounted on the side wall of a docking block (337) corresponding to the second cutter (339); a piston rod of the shearing cylinder (3301) is connected to the second cutter (339); and an inclined portion (3302) is provided on opposite sides of the two docking blocks (337); The inner wall welding mechanism (35) further comprises an I-shaped plate (352) slidably connected to the interior of the positioning cylinder (322); the inner wall welding wheel (356) is mounted on the top of the I-shaped plate (352); the inner side wall of the positioning cylinder (322) is symmetrically connected to two guide bars (351); the two guide bars (351) are inserted on both sides of the I-shaped plate (352); a displacement motor (353) is mounted on the bottom of the I-shaped plate (352); the output end of the displacement motor (353) is connected to a gear (355); a rack (354) is mounted on the bottom of the inner side wall of the positioning cylinder (322); the rack (354) is meshingly connected to the gear (355); The docking block (337) slides along the outer wall of the positioning cylinder (322), and the corresponding spring rod (333) is gradually moved upward under the influence of the extrusion force of the top plate (332) on the docking block (337), thereby pressing the steel pipe raw material into an arc shape. After one group of docking blocks (337) has extruded the steel pipe raw material into a shape, the other group of docking blocks (337) extrudes the steel pipe raw material again, causing the steel pipe raw material to be wound around the outer wall of the positioning cylinder (322) to form a steel pipe; When the docking block (337) slides on the outer wall of the positioning tube (322), the docking blocks (337) on the two sets of docking mechanisms (33) are both adapted to fit at the overlapping positions of the steel pipe raw materials, the overlapping position of the steel pipe raw materials is between the two docking blocks (337), and the excess weld edge generated after the overlapping of the steel pipe raw materials is scooped up by the inclined portion (3302), the excess weld edge is bent and extends to the top of the docking block (337) corresponding to the first cutter (338), and the excess weld edge is separated from the steel pipe raw materials. The second cutter (339) is pushed by the shear cylinder (3301) to slide on the top of the corresponding docking block (337), the second cutter (339) and the first cutter (338) gradually overlap and cut off the excess weld edge, and the steel pipe raw materials wound on the positioning tube (322) are welded inside and outside at the same time by the inner wall welding mechanism (35) and the outer wall welding mechanism (34), so as to avoid inconsistent thickness of the steel pipe.

2. The automated steel pipe processing production line according to claim 1 is characterized in that: The outer wall welding mechanism (34) further comprises a truss (341) mounted on the top of two positioning blocks (312), wherein the side wall of one of the trusses (341) is mounted with an electric slide rail (342), and the top of the other truss (341) is mounted with a limit bar (344), a placement seat (343) is slidably connected between the side wall of the electric slide rail (342) and the top of the limit bar (344), an adjusting cylinder (345) is vertically mounted on the top of the placement seat (343), a piston rod of the adjusting cylinder (345) passes through the top of the placement seat (343) and is mounted with a positioning seat (346), and the outer wall welding wheel (347) is rotatably connected to the inside of the positioning seat (346).

3. A working method of an automated steel pipe processing production line, according to any one of claims 1-2, characterized in that: The following steps are involved: S1, the ground rail (11) is operated, the ground rail (11) drives the ground rail trolley (12), the manipulator (13) and the clamp (14) to move synchronously, the ground rail (11) places the steel pipe raw material to be processed on the top of the positioning plate (314), and then the positioning plate (314) moves on the top of the positioning block (312), so that the steel pipe raw material moves to the bottom of the positioning cylinder (322); S2, the steel pipe raw material is then squeezed into a U shape by the squeezing mechanism (32), and then the two sets of docking mechanisms (33) sequentially punch the U-shaped steel pipe raw material, so that the steel pipe raw material is squeezed and fits onto the outer wall of the positioning cylinder (322), and the steel pipe raw material is wound around the outer wall of the positioning cylinder (322) to form a steel pipe; S3, after the steel pipe raw material is extruded and formed, two sets of butt joint mechanisms (33) are used to cooperate to cut the weld edges of the overlapping parts of the steel pipe raw material; S4. After the excess weld edge on the steel pipe is cut off, the outer wall welding wheel (347) rolls and welds between the two butt blocks (337), and the outer wall welding edge of the steel pipe is welded continuously. At the same time, the inner wall welding mechanism (35) moves inside the top plate (332), and the inner wall welding wheel (356) rolls and welds along the top opening of the positioning cylinder (322). The outer wall welding wheel (347) and the inner wall welding wheel (356) cooperate to complete the simultaneous welding of the inside and outside of the steel pipe; S5. After the steel pipe welding is completed, the positioning plate (314) is moved out from the bottom of the positioning cylinder (322). During this process, the positioning plate (314) drives the clamp (323) to slide on the outer wall of the positioning cylinder (322), so that the welded steel pipe is pushed out from the outer wall of the positioning cylinder (322). Subsequently, the clamp (14) removes the steel pipe, and the steel pipe is transferred and placed on the correction component (2) through the cooperation of the ground rail (11), the ground rail trolley (12), the manipulator (13) and the clamp (14) for secondary correction. Subsequently, the manipulator (13) removes the steel pipe and places a new steel pipe raw material on the forming component (3).

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