Automatic rivet welding tool and method for pipeline

Abstract

The invention discloses an automatic rivet welding tool and method for a pipeline. The automatic rivet welding tool comprises a mounting frame, and a pipe equipment conveying mechanism, a riveting welding mechanism and a pipe fitting supporting mechanism are mounted on the mounting frame; the pipe equipment conveying mechanism comprises an outer hexagonal cross rod, a plurality of supporting pieces are installed at the bottom of the outer hexagonal cross rod, a plurality of inner wall guiding conveying assemblies are fixedly installed on the outer wall of the outer hexagonal cross rod, and a riveting inner support with the position adjustable is installed at the tail end of the outer hexagonal cross rod. The pipe equipment is conveyed by the inner wall guide conveying assembly and can push the supporting piece to be separated from the outer hexagonal cross rod; the riveting welding mechanism comprises a riveting grooved wheel and a welding head which can run around the periphery of the riveting inner support. The invention relates to the technical field of pipeline machining. The problems that in existing pipeline rivet welding, the manual operation efficiency is low, the labor intensity is large, the cost is high, existing automatic equipment is single in function, poor in collaboration and difficult to debug and maintain, and full-process automatic efficient operation is difficult to achieve are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline processing, and particularly to an automatic riveting and welding tooling and method for pipelines. Background Art

[0002] In the field of pipeline processing, manufacturing, and installation, pipeline riveting and welding are key processes to ensure the stable connection of pipelines and the normal operation of the system. With the continuous expansion of industrial production scale and the increasing requirements for pipeline quality, higher demands are placed on the efficiency and automation level of pipeline riveting and welding.

[0003] Currently, some enterprises still use manual labor for pipeline riveting and welding operations. During the manual operation process, workers need to complete multiple steps such as pipeline positioning, riveting, and welding in sequence. This not only results in high labor intensity but also extremely low work efficiency. For example, in large pipeline projects, it may take several hours or even longer to manually rivet and weld a single pipeline, making it difficult to meet the construction period requirements of large-scale production and engineering construction. At the same time, manual operation is greatly affected by factors such as the worker's own state and technical level, and the work efficiency fluctuates significantly, leading to difficulties in accurately arranging production plans and high labor costs.

[0004] Although some enterprises have introduced automated pipeline riveting and welding equipment, most of the existing automated equipment has problems such as single function and poor coordination among various mechanisms. For example, some equipment can only achieve single welding automation, and manual assistance is still required in the pipeline conveying, positioning, riveting, and other links, unable to form a complete automated work process; some other equipment has multiple functions, but there is a lack of effective linkage mechanisms among various mechanisms, and it is prone to uncoordinated situations during operation, resulting in frequent equipment downtime for adjustment and limited improvement in actual work efficiency. In addition, the operation interfaces of existing automated equipment are complex, and the debugging and maintenance are difficult, further affecting the equipment's usage efficiency and production continuity.

[0005] Therefore, developing an automatic riveting and welding tooling that can achieve full-process automated operations for pipeline conveying, support, riveting, and welding, and with efficient coordination among various mechanisms, has important practical significance for improving pipeline riveting and welding efficiency, reducing labor costs, and ensuring production progress. Summary of the Invention

[0006] In order to solve the problems of low efficiency, high labor intensity, and high cost in existing pipeline riveting and welding by manual operation, as well as the problems of single function, poor coordination, difficult debugging and maintenance in existing automated equipment, and the difficulty in achieving full-process automated and efficient operation, the purpose of the present invention is to provide an automatic riveting and welding tooling and method for pipelines.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a kind of automatic riveting and welding tool for pipelines, including a mounting frame, on which a pipe equipment conveying mechanism, a riveting and welding mechanism and a pipe fitting support mechanism are installed; the pipe equipment conveying mechanism includes an outer hexagonal cross bar, a plurality of support members are installed at the bottom of the outer hexagonal cross bar, a plurality of inner wall guide conveying assemblies are fixedly installed on the outer wall of the outer hexagonal cross bar, and a riveted inner support with adjustable position is installed at the end of the outer hexagonal cross bar, the pipe equipment is conveyed by the inner wall guide conveying assembly and can push the support member to detach from the outer hexagonal cross bar; the riveting and welding mechanism includes a riveting groove wheel and a welding head that can run around the outer periphery of the riveted inner support; the pipe fitting support mechanism includes two support rods which are cross-hinged with each other in the middle, and two first support wheels are installed on the top of the two support rods.

[0008] Preferably, the mounting frame includes a base, and a plurality of columns and a gantry are fixedly connected to the top surface of the base; and a plurality of beams are fixedly connected to the tops of the columns.

[0009] Preferably, the support member includes an open slot seat fixedly mounted on the cross beam, the inner wall of the open slot seat is hinged with a support frame, the side wall of the support frame is blocked with an inner wall of one side of the open slot seat, a first electric push rod is fixedly mounted on the top inside the support frame, the telescopic end of the bottom of the first electric push rod is fixedly connected with a rectangular frame, a movable rod is slidably connected with the bottom of the rectangular frame, one end of the movable rod located inside the rectangular frame is fixedly connected with a rectangular plate slidably connected to the inner wall of the rectangular frame, the outer wall of the movable rod located inside the rectangular frame is provided with a spring, and the two ends of the spring are respectively pressed against the bottom of the rectangular plate and the bottom of the rectangular frame; the bottom of the movable rod is fixedly connected with a U-shaped frame, the inner wall of the U-shaped frame is rotatably connected with a roller through a pin shaft, and the top of the rectangular frame is fixedly connected with a first metal block The top surface of the rectangular plate is fixedly connected with a second metal block, the first metal block is blocked with the second metal block, the top of the support frame is fixedly connected with an electromagnet, the support member also includes a support opening groove fixedly installed at the bottom of the outer hexagonal cross bar, the top of the support opening groove is fixedly inlaid with an iron block, the side wall of the electromagnet is blocked with the inner side wall of the support opening groove, the corner of the top of the electromagnet is chamfered, and its top is supported on the bottom of the iron block; the side wall of the opening groove seat is transmission-connected with a hinge shaft, the hinge shaft is fixedly connected with the side wall of the support frame, and the outer wall of the hinge shaft at one end outside the opening groove seat is provided with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected with the outer wall of the hinge shaft and the side wall of the opening groove seat; the torsion force of the torsion spring flips the support frame to a vertical state through the hinge shaft.

[0010] Preferably, the first metal block is connected to a power module, the power module is connected to the electromagnet through a wire, the second metal block is connected to the electromagnet through a wire, and the first metal block and the second metal block are connected to the power through contact, so that the electromagnet generates magnetism.

[0011] Preferably, the inner wall guiding and conveying assembly includes a fixed disk fixedly sleeved on the outer wall of the hexagonal cross bar. A plurality of first guiding grooves are arranged in an annular array on the side wall of the fixed disk. A first movable plate is slidably connected to the inner wall of the first guiding groove. One end of the first movable plate located outside the first guiding groove is fixedly connected with a first U-shaped plate. A first motor is fixedly installed on the side wall of the first U-shaped plate. The output end of the first motor is axially connected with a conveying wheel arranged inside the first U-shaped plate. The side wall of the fixed disk is fixedly connected with a fixed cylinder sleeved on the hexagonal cross bar. A first bevel gear is rotatably sleeved on the outer wall of the fixed cylinder. A first adjusting disk is fixedly sleeved on the outer wall of the first bevel gear. A plurality of first strip-shaped holes are arranged in an annular array on the side wall of the first adjusting disk. The first strip-shaped holes are not radially arranged relative to the first adjusting disk. A first cylindrical head is slidably connected to the inner wall of the first strip-shaped hole. The bottom of the first cylindrical head is fixedly connected with the side wall of the first movable plate. The side wall of the first movable plate is slidably connected with the side wall of the first adjusting disk. The inner wall guiding and conveying assembly further includes a second motor fixedly installed at the bottom of the hexagonal cross bar. The output end of the second motor is axially connected with a second bevel gear meshing with the first bevel gear. Openings are respectively arranged at the bottoms of the fixed disk and the first adjusting disk.

[0012] Preferably, an installation groove is arranged at the end of the hexagonal cross bar, and two symmetrically arranged U-shaped openings are arranged on the outer wall at the installation groove.

[0013] The riveting inner support includes a second electric push rod fixedly installed inside the installation groove. The telescopic end of the second electric push rod is fixedly connected with a strip-shaped plate. Both ends of the strip-shaped plate movably pass through the two U-shaped openings, and the end part thereof is fixedly connected with a movable disk slidably sleeved on the outer wall of the hexagonal cross bar. A movable cylinder is rotatably sleeved on the outer wall of the movable disk. A third motor is fixedly installed on the side wall of the strip-shaped plate. The output end of the third motor is axially connected with a first gear. First teeth meshing with the first gear are arranged on the inner wall of the movable cylinder. A disk is fixedly sleeved on the outer wall of the movable cylinder. A plurality of second guiding grooves are arranged in an annular array on the side wall of the disk. A second movable plate is slidably connected to the inner wall of the second guiding groove. One end of the second movable plate located outside the second guiding groove is fixedly connected with a second U-shaped plate. A riveting support wheel is rotatably installed on the inner wall of the second U-shaped plate through a pin shaft. A second adjusting disk is rotatably sleeved on the outer wall of the movable cylinder. A plurality of second strip-shaped holes are arranged in an annular array on the side wall of the second adjusting disk. The second strip-shaped holes are not radially arranged relative to the second adjusting disk. A second cylindrical head is slidably connected to the inner wall of the second strip-shaped hole. The bottom of the second cylindrical head is fixedly connected with the side wall of the second movable plate. The side wall of the second movable plate is slidably connected with the side wall of the second adjusting disk. A fourth motor is fixedly installed on the side wall of the disk. The output end of the fourth motor is axially connected with a second gear. The second gear meshes with a first toothed ring. The first toothed ring is fixedly installed on the end face of the second adjusting disk. The first toothed ring coincides with the axis of the second adjusting disk.

[0014] Preferably, the riveting and welding mechanism includes a first linear motor fixedly installed on the top of the gantry. The first linear motor drives in the direction parallel to the axis of the outer hexagonal cross bar, and the bottom of its driving end is fixedly connected to a first hydraulic cylinder; the telescopic end of the bottom of the first hydraulic cylinder is fixedly connected to a lifting ring, and the port of the lifting ring is fixedly connected to an annular disc. The side wall of the annular disc is provided with a plurality of third guiding grooves arranged in an annular array. The inner wall of the third guiding groove is slidably connected to a third movable plate. One end of the plurality of third movable plates located inside the annular disc is fixedly connected to a plurality of third U-shaped plates. One end of one of the third movable plates located inside the annular disc is fixedly connected to a fourth U-shaped plate. The inner wall of the third U-shaped plate is rotatably connected to a riveting grooved wheel through a pin shaft; a fifth motor is fixedly installed on the side wall of the fourth U-shaped plate, and the output end of the fifth motor is axially connected to a welding head. The welding head is arranged inside the fourth U-shaped plate. The end face of the annular disc is fixedly connected to a notch ring. The inner wall of the notch ring is rotatably sleeved with a third adjusting disc. The side wall of the third adjusting disc is provided with a plurality of third strip-shaped holes arranged in an annular array. The third strip-shaped holes are not radially arranged relative to the third adjusting disc. The inner wall of the third strip-shaped hole is slidably connected to a third cylindrical head. The bottom of the third cylindrical head is fixedly connected to the side wall of the third movable plate. The side wall of the third movable plate is slidably connected to the side wall of the third adjusting disc. A sixth motor is fixedly installed on the annular disc. The output end of the sixth motor is axially connected to a third gear. The outer wall of the third adjusting disc located inside the notch ring is provided with second teeth meshing with the third gear. The end face of the annular disc is fixedly connected to a second tooth ring movably sleeved on the outer periphery of the lifting ring. A seventh motor is fixedly installed on the lifting ring. The output end of the seventh motor is axially connected to a fourth gear meshing with the second tooth ring.

[0015] Preferably, the pipe support mechanism includes a second linear motor fixedly installed on the base. The second linear motor drives in the direction parallel to the axis of the outer hexagonal cross bar, and the top surface of its driving end is fixedly installed with a second hydraulic cylinder; the top of the telescopic end of the second hydraulic cylinder is fixedly installed with a square groove. An eighth motor is fixedly installed at one end of the square groove. The output end of the eighth motor is axially connected to a lead screw arranged inside the square groove. The outer wall of the lead screw is threadedly penetrated by two movable blocks which are symmetrically arranged and slidably connected to the inner wall of the square groove. The bottoms of the two support rods are respectively hinged to the two movable blocks. The top of the support rod is provided with a U-shaped opening, and a hollow tube is fixedly penetrated through the inner wall of the U-shaped opening; a first support wheel is fixedly sleeved on the outer wall of the hollow tube located inside the U-shaped opening. A third hydraulic cylinder is fixedly installed in the hollow tube. The output end of the third hydraulic cylinder is axially connected to a second support wheel. The axes of the first support wheel and the second support wheel coincide, and their outer diameters are the same; a limiting disc is fixedly connected to the end face of the second support wheel. The outer diameter of the limiting disc is larger than the outer diameter of the second support wheel.

[0016] A usage method of a pipeline automatic riveting and welding tooling includes the following steps:

[0017] Step 1: Prepare the pipe equipment and the docking pipe. An outer wall at one port of the pipe equipment is circumferentially provided with a V-shaped groove, and the port is chamfered; the pipe equipment is sleeved on the inner wall guiding and conveying assembly, and the inner wall guiding and conveying assembly supports the inner wall of the pipe equipment; the docking pipe is placed on two first support wheels; multiple pipe equipment can be placed on the pipe equipment conveying mechanism;

[0018] Step 2: The inner wall guiding and conveying assembly conveys the pipe equipment. When the pipe equipment moves, every time it passes a support member, the pipe equipment pushes the support member away from the outer hexagonal cross bar, and other support members support the bottom of the outer hexagonal cross bar; after the pipe equipment passes the support member, the support member returns to its position to support the bottom of the outer hexagonal cross bar;

[0019] Step 3: The pipe equipment is sent to the riveting inner support, and the riveting inner support is tightened against the inner wall at the V-shaped groove of the pipe equipment, and the docking pipe is sleeved on the outer wall at the V-shaped groove of the pipe equipment;

[0020] Step 4: The riveting grooved wheel presses the outer wall of the docking pipe into the V-shaped groove of the pipe equipment, and the riveting and welding mechanism runs around. The riveting grooved wheel rivets and presses the outer wall of the docking pipe into the V-shaped groove;

[0021] Step 5: The welding head extends into the V-shaped groove, and the riveting and welding mechanism runs around. The welding head welds the pipe equipment and the docking pipe in the V-shaped groove.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0023] 1. The pipe equipment conveying mechanism of the present invention adopts an inner wall guiding and conveying assembly, and the conveying wheel is driven by a motor to roll on the inner wall of the pipe equipment to realize the automatic conveying of the pipe equipment; at the same time, in cooperation with the pipe fitting support mechanism, the docking pipe can be accurately positioned at the docking position of the pipe equipment automatically. The whole process does not require frequent manual handling and adjustment, greatly shortening the production preparation time and significantly improving the production efficiency.

[0024] 2. The riveting grooved wheel of the riveting and welding mechanism of the present invention can run around the outer circumference of the pipeline to perform uniform riveting on the pipeline, and then the welding head performs circumferential welding, greatly improving the firmness of the docking.

[0025] 3. Multiple pipe equipment to be welded can be stored on the pipe equipment conveying mechanism of the present invention. Through the continuous rotation of the conveying wheel, the continuous conveying and processing of the pipe equipment can be realized. After completing the riveting and welding of one pipe fitting, the next pipe fitting is immediately operated, realizing the continuity of the production process and greatly improving the utilization rate of the equipment.

[0026] 4. During the transportation of the pipe equipment by the inner wall guiding and transporting component of the present invention, when passing through each support member, the magnetic force of the electromagnet disappears, and the pipe equipment pushes the support frame to rotate on the opening groove seat, and the electromagnet disengages from the support opening groove, while other support members continuously support the bottom of the external hexagonal cross bar, which can not only provide continuous support but also automatically avoid when the pipeline passes through. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0028] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the support member of the present invention;

[0030] Figure 3 It is a schematic structural diagram of the side view of the rectangular frame of the present invention;

[0031] Figure 4 It is a schematic structural diagram of the inner wall guiding and transporting component of the present invention;

[0032] Figure 5 It is a schematic structural diagram of the riveted inner support of the present invention;

[0033] Figure 6 It is a schematic structural diagram of the second gear meshing with the first toothed ring of the present invention;

[0034] Figure 7 It is a schematic structural diagram of the riveting and welding mechanism of the present invention;

[0035] Figure 8 It is a schematic structural diagram of a part of the riveting and welding mechanism of the present invention;

[0036] Figure 9 It is a schematic structural diagram of the pipe support mechanism of the present invention;

[0037] Figure 10 It is a schematic structural diagram of the first support wheel of the present invention;

[0038] Figure 11 It is a schematic diagram of the docking of the pipe equipment and the docking pipe of the present invention;

[0039] Figure 12 For the present invention Figure 11 Schematic structural diagram of part A.

[0040] In the figure: 1. Mounting frame; 101. Base; 102. Column; 103. Gantry; 104. Cross beam; 2. Pipe equipment conveying mechanism; 21. Outer hexagonal cross bar; 2101. Mounting groove; 2102. U-shaped opening; 22. Support member; 2201. Open slot seat; 2202. Support frame; 2203. First electric push rod; 2204. Rectangular frame; 2205. Movable rod; 2206. Rectangular plate; 2207. Spring; 2208. U-shaped frame; 2209. Roller; 2210. First metal block; 2211. Second metal block; 2212. Electromagnet; 2213. Support open slot; 2214. Iron block; 2215. Hinge shaft; 2216. Torsion spring; 23. Inner wall guiding conveying assembly; 2301. Fixed disk; 2302. First guiding groove; 2303. First movable plate; 2304. First U-shaped plate; 2305. First motor; 2306. Fixed cylinder; 2307. First helical gear; 2308. First adjusting disk; 2309. First strip-shaped hole; 2310. First cylindrical head; 2311. Second motor; 2312. Second helical gear; 2313. Conveying wheel; 24. Riveting inner support; 2401. Second electric push rod; 2402. Strip-shaped plate; 2403. Movable disk; 2404. Movable cylinder; 2405. Third motor; 2406. First gear; 2407. First tooth; 2408. Riveting support wheel; 2409. Second adjusting disk; 2410. Second strip-shaped hole; 2411. Second cylindrical head; 2412. Fourth motor; 2413. Second gear; 2414. First toothed ring; 2415. Disk; 2416. Second guiding groove; 2417. Second movable plate; 2418. Second U-shaped plate; 3. Riveting and welding mechanism; 301. Riveting grooved wheel; 302. Welding head; 303. First linear motor; 304. First hydraulic cylinder; 305. Lifting ring; 306. Ring-shaped disk; 307. Third guiding groove; 308. Third movable plate; 309. Third U-shaped plate; 310. Fourth U-shaped plate; 311. Fifth motor; 312. Notch ring; 313. Third adjusting disk; 314. Third strip-shaped hole; 315. Sixth motor; 316. Third gear; 317. Second tooth; 318. Second toothed ring; 320. Third cylindrical head; 321. Seventh motor; 322. Fourth gear; 4. Pipe support mechanism; 401. Support rod; 402. First support wheel; 403. Second linear motor; 404. Second hydraulic cylinder; 405. Square groove; 406. Eighth motor; 407. Lead screw; 408. Movable block; 409. Hollow pipe; 410. Third hydraulic cylinder; 411. Second support wheel; 412. Limit disk. Detailed implementation manners

[0041] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0042] Please refer to Figures 1 to 12 . It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0043] The present invention provides a technical solution: an automatic pipe riveting and welding tooling and method, mainly composed of a mounting frame 1, a pipe equipment conveying mechanism 2, a riveting and welding mechanism 3, and a pipe fitting support mechanism 4.

[0044] The mounting frame 1 serves as the support structure of the entire tooling, including a base 101. The top surface of the base 101 is fixedly connected with a plurality of columns 102 and a gantry 103. The tops of the plurality of columns 102 are fixedly connected with a cross beam 104, providing a stable foundation for the installation of other mechanisms.

[0045] The outer hexagonal cross bar 21 serves as the track for pipe equipment conveyance, and a plurality of support members 22 are installed at its bottom. The specific structure of the support member 22 is: an open groove seat 2201 fixedly installed on the cross beam 104. A support frame 2202 is hinged to the inner wall of the open groove seat 2201 through a hinge shaft 2215. A torsion spring 2216 is sleeved on the outer wall of the hinge shaft 2215. The two ends of the torsion spring 2216 are respectively fixedly connected with the outer wall of the hinge shaft 2215 and the side wall of the open groove seat 2201. In the natural state, the torque of the torsion spring 2216 flips the support frame 2202 to the vertical state through the hinge shaft 2215, so that the side wall of the support frame 2202 abuts against one side inner wall of the open groove seat 2201, providing stable support for the outer hexagonal cross bar 21.

[0046] A first electric push rod 2203 is fixedly installed on the top of the support frame 2202, and a rectangular frame 2204 is fixedly connected to the telescopic end of the bottom thereof. A movable rod 2205 is slidably connected to the bottom of the rectangular frame 2204, and one end of the movable rod 2205 located inside the rectangular frame 2204 is fixedly connected to a rectangular plate 2206 slidably connected to the inner wall of the rectangular frame 2204. A spring 2207 is sleeved on the outer wall of the movable rod 2205 located inside the rectangular frame 2204, and the two ends of the spring 2207 are respectively pressed against the bottom of the rectangular plate 2206 and the bottom of the rectangular frame 2204. A U-shaped frame 2208 is fixedly connected to the bottom of the movable rod 2205, and a roller 2209 is rotatably connected to the inner wall of the U-shaped frame 2208 through a pin shaft. A first metal block 2210 is fixedly connected to the top of the rectangular frame 2204, and a second metal block 2211 is fixedly connected to the top surface of the rectangular plate 2206, and the first metal block 2210 is blocked with the second metal block 2211. The top of the support frame 2202 is fixedly connected with an electromagnet 2212. The support member 22 also includes a support opening slot 2213 fixedly mounted on the bottom of the outer hexagonal cross bar 21. The top of the support opening slot 2213 is fixedly inlaid with an iron block 2214. The side wall of the electromagnet 2212 is blocked with the inner side wall of the support opening slot 2213. The top corner of the electromagnet 2212 is rounded, and its top is supported on the bottom of the iron block 2214. The first metal block 2210 is connected to the power module, and the power module is connected to the electromagnet 2212 through a wire. The second metal block 2211 is connected to the electromagnet 2212 through a wire. When the first metal block 2210 and the second metal block 2211 are connected to the power supply through contact, the electromagnet 2212 generates magnetism and attracts the iron block 2214, so that the support member 22 is tightly connected to the outer hexagonal cross bar 21.

[0047] The inner wall guiding and conveying assembly 23 includes a fixed disk 2301 fixedly inserted through the outer wall of the external hexagonal cross bar 21. A number of first guiding grooves 2302 arranged in an annular array are formed on the side wall of the fixed disk 2301. A first movable plate 2303 is slidably connected to the inner wall of the first guiding groove 2302. One end of the first movable plate 2303 located outside the first guiding groove 2302 is fixedly connected to a first U-shaped plate 2304. A first motor 2305 is fixedly installed on the side wall of the first U-shaped plate 2304. The output end of the first motor 2305 is axially connected to a conveying wheel 2313 arranged inside the first U-shaped plate 2304. The side wall of the fixed disk 2301 is fixedly connected to a fixed cylinder 2306 sleeved on the external hexagonal cross bar 21. A first bevel gear 2307 is rotatably sleeved on the outer wall of the fixed cylinder 2306. A first adjusting disk 2308 is fixedly sleeved on the outer wall of the first bevel gear 2307. A number of first strip-shaped holes 2309 arranged in an annular array are formed on the side wall of the first adjusting disk 2308. The first strip-shaped holes 2309 are non-radially arranged relative to the first adjusting disk 2308. A first cylindrical head 2310 is slidably connected to the inner wall of the first strip-shaped hole 2309. The bottom of the first cylindrical head 2310 is fixedly connected to the side wall of the first movable plate 2303. The side wall of the first movable plate 2303 is slidably connected to the side wall of the first adjusting disk 2308. The inner wall guiding and conveying assembly 23 further includes a second motor 2311 fixedly installed at the bottom of the external hexagonal cross bar 21. The output end of the second motor 2311 is axially connected to a second bevel gear 2312 meshing with the first bevel gear 2307. Openings are respectively formed at the bottoms of the fixed disk 2301 and the first adjusting disk 2308. When the second motor 2311 is started, the first bevel gear 2307 is driven to rotate through the second bevel gear 2312, thereby driving the first adjusting disk 2308 to rotate. The first cylindrical head 2310 slides in the first strip-shaped hole 2309, causing the first movable plate 2303 to move in the first guiding groove 2302, realizing the tightening and loosening of the conveying wheel 2313 to adapt to pipe devices with different inner diameters.

[0048] The end of the external hexagonal cross bar 21 is provided with an installation groove 2101, and two symmetrically arranged U-shaped openings 2102 are provided on the outer wall at the installation groove 2101. The riveting inner support 24 includes a second electric push rod 2401 fixedly installed inside the installation groove 2101. The telescopic end of the second electric push rod 2401 is fixedly connected with a strip plate 2402. The two ends of the strip plate 2402 movably pass through the two U-shaped openings 2102, and the end part thereof is fixedly connected with a movable disk 2403 slidably sleeved on the outer wall of the external hexagonal cross bar 21. The outer wall of the movable disk 2403 is rotatably sleeved with a movable cylinder 2404. A third motor 2405 is fixedly installed on the side wall of the strip plate 2402. The output end of the third motor 2405 is axially connected with a first gear 2406. The inner wall of the movable cylinder 2404 is provided with a first tooth 2407 meshing with the first gear 2406. The outer wall of the movable cylinder 2404 is fixedly sleeved with a disk 2415. A plurality of second guide grooves 2416 arranged in an annular array are provided on the side wall of the disk 2415. The inner wall of the second guide groove 2416 is slidably connected with a second movable plate 2417. One end of the second movable plate 2417 outside the second guide groove 2416 is fixedly connected with a second U-shaped plate 2418. A riveting support wheel 2408 is rotatably installed on the inner wall of the second U-shaped plate 2418 through a pin shaft. The outer wall of the movable cylinder 2404 is rotatably sleeved with a second adjusting disk 2409. A plurality of second strip holes 2410 arranged in an annular array are provided on the side wall of the second adjusting disk 2409. The second strip holes 2410 are non-radially arranged relative to the second adjusting disk 2409. The inner wall of the second strip hole 2410 is slidably connected with a second cylindrical head 2411. The bottom of the second cylindrical head 2411 is fixedly connected with the side wall of the second movable plate 2417. The side wall of the second movable plate 2417 is slidably connected with the side wall of the second adjusting disk 2409. A fourth motor 2412 is fixedly installed on the side wall of the disk 2415. The output end of the fourth motor 2412 is axially connected with a second gear 2413. The second gear 2413 meshes with a first toothed ring 2414. The first toothed ring 2414 is fixedly installed on the end face of the second adjusting disk 2409. The first toothed ring 2414 coincides with the axis of the second adjusting disk 2409. The position of the riveting inner support 24 on the external hexagonal cross bar 21 can be adjusted through the second electric push rod 2401. The fourth motor 2412 drives the first toothed ring 2414 through the second gear 2413, and then drives the second adjusting disk 2409 to rotate, so that the riveting support wheel 2408 is tightened against the inner wall at the V-shaped groove of the pipe device, providing support for riveting and welding.

[0049] The riveting and welding mechanism 3 includes a first linear motor 303 fixedly installed on the top of the gantry 103. The first linear motor 303 drives in the direction parallel to the axis of the external hexagonal cross bar 21, and the bottom of its driving end is fixedly connected with a first hydraulic cylinder 304. The telescopic end at the bottom of the first hydraulic cylinder 304 is fixedly connected with a lifting ring 305. A ring-shaped disc 306 is fixedly connected to the port of the lifting ring 305. A number of third guiding grooves 307 arranged in an annular array are formed on the side wall of the ring-shaped disc 306. A third movable plate 308 is slidably connected to the inner wall of the third guiding groove 307. One end of a number of third movable plates 308 located inside the ring-shaped disc 306 is fixedly connected with a number of third U-shaped plates 309. One end of one of the third movable plates 308 located inside the ring-shaped disc 306 is fixedly connected with a fourth U-shaped plate 310. The inner wall of the third U-shaped plate 309 is rotatably connected with a riveting grooved wheel 301 through a pin shaft. A fifth motor 311 is fixedly installed on the side wall of the fourth U-shaped plate 310. The output end of the fifth motor 311 is axially connected with a welding head 302. The welding head 302 is arranged inside the fourth U-shaped plate 310. A notch ring 312 is fixedly connected to the end face of the ring-shaped disc 306. A third adjusting disc 313 is rotatably sleeved on the inner wall of the notch ring 312. A number of third strip-shaped holes 314 arranged in an annular array are formed on the side wall of the third adjusting disc 313. The third strip-shaped holes 314 are non-radial with respect to the third adjusting disc 313. A third cylindrical head 320 is slidably connected to the inner wall of the third strip-shaped hole 314. The bottom of the third cylindrical head 320 is fixedly connected with the side wall of the third movable plate 308. The side wall of the third movable plate 308 is slidably connected with the side wall of the third adjusting disc 313. A sixth motor 315 is fixedly installed on the ring-shaped disc 306. The output end of the sixth motor 315 is axially connected with a third gear 316. A second tooth 317 meshing with the third gear 316 is formed on the outer wall of the third adjusting disc 313 located inside the notch ring 312. A second tooth ring 318 movably sleeved on the outer periphery of the lifting ring 305 is fixedly connected to the end face of the ring-shaped disc 306. A seventh motor 321 is fixedly installed on the lifting ring 305. The output end of the seventh motor 321 is axially connected with a fourth gear 322 meshing with the second tooth ring 318. The position of the lifting ring 305 can be adjusted through the first linear motor 303 and the first hydraulic cylinder 304. The sixth motor 315 drives the third adjusting disc 313 to rotate through the third gear 316, so that the outer wall of the butt joint pipe is pressed into the V-shaped groove of the pipe equipment by the riveting grooved wheel 301. The seventh motor 321 drives the second tooth ring 318 to rotate through the fourth gear 322, realizing the circumferential movement of the riveting and welding mechanism 3 and completing the riveting and welding operations.

[0050] The pipe fitting support mechanism 4 includes a second linear motor 403 fixedly installed on the base 101. The second linear motor 403 drives in a direction parallel to the axis of the external hexagonal cross bar 21, and the top surface of its driving end is fixedly installed with a second hydraulic cylinder 404. The top of the telescopic end of the second hydraulic cylinder 404 is fixedly installed with a square groove 405. One end of the square groove 405 is fixedly installed with an eighth motor 406. The output end of the eighth motor 406 is axially connected to a lead screw 407 arranged inside the square groove 405. The outer wall of the lead screw 407 is threadedly penetrated by two movable blocks 408 which are symmetrically arranged and slidably connected to the inner wall of the square groove 405. The bottoms of the two support rods 401 are respectively hinged to the two movable blocks 408. The top of the support rod 401 is provided with a U-shaped opening, and a hollow tube 409 is fixedly penetrated through the inner wall of the U-shaped opening. The first support wheel 402 is fixedly sleeved on the outer wall of the hollow tube 409 located inside the U-shaped opening. A third hydraulic cylinder 410 is fixedly installed in the hollow tube 409. The output end of the third hydraulic cylinder 410 is axially connected to a second support wheel 411. The axes of the first support wheel 402 and the second support wheel 411 coincide, and their outer diameters are the same. The end face of the second support wheel 411 is fixedly connected with a limit disc 412, and the outer diameter of the limit disc 412 is larger than the outer diameter of the second support wheel 411. The position of the butt joint pipe can be adjusted by the second linear motor 403 and the second hydraulic cylinder 404. The eighth motor 406 drives the lead screw 407 to rotate, so that the two movable blocks 408 move relatively, and then the included angle between the two support rods 401 is adjusted to realize the support for butt joint pipes with different pipe diameters. The third hydraulic cylinder 410 drives the second support wheel 411 to approach the end of the butt joint pipe, and the limit disc 412 plays a limiting role.

[0051] Usage method of the automatic pipe riveting and welding tooling:

[0052] Preparation stage:

[0053] Prepare the pipe equipment and the butt joint pipe. A V-shaped groove is circumferentially opened on the outer wall of one end port of the pipe equipment, and the port is chamfered. The V-shaped groove and the chamfer can be processed by a lathe or cast integrally.

[0054] Set the pipe equipment on the inner wall guiding and conveying assembly 23, start the second motor 2311, drive the first bevel gear 2307 to rotate through the second bevel gear 2312, and then drive the first adjusting disc 2308 to rotate. The first cylindrical head 2310 slides in the first strip-shaped hole 2309, so that the first movable plate 2303 moves in the first guiding groove 2302, and the conveying wheel 2313 is tightened on the inner wall of the pipe equipment.

[0055] Place the docking pipe on the two first support wheels 402, making the two first support wheels 402 close to the docking end of the docking pipe. Start the third hydraulic cylinder 410 to drive the second support wheel 411 close to the end of the docking pipe, so that the end face of the limit disc 412 abuts against the port at the end of the docking pipe, playing a limiting role. Multiple pipe devices to be welded can be stored on the pipe device conveying mechanism 2 for subsequent continuous processing.

[0056] Pipe device conveying stage:

[0057] Start the first motor 2305 to drive the conveying wheel 2313 to rotate. The conveying wheel 2313 rolls in the inner wall of the pipe device to drive the pipe device to move, realizing the conveying of the pipe device by the inner wall guiding conveying component 23. During the movement of the pipe device, every time it passes through a support member 22, the upper half of the downward inclined chamfer pressing roller 2209 at the port of the pipe device is pressed down, causing the roller 2209 to descend. The U-shaped frame 2208 pulls down the rectangular plate 2206 through the movable rod 2205, so that the second metal block 2211 is separated from the first metal block 2210, the magnetic force of the electromagnet 2212 disappears, and the magnetic attraction effect on the iron block 2214 disappears. The pipe device pushes the support frame 2202 to rotate on the open slot seat 2201, and the electromagnet 2212 disengages from the support open slot 2213, while other support members 22 continuously support the bottom of the external hexagonal cross bar 21. After the pipe device passes through the support member 22, under the torsional force of the torsion spring 2216 on the hinge shaft 2215, the support member 22 returns to its position to support the bottom of the external hexagonal cross bar 21.

[0058] Riveting inner support adjustment and docking stage:

[0059] The pipe device is sent to the riveting inner support 24. Start the fourth motor 2412 to drive the first toothed ring 2414 through the second gear 2413, so that the second adjustment disc 2409 rotates, and then the riveting support wheel 2408 is tightened against the inner wall at the V-shaped groove of the pipe device.

[0060] Adjust the position of the lifting ring 305 through the first linear motor 303 and the first hydraulic cylinder 304, and sleuth the lifting ring 305 on the outer periphery of the pipe device.

[0061] Adjust the position of the docking pipe through the second linear motor 403 and the second hydraulic cylinder 404, and sleuth the docking pipe on the outer wall at the V-shaped groove of the pipe device.

[0062] Riveting stage:

[0063] Start the sixth motor 315 to drive the third adjustment disc 313 to rotate through the third gear 316, and then the riveting grooved wheel 301 presses the outer wall of the docking pipe into the V-shaped groove of the pipe device. At this time, the angle of the welding head 302 is horizontal to avoid touching the outer wall of the docking pipe.

[0064] Start the seventh motor 321, drive the second toothed ring 318 to rotate through the fourth gear 322, rotate the annular disc 306, realize the circumferential movement of the riveting and welding mechanism 3, and the riveting grooved pulley 301 rivets and presses the outer wall of the butt joint pipe into the V-shaped groove.

[0065] Welding stage:

[0066] After the riveting grooved pulley 301 disengages from the outer wall of the butt joint pipe, start the fifth motor 311, adjust the angle of the welding head 302, and then rotate through the third adjusting disc 313 to make the welding head 302 extend into the V-shaped groove. The riveting and welding mechanism 3 moves circumferentially, and the welding head 302 welds the pipe equipment and the butt joint pipe in the V-shaped groove to complete the riveting and welding operation of the entire pipeline.

[0067] In summary, through the coordinated work of each mechanism, this automatic pipeline riveting and welding tooling realizes the automatic conveying, positioning, riveting and welding of the pipeline, improves the production efficiency and product quality, and has high practicality and popularization value.

[0068] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An automatic pipe riveting and welding tooling, comprising a mounting frame (1), characterized in that: A pipe equipment conveying mechanism (2), a riveting and welding mechanism (3) and a pipe fitting supporting mechanism (4) are installed on the mounting frame (1); the pipe equipment conveying mechanism (2) includes an external hexagonal cross bar (21), a plurality of supporting members (22) are installed at the bottom of the external hexagonal cross bar (21), a plurality of inner wall guiding and conveying components (23) are fixedly installed on the outer wall of the external hexagonal cross bar (21), an adjustable-position riveting inner support (24) is installed at the end of the external hexagonal cross bar (21), the pipe equipment is conveyed by the inner wall guiding and conveying components (23) and can push the supporting members (22) away from the external hexagonal cross bar (21); the riveting and welding mechanism (3) includes a riveting grooved wheel (301) and a welding head (302) that can run around the outer circumference of the riveting inner support (24); the pipe fitting supporting mechanism (4) includes two support rods (401) whose middles are cross-hinged, and two first support wheels (402) are installed at the tops of the two support rods (401).

2. The automatic pipe riveting and welding tooling and method according to claim 1, characterized in that: The mounting frame (1) includes a base (101), and a plurality of columns (102) and a gantry (103) are fixedly connected to the top surface of the base (101); a cross beam (104) is fixedly connected to the tops of the plurality of columns (102).

3. The automatic pipe riveting and welding tooling and method according to claim 2, characterized in that: The support member (22) comprises an open slot seat (2201) fixedly mounted on the crossbeam (104); the inner wall of the open slot seat (2201) is hingedly connected with a support frame (2202); the side wall of the support frame (2202) is in contact with the inner wall of one side of the open slot seat (2201); a first electric push rod (2203) is fixedly mounted on the top of the support frame (2202); the telescopic end at the bottom of the first electric push rod (2203) is fixedly connected with a rectangular frame (2204); a movable rod (2205) is slidably connected with the bottom of the rectangular frame (2204); the movable rod (2205) is located at the top of the rectangular frame (2202). 4) one end of the interior is fixedly connected to a rectangular plate (2206) which is slidably connected to the inner wall of the rectangular frame (2204); the outer wall of the movable rod (2205) located inside the rectangular frame (2204) is sleeved with a spring (2207); the two ends of the spring (2207) are respectively pressed against the bottom of the rectangular plate (2206) and the bottom of the interior of the rectangular frame (2204); the bottom of the movable rod (2205) is fixedly connected to a U-shaped frame (2208); the inner wall of the U-shaped frame (2208) is rotatably connected to a roller (2209) via a pin shaft; the top of the interior of the rectangular frame (2204) is fixedly connected to a first metal block (221 0), the top surface of the rectangular plate (2206) is fixedly connected to a second metal block (2211), the first metal block (2210) is in contact with the second metal block (2211), the top of the support frame (2202) is fixedly connected to an electromagnet (2212), the support member (22) further comprises a support opening groove (2213) fixedly mounted on the bottom of the outer hexagonal cross bar (21), the top of the support opening groove (2213) is fixedly inlaid with an iron block (2214), the side wall of the electromagnet (2212) is in contact with the inner side wall of the support opening groove (2213), and the corner of the top of the electromagnet (2212) is The opening slot seat (2201) is provided with a rounded corner, and its top is supported on the bottom of the iron block (2214); the side wall of the opening slot seat (2201) is connected with a hinge shaft (2215), and the hinge shaft (2215) is fixedly connected with the side wall of the support frame (2202); the outer wall of the hinge shaft (2215) at one end outside the opening slot seat (2201) is provided with a torsion spring (2216), and the two ends of the torsion spring (2216) are respectively fixedly connected to the outer wall of the hinge shaft (2215) and the side wall of the opening slot seat (2201); the torsion force of the torsion spring (2216) flips the support frame (2202) to a vertical state through the hinge shaft (2215).

4. The automatic pipe riveting and welding tooling and method according to claim 3, characterized in that: The first metal block (2210) is connected to a power module, and the power module is connected to the electromagnet (2212) via a wire. The second metal block (2211) is connected to the electromagnet (2212) via a wire. When the first metal block (2210) and the second metal block (2211) are connected to power through contact, the electromagnet (2212) generates magnetism.

5. The automatic pipe riveting and welding tooling and method according to claim 1, characterized in that: The inner wall guiding and conveying assembly (23) includes a fixed disk (2301) fixedly inserted through the outer wall of the hexagonal cross bar (21). A plurality of first guiding grooves (2302) arranged in an annular array are formed on the side wall of the fixed disk (2301). A first movable plate (2303) is slidably connected to the inner wall of the first guiding groove (2302). One end of the first movable plate (2303) located outside the first guiding groove (2302) is fixedly connected to a first U-shaped plate (2304). A first motor (2305) is fixedly installed on the side wall of the first U-shaped plate (2304). The output end of the first motor (2305) is axially connected to a conveying wheel (2313) arranged inside the first U-shaped plate (2304). The side wall of the fixed disk (2301) is fixedly connected to a fixed cylinder (2306) sleeved on the hexagonal cross bar (21). A first bevel gear (2307) is rotatably sleeved on the outer wall of the fixed cylinder (2306). A first adjusting disk (2308) is fixedly sleeved on the outer wall of the first bevel gear (2307). A plurality of first strip-shaped holes (2309) arranged in an annular array are formed on the side wall of the first adjusting disk (2308). The first strip-shaped holes (2309) are not radially arranged relative to the first adjusting disk (2308). A first cylindrical head (2310) is slidably connected to the inner wall of the first strip-shaped hole (2309). The bottom of the first cylindrical head (2310) is fixedly connected to the side wall of the first movable plate (2303). The side wall of the first movable plate (2303) is slidably connected to the side wall of the first adjusting disk (2308). The inner wall guiding and conveying assembly (23) further includes a second motor (2311) fixedly installed at the bottom of the hexagonal cross bar (21). The output end of the second motor (2311) is axially connected to a second bevel gear (2312) meshing with the first bevel gear (2307). Openings are respectively formed at the bottoms of the fixed disk (2301) and the first adjusting disk (2308).

6. The automatic pipe riveting and welding tooling and method according to claim 1, characterized in that: An installation groove (2101) is formed at the end of the hexagonal cross bar (21), and two U-shaped openings (2102) symmetrically arranged are formed on the outer wall at the installation groove (2101). The riveting inner support (24) includes a second electric push rod (2401) fixedly installed inside the installation groove (2101). The telescopic end of the second electric push rod (2401) is fixedly connected to a strip-shaped plate (2402). The two ends of the strip-shaped plate (2402) movably pass through two U-shaped openings (2102), and the end thereof is fixedly connected to a movable disc (2403) slidably sleeved on the outer wall of the external hexagonal cross bar (21). The outer wall of the movable disc (2403) is rotatably sleeved with a movable cylinder (2404). A third motor (2405) is fixedly installed on the side wall of the strip-shaped plate (2402). The output end of the third motor (2405) is axially connected to a first gear (2406). The inner wall of the movable cylinder (2404) is provided with first teeth (2407) meshing with the first gear (2406). The outer wall of the movable cylinder (2404) is fixedly sleeved with a disc (2415). A plurality of second guide grooves (2416) arranged in an annular array are formed on the side wall of the disc (2415). A second movable plate (2417) is slidably connected to the inner wall of the second guide groove (2416). One end of the second movable plate (2417) located outside the second guide groove (2416) is fixedly connected to a second U-shaped plate (2418). A riveting support wheel (2408) is rotatably installed on the inner wall of the second U-shaped plate (2418) through a pin shaft. The outer wall of the movable cylinder (2404) is rotatably sleeved with a second adjusting disc (2409). A plurality of second strip-shaped holes (2410) arranged in an annular array are formed on the side wall of the second adjusting disc (2409). The second strip-shaped holes (2410) are non-radial with respect to the second adjusting disc (2409). A second cylindrical head (2411) is slidably connected to the inner wall of the second strip-shaped hole (2410). The bottom of the second cylindrical head (2411) is fixedly connected to the side wall of the second movable plate (2417). The side wall of the second movable plate (2417) is slidably connected to the side wall of the second adjusting disc (2409). A fourth motor (2412) is fixedly installed on the side wall of the disc (2415). The output end of the fourth motor (2412) is axially connected to a second gear (2413). The second gear (2413) meshes with a first toothed ring (2414). The first toothed ring (2414) is fixedly installed on the end face of the second adjusting disc (2409). The first toothed ring (2414) coincides with the axis of the second adjusting disc (2409).

7. A pipeline automatic riveting and welding tooling and method according to claim 2, characterized in that: The riveting and welding mechanism (3) includes a first linear motor (303) fixedly installed on the top of the gantry (103). The first linear motor (303) drives in the direction parallel to the axis of the external hexagonal cross bar (21), and the bottom of its driving end is fixedly connected to a first hydraulic cylinder (304). The telescopic end of the bottom of the first hydraulic cylinder (304) is fixedly connected to a lifting ring (305). The port of the lifting ring (305) is fixedly connected to an annular disc (306). A number of third guiding grooves (307) arranged in an annular array are formed on the side wall of the annular disc (306). A third movable plate (308) is slidably connected to the inner wall of the third guiding groove (307). One end of a number of the third movable plates (308) located inside the annular disc (306) is fixedly connected to a number of third U-shaped plates (309). One end of one of the third movable plates (308) located inside the annular disc (306) is fixedly connected to a fourth U-shaped plate (310). The inner wall of the third U-shaped plate (309) is rotatably connected to a riveting grooved wheel (301) through a pin shaft. A fifth motor (311) is fixedly installed on the side wall of the fourth U-shaped plate (310). The output end of the fifth motor (311) is axially connected to a welding head (302). The welding head (302) is arranged inside the fourth U-shaped plate (310). The end face of the annular disc (306) is fixedly connected to a notch ring (312). A third adjusting disc (313) is rotatably sleeved on the inner wall of the notch ring (312). A number of third strip holes (314) arranged in an annular array are formed on the side wall of the third adjusting disc (313). The third strip holes (314) are not radially arranged relative to the third adjusting disc (313). A third cylindrical head (320) is slidably connected to the inner wall of the third strip hole (314). The bottom of the third cylindrical head (320) is fixedly connected to the side wall of the third movable plate (308). The side wall of the third movable plate (308) is slidably connected to the side wall of the third adjusting disc (313). A sixth motor (315) is fixedly installed on the annular disc (306). The output end of the sixth motor (315) is axially connected to a third gear (316). Second teeth (317) meshing with the third gear (316) are formed on the outer wall of the third adjusting disc (313) located inside the notch ring (312). The end face of the annular disc (306) is fixedly connected to a second toothed ring (318) movably sleeved on the outer periphery of the lifting ring (305). A seventh motor (321) is fixedly installed on the lifting ring (305). The output end of the seventh motor (321) is axially connected to a fourth gear (322) meshing with the second toothed ring (318).

8. The automatic pipe riveting and welding tooling and method according to claim 2, characterized in that: The pipe support mechanism (4) includes a second linear motor (403) fixedly installed on the base (101). The second linear motor (403) drives in a direction parallel to the axis of the external hexagonal cross bar (21), and a second hydraulic cylinder (404) is fixedly installed on the top surface of its driving end. The top of the telescopic end of the second hydraulic cylinder (404) is fixedly installed with a square groove (405). One end of the square groove (405) is fixedly installed with an eighth motor (406). The output end of the eighth motor (406) is axially connected to a lead screw (407) arranged inside the square groove (405). The outer wall of the lead screw (407) is threadedly connected with two movable blocks (408) which are symmetrically arranged and slidably connected to the inner wall of the square groove (405). The bottoms of the two support rods (401) are respectively hinged to the two movable blocks (408). The top of the support rod (401) is provided with a U-shaped opening, and a hollow tube (409) is fixedly inserted through the inner wall of the U-shaped opening. The first support wheel (402) is fixedly sleeved on the outer wall of the hollow tube (409) inside the U-shaped opening. A third hydraulic cylinder (410) is fixedly installed in the hollow tube (409). The output end of the third hydraulic cylinder (410) is axially connected to a second support wheel (411). The axes of the first support wheel (402) and the second support wheel (411) coincide, and their outer diameters are the same. The end face of the second support wheel (411) is fixedly connected with a limit disc (412), and the outer diameter of the limit disc (412) is larger than the outer diameter of the second support wheel (411).

9. A method for using an automatic pipe riveting and welding tooling, characterized in that, Adopting a pipeline automatic riveting and welding tooling according to any one of claims 1-8, comprising the following steps: Step 1, prepare the pipe equipment and the butt joint pipe. A V-shaped groove is circumferentially opened on the outer wall of one port of the pipe equipment, and the port is chamfered; the pipe equipment is sleeved on the inner wall guiding and conveying assembly (23), and the inner wall guiding and conveying assembly (23) supports the inner wall of the pipe equipment; the butt joint pipe is placed on the two first support wheels (402); multiple pipe equipments can be placed on the pipe equipment conveying mechanism (2); Step 2, the inner wall guiding and conveying assembly (23) conveys the pipe equipment. When the pipe equipment moves, every time it passes a support member (22), the pipe equipment pushes the support member (22) away from the external hexagonal cross bar (21), and other support members (22) support the bottom of the external hexagonal cross bar (21); after the pipe equipment passes the support member (22), the support member (22) returns to its position to support the bottom of the external hexagonal cross bar (21); Step 3, the pipe equipment is sent to the riveting inner support (24), and the riveting inner support (24) tightly supports the inner wall at the V-shaped groove of the pipe equipment, and the butt joint pipe is sleeved on the outer wall at the V-shaped groove of the pipe equipment; Step 4, the riveting grooved wheel (301) presses the outer wall of the butt joint pipe into the V-shaped groove of the pipe equipment, and the riveting and welding mechanism (3) runs around. The riveting grooved wheel (301) rivets and presses the outer wall of the butt joint pipe into the V-shaped groove; Step 5, the welding head (302) extends into the V-shaped groove, and the riveting and welding mechanism (3) runs around. The welding head (302) welds the pipe equipment and the butt joint pipe in the V-shaped groove.

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