A cutting device for thin-walled steel pipe production

Abstract

The present application relates to the field of thin-walled steel pipe cutting, and in particular to a cutting device for thin-walled steel pipe production. The technical problem is as follows: the diameter of the inner support round rod used in the prior art is not variable, and it is impossible to support the inner cavity of thin-walled steel pipes of different diameters, and the applicability is low. The technical solution is as follows: A cutting device for thin-walled steel pipe production, including a base plate and an electric cutting machine, etc.; an electric cutting machine is arranged between the two base plates. The present invention controls the moving distance of the first support rod and the second support rod by the first electric push rod and the second electric push rod, and can support the inner wall of thin-walled steel pipes of different diameters. At the same time, the moving distance of the third support rod and the fourth support rod are controlled by two third electric push rods to support the outer wall of thin-walled steel pipes of different diameters. At the same time, the first support rod, the second support rod, the third support rod and the fourth support rod are controlled to move with the cutting point, so that the inner wall and the outer wall of the thin-walled steel pipe at the cutting point can be kept supported at all times.

Description

Technical Field

[0001] The present application relates to the field of thin-walled steel pipe cutting, and in particular to a cutting device for thin-walled steel pipe production. Background Art

[0002] Chinese patent: CN113084250A proposes a thin-walled steel pipe cutting device, which supports the inner cavity of the thin-walled steel pipe through an inner support rod to prevent the thin-walled steel pipe from being deformed during cutting, thereby improving the quality of the thin-walled steel pipe; however, the diameter of the inner support rod used is not variable, and it cannot support the inner cavity of thin-walled steel pipes of different diameters, and its applicability is low; and it does not support the outer wall of the thin-walled steel pipe. When the cutting blade cuts the thin-walled steel pipe, the direction of the force of the cutting blade pulling and squeezing the thin-walled steel pipe is constantly changing. Therefore, it is necessary to support both the inner and outer walls of the thin-walled steel pipe to effectively prevent the thin-walled steel pipe from being deformed during cutting; and when cutting the thin-walled steel pipe, some cutting debris will splash into the thin-walled steel pipe, and the cutting chips in the thin-walled steel pipe need to be cleaned later, which increases the workload. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art in that the diameter of the inner supporting round rod is fixed, the inner cavity of thin-walled steel pipes of different diameters cannot be supported, and the applicability is low, the present invention provides a cutting device for thin-walled steel pipe production.

[0004] The technical solution is as follows: A cutting equipment for the production of thin-walled steel pipes, comprising a base, a base plate and an electric cutting machine; a number of base plates are fixedly connected to the lower sides of the two base plates, and the two base plates are symmetrically arranged on the left and right; an electric cutting machine is arranged between the two base plates; it also includes an auxiliary cutting mechanism; the two base plates are respectively connected to an auxiliary cutting mechanism, and the two auxiliary cutting mechanisms are symmetrically arranged on the left and right; the auxiliary cutting mechanism on the left comprises a first moving member, a second moving member, a receiving unit, a driving unit, a first support rod and a second support rod; the first moving member is connected to the left base plate; the first moving member is connected to the driving unit; the driving unit is connected to the first support rod and the second support rod; the first moving member is used to drive the driving unit, the first support rod and the second support rod to move left and right, and the driving unit is used to drive the first support rod and the second support rod to move and rotate; the second moving member is connected to the left base plate; the second moving member is connected to the receiving unit for receiving the thin-walled steel pipe, and the second moving member is used to drive the receiving unit to move left and right.

[0005] Optionally, the receiving unit includes a first mounting plate, a first receiving plate, a first motor, a first transmission shaft and a second receiving plate; the second movable member is connected to the first mounting plate; the first receiving plate is fixedly connected to the first mounting plate; the first motor is fixedly connected to the first mounting plate; the first motor output shaft is fixedly connected to the first transmission shaft; the first transmission shaft is rotatably connected to the first mounting plate; the second receiving plate is fixedly connected to the outer surface of the first transmission shaft, and the first receiving plate and the second receiving plate are V-shaped, for receiving thin-walled steel pipes of different diameters.

[0006] Optionally, grooves are provided on the surfaces of the first receiving plate and the second receiving plate.

[0007] Optionally, the drive unit includes a second mounting plate, a mounting frame, a second transmission shaft, a first electric push rod, a shaft sleeve, a second electric push rod, a second motor, a third motor, a third transmission shaft, a first gear and a first gear ring; the first moving member is connected to the second mounting plate; the mounting frame is fixedly connected to the second mounting plate; the middle portion of the mounting frame is rotatably connected to the second transmission shaft; the second transmission shaft is rotatably connected to the second mounting plate; the second mounting plate is fixedly connected to the second motor; the second motor output shaft is fixedly connected to the second transmission shaft; the right portion of the outer surface of the second transmission shaft is fixedly connected to the first electric push rod. push rod; the telescopic end of the first electric push rod is fixedly connected to the first support rod; the middle part of the mounting frame is rotatably connected with a bushing; the second electric push rod is fixedly connected to the outer surface of the bushing; the telescopic end of the second electric push rod is fixedly connected to the second support rod; the outer surface of the bushing is fixedly connected to the first gear ring; the third motor is fixedly connected to the second mounting plate; the output shaft of the third motor is fixedly connected to the third transmission shaft; the third transmission shaft is rotatably connected to the second mounting plate; the third transmission shaft is rotatably connected to the mounting frame; the right part of the outer surface of the third transmission shaft is fixedly connected to the first gear; the first gear is meshed with the first gear ring.

[0008] Optionally, the auxiliary cutting mechanism on the left also includes an external support unit; the external support unit includes a third mounting plate, a fourth mounting plate, a mounting ring, a third electric push rod, a power assembly, a third support rod and a fourth support rod; several third mounting plates are fixedly connected to the right side of the second mounting plate on the left; several third mounting plates are commonly fixedly connected to the fourth mounting plate; two mounting rings are rotatably connected in the fourth mounting plate; a third electric push rod is respectively fixed to the inner surfaces of the two mounting rings; the telescopic end of the third electric push rod on the right is fixedly connected to the third support rod; the telescopic end of the third electric push rod on the left is fixedly connected to the fourth support rod; the fourth mounting plate is connected to a power assembly for driving the two mounting rings to rotate; both mounting rings are connected to the power assembly.

[0009] Optionally, the auxiliary cutting mechanism on the left also includes a shielding unit; the shielding unit includes a variable diameter airbag, a cleaning rod and a cleaning rope; the variable diameter airbag is fixedly connected to the right part of the second transmission shaft; there is a cleaning rod on the second support rod; the cleaning rod is in contact with the variable diameter airbag; a cleaning rope is fixedly connected to the cleaning rod; the cleaning rope is fixedly connected to the second support rod.

[0010] Optionally, the contact portion between the cleaning rod and the variable diameter airbag is arranged to be inclined.

[0011] Optionally, the auxiliary cutting mechanism on the left also includes a first cleaning unit; the first cleaning unit includes a first elastic cleaning plate and a blowing port; two first elastic cleaning plates are respectively fixed to the first support rod and the second support rod, and the two first elastic cleaning plates on the same support rod are symmetrically arranged on the left and right; an blowing port is respectively fixed to the first support rod and the second support rod.

[0012] Optionally, the auxiliary cutting mechanism on the left also includes a second cleaning unit; the second cleaning unit includes a second elastic cleaning plate, a fourth electric push rod and a scraper; four second elastic cleaning plates are fixed to the third support rod and the fourth support rod respectively, and the four second elastic cleaning plates on the same support rod are arranged in a rectangular shape; a fourth electric push rod is fixed to the third support rod and the fourth support rod respectively; a scraper is fixed to the telescopic end of each of the two fourth electric push rods; the third support rod and the fourth support rod are respectively slidably connected to a scraper.

[0013] Optionally, the left portion of the scraper is arranged to be inclined.

[0014] The beneficial effects are: 1. The present invention controls the moving distance of the first support rod and the second support rod through the first electric push rod and the second electric push rod to support the inner wall of thin-walled steel pipes with different diameters. At the same time, the moving distance of the third support rod and the fourth support rod are controlled by two third electric push rods to support the outer wall of thin-walled steel pipes with different diameters. At the same time, the first support rod, the second support rod, the third support rod and the fourth support rod are controlled to move with the cutting point, so that the inner wall and the outer wall of the thin-walled steel pipe at the cutting point can be supported at all times to prevent the cutting blade from pulling and squeezing the edge of the thin-walled steel pipe, causing deformation of the thin-walled steel pipe.

[0015] 2. The present invention controls the expansion of the variable diameter airbag so that its outer surface contacts the inner wall of the thin-walled steel pipe, thereby allowing the variable diameter airbag to block the cutting chips and prevent the cutting chips from entering the thin-walled steel pipe.

[0016] 3. The present invention uses the first elastic cleaning plate and the second elastic cleaning plate to remove debris remaining on the inner wall and outer wall of the thin-walled steel pipe, and prevents the debris from entering between the first support rod, the second support rod, the third support rod and the fourth support rod and the thin-walled steel pipe, and prevents the first support rod, the second support rod, the third support rod and the fourth support rod from squeezing the debris to cause damage to the thin-walled steel pipe; the present invention also uses a scraper to scrape off the debris remaining on the surface of the thin-walled steel pipe, thereby improving the quality of the thin-walled steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the cutting equipment for producing thin-walled steel pipes of the present invention;

[0018] Figure 2 This is a schematic diagram of a first partial three-dimensional structure of a thin-walled steel pipe production cutting device according to the present invention;

[0019] Figure 3 This is a schematic diagram of a second partial three-dimensional structure of the cutting equipment for thin-walled steel pipe production according to the present invention;

[0020] Figure 4 This is a schematic diagram of a third partial three-dimensional structure of the cutting equipment for thin-walled steel pipe production according to the present invention;

[0021] Figure 5 This is a schematic diagram of a fourth partial three-dimensional structure of the thin-walled steel pipe production cutting device of the present invention;

[0022] Figure 6 This is a three-dimensional cross-sectional view of the cutting equipment for producing thin-walled steel pipes according to the present invention.

[0023] Markings in the accompanying drawings: 1-base, 2-bottom plate, 3-electric cutting machine, 4-first moving member, 5-second moving member, 6-first support rod, 7-second support rod, 8-thin-walled steel pipe, 11-first mounting plate, 12-first receiving plate, 13-first motor, 14-first transmission shaft, 15-second receiving plate, 21-second mounting plate, 22-mounting frame, 23-second transmission shaft, 24-first electric push rod, 25-sleeve, 26-second electric push rod, 27-second motor, 28-third electric push rod Machine, 29-third transmission shaft, 210-first gear, 211-first gear ring, 31-variable airbag, 32-cleaning rod, 33-cleaning rope, 41-first elastic cleaning plate, 42-blowing port, 51-third mounting plate, 52-fourth mounting plate, 53-mounting ring, 54-third electric push rod, 55-second gear, 56-second gear ring, 57-fourth motor, 58-third support rod, 59-fourth support rod, 61-second elastic cleaning plate, 62-fourth electric push rod, 63-scraper. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] A thin-walled steel pipe 8 production cutting device, such as Figure 1-6 As shown, it includes a foot 1, a bottom plate 2 and an electric cutter 3; four foots 1 are bolted to the lower side of the two bottom plates 2, and the two bottom plates 2 are arranged symmetrically on the left and right; an electric cutter 3 is arranged between the two bottom plates 2;

[0027] It also includes an auxiliary cutting mechanism; the two base plates 2 are respectively connected to an auxiliary cutting mechanism, and the two auxiliary cutting mechanisms are symmetrically arranged on the left and right; the auxiliary cutting mechanism on the left includes a first moving member 4, a second moving member 5, a receiving unit, a driving unit, a first support rod 6 and a second support rod 7; the left base plate 2 is connected to the first moving member 4; the first moving member 4 is connected to the driving unit; the driving unit is connected to the first support rod 6 and the second support rod 7; the first moving member 4 is used to drive the driving unit, the first support rod 6 and the second support rod 7 to move left and right, and the driving unit is used to drive the first support rod 6 and the second support rod 7 to move and rotate; the left base plate 2 is connected to the second moving member 5; the second moving member 5 is connected to the receiving unit for receiving the thin-walled steel pipe 8, and the second moving member 5 is used to drive the receiving unit to move left and right.

[0028] The receiving unit includes a first mounting plate 11, a first receiving plate 12, a first motor 13, a first transmission shaft 14 and a second receiving plate 15; the second movable member 5 is connected to the first mounting plate 11; the first receiving plate 12 is welded to the rear right side of the first mounting plate 11; the first motor 13 is bolted to the lower left side of the first mounting plate 11; the output shaft of the first motor 13 is fixedly connected to the first transmission shaft 14; the first transmission shaft 14 is rotatably connected to the first mounting plate 11; the outer surface of the first transmission shaft 14 is fixedly connected to the second receiving plate 15, the first receiving plate 12 and the second receiving plate 15 are V-shaped, and are used to receive thin-walled steel pipes 8 of different diameters, and grooves are provided on the surfaces of the first receiving plate 12 and the second receiving plate 15 to increase the friction with the thin-walled steel pipe 8.

[0029] The driving unit includes a second mounting plate 21, a mounting frame 22, a second transmission shaft 23, a first electric push rod 24, a sleeve 25, a second electric push rod 26, a second motor 27, a third motor 28, a third transmission shaft 29, a first gear 210 and a first gear ring 211; the first moving member 4 is connected to the second mounting plate 21; a mounting frame 22 is welded to the middle of the right side of the second mounting plate 21; the middle of the mounting frame 22 is rotatably connected to the second transmission shaft 23; the second transmission shaft 23 is rotatably connected to the second mounting plate 21; the middle of the left side of the second mounting plate 21 is bolted to the second motor 27; the output shaft of the second motor 27 is fixedly connected to the second transmission shaft 23; the right part of the outer surface of the second transmission shaft 23 is fixedly connected to the first electric push rod 26; the output shaft of the second motor 27 is fixedly connected to the second transmission shaft 23; the first electric push rod 26 is ... The third motor 28 is connected to the second mounting plate 21 through a bolt on the left side, and the output shaft of the third motor 28 is fixed to the third transmission shaft 29; the third transmission shaft 29 is rotationally connected to the second mounting plate 21; the third transmission shaft 29 is rotationally connected to the mounting frame 22; the first gear 210 is fixed to the right side of the outer surface of the third transmission shaft 29; the first gear 210 is meshed with the first gear ring 211.

[0030] The auxiliary cutting mechanism on the left also includes an external support unit; the external support unit includes a third mounting plate 51, a fourth mounting plate 52, a mounting ring 53, a third electric push rod 54, a power assembly, a third support rod 58 and a fourth support rod 59; two third mounting plates 51 are welded to the right side of the second mounting plate 21 on the left; the right parts of the two third mounting plates 51 are jointly welded with a fourth mounting plate 52; the fourth mounting plate 52 is rotatably connected to two mounting rings 53; the inner surfaces of the two mounting rings 53 are respectively fixed with a third electric push rod 54; the telescopic end of the third electric push rod 54 on the right is fixed with the third support rod 58; the telescopic end of the third electric push rod 54 on the left is fixed with the fourth support rod 59; the fourth mounting plate 52 is connected to a power assembly for driving the two mounting rings 53 to rotate; both mounting rings 53 are connected to the power assembly.

[0031] The power assembly includes a second gear 55, a second gear ring 56 and a fourth motor 57; the outer surface of the two mounting rings 53 is respectively fixed with a second gear ring 56; the left side of the fourth mounting plate 52 is bolted with two fourth motors 57; the output shafts of the two fourth motors 57 are respectively fixed with a second gear 55; the two second gear rings 56 are respectively engaged with a second gear 55.

[0032] During operation, the thin-walled steel pipe 8 is placed on the first receiving plate 12 and the second receiving plate 15 of the two auxiliary cutting mechanisms, and the position of the thin-walled steel pipe 8 is adjusted so that the cutting position is located directly below the electric cutting machine 3 to prepare to cut the thin-walled steel pipe 8, and then the two auxiliary cutting mechanisms are controlled to start together to support the left and right parts of the cutting position of the thin-walled steel pipe 8 to prevent the deformation of the cutting mouth during cutting and affect the quality of the thin-walled steel pipe 8; when the auxiliary cutting mechanism on the left is working, the first moving member 4 is controlled to drive the second mounting plate 21 and its associated components to move to the right, and move to the first support rod 6, the second support rod 7, the third support rod 58 and the fourth support rod The right side of the support rod 59 is close to the cutting blade in the electric cutting machine 3, and then the first electric push rod 24 and the second electric push rod 26 are controlled to drive the first support rod 6 and the second support rod 7 to move toward the inner wall of the thin-walled steel pipe 8, so that the first support rod 6 and the second support rod 7 are in contact with the inner wall of the thin-walled steel pipe 8. At the same time, the two third electric push rods 54 are controlled to drive the third support rod 58 and the fourth support rod 59 to move toward the outer wall of the thin-walled steel pipe 8, so that the third support rod 58 and the fourth support rod 59 are in contact with the outer wall of the thin-walled steel pipe 8, wherein the first support rod 6 and the third support rod 58 cooperate to clamp the pipe wall, and the second support rod 7 and the fourth support rod 59 cooperate to clamp the pipe wall, as shown in FIG. Figure 4As shown; then the electric cutting machine 3 is controlled to start cutting the thin-walled steel pipe 8. During cutting, the cutting blade in the electric cutting machine 3 gradually moves downward to cut the thin-walled steel pipe 8. The cutting point of the cutting blade of the electric cutting machine 3 on the thin-walled steel pipe 8 is divided into two points, front and back. During cutting, the front and back two cutting points will gradually move downward. Therefore, the corresponding support point of the thin-walled steel pipe 8 also needs to move with the cutting point. At this time, based on the view from right to left, the second motor 27 is controlled to drive the second transmission shaft 23 to rotate clockwise, and the second transmission shaft 23 drives the first electric push rod 24 and the first support rod 6 to rotate clockwise. At the same time, the fourth motor 57 on the right side of the fourth mounting plate 52 is controlled to drive the corresponding second The gear 55 rotates counterclockwise, and the second gear 55 drives the corresponding second gear ring 56 to drive the right mounting ring 53 to rotate clockwise. The right mounting ring 53 drives the corresponding third electric push rod 54 to drive the third support rod 58 to rotate clockwise, so that the third support rod 58 and the first support rod 6 rotate clockwise synchronously, so that the third support rod 58 and the first support rod 6 move following the cutting point at the rear of the thin-walled steel pipe 8. In this way, the inner and outer walls of the thin-walled steel pipe 8 at the cutting position can be supported at all times to prevent the cutting blade from pulling and squeezing the edge of the thin-walled steel pipe 8 and causing deformation of the thin-walled steel pipe 8; at the same time, the second support rod 7 and the fourth support rod 59 are controlled to rotate clockwise synchronously to follow the thin-walled steel pipe 8. The cutting point at the front of the steel pipe 8 moves, that is, the third motor 28 is controlled to drive the third transmission shaft 29 to drive the first gear 210 to rotate clockwise, the first gear 210 drives the first gear ring 211 to drive the shaft sleeve 25 to rotate counterclockwise, the shaft sleeve 25 drives the second electric push rod 26 and the second support rod 7 to rotate counterclockwise, and at the same time, the fourth motor 57 on the left is controlled to drive the corresponding second gear 55 to rotate clockwise, the second gear 55 drives the corresponding second gear ring 56 to drive the left mounting ring 53 to rotate counterclockwise, and the left mounting ring 53 drives the corresponding third electric push rod 54 to drive the fourth support rod 59 to rotate counterclockwise, so that the second support rod 7 and the fourth support rod 59 are synchronous. Counterclockwise rotation; In summary, by controlling the moving distances of the first support rod 6 and the second support rod 7 by the first electric push rod 24 and the second electric push rod 26, the inner walls of thin-walled steel pipes 8 of different diameters can be supported. At the same time, by controlling the moving distances of the third support rod 58 and the fourth support rod 59 by the two third electric push rods 54, the outer walls of thin-walled steel pipes 8 of different diameters can be supported. At the same time, the first support rod 6, the second support rod 7, the third support rod 58 and the fourth support rod 59 are controlled to move following the cutting point. In this way, the inner and outer walls of the thin-walled steel pipe 8 at the cutting point can be supported at all times to prevent the cutting blade from pulling and squeezing the edge of the thin-walled steel pipe 8 and causing deformation of the thin-walled steel pipe 8.After cutting, the two cutting auxiliary mechanisms are controlled to move out of the thin-walled steel pipe 8. Then, the two first motors 13 are controlled to drive the corresponding first transmission shafts 14 and second receiving plates 15 to rotate counterclockwise, causing the two second receiving plates 15 to tilt downward. In this way, the two cut thin-walled steel pipes 8 lose the support of the second receiving plates 15 and then roll down along the second receiving plates 15. A collection mechanism is placed below to collect the rolled thin-walled steel pipes 8.

[0033] Example 2

[0034] On the basis of Example 1, Figure 3-5 As shown, the auxiliary cutting mechanism on the left also includes a shielding unit; the shielding unit includes a variable diameter air bag 31, a cleaning rod 32 and a cleaning rope 33; the right part of the second transmission shaft 23 is fixedly connected to the variable diameter air bag 31; the right part of the second support rod 7 is fixedly connected to the cleaning rod 32; the cleaning rod 32 is in contact with the variable diameter air bag 31, and the contact point between the cleaning rod 32 and the variable diameter air bag 31 is set to an inclined shape, and bristles are provided on the left side of the cleaning rod 32 to facilitate cleaning of cuttings on the variable diameter air bag 31; a cleaning rope 33 is fixedly connected to the middle part of the left side of the cleaning rod 32, and the surface of the cleaning rope 33 is provided with fluff to facilitate cleaning of cuttings on the variable diameter air bag 31; the cleaning rope 33 is fixedly connected to the second support rod 7.

[0035] The auxiliary cutting mechanism on the left also includes a first cleaning unit; the first cleaning unit includes a first elastic cleaning plate 41 and a blowing port 42; two first elastic cleaning plates 41 are respectively fixed to the first support rod 6 and the second support rod 7, and the two first elastic cleaning plates 41 on the same support rod are arranged symmetrically on the left and right; a blowing port 42 is respectively fixed to the middle of the left side of the first support rod 6 and the second support rod 7.

[0036] When the thin-walled steel pipe 8 is cut, cutting debris will splash into the thin-walled steel pipe 8. The cutting debris in the thin-walled steel pipe 8 needs to be cleaned up later, which increases the workload. Therefore, a variable diameter air bag 31 is provided at the right end of the second transmission shaft 23. The variable diameter air bag 31 is connected to the external air pump before work. Before cutting, the external air pump is controlled to inflate the variable diameter air bag 31 so that the variable diameter air bag 31 expands and expands until its outer surface contacts the inner wall of the thin-walled steel pipe 8. In this way, the variable diameter air bag 31 will block the cutting debris. After long-term use, the variable diameter air bag 31 will be inflated. A large amount of cutting chips will be attached to the right side of the airbag 31, which needs to be cleaned. After the variable diameter airbag 31 is expanded, it will squeeze the cleaning rope 33 to deform it. After deformation, the cleaning rope 33 is close to the outer arc surface of the variable diameter airbag 31. At this time, the second support rod 7 can be controlled to rotate counterclockwise, and the second support rod 7 drives the cleaning rod 32 and the cleaning rope 33 to rotate to clean the right side of the variable diameter airbag 31, and scrape off the cutting chips on the right side of the variable diameter airbag 31; in order to prevent the variable diameter airbag 31 from being cut by the cutting blade, the right side of the variable diameter airbag 31 is still away from the cutting part. There is a small distance, and some cutting chips will remain on the inner wall of the thin-walled steel pipe 8 in this distance. Therefore, a first elastic cleaning plate 41 is provided on the first support rod 6 and the second support rod 7. When the first support rod 6 and the second support rod 7 rotate, the corresponding first elastic cleaning plate 41 will be driven to scrape the cutting chips from the inner wall of the thin-walled steel pipe 8, and the chips will be scraped to the lower part of the thin-walled steel pipe 8. At the same time, the first elastic cleaning plate 41 can prevent the cutting chips from entering between the first support rod 6 and the second support rod 7 and the thin-walled steel pipe 8, preventing the first support rod 6 from The second support rod 7 squeezes the debris to damage the thin-walled steel pipe 8. Before work, the two blowing ports 42 are connected to the external air pump. When the thin-walled steel pipe 8 is cut off, the two second moving parts 5 are controlled to drive the corresponding first mounting plate 11 and its associated components to move oppositely, so that the corresponding first receiving plate 12 and the second receiving plate 15 move oppositely to separate the two sections of thin-walled steel pipe 8, and then the external air pump is controlled to start blowing air toward the inner wall of the thin-walled steel pipe 8 through the blowing port 42 to blow away the cutting chips gathered in the lower part of the thin-walled steel pipe 8.

[0037] Example 3

[0038] On the basis of Example 2, Figure 4-6 As shown, the auxiliary cutting mechanism on the left also includes a second cleaning unit; the second cleaning unit includes a second elastic cleaning plate 61, a fourth electric push rod 62 and a scraper 63; four second elastic cleaning plates 61 are fixed to the third support rod 58 and the fourth support rod 59 respectively, and the four second elastic cleaning plates 61 on the same support rod are arranged in a rectangular shape; a fourth electric push rod 62 is fixed to the third support rod 58 and the fourth support rod 59 respectively; a scraper 63 is fixed to the telescopic end of each of the two fourth electric push rods 62; the third support rod 58 and the fourth support rod 59 are respectively slidably connected to a scraper 63, and the left part of the scraper 63 is arranged to be inclined to facilitate scraping off debris on the right end face of the thin-walled steel pipe 8.

[0039] During cutting, some cutting chips will remain on the outer wall of the thin-walled steel pipe 8. Therefore, a second elastic cleaning plate 61 is provided on the third support rod 58 and the fourth support rod 59. When the third support rod 58 and the fourth support rod 59 move, the cutting chips on the outer wall of the thin-walled steel pipe 8 will be scraped off. At the same time, the second elastic cleaning plate 61 can prevent the cutting chips from entering between the third support rod 58 and the fourth support rod 59 and the thin-walled steel pipe 8, and prevent the third support rod 58 and the fourth support rod 59 from squeezing the chips and causing damage to the thin-walled steel pipe 8; in addition, some cutting chips will adhere to the right end face of the thin-walled steel pipe 8. Therefore, after the cutting is completed, the two second moving members 5 are first controlled to drive the corresponding first mounting plate 11 and its associated components to move back to back, so that the corresponding first receiving plate 12 and the second receiving plate 15 move back to back to separate the two sections of thin-walled steel pipe 8. After separation, the right end face of the left thin-walled steel pipe 8 is flush with the right end face of the second elastic cleaning plate 61 on the left. Figure 6 As shown, before the first support rod 6, the second support rod 7, the third support rod 58 and the fourth support rod 59 return to reset, the fourth electric push rod 62 on the third support rod 58 and the fourth support rod 59 is controlled to drive the corresponding scraper 63 to move toward the tube wall, until the scraper 63 contacts the right end surface of the thin-walled steel tube 8, and the scraper 63 contacts the first elastic cleaning plate 41, and then the first support rod 6, the second support rod 7, the third support rod 58 and the fourth support rod 59 are controlled to return to reset, and the scraper 63 can scrape off the debris remaining on the right end surface of the thin-walled steel tube 8. During scraping, the first elastic cleaning plate 41 and the second elastic cleaning plate 61 can prevent the cutting chips from moving to the inner and outer walls of the thin-walled steel tube 8.

[0040] Although the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A cutting device for thin-walled steel pipe production, comprising a foot (1); a plurality of foots (1) are fixedly connected to the lower sides of two bottom plates (2), and the two bottom plates (2) are arranged symmetrically; an electric cutting machine (3) is arranged between the two bottom plates (2); characterized in that, The invention also includes an auxiliary cutting mechanism; the two bottom plates (2) are respectively connected to an auxiliary cutting mechanism, and the two auxiliary cutting mechanisms are arranged symmetrically on the left and right; the auxiliary cutting mechanism on the left includes a first moving member (4); the first moving member (4) is connected to the left bottom plate (2); the first moving member (4) is connected to a driving unit; the driving unit is connected to a first support rod (6) and a second support rod (7); the first moving member (4) is used to drive the driving unit, the first support rod (6) and the second support rod (7) to move left and right, and the driving unit is used to drive the first support rod (6) and the second support rod (7) to move and rotate; the left bottom plate (2) is connected to a second moving member (5); the second moving member (5) is connected to a receiving unit for receiving a thin-walled steel pipe (8), and the second moving member (5) is used to drive the receiving unit to move left and right; The driving unit includes a second mounting plate (21); a first moving member (4) is connected to the second mounting plate (21); a mounting frame (22) is fixedly connected to the second mounting plate (21); a middle portion of the mounting frame (22) is rotatably connected to a second transmission shaft (23); the second transmission shaft (23) is rotatably connected to the second mounting plate (21); a second motor (27) is fixedly connected to the second mounting plate (21); an output shaft of the second motor (27) is fixedly connected to the second transmission shaft (23); a first electric push rod (24) is fixedly connected to the right portion of the outer surface of the second transmission shaft (23); a telescopic end of the first electric push rod (24) is fixedly connected to the first support rod (6); a middle portion of the mounting frame (22) is rotatably connected to the second transmission shaft (23); A shaft sleeve (25) is provided; a second electric push rod (26) is fixedly connected to the outer surface of the shaft sleeve (25); the telescopic end of the second electric push rod (26) is fixedly connected to the second support rod (7); a first gear ring (211) is fixedly connected to the outer surface of the shaft sleeve (25); a third motor (28) is fixedly connected to the second mounting plate (21); an output shaft of the third motor (28) is fixedly connected to a third transmission shaft (29); the third transmission shaft (29) is rotationally connected to the second mounting plate (21); the third transmission shaft (29) is rotationally connected to the mounting frame (22); a first gear (210) is fixedly connected to the right portion of the outer surface of the third transmission shaft (29); the first gear (210) is meshed with the first gear ring (211); The auxiliary cutting mechanism on the left also includes an external support unit; the external support unit includes a third mounting plate (51); a plurality of third mounting plates (51) are fixedly connected to the right side of the second mounting plate (21) on the left; a plurality of third mounting plates (51) are commonly fixedly connected to a fourth mounting plate (52); two mounting rings (53) are rotatably connected inside the fourth mounting plate (52); a third electric push rod (54) is fixedly connected to the inner surface of each of the two mounting rings (53); a third support rod (58) is fixedly connected to the telescopic end of the third electric push rod (54) on the right; a fourth support rod (59) is fixedly connected to the telescopic end of the third electric push rod (54) on the left; the fourth mounting plate (52) is connected to a power assembly for driving the two mounting rings (53) to rotate; and both mounting rings (53) are connected to the power assembly.

2. The thin-walled steel pipe cutting device according to claim 1, characterized in that: The receiving unit includes a first mounting plate (11); a second moving member (5) is connected to the first mounting plate (11); a first receiving plate (12) is fixedly connected to the first mounting plate (11); a first motor (13) is fixedly connected to the first mounting plate (11); an output shaft of the first motor (13) is fixedly connected to a first transmission shaft (14); the first transmission shaft (14) is rotatably connected to the first mounting plate (11); a second receiving plate (15) is fixedly connected to the outer surface of the first transmission shaft (14); the first receiving plate (12) and the second receiving plate (15) are V-shaped and are used to receive thin-walled steel pipes (8) of different diameters.

3. The thin-walled steel pipe cutting device according to claim 2, characterized in that: Grooves are provided on the surfaces of the first receiving plate (12) and the second receiving plate (15).

4. The thin-walled steel pipe cutting device according to claim 3, characterized in that: The auxiliary cutting mechanism on the left also includes a shielding unit; the shielding unit includes a variable diameter airbag (31); the right portion of the second transmission shaft (23) is fixedly connected to the variable diameter airbag (31); a cleaning rod (32) is provided on the second support rod (7); the cleaning rod (32) is in contact with the variable diameter airbag (31); a cleaning rope (33) is fixedly connected to the cleaning rod (32); and the cleaning rope (33) is fixedly connected to the second support rod (7).

5. The thin-walled steel pipe cutting device according to claim 4, characterized in that: The contact point between the cleaning rod (32) and the variable diameter air bag (31) is arranged in an inclined shape.

6. A thin-walled steel pipe cutting device according to any one of claims 4-5, characterized in that: The auxiliary cutting mechanism on the left also includes a first cleaning unit; the first cleaning unit includes a first elastic cleaning plate (41); two first elastic cleaning plates (41) are fixedly connected to the first support rod (6) and the second support rod (7), and the two first elastic cleaning plates (41) on the same support rod are symmetrically arranged on the left and right; and an air blowing port (42) is fixedly connected to the first support rod (6) and the second support rod (7).

7. The thin-walled steel pipe cutting device according to claim 6, characterized in that: The auxiliary cutting mechanism on the left also includes a second cleaning unit; the second cleaning unit includes a second elastic cleaning plate (61); four second elastic cleaning plates (61) are fixedly connected to the third support rod (58) and the fourth support rod (59), and the four second elastic cleaning plates (61) on the same support rod are arranged in a rectangular shape; a fourth electric push rod (62) is fixedly connected to the third support rod (58) and the fourth support rod (59); a scraper (63) is fixedly connected to the telescopic end of each of the two fourth electric push rods (62); and the third support rod (58) and the fourth support rod (59) are respectively slidably connected to a scraper (63).

8. The thin-walled steel pipe cutting device according to claim 7, characterized in that: The left portion of the scraper (63) is arranged in an inclined shape.

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