Automatic welding device

Abstract

The invention relates to the technical field of automatic welding, and discloses an automatic welding device which comprises an equipment table, a jig table is fixed to the equipment table, a carrying base is rotatably arranged on the jig table, a second air cylinder is fixedly arranged at the bottom of the carrying base, a mounting rod is fixed to the output end of the second air cylinder, and a round hole is formed in the top of the mounting rod and connected with the lower end of a connecting rod. And telescopic rods which are symmetrically distributed are fixed to the side face of the mounting rod and sleeved with second springs, inner supporting blocks are fixedly arranged at the ends, away from the mounting rod, of the telescopic rods, the inner sides of the inner supporting blocks are connected with the second springs, and slopes are arranged below the inner supporting blocks. Round parts are arranged and conveyed through the feeding table, the parts are positioned in the middle of the feeding table till reaching the carrying seat, the parts to be welded are automatically and accurately positioned, fixedly borne and subjected to bearing and rotating control, the welding efficiency is improved, meanwhile, the welding process is stable and reliable, and the welding quality is improved by adjusting the position and angle of a welding gun. The device is suitable for different welding operations.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic welding, in particular to an automatic welding device. Background Art

[0002] Plasma arc welding refers to a fusion welding method that uses the high energy density beam of a plasma arc as a welding heat source and is widely used in product processing in various fields.

[0003] In the prior art, the name disclosed in application number: CN201620197521.5 is: a non-radial saddle-shaped welding machine, which includes a machine head that can be installed on the pipe to be welded, a welding wire reel bracket, a cross slide, a wire feeder frame, a rotary spindle arranged on the machine head, and a main unit arranged on the machine head, which has a teaching function, an automatic cover welding function, and can memorize the weld trajectory.

[0004] However, the welding machines mentioned in the prior art cannot effectively fix the parts to be welded when welding circular parts. During the annular welding of circular parts, the circular parts are prone to loosening, causing the weld to shift and affecting the welding accuracy. Therefore, it is necessary to design an automatic welding device. Summary of the Invention

[0005] The object of the present invention is to provide an automatic welding device to solve the problems in the prior art.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An automatic welding device, comprising an equipment table, on which a fixture table for carrying parts is fixed;

[0008] A carrier is rotatably provided on the jig table, and a second cylinder is fixedly provided on the bottom of the carrier. A mounting rod is fixed to the output end of the second cylinder, and a circular hole is provided on the top of the mounting rod, which is connected to the lower end of the connecting rod. A symmetrically distributed telescopic rod is fixed to the side of the mounting rod, and a second spring is mounted on the telescopic rod. An inner support block is fixed to the end of the telescopic rod away from the mounting rod, and the inner side of the inner support block is connected to the second spring. An inclined surface is provided below the inner support block.

[0009] Furthermore, a feeding table is fixed on one side of the equipment table, and a mounting frame is fixed on the other side. The jig table is between the feeding table and the mounting frame. A motor base is fixed under the equipment table, and motor 1 is fixed under the motor base. A gear is fixed at the output end of motor 1, and the gear is located on one side of the jig table.

[0010] Furthermore, a slide module 1 is fixed on the mounting frame, a cylinder 1 is fixed on the slider of the slide module 1, a mounting seat is fixed to the output end of the cylinder 1, a limit seat is fixed below the mounting seat, a shaft is rotatably provided in the limit seat, a claw is fixed on the shaft, a torsion spring is fixed on the shaft, and the torsion spring is connected to the limit seat;

[0011] A nut is rotatably provided on the mounting seat, and a screw is slidably provided on the mounting seat. The screw is threadedly connected to the nut, a connecting rod is fixed below the screw, a slot is provided on one side of the connecting rod, the slot is connected to the claw, the claw is connected to the slot, and a material blocking rod is fixed below the connecting rod.

[0012] Furthermore, the material blocking rod is located on one side of the jig table, a protrusion is fixedly provided below the material blocking rod, a groove is provided on the jig table, the groove is connected to the protrusion, the lower end of the connecting rod passes through the limit seat, a press is rotated on the outside of the connecting rod, an outer gear ring is fixed below the carrier, the outer gear ring is located on the side of the gear, and the gear is engaged with the outer gear ring.

[0013] Furthermore, the side array of the mounting rod is provided with a guide groove, a push rod 1 is rotated on the outer side of the mounting rod, a sliding seat is rotated on the end of the push rod 1 away from the mounting rod, the guide rail is fixed to the bottom of the carrier, the sliding seat slides horizontally on the guide rail, and a push rod 2 is rotated on the sliding seat;

[0014] The push rod 2 is rotated with a side plate at one end away from the sliding seat, and an annular support block is provided in the carrier seat. The annular support block is located on the outside of the mounting rod, and the bottom of the annular support block is connected to the side plate. A limiting column is fixed on the inner wall of the annular support block, and the limiting column is slidably connected to the guide groove. A support column is slidably provided on the annular support block.

[0015] Furthermore, a spring 1 is fixed to the bottom of the support column, the bottom end of the spring 1 is connected to the support column, a support ring is fixed to the support column, symmetrically distributed protruding rods are fixed in the support ring, and the inclined surface is slidably connected to the end of the protruding rod.

[0016] Furthermore, an open groove is provided at one end of the feeding platform, the open groove is located on the outside of the carrier, a roller rotates in the open groove, horizontal grooves are provided on the inner walls on both sides of the feeding platform, round rods are slid on both sides of the feeding platform, a fixed rod is fixed at one end of the round rod, a guide rod rotates on the fixed rod, and one end of the guide rod is slidably connected to the horizontal groove.

[0017] Furthermore, a locking groove is arranged on the round rod, a spring three is fixed on one side of the round rod, the spring three is connected to the outer side of the feeding platform, a locking rod is fixed on the outer side of the feeding platform, and the locking rod is connected to the locking groove.

[0018] Furthermore, a slide module 2 is fixed to one side of the feeding table, a slide module 3 is fixed to the slider of the slide module 2, a motor plate is fixed to the slider of the slide module 3, a motor 2 is fixed to the motor plate, an adjusting seat is fixed to the output end of the motor 2, two brackets are fixed to one end of the adjusting seat, and a driving motor is fixed to the other end, a limiting shaft is fixed to the lower end of the bracket, a lead screw is fixed to the output end of the driving motor, and a moving block is threadedly connected to the lead screw.

[0019] Furthermore, a driven rod is rotatably provided below the moving block, a mounting block is provided between the two brackets, straight grooves are provided on both sides of the mounting block, the limiting shaft is rotatably connected to the mounting block, a welding gun is fixed to one end of the mounting block, and the other end is rotatably connected to the driven rod.

[0020] Beneficial effects of the present invention:

[0021] 1. The automatic welding device of the present invention arranges and transports circular parts through a feeding table, and positions the parts in the middle of the feeding table until they reach the carrier, automatically and accurately positioning them. After the circular parts are clamped and fixed, they can carry the parts to be welded, and carry and rotate them, which helps to improve welding efficiency and ensures a stable and reliable welding process.

[0022] 2. The automatic welding device of the present invention can meet the welding requirements of different positions on parts by adjusting the position and angle of the welding gun. The welding gun can perform welding operations at different angles of parts, such as circular welding operations on circular parts. The welds welded by the welding gun are uniform and the precision of the welded products is high. This device is suitable for different welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 It is a structural schematic diagram of the welding device of the present invention;

[0025] Figure 2 It is a structural schematic diagram of the equipment platform of the present invention;

[0026] Figure 3 This invention Figure 2 A in the middle is an enlarged structural diagram;

[0027] Figure 4 is a top view of the equipment platform of the present invention;

[0028] Figure 5 This invention Figure 4 Cross-sectional view along the BB direction;

[0029] Figure 6 This invention Figure 4 Schematic diagram of the cross-sectional structure in the CC direction;

[0030] Figure 7 This invention Figure 6 The enlarged structural diagram at D in the middle;

[0031] Figure 8 It is a schematic diagram of the bottom structure of the equipment platform of the present invention;

[0032] Figure 9 It is a structural schematic diagram of the feeding platform of the present invention;

[0033] Figure 10 It is a structural schematic diagram of the slide module 2 of the present invention;

[0034] Figure 11 This invention Figure 10 Enlarged structural diagram at E in the middle.

[0035] The accompanying drawings are as follows:

[0036] 1. Equipment table; 2. Fixture table; 3. Feeding table; 4. Slide module 1; 5. Slide module 2; 11. Mounting frame; 12. Motor seat; 13. Motor 1; 14. Gear; 20. Groove; 21. Cylinder 2; 22. Mounting rod; 23. Ring support block; 24. Protruding rod; 25. Telescopic rod; 26. Spring 2; 27. Inner support block; 28. Inclined surface; 29. ​​Round hole; 31. Open slot; 32. Roller; 33. Horizontal slot; 34. Guide rod; 35. Fixed rod; 36. Spring 3; 37. Round rod; 38. Locking slot; 41. Cylinder 1; 42. Mounting seat; 43. Limit seat; 44. Stop rod; 45. Protruding block; 46. Connecting rod; 47, slot; 48, screw; 49, press; 51, slide module three; 52, motor plate; 53, motor two; 54, adjustment seat; 55, bracket; 56, limit shaft; 57, mounting block; 58, straight slot; 59, driven rod; 200, carrier; 201, outer ring gear; 221, guide groove; 222, push rod one; 223, sliding seat; 224, guide rail; 225, push rod two; 226, side plate; 231, limit column; 232, support column; 233, spring one; 234, support ring; 421, nut; 431, shaft; 432, claw; 433, torsion spring; 541, screw; 542, moving block. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0038] An automatic welding device, such as Figure 1As shown, the automatic welding device is used for welding ring-shaped parts, and can be used for welding of carbon steel, low alloy steel, stainless steel, aluminum and its alloys, and can select argon arc welding, plasma welding and other welding guns for automatic welding of ring seam.

[0039] In this embodiment, the automatic welding device comprises a device table 1, a jig table 2 is fixedly installed on the device table 1, a feeding table 3 is fixedly installed on one side of the device table 1, and a mounting frame 11 is fixedly arranged on the other side. A vertical sliding table module 4 is fixedly arranged on the mounting frame 11, and the jig table 2 is arranged between the feeding table 3 and the mounting frame 11. A sliding table module 5 is fixedly arranged on one side of the feeding table 3.

[0040] As shown in Figure 2 , Figure 3 , a cylinder 41 is fixedly installed on the sliding block of the sliding table module 4, and an installation seat 42 is fixedly connected to the output end of the cylinder 41. A limiting seat 43 is fixedly arranged below the installation seat 42, a shaft rod 431 is rotatably arranged in the limiting seat 43, a clamping jaw 432 is fixedly arranged on the shaft rod 431, a torsional spring 433 is fixedly connected to the shaft rod 431, and the torsional spring 433 is fixedly connected to the limiting seat 43 to limit the shaft rod 431.

[0041] A nut 421 is rotatably arranged on the installation seat 42, and a screw rod 48 is slidably arranged on the installation seat 42. The nut 421 is rotatable on the upper surface of the installation seat 42, the rotation center is collinear with the axis of the screw rod 48, the screw rod 48 is threadedly connected with the nut 421, a connecting rod 46 is fixedly arranged below the screw rod 48, a clamping groove 47 is formed on one side of the connecting rod 46, the clamping groove 47 is connected with the clamping jaw 432 to fix the connecting rod 46, and when the clamping jaw 432 rotates away from the clamping groove 47, the nut 421 is rotated to drive the screw rod 48 connected therewith to move up and down, and the connecting rod 46 is adjusted to the required height. At this time, the clamping jaw 432 is connected with the clamping groove 47 to fix the connecting rod 46 and the screw rod 48.

[0042] A material blocking rod 44 is fixedly arranged below the connecting rod 46, the material blocking rod 44 is arranged on one side of the jig table 2, a protruding block 45 is fixedly arranged below the material blocking rod 44, a recess 20 is formed in the jig table 2 and connected with the protruding block 45, the lower end of the connecting rod 46 penetrates through the limiting seat 43, and a pressing tool 49 is rotatably connected to the outer side of the connecting rod 46. The pressing tool 49 is horizontally rotatable outside the connecting rod 46 along the axis of the connecting rod 46 and is arranged below the limiting seat 43 to press and fix the parts to be welded.

[0043] As shown in Figure 4-Figure 8As shown, a motor base 12 is fixedly installed below the equipment table 1, and a motor 13 is fixedly installed below the motor base 12. The output end of the motor 13 is fixedly connected to a gear 14. The gear 14 is located on one side of the jig table 2. A carrier 200 is rotatably provided on the jig table 2. The carrier 200 passes through the equipment table 1. An outer ring gear 201 is fixedly provided below the carrier 200. The outer ring gear 201 is located on the side of the gear 14, and the gear 14 is meshed with the outer ring gear 201. When the gear 14 rotates, the carrier 200 is driven to rotate through the meshing transmission of the gear and ring gear.

[0044] A cylinder 21 is fixedly provided at the bottom of the carrier 200, and a mounting rod 22 is fixedly connected to the output end of the cylinder 21. An array of guide grooves 221 are provided on the side of the mounting rod 22. A push rod 1 222 is rotatably provided on the outer side of the mounting rod 22. The end of the push rod 1 222 away from the mounting rod 22 is rotatably connected to a sliding seat 223. The sliding seat 223 slides horizontally on a guide rail 224. The guide rail 224 is fixedly installed at the bottom of the carrier 200, and a push rod 2 225 is rotatably connected to the sliding seat 223.

[0045] The end of the push rod 225 away from the sliding seat 223 is rotatably connected to the side plate 226, and a vertically movable annular support block 23 is provided in the carrier 200. The annular support block 23 is located on the outside of the mounting rod 22, and the bottom of the annular support block 23 is fixedly connected to the side plate 226. If the mounting rod 22 moves downward, the push rod 1 222 located on both sides of the mounting rod 22 swings, which will push the two sliding seats 223 to move in the opposite direction. At this time, the two sliding seats 223 will push the push rod 225 to flip over, and the push rod 225 is used to lift the side plate 226 and the annular support block 23.

[0046] A limiting column 231 is fixedly installed on the inner wall of the annular support block 23, and the limiting column 231 is slidably connected to the guide groove 221 to vertically limit and guide the annular support block 23. A support column 232 is slidably provided on the annular support block 23, and the support column 232 is vertically slidably connected to the annular support block 23, and a spring 233 is fixedly sleeved on the bottom of the support column 232. The bottom end of the spring 233 is fixedly connected to the support column 232, and the top end of the spring 233 is connected to the annular support block 23 to support the support column 232.

[0047] A support ring 234 is fixed on the support column 232. Since there is a circular empty groove above the carrier 200, for the part that has just been moved onto the carrier 200, one side of the part is suspended above the circular empty groove. At this time, the support ring 234 needs to be located at the top of the circular empty groove to support the bottom of the part and assist in feeding and moving materials. Symmetrically distributed protruding rods 24 are fixed inside the support ring 234.

[0048] A circular hole 29 is provided at the top of the mounting rod 22, and the circular hole 29 is connected to the lower end of the connecting rod 46 for positioning. A symmetrically distributed telescopic rod 25 is fixed to the side of the mounting rod 22, and a spring 26 is mounted on the telescopic rod 25. The telescopic rod 25 is close to the top of the mounting rod 22, and an inner support block 27 is fixed at one end of the telescopic rod 25 away from the mounting rod 22. The inner side of the inner support block 27 is fixedly connected to the spring 26, and a slope 28 is provided below the inner support block 27, which is slidably connected to the end of the protruding rod 24.

[0049] When the protruding rod 24 moves upward along with the annular support block 23, the protruding rod 24 is slidably connected to the inclined surface 28. As the protruding rod 24 moves upward, the inner support block 27 will approach the mounting rod 22, the telescopic rod 25 will be shortened and the spring 26 will be compressed. At this time, the supporting ring 234 moves upward. Conversely, when the supporting ring 234 moves downward until the protruding rod 24 is separated from the inclined surface 28, the spring 26 pushes the inner support block 27 to move outward, supporting the inside of the circular ring part and fixing the part. Then, the connecting rod 46 is moved downward to connect with the circular hole 29. The pressing tool 49 is fitted on the upper end surface of the part, pressing down the top side of the product, locking the upper and lower surfaces and the inner side of the part, so that the part is coaxially fixed with the carrier 200.

[0050] like Figure 9 As shown, an open groove 31 is provided at one end of the feeding table 3, and the open groove 31 is located on the outside of the carrier 200, which is convenient for feeding parts onto the carrier 200. A roller 32 is rotated in the open groove 31 to support and feed the parts. Horizontal grooves 33 are provided on the inner walls of both sides of the feeding table 3, and round rods 37 are slidably provided on both sides of the feeding table 3. A fixed rod 35 is fixed at one end of the round rod 37 located on the feeding table 3, and a guide rod 34 is rotatably connected to the fixed rod 35. The end of the guide rod 34 away from the fixed rod 35 is slidably connected to the horizontal groove 33.

[0051] When the part moves to the guide rod 34, the part slides along the surface of the guide rod 34 until it moves out from between the two fixed rods 35, and then moves to the carrier 200 for precise loading. For parts of different diameters, the spacing between the two fixed rods 35 is adjusted to match the positioning and feeding of parts of different diameters. When loading onto the carrier 200, when one side of the part is in contact with the blocking rod 44, the part is located on the carrier 200, and subsequent parts are located on the feeding table 3.

[0052] An array of locking grooves 38 are provided on the round rod 37. A spring three 36 is fixedly connected to one side of the round rod 37. The spring three 36 is fixedly connected to the outer side of the feeding platform 3. A locking rod is fixedly installed on the outer side of the feeding platform 3. The locking rod is connected to the locking groove 38 to lock the position of the adjusted fixed rod 35.

[0053] like Figure 10 、 Figure 11As shown, the slide module 2 5 is fixedly mounted with the slide module 3 51, the slide module 3 51 is fixedly provided with a horizontally arranged motor plate 52, the motor plate 52 is fixedly provided with a motor 2 53, the output end of the motor 2 53 is fixedly connected with a direction adjustment seat 54, one end of the direction adjustment seat 54 is fixed with two brackets 55, the lower end of the bracket 55 is fixed with a limit shaft 56, the other end of the direction adjustment seat 54 is fixed with a drive motor, the output end of the drive motor is fixedly connected with a lead screw 541, and the lead screw 541 is threadedly connected with a moving block 542.

[0054] The moving block 542 slides on the adjustment seat 54 along the length direction of the lead screw 541. A driven rod 59 is rotatably provided below the moving block 542. A mounting block 57 is provided between the two brackets 55. Straight grooves 58 are provided on both sides of the mounting block 57. The end of the limiting shaft 56 is inserted into the straight groove 58 and is rotatably connected to the mounting block 57. A welding gun is fixedly installed at one end of the mounting block 57, and the other end is rotatably connected to the driven rod 59.

[0055] When the moving block 542 moves toward the mounting block 57 driven by the lead screw 541, and then the mounting block 57 rotates around the limit shaft 56, the output position of the welding gun is adjusted, and the direction of the welding gun is adjusted. A fastening bolt is provided on the bracket 55, and the fastening bolt passes through the bracket 55 and is connected to the side of the mounting block 57 to lock the mounting block 57, which is conducive to fixing the adjusted welding gun angle.

[0056] In this embodiment, the slide module 1 4 , the slide module 2 5 and the slide module 3 51 all adopt the model: GTH7A.

[0057] Here’s how it works:

[0058] During the actual working process, the annular parts after production are placed on the feeding table 3 and fed in sequence. At this time, the parts are pushed in sequence and gradually move from between the two fixed rods 35 to the carrier 200, and then the mounting rod 22 moves upward, and the push rod 1 222 located on both sides of the mounting rod 22 swings, which will pull the two sliding seats 223 to move toward each other. At this time, the two sliding seats 223 will pull the push rod 2 225 to flip over, and the push rod 2 225 is used to lower the position of the side plate 226 and the annular support block 23.

[0059] At this time, the two inner support blocks 27 are located inside the annular part. As the mounting rod 22 moves upward, the two inner support blocks 27 move to both sides and gradually fit inside the annular part. At this time, the annular part is coaxial with the carrier 200, and then the connecting rod 46 is controlled to move downward through the slide module 14, so that the lower end of the connecting rod 46 is connected to the circular hole 29. At the same time, the press 49 presses the annular part, and then the motor 13 drives the gear 14 to control the rotation of the carrier 200 to rotate the part.

[0060] Finally, the welding gun is moved to the welding position of the annular part and the annular welding operation is performed on the annular part. During the welding process, the weld of the welding gun is uniform, and the annular part rotates axially, and the welding process is stable and reliable.

[0061] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. An automatic welding device, characterized in that: The automatic welding device comprises an equipment table (1), on which a fixture table (2) for carrying parts is fixed; A carrier (200) is rotatably provided on the fixture table (2), a second cylinder (21) is fixedly provided at the bottom of the carrier (200), a mounting rod (22) is fixed to the output end of the second cylinder (21), a circular hole (29) is provided at the top of the mounting rod (22), the circular hole (29) is connected to the lower end of the connecting rod (46), symmetrically distributed telescopic rods (25) are fixed to the side of the mounting rod (22), a second spring (26) is fitted on the telescopic rod (25), an inner support block (27) is fixed to one end of the telescopic rod (25) away from the mounting rod (22), the inner side of the inner support block (27) is connected to the second spring (26), and an inclined surface (28) is provided below the inner support block (27).

2. An automatic welding device according to claim 1, characterized in that: A feeding platform (3) is fixed on one side of the equipment platform (1), and a mounting frame (11) is fixed on the other side. The fixture platform (2) is between the feeding platform (3) and the mounting frame (11). A motor base (12) is fixed below the equipment platform (1), and a motor 1 (13) is fixed below the motor base (12). A gear (14) is fixed at the output end of the motor 1 (13), and the gear (14) is located on one side of the fixture platform (2).

3. An automatic welding device according to claim 2, characterized in that: A slide module (4) is fixed on the mounting frame (11), a cylinder (41) is fixed on the slider of the slide module (4), a mounting seat (42) is fixed on the output end of the cylinder (41), a limit seat (43) is fixed below the mounting seat (42), a shaft (431) is rotatably provided in the limit seat (43), a claw (432) is fixed on the shaft (431), a torsion spring (433) is fixed on the shaft (431), and the torsion spring (433) is connected to the limit seat (43); A nut (421) is rotatably provided on the mounting seat (42), a screw rod (48) is slidably provided on the mounting seat (42), the screw rod (48) is threadedly connected to the nut (421), a connecting rod (46) is fixed below the screw rod (48), a clamping groove (47) is provided on one side of the connecting rod (46), the clamping groove (47) is connected to the clamping claw (432), the clamping claw (432) is connected to the clamping groove (47), and a material blocking rod (44) is fixed below the connecting rod (46).

4. An automatic welding device according to claim 3, characterized in that: The material blocking rod (44) is located on one side of the fixture table (2), a protrusion (45) is fixedly provided below the material blocking rod (44), a groove (20) is provided on the fixture table (2), the groove (20) is connected to the protrusion (45), the lower end of the connecting rod (46) passes through the limit seat (43), a pressing tool (49) is rotated on the outer side of the connecting rod (46), an outer gear ring (201) is fixed below the carrier (200), the outer gear ring (201) is located on the side of the gear (14), and the gear (14) is meshed with the outer gear ring (201).

5. The automatic welding device according to claim 1, characterized in that: The side array of the mounting rod (22) is provided with a guide groove (221), a push rod (222) is rotated on the outer side of the mounting rod (22), a sliding seat (223) is rotated on the end of the push rod (222) away from the mounting rod (22), a guide rail (224) is fixed to the inner bottom of the carrier (200), the sliding seat (223) slides horizontally on the guide rail (224), and a push rod (225) is rotated on the sliding seat (223); The push rod 2 (225) is rotated with a side plate (226) at one end away from the sliding seat (223), and an annular support block (23) is provided in the carrier seat (200). The annular support block (23) is located on the outside of the mounting rod (22), and the bottom of the annular support block (23) is connected to the side plate (226). A limiting column (231) is fixed on the inner wall of the annular support block (23), and the limiting column (231) is slidably connected to the guide groove (221). A support column (232) is slidably provided on the annular support block (23).

6. An automatic welding device according to claim 5, characterized in that: A spring (233) is fixed at the bottom of the support column (232), and the bottom end of the spring (233) is connected to the support column (232). A support ring (234) is fixed on the support column (232), and symmetrically distributed protruding rods (24) are fixed in the support ring (234). The inclined surface (28) is slidably connected to the end of the protruding rod (24).

7. The automatic welding device according to claim 2, characterized in that: One end of the feeding platform (3) is provided with an open groove (31), the open groove (31) is located outside the carrier (200), a roller (32) rotates in the open groove (31), and horizontal grooves (33) are provided on the inner walls of both sides of the feeding platform (3). Round rods (37) slide on both sides of the feeding platform (3), a fixed rod (35) is fixed at one end of the round rod (37), a guide rod (34) rotates on the fixed rod (35), and one end of the guide rod (34) is slidably connected to the horizontal groove (33).

8. An automatic welding device according to claim 7, characterized in that: The round rod (37) is provided with a locking groove (38) in an array. A spring three (36) is fixed on one side of the round rod (37). The spring three (36) is connected to the outer side of the feeding platform (3). A locking rod is fixed on the outer side of the feeding platform (3). The locking rod is connected to the locking groove (38).

9. The automatic welding device according to claim 2, characterized in that: A slide module 2 (5) is fixed on one side of the feeding platform (3), a slide module 3 (51) is fixed on the slider of the slide module 2 (5), a motor plate (52) is fixed on the slider of the slide module 3 (51), a motor 2 (53) is fixed on the motor plate (52), an adjustment seat (54) is fixed on the output end of the motor 2 (53), two brackets (55) are fixed on one end of the adjustment seat (54), and a driving motor is fixed on the other end, a limiting shaft (56) is fixed on the lower end of the bracket (55), a lead screw (541) is fixed on the output end of the driving motor, and a moving block (542) is threadedly connected to the lead screw (541).

10. An automatic welding device according to claim 9, characterized in that: A driven rod (59) is rotatably provided below the moving block (542), a mounting block (57) is provided between the two brackets (55), straight grooves (58) are provided on both sides of the mounting block (57), a limiting shaft (56) is rotatably connected to the mounting block (57), a welding gun is fixed to one end of the mounting block (57), and the other end is rotatably connected to the driven rod (59).

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