Pipe fitting inner wall surfacing equipment and method thereof

Abstract

The invention belongs to the technical field of pipe fitting inner wall surfacing, particularly relates to pipe fitting inner wall surfacing equipment and a method thereof, and provides the following scheme aiming at the problems that the existing pipe fitting inner wall surfacing size cannot be adjusted, pipe fittings with different sizes are inconvenient to support and use, and a welding wire is inconvenient to convey. Four supporting legs are arranged at the bottom of the working plate; the automatic welding machine is installed at the top of the working plate, and an automatic welding arm is arranged on the automatic welding machine and used for conducting surfacing on the inner wall of the pipe-shaped part; and the bonding wire conveying mechanism is installed on the top of the working plate, and a bonding wire is arranged on the bonding wire conveying mechanism and installed on the automatic welding arm. By adjusting the distance between the two supporting rollers, supporting of tubular parts of different sizes can be adapted, the tubular parts can be driven to rotate through rotation of the two supporting rollers for surfacing, and conveying of welding wires of different sizes is facilitated by adjusting the distance between the driving roller and the driven roller.

Description

Technical Field

[0001] The invention relates to the technical field of inner wall cladding of a tubular part, and in particular to an inner wall cladding device and a method thereof. Background Art

[0002] In the power, metallurgy, mining, building materials and other industries, when using pipelines to transport ash, coal powder, mineral concentrate, concrete slurry and other materials, the inner wall of the pipeline is not only subject to severe wear, but sometimes also to greater pressure. Under such working conditions, ordinary steel pipes are very easy to wear and break, so surfacing is required. Surfacing, as an economical and fast process method for material surface modification, is increasingly widely used in the manufacture and repair of parts in various industrial sectors. In order to most effectively play the role of the surfacing layer, it is hoped that the surfacing method used has less parent material dilution, higher deposition speed and excellent surfacing layer performance, that is, high-quality, high-efficiency, low-dilution surfacing technology.

[0003] Publication (announcement) number: CN106392260B provides a tubular inner wall cladding device including a tubular clamping unit, which is used to fix the tubular and enable the tubular to rotate around the axis of the tubular; a tubular cladding unit, which is used to achieve reliable cladding on the inner wall of the tubular; a weld quality detection unit, which is used to detect the weld quality of the inner wall of the tubular after cladding; the tubular cladding unit and the weld quality detection unit are both arranged on a support frame, and the support frame is rotatably installed on a walking unit; the walking unit is used to approach or move away from the tubular; and a control unit is used to control the running speed of the walking unit and the running speed of the tubular clamping unit so that the tubular cladding unit installed on the walking unit can reliably clad the inner wall of the tubular.

[0004] The size of the existing surfacing welding on the inner wall of the tubular part cannot be adjusted, which is inconvenient for supporting and using tubular parts of different sizes, and the welding wire is inconvenient for conveying. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of existing tubular inner wall cladding that the size cannot be adjusted, it is inconvenient to support and use tubulars of different sizes, and it is inconvenient to transmit welding wires, and to propose a tubular inner wall cladding device and method.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A tubular inner wall surfacing device, comprising: A working plate, the bottom of which is provided with four supporting legs; An automatic welding machine is installed on the top of the working plate, and an automatic welding arm is provided on the automatic welding machine for surfacing welding the inner wall of the pipe-shaped part; A welding wire conveying mechanism is installed on the top of the working plate, and the welding wire is arranged on the welding wire conveying mechanism, and the welding wire is installed on the automatic welding arm; A welding wire conveying mechanism, installed on the top of the working plate, is used to convey the welding wire; The tubular member pushing mechanism is arranged on the top of the working plate. The tubular member is arranged on the tubular member pushing mechanism and is used to adjust the angle and position of the tubular member.

[0007] Preferably, the welding wire conveying mechanism includes a base, a vertical plate is fixedly installed on the top of the base, a reinforcement rod is fixedly installed between the vertical plate and the base, a winding shaft is rotatably installed on the vertical plate through a bearing, a welding wire roller is sleeved on the outer side of the winding shaft, the welding wire is wound around the outer side of the welding wire roller, a driving motor is installed on the outer side of the vertical plate, the output shaft of the driving motor is fixedly installed on the winding shaft, and a circular baffle is installed on the outer side of the winding shaft; the driving motor drives the welding wire roller to rotate through the winding shaft to loosen the welding wire, and the welding wire roller can be removed from the winding shaft.

[0008] Preferably, the welding wire transmission mechanism includes a rectangular rod, which is fixedly mounted on the top of the working plate, and a rectangular telescopic groove is opened on the top of the rectangular rod, in which a rectangular telescopic rod is slidably mounted, a bolt is threadedly connected to the outer side of the rectangular rod, and a twist handle is fixedly mounted on the outer side of the bolt, and a frame plate is fixedly mounted on the top of the rectangular telescopic rod, and a driving roller and a driven roller are rotatably mounted in the frame plate, and wire grooves are provided on the driving roller and the driven roller, and the two wire grooves are used to transmit the welding wire, and a servo motor is installed on the outer side of the frame plate, and the output shaft of the servo motor is fixedly mounted on the driving roller; the servo motor drives the driving roller to rotate, and the driving roller drives the driven roller to rotate, and the welding wire is transmitted forward through the cooperation of the driving roller and the driven roller.

[0009] Preferably, a rectangular hole is provided on the frame plate, a rectangular block is slidably installed in the rectangular hole, the driven roller is rotatably installed on the rectangular block, a reset spring is fixedly installed between the bottom of the rectangular block and the bottom inner wall of the rectangular hole, a handle is fixedly installed on the outer side of the driven roller, a vertical slide bar is fixedly installed in the rectangular hole, and the rectangular block is slidably installed on two vertical slide bars; in order to facilitate the transmission of welding wires of different sizes, the handle is pressed, the handle drives the driven roller to move downward, the driven roller drives the rectangular block to move downward and compresses the reset spring, and the welding wire passes through the driving roller and the driven roller, and then the handle is released, and the elastic force of the reset spring makes the rectangular block drive the driven roller to move upward, the driven roller contacts the driving roller, and the welding wire is stored between the two wire grooves.

[0010] Preferably, the tubular part pushing mechanism includes a movable plate, two sliding blocks are fixedly installed on the bottom of the movable plate, two sliding grooves are symmetrically opened on the top of the working plate, the two sliding blocks are slidably connected to the inner walls of the two sliding grooves, and two linear motors are installed on the top of the working plate, and the output shafts of the two linear motors are fixedly installed on the movable plate; the two linear motors push the movable plate to move close to the position of the automatic welding arm, and the automatic welding arm is used to perform surfacing welding on the deeper part of the tubular part.

[0011] Preferably, a transverse groove is provided on the top of the movable plate, and a bidirectional screw is rotatably installed in the transverse groove, the outer end of the bidirectional screw extends to the outside of the movable plate and is installed with a worm motor, and both ends of the bidirectional screw are threadedly connected with a transverse moving block, and a U-shaped piece is fixedly installed on the top of the two transverse moving blocks, and support rollers are rotatably installed in the two U-shaped pieces, and the two support rollers are used to support the tubular piece, and a synchronous motor is installed on the outer sides of the two U-shaped pieces, and the output shafts of the two synchronous motors are fixedly connected to the two support rollers, and limiting plates are fixedly installed on the two support rollers for limiting the tubular piece, and threaded holes are provided on the two transverse moving blocks, and the thread directions of the two threaded holes are opposite, and the two threaded holes are threadedly connected to the two ends of the bidirectional screw; the worm motor drives the bidirectional screw to rotate, and the bidirectional screws approach or move away from each other through the two transverse moving blocks, and then the tubular piece is placed on the top of the two support rollers, and the tubular piece is supported by the two support rollers.

[0012] Preferably, an electric push rod is fixedly installed on the top of the movable plate, and a blocking plate is installed on the output shaft of the electric push rod; the electric push rod drives the blocking plate to approach the tubular member to block and limit the tubular member to prevent the tubular member from falling off.

[0013] The present invention also provides a method for using the tubular inner wall cladding equipment, comprising the following steps: S1: Turn on the power supply and PLC controller to control the electrical appliances. The prior art will not be described here. To facilitate the transmission of welding wires of different sizes, press the handle, the handle drives the driven roller to move downward, the driven roller drives the rectangular block to move downward and compress the reset spring, the welding wire passes through the driving roller and the driven roller, and then release the handle. Through the elastic force of the reset spring, the rectangular block drives the driven roller to move upward, and the driven roller contacts the driving roller; S2: Turn the twist handle to drive the bolt to rotate, and the bolt leaves the rectangular rod, releasing the fixation of the rectangular rod, and adjusting the height of the rectangular rod and the frame plate; S3: In order to adapt to the support of tubular parts of different sizes, the worm motor is started to drive the bidirectional screw to rotate, and the bidirectional screws are moved closer to or away from each other through two lateral moving blocks, and then the tubular part is placed on the top of the two support rollers, and the tubular part is supported by the two support rollers. Two limit plates are set to limit the position of the tubular part; S4: The electric push rod drives the blocking plate to approach the tubular part, which is used to block and limit the position of the tubular part to prevent the tubular part from falling off; S5: The inner wall of the tube is welded by the automatic welding machine and the automatic welding arm. The servo motor drives the driving roller to rotate, and the driving roller drives the driven roller to rotate. The welding line is transmitted forward by the cooperation of the driving roller and the driven roller to automatically supply the line to the automatic welding arm. The two linear motors drive the moving plate to move close to the position of the automatic welding arm. The automatic welding arm is used to weld the deeper part of the tube. The two synchronous motors drive the two supporting rollers to rotate. The two supporting rollers drive the tube to rotate to adjust the angle, and then continue to weld the inner wall of the tube; S6: After welding is completed, the tube can be removed.

[0014] In the present invention, the beneficial effects of the tubular inner wall cladding equipment and method thereof are as follows: In order to facilitate the transmission of welding wires of different sizes, the present invention presses the handle, the handle drives the driven roller to move downward, the driven roller drives the rectangular block to move downward and compresses the reset spring, the welding wire passes through the driving roller and the driven roller, and then releases the handle, the elastic force of the reset spring causes the rectangular block to drive the driven roller to move upward, and the driven roller contacts the driving roller; In this solution, the twist handle is turned to drive the bolt to rotate, and the bolt leaves the rectangular rod, releasing the fixation of the rectangular rod, and adjusting the height of the rectangular rod and the frame plate; In order to adapt to the support of tubular parts of different sizes, this solution starts the worm motor to drive the bidirectional screw to rotate, and the bidirectional screws are moved closer to or away from each other through two lateral moving blocks, and then the tubular part is placed on the top of the two support rollers, and the tubular part is supported by the two support rollers. Two limit plates are set to limit the position of the tubular part; The electric push rod of this solution drives the blocking plate to approach the tubular part, which is used to block and limit the position of the tubular part to prevent the tubular part from falling off; This solution uses an automatic welding machine and an automatic welding arm to perform surfacing welding on the inner wall of a tube-shaped part. The servo motor drives the driving roller to rotate, and the driving roller drives the driven roller to rotate. The welding line is processed and transmitted forward by the cooperation of the driving roller and the driven roller to automatically supply the line to the automatic welding arm. Two linear motors drive the moving plate to move close to the position of the automatic welding arm, and the automatic welding arm performs surfacing welding on the deeper part of the tube-shaped part. Two synchronous motors drive two supporting rollers to rotate, and the two supporting rollers drive the tube-shaped part to rotate to adjust the angle, and then continue to perform surfacing welding on the inner wall of the tube-shaped part. The present invention can adapt to the support of tubular parts of different sizes by adjusting the distance between the two supporting rollers. The rotation of the two supporting rollers can drive the tubular parts to rotate for surfacing welding. By adjusting the distance between the driving roller and the driven roller, the transmission and use of welding wires of different sizes are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the structure of a tubular inner wall cladding device proposed by the present invention; Figure 2 A schematic diagram of the side structure of a tubular inner wall cladding device proposed by the present invention; Figure 3 This is a schematic diagram of the structure of a tubular inner wall cladding device proposed by the present invention from a bottom view; Figure 4 The present invention proposes Figure 2 Take down the structural diagram; Figure 5 This is a schematic diagram of the structure of the automatic welding machine, automatic welding arm, and welding wire conveying mechanism proposed by the present invention; Figure 6 It is a side view structural schematic diagram of the automatic welding machine, automatic welding arm, and welding wire conveying mechanism proposed by the present invention; Figure 7 A schematic diagram of the structure of the rectangular rod and its related parts proposed by the present invention; Figure 8 A schematic diagram of the structure of the welding wire conveying mechanism and its related parts proposed by the present invention; Fig. 9 The present invention proposes Figure 8 A side view structural schematic diagram of; Fig.10 This is a schematic diagram of the structure of the moving plate, linear motor, electric push rod, limit plate and related parts proposed by the present invention; Fig.11 The present invention proposes Fig.10 Schematic diagram of the structure viewed from above; Fig.12 The present invention proposes Fig.10 A side view structural schematic diagram of; Fig.13 This is a schematic diagram of the structure of the U-shaped member, support roller and related parts proposed by the present invention; Fig.14 The present invention proposes Fig.13 A side view structural schematic diagram of; Fig.15 The present invention proposes Fig.13 Schematic diagram of the structure viewed from above.

[0016] In the figure: 1, working plate; 11, supporting leg; 12, slide; 2, automatic welding machine; 21, automatic welding arm; 3, welding wire conveying mechanism; 31, base; 32, reinforcement rod; 33, vertical plate; 34, driving motor; 35, round baffle; 36, welding wire roller; 38, winding shaft; 4, welding wire conveying mechanism; 41, rectangular rod; 42, rectangular telescopic groove; 43, bolt; 431, twist handle; 44, rectangular telescopic rod; 45, frame plate; 46, driving roller; 47, driven roller; 471, handle; 48, servo motor; 49. Rectangular hole; 410. Vertical slide bar; 411. Rectangular block; 412. Return spring; 413. Wire groove; 5. Tubular part; 6. Tubular part pushing mechanism; 61. Moving plate; 62. Linear motor; 64. Slider; 65. Ball; 66. Worm motor; 67. Transverse groove; 68. Bidirectional screw; 69. Electric push rod; 610. Blocking plate; 611. U-shaped part; 612. Transverse moving block; 613. Threaded hole; 614. Support roller; 615. Limiting plate; 616. Synchronous motor; 7. Welding wire. DETAILED DESCRIPTION

[0017] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments. Embodiment 1

[0018] Reference Figure 1-Figure 15 , a tubular inner wall surfacing device, comprising: A working plate 1, the bottom of which is provided with four supporting legs 11; An automatic welding machine 2 is installed on the top of the working plate 1. The automatic welding machine 2 is provided with an automatic welding arm 21 for surfacing welding the inner wall of the tubular part; A welding wire conveying mechanism 3 is installed on the top of the working plate 1. A welding wire 7 is arranged on the welding wire conveying mechanism 3. The welding wire 7 is installed on the automatic welding arm 21. A welding wire conveying mechanism 4 is installed on the top of the working plate 1 and is used to convey the welding wire 7; The tubular member pushing mechanism 6 is arranged on the top of the working plate 1 . The tubular member 5 is arranged on the tubular member pushing mechanism 6 , and is used to adjust the angle and position of the tubular member 5 .

[0019] Reference Figure 5 , Figure 6In this embodiment, the welding wire conveying mechanism 3 includes a base 31, a vertical plate 33 is fixedly installed on the top of the base 31, a reinforcing rod 32 is fixedly installed between the vertical plate 33 and the base 31, a winding shaft 38 is rotatably installed on the vertical plate 33 through a bearing, a welding wire roller 36 is sleeved on the outer side of the winding shaft 38, and the welding wire 7 is wound around the outer side of the welding wire roller 36, a driving motor 34 is installed on the outer side of the vertical plate 33, the output shaft of the driving motor 34 is fixedly installed with the winding shaft 38, and a circular baffle 35 is installed on the outer side of the winding shaft 38; the driving motor 34 drives the welding wire roller 36 to rotate through the winding shaft 38 to loosen the welding wire 7, and the welding wire roller 36 can be removed from the winding shaft 38.

[0020] Reference Figure 7 , Figure 8 , Fig. 9 In this embodiment, the welding wire transmission mechanism 4 includes a rectangular rod 41, which is fixedly installed on the top of the working plate 1. A rectangular telescopic groove 42 is opened on the top of the rectangular rod 41, and a rectangular telescopic rod 44 is slidably installed in the rectangular telescopic groove 42. A bolt 43 is threadedly connected to the outer side of the rectangular rod 41, and a twist handle 431 is fixedly installed on the outer side of the bolt 43. A frame plate 45 is fixedly installed on the top of the rectangular telescopic rod 44, and a driving roller 46 and a driven roller 47 are rotatably installed in the frame plate 45. A wire groove 413 is provided on the driving roller 46 and the driven roller 47, and the two wire grooves 413 are used to transmit the welding wire 7. A servo motor 48 is installed on the outer side of the frame plate 45, and the output shaft of the servo motor 48 is fixedly installed with the driving roller 46; the servo motor 48 drives the driving roller 46 to rotate, and the driving roller 46 drives the driven roller 47 to rotate, and the welding wire is transmitted forward through the cooperation of the driving roller 46 and the driven roller 47.

[0021] Reference Figure 7 , Figure 8 , Fig. 9 In this embodiment, a rectangular hole 49 is provided on the frame plate 45, a rectangular block 411 is slidably installed in the rectangular hole 49, a driven roller 47 is rotatably installed on the rectangular block 411, a return spring 412 is fixedly installed between the bottom of the rectangular block 411 and the bottom inner wall of the rectangular hole 49, a handle 471 is fixedly installed on the outer side of the driven roller 47, a vertical slide bar 410 is fixedly installed in the rectangular hole 49, and the rectangular block 411 is slidably installed on the two vertical slide bars 410; in order to facilitate different The welding wire 7 of a certain size is conveyed by pressing the handle 471, which drives the driven roller 47 to move downward. The driven roller 47 drives the rectangular block 411 to move downward and compresses the reset spring 412, so that the welding wire 7 passes through the driving roller 46 and the driven roller 47. Then, the handle 471 is released, and the elastic force of the reset spring 412 causes the rectangular block 411 to drive the driven roller 47 to move upward. The driven roller 47 contacts the driving roller 46, and the welding wire 7 is stored between the two wire grooves 413.

[0022] Reference Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 In this embodiment, the tubular component pushing mechanism 6 includes a moving plate 61, two sliders 64 are fixedly installed at the bottom of the moving plate 61, two slide grooves 12 are symmetrically opened on the top of the working plate 1, the two sliders 64 are slidably connected to the inner walls of the two slide grooves 12, and two linear motors 62 are installed on the top of the working plate 1, and the output shafts of the two linear motors 62 are fixedly installed on the moving plate 61; the two linear motors 62 push the moving plate 61 to move close to the position of the automatic welding arm 21, and the automatic welding arm 21 is used to perform surfacing welding on the deeper part of the tubular component 5.

[0023] Reference Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 In this embodiment, a transverse groove 67 is provided on the top of the movable plate 61, and a bidirectional screw 68 is rotatably installed in the transverse groove 67. The outer end of the bidirectional screw 68 extends to the outside of the movable plate 61 and is installed with a worm motor 66. Both ends of the bidirectional screw 68 are threadedly connected with transverse moving blocks 612. U-shaped pieces 611 are fixedly installed on the tops of the two transverse moving blocks 612. Support rollers 614 are rotatably installed in the two U-shaped pieces 611. The two support rollers 614 are used to support the tubular piece 5. Synchronous motors 616 are installed on the outsides of the two U-shaped pieces 611. The two synchronous motors 616 The output shaft is fixedly connected to the two support rollers 614, and the two support rollers 614 are fixedly installed with limit plates 615 for limiting the tubular component 5. The two lateral moving blocks 612 are each provided with a threaded hole 613, and the thread directions of the two threaded holes 613 are opposite. The two threaded holes 613 are threadedly connected to the two ends of the bidirectional screw 68; the worm motor 66 drives the bidirectional screw 68 to rotate, and the bidirectional screw 68 approaches or moves away from each other through the two lateral moving blocks 612, and then the tubular component 5 is placed on the top of the two support rollers 614, and the tubular component 5 is supported by the two support rollers 614.

[0024] Reference Fig.12 In this embodiment, an electric push rod 69 is fixedly installed on the top of the movable plate 61, and a blocking plate 610 is installed on the output shaft of the electric push rod 69; the electric push rod 69 drives the blocking plate 610 to approach the tubular member 5, which is used to block and limit the tubular member 5 to prevent the tubular member 5 from falling off.

[0025] This embodiment also provides a method for using the tubular inner wall cladding equipment, comprising the following steps: S1: The electrical appliance can be controlled by turning on the power supply and the PLC controller. The prior art will not be described in detail here. In order to facilitate the transmission of welding wires 7 of different sizes, the handle 471 is pressed, and the handle 471 drives the driven roller 47 to move downward. The driven roller 47 drives the rectangular block 411 to move downward and compress the reset spring 412, so that the welding wire 7 passes through the driving roller 46 and the driven roller 47, and then the handle 471 is released. Through the elastic force of the reset spring 412, the rectangular block 411 drives the driven roller 47 to move upward, and the driven roller 47 contacts the driving roller 46; S2: Turn the twist handle 431 to drive the bolt 43 to rotate, and the bolt 43 leaves the rectangular rod 41, releasing the fixation of the rectangular rod 41, and adjusting the height of the rectangular rod 41 and the frame plate 45; S3: In order to adapt to the support of the tubular parts 5 of different sizes, the worm motor 66 is started to drive the bidirectional screw 68 to rotate, and the bidirectional screw 68 is moved closer to or away from each other through two lateral moving blocks 612, and then the tubular part 5 is placed on top of the two supporting rollers 614, and the tubular part 5 is supported by the two supporting rollers 614. The two limiting plates 615 are used to limit the position of the tubular part 5; S4: the electric push rod 69 drives the blocking plate 610 to approach the tubular member 5, so as to block and limit the position of the tubular member 5 to prevent the tubular member 5 from falling off; S5: The inner wall of the tubular member 5 is built-up welded by the automatic welding machine 2 and the automatic welding arm 21. The servo motor 48 drives the driving roller 46 to rotate, and the driving roller 46 drives the driven roller 47 to rotate. The welding wire is transmitted forward by the cooperation of the driving roller 46 and the driven roller 47 to automatically supply the wire to the automatic welding arm 21. The two linear motors 62 drive the moving plate 61 to move close to the position of the automatic welding arm 21, and the automatic welding arm 21 is used to build-up weld the inner part of the tubular member 5. The two synchronous motors 616 drive the two supporting rollers 614 to rotate, and the two supporting rollers 614 drive the tubular member 5 to rotate to adjust the angle, and then continue to build-up weld the inner wall of the tubular member 5. S6: After welding is completed, the tubular member 5 can be removed. Embodiment 2

[0026] The rest of the embodiment 2 is the same as the embodiment 1, except that: a plurality of balls 65 are embedded in the bottom of the slider 64, and the balls 65 are slidably connected to the bottom inner wall of the slide groove 12. The arrangement of the balls 65 can reduce the friction of the slider 64 in the slide groove 12. The present application includes all the structural shapes, sizes and materials of the embodiment 1, which can be selected and adjusted to meet the specific usage conditions. The accompanying drawings are all schematic structural diagrams, and the specific actual sizes can be appropriately adjusted.

[0027] The above description is only a preferred specific implementation manner of this embodiment, but the protection scope of this embodiment is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of this embodiment within the technical scope disclosed in this embodiment, and they should be covered by the protection scope of this embodiment.

Claims

1. A tubular inner wall cladding equipment, characterized in that: include: A working plate (1), wherein four supporting legs (11) are provided at the bottom of the working plate (1); An automatic welding machine (2) is installed on the top of the working plate (1), and an automatic welding arm (21) is provided on the automatic welding machine (2) for surfacing welding the inner wall of the tubular part; A welding wire conveying mechanism (3) is installed on the top of the working plate (1), a welding wire (7) is arranged on the welding wire conveying mechanism (3), and the welding wire (7) is installed on an automatic welding arm (21); A welding wire conveying mechanism (4) is installed on the top of the working plate (1) and is used to convey the welding wire (7); The tubular member pushing mechanism (6) is arranged on the top of the working plate (1), and the tubular member (5) is arranged on the tubular member pushing mechanism (6) for adjusting the angle and position of the tubular member (5).

2. The inner wall cladding equipment of a tubular part according to claim 1, characterized in that: The welding wire conveying mechanism (3) comprises a base (31), a vertical plate (33) is fixedly mounted on the top of the base (31), a reinforcing rod (32) is fixedly mounted between the vertical plate (33) and the base (31), a winding shaft (38) is rotatably mounted on the vertical plate (33) via a bearing, a welding wire roller (36) is sleeved on the outer side of the winding shaft (38), and the welding wire (7) is wound around the outer side of the welding wire roller (36).

3. The inner wall cladding equipment of a tubular part according to claim 2, characterized in that: A driving motor (34) is installed on the outer side of the vertical plate (33); an output shaft of the driving motor (34) is fixedly mounted on a reeling shaft (38); and a circular baffle (35) is installed on the outer side of the reeling shaft (38).

4. The inner wall cladding equipment of a tubular part according to claim 1, characterized in that: The welding wire conveying mechanism (4) comprises a rectangular rod (41), the rectangular rod (41) being fixedly mounted on the top of the working plate (1), the top of the rectangular rod (41) being provided with a rectangular telescopic slot (42), a rectangular telescopic rod (44) being slidably mounted in the rectangular telescopic slot (42), a bolt (43) being threadedly connected to the outer side of the rectangular rod (41), a twist handle (431) being fixedly mounted on the outer side of the bolt (43), a frame plate (45) being fixedly mounted on the top of the rectangular telescopic rod (44), a driving roller (46) and a driven roller (47) being rotatably mounted in the frame plate (45), a wire slot (413) being provided on each of the driving roller (46) and the driven roller (47), the space between the two wire slots (413) being used to convey the welding wire (7), a servo motor (48) being mounted on the outer side of the frame plate (45), an output shaft of the servo motor (48) being fixedly mounted on the driving roller (46).

5. The inner wall cladding equipment of a tubular part according to claim 4, characterized in that: The frame plate (45) is provided with a rectangular hole (49), a rectangular block (411) is slidably mounted in the rectangular hole (49), the driven roller (47) is rotatably mounted on the rectangular block (411), a return spring (412) is fixedly mounted between the bottom of the rectangular block (411) and the bottom inner wall of the rectangular hole (49), a handle (471) is fixedly mounted on the outer side of the driven roller (47), a vertical slide bar (410) is fixedly mounted in the rectangular hole (49), and the rectangular block (411) is slidably mounted on two vertical slide bars (410).

6. The inner wall cladding equipment of a tubular part according to claim 1, characterized in that: The tubular member pushing mechanism (6) comprises a movable plate (61), two sliders (64) are fixedly mounted on the bottom of the movable plate (61), two slide grooves (12) are symmetrically provided on the top of the working plate (1), the two sliders (64) are slidably connected to the inner walls of the two slide grooves (12), and two linear motors (62) are mounted on the top of the working plate (1), and the output shafts of the two linear motors (62) are fixedly mounted on the movable plate (61).

7. The inner wall cladding equipment of a tubular part according to claim 6, characterized in that: A transverse groove (67) is provided on the top of the movable plate (61), a bidirectional screw (68) is rotatably mounted in the transverse groove (67), the outer end of the bidirectional screw (68) extends to the outside of the movable plate (61) and is mounted with a worm motor (66), both ends of the bidirectional screw (68) are threadedly connected with transverse moving blocks (612), U-shaped pieces (611) are fixedly mounted on the tops of the two transverse moving blocks (612), support rollers (614) are rotatably mounted in the two U-shaped pieces (611), the two support rollers (614) are used to support the tubular piece (5), synchronous motors (616) are mounted on the outsides of the two U-shaped pieces (611), and the output shafts of the two synchronous motors (616) are fixedly connected to the two support rollers (614).

8. The inner wall cladding equipment of a tubular part according to claim 7, characterized in that: The two support rollers (614) are both fixedly mounted with a limit plate (615) for limiting the position of the tubular member (5). The two lateral moving blocks (612) are both provided with a threaded hole (613). The thread directions of the two threaded holes (613) are opposite. The two threaded holes (613) are threadedly connected to both ends of the bidirectional screw (68).

9. The inner wall cladding equipment of a tubular part according to claim 6, characterized in that: An electric push rod (69) is fixedly mounted on the top of the movable plate (61), and a blocking plate (610) is mounted on the output shaft of the electric push rod (69).

10. A method for using a tubular inner wall cladding device, wherein the tubular inner wall cladding device is the tubular inner wall cladding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Turn on the power supply and the PLC controller. To facilitate the transmission of welding wires (7) of different sizes, press the handle (471), the handle (471) drives the driven roller (47) to move downward, the driven roller (47) drives the rectangular block (411) to move downward and compress the return spring (412), so that the welding wire (7) passes through the driving roller (46) and the driven roller (47), and then release the handle (471). Through the elastic force of the return spring (412), the rectangular block (411) drives the driven roller (47) to move upward, and the driven roller (47) contacts the driving roller (46); S2: rotating the twist handle (431) to drive the bolt (43) to rotate, so that the bolt (43) leaves the rectangular rod (41), releases the fixation of the rectangular rod (41), and adjusts the height of the rectangular rod (41) and the frame plate (45); S3: In order to accommodate the support of tubular components (5) of different sizes, the worm motor (66) is started to drive the bidirectional screw (68) to rotate, and the bidirectional screw (68) is moved closer to or farther away from each other through two lateral moving blocks (612), and then the tubular component (5) is placed on top of two supporting rollers (614), and the tubular component (5) is supported by the two supporting rollers (614), and two limiting plates (615) are provided to limit the position of the tubular component (5); S4: the electric push rod (69) drives the blocking plate (610) to approach the tubular member (5) to block and limit the position of the tubular member (5) to prevent the tubular member (5) from falling off; S5: Using the automatic welding machine (2) and the automatic welding arm (21) to perform surfacing welding on the inner wall of the tubular member (5), the servo motor (48) drives the driving roller (46) to rotate, the driving roller (46) drives the driven roller (47) to rotate, the driving roller (46) and the driven roller (47) cooperate to process the welding wire forward, and automatically supply the wire to the automatic welding arm (21), the two linear motors (62) drive the moving plate (61) to move close to the position of the automatic welding arm (21), and the automatic welding arm (21) performs surfacing welding on the deeper part of the inside of the tubular member (5), the two synchronous motors (616) drive the two supporting rollers (614) to rotate, the two supporting rollers (614) drive the tubular member (5) to rotate to adjust the angle, and then continue to perform surfacing welding on the inner wall of the tubular member (5); S6: After welding is completed, the pipe-shaped part (5) can be removed.

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