Automatic opening coiling device for large-diameter pipe fittings

Abstract

The invention discloses an automatic opening coiling device for large-diameter pipe fittings, and relates to the field of pipe fitting opening coiling devices, the automatic opening coiling device comprises a base, a shifting mechanism is arranged above the base, the shifting mechanism comprises a fixed ring rail fixed on the upper surface of the base, the inner wall of the fixed ring rail is rotatably connected with a rotating ring, the right side of the rotating ring is provided with an extrusion ring, and the right side of the extrusion ring is provided with a clamping groove; two symmetrical adjusting mechanisms are arranged in the rotating ring, and each adjusting mechanism comprises a long strip plate fixed to the inner wall of the rotating ring. According to the automatic opening coiling device for the large-diameter pipe fitting, a gas cutting nozzle can be perpendicular to the central axis of the pipe fitting and conduct inclined cutting on the pipe fitting along the inclination angle of an extrusion ring, and when the device conducts inclined cutting on the pipe fitting, the gas cutting nozzle can be always perpendicular to the surface of the pipe fitting; and a good gas cutting distance between the gas cutting nozzle and the surface of the pipe fitting can be always kept, so that the flatness of the cutting surface of the pipe fitting after gas cutting can be kept.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting beveling devices, in particular to an automatic beveling device for large-diameter pipe fittings. Background Art

[0002] The pipe cutting device is a cutting mechanism for cutting and trimming pipe fittings. During the production and processing of pipe fittings, the pipe fittings need to be cut by a pipe cutting machine according to the processing requirements, and then the cut pipe fittings are welded. At present, when cutting and trimming large-diameter pipe fittings, since large-diameter pipe fittings are thicker and usually made of iron, gas cutting is generally used to cut the pipe fittings. Gas cutting is a method of using the heat energy of a gas flame to preheat the cutting part of the workpiece to the ignition point, and then spraying a high-speed cutting oxygen flow to cause the metal to burn and release heat to achieve cutting. At present, when cutting large-diameter pipe fittings, it is usually necessary to manually measure and locate them first, then mark them, and then gas cut the pipe fittings. However, the geometric size deviation of the pipe after cutting in this way is large. At the same time, the uneven speed when manually controlling the rolling of the pipe will cause the local temperature to be too high, resulting in an uneven gas-cut end face, which is not conducive to subsequent rapid production. At the same time, when the gas cutting operation of the pipe fitting is coming to an end, there is a small part of the connection between the main part of the pipe fitting and the cut part, and this small part of the connection is difficult to support the weight of the cut part, resulting in bending and deformation of the cut part and the main part of the pipe fitting. When the gas cutting spray gun passes through these bending and deformation places for cutting, it will cause the cut end face to be uneven, affecting the subsequent pipe welding operation.

[0003] On the other hand, a patent with the search announcement number CN112548378B discloses a tool for pipe cutting, which can reserve space around the cutting part of the pipe to achieve a circumferential cutting without interference, and the cutting quality is good. However, it is difficult for the above device to keep the gas cutting nozzle perpendicular to the pipe for oblique cutting and winding operations. The current pipe winding device usually controls the gas cutting nozzle to complete the cutting operation around the pipe. When large-diameter pipes need to be obliquely cut due to process requirements, the pipe is tilted so that the gas cutting nozzle completes the oblique cutting around the pipe. Since the cutting surface of the oblique cutting of the pipe is elliptical, the staff needs to constantly adjust the distance between the gas cutting gun and the pipe to maintain the gas cutting effect, which is very cumbersome. In addition, it is difficult for the gas cutting gun to always remain perpendicular to the axis of the pipe during gas cutting, so that the gas cutting gun is not perpendicular to the surface of the pipe, resulting in a groove on the cutting surface that affects the subsequent welding operation and affects the cutting quality of the pipe. To this end, we provide a large-diameter pipe automatic winding device to solve the above problems. Summary of the invention

[0004] The present invention provides an automatic beveling device for large-diameter pipe fittings, which can always keep the gas cutting nozzle perpendicular to the pipe fitting surface when performing inclined cutting on the pipe fitting, and can always maintain a good gas cutting distance between the gas cutting nozzle and the pipe fitting surface, thereby maintaining the flatness of the cut surface of the pipe fitting after gas cutting.

[0005] The technical solution of the present invention is as follows: an automatic disc device for large-diameter pipe fittings, comprising a base, a toggle mechanism is arranged above the base, the toggle mechanism comprises a fixed ring rail fixed on the upper surface of the base, the inner wall of the fixed ring rail is rotatably connected with a rotating ring, an extrusion ring is arranged on the right side of the rotating ring, and two symmetrical adjustment mechanisms are arranged inside the rotating ring, the adjustment mechanism comprises a long strip fixed on the inner wall of the rotating ring and a rotating column 1 fixed on the inner wall of the extrusion ring, the rotating column 1 is rotatably connected to the long strip, the end of the long strip away from the extrusion ring is rotatably connected to the rotating column 2, and the rotating column 2 is connected to the rotating column 1 through a belt and a pulley transmission.

[0006] A gas cutting mechanism is arranged above the fixed ring rail, and the gas cutting mechanism comprises a mounting plate, an electric lifting rod is fixed to the outer surface of the mounting plate, a gas cutting nozzle is fixed to the telescopic end of the electric lifting rod, and a pressure rod is fixed below the mounting plate, and the pressure rod is in contact with the extrusion ring.

[0007] A clamping mechanism is arranged on the right side of the fixed ring rail, and the clamping mechanism includes a movable seat and four clamping claws. An annular slide groove is fixed on the upper surface of the movable seat, and a rotating plate is rotatably connected to the inner wall of the annular slide groove, and four groups of limit rods four in a circular array are fixed on the outer surface of the rotating plate, and the number of limit rods four in each group is two. The four groups of limit rods four are respectively slidably connected to four clamping claws, and a driving mechanism for moving the movable seat is arranged on the right side of the base.

[0008] The above-mentioned adjustment mechanism also includes a clamping plate, two limit rods (6) are fixed on the outer surface of the clamping plate, and the two limit rods (6) both penetrate the long strip plate and are slidably connected to the long strip plate. A hinge plate is arranged on the outside of the long strip plate, and the two limit rods (6) are fixed to the hinge plate. The outer surface of the hinge plate is hinged with a hinge rod (2), and the end of the hinge rod (2) away from the hinge plate is hinged with a slider (1), and the outer surface of the long strip plate is fixed with a straight slide groove, and the slider (1) is slidably connected to the inner wall of the straight slide groove. When the sliders (1) on both sides move at the same time, the slider (1) will squeeze the hinge plate through the hinge rod (2), and the hinge plate drives the clamping plate to move through the two limit rods (6), so that the two clamping plates clamp and fix the pipe fittings.

[0009] Furthermore, a pointer is fixed on the outer surface of the rotating column one, an angle scale matched with the pointer is fixed on the outer surface of the long plate, a gear three is fixed on the outer surface of the rotating column two, and the adjusting mechanism also includes a connecting plate, a rack is fixed on the outer surface of the connecting plate, the rack is meshed with the gear three, a limiting rod seven is fixed on the outer surface of the connecting plate, a limiting tube two is fixed on the outer surface of the long plate, the limiting tube two is slidably connected with the limiting rod seven, a slider two is fixed on one end of the connecting plate, when the slider two drives the connecting plate to move, the connecting plate will drive the rack to move, the rack movement drives the rotating column two to rotate through the gear three, the rotating column two drives the rotating column one to rotate through the belt and the pulley, so that the extrusion ring is deflected, and the angle of the extrusion ring after adjustment is consistent with the cutting angle of the pipe fitting by observing the rotation angle of the pointer on the angle scale.

[0010] The above-mentioned toggle mechanism also includes a toggle ring rail, a motor is fixed at the bottom of the base, a threaded rod is fixed at the output end of the motor, a bracket is fixed to the outer surface of the base, the threaded rod is rotatably connected to the bracket at one end away from the motor, the threaded rod is threadedly connected to the toggle ring rail, two limit rods are fixed to the outer surface of the fixed ring rail, the two limit rods are both slidably connected to the toggle ring rail, and the two sliders are both slidably connected to the inner wall of the toggle ring rail, the control motor drives the threaded rod to rotate, the rotation of the threaded rod drives the toggle ring rail to move, the movement of the toggle ring rail will simultaneously drive the sliders on both sides to move, so that the two clamping plates are close to the pipe fitting at the same time to clamp the pipe fitting.

[0011] Furthermore, the toggle mechanism also includes a bracket 2, a motor 2 is fixed to the outer surface of the bracket 2, a threaded rod 2 is fixed to the output end of the motor 2, the outer surface of the threaded rod 2 is threadedly connected to a toggle ring rail 2, two limit rods 2 are fixed on the top of the bracket 2, both of the two limit rods 2 are slidably connected to the toggle ring rail 2, and both of the two sliders 2 are slidably connected to the inner wall of the toggle ring rail 2, the control motor 2 drives the threaded rod 2 to rotate, and the rotation of the threaded rod 2 drives the toggle ring rail 2 to move, and the movement of the toggle ring rail 2 will simultaneously drive the two sliders on both sides to move.

[0012] The above-mentioned gas cutting mechanism also includes a fixed plate fixed above the fixed ring rail, and two sliding bars are fixed on the outer surface of the mounting plate, and the two sliding bars both penetrate the fixed plate and are slidably connected to the fixed plate. A moving plate is arranged on the left side of the fixed plate, and the two sliding bars are fixed to the moving plate. A telescopic spring is fixed between the moving plate and the fixed plate, and the extrusion ring is driven to rotate while the two clamping plates clamp the pipe fittings to rotate. At this time, the mounting plate is subjected to the spring tension of the telescopic spring, so that the compressed rod always keeps in contact with the extrusion ring, so that after the pipe fitting rotates one circle, the gas cutting nozzle completes the cutting of the pipe fitting. During the cutting process, the gas cutting nozzle will be perpendicular to the central axis of the pipe fitting and cut the pipe fitting at an angle along the inclination angle of the extrusion ring. When the device cuts the pipe fitting at an angle, it can always make the gas cutting nozzle perpendicular to the surface of the pipe fitting, and can always maintain a good gas cutting distance between the gas cutting nozzle and the surface of the pipe fitting, so as to maintain the flatness of the cut surface of the pipe fitting after gas cutting.

[0013] A limit rod five is fixed to the outer surface of the rotating plate, and a sliding tube is slidably connected to the outer surface of the limit rod five, and four hinged rods one are hinged to the outer surface of the sliding tube, and the four hinged rods one are hinged to four clamping claws respectively, an electric telescopic rod is fixed above the annular slide groove, and a toggle plate is fixed to the telescopic end of the electric telescopic rod, the sliding tube is rotatably connected to the toggle plate, and the pipe fitting is moved into the four clamping claws, and the electric telescopic rod is controlled to drive the toggle plate to move, so that the toggle plate toggle the sliding tube away from the annular slide groove, so that the sliding tube respectively passes through the four hinged rods one to make the four clamping claws approach each other to clamp the pipe fitting.

[0014] The above-mentioned driving mechanism includes a base fixed on the right side of the base, a motor three is fixed on the outer surface of the base, a threaded rod three is fixed on the output end of the motor three, the threaded rod three is rotatably connected to the base, the threaded rod three is threadedly connected to the movable seat, and two limit rods three are fixed on the upper surface of the base, and both of the two limit rods three are slidably connected to the movable seat. When cutting the pipe fitting, the motor three is controlled to drive the threaded rod three to rotate, and the rotation of the threaded rod three can drive the movable seat to move, so that the pipe fitting clamped by the four clamping claws moves into the fixed ring rail. After the cutting of the pipe fitting is completed, the movable seat is first controlled to move to move out the cut part of the clamped pipe fitting, and then the movable seat is controlled to move so that the four clamping claws are close to the main part of the pipe fitting clamped by the two clamping plates, so that the four clamping claws clamp the main part of the pipe fitting and move it out to complete the unloading.

[0015] A motor four is fixed above the motor three, a rotating rod is fixed to the output end of the motor four, the rotating rod is rotatably connected to the base, a gear one is fixed to the end of the rotating rod away from the motor four, a limiting tube one is fixed to the bottom of the base, the limiting tube one is rotatably connected to the rotating rod, a gear ring one is fixed to the outer surface of the rotating ring, and the gear ring one is meshed with gear one.

[0016] The outer surface of the rotating rod is slidably connected with a sliding tube, and the sliding tube passes through the outer surface of the movable seat and is rotatably connected to the movable seat, and two sliding bars are fixed on the outer surface of the rotating rod, and the two sliding bars are slidably connected to the sliding tube, and a gear 2 is fixed on the outer surface of the sliding tube, and a gear ring 2 is fixed on the outer surface of the rotating plate, and the gear ring 2 is meshed with the gear 2. The control motor 4 drives the rotating rod to rotate, and the rotation of the rotating rod drives the sliding tube to rotate through the sliding bar, and the gear 2 on the sliding tube will drive the rotating plate to rotate through the gear ring 2. At the same time, the rotation of gear 1 drives the rotating ring to rotate through the gear ring 1, so that the two clamping plates rotate, and the gear diameter and number of teeth of gear 1 are consistent with those of gear 2, and the gear diameter and number of teeth of gear ring 1 and gear ring 2 are consistent, so that the rotation speeds of gear ring 1 and gear ring 2 are consistent.

[0017] Compared with the prior art, the large-diameter pipe automatic flattening device has the following beneficial effects: 1. The present invention is provided with a gas cutting mechanism, an extrusion ring and an adjustment mechanism to deflect the extrusion ring. By observing the rotation angle of the pointer on the angle ruler, the adjusted angle of the extrusion ring is consistent with the cutting angle of the pipe fitting. The two clamping plates clamp the pipe fitting and rotate while driving the extrusion ring to rotate. The spring tension of the telescopic spring on the mounting plate keeps the pressure rod in contact with the extrusion ring at all times, so that the cutting operation is completed after the pipe fitting rotates one circle. The gas cutting nozzle is perpendicular to the central axis of the pipe fitting and cuts the pipe fitting obliquely along the inclination angle of the extrusion ring. When the device cuts the pipe fitting obliquely, it can always make the gas cutting nozzle perpendicular to the surface of the pipe fitting, and can always keep a good gas cutting distance between the gas cutting nozzle and the surface of the pipe fitting, so as to maintain the flatness of the cut surface of the pipe fitting after gas cutting.

[0018] 2. The present invention is provided with a driving mechanism and a clamping mechanism. Since the four clamping claws clamp the cut part of the pipe fitting, the two clamping plates clamp the main part of the pipe fitting, and the rotation speeds of the tooth ring 1 and the tooth ring 2 are the same, during the process of cutting the pipe fitting, the rotation speeds of the cut part of the pipe fitting and the main part of the pipe fitting are the same. The device can support both the main part and the cut part of the pipe fitting, effectively avoiding the bending and deformation of the cut part and the main part of the pipe fitting when the pipe fitting is cut, and can enable the cutting operation to proceed smoothly.

[0019] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the three-dimensional structure of the present invention; Figure 2 It is a rear view of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the overall split structure of the present invention; Figure 4 It is a schematic diagram of the split structure of the toggle mechanism of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the driving mechanism and the clamping mechanism of the present invention; Figure 6 It is a schematic diagram of the split structure of the clamping mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the toggle mechanism and the adjustment mechanism of the present invention when they are linked together; Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating ring and two adjusting mechanisms of the present invention; Fig. 9 It is a schematic diagram of the separate structure of the adjustment mechanism and the extrusion ring of the present invention; Fig.10 It is a three-dimensional structural schematic diagram of the pointer and angle ruler of the present invention; Fig.11 It is a partial three-dimensional structural schematic diagram of the adjustment mechanism of the present invention.

[0021] In the figure: 1. Base; 2. Toggle mechanism; 201. Fixed ring rail; 202. Limit rod 1; 203. Toggle ring rail 1; 204. Bracket 1; 205. Motor 1; 206. Threaded rod 1; 207. Bracket 2; 208. Motor 2; 209. Threaded rod 2; 210. Limit rod 2; 211. Toggle ring rail 2; 3. Driving mechanism; 301. Base; 302. Motor 3; 303. Threaded rod 3; 304. Limit rod 3; 305. Motor 4; 306. Rotating rod; 307. Slide bar; 308. Gear 1; 309. Limit tube 1; 310. Slide tube; 311. Gear 2; 4. Gas cutting mechanism; 401. Fixed plate; 402. Mounting plate; 403. Sliding rod; 404. Moving plate; 405. Telescopic spring; 406. Pressure rod; 407. Electric lifting rod; 408. Gas cutting nozzle; 5. Clamping mechanism; 501. Movable seat; 502. Rotating plate; 503. Gear ring 2; 504. Limit rod 4; 505. Limit rod 5; 506. Sliding tube; 507. Articulated rod 1; 508. Clamping claw; 509. Electric telescopic rod; 510. Toggle plate; 511. Annular slide; 6. Extrusion ring; 7. Rotating ring; 8. Gear ring 1; 9. Adjustment mechanism; 901. Long strip; 902. Clamping plate; 903. Limit rod 6; 904. Articulated plate; 905. Articulated rod 2; 906. Slider 1; 907. Straight slide; 908. Rotating column 1; 909. Pointer; 910. Angle ruler; 911. Rotating column 2; 912. Gear 3; 913. Connecting plate; 914. Slider 2; 915. Limiting tube 2; 916. Limiting rod 7; 917. Rack; 10. Pipe fittings. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1 , Figure 3 and Figure 8 The present invention provides a technical solution: an automatic disc-forming device for large-diameter pipe fittings, comprising a base 1, a toggle mechanism 2 is arranged above the base 1, the toggle mechanism 2 comprises a fixed ring rail 201 fixed on the upper surface of the base 1, the inner wall of the fixed ring rail 201 is rotatably connected with a rotating ring 7, an extrusion ring 6 is arranged on the right side of the rotating ring 7, two symmetrical adjustment mechanisms 9 are arranged inside the rotating ring 7, the adjustment mechanism 9 comprises a long strip plate 901 fixed on the inner wall of the rotating ring 7 and a rotating column 1 908 fixed on the inner wall of the extrusion ring 6, the rotating column 1 908 is rotatably connected to the long strip plate 901, the end of the long strip plate 901 away from the extrusion ring 6 is rotatably connected to a rotating column 2 911, and the rotating column 2 911 is connected to the rotating column 1 908 through a belt and a pulley transmission.

[0024] See also Fig. 9 , Fig.10 and Fig.11The adjusting mechanism 9 also includes a clamping plate 902, and two limiting rods 6 903 are fixed on the outer surface of the clamping plate 902. The two limiting rods 6 903 both penetrate the long plate 901 and are slidably connected to the long plate 901. A hinged plate 904 is arranged on the outside of the long plate 901, and the two limiting rods 6 903 are fixed to the hinged plate 904. The outer surface of the hinged plate 904 is hinged with a hinged rod 2 905, and the end of the hinged rod 2 905 away from the hinged plate 904 is hinged with a slider 1 906. A straight slide groove 907 is fixed on the outer surface of the long plate 901, and the slider 1 906 is slidably connected to the inner wall of the straight slide groove 907. When the sliders 1 906 on both sides move at the same time, the slider 1 906 will squeeze the hinged plate 904 through the hinged rod 2 905, and the hinged plate 904 drives the clamping plate 902 to move through the two limiting rods 6 903, so that the two clamping plates 902 clamp and fix the pipe fitting 10.

[0025] See also Figure 2 and Figure 4 The toggle mechanism 2 also includes a toggle ring rail 203. A motor 205 is fixed at the bottom of the base 1. A threaded rod 206 is fixed at the output end of the motor 205. A bracket 204 is fixed to the outer surface of the base 1. The end of the threaded rod 206 away from the motor 205 is rotatably connected to the bracket 204. The threaded rod 206 is threadedly connected to the toggle ring rail 203. Two limit rods 202 are fixed to the outer surface of the fixed ring rail 201. The two limit rods 202 are both slidably connected to the toggle ring rail 203. Two sliders 906 are slidably connected to the inner wall of the toggle ring rail 203. The motor 205 is controlled to drive the threaded rod 206 to rotate. The rotation of the threaded rod 206 drives the toggle ring rail 203 to move. The movement of the toggle ring rail 203 will simultaneously drive the sliders 906 on both sides to move, so that the two clamping plates 902 are simultaneously close to the pipe fitting 10 to clamp the pipe fitting 10.

[0026] See also Fig. 9 , Fig.10 and Fig.11The outer surface of the rotating column 908 is fixed with a pointer 909, the outer surface of the long plate 901 is fixed with an angle ruler 910 adapted to the pointer 909, the outer surface of the rotating column 911 is fixed with a gear 3 912, the adjustment mechanism 9 also includes a connecting plate 913, the outer surface of the connecting plate 913 is fixed with a rack 917, the rack 917 is meshed with the gear 3 912, the outer surface of the connecting plate 913 is fixed with a limit rod 7 916, the outer surface of the long plate 901 is fixed with a limit tube 2 915, the limit tube 2 915 and the limit Rod seven 916 is slidably connected, and a slider two 914 is fixed to one end of the connecting plate 913. When the slider two 914 drives the connecting plate 913 to move, the connecting plate 913 will drive the rack 917 to move. The rack 917 moves and drives the rotating column two 911 to rotate through the gear three 912. The rotating column two 911 drives the rotating column one 908 to rotate through the belt and the pulley, so that the extrusion ring 6 is deflected. By observing the rotation angle of the pointer 909 on the angle ruler 910, the adjusted angle of the extrusion ring 6 is consistent with the cutting angle of the pipe fitting 10.

[0027] See also Figure 2 and Figure 4 The toggle mechanism 2 also includes a bracket 207, a motor 208 is fixed to the outer surface of the bracket 207, a threaded rod 209 is fixed to the output end of the motor 208, and the outer surface of the threaded rod 209 is threadedly connected with a toggle ring rail 211, and two limit rods 210 are fixed on the top of the bracket 207, and the two limit rods 210 are both slidably connected to the toggle ring rail 211, and the two sliders 2 914 are both slidably connected to the inner wall of the toggle ring rail 211, and the motor 208 is controlled to drive the threaded rod 209 to rotate, and the rotation of the threaded rod 209 drives the toggle ring rail 211 to move, and the movement of the toggle ring rail 211 will simultaneously drive the sliders 2 914 on both sides to move.

[0028] See also Figure 2 and Figure 4 A gas cutting mechanism 4 is arranged above the fixed ring rail 201, and the gas cutting mechanism 4 includes a mounting plate 402. An electric lifting rod 407 is fixed to the outer surface of the mounting plate 402, and a gas cutting nozzle 408 is fixed to the telescopic end of the electric lifting rod 407. A pressure rod 406 is fixed below the mounting plate 402, and the pressure rod 406 is in contact with the extrusion ring 6.

[0029] The gas cutting mechanism 4 also includes a fixed plate 401 fixed above the fixed ring rail 201, and two slide bars 403 are fixed on the outer surface of the mounting plate 402. The two slide bars 403 both penetrate the fixed plate 401 and are slidably connected to the fixed plate 401. A moving plate 404 is arranged on the left side of the fixed plate 401. The two slide bars 403 are both fixed to the moving plate 404. A telescopic spring 405 is fixed between the moving plate 404 and the fixed plate 401. When the two clamping plates 902 clamp the pipe fitting 10 and rotate, the extrusion ring 6 is driven to rotate. At this time, the mounting plate 402 is tensioned by the telescopic spring 405. The force causes the pressure rod 406 to always remain in contact with the extrusion ring 6, so that after the pipe 10 rotates one circle, the gas cutting nozzle 408 completes the cutting of the pipe 10. During the cutting process, the gas cutting nozzle 408 will be perpendicular to the central axis of the pipe 10 and cut the pipe 10 obliquely along the inclination angle of the extrusion ring 6. When the device is cutting the pipe 10 obliquely, the gas cutting nozzle 408 can always be perpendicular to the surface of the pipe 10, and the gas cutting nozzle 408 can always be kept at a good gas cutting distance from the surface of the pipe 10, so as to maintain the flatness of the cut surface of the pipe 10 after gas cutting.

[0030] See also Figure 5 , Figure 6 and Figure 7 A clamping mechanism 5 is arranged on the right side of the fixed ring rail 201, and the clamping mechanism 5 includes a movable seat 501 and four clamping claws 508. An annular groove 511 is fixed on the upper surface of the movable seat 501, and the inner wall of the annular groove 511 is rotatably connected with a rotating plate 502. Four groups of limiting rods 504 in a circular array are fixed on the outer surface of the rotating plate 502, and the number of each group of limiting rods 504 is two. The four groups of limiting rods 504 are respectively slidably connected with the four clamping claws 508. A driving mechanism 3 for moving the movable seat 501 is arranged on the right side of the base 1. Through the arrangement of the four groups of limiting rods 504, the stability of the four clamping claws 508 when moving is increased.

[0031] A limit rod 505 is fixed to the outer surface of the rotating plate 502, and a sliding tube 506 is slidably connected to the outer surface of the limit rod 505. Four hinged rods 507 are hinged to the outer surface of the sliding tube 506. The four hinged rods 507 are hinged to the four clamping claws 508 respectively. An electric telescopic rod 509 is fixed above the annular slide groove 511. A toggle plate 510 is fixed to the telescopic end of the electric telescopic rod 509. The sliding tube 506 is rotatably connected to the toggle plate 510 to move the pipe fitting 10 to the four clamping claws 508. The electric telescopic rod 509 is controlled to drive the toggle plate 510 to move, so that the toggle plate 510 to toggle the sliding tube 506 away from the annular slide groove 511, so that the sliding tube 506 respectively drives the four clamping claws 508 to approach each other to clamp the pipe fitting 10 through the four hinged rods 507.

[0032] The driving mechanism 3 includes a base 301 fixed to the right side of the base 1, a motor 302 is fixed to the outer surface of the base 301, a threaded rod 303 is fixed to the output end of the motor 302, the threaded rod 303 is rotatably connected to the base 301, the threaded rod 303 is threadedly connected to the movable seat 501, and two limit rods 304 are fixed to the upper surface of the base 301, and the two limit rods 304 are slidably connected to the movable seat 501. When cutting the pipe 10, the motor 302 is controlled to drive the threaded rod 303 to rotate. 03 rotation, the rotation of the threaded rod 303 can drive the movable seat 501 to move, so that the pipe 10 clamped by the four clamping claws 508 moves into the fixed ring rail 201. After the cutting of the pipe 10 is completed, the movable seat 501 is first controlled to move to remove the cut part of the clamped pipe 10, and then the movable seat 501 is controlled to move so that the four clamping claws 508 are close to the main part of the pipe 10 clamped by the two clamping plates 902, so that the four clamping claws 508 clamp the main part of the pipe 10 and move it out to complete the unloading.

[0033] See also Figure 4 and Figure 5 A motor 4 305 is fixed above the motor 302, and a rotating rod 306 is fixed to the output end of the motor 4 305. The rotating rod 306 is rotatably connected to the base 301, and a gear 1 308 is fixed to the end of the rotating rod 306 away from the motor 4 305. A limiting tube 1 309 is fixed to the bottom of the base 1, and the limiting tube 1 309 is rotatably connected to the rotating rod 306. A gear ring 1 8 is fixed to the outer surface of the rotating ring 7, and the gear ring 1 8 is meshed with the gear 1 308.

[0034] The outer surface of the rotating rod 306 is slidably connected with a slide tube 310, which penetrates the outer surface of the movable seat 501 and is rotatably connected to the movable seat 501. Two slide bars 307 are fixed on the outer surface of the rotating rod 306, and the two slide bars 307 are slidably connected with the slide tube 310. A gear 2 311 is fixed on the outer surface of the slide tube 310, and a gear ring 2 503 is fixed on the outer surface of the rotating plate 502. The gear ring 2 503 is meshed with the gear 2 311, and the control motor 4 305 drives the rotating rod 306 to rotate. The rotating rod 306 rotates through the slide bar 307 to drive the slide tube 310 to rotate, and the gear 2 311 on the slide tube 310 will drive the rotating plate 502 to rotate through the gear ring 2 503. At the same time, the gear 1 308 rotates through the gear ring 1 8 to drive the rotating ring 7 to rotate, so that the two clamping plates 902 rotate, and the gear diameter and number of teeth of the gear 1 308 and the gear 2 311 are consistent, and the gear diameter and number of teeth of the gear ring 1 8 and the gear ring 2 503 are consistent, so that the rotation speed of the gear ring 1 8 and the gear ring 2 503 is consistent.

[0035] Working principle: When in use, move the pipe fitting 10 to the four clamping claws 508, control the electric telescopic rod 509 to drive the toggle plate 510 to move, so that the toggle plate 510 toggle the sliding tube 506 away from the annular slide groove 511, and make the sliding tube 506 respectively pass through the four hinged rods 507 to make the four clamping claws 508 approach each other to clamp the pipe fitting 10, control the motor three 302 to drive the threaded rod three 303 to rotate to move the movable seat 501, thereby driving the clamped pipe fitting 10 to enter the fixed ring rail 201, and then control the motor one 205 to drive the threaded rod one 206 to rotate to move the toggle ring rail one 203, and the movement of the toggle ring rail one 203 will toggle the two sliders one 906 to move, and when the slider one 906 moves, it drives the clamping plate 902 to approach the pipe fitting 10 through the hinged rod two 905, so that the two clamping plates 902 clamp the fixed pipe fitting 10 to complete the loading operation.

[0036] Then, the motor 208 is controlled to drive the threaded rod 209 to rotate so that the toggle ring rail 211 moves. The toggle ring rail 211 moves through the slider 2 914 to drive the rack 917 to move. The rack 917 moves through the gear 3 912 to drive the rotating column 2 911 to rotate. The rotating column 2 911 drives the rotating column 1 908 to rotate through the belt and the pulley, so that the extrusion ring 6 is deflected. By observing the rotation angle of the pointer 909 on the angle ruler 910, the adjusted angle of the extrusion ring 6 is consistent with the cutting angle of the pipe 10, and the electric lifting rod 407 is controlled to move the gas cutting nozzle 408 to a height suitable for gas cutting the pipe 10, completing the preparation stage.

[0037] Then the motor 4 305 is controlled to drive the rotating rod 306 to rotate. The rotating rod 306 rotates and drives the sliding tube 310 to rotate through the sliding bar 307. The gear 2 311 on the sliding tube 310 drives the rotating plate 502 to rotate through the gear ring 2 503, so that the four clamping claws 508 rotate. The rotating rod 306 rotates and drives the gear 1 308 to rotate. The gear 1 308 rotates and drives the rotating ring 7 to rotate through the gear ring 1 8, so that the two clamping plates 902 rotate, so that the clamped pipe 10 rotates. The two long strips 901 rotate and drive the extrusion ring 6 to rotate. The mounting plate 402 is subjected to the spring tension of the telescopic spring 405, so that the compressed rod 406 always keeps in contact with the extrusion ring 6, so that the cutting operation is completed after the pipe 10 rotates one circle, and the gas cutting nozzle 408 is perpendicular to the central axis of the pipe 10 and performs an oblique cutting on the pipe 10 along the inclination angle of the extrusion ring 6. When the device performs an oblique cutting on the pipe 10, the gas cutting nozzle 408 can always be perpendicular to the surface of the pipe 10, and the gas cutting nozzle 408 can always maintain a good gas cutting distance from the surface of the pipe 10, so as to maintain the flatness of the cut surface of the pipe 10 after gas cutting.

[0038] Since the four clamping claws 508 will clamp the cut part of the pipe fitting 10, the two clamping plates 902 will clamp the main part of the pipe fitting 10, and the rotation speeds of the tooth ring 1 8 and the tooth ring 2 503 are the same, during the cutting process of the pipe fitting 10, the cut part of the pipe fitting 10 and the main part of the pipe fitting 10 have the same rotation speed. The device can support both the main part and the cut part of the pipe fitting 10, effectively avoiding the bending and deformation of the cut part and the main part of the pipe fitting 10 when the pipe fitting 10 is cut, and can enable the cutting operation to proceed smoothly. After the cutting is completed, the four clamping claws 508 are controlled to first move out the cut part of the pipe fitting 10 and unload the material, and then the four clamping claws 508 are controlled to clamp and move the main part of the pipe fitting 10 between the two clamping plates 902 to complete the unloading operation.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An automatic beveling device for large-diameter pipe fittings, comprising a base (1), characterized in that: A toggle mechanism (2) is arranged above the base (1), the toggle mechanism (2) comprises a fixed ring rail (201) fixed on the upper surface of the base (1), the inner wall of the fixed ring rail (201) is rotatably connected to a rotating ring (7), an extrusion ring (6) is arranged on the right side of the rotating ring (7), and two symmetrical adjustment mechanisms (9) are arranged inside the rotating ring (7), the adjustment mechanism (9) comprises a long strip plate (901) fixed on the inner wall of the rotating ring (7) and a rotating column (908) fixed on the inner wall of the extrusion ring (6), the rotating column (908) is rotatably connected to the long strip plate (901), and the end of the long strip plate (901) away from the extrusion ring (6) is rotatably connected to a rotating column (911), and the rotating column (911) is connected to the rotating column (908) via a belt and a pulley transmission; A gas cutting mechanism (4) is arranged above the fixed ring rail (201), the gas cutting mechanism (4) comprising a mounting plate (402), an electric lifting rod (407) is fixed to the outer surface of the mounting plate (402), a gas cutting nozzle (408) is fixed to the telescopic end of the electric lifting rod (407), and a pressure rod (406) is fixed below the mounting plate (402), the pressure rod (406) is in contact with an extrusion ring (6); A clamping mechanism (5) is arranged on the right side of the fixed ring rail (201), and the clamping mechanism (5) comprises a movable seat (501) and four clamping claws (508). An annular slide groove (511) is fixed on the upper surface of the movable seat (501), and a rotating plate (502) is rotatably connected to the inner wall of the annular slide groove (511), and four groups of limiting rods (504) in a circular array are fixed on the outer surface of the rotating plate (502), and each group of limiting rods (504) has two limiting rods (504). The four groups of limiting rods (504) are slidably connected to the four clamping claws (508) respectively. A driving mechanism (3) for moving the movable seat (501) is arranged on the right side of the base (1).

2. According to claim 1, the automatic beveling device for large-diameter pipes is characterized by: The adjustment mechanism (9) further comprises a clamping plate (902), the outer surface of which is fixed with two limiting rods (903), the two limiting rods (903) both pass through the long plate (901) and are slidably connected to the long plate (901), a hinge plate (904) is arranged outside the long plate (901), the two limiting rods (903) are both fixed to the hinge plate (904), the outer surface of the hinge plate (904) is hinged with a hinge rod (905), the end of the hinge rod (905) away from the hinge plate (904) is hinged with a slider (906), the outer surface of the long plate (901) is fixed with a straight slide groove (907), the slider (906) is slidably connected to the inner wall of the straight slide groove (907).

3. The large-diameter pipe automatic cutting device according to claim 1 is characterized by: A pointer (909) is fixed on the outer surface of the rotating column 1 (908), an angle ruler (910) matched with the pointer (909) is fixed on the outer surface of the long plate (901), a gear 3 (912) is fixed on the outer surface of the rotating column 2 (911), and the adjustment mechanism (9) further comprises a connecting plate (913), a rack (917) is fixed on the outer surface of the connecting plate (913), the rack (917) is meshed with the gear 3 (912), a limiting rod 7 (916) is fixed on the outer surface of the connecting plate (913), a limiting tube 2 (915) is fixed on the outer surface of the long plate (901), the limiting tube 2 (915) is slidably connected to the limiting rod 7 (916), and a slider 2 (914) is fixed on one end of the connecting plate (913).

4. The large-diameter pipe automatic cutting device according to claim 2 is characterized by: The toggle mechanism (2) further comprises an toggle ring rail (203); a motor (205) is fixed to the bottom of the base (1); a threaded rod (206) is fixed to the output end of the motor (205); a bracket (204) is fixed to the outer surface of the base (1); an end of the threaded rod (206) away from the motor (205) is rotatably connected to the bracket (204); the threaded rod (206) is threadedly connected to the toggle ring rail (203); two limit rods (202) are fixed to the outer surface of the fixed ring rail (201); the two limit rods (202) are both slidably connected to the toggle ring rail (203); and the two sliders (906) are both slidably connected to the inner wall of the toggle ring rail (203).

5. The automatic beveling device for large-diameter pipes according to claim 3 is characterized by: The toggle mechanism (2) further comprises a bracket (207), a motor (208) being fixed on the outer surface of the bracket (207), a threaded rod (209) being fixed to the output end of the motor (208), a toggle ring rail (211) being threadedly connected to the outer surface of the threaded rod (209), two limit rods (210) being fixed above the bracket (207), both limit rods (210) being slidably connected to the toggle ring rail (211), and both sliders (914) being slidably connected to the inner wall of the toggle ring rail (211).

6. The large-diameter pipe automatic beveling device according to claim 1 is characterized by: The gas cutting mechanism (4) further comprises a fixed plate (401) fixed above the fixed ring rail (201); two sliding rods (403) are fixed on the outer surface of the mounting plate (402); the two sliding rods (403) both penetrate the fixed plate (401) and are slidably connected to the fixed plate (401); a movable plate (404) is arranged on the left side of the fixed plate (401); the two sliding rods (403) are both fixed to the movable plate (404); and a telescopic spring (405) is fixed between the movable plate (404) and the fixed plate (401).

7. The large-diameter pipe automatic beveling device according to claim 1 is characterized by: A limit rod five (505) is fixed on the outer surface of the rotating plate (502); the outer surface of the limit rod five (505) is slidably connected to a sliding tube (506); the outer surface of the sliding tube (506) is hinged with four hinge rods one (507); the four hinge rods one (507) are respectively hinged to four clamping claws (508); an electric telescopic rod (509) is fixed above the annular slide groove (511); a toggle plate (510) is fixed to the telescopic end of the electric telescopic rod (509); and the sliding tube (506) is rotatably connected to the toggle plate (510).

8. The large-diameter pipe automatic beveling device according to claim 1 is characterized by: The driving mechanism (3) comprises a base (301) fixed to the right side of the pedestal (1); a motor three (302) is fixed to the outer surface of the base (301); a threaded rod three (303) is fixed to the output end of the motor three (302); the threaded rod three (303) is rotatably connected to the base (301); the threaded rod three (303) is threadedly connected to the movable seat (501); two limit rods three (304) are fixed to the upper surface of the base (301); the two limit rods three (304) are both slidably connected to the movable seat (501).

9. The large-diameter pipe automatic beveling device according to claim 8, characterized in that: A motor four (305) is fixed above the motor three (302), a rotating rod (306) is fixed to the output end of the motor four (305), the rotating rod (306) is rotatably connected to the base (301), a gear one (308) is fixed to the end of the rotating rod (306) away from the motor four (305), a limit tube one (309) is fixed to the bottom of the base (1), the limit tube one (309) is rotatably connected to the rotating rod (306), and a gear ring one (8) is fixed to the outer surface of the rotating ring (7), and the gear ring one (8) is meshed with the gear one (308).

10. The automatic beveling device for large-diameter pipes according to claim 9, characterized in that: The outer surface of the rotating rod (306) is slidably connected to a sliding tube (310), the sliding tube (310) penetrates the outer surface of the movable seat (501) and is rotatably connected to the movable seat (501), two sliding bars (307) are fixed to the outer surface of the rotating rod (306), both of the two sliding bars (307) are slidably connected to the sliding tube (310), a second gear (311) is fixed to the outer surface of the sliding tube (310), and a second gear ring (503) is fixed to the outer surface of the rotating plate (502), and the second gear ring (503) is meshed with the second gear (311).

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