CN116174603A - Production equipment and production method for seamless metal bent pipe - Google Patents

Production equipment and production method for seamless metal bent pipe Download PDF

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Publication number
CN116174603A
CN116174603A CN202310248988.2A CN202310248988A CN116174603A CN 116174603 A CN116174603 A CN 116174603A CN 202310248988 A CN202310248988 A CN 202310248988A CN 116174603 A CN116174603 A CN 116174603A
Authority
CN
China
Prior art keywords
steel pipe
pipe
sliding
rotating arm
positioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310248988.2A
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Chinese (zh)
Inventor
赵建宾
张金发
程俊华
赵兰梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Binhong Petrochemical Equipment Co ltd
Original Assignee
Hebei Binhong Petrochemical Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Binhong Petrochemical Equipment Co ltd filed Critical Hebei Binhong Petrochemical Equipment Co ltd
Priority to CN202310248988.2A priority Critical patent/CN116174603A/en
Publication of CN116174603A publication Critical patent/CN116174603A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/003—Positioning devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/006—Feeding elongated articles, such as tubes, bars, or profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/026—Combination of two or more feeding devices provided for in B21D43/04 - B21D43/18
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
    • B21D7/162—Heating equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
    • B21D7/165—Cooling equipment

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The invention discloses a production device and a production method of a seamless metal bent pipe.A supporting roller is arranged on a supporting frame, a positioning roller for positioning a steel pipe is arranged on the supporting frame, and a power mechanism for pushing the steel pipe to move on the supporting frame is arranged on the supporting frame; one end of the support frame is provided with a mounting seat, and the end of the support frame is provided with a positioning mechanism with a positioning function on the steel pipe; an induction coil and a water spray pipe are arranged at the outlet of the mounting seat, and a forming mechanism for bending the steel pipe is arranged at one side of the mounting seat; the forming mechanism comprises a rotating arm, one end of the rotating arm is connected with the steel pipe, the other end of the rotating arm is provided with a rotating structure for driving the rotating arm to rotate, a supporting rod is arranged on the rotating arm between the rotating structure and the steel pipe, the top end of the supporting rod is connected with the rotating arm, and the bottom end of the supporting rod is provided with a roller. By adopting the seamless metal bent pipe production equipment and the production method, the steel pipe is stably pulled by the rotating arm, so that the bent pipe effect of the steel pipe is improved.

Description

Production equipment and production method for seamless metal bent pipe
Technical Field
The invention relates to the technical field of bent pipe production, in particular to seamless metal bent pipe production equipment and a production method.
Background
The metal seamless bent pipe is widely used in oil transportation, gas transportation, transfusion and engineering bridge construction. The preparation of the metal seamless bent pipe is generally produced by a pipe bending machine, the existing pipe bending machine generally bends a metal pipe by adopting a pipe bending die, but the pipe bending die is generally suitable for the production of small-caliber bent pipes. For the large-caliber bent pipe, a welding mode is generally adopted for production, but the welded bent pipe has a certain welding seam, and the welding seam is a functional weak area, so that the quality and the service life of the bent pipe are affected. The steel pipe produced by adopting the cold stewing and hot stewing processes has no better positioning effect on the steel pipe, and the steel pipe is easy to shake in the bending process, so that the forming effect of the bent pipe is affected.
Disclosure of Invention
The invention aims to provide seamless metal bent pipe production equipment, which stably pulls a steel pipe through a rotating arm and improves the bent pipe effect of the steel pipe. Another object of the present invention is to provide a method for producing a seamless metal bent pipe.
In order to achieve the above purpose, the invention provides a seamless metal bent pipe production device, which comprises a support frame, wherein a support roller for supporting a steel pipe is arranged on the support frame, two ends of the support roller are rotatably connected with the support frame, positioning rollers for positioning the steel pipe are arranged on the support frame, the positioning rollers are positioned on two sides of the steel pipe, and a power mechanism for pushing the steel pipe to move on the support frame is arranged on the support frame; one end of the support frame is provided with a mounting seat, and the end of the support frame positioned in the mounting seat is provided with a positioning mechanism with a positioning function on the steel pipe; an induction coil and a water spray pipe are arranged at the outlet of the mounting seat, and a forming mechanism for bending the steel pipe is arranged at one side of the mounting seat; the forming mechanism comprises a rotating arm, one end of the rotating arm is connected with the steel pipe, the other end of the rotating arm is provided with a rotating structure for driving the rotating arm to rotate, a supporting rod is arranged on the rotating arm between the rotating structure and the steel pipe, the top end of the supporting rod is connected with the rotating arm, and the bottom end of the supporting rod is provided with a roller.
Preferably, the positioning rollers are arranged on the mounting rod, two ends of the mounting rod are fixed on the supporting frame, the mounting rod is provided with a strip-shaped adjusting hole for adjusting the distance between the positioning rollers, and the mounting shaft of the positioning rollers passes through the adjusting hole and is in locking connection with the mounting rod through a nut; the mounting rods and the supporting rollers are distributed on the supporting frame at intervals.
Preferably, the power mechanism comprises a pushing cylinder, the pushing cylinder is fixed in the middle of the supporting frame, a pushing plate for pushing the steel pipe to move is arranged on a telescopic rod of the pushing cylinder, and the pushing plate is located between the two positioning rollers.
Preferably, the positioning mechanism comprises a supporting roller, a pressing roller and positioning rollers, wherein the positioning rollers are positioned between the supporting roller and the pressing roller, the supporting roller is positioned below the steel pipe, the pressing roller is positioned above the steel pipe, and the positioning rollers are positioned on two sides of the steel pipe; the upright posts arranged on the two sides of the support frame are provided with height adjusting structures of the press rollers.
Preferably, the height adjusting structure comprises a lifting cylinder, the lifting cylinder is arranged at the top end of the upright post, a bearing seat is arranged on a telescopic rod of the lifting cylinder, and two ends of the compression roller are rotationally connected with the bearing seat; the two sides of the bearing seat are provided with sliding blocks, the upright posts are provided with sliding grooves matched with the sliding blocks, and the sliding blocks are positioned in the sliding grooves and are in sliding connection with the sliding grooves.
Preferably, the induction coil is sleeved outside the steel pipe, the water spraying pipe is positioned above the steel pipe, and the water spraying pipe is positioned at the downstream of the deformation part of the steel pipe.
Preferably, the rotating arm is connected with the steel pipe through a pipe clamp, the pipe clamp comprises two arc-shaped clamping plates, two ends of the two clamping plates are clamped and fixed outside the steel pipe through bolt connection, and the clamping plates are detachably fixed on the rotating arm through bolts.
Preferably, the rotating structure comprises a motor, the motor is fixedly arranged on a sliding plate, the sliding plate is arranged on a fixed seat in a sliding manner, the fixed seat is fixed on the ground, a rotating plate is arranged on an output shaft of the motor, and the rotating plate is detachably and fixedly connected with the rotating arm through a fixed plate.
Preferably, the fixing seat is provided with a cylinder for driving the sliding plate to slide on the fixing seat, the telescopic rod of the cylinder is fixedly connected with the sliding plate, the fixing seat is provided with a sliding rail with guiding function for sliding the sliding plate, the sliding plate is provided with a sliding sleeve matched with the sliding rail, and the sliding sleeve is sleeved outside the sliding rail and is in sliding connection with the sliding rail.
A seamless metal bent pipe production method based on the seamless metal bent pipe production equipment comprises the following steps:
s1, placing a steel pipe on a support frame, adjusting the position of a positioning roller on a mounting rod, enabling the positioning roller to contact the steel pipe, starting a pushing cylinder, pushing the steel pipe into a mounting seat by the pushing cylinder through a pushing plate, penetrating through an induction coil, and adjusting the height of a compression roller through a lifting cylinder, wherein the compression roller contacts the steel pipe;
s2, starting the air cylinder according to the bending radius of the steel pipe, and adjusting the distance between the motor and the steel pipe; the rotating arm is provided with a pipe clamp, the pipe clamp is clamped on the end head of the steel pipe, and the rotating arm is fixed on the rotating plate through the fixing plate;
s3, starting an induction coil, a spray pipe, a pushing cylinder and a motor, pushing the cylinder to push the steel pipe to move, heating the steel pipe by the induction coil, driving the rotating arm to rotate by the motor, bending the steel pipe, and spraying water to cool the bent steel pipe by the spray pipe;
s4, after the steel pipe is bent to the required length, closing the induction coil, the water spray pipe, the pushing cylinder and the motor, and cutting the steel pipe through a cutting machine;
s5, repeating the steps S2-S4, and bending the next bent pipe.
The seamless metal bent pipe production equipment and the production method have the advantages that:
1. the support rollers and the positioning rollers are arranged on the support frame at intervals, the support rollers and the positioning rollers are used for primarily positioning the steel pipe, the stability of the steel pipe moving on the support frame is improved, and the steel pipe can enter the installation seat smoothly.
2. The supporting roller, the pressing roller and the positioning roller which are arranged in the mounting seat position the steel pipe from the upper direction, the lower direction, the left direction and the right direction, thereby being beneficial to improving the stability of the steel pipe in the bending process and improving the bending forming effect.
3. The rotating arm is arranged right above the motor, and is used as support and traction to bend and deform the steel pipe, so that the stability of bending and deforming the steel pipe is improved, and the bend forming effect is improved.
4. The support rod is arranged on the rotating arm, and the rotating arm is supported by the support rod, so that the stability of the rotating arm in the rotating process is improved, and the bent pipe forming effect is improved.
The technical scheme of the invention is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a seamless metal elbow production apparatus and method according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a positioning mechanism of an embodiment of a production apparatus and a production method for a seamless metal bent pipe according to the present invention.
Reference numerals
1. A support frame; 2. a support roller; 3. positioning rollers; 4. a mounting rod; 5. an adjustment aperture; 6. a steel pipe; 7. a pushing cylinder; 8. a push plate; 9. a mounting base; 10. a press roller; 11. an induction coil; 12. a water spray pipe; 13. a rotating arm; 14. a pipe clamp; 15. a fixing seat; 16. a slide plate; 17. a motor; 18. a rotating plate; 19. a fixing plate; 20. a slide rail; 21. a support rod; 22. a column; 23. a bearing seat; 24. a lifting cylinder; 25. a chute; 26. a sliding block.
Detailed Description
The technical scheme of the invention is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
FIG. 1 is a schematic diagram of a production facility and a production method for a seamless metal bent pipe according to an embodiment of the present invention. As shown in the figure, the seamless metal bent pipe production equipment comprises a support frame 1, wherein the support frame 1 is of a frame structure and is fixed on the bottom surface to provide support for the whole equipment. The support frame 1 is provided with a plurality of support rollers 2 for supporting the steel pipes 6, and two ends of the support rollers 2 are rotatably connected with the support frame 1 through bearings. The support frame 1 is provided with positioning rollers 3 for positioning the steel pipes 6, and the positioning rollers 3 are positioned on two sides of the steel pipes 6. The positioning roller 3 is arranged on the mounting rod 4, and two ends of the mounting rod 4 are fixed on the support frame 1. The installation rod 4 is provided with a strip-shaped adjusting hole 5 for adjusting the distance between the positioning rollers 3, and the installation shaft of the positioning roller 3 passes through the adjusting hole 5 and is in locking connection with the installation rod 4 through a nut, so that the positioning of the positioning roller 3 on the installation rod 4 is realized. The positioning roller 3 is rotationally connected with the mounting shaft, so that the friction force of the steel tube 6 in the moving process is reduced. By adjusting the position of the positioning roller 3, the positioning requirements of the steel pipes 6 with different diameters can be realized. The steel tube 6 is positioned through the positioning roller 3, so that stability of the steel tube 6 in the moving process is improved. The mounting rods 4 and the supporting rollers 2 are distributed on the supporting frame 1 at intervals.
The supporting frame 1 is provided with a power mechanism for pushing the steel pipe 6 to move on the supporting frame 1. The power mechanism comprises a pushing cylinder 7, and the pushing cylinder 7 is fixed in the middle of the supporting frame 1. A push plate 8 for pushing the steel pipe 6 to move is arranged on the telescopic rod of the pushing cylinder 7, and the push plate 8 is positioned between the two positioning rollers 3. The pushing cylinder 7 pushes the steel tube 6 to move on the supporting roller 2 through the pushing plate 8, and power is provided for bending and forming the steel tube 6.
FIG. 2 is a schematic diagram of a positioning mechanism of an embodiment of a production apparatus and a production method for a seamless metal bent pipe according to the present invention. As shown in the figure, one end of the support frame 1 is provided with a mounting seat 9, one end of the support frame 1 is positioned in the mounting seat 9, and the mounting seat 9 is fixed on the bottom surface. The end of the support frame 1 positioned in the installation seat 9 is provided with a positioning mechanism with a positioning function on the steel pipe 6. The positioning mechanism comprises a supporting roller 2, a pressing roller 10 and a positioning roller 3, wherein the positioning roller 3 is positioned between the supporting roller 2 and the pressing roller 10. The backing roll 2 is located the below of steel pipe 6, and compression roller 10 is located the top of steel pipe 6, and locating roller 3 is located the both sides of steel pipe 6. The structure of the support roller 2 and the positioning roller 3 and the mounting structure on the support frame 1 are the same as the aforementioned support roller 2 and positioning roller 3. The supporting roller 2 and the compression roller 10 position the steel pipe 6 from the below and the top, and two positioning rollers 3 position the steel pipe 6 from the left and right directions, so that the stability of the steel pipe 6 is improved, the steel pipe 6 is prevented from shaking in the forming process, and the bending effect of the steel pipe 6 is prevented from being influenced.
The upright posts 22 fixedly arranged on the two sides of the support frame 1 are provided with a height adjusting structure of the press roller 10. The height adjusting structure includes a lifting cylinder 24, and the lifting cylinder 24 is disposed at the top end of the upright 22. A bearing seat 23 is arranged on the telescopic rod of the lifting cylinder 24, and two ends of the compression roller 10 are rotatably connected with the bearing seat 23. The two sides of the bearing seat 23 are provided with sliding blocks 26, the upright post 22 is provided with sliding grooves 25 matched with the sliding blocks 26, and the sliding blocks 26 are positioned in the sliding grooves 25 and are in sliding connection with the sliding grooves 25. The lifting cylinder 24 drives the press roller 10 to lift, so that the height of the press roller 10 is adjusted, the press roller 10 is contacted with the steel pipe 6, the steel pipe 6 is positioned, and the installation of the steel pipe 6 is also convenient, and the positioning requirement of the steel pipe 6 without diameter is met.
The exit of mount pad 9 is provided with induction coil 11 and spray pipe 12, and induction coil 11 cover is established in the outside of steel pipe 6, and induction coil 11 is used for heating steel pipe 6, heats steel pipe 6 to plastic deformation temperature, the bending of steel pipe 6 of being convenient for. The spray pipe 12 is positioned above the steel pipe 6, and the spray pipe 12 is fixed on the mounting seat 9. The spray pipe 12 is located at the downstream of the deformation of the steel pipe 6 and is used for cooling the deformed steel pipe 6, so that the strength and rigidity of the steel pipe 6 are improved, the performance degradation and deformation of the steel pipe 6 caused by the fact that the steel pipe 6 is in a high temperature area for a long time are avoided, and the forming effect of the steel pipe 6 is improved. The induction heating device and the cooling water device may be fixed to the mount 9.
One side of the mounting seat 9 is provided with a forming mechanism for bending and forming the steel pipe 6. The forming mechanism comprises a rotating arm 13, and one end of the rotating arm 13 is connected with the steel pipe 6 through a pipe clamp 14. The pipe clamp 14 comprises two arc-shaped clamping plates, and two ends of the two clamping plates are clamped and fixed outside the steel pipe 6 through bolt connection. The clamping plate is detachably fixed on the rotating arm 13 through bolts. The clamping plates are detachably connected with the rotating arm 13 through bolts, so that different clamping plates can be replaced conveniently according to the diameter of the steel pipe 6.
The other end of the rotating arm 13 is provided with a rotating structure for driving the rotating arm 13 to rotate. The rotating structure comprises a motor 17, the motor 17 is fixedly arranged on a sliding plate 16, the sliding plate 16 is slidably arranged on a fixed seat 15, and the fixed seat 15 is fixed on the ground. The output shaft of the motor 17 is fixedly provided with a rotating plate 18, and the rotating plate 18 is detachably and fixedly connected with the rotating arm 13 through a fixed plate 19. The two ends of the arc-shaped fixing plate 19 are fixed on the rotating plate 18 through screws, so that the rotating arm 13 is locked and fixed on the rotating plate 18. The swivel arm 13 is located directly above the output shaft of the motor 17.
The fixed seat 15 is fixedly provided with an air cylinder for driving the sliding plate 16 to slide on the fixed seat 15, and a telescopic rod of the air cylinder is fixedly connected with the sliding plate 16. The fixed seat 15 is provided with a sliding rail 20 with a guiding function on the sliding of the sliding plate 16, the sliding plate 16 is provided with a sliding sleeve matched with the sliding rail 20, and the sliding sleeve is sleeved outside the sliding rail 20 and is in sliding connection with the sliding rail 20. The position of the sliding plate 16 on the fixed seat 15 can be adjusted through the air cylinder, so that the distance between the motor 17 and the steel pipe 6 is adjusted, and the bending requirements of bent pipes with different diameters are met.
The rotating arm 13 is provided with a supporting rod 21, and the supporting rod 21 is positioned between the fixed seat 15 and the steel pipe 6. The top of bracing piece 21 is connected with rocking arm 13, and the bottom of bracing piece 21 is provided with the gyro wheel. The support rod 21 supports the rotating arm 13, so that the stability of the rotating arm 13 in the rotating process is improved, and the forming quality of the bent pipe is improved.
The production method of the seamless metal bent pipe comprises the following steps:
s1, placing a steel pipe 6 on a support frame 1, and adjusting the position of a positioning roller 3 on an installation rod 4 so that the positioning roller 3 contacts the steel pipe 6; starting a pushing cylinder 7, pushing the steel pipe 6 into a mounting seat 9 by the pushing cylinder 7 through a pushing plate 8, and passing through an induction coil 11; the height of the press roller 10 is adjusted through the lifting cylinder 24, and the press roller 10 is contacted with the steel pipe 6;
s2, starting the air cylinder according to the bending radius of the steel pipe 6, and adjusting the distance between the motor 17 and the steel pipe 6; the pipe clamp 14 is arranged on the swivel arm 13, the pipe clamp 14 is clamped on the end head of the steel pipe 6, and the swivel arm 13 is fixed on the swivel plate 18 through the fixing plate 19;
s3, starting an induction coil 11, a spray pipe 12, a pushing cylinder 7 and a motor 17, wherein the pushing cylinder 7 pushes the steel pipe 6 to move, the induction coil 11 heats the steel pipe 6, the motor 17 drives a rotating arm 13 to rotate, the steel pipe 6 is bent, and the spray pipe 12 sprays water to the bent steel pipe 6 for cooling;
s4, after the steel pipe 6 is bent to the required length, closing the induction coil 11, the water spraying pipe 12, the pushing cylinder 7 and the motor 17, and cutting the steel pipe 6 by the existing cutting machine;
s5, repeating the steps S2-S4, and bending the next bent pipe.
Therefore, the seamless metal bent pipe production equipment and the production method are adopted, and the steel pipe is stably pulled through the rotating arm, so that the bent pipe effect of the steel pipe is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention and not for limiting it, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the invention can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the invention.

Claims (10)

1. The utility model provides a seamless metal return bend production facility which characterized in that: the steel pipe positioning device comprises a support frame, wherein a support roller for supporting a steel pipe is arranged on the support frame, two ends of the support roller are rotatably connected with the support frame, positioning rollers for positioning the steel pipe are arranged on the support frame, the positioning rollers are positioned on two sides of the steel pipe, and a power mechanism for pushing the steel pipe to move on the support frame is arranged on the support frame; one end of the support frame is provided with a mounting seat, and the end of the support frame positioned in the mounting seat is provided with a positioning mechanism with a positioning function on the steel pipe; an induction coil and a water spray pipe are arranged at the outlet of the mounting seat, and a forming mechanism for bending the steel pipe is arranged at one side of the mounting seat; the forming mechanism comprises a rotating arm, one end of the rotating arm is connected with the steel pipe, the other end of the rotating arm is provided with a rotating structure for driving the rotating arm to rotate, a supporting rod is arranged on the rotating arm between the rotating structure and the steel pipe, the top end of the supporting rod is connected with the rotating arm, and the bottom end of the supporting rod is provided with a roller.
2. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the positioning rollers are arranged on the mounting rods, two ends of the mounting rods are fixed on the supporting frames, the mounting rods are provided with elongated adjusting holes for adjusting the distance between the positioning rollers, and the mounting shafts of the positioning rollers penetrate through the adjusting holes and are in locking connection with the mounting rods through nuts; the mounting rods and the supporting rollers are distributed on the supporting frame at intervals.
3. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the power mechanism comprises a pushing cylinder, the pushing cylinder is fixed in the middle of the supporting frame, a pushing plate for pushing the steel pipe to move is arranged on a telescopic rod of the pushing cylinder, and the pushing plate is located between the two positioning rollers.
4. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the positioning mechanism comprises a supporting roller, a pressing roller and positioning rollers, wherein the positioning rollers are positioned between the supporting roller and the pressing roller, the supporting roller is positioned below the steel pipe, the pressing roller is positioned above the steel pipe, and the positioning rollers are positioned on two sides of the steel pipe; the upright posts arranged on the two sides of the support frame are provided with height adjusting structures of the press rollers.
5. The apparatus for producing a seamless metal bent pipe according to claim 4, wherein: the height adjusting structure comprises a lifting cylinder, the lifting cylinder is arranged at the top end of the upright post, a bearing seat is arranged on a telescopic rod of the lifting cylinder, and two ends of the compression roller are rotationally connected with the bearing seat; the two sides of the bearing seat are provided with sliding blocks, the upright posts are provided with sliding grooves matched with the sliding blocks, and the sliding blocks are positioned in the sliding grooves and are in sliding connection with the sliding grooves.
6. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the induction coil is sleeved outside the steel pipe, the water spraying pipe is positioned above the steel pipe, and the water spraying pipe is positioned at the downstream of the deformation part of the steel pipe.
7. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the rotating arm is connected with the steel pipe through the pipe clamp, the pipe clamp comprises two arc-shaped clamping plates, two ends of each clamping plate are clamped and fixed outside the steel pipe through bolt connection, and the clamping plates are detachably fixed on the rotating arm through bolts.
8. The apparatus for producing a seamless metal bent pipe according to claim 1, wherein: the rotating structure comprises a motor, the motor is fixedly arranged on a sliding plate, the sliding plate is arranged on a fixing seat in a sliding mode, the fixing seat is fixed on the ground, a rotating plate is arranged on an output shaft of the motor, and the rotating plate is detachably and fixedly connected with a rotating arm through a fixing plate.
9. The apparatus for producing a seamless metal bent pipe according to claim 8, wherein: the sliding seat is provided with a cylinder for driving the sliding plate to slide on the fixed seat, a telescopic rod of the cylinder is fixedly connected with the sliding plate, the fixed seat is provided with a sliding rail with guiding function for sliding the sliding plate, the sliding plate is provided with a sliding sleeve matched with the sliding rail, and the sliding sleeve is sleeved outside the sliding rail and is in sliding connection with the sliding rail.
10. A method for producing a seamless metal bent pipe based on the apparatus for producing a seamless metal bent pipe according to any one of claims 1 to 9, comprising the steps of:
s1, placing a steel pipe on a support frame, adjusting the position of a positioning roller on a mounting rod, enabling the positioning roller to contact the steel pipe, starting a pushing cylinder, pushing the steel pipe into a mounting seat by the pushing cylinder through a pushing plate, penetrating through an induction coil, and adjusting the height of a compression roller through a lifting cylinder, wherein the compression roller contacts the steel pipe;
s2, starting the air cylinder according to the bending radius of the steel pipe, and adjusting the distance between the motor and the steel pipe; the rotating arm is provided with a pipe clamp, the pipe clamp is clamped on the end head of the steel pipe, and the rotating arm is fixed on the rotating plate through the fixing plate;
s3, starting an induction coil, a spray pipe, a pushing cylinder and a motor, pushing the cylinder to push the steel pipe to move, heating the steel pipe by the induction coil, driving the rotating arm to rotate by the motor, bending the steel pipe, and spraying water to cool the bent steel pipe by the spray pipe;
s4, after the steel pipe is bent to the required length, closing the induction coil, the water spray pipe, the pushing cylinder and the motor, and cutting the steel pipe through a cutting machine;
s5, repeating the steps S2-S4, and bending the next bent pipe.
CN202310248988.2A 2023-03-15 2023-03-15 Production equipment and production method for seamless metal bent pipe Pending CN116174603A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116786650A (en) * 2023-08-29 2023-09-22 河北恒通管件集团有限公司 Device and method for bending bent pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116786650A (en) * 2023-08-29 2023-09-22 河北恒通管件集团有限公司 Device and method for bending bent pipe
CN116786650B (en) * 2023-08-29 2023-10-24 河北恒通管件集团有限公司 Device and method for bending bent pipe

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