A plasma cutting and welding device

Abstract

A plasma cutting and welding device belongs to the field of gas pipeline engineering technology, including a machine body, two Y-axis moving structures, an X-axis moving structure, a conversion structure, and an automatic replacement structure. At this time, the telescopic rod of the first electric cylinder is lowered, so that the electromagnetic cartridge can remove the head. At this time, the electromagnetic controller is closed, and the electromagnetic cartridge loses its magnetic force. At this time, the output shaft of the fourth servo motor drives the crankshaft to rotate, thereby the replaced head in the electromagnetic cartridge can be removed. At this time, the telescopic rod of the second electric cylinder drives the tooth bar to extend and retract, thereby the third gear drives the electromagnetic cartridge to rotate. When its opening rotates to one end of the card slot plate, the spring drives the push plate to push one of the replacement heads into the electromagnetic cartridge. At this time, the electromagnetic controller is started, so that the electromagnetic cartridge can adsorb the replacement head. By starting the first electric cylinder again, the mounting plate is raised, and the replacement head is clamped in the carrier plate or the welding head.

Description

Technical Field

[0001] The invention relates to the technical field of gas pipeline engineering, in particular to plasma cutting and welding equipment. Background Art

[0002] A natural gas pipeline is a pipeline that transports natural gas, including associated gas produced by oil fields, from the extraction site or processing plant to the city's gas distribution center or industrial enterprise users. It is also called a gas transmission pipeline. Using natural gas pipelines to transport natural gas is a way to transport a large amount of natural gas on land. Natural gas pipelines account for about half of the world's total pipeline length.

[0003] At present, before the gas pipeline is installed, it is necessary to weld and cut the length of the gas pipeline. In the prior art, two machines are needed for cutting and welding, and the conversion between pipeline cutting and welding is relatively cumbersome. In addition, the welding head or cutting head of the existing plasma welding and welding equipment needs to be replaced during long-term work. Generally, it is replaced manually by wearing gloves, but the manual replacement efficiency is slow, and the heat emitted by the replaced welding or cutting head may cause harm to the staff. Based on the shortcomings of the existing technology, the present invention designs a plasma cutting and welding equipment. Summary of the invention

[0004] The present invention provides a plasma cutting and welding device, which has the advantages of being able to switch between cutting and welding modes and automatically replacing the cutting or welding head, thereby solving the problems mentioned in the above background technology.

[0005] The present invention provides the following technical solutions: a plasma cutting and welding device, comprising a body, two Y-axis moving structures, an X-axis moving structure, a conversion structure, and an automatic replacement structure, wherein the conversion structure comprises a plasma driving rod, a sleeve shell is fixedly installed at one end of the plasma driving rod, a first rotating rod is rotatably installed inside the sleeve shell, a first turning handle is installed at the top end of the first rotating rod, a first gear is installed at the bottom end of the first rotating rod, a second rotating rod is rotatably installed inside the sleeve shell, a second gear is fixedly installed on the outer surface of the second rotating rod, a carrying plate is installed at the bottom end of the second rotating rod, a cutting head is installed at the bottom of the carrying plate, and a welding head is installed at the bottom of the carrying plate; the automatic replacement structure comprises a first electric cylinder, a mounting device is installed at one end of the telescopic rod of the first electric cylinder A plate, a slot plate is installed on the top of the mounting plate, a spring is installed on one side of the inner wall of the slot plate, a push plate is installed on one end of the spring, a plurality of replacement heads are placed inside the slot plate, an electromagnetic cartridge is rotatably installed on the outer surface of the mounting plate, side plates are installed on both sides of the top of the mounting plate, a bent rod is rotatably installed between the two side plates, a fourth fixing ring is installed on one side of one of the side plates, a fourth servo motor is installed inside the fourth fixing ring, one end of the output shaft of the fourth servo motor is fixedly connected to the bent rod, an electromagnetic controller is installed at the bottom of the electromagnetic cartridge, a third gear is installed at the bottom of the electromagnetic cartridge, two fixing bars are installed at the bottom of the mounting plate, a second electric cylinder is installed inside the two fixing bars, and a toothed bar is installed at one end of the telescopic rod of the second electric cylinder.

[0006] Preferably, Y-axis moving structures are installed on both sides of the outer surface of the body, four supporting legs are installed on the bottom of the body, and a length adjustment structure is installed inside the body.

[0007] Preferably, the two Y-axis moving structures include a first slot plate, a first fixed ring is installed on one side of the outer surface of the first slot plate, a first servo motor is installed inside the first fixed ring, rotating pulleys are rotatably installed on both sides of the interior of the first slot plate, linkage belts are sleeved on the outer surfaces of the two rotating pulleys, a moving rod is installed on the outer surface of the linkage belt, one end of the output shaft of the first servo motor is fixedly connected to one of the rotating pulleys, a first slot is opened on the top of the first slot plate, and the two moving rods pass through the first slot.

[0008] Preferably, an X-axis moving structure is installed on the top of the two moving rods, and the X-axis moving structure includes a cross plate, which is fixedly connected to the first electric cylinder, and a second slot plate is installed on the top of the cross plate, and a second fixing ring is installed on one side of the outer surface of the second slot plate, and a second servo motor is installed inside the second fixing ring.

[0009] Preferably, a one-way screw is installed at one end of the output shaft of the second servo motor, and the one-way screw is rotatably connected to the second slot plate. A movable shell is threadedly installed on the outer surface of the one-way screw, and a third servo motor is installed inside the movable shell. One end of the output shaft of the third servo motor is fixedly connected to the plasma driving rod.

[0010] Preferably, the length adjustment structure comprises an arc-shaped slot plate, second slots are provided on both sides of the interior of the arc-shaped slot plate, a bidirectional screw rod is rotatably installed inside the arc-shaped slot plate, and a second handle is installed at one end of the bidirectional screw rod passing through the arc-shaped slot plate.

[0011] Preferably, internal thread plates are threadedly installed on both sides of the outer surface of the bidirectional screw rod, support rods are installed on the tops of the two internal thread plates, two groups of arc-shaped hoops are installed on the tops of the two support rods, and a tube body is placed on the tops of the two groups of arc-shaped hoops.

[0012] Preferably, a rotating structure is installed at one end of one of the internal threaded plates, and the rotating structure includes an extension plate, a support seat is installed on the top of the extension plate, a fifth fixing ring is installed on one side of the outer surface of the support seat, and a fifth servo motor is installed inside the fifth fixing ring.

[0013] Preferably, a threaded tube is installed at one end of the output shaft of the fifth servo motor, a threaded ring is threadedly installed on the outer surface of the threaded tube, a collar is sleeved inside the threaded ring, a first hinged rod is hingedly installed on the upper and lower sides of the collar, and a fastening bolt is threadedly installed on one side of the outer surface of the threaded ring.

[0014] Preferably, an extension head is installed at one end of the threaded tube, and two hinged seats are installed on the upper and lower sides of the extension head. The second hinged rods are hingedly installed inside the two groups of hinged seats, and an inner wall support plate is hingedly installed at one end of each two of the second hinged rods, and the two inner wall support plates are respectively hingedly connected to the first hinged rod.

[0015] The present invention has the following beneficial effects:

[0016] 1. A plasma cutting and welding device, through a conversion structure and an automatic replacement structure, when welding and cutting a pipeline, the first rotating rod drives the first gear to rotate by manually turning the first handle, and because the outer surfaces of the first gear and the second gear are meshed with each other, the second gear can rotate with the first gear, thereby the carrier plate can be rotated, so that the cutting head and the welding head can be exchanged, thereby realizing the switching of cutting and welding modes. When the device needs to replace the welding or cutting head after working for a long time, the output shaft of the third servo motor can drive the plasma driving rod to rotate 45° to one side, and the carrier plate or the welding head can be stopped just above the electromagnetic cartridge. At this time, the mounting plate is raised by driving the first electric cylinder, so that the electromagnetic cartridge can cover the head of the carrier plate or the welding head, and the electromagnetic controller is started at this time. The electromagnetic cartridge can absorb the head. At this time, the telescopic rod of the first electric cylinder descends, so that the electromagnetic cartridge can remove the head. At this time, the electromagnetic controller is closed, and the electromagnetic cartridge loses its magnetic force. At this time, the output shaft of the fourth servo motor drives the crankshaft to rotate, so that the head replaced in the electromagnetic cartridge can be removed. At this time, the telescopic rod of the second electric cylinder drives the tooth bar to extend and retract, so that the third gear drives the electromagnetic cartridge to rotate. When its opening rotates to one end of the card slot plate, the spring drives the push plate to push one of the replacement heads into the electromagnetic cartridge. At this time, the electromagnetic controller is started, so that the electromagnetic cartridge can absorb the replacement head. By starting the first electric cylinder again, the mounting plate rises, and the replacement head is stuck in the carrier plate or the welding head, thereby completing the purpose of fully automatic replacement of welding or cutting heads and replaceable cutting and welding modes;

[0017] 2. This plasma cutting and welding equipment, through the Y-axis moving structure and the X-axis moving structure, when cutting or welding the pipe body, by starting the first servo motor, the two rotating pulleys are rotated through the linkage belt, and through the connection of the linkage belt, the moving rod follows the linkage belt to move horizontally in the Y-axis direction, thereby driving the conversion structure to the required cutting or welding position, and welding or cutting can be carried out after the positioning is completed, and by starting the second servo motor, its output shaft can drive the one-way screw to rotate, and through the limitation of the second slot plate, the moving shell can be horizontally moved in the X-axis direction on the outer surface of the one-way screw, thereby the pipe body can be transversely cut or welded, thereby improving the welding or cutting accuracy of the equipment;

[0018] 3. The plasma cutting and welding equipment, through the length adjustment structure, can rotate the second handle to rotate the bidirectional screw rod when welding two sections of pipe body or cutting one section of pipe body, thereby driving the internal thread plates on both sides to move horizontally in opposite directions on the outer surface of the bidirectional screw rod, so that the two sets of arc-shaped hoop strips can be moved to symmetrical positions, so that pipe bodies of different lengths can be loaded;

[0019] 4. This kind of plasma cutting and welding equipment, through the rotating structure, when the tube body is placed on the two sets of arc-shaped hoop strips, the opening of one end of the tube body is sleeved on the outer surface of the rotating structure, at this time, by loosening the fastening bolt, the ring can be rotated on the outer surface of the threaded ring, and then by rotating the threaded ring, the threaded ring is moved horizontally on the outer surface of the threaded tube. Since the ring is sleeved inside the threaded ring, when the threaded ring moves, the first hinged rods on the upper and lower sides of the ring can press the inner wall support plate upward, thereby allowing the second hinged rods on the upper and lower sides to gradually become vertical. At this time, the inner wall support plates on the upper and lower sides can support the inner wall of the tube body, and then by tightening the fastening bolt again, one end of the fastening bolt can support the ring and fix it, so that the ring and the threaded ring are in a fixed state. When the tube body is welded or cut, the fifth servo motor is driven to drive the output shaft to drive the threaded ring to rotate, thereby driving the tube body to rotate, thereby completing the welding and cutting work. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the appearance structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the first slot plate of the present invention;

[0022] Figure 3 Schematic diagram of the first notch structure of the present invention

[0023] Figure 4 This is a schematic diagram of the second slot plate structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the third servo motor of the present invention;

[0025] Figure 6 This is a schematic diagram of the casing structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the mounting plate of the present invention;

[0027] Figure 8 This is a schematic diagram of the cartridge replacement structure of the present invention;

[0028] Fig. 9 This is a schematic diagram of the structure of the arc-shaped slot plate of the present invention;

[0029] Fig.10 This is a schematic diagram of the structure of the internal thread plate of the present invention;

[0030] Fig.11 It is a schematic diagram of the structure of the threaded pipe of the present invention;

[0031] Fig.12 It is a schematic diagram of the inner wall support plate structure of the present invention.

[0032] In the figure: 1, machine body; 2, Y-axis moving structure; 21, first slot plate; 22, first fixed ring; 23, first servo motor; 24, rotating pulley; 25, linkage belt; 26, moving rod; 27, first slot; 3, X-axis moving structure; 31, horizontal plate; 32, second slot plate; 33, second fixed ring; 34, second servo motor; 35, one-way screw rod; 36, moving shell; 361, third servo motor; 4, conversion structure; 41, plasma driving rod; 42, sleeve shell; 43, first rotating rod; 44, first rotating handle; 45, first gear; 46, second rotating rod; 47, second gear; 48, bearing plate; 49, cutting head; 410, welding head; 5, automatic replacement structure; 51, first electric cylinder; 52, mounting plate; 53, slot plate; 54, spring; 55, push plate; 56, more Change head; 57, side plate; 58, curved rod; 59, fourth fixed ring; 510, fourth servo motor; 511, electromagnetic cartridge; 512, electromagnetic controller; 513, third gear; 514, fixed strip; 515, second electric cylinder; 516, toothed strip; 6, length adjustment structure; 61, arc groove plate; 62, second notch; 63, two-way screw rod; 64, internal thread plate; 65, support rod; 66, arc hoop strip; 67, second handle; 7, tube body; 8, supporting leg; 9, rotating structure; 91, extension plate; 92, support seat; 93, fifth fixed ring; 94, fifth servo motor; 95, threaded pipe; 96, threaded ring; 97, sleeve ring; 98, first hinged rod; 99, extension head; 910, hinged seat; 911, second hinged rod; 912, inner wall support plate; 913, fastening bolt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-12A plasma cutting and welding device comprises a machine body 1, two Y-axis moving structures 2, an X-axis moving structure 3, a conversion structure 4, and an automatic replacement structure 5. The conversion structure 4 comprises a plasma driving rod 41, a casing 42 is fixedly installed at one end of the plasma driving rod 41, a first rotating rod 43 is rotatably installed inside the casing 42, a first turning handle 44 is installed at the top end of the first rotating rod 43, a first gear 45 is installed at the bottom end of the first rotating rod 43, a second rotating rod 46 is rotatably installed inside the casing 42, a second gear 47 is fixedly installed on the outer surface of the second rotating rod 46, a carrying plate 48 is installed at the bottom end of the second rotating rod 46, a cutting head 49 is installed at the bottom of the carrying plate 48, and a welding head 410 is installed at the bottom of the carrying plate 48; the automatic replacement structure 5 comprises a first electric cylinder 51, a mounting plate 52 is installed at one end of the telescopic rod of the first electric cylinder 51, and a mounting plate 52 is installed at the top of the mounting plate 52. A slot plate 53, a spring 54 is installed on one side of the inner wall of the slot plate 53, a push plate 55 is installed on one end of the spring 54, a plurality of replacement heads 56 are placed inside the slot plate 53, an electromagnetic cartridge 511 is rotatably installed on the outer surface of the mounting plate 52, side plates 57 are installed on both sides of the top of the mounting plate 52, a crank rod 58 is rotatably installed between the two side plates 57, a fourth fixing ring 59 is installed on one side of one of the side plates 57, a fourth servo motor 510 is installed inside the fourth fixing ring 59, one end of the output shaft of the fourth servo motor 510 is fixedly connected to the crank rod 58, an electromagnetic controller 512 is installed at the bottom of the electromagnetic cartridge 511, a third gear 513 is installed at the bottom of the electromagnetic cartridge 511, two fixing bars 514 are installed at the bottom of the mounting plate 52, a second electric cylinder 515 is installed inside the two fixing bars 514, and a toothed bar 516 is installed at one end of the telescopic rod of the second electric cylinder 515.

[0035] See also Figure 3-4, Y-axis moving structures 2 are installed on both sides of the outer surface of the body 1, four supporting legs 8 are installed at the bottom of the body 1, and a length adjustment structure 6 is installed inside the body 1. The two Y-axis moving structures 2 include a first slot plate 21, a first fixing ring 22 is installed on one side of the outer surface of the first slot plate 21, a first servo motor 23 is installed inside the first fixing ring 22, rotating pulleys 24 are rotatably installed on both sides of the inside of the first slot plate 21, and the outer surfaces of the two rotating pulleys 24 are sleeved with linkage belts 25, and the outer surface of the linkage belt 25 is installed with a moving rod 26, one end of the output shaft of the first servo motor 23 is fixedly connected to one of the rotating pulleys 24, and a first notch 27 is opened on the top of the first slot plate 21, and the two moving rods 26 pass through the first notch 27. The X-axis moving structure 3 is installed on the top of the two moving rods 26. The X-axis moving structure 3 includes a horizontal plate 31. The horizontal plate 31 is fixedly connected to the first electric cylinder 51. The second slot plate 32 is installed on the top of the horizontal plate 31. The second fixing ring 33 is installed on one side of the outer surface of the second slot plate 32. The second servo motor 34 is installed inside the second fixing ring 33. A one-way screw rod 35 is installed at one end of the output shaft of the second servo motor 34. The one-way screw rod 35 is rotatably connected to the second slot plate 32. A moving shell 36 is threadedly installed on the outer surface of the one-way screw rod 35. A third servo motor 361 is installed inside the moving shell 36. One end of the output shaft of the third servo motor 361 is fixedly connected to the plasma driving rod 41.

[0036] By starting the first servo motor 23, the two rotating pulleys 24 are rotated through the linkage belt 25, and through the connection of the linkage belt 25, the moving rod 26 follows the linkage belt 25 to move horizontally in the Y-axis direction, thereby driving the conversion structure 4 to the required cutting or welding position, and welding or cutting work can be carried out after the positioning is completed. By starting the second servo motor 34, its output shaft can drive the one-way screw rod 35 to rotate, and through the limiting of the second slot plate 32, the moving shell 36 can be horizontally moved on the outer surface of the one-way screw rod 35 in the X-axis direction, thereby the tube body 7 can be transversely cut or welded.

[0037] See also Figure 9-10 The length adjustment structure 6 includes an arc-shaped slot plate 61, and second slots 62 are provided on both sides of the arc-shaped slot plate 61. A bidirectional screw rod 63 is rotatably installed inside the arc-shaped slot plate 61, and a second turning handle 67 is installed at one end of the bidirectional screw rod 63 that passes through the arc-shaped slot plate 61. Internal thread plates 64 are threadedly installed on both sides of the outer surface of the bidirectional screw rod 63, and support rods 65 are installed on the tops of the two internal thread plates 64. Two groups of arc-shaped hoop strips 66 are installed on the tops of the two support rods 65, and the tube body 7 is placed on the tops of the two groups of arc-shaped hoop strips 66.

[0038] By rotating the second turning handle 67, the bidirectional screw rod 63 can be rotated, thereby driving the internal threaded plates 64 on both sides to move horizontally in opposite directions on the outer surface of the bidirectional screw rod 63, so that the two sets of arc-shaped hoop strips 66 can be moved to symmetrical positions, thereby supporting tubes 7 of different lengths.

[0039] See also Figure 11-12 , a rotating structure 9 is installed at one end of one of the internal threaded plates 64, and the rotating structure 9 includes an extension plate 91, a support seat 92 is installed on the top of the extension plate 91, a fifth fixing ring 93 is installed on one side of the outer surface of the support seat 92, and a fifth servo motor 94 is installed inside the fifth fixing ring 93. A threaded tube 95 is installed at one end of the output shaft of the fifth servo motor 94, a threaded ring 96 is threadedly installed on the outer surface of the threaded tube 95, a collar 97 is sleeved inside the threaded ring 96, a first hinge rod 98 is hingedly installed on the upper and lower sides of the collar 97, and a fastening bolt 913 is threadedly installed on one side of the outer surface of the threaded ring 96. An extension head 99 is installed at one end of the threaded tube 95, two hinge seats 910 are installed on the upper and lower sides of the extension head 99, and second hinge rods 911 are hingedly installed inside the two sets of hinge seats 910, and an inner wall support plate 912 is hingedly installed at one end of each of the two second hinge rods 911, and the two inner wall support plates 912 are respectively hingedly connected to the first hinge rod 98.

[0040] By sleeve one end opening of the tube body 7 on the outer surface of the two inner wall support plates 912, manually loosen the fastening bolts 913, so that the collar 97 can rotate on the outer surface of the threaded ring 96, and then manually rotate the threaded ring 96 to make the threaded ring 96 move horizontally on the outer surface of the threaded tube 95. Since the collar 97 is sleeved inside the threaded ring 96, when the threaded ring 96 moves, the first hinge rods 98 on the upper and lower sides of the collar 97 can press the inner wall support plates 912 upward, so that the second hinge rods 98 on the upper and lower sides ... The hinged rod 911 gradually becomes vertical, and the inner wall support plates 912 on the upper and lower sides can support the inner wall of the tube body 7. Then, by tightening the fastening bolt 913 again, one end of the fastening bolt 913 can support the ring 97 to fix it, so that the ring 97 and the threaded ring 96 are in a fixed state. When the tube body 7 is welded or cut, the fifth servo motor 94 is driven so that its output shaft drives the threaded ring 96 to rotate, thereby driving the tube body 7 to rotate, thereby completing the welding and cutting work.

[0041] Working principle, when a plasma cutting and welding device is used, in the initial state, according to the length of the tube body 7, the bidirectional screw rod 63 can be rotated by rotating the second turning handle 67, thereby driving the internal threaded plates 64 on both sides to move horizontally in opposite directions on the outer surface of the bidirectional screw rod 63, so that the two sets of arc-shaped hoop strips 66 can be moved to symmetrical positions, so that the tube bodies 7 of different lengths can be supported, and then the opening of one end of the tube body 7 is sleeved on the outer surfaces of the two inner wall support plates 912, and the fastening bolts 913 are manually loosened so that the collar 97 can be rotated on the outer surface of the threaded ring 96, and then the threaded ring 96 is manually rotated to make the threaded ring 96 move horizontally on the outer surface of the threaded tube 95. Since the collar 97 is sleeved inside the threaded ring 96, when the threaded ring 96 moves When the sleeve 97 is moved, the first hinge rods 98 on the upper and lower sides of the sleeve 97 can press the inner wall support plate 912 upward, thereby making the second hinge rods 911 on the upper and lower sides gradually become vertical. At this time, the inner wall support plates 912 on the upper and lower sides can support the inner wall of the tube body 7, and then the fastening bolts 913 are tightened again so that one end of the fastening bolts 913 can support the sleeve 97 and fix it, so that the sleeve 97 and the threaded ring 96 are in a fixed state, and then the first servo motor 23 is started to make the two rotating pulleys 24 rotate through the linkage belt 25, and through the connection of the linkage belt 25, the moving rod 26 follows the linkage belt 25 to move horizontally in the Y-axis direction, thereby the conversion structure 4 can be driven to the required cutting or welding position, and after the carrier plate 48 or the welding head 410 is started By starting the second servo motor 34, its output shaft can drive the one-way screw rod 35 to rotate. By limiting the second slot plate 32, the movable shell 36 can be horizontally moved in the X-axis direction on the outer surface of the one-way screw rod 35, thereby the tube body 7 can be horizontally cut or welded. At the same time, by driving the fifth servo motor 94, its output shaft drives the threaded ring 96 to rotate, thereby driving the tube body 7 to rotate, so that the welding and cutting work can be completed. When it is necessary to switch the cutting and welding modes, the first rotating rod 43 drives the first gear 45 to rotate through the manual first turning handle 44. Since the outer surfaces of the first gear 45 and the second gear 47 are meshed with each other, the second gear 47 can rotate with the first gear 45, thereby rotating the carrier plate 48, so that the cutting head 49 The position of the welding head 410 is exchanged, thereby switching between cutting and welding modes can be achieved. When the device needs to replace the welding or cutting head after working for a long time, the output shaft of the third servo motor 361 can be started to drive the plasma driving rod 41 to rotate 45° to one side. At this time, the carrier plate 48 or the welding head 410 can be stopped directly above the electromagnetic cartridge 511. At this time, the mounting plate 52 is raised by the driving of the first electric cylinder 51, so that the electromagnetic cartridge 511 can cover the head of the carrier plate 48 or the welding head 410. At this time, the electromagnetic controller 512 is started to adsorb the head. At this time, the telescopic rod of the first electric cylinder 51 is lowered, so that the electromagnetic cartridge 511 can remove the head. At this time, the electromagnetic controller 512 is turned off.The electromagnetic cartridge 511 loses its magnetic force. At this time, the output shaft of the fourth servo motor 510 drives the crankshaft 58 to rotate, thereby removing the replaced head in the electromagnetic cartridge 511. At this time, the telescopic rod drives the toothed bar 516 to extend and retract through the second electric cylinder 515, thereby enabling the third gear 513 to drive the electromagnetic cartridge 511 to rotate. When its opening rotates to one end of the card slot plate 53, the spring 54 drives the push plate 55 to push one of the replacement heads 56 into the electromagnetic cartridge 511. At this time, the electromagnetic controller 512 is started, so that the electromagnetic cartridge 511 can absorb the replacement head 56. By starting the first electric cylinder 51 again, the mounting plate 52 rises, and the replacement head 56 is stuck in the carrier plate 48 or the welding head 410.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plasma cutting and welding device, comprising a body (1), two Y-axis moving structures (2), an X-axis moving structure (3), a conversion structure (4), and an automatic replacement structure (5), characterized in that: The conversion structure (4) comprises a plasma driving rod (41), one end of the plasma driving rod (41) is fixedly mounted with a sleeve (42), a first rotating rod (43) is rotatably mounted inside the sleeve (42), a first turning handle (44) is mounted at the top end of the first rotating rod (43), a first gear (45) is mounted at the bottom end of the first rotating rod (43), a second rotating rod (46) is rotatably mounted inside the sleeve (42), a second gear (47) is fixedly mounted on the outer surface of the second rotating rod (46), a carrying plate (48) is mounted at the bottom end of the second rotating rod (46), a cutting head (49) is mounted at the bottom of the carrying plate (48), and a welding head (410) is mounted at the bottom of the carrying plate (48); The automatic replacement structure (5) comprises a first electric cylinder (51), a mounting plate (52) being mounted on one end of a telescopic rod of the first electric cylinder (51), a slot plate (53) being mounted on the top of the mounting plate (52), a spring (54) being mounted on one side of an inner wall of the slot plate (53), a push plate (55) being mounted on one end of the spring (54), a plurality of replacement heads (56) being placed inside the slot plate (53), an electromagnetic cartridge (511) being rotatably mounted on the outer surface of the mounting plate (52), side plates (57) being mounted on both sides of the top of the mounting plate (52), a bent rod (58) being rotatably mounted between the two side plates (57), one of which A fourth fixing ring (59) is installed on one side of the side plate (57), a fourth servo motor (510) is installed inside the fourth fixing ring (59), one end of the output shaft of the fourth servo motor (510) is fixedly connected to the crankshaft (58), an electromagnetic controller (512) is installed at the bottom of the electromagnetic cartridge (511), a third gear (513) is installed at the bottom of the electromagnetic cartridge (511), two fixing bars (514) are installed at the bottom of the mounting plate (52), a second electric cylinder (515) is installed inside the two fixing bars (514), and a toothed bar (516) is installed at one end of the telescopic rod of the second electric cylinder (515); Y-axis moving structures (2) are installed on both sides of the outer surface of the body (1), four supporting legs (8) are installed on the bottom of the body (1), and a length adjustment structure (6) is installed inside the body (1); The two Y-axis moving structures (2) comprise a first slot plate (21), a first fixing ring (22) being installed on one side of the outer surface of the first slot plate (21), a first servo motor (23) being installed inside the first fixing ring (22), rotating pulleys (24) being rotatably installed on both sides of the inside of the first slot plate (21), a linkage belt (25) being sleeved on the outer surfaces of the two rotating pulleys (24), a moving rod (26) being installed on the outer surface of the linkage belt (25), one end of the output shaft of the first servo motor (23) being fixedly connected to one of the rotating pulleys (24), a first notch (27) being provided on the top of the first slot plate (21), and the two moving rods (26) passing through the first notch (27); An X-axis moving structure (3) is installed on the top of the two moving rods (26), the X-axis moving structure (3) comprises a transverse plate (31), the transverse plate (31) is fixedly connected to the first electric cylinder (51), a second slot plate (32) is installed on the top of the transverse plate (31), a second fixing ring (33) is installed on one side of the outer surface of the second slot plate (32), and a second servo motor (34) is installed inside the second fixing ring (33); A one-way screw rod (35) is mounted on one end of the output shaft of the second servo motor (34); the one-way screw rod (35) is rotatably connected to the second slot plate (32); a moving shell (36) is threadedly mounted on the outer surface of the one-way screw rod (35); a third servo motor (361) is mounted inside the moving shell (36); and one end of the output shaft of the third servo motor (361) is fixedly connected to the plasma driving rod (41); The length adjustment structure (6) comprises an arc-shaped slot plate (61), second slots (62) are provided on both sides of the interior of the arc-shaped slot plate (61), a bidirectional screw rod (63) is rotatably mounted inside the arc-shaped slot plate (61), and a second turning handle (67) is mounted on one end of the bidirectional screw rod (63) that passes through the arc-shaped slot plate (61); Internally threaded plates (64) are threadedly mounted on both sides of the outer surface of the bidirectional screw rod (63); support rods (65) are mounted on the tops of the two internally threaded plates (64); two groups of arc-shaped hoop strips (66) are mounted on the tops of the two support rods (65); and a tube body (7) is placed on the tops of the two groups of arc-shaped hoop strips (66); A rotating structure (9) is installed at one end of one of the internal thread plates (64), the rotating structure (9) comprising an extension plate (91), a support seat (92) is installed on the top of the extension plate (91), a fifth fixing ring (93) is installed on one side of the outer surface of the support seat (92), and a fifth servo motor (94) is installed inside the fifth fixing ring (93); A threaded tube (95) is installed at one end of the output shaft of the fifth servo motor (94); a threaded ring (96) is threadedly installed on the outer surface of the threaded tube (95); a collar (97) is sleeved inside the threaded ring (96); a first hinge rod (98) is hingedly installed on the upper and lower sides of the collar (97); and a fastening bolt (913) is threadedly installed on one side of the outer surface of the threaded ring (96); An extension head (99) is installed at one end of the threaded tube (95), and two hinged seats (910) are installed on the upper and lower sides of the extension head (99). Second hinged rods (911) are hingedly installed inside the two groups of hinged seats (910), and an inner wall support plate (912) is hingedly installed at one end of each two of the second hinged rods (911), and the two inner wall support plates (912) are respectively hingedly connected to the first hinged rod (98).

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