CN215316694U - Welding tool for end socket assembly - Google Patents

Abstract

The utility model provides a welding tool of an end socket assembly, wherein the end socket assembly comprises an end socket body and a reinforcing plate sleeved on the periphery of the end socket body; the reinforcing plate extends outwards along the radial direction of the seal head body; the welding tool comprises a fixed frame, a rotating frame and a fixed assembly; the rotating frame is rotatably connected to the fixed frame, and the rotating axis of the rotating frame is horizontally arranged; the fixing assembly comprises a fixing disc and a plurality of sliding blocks arranged on the fixing disc, the fixing disc is rotatably connected onto the rotating frame, the rotating axis of the fixing disc is vertically arranged, the fixing disc is used for fixing the seal head body, the sliding blocks are slidably connected onto the fixing disc, the sliding blocks are abutted to the reinforcing plate, and the reinforcing plate is limited between the seal head body and the sliding blocks. The welding tool can limit the end socket assemblies with different sizes through the slidable sliding block, so that the end socket assemblies with different sizes can be clamped at one time, multi-angle rotating welding forming is realized, the production cost is reduced, and the welding quality is improved.

Description

Welding tool for end socket assembly

Technical Field

The utility model relates to the technical field of welding, in particular to a welding tool for an end socket assembly.

Background

At present, under the condition of comprehensively considering environment and cost, the production and the use processes of concrete are not combined, and the concrete is generally conveyed by a concrete mixing and transporting vehicle, so that on one hand, the concrete is fully mixed, and on the other hand, the concrete is ensured not to be solidified in the transportation process.

In the concrete transportation process, the end socket assembly is an important structural part in the concrete mixing truck, the welding quality of the end socket assembly directly influences the service life of the mixing truck, and in the welding process, the coaxiality of a tank body of the mixing truck is poor due to welding deformation frequently, so that after the tank body is assembled with a frame, the tank body swings due to eccentricity when rotating, and the safety of the mixing truck in the use process is directly influenced. And the seal head assemblies of different types of mixer trucks are different in size. At present, the welding tool on the market can not carry out one-time clamping and multiple welding on the end socket assemblies with different sizes, and has more processes, higher cost and poorer welding quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding tool for a concrete mixing and transporting truck head assembly, which can stably and accurately weld the head assembly at one time after fixing the head assemblies with different sizes, thereby improving the welding quality, reducing the working procedures, lowering the cost and improving the welding quality.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a welding tool of an end socket assembly, wherein the end socket assembly comprises an end socket body and a reinforcing plate sleeved on the periphery of the end socket body; the reinforcing plate extends outwards along the radial direction of the seal head body; the welding tool comprises a fixed frame, a rotating frame and a fixed assembly; the rotating frame is rotatably connected to the fixed frame; the fixing component comprises a fixing disc and a plurality of sliding blocks arranged on the fixing disc, the fixing disc is rotatably connected onto the rotating frame, the fixing disc is used for fixing the end socket body, the sliding blocks are slidably connected onto the fixing disc, the sliding blocks are abutted to the reinforcing plate, and the reinforcing plate is limited between the end socket body and the sliding blocks.

In some embodiments, the fixed disk is equipped with the chuck in the one side epirelief that faces away from the swivel mount, the chuck stretches into the head body, just the periphery wall of chuck with the internal perisporium looks butt of head subassembly to with the head body spacing in on the chuck, the chuck is located a plurality of the within range that closes of slider.

In some embodiments, the fixed disk is provided with a plurality of limiting grooves, the limiting grooves extend along straight lines, the limiting grooves are arranged around the rotation axis of the fixed disk, the limiting grooves are arranged at intervals, and the sliding block is slidably connected with the limiting grooves.

In some embodiments, the retaining groove extends in a radial direction of the fixed disk.

In some embodiments, a limiting hole is formed in one side of the sliding block, which faces away from the rotating frame, a fastening piece is arranged in the limiting hole, and one side of the fastening piece penetrates through the limiting hole and the limiting groove and is fixed at the lower end of the fixed disc.

In some embodiments, the limiting hole is a countersunk hole, and the upper end of the fastening member is embedded in the countersunk hole.

In some embodiments, the upper surface of the slider is a downwardly inclined arc or slope in a direction inward from the outside of the fixed disk.

In some embodiments, a first flange is fixedly arranged on one side of the rotating frame facing the fixed frame, a first bearing is arranged between the fixed frame and the rotating frame, and two ends of the first bearing are respectively connected with the fixed frame and the first flange.

In some embodiments, a second flange is fixedly arranged on one side of the fixed assembly facing the rotating frame, a second bearing is arranged between the rotating frame and the fixed assembly, and two ends of the second bearing are respectively connected with the rotating frame and the second flange.

In some embodiments, a first driving mechanism is disposed on the fixed frame, and a second driving mechanism is disposed on the rotating frame, the first driving mechanism is connected to the outer periphery of the first flange, and the second driving mechanism is connected to the outer periphery of the second flange.

According to the technical scheme, the utility model has at least the following advantages and positive effects:

according to the utility model, the fixed disc of the welding tool is used for fixing the reinforcing plate, and the sliding block is abutted against the outer side cambered surface of the reinforcing plate so as to support and limit the reinforcing plate on the fixing component; after the reinforcing plate is limited by the sliding block, the fixed disc is clamped with the end socket body to fix the end socket body; after the end socket body is fixed, the sliding block is slid, so that the inner arc surface of the reinforcing plate is abutted against the end socket body, and the end socket body and the reinforcing plate are limited on the fixing component through the fixing disc and the sliding block; after the spacing head subassembly of fixed subassembly, fixed subassembly drives the head subassembly and rotates around the rotation axis of fixed subassembly, and the swivel mount drives fixed subassembly and rotates around the rotation axis of its swivel mount to make the head subassembly can carry out level and vertical multi-angle rotating, in order to reduce processes such as clamping, dismantlement, improve production efficiency, and make not unidimensional head subassembly can disposable clamping and weld forming, improved welding quality.

Drawings

Fig. 1 is a schematic structural view of a head assembly.

Fig. 2 is an exploded view of the head assembly.

Fig. 3 is a schematic structural diagram of an embodiment of a welding tool for the head assembly of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is an exploded structural schematic view of a welding tool of the embodiment of the welding tool of the head assembly of the utility model.

Fig. 6 is a cross-sectional view of a stationary disk of an embodiment of a welding tool of the head assembly of the present invention.

Fig. 7 is a top view of a mounting plate of an embodiment of the welding tool of the head assembly of the present invention.

Fig. 8 is a cross-sectional view of a slider of an embodiment of a welding tool of the head assembly of the present invention.

The reference numerals are explained below: 100. a fixed mount; 110. a first bearing; 120. a first drive mechanism; 200. a rotating frame; 210. a first flange; 220. a second bearing; 230. a rib plate; 240. a second drive mechanism; 300. a fixing assembly; 310. a second flange; 320. fixing the disc; 321. a chuck; 322. a limiting groove; 330. a slider; 331. an abutting surface; 332. a limiting hole; 335. a fastener; 400. a head assembly; 410. a seal head body; 411. a step; 420. a reinforcing plate.

Detailed Description

Exemplary embodiments that embody features and advantages of the utility model are described in detail below in the specification. It is to be understood that the utility model is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the utility model and the description and drawings are to be regarded as illustrative in nature and not as restrictive.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

With the development of infrastructure, the demand for concrete is increasing, and in order to prevent the concrete from solidifying before transportation and use, the concrete needs to be stirred, and the seal head assembly is a main bearing part in the concrete stirring process and is positioned at one end of the stirring tank so that the stirring tank rotates around the rotation axis of the seal head assembly. However, in the welding process of the existing end socket assemblies with different sizes, firstly, a fixed assembly matched with the size of the end socket assembly needs to be found, and after the matched fixed assembly is found, the fixed assembly needs to be clamped for many times to realize welding at different angles, so that the welding quality is poor, the deviation of the rotation axis of the end socket assembly easily occurs, the whole stirring tank can vibrate when rotating, the service life of the stirring tank is rapidly reduced, the accidental dangers of breakage, toppling and the like easily occur, and the life health of a human body is harmed.

Fig. 1 is a schematic structural view of a head assembly. Fig. 2 is an exploded view of the head assembly.

Referring to fig. 1 and 2, in the present invention, the sealing head assembly 400 includes a sealing head body 410 fixedly connected to the welding tool, and a reinforcing plate 420 disposed and limited on the sealing head body 410. A through hole is formed in the seal head body 410, and the seal head body 410 is fixed with the welding tool through the through hole.

The circumferential surface of one end of the head body 410 is inwards provided with a step 411, and the step 411 is used for limiting the reinforcing plate 420. The reinforcing plate 420 extends outward along the radial direction of the head body 410, so that the reinforcing plate 420 extends to form an arc-shaped structure, the inner periphery of the reinforcing plate 420 abuts against the peripheral side of the step 411, and the inner arc of the reinforcing plate 420 facing the head body 410 abuts against the side surface of the step 411, so that the reinforcing plate 420 is limited.

Fig. 3 is a schematic structural diagram of an embodiment of a welding tool for the head assembly of the present invention. Fig. 4 is a top view of fig. 3.

Referring to fig. 3, the position of the fixing element 300 relative to the rotating frame 200 is described as the upper part, and the position of the rotating frame 200 relative to the fixing element 300 is described as the lower part.

Referring to fig. 3 and 4, in the present invention, the welding tool includes a fixing frame 100, a rotating frame 200 rotatably disposed on an outer circumference of the fixing frame 100, and a fixing member 300 rotatably disposed on a circumferential side of the rotating frame 200 and used for limiting the sealing head assembly 400.

In some embodiments, the rotational axis of the rotating gantry 200 is flush with the horizontal and the rotational axis of the stationary assembly 300 is perpendicular to the rotational axis of the rotating gantry 200. In other embodiments, the axis of rotation of the turret 200 may be at any angle to the horizontal, and the axis of rotation of the stationary assembly 300 may be at any angle to the axis of rotation of the turret 200.

Fig. 5 is an exploded structural schematic view of a welding tool of the embodiment of the welding tool of the head assembly of the utility model.

Referring to fig. 5, in the present embodiment, a first driving mechanism 120 is disposed in the fixing frame 100, and the first driving mechanism 120 is connected to the rotating frame 200 to provide a force to the rotating frame 200 so that the rotating frame 200 can rotate around its rotation axis.

A first bearing 110 is arranged between the fixed frame 100 and the rotating frame 200, one end of the first bearing 110 is connected with the fixed frame 100, the other end is connected with the rotating frame 200, and the axis of the first bearing 110 is flush with the horizontal plane.

In the present embodiment, the rotation axis of the rotating frame 200 is horizontally disposed; the rotating frame 200 includes a first flange 210 disposed on a side of the rotating frame 200 facing the stationary frame 100, and a second bearing 220 disposed between the rotating frame 200 and the stationary assembly 300.

One end of the first flange 210 is fixedly connected to a side surface of the rotating frame 200 facing the fixed frame 100, the other end of the first flange 210 is connected to the first bearing 110, the outer peripheral surface of the first flange 210 is a rack, and the first flange 210 is engaged with the first driving mechanism 120, so that the first driving mechanism 120 provides a force to the rotating frame 200 through the first flange 210, so that the rotating frame 200 is rotatably disposed on the peripheral side of the fixed frame 100 around its rotation axis. In some embodiments, the first flange 210 is sleeved on the first bearing 110. In some embodiments, the fixed frame 100 is a fixed column, and the rotation axis of the rotating frame 200 is perpendicular to the axis of the fixed column.

One end of the second bearing 220 is fixed on the peripheral side of the rotating frame 200, and the other end of the second bearing 220 is connected with the fixing assembly 300, so that the fixing assembly 300 is rotatably disposed on the peripheral side of the rotating frame 200.

The rotating frame 200 is further provided with a second driving mechanism 240, and the second driving mechanism 240 is used for being connected with the fixed component 300 and providing a force for rotating the fixed component 300 around its rotation axis.

In some embodiments, the rotating frame 200 is further provided with a rib 230, the rib 230 is used for improving the structural stability of the rotating frame 200 itself, one end of the rib 230 is connected to the bottom wall of the rotating frame 200 facing the fixed frame 100, the other end is connected to the peripheral side wall of the rotating frame 200, and the rib 230 is spaced from the fixed assembly 300. In other embodiments, the rib 230 is connected to the peripheral wall of the rotating frame 200 at one end thereof, penetrates through the peripheral wall of the rotating frame 200, extends into the interior of the rotating frame 200, and is connected to the bottom wall of the rotating frame, so as to enhance the structural stability of the rotating frame 200 and prevent the rotating frame 200 from being bent and damaged during the welding process.

Fig. 6 is a cross-sectional view of a stationary disk of an embodiment of a welding tool of the head assembly of the present invention. Fig. 7 is a top view of a mounting plate of an embodiment of the welding tool of the head assembly of the present invention.

Referring to fig. 5, 6 and 7, the fixing assembly 300 is rotatably disposed on the peripheral side of the rotating frame 200, and the fixing assembly 300 includes a second flange 310 connected to the rotating frame 200, a fixing plate 320 connected to the second flange 310 and used for fixing the head body 410, and a slider 330 disposed on the fixing plate 320 and supporting the reinforcing plate 420.

One end of the second flange 310 is connected to one side surface of the fixed disk 320 facing the rotating frame 200, such that the rotation axis of the second flange 310 is coaxial with the rotation axis of the fixed disk 320, the other end of the second flange 310 is sleeved on the second bearing 220, such that the fixing assembly 300 is rotatably disposed on the peripheral side of the fixed frame 200 through the second flange 310 and the second bearing 220, and the rotation axis of the fixed disk 320 is perpendicular to the rotation axis of the rotating frame 200.

In some embodiments, the outer periphery of the second flange 310 is a rack, the second driving mechanism 240 is engaged with the outer periphery of the second flange 310, and the second driving mechanism 240 provides a force to the second flange 310, so that the second flange 310 rotates the fixing assembly 300 around its rotation axis.

The fixed disk 320 is arranged on the second flange 310 and is used for fixing the seal head body 410 and the bearing slider 330; a chuck 321 is convexly arranged on one side surface of the fixed disc 320, which is opposite to the rotating frame 200, the chuck 321 extends into the through hole of the end socket body 410, so that the peripheral side surface of the chuck 321 is abutted against the inner peripheral surface of the through hole of the end socket body 410, and the end socket body 410 is limited in the horizontal direction; the chuck 321 is located within the enclosed area of the plurality of sliders 330.

In some embodiments, locking members (not shown) such as bolts, pins, and locking blocks are disposed on the chucks 321, so that the chucks 321 horizontally limit the end socket body 410 and then fix the end socket body 410 in the vertical direction.

In some embodiments, the mounting plate 320 is circular when viewed from above. In other embodiments, the mounting plate 320 has a polygonal or star-shaped configuration when viewed from above.

In this embodiment, the fixed disk 320 is provided with a plurality of limiting grooves 322, the limiting grooves 322 are disposed on the fixed disk 320 around the rotation axis of the fixed disk 320, and the limiting grooves 322 are used for connecting the sliding block 330, so that the sliding block 330 can be slidably disposed on the fixed disk 320.

In this embodiment, the position-limiting groove 322 is a long and narrow structure, and the extending direction of the position-limiting groove 322 faces the rotation axis of the fixed disk 320, so that the sliding block 330 moves in the radial direction of the fixed disk 320. In some embodiments, the retaining groove 322 extends along a straight line to form a rectangle. In other embodiments, the position-limiting groove 322 is disposed in the radial direction of the fixed disk 320, such that the length direction of the position-limiting groove 322 faces the radial direction of the fixed disk 320.

In the present embodiment, the limiting groove 322 is a through hole. In some embodiments, the retaining groove 322 is a counterbore. In other embodiments, the line connecting the limiting grooves 322 is a regular polygon.

Fig. 8 is a cross-sectional view of a slider of an embodiment of a welding tool of the head assembly of the present invention.

Referring to fig. 5, 6, 7 and 8, in the present embodiment, the sliding block 330 is slidably disposed on a side of the fixed tray 320 opposite to the rotating frame 200, and the sliding block 330 is disposed on the fixed tray 320 around the rotation axis of the fixed tray 320. One side surface of the sliding block 330 facing away from the fixed disk 320 is an abutting surface 331, and the abutting surface 331 is used for abutting against the arc surface of the reinforcing plate 420 to support the reinforcing plate 420.

In some embodiments, the abutting surface 331 of the sliding block 330 is a downward arc or slope from the outer side of the fixed disk 320 to the inner side, so as to increase the abutting area and more firmly limit the sealing head assembly 400.

In some embodiments, the sliding block 330 is slidably disposed in the limiting groove 322 of the fixed disk 320, the abutting surface 331 of the sliding block 330 is formed with a limiting hole 332, a fastening member 335 is disposed in the limiting hole 332, one end of the fastening member 335 is fixedly connected to the limiting hole 332, and the other end of the fastening member 335 is fixed in the limiting groove 322, so that the sliding block 330 slides on the limiting groove 322 through the fastening member 335.

In other embodiments, one side of the fastening member 335 passes through the limiting hole 332 and the limiting groove 322 and abuts against one side of the fixing plate 320 facing the rotating frame 200.

In some embodiments, the limiting hole 332 is a countersunk hole, and the upper end of the fastening member 335 is embedded in the countersunk hole, so that the sliding block 330 is tightly connected to the limiting groove 322 through the matching of the countersunk hole and the fastening member 335, so as to enhance the structural stability of the fixing assembly 300.

In this embodiment, the fastener 335 may be a bolt, an "I" profile, or the like.

In this embodiment, because the head assembly 400 on the world is different, in welding process, can pass through slider 330 with spacing not head assembly 400 of unidimensional to enlarge the application scope of welding frock, reduce manufacturing cost.

In one embodiment, the inner arc surface of the reinforcing plate 420 of the head assembly 400 directly abuts against a side surface of the head body 410 facing the fixing assembly 300, the chuck 321 extends into the head body 410 and the reinforcing plate 420, and the inner circumferential surface of the head body 410 and the inner circumferential surface of the reinforcing plate 420 both abut against the outer circumferential surface of the chuck 321.

In the utility model, when the head assembly 400 is to be welded, the reinforcing plate 420 is firstly placed on the fixing assembly 300, the arc surface of the reinforcing plate 420 abuts against the abutting surface 331 of the slider 330, after the reinforcing plate 420 is placed, the head body 410 is placed on the reinforcing plate 420, the inner peripheral wall of the through hole of the head body 410 abuts against the outer peripheral wall of the chuck 321, the head body 410 is horizontally limited and fixed, and then the head body is limited in the vertical direction by the locking piece. At this time, the outer peripheral wall of the step 411 contacts the inner peripheral wall of the reinforcing plate 420, but the inner curved surface of the reinforcing plate 420 does not contact a side surface of the step 411 facing the fixed disk 320 due to gravity.

At this time, the sliding block 330 is moved along the limiting groove 322, so that the reinforcing plate 420 moves back to the fixed tray 320 along the rotation axis of the fixed body 410, and when the inner arc surface of the reinforcing plate 420 abuts against one side surface of the step 411 facing the fixed tray 320 in the moving process, the limiting fastener 335 enables the sliding block 330 to support the reinforcing plate 420, so as to support the reinforcing plate 420 to abut against one side surface of the step 411 facing the fixed tray 320. When the size of head subassembly 400 is different, also can carry on spacingly through slider 330 to make this welding frock can use in the head subassembly 400 of various sizes, very big reduction manufacturing cost.

After the head body 410 and the reinforcing plate 420 are limited and fixed, the fixing assembly 300 can rotate horizontally 360 degrees around the rotation axis thereof under the driving of the second driving mechanism 240, so as to drive the head assembly 400 to rotate horizontally 360 degrees, and increase the welding range of the head assembly 400; under the driving of the first driving mechanism 120, the rotating frame 200 can rotate vertically 360 degrees around the rotation axis of the rotating frame, so that the fixing assembly 300 drives the end socket assembly 400 to rotate around the rotation axis of the rotating frame 200; therefore, the head assembly 400 is clamped behind the welding tool and can rotate horizontally by 360 degrees and vertically by 360 degrees so as to meet the requirements of multi-angle welding, reduce the procedures of clamping, dismounting and the like, improve the production efficiency, and improve the welding quality because the welding is formed by one-time welding.

In the utility model, the reinforcing plate 420 is supported on the fixed disk 320 and the sliding block 330, the through hole of the end socket body 310 is clamped and fixed on the fixed disk 320, and the sliding block 330 is matched with the fixed disk 320 to limit the end socket body 310 and the reinforcing plate 320 on the fixed disk 320; after the head assembly 400 is fixed, the rotation axis of the fixing assembly 300 is followed to perform horizontal rotation, the fixing assembly 300 follows the rotating frame 200 to perform vertical rotation around the axis of the fixing assembly, so that the head assembly 400 can perform horizontal and vertical multi-angle rotation, multi-angle welding of the head assembly 400 is met, processes such as clamping and dismounting are reduced, production efficiency is improved, the head assembly 400 can be formed by one-time welding, and welding quality is improved.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A welding tool for a seal head assembly comprises a seal head body and a reinforcing plate sleeved on the periphery of the seal head body; the reinforcing plate is followed the radial outside extension of head body, its characterized in that includes:

a fixed mount;

the rotating frame is rotatably connected to the fixed frame;

the fixing assembly comprises a fixing disc and a plurality of sliding blocks arranged on the fixing disc; the fixed disc is rotatably connected to the rotating frame and is used for fixing the seal head body; the slider slidable connects on the fixed disk, the slider butt in the reinforcing plate, will the reinforcing plate is spacing in the head body with between the slider.

2. The welding frock of claim 1, wherein the fixed disk is equipped with the chuck in the one side epirelief that faces away from the swivel mount, the chuck stretches into the head body, just the periphery wall of chuck with the internal perisporium looks butt of head subassembly to with the head body spacing in on the chuck, the chuck is located a plurality of the enclosure within range of slider.

3. The welding tool according to claim 2, wherein the fixed disk is provided with a plurality of limiting grooves, the limiting grooves extend along a straight line, the limiting grooves are arranged around a rotation axis of the fixed disk, the limiting grooves are arranged at intervals, and the sliding block is slidably connected to the limiting grooves.

4. The welding tool of claim 3, wherein the limiting groove extends in a radial direction of the fixed disk.

5. The welding tool according to claim 4, wherein a limiting hole is formed in one side, opposite to the rotating frame, of the sliding block, a fastening piece is arranged in the limiting hole, and one side of the fastening piece penetrates through the limiting hole and the limiting groove and is fixed to the lower end of the fixed disc.

6. The welding tool of claim 5, wherein the limiting hole is a countersunk hole, and the upper end of the fastener is embedded in the countersunk hole.

7. The welding tool according to claim 6, wherein one side surface of the sliding block, which faces away from the fixed disk, is an abutting surface, and the abutting surface is an arc surface or an inclined surface which is inclined downwards from the outer side of the fixed disk to the inner side.

8. The welding tool according to claim 1, wherein a first flange is fixedly arranged on one side of the rotating frame facing the fixed frame, a first bearing is arranged between the fixed frame and the rotating frame, and two ends of the first bearing are respectively connected with the fixed frame and the first flange.

9. The welding tool according to claim 8, wherein a second flange is fixedly arranged on one side, facing the rotating frame, of the fixing assembly, a second bearing is arranged between the rotating frame and the fixing assembly, and two ends of the second bearing are respectively connected with the rotating frame and the second flange.

10. The welding tool of claim 9, wherein a first driving mechanism is disposed on the fixed frame, a second driving mechanism is disposed on the rotating frame, the first driving mechanism is connected to an outer periphery of the first flange, and the second driving mechanism is connected to an outer periphery of the second flange.

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