Pipe polishing and cutting all-in-one machine and using method thereof

Abstract

The invention relates to a pipe polishing and cutting all-in-one machine and a using method thereof.The pipe polishing and cutting all-in-one machine comprises a main machine frame and a main cutting machine installed on the main machine frame, a plurality of supporting wheels for supporting pipes are installed on the main machine frame, and the pipe polishing and cutting all-in-one machine further comprises a grinding belt rotationally arranged on the main machine frame and a driving device for driving the grinding belt to rotate; the grinding belt is located below the main cutting machine, the grinding belt is tangent to a pipe, the pipe is installed between a cutting blade of the main cutting machine and the grinding belt, outer polishing devices are installed at the left end and the right end of the main machine frame respectively, and each outer polishing device comprises a polishing installation plate hinged to the main machine frame. A polishing machine located above the pipe is installed on the polishing installation plate, a polishing push cylinder is hinged to the main machine frame, and the movable end of the polishing push cylinder is hinged to the polishing installation plate. According to the pipe cutting device, the outer surface of a pipe can be ground and polished while the pipe is cut, so that the workload of workers is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of heat exchanger tube processing, especially to the field of heat exchanger tube cutting and grinding, and specifically refers to a pipe polishing and cutting integrated machine and its using method. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in many industrial productions such as chemical industry, petroleum, power, food, etc. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, reboilers, etc., and are widely used. Heat exchangers can be classified into: shell-and-tube heat exchangers, regenerative heat exchangers, fluid-connected indirect heat exchangers, direct contact heat exchangers, compound heat exchangers, etc. according to the heat transfer principle.

[0003] The structure of a shell-and-tube heat exchanger mainly includes a shell, a tube bundle, tube sheets, supports, a shell and seals. The tube bundle is composed of a group of parallel steel pipes and is the core part of the heat exchanger. Both ends of the tube bundle need to be welded to the tube sheets, and argon arc welding is required for welding the tube bundle and the tube sheets. Argon arc welding has high requirements for the smoothness of the metal surface. In order to ensure the sufficient firmness of the welding between the tube bundle and the tube sheets, it is necessary to polish the outer surfaces of both ends of the steel pipes to remove burrs and oxides on the steel pipe surfaces.

[0004] In the prior art, after the heat exchanger steel pipes are cut, workers use sandpaper to polish the outer surfaces of both ends of the heat exchanger steel pipes manually. This method is time-consuming and laborious, which greatly affects the work efficiency. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a pipe polishing and cutting integrated machine and its using method, which can complete the grinding and polishing treatment of the outer surface of the pipe while cutting the pipe, thereby reducing the workload of workers and improving the production efficiency.

[0006] The present invention is realized through the following technical solutions. A pipe polishing and cutting integrated machine is provided, including a main frame and a main cutting machine installed on the main frame. A number of support wheels for supporting the pipe are installed on the main frame. It also includes a grinding belt rotatably arranged on the main frame and a driving device for driving the grinding belt to rotate. The grinding belt is located below the main cutting machine, the pipe is supported on the grinding belt, and the pipe is installed between the cutting blade of the main cutting machine and the grinding belt.

[0007] In the present invention, a support wheel is provided for installing the pipe. The support wheel supports the pipe while not interfering with the self-rotation of the pipe. The abrasive belt is located below the pipe, and the rotating abrasive belt polishes the pipe. There is a frictional force between the abrasive belt and the pipe. Under the downward pressing of the cutting blade of the main cutting machine, the pipe presses against the abrasive belt, and the frictional force between the abrasive belt and the pipe increases, so that the abrasive belt drives the pipe to rotate. While the cutting blade cuts the pipe, the rotation of the cutting blade affects the self-rotation of the pipe, resulting in a speed difference between the pipe and the abrasive belt, so that the abrasive belt polishes the entire outer surface of the cutting part of the pipe.

[0008] As an optimization, outer polishing devices are respectively installed at the left and right ends of the main frame. The outer polishing device includes a polishing mounting plate hinged to the main frame. A polishing machine located above the pipe is installed on the polishing mounting plate. A polishing push cylinder is hinged to the main frame, and the movable end of the polishing push cylinder is hinged to the polishing mounting plate. With the setting of this optimized scheme, the left and right ends of the pipe can be polished.

[0009] As an optimization, a rotating plate is hinged to the main frame, and the main cutting machine is installed on the rotating plate. A main push cylinder is hinged to the main frame, and the movable end of the main push cylinder is hinged to the front end of the rotating plate. With the setting of this optimized scheme, the telescopic movement of the movable end of the main push cylinder drives the rotating plate hinged to the main frame to rotate up and down, so that the rotating plate drives the main cutting machine to cut the pipe.

[0010] As an optimization, the driving device includes a driving wheel installed on the main frame. The driving wheel is connected to a driven wheel installed on the main frame through an abrasive belt. A vertically extending support plate is fixedly connected to the main frame. A tensioning wheel adjusting plate is hinged to the support plate. An adjusting plate spring is fixedly connected to the tensioning wheel adjusting plate. A tensioning wheel tangent to the abrasive belt is installed on the tensioning wheel adjusting plate. With the setting of this optimized scheme, the rotation of the driving wheel drives the rotation of the abrasive belt, and the tensioning wheel is set to tension the abrasive belt to make the abrasive belt rotate smoothly.

[0011] As an optimization, a waste material push cylinder extending forward and backward is installed at the left end of the main frame. The movable end of the waste material push cylinder is fixedly connected to a waste material cutting machine, and the waste material cutting machine is slidably connected to the main frame. With the setting of this optimized scheme, the excess part of the pipe can be cut to make the pipe meet the length of two heat exchanger steel pipes.

[0012] As an optimization, clamping devices are respectively fixedly connected to the left and right ends of the main frame. The clamping devices are located inside the outer polishing devices. The clamping device includes a clamping mounting plate hinged to the main frame. A clamping wheel opposite to the support wheel is installed at the rear end of the clamping mounting plate. A clamping push cylinder is hinged to the main frame, and the movable end of the clamping push cylinder is hinged to the clamping mounting plate. With the setting of this optimized scheme, the pipe can be clamped to prevent the pipe from falling off the support wheel.

[0013] As an optimization, a secondary frame is fixedly connected to the rear end of the main frame. A material transfer device extending to the support wheels is installed on the secondary frame. The material transfer device includes a material transfer shaft rotatably connected to the secondary frame. The material transfer shaft is vertically fixedly connected with a material transfer rod extending to the support wheels. A material transfer groove plate is fixedly connected to the material transfer shaft. The material transfer rod is connected to a rotating rod through a chain drive. The rotating rod is hinged with a material transfer push cylinder, and the material transfer push cylinder is hinged to the secondary frame. With this optimized solution, the pipes can be taken one by one, and the pipes are transferred from the secondary frame to the support wheels on the main frame.

[0014] As an optimization, a material storage device is installed on the secondary frame. The material storage device includes a baffle shaft rotatably connected to the secondary frame. A baffle is fixedly connected to the baffle shaft. A material storage push cylinder is hinged to the baffle, and the material storage push cylinder is hinged to the secondary frame. With this optimized solution, the pipes stacked on the secondary frame can be placed in a row on the secondary frame.

[0015] As an optimization, a feeding push cylinder is installed at the left end of the main frame, and a top plate is installed at the right end of the main frame. The pipe is located between the feeding push cylinder and the top plate. With this optimized solution, the pipe can be pushed, so that the pipe is pressed tightly against the top plate, and the pipe enters the correct position for cutting.

[0016] This solution also provides a use method of the above-mentioned pipe polishing cutting machine, including the following steps: a: Place the pipe on the material storage device of the secondary frame. The material storage push cylinder contracts, and the baffle rotates. As the height of the baffle continuously decreases, the pipes fall one by one onto the secondary frame at the front end of the material storage device; b: The pipe rolls onto the material transfer groove plate. The material transfer push cylinder acts, driving the material transfer rod and the material transfer groove plate to rotate, so that the pipe falls onto the material transfer rod and rolls forward on the material transfer rod to the support wheels; c: The feeding push cylinder pushes the pipe, so that the pipe is pressed tightly against the top plate. The clamping push cylinder acts, driving the clamping mounting plate to rotate, so that the clamping wheels clamp the pipe; d: The waste material push cylinder pushes the waste material cutting machine to slide on the main frame, and the waste material cutting machine completes the cutting of the redundant part at the left end of the pipe.

[0017] e: Perform the outer polishing operation, so that the polishing machine starts to polish the two ends of the pipe. The driving wheel rotates, driving the abrasive belt to rotate. The lower end of the pipe is polished by the abrasive belt. The main push cylinder operates, so that the main cutting machine continuously presses down. The main cutting machine contacts the pipe and cuts and presses down on the pipe. Under the dual action of the main cutting machine and the abrasive belt, the pipe is driven to rotate and the rotation speed of the pipe is not synchronized with the rotation speed of the abrasive belt, so that the outer surface of the pipe is polished by the abrasive belt, and the main cutting machine continuously presses down to complete the cutting of the pipe; f: The clamping push cylinder operates to loosen the clamping of the pipe, and the pipe push cylinder operates to push the pipe off the support wheels.

[0018] The beneficial effects of the present invention are as follows: The present invention can cut the pipe, so that the pipe is cut into two sections of heat exchanger steel pipes. While the pipe is being cut, the outer surface of the welding part of the pipe can be polished. The polishing and cutting are carried out simultaneously, which greatly saves manpower and time. The abrasive belt can polish the middle cutting part of the pipe, and the external polishing device can polish the left and right ends of the pipe, so that the pipe is polished and cut into two sections of steel pipes that meet the requirements. The present invention is provided with sensors on each mechanism, so that the present invention can complete automatic feeding, automatic polishing and cutting, and automatically push the polished and cut pipe down the support wheel, making the present invention more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 partial enlarged view of the polishing and cutting mechanism; Figure 3 is a schematic structural diagram of the polishing and cutting mechanism; Figure 4 is a schematic installation diagram of the clamping mechanism; Figure 5 is a schematic structural diagram of the feeding mechanism; Figure 6 is a diagram showing the installation of the abrasive belt; As shown in the figure: 1. Main frame, 2. Feeding push cylinder, 3. Remnant material cutter sensor, 4. Remnant material cutting machine, 5. Remnant material push cylinder, 6. External polishing support, 7. External polishing device, 71. Polishing mounting plate, 72. Polishing machine, 8. Polishing push cylinder, 9. Clamping device, 91. Clamping mounting plate, 92. Clamping wheel, 10. Clamping push cylinder, 11. Pipe sensor, 12. Support wheel, 13. Pipe push cylinder, 14. Base, 15. Rotating plate, 16. Driving wheel motor, 17. Driving wheel, 18. Tensioning wheel adjusting plate, 19. Tensioning wheel, 20. Abrasive belt, 21. Adjusting plate spring, 22. Main cutting machine, 23. Driving wheel, 24. Driven wheel, 25. Top plate, 26. Pressure sensor, 27. Sub-frame, 28. Material conveying device, 281. Material conveying shaft, 282. Material conveying rod, 283. Material conveying trough plate, 284. Upper gear, 285. Chain, 286. Lower gear, 287. Rotating rod, 288. Material conveying push cylinder, 29. Stockpiling device, 291. Baffle rotating shaft, 292. Baffle, 293. Stockpiling push cylinder, 30. Guide block, 31. Arc support, 32. Support plate, 33. Cutting sensor, 34. Main push cylinder, 35. No material sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to clearly illustrate the technical features of the present solution, the present solution will be described below through specific embodiments.

[0021] As Figures 1 to 6 shown, a pipe polishing and cutting integrated machine of the present invention includes a main frame 1. A plurality of supporting wheels 12 for supporting pipes are installed on the main frame 1. The main frame 1 extends in the left - right direction. The supporting wheel 12 includes a wheel plate fixed to the upper end face of the main frame 1 and a rotating wheel rotatably connected to the wheel plate. The supporting wheels 12 are arranged in pairs and extend in the left - right direction. Multiple groups of supporting wheels are arranged in the left - right direction on the main frame 1. The pipe is supported between two supporting wheels 12, and the pipe is tangent to the supporting wheels 12. A pair of supporting wheels 12 are respectively arranged at the left and right ends of the main frame.

[0022] A base 14 is fixedly connected to the front end of the main frame. The base 14 extends in the front - rear direction and is located in the middle section of the main frame 1. A polishing and cutting mechanism is installed on the main frame 1. The polishing and cutting mechanism is located at the middle position of the pipe and can cut the pipe into two equal - length sections. The polishing and cutting mechanism includes a rotating plate 15 hinged to the main frame 1. The rotating plate 15 extends in the front - rear direction. An arc - shaped support 31 extending vertically is fixedly connected to the base 14. A horizontal - axis through - hole is provided on the arc - shaped support 31. A horizontal axis is fixedly connected to the rotating plate 15, and the horizontal axis is rotatably connected in the horizontal - axis through - hole, so that the rotating plate 15 is hinged to the arc - shaped support 31 through the horizontal axis. The rotating plate 15 is fixedly connected with a guiding block 30 tangent to the arc - shaped support 31. The guiding block 30 is circular. When the rotating plate 15 rotates, the guiding block 30 can play a guiding and limiting role.

[0023] The polishing and cutting mechanism further includes a main cutting machine 22 installed on the main frame 1. The main cutting machine 22 is installed on the rotating plate 15 and is located above the supporting wheels 12. The main cutting machine 22 is fixedly connected to the front end of the rotating plate 15. A main pushing cylinder 34 is hinged to the main frame 1. The main pushing cylinder 34 extends in the up - down direction. The movable end of the main pushing cylinder 34 is hinged to the front end of the rotating plate 15. The arc - shaped support 31 is located between the main pushing cylinder 34 and the main cutting machine 22. The lower end of the main pushing cylinder 34 is hinged to the base 14. Through the connection of the movable end of the main pushing cylinder 34 with the rotating plate 15, the lower end of the main pushing cylinder 34 with the main frame 1, and the functions of the arc - shaped support 31 and the guiding block 30, the main cutting machine 22 can smoothly descend along a specified route to cut the pipe.

[0024] This embodiment also includes a grinding belt 20 that is rotatably arranged on the main frame 1 and a driving device that drives the grinding belt 20 to rotate. The grinding belt 20 is located below the main cutting machine 22, and the pipe is supported on the grinding belt 20. When the pipe is placed on the grinding belt, due to the gravity of the pipe and other pressures, the grinding belt 20 will form a depression, and the grinding belt 20 will fit tightly against the pipe. The driving device includes a driving wheel 17 installed on the main frame 1, a driving wheel motor 16 is fixedly connected to the base 14, the driving wheel motor 16 is connected to the driving wheel 17 in transmission, the driving wheel 17 is connected to the driven wheel 24 through the frosting belt 20, the driven wheel 24 is installed on the main frame 1, the frosting belt 20 extends in the front and rear directions, the outer end surface of the frosting belt 20 is in contact with the pipe, the outer end surface of the frosting belt 20 can polish the steel pipe, the pipe is installed between the cutting blade of the main cutting machine 22 and the frosting belt 20, a transmission wheel 23 is arranged between the driving wheel 17 and the driven wheel 24, the transmission wheel 23 supports and conducts the frosting belt 20, the transmission wheel 23 is installed on the main frame 1, a pair of support wheels 12 are arranged between the driving wheel 17 and the driven wheel 24, and the transmission wheel 23 is located in front of this group of support wheels 12.

[0025] A support plate 32 extending up and down is fixedly connected to the main frame 1, and the support plate 32 is fixedly connected to the base 14. The support plate 32 is located behind the arc-shaped support 31. The support plate 32 can also play a limiting and guiding role for the rear half of the rotating plate 15. A tensioning wheel adjustment plate 18 is hinged on the support plate 32, and the tensioning wheel adjustment plate 18 extends in the front and rear directions. A tensioning wheel 19 adapted to the frosting belt 20 is installed on the tensioning wheel adjustment plate 18, and the tensioning wheel 19 is located above the frosting belt 20. An adjusting plate spring 21 is fixedly connected to the tensioning wheel adjustment plate 18. The pressure of the tensioning wheel adjustment plate 18 on the frosting belt 20 can be adjusted by rotating the adjusting plate spring 21. The frosting belt 20 passes through the driving wheel 17, the tensioning wheel 19, the transmission wheel 23, the support wheel 12 and the driven wheel 24 in sequence.

[0026] An external polishing device 7 is respectively installed on the left and right ends of the main frame 1, and the external polishing device includes a polishing mounting plate 71 hinged to the main frame 1. An external polishing support 6 extending up and down is fixedly connected to the main frame 1. Polishing plate shafts are fixedly connected to the left and right ends of the polishing mounting plate 71, and the polishing plate shaft is rotatably connected to the external polishing support 6, so that the polishing mounting plate 71 is hinged to the external polishing support 6. A polishing push cylinder 8 is hinged on the main frame, and the movable end of the polishing push cylinder 8 is hinged to the polishing mounting plate 71. The polishing push cylinder 8 extends in the up and down direction. A polishing machine 72 located above the pipe is installed on the polishing mounting plate 71. The polishing machine 72 is located at the front end of the polishing mounting plate 71, and the polishing push cylinder 8 is located between the polishing machine 72 and the external polishing support 6. The polishing machine 72 is a prior art and can grind and polish the outer surface of the steel pipe.

[0027] Clamping devices 9 are fixedly connected to the left and right ends of the main frame 1 respectively. The clamping devices 9 are located inside the external polishing device 7. Here, "inside" refers to the side close to the polishing and cutting mechanism. The clamping device 9 includes a clamping mounting plate 91 hinged to the main frame 1. A clamping wheel 92 opposite to the support wheel 12 is installed at the rear end of the clamping mounting plate 91. There are two clamping wheels 92. The pipe is installed between the support wheel 12 and the clamping wheel 92. The clamping wheel 92 and the support wheel 12 are arranged in a staggered manner. The outer end of the clamping wheel 92 is located inside the outer end of the support wheel 12, and the inner end of the clamping wheel 92 is located inside the inner end of the support wheel 12. A clamping push cylinder 10 is hinged to the main frame 1. The clamping push cylinder 10 extends in the up and down direction, and the movable end of the clamping push cylinder 10 is hinged to the clamping mounting plate 91.

[0028] A feeding push cylinder 2 is installed at the left end of the main frame 1. The feeding push cylinder 2 extends in the left and right direction, and the movable end of the feeding push cylinder 2 can push the steel pipe to move left and right. A top plate 25 is installed at the right end of the main frame. The feeding push cylinder 2 is located on the left side of the left external polishing device 7, and the top plate 25 is located on the right side of the right external polishing device 7. The pipe is located between the feeding push cylinder 2 and the top plate 25.

[0029] A waste material push cylinder 5 extending in the front and rear direction is installed at the left end of the main frame 1. The waste material push cylinder 5 extends in the front and rear direction. The movable end of the waste material push cylinder 5 is fixedly connected to a waste material cutting machine 4. The waste material cutting machine 4 is slidably connected to the main frame 1. The waste material cutting machine 4 is arranged in cooperation with the pipe. The waste material cutting machine 4 is located on the left side of the left external polishing device 7.

[0030] A sub-frame 27 is fixedly connected to the rear end of the main frame 1. A material transfer device 28 extending to the support wheel 12 is installed on the sub-frame 27. The material transfer device 28 includes a material transfer shaft 281 rotatably connected to the sub-frame 27. The material transfer shaft 281 extends in the left and right direction. The material transfer shaft 281 is vertically fixedly connected with a material transfer rod 282 extending to the support wheel 12. There are multiple material transfer rods 282. The pipe on the material transfer rod 282 can roll onto the support wheel 12. A material transfer groove plate 283 is fixedly connected to the material transfer shaft 281. The material transfer groove plate 283 and the material transfer rod 282 form a certain angle, and the required angle is adjusted according to the actual situation. Single-pipe grooves are provided on the material transfer groove plate 283, and the single-pipe grooves are adapted to the pipe.

[0031] The material transfer rod 282 is drivingly connected to a rotating rod 287 through a chain 285. The right end of the material transfer shaft 281 is fixedly connected to an upper gear 284. The lower end of the right end face of the auxiliary frame 27 is rotatably connected to a lower gear 286. The upper gear 284 is drivingly connected to the lower gear 286 through a chain 285. The rotating rod 287 is fixedly connected to the lower gear 286, so that the material transfer rod 282 is drivingly connected to the rotating rod 287. The rotating rod 287 is hinged to a material transfer push cylinder 288. The material transfer push cylinder 288 is hinged to the auxiliary frame 27. The angle between the rotating rod 287 and the material transfer rod 282 and the angle at which the material transfer push cylinder 288 is installed on the auxiliary frame need to be adjusted during installation, so that when the material transfer push cylinder 288 pushes the rotating rod 287 to rotate, the material transfer rod 282 can finally fall onto the main frame 1.

[0032] The auxiliary frame 27 is inclined. The height of the rear end of the auxiliary frame 27 is greater than the height of the front end. The height of the auxiliary frame 27 is greater than the height of the main frame 1. This facility facilitates the rolling of the pipe towards the main frame 1. The rear end of the auxiliary frame 27 is fixedly connected with a number of rear blocking rods extending upwards. The rear blocking rods can limit the position of the pipe and prevent the pipe from falling from the rear end of the auxiliary frame 27. A material storage device 29 is installed on the auxiliary frame 27. The material storage device 29 includes a baffle shaft 297 rotatably connected to the auxiliary frame 27. The baffle shaft 297 extends in the left-right direction. A baffle 292 is fixedly connected to the baffle shaft 297. The baffle 292 extends upwards. The transported pipe can be placed on the auxiliary frame 27 between the baffle 292 and the rear blocking rods. A material storage push cylinder 293 is hinged to the baffle 292. The material storage push cylinder 293 is hinged to the auxiliary frame 27.

[0033] A number of pipe push cylinders 13 are installed on the main frame 1. The pipe push cylinders 13 extend in the front-rear direction. The pipe push cylinders 13 are located in front of the pipes. There are two pipe push cylinders 13, and the two pipe push cylinders 13 are respectively located on the left and right sides of the polishing and cutting mechanism.

[0034] This embodiment further includes a number of sensors installed on the main frame 1 and cooperating with each mechanism respectively. A pipe sensor 11 extending in the front-back direction is fixedly connected to the upper end surface of the main frame 1. The pipe sensor 11 is arranged in cooperation with the pipe. When the pipe slides onto the support wheel 12, the pipe will touch the pipe sensor 11. The pipe sensor 11 is electrically connected to the feeding push cylinder 2. A pressure sensor 26 is fixedly connected to the right side of the top plate 25. The top plate 25 is rotatably connected to the main frame. When the pipe abuts against the top plate, it will cause the top plate to rotate slightly and press the pressure sensor 26. The pressure sensor 26 is electrically connected to the clamping push cylinder 10. A clamping sensor cooperating with the clamping device 9 is arranged on the main frame 1. The clamping sensor is electrically connected to the residue cutting machine 4 and the residue push cylinder 5 respectively. A residue cutting sensor 3 extending left and right and cooperating with the residue cutting machine 4 is fixedly connected to the main frame 1. The residue cutting sensor 3 is electrically connected to the polishing push cylinder 8, the polishing machine 72, the driving wheel motor 16, the main cutting machine 22, and the main push cylinder 34 respectively. A cutting sensor 33 cooperating with the rotating plate 15 is installed on the main frame 1. The cutting sensor 33 is electrically connected to the pipe push cylinder 13. A no-material sensor 35 is installed on the main frame. The no-material sensor 35 is electrically connected to the material transfer push cylinder 288.

[0035] During the use of this embodiment, first place the pipes on the storage device 29 of the auxiliary frame 27. The storage push cylinder 293 contracts, and the baffle 292 rotates. As the height of the baffle 292 continuously decreases, the pipes fall into the auxiliary frame 27 at the front end of the storage device 29 one by one. The pipes roll onto the material transfer trough plate 283. When feeding is required, the material transfer push cylinder 288 acts to drive the rotating rod 287 to rotate. The rotation of the rotating rod 287 drives the lower gear 286 to rotate. The lower gear 286 drives the upper gear 284 to rotate through the chain 285. The upper gear 284 drives the material transfer shaft 281 to rotate. The material transfer shaft 281 drives the material transfer rod 282 and the material transfer trough plate 283 to rotate, so that one pipe on the material transfer trough plate 283 falls onto the material transfer rod 282 and rolls forward on the material transfer rod 282 to the support wheel 12.

[0036] The pipe sensor 11 senses the pipe and transmits the signal to the feeding push cylinder 2. The feeding push cylinder 2 pushes the pipe to make the pipe abut tightly against the top plate 25. The top plate 25 rotates slightly backward and presses the pressure sensor 26 tightly. The pressure sensor 26 transmits the signal to the clamping push cylinder 10. The clamping push cylinder 10 acts to drive the clamping mounting plate 91 to rotate, so that the clamping wheel 92 clamps the pipe tightly. The clamping sensor senses the signal and transmits the signal to the residue push cylinder 5 and the residue cutting machine 4. The residue push cylinder 5 pushes the residue cutting machine 4 to slide forward. The residue push cylinder 5 pushes the residue cutting machine 4 to slide on the main frame 1. The residue cutting machine 4 completes the cutting of the redundant part at the left end of the pipe.

[0037] The surplus material cutting machine 4 touches the surplus material cutting tool inductor 3, and the surplus material cutting machine 4 stops cutting and slides back. The external polishing push cylinder 8 operates, and the polishing machine 72 rotates to a suitable position to start grinding and polishing both ends of the pipe. The driving wheel motor 16 and the main push cylinder 34 receive signals and start operating. The driving wheel motor 16 drives the driving wheel 17 to rotate, and the driving wheel 17 drives the abrasive belt 20 to rotate. The lower end of the pipe is ground and polished by the abrasive belt 20. The main push cylinder 34 operates to continuously press down the main cutting machine 22. The main cutting machine 22 contacts the pipe and cuts and presses down the pipe. Under the dual action of the main cutting machine 22 and the abrasive belt 20, the pipe is driven to rotate and the rotation speed of the pipe is not synchronized with the rotation speed of the abrasive belt 20, so that the outer surface of the pipe is ground and polished by the abrasive belt 20. The main cutting machine 22 continuously presses down to complete the cutting of the pipe.

[0038] As the main cutting machine 22 continuously presses down, the pipe is cut in half. The cutting inductor 33 senses the signal, the main cutting machine 22 stops operating and is lifted by the main push cylinder 34. The clamping push cylinder 10 operates to release the clamping of the pipe. The pipe push cylinder 13 operates to push the pipe off the support wheel 12. When the no-material inductor 35 senses that there is no pipe on the support wheel 12, it transmits a signal to the material transfer push cylinder 288, and the material transfer push cylinder 288 operates to perform the next round of pipe loading, grinding, and cutting.

[0039] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or adopted the existing technologies, which will not be elaborated here. The above embodiments and the drawings are only used to illustrate the technical solutions of the present invention and are not a limitation to the present invention. The present invention has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that the changes, modifications, additions, or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention do not depart from the purpose of the present invention and should also fall within the protection scope of the claims of the present invention.

Claims

1. A pipe polishing and cutting integrated machine, characterized in that: The invention comprises a main frame (1) and a main cutting machine (22) mounted on the main frame (1), wherein a plurality of supporting wheels (12) for supporting pipes are mounted on the main frame (1), and further comprises a grinding belt (20) rotatably arranged on the main frame (1) and a driving device for driving the grinding belt (20) to rotate, wherein the grinding belt (20) is located below the main cutting machine (22), the pipes are supported on the grinding belt (20), and the pipes are mounted between the cutting blade of the main cutting machine (22) and the grinding belt (20).

2. The integrated pipe polishing and cutting machine according to claim 1, characterized in that: External polishing devices (7) are respectively installed at the left and right ends of the main frame (1), and the external polishing devices include a polishing mounting plate (71) hinged to the main frame (1), and a polishing machine (72) located above the pipe is installed on the polishing mounting plate (71). A polishing push cylinder (8) is hinged to the main frame, and a movable end of the polishing push cylinder (8) is hinged to the polishing mounting plate (71).

3. A pipe polishing and cutting integrated machine according to claim 1, characterized in that: A rotating plate (15) is hingedly connected to the main frame (1), and a main cutting machine (22) is mounted on the rotating plate (15). A main push cylinder (34) is hingedly connected to the main frame (1), and a movable end of the main push cylinder (34) is hingedly connected to a front end of the rotating plate (15).

4. A pipe polishing and cutting integrated machine according to claim 1, characterized in that: The driving device comprises a driving wheel (17) mounted on a main frame (1), the driving wheel (17) being drivingly connected to a driven wheel (24) mounted on the main frame (1) via a grinding belt (20), a support plate (32) extending up and down being fixedly connected to the main frame (1), a tensioning wheel adjustment plate (18) being hingedly connected to the support plate (32), an adjustment plate spring (21) being fixedly connected to the tensioning wheel adjustment plate (18), and a tensioning wheel (19) tangential to the grinding belt (20) being mounted on the tensioning wheel adjustment plate (18).

5. A pipe polishing and cutting integrated machine according to claim 1, characterized in that: A residual material pushing cylinder (5) extending forward and backward is installed at the left end of the main frame, and a residual material cutting machine (4) is fixedly connected to the movable end of the residual material pushing cylinder (5), and the residual material cutting machine (4) is slidably connected to the main frame (1).

6. A pipe polishing and cutting integrated machine according to claim 1, characterized in that: The left and right ends of the main frame (1) are respectively fixedly connected with clamping devices (9), the clamping device (9) is located on the inner side of the outer polishing device (7), the clamping device (9) comprises a clamping mounting plate (91) hinged to the main frame (1), a clamping wheel (92) opposite to the supporting wheel (12) is mounted at the rear end of the clamping mounting plate (91), and a clamping push cylinder (10) is hinged to the main frame (1), and a movable end of the clamping push cylinder (10) is hinged to the clamping mounting plate (91).

7. A pipe polishing and cutting integrated machine according to claim 1, characterized in that: A sub-frame (27) is fixedly connected to the rear end of the main frame, a material transfer device (28) extending to the support wheel (12) is mounted on the sub-frame (27), the material transfer device (28) comprises a material transfer shaft (281) rotatably connected to the sub-frame (27), a material transfer rod (282) extending to the support wheel (12) is vertically fixedly connected to the material transfer shaft (281), a material transfer trough plate (283) is fixedly connected to the material transfer shaft (281), the material transfer rod (282) is connected to a rotating rod (287) via a chain (285), the rotating rod (287) is hingedly connected to a material transfer push cylinder (288), and the material transfer push cylinder (288) is hingedly connected to the sub-frame (27).

8. A pipe polishing and cutting integrated machine according to claim 7, characterized in that: A stock storage device (29) is installed on the auxiliary frame. The stock storage device (29) includes a baffle shaft (297) rotatably connected to the auxiliary frame (27). A baffle (292) is fixedly connected to the baffle shaft (297). A stock storage push cylinder (293) is hinged to the baffle (292). The stock storage push cylinder (293) is hinged to the auxiliary frame (27).

9. The integrated pipe polishing and cutting machine according to claim 1, wherein: A feeding push cylinder (2) is installed at the left end of the main frame. A top plate (25) is installed at the right end of the main frame. The pipe is located between the feeding push cylinder (2) and the top plate (25).

10. A method of using any one of the pipe polishing cutting machines described in claims 1 to 9, characterized in that, It includes the following steps: a: Place the pipe on the stock storage device (29) of the auxiliary frame (27). The stock storage push cylinder (293) contracts, and the baffle (292) rotates. As the height of the baffle (292) continuously decreases, the pipes fall one by one onto the auxiliary frame (27) at the front end of the stock storage device (29). b: The pipe rolls onto the material transfer trough plate (283). The material transfer push cylinder (288) operates, driving the material transfer rod (282) and the material transfer trough plate (283) to rotate, so that the pipe falls onto the material transfer rod (282) and rolls forward on the material transfer rod (282) to the support wheel (12). c: The feeding push cylinder (2) pushes the pipe to make the pipe press against the top plate (25). The clamping push cylinder (10) operates, driving the clamping mounting plate (91) to rotate, so that the clamping wheel (92) clamps the pipe. d: The waste material push cylinder (5) pushes the waste material cutting machine (4) to slide on the main frame (1). The waste material cutting machine (4) completes the cutting of the redundant part at the left end of the pipe. e: The outer polishing push cylinder (8) operates, causing the polishing machine (72) to start polishing the two ends of the pipe. The driving wheel (17) rotates, driving the abrasive belt (20) to rotate. The lower end of the pipe is polished by the abrasive belt (20). The main push cylinder (34) operates, causing the main cutting machine (22) to continuously press down. The main cutting machine (22) contacts the pipe and cuts and presses down on the pipe. Under the dual action of the main cutting machine (22) and the abrasive belt (20), the pipe is driven to rotate and the rotation speed of the pipe is not synchronized with the rotation speed of the abrasive belt (20), so that the outer surface of the pipe is polished by the abrasive belt (20). The main cutting machine (22) continuously presses down to complete the cutting of the pipe. f: The clamping push cylinder (10) operates to release the clamping of the pipe. The pipe push cylinder (13) operates to push the pipe off the support wheel (12).

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