Welding equipment for lining stainless steel tee joint

Abstract

The utility model discloses lining stainless steel tee joint welding equipment which comprises a main body supporting mechanism, a welding restraining mechanism arranged at the top of the main body supporting mechanism and a rotary welding mechanism connected to the inner side of the main body supporting mechanism. The main body supporting mechanism comprises a main body supporting ring, and the top end of the main body supporting ring is slidably connected with three main body supporting sliding blocks; the welding restraining mechanism comprises a welding restraining supporting shell, and a welding fixing restraining ring is fixed to the welding restraining supporting shell. The rotary welding mechanism comprises a rotary welding supporting ring, the side face of the rotary welding supporting ring is rotationally connected with a welding gun connecting ring, and a welding gun is fixed to the welding gun connecting ring. The three main body supporting sliding blocks are driven by independent servo motors to move in the circumferential direction of the main body supporting ring, and three-way pipe parts of various angle specifications can be clamped and fixed in a matched mode. The welding constraint driving mechanism is used for driving the welding constraint clamping blocks to clamp and fix the three-way pipe parts, and the three-way pipe parts with various pipe diameter specifications can be clamped in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of tee pipe welding, in particular to a tee welding device with a stainless steel lining. Background Art

[0002] It consists of a carbon steel exterior and a stainless steel interior lining. The carbon steel exterior provides strength and rigidity, capable of withstanding pressure and external forces. The stainless steel interior lining offers corrosion resistance, high temperature resistance, and abrasion resistance, ensuring the purity of the fluid within the pipeline and extending its service life.

[0003] In the piping system, the lined stainless steel tee is mainly used to change the flow direction of the fluid, dividing one fluid into two or combining two fluids into one. It is connected to pipes in different directions through three ports to achieve fluid diversion or merging.

[0004] During the manufacturing process of the current lined stainless steel tee, the welding fixed mold is not convenient to adjust according to the actual product, the welding efficiency is low, and the welding accuracy needs to be further improved. Utility Model Content

[0005] The purpose of the utility model is to provide a stainless steel lined tee welding device that can be adapted to perform precise welding on tee pipes of various specifications.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A lined stainless steel tee welding device comprises a main body support mechanism, a welding restraint mechanism arranged on the top of the main body support mechanism, and a rotary welding mechanism connected to the inner side of the main body support mechanism;

[0008] The main body support mechanism includes a horizontally placed main body support ring, the top of which is slidably connected to three main body support sliders, which are driven by a servo motor to move along the circumference of the main body support ring;

[0009] A plurality of vertically extending fixed support legs are fixed to the lower end of the main support ring;

[0010] The welding constraint mechanism includes a welding constraint support shell connected to the top of the main body support slider and extending radially along the main body support ring. A welding fixed constraint ring is fixed to one end of the welding constraint support shell close to the center of the main body support ring. The side surface of the welding fixed constraint ring has a plurality of card block constraint grooves extending radially therethrough, and a welding constraint card block is slidably connected in the card block constraint groove.

[0011] The rotary welding mechanism includes a rotary welding support ring fixedly connected to the inner side of the main support ring through a welding fixing frame. The axis of the rotary welding support ring is arranged along the radial extension of the main support ring. The side of the rotary welding support ring is rotatably connected to a welding gun connecting ring coaxial with it, and a welding gun is fixed on the welding gun connecting ring.

[0012] Preferably, the welding constraint support shell is connected to the top of the main body support slider through a radial sliding mechanism, the radial sliding mechanism includes a sliding mechanism support block fixedly connected to the top of the main body support slider, the welding constraint support shell is a hollow shell with an opening facing downward, the welding constraint support shell is connected to the sliding mechanism support block in a sliding fit, and the sliding direction of the welding constraint support shell is along the radial direction of the main body support ring;

[0013] The sliding mechanism support block has a screw mating hole that passes through the main body support ring in the radial direction. The screw mating hole is threadedly connected to a sliding drive screw. A sliding drive accommodating shell is fixed to the end of the welded constraint support shell. The sliding drive screw extends to the inside of the sliding drive accommodating shell. A sliding drive motor for driving the sliding drive screw to rotate is fixed in the sliding drive accommodating shell.

[0014] Description: The radial sliding mechanism is used to drive the tee pipe parts closer to each other, so that the tee pipe parts are in the correct assembly and welding position, and can adapt to tee pipe parts of various lengths and specifications.

[0015] Preferably, a welding constraint driving mechanism for driving the welding constraint block is provided on the outside of the welding fixed constraint ring. The welding constraint driving mechanism includes a block driving ring rotatably connected to the outside of the welding fixed constraint ring. The end face of the block driving ring has multiple constraint driving arc grooves. A constraint driving matching column is fixed on the side of the welding constraint block. The multiple constraint driving matching columns are slidably connected in each constraint driving arc groove one by one. The block driving ring is driven by a servo motor to rotate around the axis of the welding fixed constraint ring.

[0016] Description: The welding constraint driving mechanism is used to drive each welding constraint clamp to clamp and fix the tee pipe parts, which can be adapted to clamp tee pipe parts of various pipe diameters.

[0017] Preferably, the welding gun connecting ring is connected to the rotary welding support ring through a rotary constraint mechanism, the rotary constraint mechanism includes a plurality of rotary constraint rollers rotatably connected to the side of the rotary welding support ring, the rotating axes of the rotary constraint rollers are parallel to the axis of the rotary welding support ring, the outer sides of the rotary constraint rollers are provided with limit constraint ring grooves, the outer side of the welding gun connecting ring is provided with a limit constraint matching ring, and the limit constraint matching rings are jointly rollingly constrained between the plurality of limit constraint ring grooves;

[0018] A coaxial rotary drive ring is fixed to the outside of the welding gun connecting ring, multiple rotary drive motors are fixed on the rotary welding support ring, and a rotary drive gear is fixed to the output end of the rotary drive motor. The multiple rotary drive gears are meshed and connected with the rotary drive ring.

[0019] Description: The rotation constraint mechanism can constrain the welding gun connecting ring and the rotary welding support ring to always be in a coaxial state, and facilitates driving the welding gun connecting ring together with the welding gun to rotate 360° to achieve welding work.

[0020] Preferably, the welding gun is connected to the welding gun connecting ring through a track adapter mechanism, the track adapter mechanism includes a track adapter support cylinder fixed on the welding gun connecting ring and extending parallel to the axis of the welding gun connecting ring, a track adapter sliding cylinder is slidably connected to the outer side of the track adapter support cylinder, and a track adapter driving rod for driving the track adapter sliding cylinder to move is provided in the track adapter support cylinder;

[0021] The welding gun is fixedly connected to the outside of the track adapter sliding cylinder.

[0022] Note: During the rotation welding process, the track adapter mechanism can drive the welding gun to move adaptively, so that the distance between the welding gun tip and the weld seam always remains accurate.

[0023] Preferably, the rotary welding support ring is connected to the welding fixing frame via a lifting mechanism, the lifting mechanism comprising a lifting mechanism fixing shell fixed on the welding fixing frame and with an opening facing upward, a lifting sliding support shell moving in a vertical direction being slidably connected in the lifting mechanism fixing shell, and a lifting drive rod for driving the lifting sliding support shell to move is provided in the lifting mechanism fixing shell;

[0024] The welding fixing frame is fixedly connected to the top of the lifting and sliding support shell.

[0025] Description: The lifting mechanism drives the welding fixture, rotary welding support ring, welding gun connecting ring and welding gun to move up and down together, so that the tee pipe to be welded is placed inside the rotary welding support ring or separated from the inside of the rotary welding support ring.

[0026] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0027] 1. The structure of this utility model is reasonably designed. The three main support sliders are driven by independent servo motors to move along the circumference of the main support ring, which can adapt to clamping and fixing tee pipe parts of various angles and specifications;

[0028] 2. The utility model utilizes a welding constraint driving mechanism to drive each welding constraint clamp to clamp and fix the tee pipe parts, and can be adapted to clamp tee pipe parts of various pipe diameters;

[0029] 3. The utility model utilizes a radial sliding mechanism to drive the tee pipe parts closer to each other, so that the tee pipe parts are in the correct assembly and welding position, and can adapt to tee pipe parts of various lengths and specifications;

[0030] 4. The utility model utilizes a rotary welding mechanism to continuously weld the weld of the tee pipe in a 360° rotation at one time, thus avoiding the instability of the welding quality caused by the interruption of the weld in the middle;

[0031] 3. During the rotary welding process, the track adaption mechanism of the welding gun of the present invention can drive the welding gun to move adaptively, so that the distance between the welding gun tip and the weld seam always remains accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is the main view of the utility model;

[0033] Figure 2 yes Figure 1 A top view of

[0034] Figure 3 This is a structural diagram of the welding constraint drive mechanism of the utility model;

[0035] Figure 4 yes Figure 3 Right view;

[0036] Figure 5 This is a structural diagram of the rotary welding mechanism of the utility model;

[0037] Figure 6 yes Figure 5 Left view of .

[0038] In the figure, 10-main body support mechanism, 11-main body support ring, 111-fixed support leg, 12-main body support slider, 20-welding constraint mechanism, 21-welding constraint support shell, 22-welding fixed constraint ring, 221-block constraint groove, 220-welding constraint block, 23-radial sliding mechanism, 231-sliding mechanism support block, 2311-screw matching hole, 232-sliding drive screw, 233-sliding drive accommodating shell, 234-sliding drive motor, 24-welding constraint drive mechanism, 241-block drive ring, 242-constraint drive arc groove, 243-constraint drive matching column, 30-rotating welding mechanism, 301 -Welding fixing frame, 31-rotating welding support ring, 310-first through-notch, 32-welding gun connecting ring, 320-second through-notch, 33-welding gun, 34-rotation constraint mechanism, 341-rotation constraint roller, 3411-limit constraint ring groove, 342-limit constraint matching ring, 343-rotation drive ring gear, 344-rotation drive motor, 345-rotation drive gear, 35-track adaptation mechanism, 351-track adaptation support cylinder, 352-track adaptation sliding cylinder, 353-track adaptation drive rod, 36-lifting mechanism, 361-lifting mechanism fixed shell, 362-lifting sliding support shell, 363-lifting drive rod. DETAILED DESCRIPTION

[0039] The following combination Figures 1-6 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are consistent with the up, down, left, right, front and back directions of the projection relationship of each main view or structural schematic diagram itself.

[0040] Example 1:

[0041] A stainless steel lined tee welding device, such as Figure 1 As shown, it includes a main body support mechanism 10, a welding constraint mechanism 20 provided on the top of the main body support mechanism 10, and a rotary welding mechanism 30 connected to the inner side of the main body support mechanism 10;

[0042] The main body support mechanism 10 includes a horizontally placed main body support ring 11, and three main body support sliders 12 are slidably connected to the top of the main body support ring 11. The main body support sliders 12 are driven by a servo motor in the prior art to move along the circumference of the main body support ring 11;

[0043] A plurality of vertically extending fixed support legs 111 are fixed to the lower end of the main support ring 11;

[0044] The welding constraint mechanism 20 includes a welding constraint support shell 21 connected to the top of the main support slider 12 and extending radially along the main support ring 11. A welding fixed constraint ring 22 is fixed to one end of the welding constraint support shell 21 close to the center of the main support ring 11. Figure 3 As shown, the side surface of the welding fixed constraint ring 22 has a plurality of block constraint grooves 221 extending radially therethrough, and the welding constraint blocks 220 are slidably connected in the block constraint grooves 221;

[0045] The rotary welding mechanism 30 includes a rotary welding support ring 31 fixedly connected to the inner side of the main body support ring 11 through a welding fixture 301. Figure 5 As shown, the axis of the rotary welding support ring 31 extends radially along the main support ring 11 , and the rotary welding support ring 31 is rotatably connected to a coaxial welding gun connecting ring 32 , on which a welding gun 33 is fixed.

[0046] like Figure 6 As shown, the rotary welding support ring 31 has a first through-notch 310;

[0047] like Figure 6 As shown, the welding gun connecting ring 32 has a second through-notch 320 .

[0048] like Figure 1 As shown, the welding constraint support shell 21 is connected to the top of the main body support slider 12 through a radial sliding mechanism 23. The radial sliding mechanism 23 includes a sliding mechanism support block 231 fixedly connected to the top of the main body support slider 12. The welding constraint support shell 21 is a hollow shell with an opening facing downward. The welding constraint support shell 21 is slidably connected to the sliding mechanism support block 231, and the sliding direction of the welding constraint support shell 21 is along the radial direction of the main body support ring 11.

[0049] The sliding mechanism support block 231 has a screw mating hole 2311 that passes through the main support ring 11 in the radial direction. The screw mating hole 2311 is threadedly connected to a sliding drive screw 232. A sliding drive accommodating shell 233 is fixed to the end of the welding constraint support shell 21. The sliding drive screw 232 extends to the interior of the sliding drive accommodating shell 233. A sliding drive motor 234 is fixed in the sliding drive accommodating shell 233 for driving the sliding drive screw 232 to rotate.

[0050] like Figure 3 、 Figure 4 As shown, a welding constraint driving mechanism 24 for driving the welding constraint block 220 is provided on the outside of the welding fixed constraint ring 22. The welding constraint driving mechanism 24 includes a block driving ring 241 rotatably connected to the outside of the welding fixed constraint ring 22. The end face of the block driving ring 241 has multiple constraint driving arc grooves 242. A constraint driving matching column 243 is fixed on the side of the welding constraint block 220. The multiple constraint driving matching columns 243 are slidably connected in each constraint driving arc groove 242 one by one. The block driving ring 241 is driven by a servo motor to rotate around the axis of the welding fixed constraint ring 22.

[0051] like Figure 5 、 Figure 6 As shown, the welding gun connecting ring 32 is connected to the rotary welding support ring 31 through a rotary restraint mechanism 34. The rotary restraint mechanism 34 includes a plurality of rotary restraint rollers 341 rotatably connected to the side of the rotary welding support ring 31. The rotation axis of the rotary restraint rollers 341 is parallel to the axis of the rotary welding support ring 31. The outer side of the rotary restraint rollers 341 has a limit restraint ring groove 3411. The outer surface of the welding gun connecting ring 32 has a limit restraint mating ring 342. The limit restraint mating ring 342 is jointly restrained in rolling between the plurality of limit restraint ring grooves 3411.

[0052] A coaxial rotary drive ring gear 343 is fixed to the outside of the welding gun connecting ring 32, and multiple rotary drive motors 344 are fixed on the rotary welding support ring 31. The rotary drive motor 344 is a servo motor in the prior art. A rotary drive gear 345 is fixed to the output end of the rotary drive motor 344, and the multiple rotary drive gears 345 are engaged with the rotary drive ring gear 343.

[0053] like Figure 5 As shown, the welding gun 33 is connected to the welding gun connecting ring 32 through a track adapter mechanism 35. The track adapter mechanism 35 includes a track adapter support cylinder 351 fixed on the welding gun connecting ring 32 and extending parallel to the axis of the welding gun connecting ring 32. A track adapter sliding cylinder 352 is slidably connected to the outer side of the track adapter support cylinder 351. A track adapter driving rod 353 for driving the track adapter sliding cylinder 352 to move is provided in the track adapter support cylinder 351.

[0054] The welding gun 33 is fixedly connected to the outside of the track-adapting sliding cylinder 352;

[0055] The track adapter drive rod 353 is an electrically controlled telescopic rod driven by a servo motor in the prior art. The outer rod end of the track adapter drive rod 353 is fixedly connected to the track adapter support tube 351, and the inner rod end of the track adapter drive rod 353 is fixedly connected to the track adapter sliding tube 352.

[0056] like Figure 1 As shown, the rotary welding support ring 31 is connected to the welding fixed frame 301 through a lifting mechanism 36. The lifting mechanism 36 includes a lifting mechanism fixed shell 361 fixed on the welding fixed frame 301 and with an upward opening. A lifting and sliding support shell 362 that moves in the vertical direction is slidably connected in the lifting mechanism fixed shell 361. A lifting drive rod 363 for driving the lifting and sliding support shell 362 to move is provided in the lifting mechanism fixed shell 361.

[0057] The welding fixture 301 is fixedly connected to the top of the lifting and sliding support shell 362;

[0058] The lifting drive rod 363 is an electrically controlled telescopic rod driven by a servo motor in the prior art. The outer rod end of the lifting drive rod 363 is fixedly connected to the inner bottom of the lifting mechanism fixed shell 361, and the inner rod end of the lifting drive rod 363 is fixedly connected to the lifting sliding support shell 362.

[0059] In the actual application process of the present invention, the tee pipe parts to be welded are respectively clamped and fixed in each welding fixed constraint ring 22. Taking the Y-shaped tee pipe as an example, it is welded by three pipe parts assembled at an angle to each other;

[0060] The welding constraint drive mechanism 24 is used to drive each welding constraint clamp 220 to clamp and fix the tee pipe part. Specifically, the servo motor drives the clamp drive ring 241 to rotate around the axis of the welding fixed constraint ring 22. Under the mutual constraint of the constraint drive arc groove 242 and the constraint drive matching column 243, each welding constraint clamp 220 is driven to move along the radial direction of the welding fixed constraint ring 22 and approach each other. The multiple welding constraint clamps 220 jointly clamp and fix the tee pipe part.

[0061] The radial sliding mechanism 23 is used to drive the tee pipe parts closer to each other, so that the tee pipe parts are in the correct assembly welding position. The output shaft of the sliding drive motor 234 drives the sliding drive screw 232 to rotate through gear transmission. Under the threaded drive of the screw, the welding constraint support shell 21 moves along the radial direction of the main body support ring 11. The welding constraint support shell 21 drives the welding fixed constraint ring 22 and the clamped and fixed tee pipe parts closer to each other, so that the tee pipe parts are in the correct assembly position in three-dimensional space.

[0062] Finally, the tee pipe parts are welded and fixed using the rotary welding mechanism 30;

[0063] In the initial state, the first through-notch 310 and the second through-notch 320 are both in the upper position. The lifting drive rod 363 drives the lifting sliding support shell 362 to move upward together with the welding fixture 301, the rotary welding support ring 31, the welding gun connecting ring 32 and the welding gun 33, so that the tee pipe part to be welded passes through the first through-notch 310 and the second through-notch 320 and is located inside the rotary welding support ring 31. At this time, one of the pipe parts to be welded and the rotary welding support ring 31 are coaxial.

[0064] The track adaptor mechanism 35 is used to drive the welding gun 33 to move to the weld seam. The track adaptor drive rod 353 drives the track adaptor slide cylinder 352 and the welding gun 33 to move along the axis of the track adaptor support cylinder 351, so that the gun head of the welding gun 33 moves to the weld seam. After the welding gun 33 starts welding, the rotary drive motor 344 drives the welding gun connecting ring 32 to rotate around the axis of the rotary welding support ring 31 through the meshing connection between the rotary drive gear 345 and the rotary drive ring gear 343. The welding gun connecting ring 32 drives the welding gun 33 to rotate together to achieve welding of the entire weld seam. The welding gun 33 rotates 360° and returns to the initial welding position before stopping welding.

[0065] During the rotation welding process of the welding gun 33, the track adaptor driving rod 353 drives the track adaptor sliding cylinder 352 together with the welding gun 33 to adaptively move along the axis direction of the track adaptor supporting cylinder 351, so that the distance between the gun tip of the welding gun 33 and the weld seam is always kept accurate;

[0066] The Y-shaped tee pipe, which is made of three pipe parts assembled at an angle to each other, should have three circles of welds. After the first circle of welds is completed,

[0067] The lifting drive rod 363 drives the lifting sliding support shell 362, together with the welding fixing frame 301, the rotary welding support ring 31, the welding gun connecting ring 32 and the welding gun 33, to move downward, so that the tee pipe part to be welded passes through the first through-notch 310 and the second through-notch 320 and is located outside the rotary welding support ring 31;

[0068] The three main body support sliders 12 are driven by the servo motor to move synchronously along the circumferential direction of the main body support ring 11, so that the pipe part to be welded next to the tee pipe part to be welded is parallel to the axis of the rotary welding support ring 31.

[0069] Then, the lifting drive rod 363 drives the lifting sliding support shell 362 to move upward together with the welding fixture 301, the rotary welding support ring 31, the welding gun connecting ring 32 and the welding gun 33, so that the tee pipe part to be welded passes through the first through-notch 310 and the second through-notch 320 and is located inside the rotary welding support ring 31. At this time, the pipe part to be welded and the rotary welding support ring 31 are in a coaxial state.

[0070] Then, the second weld seam is welded using the welding gun 33 , and the above steps are repeated until all three weld seams are welded. The welded Y-shaped tee pipe can be removed from the welding fixing restraint ring 22 .

Claims

1. A lined stainless steel tee welding device, characterized in that, It comprises a main body support mechanism (10), a welding restraint mechanism (20) arranged on the top of the main body support mechanism (10), and a rotary welding mechanism (30) connected to the inner side of the main body support mechanism (10); The main body support mechanism (10) comprises a horizontally placed main body support ring (11), the top end of the main body support ring (11) is slidably connected to three main body support sliders (12), and the main body support sliders (12) are driven by a servo motor to move circumferentially along the main body support ring (11); A plurality of vertically extending fixed support legs (111) are fixed to the lower end of the main body support ring (11); The welding constraint mechanism (20) comprises a welding constraint support shell (21) connected to the top of the main body support slider (12) and extending radially along the main body support ring (11); a welding fixed constraint ring (22) is fixed to one end of the welding constraint support shell (21) close to the center of the main body support ring (11); a side surface of the welding fixed constraint ring (22) has a plurality of block constraint grooves (221) passing through the side surface in a radial direction; a welding constraint block (220) is slidably connected in the block constraint groove (221); The rotary welding mechanism (30) comprises a rotary welding support ring (31) fixedly connected to the inner side of the main body support ring (11) via a welding fixing frame (301), the axis of the rotary welding support ring (31) is arranged to extend radially along the main body support ring (11), the rotary welding support ring (31) is rotatably connected to a welding gun connecting ring (32) coaxial therewith on the side thereof, and a welding gun (33) is fixed on the welding gun connecting ring (32).

2. The stainless steel lined tee welding equipment according to claim 1, characterized in that: The welding constraint support shell (21) is connected to the top of the main body support slider (12) through a radial sliding mechanism (23), the radial sliding mechanism (23) includes a sliding mechanism support block (231) fixedly connected to the top of the main body support slider (12), the welding constraint support shell (21) is a hollow shell with an opening facing downward, the welding constraint support shell (21) is connected to the sliding mechanism support block (231) in a sliding fit, and the sliding direction of the welding constraint support shell (21) is along the radial direction of the main body support ring (11); The sliding mechanism support block (231) is provided with a screw fitting hole (2311) which passes through the main body support ring (11) in a radial direction. A sliding drive screw (232) is threadedly connected in the screw fitting hole (2311). A sliding drive accommodating shell (233) is fixed to the end of the welding constraint support shell (21). The sliding drive screw (232) extends into the interior of the sliding drive accommodating shell (233). A sliding drive motor (234) for driving the sliding drive screw (232) to rotate is fixed in the sliding drive accommodating shell (233).

3. The stainless steel lined tee welding equipment according to claim 1, characterized in that: A welding constraint driving mechanism (24) for driving the welding constraint block (220) is provided on the outside of the welding fixed constraint ring (22), and the welding constraint driving mechanism (24) includes a block driving ring (241) rotatably connected to the outside of the welding fixed constraint ring (22), and a plurality of constraint driving arc grooves (242) are provided on the end face of the block driving ring (241). A constraint driving matching column (243) is fixed on the side of the welding constraint block (220), and the plurality of constraint driving matching columns (243) are slidably connected in each of the constraint driving arc grooves (242) in a one-to-one correspondence. The block driving ring (241) is driven by a servo motor to rotate around the axis of the welding fixed constraint ring (22).

4. The stainless steel lined tee welding equipment according to claim 1, characterized in that: The welding gun connecting ring (32) is connected to the rotary welding support ring (31) through a rotary constraint mechanism (34), the rotary constraint mechanism (34) comprises a plurality of rotary constraint rollers (341) rotatably connected to the side of the rotary welding support ring (31), the rotary axis of the rotary constraint roller (341) is parallel to the axis of the rotary welding support ring (31), the outer side of the rotary constraint roller (341) is provided with a limit constraint ring groove (3411), the outer side of the welding gun connecting ring (32) is provided with a limit constraint matching ring (342), and the limit constraint matching ring (342) is jointly rolling and constrained between the plurality of limit constraint ring grooves (3411); A coaxial rotary drive ring gear (343) is fixed to the outside of the welding gun connecting ring (32), a plurality of rotary drive motors (344) are fixed to the rotary welding support ring (31), a rotary drive gear (345) is fixed to the output end of the rotary drive motor (344), and the plurality of rotary drive gears (345) are meshed and connected with the rotary drive ring gear (343).

5. The stainless steel lined tee welding equipment according to claim 1, characterized in that: The welding gun (33) is connected to the welding gun connecting ring (32) through a track adapting mechanism (35), the track adapting mechanism (35) comprises a track adapting support cylinder (351) fixed on the welding gun connecting ring (32) and extending parallel to the axis of the welding gun connecting ring (32), a track adapting sliding cylinder (352) is slidably connected to the outer side of the track adapting support cylinder (351), and a track adapting driving rod (353) for driving the track adapting sliding cylinder (352) to move is provided in the track adapting support cylinder (351); The welding gun (33) is fixedly connected to the outside of the track-adapting sliding cylinder (352).

6. The stainless steel lined tee welding equipment according to claim 1, characterized in that: The rotary welding support ring (31) is connected to the welding fixed frame (301) through a lifting mechanism (36), the lifting mechanism (36) includes a lifting mechanism fixed shell (361) fixed on the welding fixed frame (301) and with an opening facing upward, a lifting and sliding support shell (362) that moves in a vertical direction is slidably connected in the lifting mechanism fixed shell (361), and a lifting drive rod (363) for driving the lifting and sliding support shell (362) to move is provided in the lifting mechanism fixed shell (361); The welding fixing frame (301) is fixedly connected to the top of the lifting and sliding supporting shell (362).

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