Automatic metal pipe feeding and cutting device and cutting method

Abstract

The invention discloses a metal pipe automatic feeding cutting device and method, the metal pipe automatic feeding cutting device comprises a surrounding structure, a cutting structure and an impurity removing structure, the surrounding structure comprises an outer ring and an inner ring rotationally installed in the outer ring, a tooth groove is formed in one side of the inner circle of the inner ring in a surrounding mode, and a first gear is engaged with the tooth groove; a first driver is arranged in the center of one side of the first gear, through cooperation of the surrounding structure and the cutting structure, the device can conduct ring cutting on a steel pipe, one-layer and one-side cutting is achieved, burrs generated during straight cutting are avoided, meanwhile, the cutting requirement can be met more accurately, by arranging an impurity removing structure, the cutting efficiency is improved, and the cutting efficiency is improved. According to the metal powder collecting device, metal powder generated during cutting of the device can be collected, the problem that the metal powder flies is solved, meanwhile, exhausted branch air passes through a thinner pipeline to form high-speed gas which directly blows a cutting knife, the cutting knife is helped to be cooled, and the service life of the cutting knife is prolonged.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cutting devices, in particular to a metal pipe automatic feeding cutting device and a cutting method. BACKGROUND

[0002] The metal pipe cutting device is an indispensable key equipment in modern industrial production, and is focused on precise cutting processing of various metal pipes such as steel pipes, copper pipes and aluminum pipes. In the field of mechanical manufacturing, it provides pipe raw materials with accurate specifications for part production, ensures the stability and adaptation of mechanical structures, and for the construction industry, whether it is the steel structure construction of high-rise buildings or the laying of water and electricity pipelines, it relies on it to cut metal pipes into appropriate length and shape. In pipe installation, it can efficiently process pipes of different materials and diameters to ensure the tightness and functionality of the pipe system.

[0003] However, the existing metal pipe cutting device usually adopts a straight cutting method, that is, cutting from top to bottom. When cutting in the straight cutting method, the burr of the steel pipe is generated more, and the burr needs to be processed subsequently, which is extremely inconvenient to use.

[0004] Therefore, it is necessary to provide a metal pipe automatic feeding cutting device and a cutting method to solve the above problems. SUMMARY

[0005] Based on the above problems existing in the prior art, the application aims to provide a metal pipe automatic feeding cutting device and a cutting method. Through the cooperation between the surrounding structure and the cutting structure, the device can realize the cutting of the steel pipe, realize the cutting of one layer and one side, avoid the burr generated when cutting, and also realize the cutting demand more accurately.

[0006] By setting the impurity removal structure, the device can collect the metal powder generated during cutting, avoid the problem of flying metal powder, and at the same time, the exhaust air is discharged through a finer pipeline to form a high-speed gas directly blowing the cutting knife, helping to cool the cutting knife and prolong the service life of the cutting knife.

[0007] By setting the transmission structure, automatic feeding can be realized, and pipes of different sizes can be cut.

[0008] The technical scheme adopted by the application to solve its technical problems is: a metal pipe automatic feeding cutting device and cutting method, comprising a surrounding structure, a cutting structure and a impurity removal structure, the surrounding structure comprises an outer ring and an inner ring rotatably installed inside the outer ring, a gear slot is arranged on one side of the inner ring, and a first gear is engaged on the gear slot, a first driver is arranged at the center of one side of the first gear, the cutting structure comprises a third support installed on the other side of the inner wall of the inner ring, two sliding rods are arranged on one side of the top of the third support, a fourth support is slidably arranged on the outer wall of the two sliding rods, an electric telescopic rod is arranged in the middle of the bottom of the fourth support, a second driver is installed on the top of the fourth support, a cutting knife is installed on the output shaft of the second driver, the impurity removal structure comprises a collection barrel installed on one side of the sliding rod, an air inlet pipe is arranged on the top of the collection barrel, a partition plate is fixedly connected in the collection barrel, a connecting shaft is arranged in the middle of the partition plate, a turbofan is arranged below the collection barrel and on the outer wall of the connecting shaft, and a second transmission ring is installed on the outer wall of the connecting shaft.

[0009] Further, a group of stabilizing blocks are installed on both sides of the outer ring, first legs are fixedly connected to the opposite sides of the two groups of stabilizing blocks, a first support is fixedly connected to the bottom of the first driver, one side of the first support is fixedly connected to the outer ring, and a second support is installed on the bottom of the first support.

[0010] Further, a first helical gear is installed on the output shaft of the second driver, a second helical gear is engaged on one side of the first helical gear, a third helical gear is connected to one side of the second helical gear through a transmission rod, a fourth helical gear is engaged on the bottom of the third helical gear, a first transmission ring is connected to the bottom of the fourth helical gear through a transmission rod, and a transmission belt is arranged on the first transmission ring.

[0011] Further, the other end of the transmission belt is connected to the second transmission ring, a fifth support is installed on the bottom of the collection barrel, an exhaust pipe is installed on one side of the fifth support, and at least one locking block fixedly connected to the third support is installed on the exhaust pipe.

[0012] Further, one side of the surrounding structure is provided with a transmission structure, the transmission structure comprises two second legs, a moving rod is installed at the top between the two second legs, the middle of the stabilizing block is fixedly connected with a positioning block, both sides of the positioning block are provided with a driven sliding plate slidingly installed on the moving rod, the bottom of each of the two driven sliding plates is fixedly connected with a group of driven rods, the bottom of each of the two groups of driven rods is fixedly connected with a driven block, the top of each of the two driven blocks is fixedly connected with a driven wheel, the opposite side of each of the two driven blocks is fixedly installed with a sleeve rod, and the extending shaft of each of the sleeve rods is fixedly connected with a threaded block.

[0013] Further, the top of the positioning block is fixedly connected with a pneumatic telescopic rod, the pressing shaft of the pneumatic telescopic rod extends through the positioning block to the bottom surface of the positioning block, the bottom of the positioning block is installed with a driving wheel, one side of the driving wheel is provided with a driven force transmission rod, the top of the driving wheel is installed with a sixth helical gear, the top of the sixth helical gear is fixedly connected with a telescopic power rod, the top of the telescopic power rod is fixedly connected with a fifth helical gear, one side of the fifth helical gear is engaged with a worm, one side of the worm is provided with a relatively rotatingly connected screw block, and the screw block is fixedly connected with the pneumatic telescopic rod.

[0014] Further, the opposite sides of the threaded rods are installed with eighth helical gears, and one side of the two eighth helical gears is engaged with a seventh helical gear.

[0015] Further, the telescopic power rod is designed in two sections, the bottom section can slide in the top section, the two stabilizing frames connected to the telescopic power rod for auxiliary fixing of the telescopic power rod are rotationally connected with the telescopic power rod, the telescopic power rod is circularly designed at the stabilizing frame connection position, and one side of the stabilizing frame connected to the bottom of the telescopic power rod is fixedly installed with the driven wheel.

[0016] Further, the ends of the worm and the seventh helical gear are installed with driving assemblies, and the transmission structure has at least two driving assemblies.

[0017] The beneficial effects of the present application are:

[0018] The metal pipe automatic feeding and cutting device and the cutting method provided by the present application can realize ring cutting of the steel pipe by cooperation between the surrounding structure and the cutting structure, realize one-layer one-side cutting, avoid burrs generated during straight cutting, and more accurately realize cutting requirements.

[0019] By setting the impurity removal structure, the device can help collect the metal powder generated during cutting, avoid the problem of flying metal powder, and at the same time, the exhaust air is discharged through a finer pipeline to form a high-speed gas directly blowing the cutting knife, helping to cool the cutting knife and prolong the service life of the cutting knife.

[0020] By setting the transmission structure, automatic feeding can be realized, and pipes of different sizes can be cut. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of this application serve to provide further understanding of the present application, the illustrative embodiments of the present application and their descriptions serve to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0022] Figure 1 It is a whole schematic view of a metal pipe automatic feeding cutting device and cutting method in the present application;

[0023] Figure 2 It is a schematic view of the surrounding structure;

[0024] Figure 3 It is a schematic view of the cutting structure;

[0025] Figure 4 It is a schematic view of the cutting structure from the top;

[0026] Figure 5 It is a schematic view of the impurity removal structure;

[0027] Figure 6 It is a schematic view of the transmission structure;

[0028] Figure 7 It is Figure 6 An enlarged schematic view of A in the figure;

[0029] Figure 8 It is Figure 6 An enlarged schematic view of B in the figure;

[0030] Figure 9 It is Figure 6 An enlarged schematic view of C in the figure;

[0031] In the figure, various reference signs:

[0032] 1, Surround structure; 101, First leg; 102, Stabilizing block; 103, Outer ring; 104, Inner ring; 105, First gear; 106, First driver; 107, First support; 108, Second support; 2, Cutting structure; 201, Third support; 202, Slide rod; 203, Fourth support; 204, Second driver; 205, Electric telescopic rod; 207, Cutting knife; 208, First helical gear; 209, Second helical gear; 210, Third helical gear; 211, Fourth helical gear; 212, First transmission ring; 213, Transmission belt; 3, Impurity removal structure; 301, Air inlet pipe; 302, Collection bucket; 303, Isolation plate; 304, Connecting shaft; 305, Vortex fan; 306, Second transmission ring; 307, Exhaust pipe; 308, Fifth support; 309, Locking block; 4, Transmission structure; 401, Second leg; 402, Moving rod; 403, Positioning block; 404, Pneumatic telescopic rod; 405, Drive wheel; 406, Sleeve rod; 407, Threaded rod; 408, Threaded block; 409, Screw block; 410, Worm; 411, Fifth helical gear; 412, Telescopic power rod; 413, Driven block; 414, Driven rod; 415, Driven wheel; 416, Driven slide plate; 417, Sixth helical gear; 418, Seventh helical gear; 419, Driven force transmission rod; 420, Seventh helical gear; 421, Eighth helical gear. DETAILED DESCRIPTION

[0033] It should be noted that the embodiments and features in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0035] As Figures 1-9As shown, the application provides a metal pipe automatic feeding cutting device and cutting method, which comprises a surrounding structure 1, a cutting structure 2 and a impurity removal structure 3. The surrounding structure 1 comprises an outer ring 103 and an inner ring 104 rotatably installed inside the outer ring 103. A gear slot is arranged on one side of the inner ring 104. A first gear 105 is engaged with the gear slot. A first driver 106 is arranged at the center of one side of the first gear 105. The cutting structure 2 comprises a third support 201 installed on the other side of the inner wall of the inner ring 104. Two slide rods 202 are arranged on one side of the top of the third support 201. A fourth support 203 is slidably arranged on the outer wall of the two slide rods 202. An electric telescopic rod 205 is arranged at the middle of the bottom of the fourth support 203. A second driver 204 is installed on the top of the fourth support 203. A cutting knife 207 is installed on the output shaft of the second driver 204. The impurity removal structure 3 comprises a collection barrel 302 installed on one side of the slide rod 202. An air inlet pipe 301 is arranged on the top of the collection barrel 302. An isolation plate 303 is fixedly connected inside the collection barrel 302. A connecting shaft 304 is arranged at the middle of the isolation plate 303. A turbofan 305 is arranged below the collection barrel 302 and on the outer wall of the connecting shaft 304. A second transmission ring 306 is installed on the outer wall of the connecting shaft 304.

[0036] A set of stabilizing blocks 102 is installed on both sides of the outer ring 103. First legs 101 are fixedly connected to the opposite sides of the two sets of stabilizing blocks 102. A first support 107 is fixedly connected to the bottom of the first driver 106. One side of the first support 107 is fixedly connected to the outer ring 103. A second support 108 is installed on the bottom of the first support 107.

[0037] A first helical gear 208 is installed on the output shaft of the second driver 204. A second helical gear 209 is engaged with one side of the first helical gear 208. A third helical gear 210 is connected to one side of the second helical gear 209 through a transmission rod. A fourth helical gear 211 is engaged with the bottom of the third helical gear 210. A first transmission ring 212 is connected to the bottom of the fourth helical gear 211 through a transmission rod. A transmission belt 213 is arranged on the first transmission ring 212.

[0038] The other end of the transmission belt 213 is connected to the second transmission ring 306. A fifth support 308 is installed on the bottom of the collection barrel 302. An air outlet pipe 307 is installed on one side of the fifth support 308. At least one locking block 309 is fixedly connected to the third support 201 and installed on the air outlet pipe 307.

[0039] One side of the surrounding structure 1 is provided with a transmission structure 4, the transmission structure 4 includes two second legs 401, the top between the two second legs 401 is provided with a moving rod 402, the middle of the stabilizing block 102 is fixedly connected with a positioning block 403, both sides of the positioning block 403 are provided with a driven sliding plate 416 slidingly installed on the moving rod 402, the bottom of the two driven sliding plates 416 is fixedly connected with a group of driven rods 414, the bottom of the two groups of driven rods 414 is fixedly connected with a driven block 413, the top of the two driven blocks 413 is fixedly connected with a driven wheel 415, the opposite sides of the two driven blocks 413 are fixedly installed with a sleeve rod 406, the extending shaft of the sleeve rod 406 is fixedly connected with a threaded block 408, the receiving shaft of the two sleeve rods 406 is fixedly connected with a matching plate, and the two threaded blocks 408 are threadedly connected with a threaded rod 407.

[0040] The top of the positioning block 403 is fixedly connected with a pneumatic telescopic rod 404, the lower pressing shaft of the pneumatic telescopic rod 404 extends through the positioning block 403 to the bottom surface of the positioning block 403, the bottom of the positioning block 403 is provided with a driving wheel 405, one side of the driving wheel 405 is provided with a driven force transmission rod 419, the driven force transmission rod 419 is installed with a 418, the top of the 418 is engaged with a sixth helical gear 417, the top of the sixth helical gear 417 is fixedly connected with a telescopic power rod 412, the top of the telescopic power rod 412 is fixedly connected with a fifth helical gear 411, one side of the fifth helical gear 411 is engaged with a worm 410, one side of the worm 410 is provided with a relatively rotatingly connected screw block 409, and the screw block 409 is fixedly connected with the pneumatic telescopic rod 404.

[0041] The opposite sides of the threaded rod 407 are provided with eighth helical gears 421, and the two eighth helical gears 421 are engaged with a seventh helical gear 420.

[0042] The telescopic power rod 412 is designed in two sections, wherein the bottom section can slide in the top section, the two stabilizing frames connected to the telescopic power rod 412 for auxiliary fixing of the telescopic power rod 412 are rotationally connected with the telescopic power rod 412, and the telescopic power rod 412 is circularly designed at the stabilizing frame connection position, wherein the stabilizing frame connected to the bottom of the telescopic power rod 412 is fixedly installed on one side of the driven wheel 415.

[0043] The ends of the worm 410 and the seventh helical gear 420 are provided with driving assemblies, and the transmission structure 4 has at least two structures.

[0044] Working principle:

[0045] Before using the device, first, connect the parts of the device, ensure that the parts of the device cooperate normally, and ensure that the device can work normally.

[0046] When the device is in use, first adjust the distance between the two driven wheels 415 according to the diameter of the pipe, so that it fits the pipe, drive the rotation of the seventh bevel gear 420 through the drive structure, make the seventh bevel gear 420 drive the rotation of the two eighth bevel gears 421, the rotation of the two eighth bevel gears 421 drives the rotation of the threaded rods 407, the rotation of the threaded rods 407 drives the separation or approach of the threaded blocks 408, the separation or approach of the threaded blocks 408 drives the separation or approach of the driven blocks 413, realize size adjustment, insert the device pipe between the drive wheel 405 and the driven wheel 415, align one end of the pipe with the side of the last driven wheel 415, start the pneumatic telescopic rod 404, the pneumatic telescopic rod 404 drives the movement of the drive wheel 405, the stabilizer at the bottom of the telescopic power rod 412 pulls out the telescopic power rod 412 at the bottom, the sixth bevel gears 417, 418 and the driven force transmission rod 419 descend at the same frequency, when the drive wheel 405 contacts the top of the pipe, the pneumatic telescopic rod 404 stops working.

[0047] Start the worm 410 to work according to the set length, when the worm 410 rotates, drive the rotation of the fifth bevel gear 411, when the fifth bevel gear 411 rotates, drive the rotation of the telescopic power rod 412, the telescopic power rod 412 transmits its rotary force to the driven force transmission rod 419 through the meshing between the sixth bevel gears 417 and 418, the driven force transmission rod 419 drives the rotation of the drive wheel 405, thereby pushing the metal pipe forward.

[0048] When the device is in place, the second drive 204 and the first drive 106 work, the first drive 106 works to make the first gear 105 rotate, the first gear 105 rotates to drive the inner ring 104 to rotate in the outer ring 103, the inner ring 104 rotates to drive the cutting structure 2 and the impurity removal structure 3 to rotate in the outer ring 103, the second drive 204 is started to drive the cutting knife 207 to rotate through the output shaft of the second drive 204, according to the different diameters of the pipe, adjust the height of the fourth support 203 carrying the second drive 204 through the electric telescopic rod 205, so that the fourth support 203 can slide on the outer wall of the slide 202, when cutting, the electric telescopic rod 205 will also slowly push out to realize cutting some thickness every circle.

[0049] When the second driver 204 works, the first helical gear 208 installed on the output shaft of the second driver 204 drives the second helical gear 209 to rotate, the second helical gear 209 drives the third helical gear 210 and the fourth helical gear 211 to rotate, the fourth helical gear 211 drives the first transmission ring 212 to rotate, the first transmission ring 212 rotates and transmits to the second transmission ring 306 through the transmission belt 213 to make it rotate, the second transmission ring 306 drives the turbofan 305 to rotate, the turbofan 305 rotates to achieve air suction through the air inlet pipe 301, the metal powder generated by cutting is sucked into the collecting barrel 302 and isolated through the isolation plate 303, and the air outlet is discharged to the surface of the cutting knife 207 through the air outlet pipe 307 to ensure the cooling of the cutting knife 207.

[0050] Through the cooperation between the surrounding structure 1 and the cutting structure 2, the device can cut the steel pipe in a surrounding manner, realize one-layer and one-side cutting, avoid burrs generated by straight cutting, and more accurately realize the cutting requirement.

[0051] Through the setting of the impurity removal structure 3, the device can help collect the metal powder generated during cutting, avoid the problem of flying metal powder, and make the exhaust air pass through a finer pipeline to form high-speed gas directly blowing the cutting knife 207, help the cutting knife 207 to cool down, and prolong the service life of the cutting knife 207.

[0052] Through the setting of the transmission structure 4, automatic feeding can be realized, and pipes of different sizes can be cut.

[0053] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations.

[0054] Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A metal pipe automatic feeding and cutting device and cutting method, comprising a surrounding structure (1), a cutting structure (2) and an impurity removal structure (3), characterized in that: The surrounding structure (1) comprises an outer ring (103) and an inner ring (104) rotatably mounted inside the outer ring (103); a tooth groove is provided around one side of the inner ring of the inner ring (104); a first gear (105) is meshed with the tooth groove; and a first driver (106) is provided at the center position of one side of the first gear (105); The cutting structure (2) comprises a third support (201) installed on the other side of the inner wall of the inner ring (104); two slide rods (202) are provided on one side of the top of the third support (201); a fourth support (203) is slidably provided on the outer wall of the two slide rods (202); an electric telescopic rod (205) is provided in the middle of the bottom of the fourth support (203); a second driver (204) is installed on the top of the fourth support (203); and a cutting knife (207) is installed on the output shaft of the second driver (204); The impurity removal structure (3) comprises a collecting barrel (302) mounted on one side of a sliding rod (202), an air intake pipe (301) being provided on the top of the collecting barrel (302), an isolation plate (303) being fixedly connected to the interior of the collecting barrel (302), a connecting shaft (304) being provided in the middle of the isolation plate (303), a turbofan (305) being provided on the outer wall of the connecting shaft (304) and being located below the collecting barrel (302), and a second transmission ring (306) being provided on the outer wall of the connecting shaft (304) being provided below the turbofan (305).

2. The metal pipe automatic feeding and cutting device and cutting method according to claim 1, characterized in that: A group of stabilizing blocks (102) are installed on both sides of the outer ring (103); the opposite back surfaces of the two groups of stabilizing blocks (102) are fixedly connected to first legs (101); the bottom of the first driver (106) is fixedly connected to a first support platform (107); one side of the first support platform (107) is fixedly connected to the outer ring (103); and a second support platform (108) is installed on the bottom of the first support platform (107).

3. The metal pipe automatic feeding and cutting device and cutting method according to claim 1, characterized in that: A first helical gear (208) is mounted on the output shaft of the second driver (204); a second helical gear (209) is meshed on one side of the first helical gear (208); a third helical gear (210) is connected on one side of the second helical gear (209) via a transmission rod; a fourth helical gear (211) is meshed on the bottom of the third helical gear (210); a first transmission ring (212) is connected on the bottom of the fourth helical gear (211) via a transmission rod; and a transmission belt (213) is provided on the first transmission ring (212).

4. The metal pipe automatic feeding and cutting device and cutting method according to claim 3, characterized in that: The other end of the transmission belt (213) is connected to the second transmission ring (306), and a fifth support (308) is installed at the bottom of the collection bucket (302). An exhaust pipe (307) is installed on one side of the fifth support (308), and at least one locking block (309) fixedly connected to the third support (201) is installed on the exhaust pipe (307).

5. The metal pipe automatic feeding and cutting device and cutting method according to claim 1, characterized in that: A transmission structure (4) is provided on one side of the surrounding structure (1), and the transmission structure (4) includes two second legs (401), a moving rod (402) is installed on the top between the two second legs (401), a positioning block (403) is fixedly connected to the middle of the stabilizing block (102), and both sides of the positioning block (403) are provided with driven slides (416) slidably installed on the moving rod (402), and the bottoms of the two driven slides (416) are fixedly connected to a group of driven rods (41 4), the bottoms of the two groups of driven rods (414) are fixedly connected to driven blocks (413), the tops of the two driven blocks (413) are fixedly connected to driven wheels (415), the opposite back surfaces of the two driven blocks (413) are fixedly installed with sleeve rods (406), the extending shafts of the sleeve rods (406) are fixedly connected to threaded blocks (408), the receiving shafts of the two sleeve rods (406) are fixedly connected to matching plates, and the two threaded blocks (408) are threadedly connected to threaded rods (407).

6. The metal pipe automatic feeding and cutting device and cutting method according to claim 5, characterized in that: The top of the positioning block (403) is fixedly connected to a pneumatic telescopic rod (404), the lower pressure shaft of the pneumatic telescopic rod (404) passes through the positioning block (403) and extends to the bottom surface of the positioning block (403), the bottom of the positioning block (403) is installed with a driving wheel (405), one side of the driving wheel (405) is provided with a driven force transmission rod (419), the driven force transmission rod (419) is installed with (418), the top of the (418) is engaged with the A sixth bevel gear (417) is provided, the top of the sixth bevel gear (417) is fixedly connected to a telescopic power rod (412), the top of the telescopic power rod (412) is fixedly connected to a fifth bevel gear (411), one side of the fifth bevel gear (411) is meshed with a worm (410), one side of the worm (410) is provided with a screw block (409) connected in relative rotation, and the screw block (409) is fixedly connected to the pneumatic telescopic rod (404).

7. The metal pipe automatic feeding and cutting device and cutting method according to claim 6, characterized in that: The opposite surfaces of the threaded rod (407) are both mounted with eighth bevel gears (421), and one side of the two eighth bevel gears (421) is meshed with a seventh bevel gear (420).

8. The metal pipe automatic feeding and cutting device and cutting method according to claim 5, characterized in that: The telescopic power rod (412) is designed in two sections, wherein the bottom section can slide within the top section, and the two stabilizing frames connected to the telescopic power rod (412) for assisting in fixing the telescopic power rod (412) are rotatably connected to the telescopic power rod (412). The telescopic power rod (412) is designed in a circular shape at the connection position of the stabilizing frames, wherein the stabilizing frame connected to the bottom of the telescopic power rod (412) is fixedly installed on one side of the driven wheel (415).

9. The metal pipe automatic feeding and cutting device and cutting method according to claim 8, characterized in that: The ends of the worm (410) and the seventh bevel gear (420) are both equipped with drive components, and the transmission structure (4) must have at least two of them.

10. The metal pipe automatic feeding and cutting device and cutting method according to claims 1-9, characterized in that: The specific usage is as follows: S1. When the device is used, first adjust the distance between the two driven wheels (415) according to the diameter of the pipe to make it fit the pipe. The seventh bevel gear (420) is driven by the driving structure to rotate so that the seventh bevel gear (420) drives the two eighth bevel gears (421) to rotate. The rotation of the two eighth bevel gears (421) drives the two threaded rods (407) to rotate. The threaded rods (407) rotate to drive the threaded blocks (408) to separate or approach. The threaded blocks (408) separate or approach to drive the driven blocks (413) to separate or approach, thereby achieving size adjustment. The device pipe is inserted between the driving wheel (405) and the driven wheel (415) so that one end of the pipe is aligned with the side of the last driven wheel (415). The user starts the pneumatic telescopic rod (404), which drives the driving wheel (405) to move. The stabilizing frame at the bottom of the telescopic power rod (412) pulls out the telescopic power rod (412) at the bottom, and the sixth bevel gear (417), (418) and the driven force transmission rod (419) descend at the same frequency. When the driving wheel (405) contacts the top of the pipe, the pneumatic telescopic rod (404) stops working. S2, starting the worm (410) to cause the drive assembly connected to the worm (410) to work according to the set length. When the worm (410) rotates, the fifth bevel gear (411) is driven to rotate. When the fifth bevel gear (411) rotates, the telescopic power rod (412) is driven to rotate. The telescopic power rod (412) transmits its rotational force to the driven force transmission rod (419) through the engagement between the sixth bevel gears (417) and (418). The driven force transmission rod (419) drives the driving wheel (405) to rotate, thereby pushing the metal pipe forward. S3. After the device moves to its position, the second driver (204) and the first driver (106) start working. The first driver (106) works to drive the first gear (105) to rotate. The rotation of the first gear (105) drives the inner ring (104) to rotate inside the outer ring (103). The rotation of the inner ring (104) drives the cutting structure (2) and the impurity removal structure (3) to rotate inside the outer ring (103). The second driver (204) starts to drive the cutting knife (207) to rotate through the output shaft of the second driver (204). According to the different diameters of the pipe, the fourth support (203) carrying the second driver (204) is height-adjusted by the electric telescopic rod (205) so that the fourth support (203) can slide on the outer wall of the slide rod (202). During cutting, the electric telescopic rod (205) is also slowly pushed out to achieve a certain thickness of cutting in each circle. S4. When the second driver (204) is working, the first bevel gear (208) installed on the output shaft of the second driver (204) drives the second bevel gear (209) to rotate. The rotation of the second bevel gear (209) drives the third bevel gear (210) and the fourth bevel gear (211) to rotate. The rotation of the fourth bevel gear (211) drives the first transmission ring (212) to rotate. The rotation of the first transmission ring (212) is transmitted to the second transmission ring (306) through the transmission belt (213) to rotate. The rotation of the second transmission ring (306) drives the turbofan (305) to rotate. The turbofan (305) rotates through the air intake pipe (301) to achieve exhaust. The metal powder generated by cutting is sucked into the collection bucket (302) and isolated by the isolation plate (303). The exhaust air is discharged to the surface of the cutting knife (207) through the exhaust pipe (307) to ensure the cooling of the cutting knife (207).

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