High-precision welding device for flange welding

Abstract

The invention provides a high-precision welding device for flange welding, and relates to the technical field of flange welding. The positioning and fixing mechanism is mounted above the rotation control mechanism; the bottom of the position moving assembly is inserted into the rotation control mechanism. The driving device is installed in the position moving assembly and connected with the rotation control mechanism. The self-control welding mechanism is connected with the driving device and the position moving assembly. The welding rod pushing mechanism is installed on the top of the position moving assembly. The flange can be controlled to be quickly positioned, clamped and fixed; the flange can automatically rotate; meanwhile, a welding gun simulation point can be controlled to complete rapid welding according to a technique; welding rods can be controlled to be continuously and automatically conveyed; the problem that the welding position of the flange is arc-shaped, and high proficiency is needed is solved; errors are easy to occur; in the welding process, workers need to have extremely high control force through the frequent point pressing welding method; the body of a welding worker is prone to fatigue, and the welding speed and efficiency are affected.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of flange welding, and particularly relates to a high-precision welding device for flange welding. BACKGROUND

[0002] As a crucial mechanical component in the connection of industrial pipelines and equipment, flanges play an indispensable role in various industrial scenarios. They are mainly used to achieve detachable connections between elements such as pipelines, valves, and pump bodies. This connection method not only facilitates the installation, maintenance, and replacement of equipment, but also greatly improves the flexibility of industrial production. The core function of flanges lies in ensuring the strength and sealing performance of the connection through bolt fastening and the cooperation of sealing materials. Due to this characteristic, flanges are widely used in many fields such as petroleum, chemical industry, power, metallurgy, and pharmaceuticals, becoming a key element to ensure the stable operation of production processes in these industries. During factory processing, one side of the flange plate needs to be welded with a connecting rod or a pipeline. Traditional manual welding operation methods have many problems. The worker needs to hold the welding gun and welding rod with both hands for cooperative welding. The welding position is arc-shaped, which requires a high level of skill from the worker. Ordinary workers are prone to make mistakes during such welding, which affects the quality and precision of the welding. In addition, during the welding process, the welding method of frequent tapping is commonly used. This method is difficult to master because the frequent tapping action requires the worker to have high control. Long-term maintenance of such operation can easily cause physical fatigue of the welder, affecting the work efficiency of the worker and the overall welding processing speed. SUMMARY

[0003] The present application relates to a high-precision welding device for flange welding, which has a positioning and fixing mechanism that can control the positioning, clamping, and fixing of the flange, facilitating subsequent welding processing. A rotation control mechanism can automatically rotate the flange for welding. A driving device and a self-control welding mechanism can control the welding gun to move back and forth at a small distance while driving the flange to rotate, quickly and accurately welding the connection, effectively improving the welding speed and efficiency. A welding rod pushing mechanism can control the continuous delivery of the welding rod to assist the welding gun in rapid welding processing.

[0004] The present application provides a high-precision welding device for flange welding, specifically including: a rotation control mechanism, a positioning and fixing mechanism, a position moving assembly, a driving device, a self-control welding mechanism, and a welding rod pushing mechanism. The rotating control mechanism is a cuboid structure as a whole; the positioning and fixing mechanism is installed above the rotating control mechanism; the position moving assembly is inserted into the rotating control mechanism at the bottom; the driving device is installed in the position moving assembly and connected with the rotating control mechanism; the self-control welding mechanism is connected with the driving device and the position moving assembly; the electrode pushing mechanism is installed on the top of the position moving assembly; the rotating control mechanism comprises a bottom supporting plate, an inner supporting block and a rotating column; the bottom supporting plate is a hollow cuboid structure; the inner supporting block is fixedly installed in the bottom supporting plate; the rotating column is a cylindrical structure with a hexagonal sliding slot on one side, and the rotating column is rotationally connected with the inner supporting block.

[0005] Preferably, the rotating control mechanism further comprises a driving plug rod, a linkage rod A, a control rotating rod, a supporting ring and a tooth ring; the driving plug rod is a hexagonal structure, and the driving plug rod is slidably inserted into the sliding slot of the rotating column; the linkage rod A is provided with a gear on the surface, and the linkage rod A is rotationally installed in the bottom supporting plate and rotationally connected with the rotating column through a bevel gear assembly; the control rotating rod is rotationally inserted into the bottom supporting plate; the supporting ring is fixedly connected with the control rotating rod; and the tooth ring is fixedly installed on the surface of the supporting ring and meshingly connected with the gear on the surface of the linkage rod A.

[0006] Preferably, the positioning and fixing mechanism comprises a supporting disc, a motor A, a master control rod and a clamping and fixing assembly; the supporting disc is a disc structure with a sliding slot on the surface, and the bottom of the supporting disc is fixedly connected with the control rotating rod; the motor A is installed in the supporting disc; the master control rod is rotationally installed in the supporting disc and connected with the motor A through a bevel gear assembly; and the clamping and fixing assembly is installed in the supporting disc.

[0007] Preferably, the clamping and fixing assembly further comprises a bottom rod, a supporting rod, a threaded control rod A, a sliding and fixing clamp plate and a linkage rod B; the bottom rod is fixedly installed in the supporting disc; the bottom rod is fixedly connected with the supporting rod at the top; the threaded control rod A is rotationally installed in the sliding slot of the supporting rod; the sliding and fixing clamp plate is slidably inserted into the sliding slots of the supporting disc and the supporting rod and threadedly connected with the threaded control rod A, and the threaded control rod A can control the sliding and fixing clamp plate to slide and clamp by rotating; and the linkage rod B is rotationally inserted into the supporting rod at the bottom and rotationally connected with the threaded control rod A through a bevel gear assembly, the gear on the surface of the linkage rod B is meshingly connected with the gear on the surface of the master control rod, and the master control rod can control a plurality of linkage rods B to rotate at the same time.

[0008] Preferably, the position moving assembly comprises a threaded control rod B, a supporting box and a supporting base; the threaded control rod B is rotationally inserted through the threaded hole on the surface of the bottom supporting plate; the supporting box is slidably inserted into the bottom supporting plate at the bottom and rotationally connected with the threaded control rod B; and the supporting base is fixedly installed on the surface of the supporting box.

[0009] Preferably, the driving device comprises: a motor B, a linkage rod C and a linkage control assembly; the motor B is installed on one side of a support box, a driving shaft on one side of the motor B rotates through the support box and is fixedly connected with a driving rod; the linkage rod C is rotatably installed in the support box, and a surface of the linkage rod C is rotatably connected with a motor driving shaft of the motor B through a bevel gear assembly; and the linkage control assembly is installed in the support box and connected with the linkage rod C.

[0010] Preferably, the linkage control assembly further comprises: a support, a rotating support rod A, a transmission belt pulley A, a belt, a rotating support rod B, a toothless gear and a transmission belt pulley B; the support is fixedly installed in the support box; the rotating support rod A is rotatably installed in the support and rotatably connected with the linkage rod C through a bevel gear assembly; the transmission belt pulley A is fixedly installed on a surface of the rotating support rod A; the belt is connected with the transmission belt pulley A on the inner side; the rotating support rod B is rotatably installed in the support; the toothless gear is fixedly installed on a surface of the rotating support rod B; and the transmission belt pulley B is fixedly installed on the surface of the rotating support rod B and connected with the belt.

[0011] Preferably, the self-control welding mechanism comprises: a support pipe, a welding gun, a bottom support ring, a spring, a driving toothed plate and a top stop ring; the support pipe is a circular pipe structure with a sliding groove on the surface, and the support pipe is fixedly connected with the support box; the welding gun slides through the support pipe; the bottom support ring is fixedly installed on the surface of the welding gun; the spring is connected with the support pipe and the bottom support ring on both sides; the driving toothed plate is fixedly connected with the welding gun on one side through the sliding groove of the support pipe; and the top stop ring is fixedly installed on the surface of the welding gun and can play a limiting role.

[0012] Preferably, the electrode pushing mechanism comprises: a support rod, a threaded control rod C, a motor C, a sliding push plate, an insertion support pipe, a rubber support ring and an electrode; the support rod is a rectangular structure with a T-shaped sliding groove in the inside, and the support rod is fixedly connected with the support base on the bottom; one end of the threaded control rod C is rotatably inserted into the sliding groove in the inside of the support rod; the motor C is connected with the threaded control rod C; the sliding push plate is slidably inserted into the sliding groove in the inside of the support rod and is threadedly connected with the threaded control rod C; the insertion support pipe is a cylindrical structure with a circular groove on one side, and the surface of the insertion support pipe is fixedly connected with the sliding push plate; the rubber support ring is fixedly installed on the surface of the support rod; and one end of the electrode is slidably inserted into the sliding groove in the inside of the insertion support pipe, and the electrode is inserted into the rubber support ring.

[0013] The present application has the following beneficial effects The present application is internally provided with a positioning and fixing mechanism, a plurality of sliding and fixing clamping plates are internally provided in the positioning and fixing mechanism, the plurality of sliding and fixing clamping plates can be simultaneously slid inwards and push the placed flanges to move, automatic positioning and clamping and fixing are completed, and subsequent welding processing is facilitated.

[0014] The internal rotating control mechanism is connected with the positioning and fixing mechanism, and the rotating control mechanism can control the automatic rotation of the flange during the welding process, and the welding is matched, so that manual movement welding along the connecting position is not needed, the process is simple, the welding precision and quality are high.

[0015] The internal rotating control mechanism is connected with the positioning and fixing mechanism, and the rotating control mechanism can control the automatic rotation of the flange during the welding process, and the welding is matched, so that manual movement welding along the connecting position is not needed, the process is simple, the welding precision and quality are high.

[0016] The internal rotating control mechanism is connected with the positioning and fixing mechanism, and the rotating control mechanism can control the automatic rotation of the flange during the welding process, and the welding is matched, so that manual movement welding along the connecting position is not needed, the process is simple, the welding precision and quality are high. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below.

[0018] The drawings described in the following description only relate to some embodiments of the present application, and are not limited to the present application.

[0019] In the drawings: Figure 1 The structure schematic view of the main shaft side view of the present application is shown. Figure 2 The structure schematic view of the main shaft side view of the present application is shown. Figure 3 The structure schematic view of the rotating control mechanism section view of the present application is shown. Figure 4 The structure schematic view of the positioning and fixing mechanism section view of the present application is shown. Figure 5 The structure schematic view of the clamping and fixing assembly section view of the present application is shown. Figure 6 The structure schematic view of the position moving assembly section view of the present application is shown. Figure 7 The structure schematic view of the linkage control assembly section view of the present application is shown. Figure 8 The structure schematic view of the self-control welding mechanism section view of the present application is shown. Figure 9 The structure schematic view of the welding rod pushing mechanism section view of the present application is shown.

[0020] LIST OF REFERENCE NUMERALS 1, rotation control mechanism; 101, bottom support plate; 102, inner support block; 103, rotating column; 104, driving plug; 105, linkage rod A; 106, control rotating rod; 107, support ring; 108, gear ring; 2, positioning and fixing mechanism; 201, support disc; 202, motor A; 203, main control rod; 204, clamping and fixing assembly; 2041, bottom rod; 2042, support rod; 2043, threaded control rod A; 2044, sliding and fixing clamp plate; 2045, linkage rod B; 3, position moving assembly; 301, threaded control rod B; 302, support box; 303, support base; 4, driving device; 401, motor B; 402, linkage rod C; 403, linkage control assembly; 4031, support; 4032, rotating support rod A; 4033, transmission belt pulley A; 4034, belt; 4035, rotating support rod B; 4036, gear with missing teeth; 4037, transmission belt pulley B; 5, self-control welding mechanism; 501, support pipe; 502, welding gun; 503, bottom support ring; 504, spring; 505, driving gear plate; 506, top stop ring; 6, welding rod pushing mechanism; 601, support rod; 602, threaded control rod C; 603, motor C; 604, sliding push plate; 605, insertion support pipe; 606, rubber support ring; 607, welding rod. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described in detail below with reference to the drawings and examples.

[0022] Embodiment: please refer to Figures 1 to 9 : The present application provides a high-precision welding device for flange welding, comprising: a rotation control mechanism 1, a positioning and fixing mechanism 2, a position moving assembly 3, a driving device 4, a self-control welding mechanism 5 and a welding rod pushing mechanism 6. The rotation control mechanism 1 is a cuboid structure; the positioning and fixing mechanism 2 is installed above the rotation control mechanism 1; the position moving assembly 3 is inserted into the inside of the rotation control mechanism 1 at the bottom; the driving device 4 is installed in the position moving assembly 3 and connected with the rotation control mechanism 1; the self-control welding mechanism 5 is connected with the driving device 4 and the position moving assembly 3; the welding rod pushing mechanism 6 is installed at the top of the position moving assembly 3; the rotation control mechanism 1 comprises: a bottom support plate 101, an inner support block 102 and a rotating column 103; the bottom support plate 101 is a hollow cuboid structure; the inner support block 102 is fixedly installed in the inside of the bottom support plate 101; the rotating column 103 is a cylindrical structure with a hexagonal sliding groove on one side, and the rotating column 103 is rotationally connected with the inner support block 102.

[0023] As Figure 3As shown, the rotating control mechanism 1 further comprises: a driving plug rod 104, a linkage rod A 105, a control rotating rod 106, a support ring 107 and a tooth ring 108; the driving plug rod 104 is a hexagonal structure, and is slidably inserted into the sliding groove of the rotating column 103 on one side; the linkage rod A 105 is provided with a gear on the surface, is rotatably installed in the bottom support plate 101, and is rotatably connected with the rotating column 103 through a bevel gear assembly; the control rotating rod 106 is rotatably inserted into the bottom support plate 101; the support ring 107 is fixedly connected with the control rotating rod 106; and the tooth ring 108 is fixedly installed on the surface of the support ring 107 and is meshingly connected with the gear on the surface of the linkage rod A 105.

[0024] As shown in Figure 4 The positioning and fixing mechanism 2 comprises: a support disc 201, a motor A 202, a master control rod 203 and a clamping and fixing assembly 204; the support disc 201 is a disc-shaped structure with a sliding groove on the surface, and the bottom of the support disc 201 is fixedly connected with the control rotating rod 106; the motor A 202 is installed in the support disc 201; the master control rod 203 is rotatably installed in the support disc 201 and is connected with the motor A 202 through a bevel gear assembly; and the clamping and fixing assembly 204 is installed in the support disc 201.

[0025] As shown in Figure 5 The clamping and fixing assembly 204 further comprises: a bottom rod 2041, a support rod 2042, a threaded control rod A 2043, a sliding and fixing clamp plate 2044 and a linkage rod B 2045; the bottom rod 2041 is fixedly installed in the support disc 201; the bottom rod 2041 is fixedly connected with the support rod 2042 on the top; the threaded control rod A 2043 is rotatably installed in the sliding groove of the support rod 2042; the sliding and fixing clamp plate 2044 is slidably inserted into the sliding grooves of the support disc 201 and the support rod 2042 and is threadedly connected with the threaded control rod A 2043, and the threaded control rod A 2043 can control the sliding and fixing clamp plate 2044 to slide and clamp; the linkage rod B 2045 is rotatably inserted into the support rod 2042 and is rotatably connected with the threaded control rod A 2043 through a bevel gear assembly, and the gear on the surface of the linkage rod B 2045 is meshingly connected with the gear on the surface of the master control rod 203, so that the master control rod 203 can control a plurality of linkage rods B 2045 to rotate simultaneously.

[0026] As shown in Figure 5 The position moving assembly 3 comprises: a threaded control rod B 301, a support box 302 and a support base 303; the threaded control rod B 301 is rotatably inserted through the threaded hole in the surface of the bottom support plate 101; the support box 302 is slidably inserted into the bottom support plate 101 on the bottom and is rotatably connected with the threaded control rod B 301; and the support base 303 is fixedly installed on the surface of the support box 302.

[0027] As shown in Figure 6As shown, the driving device 4 comprises: a motor B401, a linkage rod C402 and a linkage control assembly 403; the motor B401 is installed on one side of the support box 302, and a driving shaft on one side of the motor B401 rotates through the support box 302 and is fixedly connected with the driving plug rod 104; the linkage rod C402 is rotatably installed in the support box 302, and the surface of the linkage rod C402 is rotatably connected with the motor driving shaft of the motor B401 through a bevel gear assembly; the linkage control assembly 403 is installed in the support box 302 and connected with the linkage rod C402.

[0028] As shown in Figure 7 , the linkage control assembly 403 further comprises: a support 4031, a rotating support rod A4032, a transmission belt pulley A4033, a belt 4034, a rotating support rod B4035, a missing tooth gear 4036 and a transmission belt pulley B4037; the support 4031 is fixedly installed in the support box 302; the rotating support rod A4032 is rotatably installed in the support 4031 and rotatably connected with the linkage rod C402 through a bevel gear assembly; the transmission belt pulley A4033 is fixedly installed on the surface of the rotating support rod A4032; the inner side of the belt 4034 is connected with the transmission belt pulley A4033; the rotating support rod B4035 is rotatably installed in the support 4031; the missing tooth gear 4036 is fixedly installed on the surface of the rotating support rod B4035; and the transmission belt pulley B4037 is fixedly installed on the surface of the rotating support rod B4035 and connected with the belt 4034.

[0029] As shown in Figure 8 , the self-control welding mechanism 5 comprises: a support pipe 501, a welding gun 502, a bottom support ring 503, a spring 504, a driving toothed plate 505 and a top stop ring 506; the support pipe 501 is a circular pipe structure with a sliding groove on the surface, and the support pipe 501 is fixedly connected with the support box 302; the welding gun 502 slides through the support pipe 501; the bottom support ring 503 is fixedly installed on the surface of the welding gun 502; the spring 504 is connected with the support pipe 501 and the bottom support ring 503 on both sides; one side of the driving toothed plate 505 passes through the sliding groove of the support pipe 501 and is fixedly connected with the welding gun 502; and the top stop ring 506 is fixedly installed on the surface of the welding gun 502, and the top stop ring 506 can play a limiting role.

[0030] As shown in Figure 9As shown, the electrode pushing mechanism 6 comprises a support rod 601, a threaded control rod C 602, a motor C 603, a sliding push plate 604, an insertion support pipe 605, a rubber support ring 606 and an electrode 607. The support rod 601 is a cuboid structure with a T-shaped sliding groove inside, and the bottom of the support rod 601 is fixedly connected with the support base 303. One end of the threaded control rod C 602 is rotatably inserted into the sliding groove inside the support rod 601. The motor C 603 is connected with the threaded control rod C 602. The sliding push plate 604 is slidably inserted into the sliding groove inside the support rod 601 and is threadedly connected with the threaded control rod C 602. The insertion support pipe 605 is a cylindrical structure with a circular groove on one side, and the surface of the insertion support pipe 605 is fixedly connected with the sliding push plate 604. The rubber support ring 606 is fixedly installed on the surface of the support rod 601. One end of the electrode 607 is slidably inserted into the sliding groove inside the insertion support pipe 605, and the electrode 607 is inserted into the rubber support ring 606.

[0031] The specific use mode and effect of the application: during the flange welding process, the connecting rod needs to be butt jointed with the flange and welded at several positions for fixation, then the flange is placed on the surface of the support disc 201, the control motor A202 is started, the main control rod 203 is rotated through the bevel gear assembly, since the top of the main control rod 203 is provided with a gear, and the gear is meshed and connected with the top gears of the three sets of linkage rods B2045, the linkage rods B2045 are controlled to rotate, the linkage rods B2045 further drive the threaded control rod A2043 to rotate through the bevel gear assembly, the threads on the surface of the threaded control rod A2043 can control the three sets of sliding fixed clamping plates 2044 to slide inward at the same time in the process of rotation, the sliding fixed clamping plates 2044 can push the flange to move to the center position and form clamping and fixation, after the flange fixation is completed, the threaded control rod B301 is rotated, the threaded control rod B301 can push the support box 302 to move in the process of rotation, since the support box 302 is provided with the self-control welding mechanism 5 and the welding rod pushing mechanism 6 on the surface and is controlled to slide, the welding point and the flange connection complete butt joint, after installation is completed, the control motor B401 is started, the motor B401 drives the insertion rod 104 to rotate through the one end drive shaft, the insertion rod 104 is a hexagonal structure, the other end of the insertion rod 104 is slidably inserted into the hexagonal sliding groove of the rotating column 103, the rotating column 103 is controlled to rotate, the other end of the rotating column 103 is rotatably connected with the linkage rod A105 through the bevel gear assembly, the gear on the surface of the linkage rod A105 is meshed and connected with the tooth ring 108, the control rotating rod 106, the support ring 107 and the tooth ring 108 are controlled to rotate, the positioning and fixing mechanism 2 on the top of the control rotating rod 106 and the fixed flange are rotated, which is convenient for welding at the connection, in the process of rotation of the drive shaft of the motor B401, the linkage rod C402 is rotatably connected with the drive shaft through the bevel gear assembly and rotates, the linkage rod C402 rotates and controls the rotating support rod A4032 to rotate through the bevel gear assembly again, since the rotating support rod A4032 is rotatably connected through the transmission belt pulley A4033, the belt 4034, the transmission belt pulley B4037 and the rotating support rod B4035, the rotating support rod B4035 rotates, the missing gear 4036 rotates, the gear on the surface of the missing gear 4036 can control the intermittent sliding of the tooth plate 505 in the process of rotation, and then the intermittent pressing of the welding gun 502 on the flange connection can be controlled, after the pressing distance of one end, the pushing force controlled by the missing gear 4036 is released, the spring 504 controls the rebound, the welding gun 502 reciprocatingly presses, and the automatic welding is carried out in cooperation with the welding rod 607; during the welding process, the welding rod 607 will be consumed accordingly, the motor C603 can be started at the same time when the welding work starts, the motor C603 controls the threaded control rod C602 to rotate, and then controls the sliding push plate 604 to move the welding rod 607 through the inserted support pipe 605, and cooperates with the welding.

[0032] In this paper, the following points need attention: 1. The drawings in the embodiments of the present application only relate to the structures involved in the embodiments of the present application, and other structures can refer to the general design.

[0033] 2. In the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other to obtain new embodiments.

[0034] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A high-precision welding apparatus for flange welding, comprising: Rotation control mechanism (1), positioning and fixing mechanism (2), position moving component (3), drive device (4), self-controlled welding mechanism (5), and welding rod pushing mechanism (6); The rotation control mechanism (1) is a rectangular parallelepiped structure. The positioning and fixing mechanism (2) is installed above the rotation control mechanism (1). The bottom of the position moving component (3) is inserted into the rotation control mechanism (1). The driving device (4) is installed inside the position moving component (3) and connected to the rotation control mechanism (1). The self-controlled welding mechanism (5) is connected to the driving device (4) and the position moving component (3). The welding rod pushing mechanism (6) is installed on the top of the position moving component (3). The rotation control mechanism (1) includes: a bottom support plate (101), an inner support block (102) and a rotating column (103). The inner support block (102) is fixedly installed inside the bottom support plate (101). The rotating column (103) is rotatably connected to the inner support block (102).

2. The high-precision welding device for flange welding according to claim 1, characterized in that: The rotation control mechanism (1) further includes: a drive rod (104), a linkage rod A (105), a control rod (106), a support ring (107), and a gear ring (108); the drive rod (104) is slidably inserted into the groove of the rotating column (103) on one side; a gear is fixedly provided on the surface of the linkage rod A (105), and the linkage rod A (105) is rotatably installed inside the bottom support plate (101), and the linkage rod A (105) is rotatably connected to the rotating column (103) through a bevel gear assembly; the control rod (106) is rotatably inserted into the bottom support plate (101); the support ring (107) is fixedly connected to the control rod (106); the gear ring (108) is fixedly installed on the surface of the support ring (107) and meshes with the gear on the surface of the linkage rod A (105).

3. The high-precision welding device for flange welding according to claim 2, characterized in that: The positioning and fixing mechanism (2) includes: a support plate (201), a motor A (202), a main control rod (203), and a clamping and fixing assembly (204); the bottom of the support plate (201) is fixedly connected to the control rotating rod (106); the motor A (202) is installed inside the support plate (201); the main control rod (203) is rotatably installed inside the support plate (201) and connected to the motor A (202) through a bevel gear assembly; the clamping and fixing assembly (204) is installed inside the support plate (201).

4. The high-precision welding device for flange welding according to claim 3, characterized in that: The clamping and fixing assembly (204) further includes: a bottom rod (2041), a support rod (2042), a threaded control rod A (2043), a sliding fixing clamp (2044), and a linkage rod B (2045); the bottom rod (2041) is fixedly installed inside the support plate (201); the top of the bottom rod (2041) is fixedly connected to the support rod (2042); the threaded control rod A (2043) is rotatably installed inside the groove of the support rod (2042); the bottom of the sliding fixing clamp (2044) is slidably inserted into the groove of the support plate (201) and the support rod (2042) and threadedly connected to the threaded control rod A (2043); the bottom of the linkage rod B (2045) is rotatably inserted into the support rod (2042) and rotatably connected to the threaded control rod A (2043) through a bevel gear assembly, and the gear on the surface of the linkage rod B (2045) meshes with the gear on the surface of the main control rod (203).

5. The high-precision welding device for flange welding according to claim 2, characterized in that: The position moving component (3) includes: a threaded control rod B (301), a support box (302), and a support base (303); the threaded control rod B (301) rotates through the threaded hole on the surface of the bottom support plate (101); the bottom of the support box (302) slides into the interior of the bottom support plate (101) and is rotatably connected to the threaded control rod B (301); the support base (303) is fixedly installed on the surface of the support box (302).

6. The high-precision welding device for flange welding according to claim 5, characterized in that: The drive device (4) includes: motor B (401), linkage rod C (402) and linkage control component (403); motor B (401) is installed on one side of the support box (302), and the drive shaft on one side of motor B (401) rotates through the support box (302) and is fixedly connected to the drive rod (104); linkage rod C (402) is rotatably installed inside the support box (302), and the surface of linkage rod C (402) is rotatably connected to the drive shaft of motor B (401) through a bevel gear assembly; linkage control component (403) is installed inside the support box (302) and connected to linkage rod C (402).

7. The high-precision welding device for flange welding according to claim 6, characterized in that: The linkage control assembly (403) further includes: a bracket (4031), a rotating support rod A (4032), a transmission pulley A (4033), a belt (4034), a rotating support rod B (4035), a missing gear (4036), and a transmission pulley B (4037); the bracket (4031) is fixedly installed inside the support box (302); the rotating support rod A (4032) is rotatably installed inside the bracket (4031) and is connected to the linkage rod C (402) via a bevel gear assembly. Rotary connection; transmission pulley A (4033) is fixedly installed on the surface of rotating support rod A (4032); the inner side of belt (4034) is connected to transmission pulley A (4033); rotating support rod B (4035) is rotatably installed inside bracket (4031); missing gear (4036) is fixedly installed on the surface of rotating support rod B (4035); transmission pulley B (4037) is fixedly installed on the surface of rotating support rod B (4035) and connected to belt (4034).

8. The high-precision welding device for flange welding according to claim 5, characterized in that: The self-controlled welding mechanism (5) includes: a support tube (501), a welding torch (502), a bottom support ring (503), a spring (504), a drive toothed plate (505), and a top stop ring (506); the support tube (501) is fixedly connected to the support box (302); the welding torch (502) slides through the support tube (501); the bottom support ring (503) is fixedly installed on the surface of the welding torch (502); the two sides of the spring (504) are respectively connected to the support tube (501) and the bottom support ring (503); one side of the drive toothed plate (505) passes through the groove of the support tube (501) and is fixedly connected to the welding torch (502); the top stop ring (506) is fixedly installed on the surface of the welding torch (502).

9. The high-precision welding device for flange welding according to claim 5, characterized in that: The electrode pushing mechanism (6) includes: a support rod (601), a threaded control rod C (602), a motor C (603), a sliding push plate (604), an inserting branch pipe (605), a rubber support ring (606), and a welding electrode (607); the bottom of the support rod (601) is fixedly connected to the support base (303); one end of the threaded control rod C (602) is rotatably inserted into the groove of the support rod (601); the motor C (603) and the threaded control rod C (604) are connected to each other. 602) Connected to each other; the sliding push plate (604) is slidably inserted into the groove of the support rod (601) and threadedly connected to the threaded control rod C (602); the surface of the insertion branch pipe (605) is fixedly connected to the sliding push plate (604); the rubber support ring (606) is fixedly installed on the surface of the support rod (601); one end of the welding rod (607) is slidably inserted into the groove of the insertion branch pipe (605), and the welding rod (607) is inserted into the rubber support ring (606).

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