CN115041555A - Steel pipe bending device and method for preventing elastic deformation - Google Patents

Steel pipe bending device and method for preventing elastic deformation Download PDF

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Publication number
CN115041555A
CN115041555A CN202210892982.4A CN202210892982A CN115041555A CN 115041555 A CN115041555 A CN 115041555A CN 202210892982 A CN202210892982 A CN 202210892982A CN 115041555 A CN115041555 A CN 115041555A
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China
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bending
steel pipe
plate
pipe body
auxiliary
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CN202210892982.4A
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CN115041555B (en
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文豪
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Nantong Zhongwang Metal Products Co ltd
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Nantong Zhongwang Metal Products Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/08Bending rods, profiles, or tubes by passing between rollers or through a curved die

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

Abstract

The invention provides a steel pipe bending device capable of preventing elastic deformation, wherein an auxiliary assembly is arranged on a processing table and comprises an auxiliary plate, pressure sensors are symmetrically arranged in the auxiliary plate, the auxiliary plate is an arc-shaped plate, pressure plates for limiting a steel pipe body are symmetrically arranged on the inner side of the auxiliary plate, an arc-shaped contact surface for being attached to the steel pipe body is arranged on one side of each pressure plate, springs are arranged on the other side of each pressure plate, the other ends of the springs are arranged on the pressure sensors, and the deformation of the tail end of the steel pipe and the pipe wall close to the tail end is avoided by adding the auxiliary assembly.

Description

Steel pipe bending device and method for preventing elastic deformation
Technical Field
The invention belongs to the technical field of steel pipe processing, and particularly relates to a steel pipe bending device and method capable of preventing elastic deformation.
Background
The steel pipe is not only used for conveying fluid and powdery solid, exchanging heat energy and manufacturing mechanical parts and containers, but also is an economic steel, the steel pipe is used for manufacturing building structure net racks, pillars and mechanical supports, the weight can be reduced, the metal can be saved by 20-40%, the industrialized mechanized construction can be realized, the investment and the maintenance cost are saved, when the steel pipe is applied to the occasions, the steel pipe needs to be further processed, such as cutting and bending, and due to the characteristics of the steel pipe, the steel pipe is easy to elastically deform in the bending process.
For example, a publication No. CN112916678A discloses a steel tube bending machine, which includes: the bending mechanism comprises a bending driving mechanism, a pushing control mechanism, a bending wheel mechanism, a spacing adjusting mechanism, a fixed bending wheel mechanism, a limiting deviation-preventing mechanism and a rack; the bending driving mechanism is fixedly connected to the lower end of the rack; the bending driving mechanism is in transmission connection with the pushing control mechanism; the pushing control mechanism is connected to the lower end of the rack in a matching manner; the pushing control mechanism is in transmission connection with the two bending wheel mechanisms; the middle parts of the two bending wheel mechanisms are oppositely matched with the two ends of the spacing adjusting mechanism in a sliding manner; the spacing adjusting mechanism is connected to the rack in a matching manner; the fixed bending wheel mechanism is fixedly connected to the middle of the top surface of the rack; the fixed bending wheel mechanism and the two bending wheel mechanisms are arranged, so that the two ends of the steel pipe can be subjected to bilateral bending treatment while the steel pipe is effectively positioned and fixed, and the bending efficiency of the steel pipe is improved.
In the steel pipe bending machine, when the bending wheel bends a steel pipe, the pipe wall at the tail end of the steel pipe and close to the tail end is easy to deform due to stress of the bent part of the steel pipe, and if two steel pipes are spliced, the steel pipes cannot be clamped due to deformation of the steel pipes, the steel pipes are further regulated by contacting with each other, so that the tail end of the pipe wall and the part close to the tail end of the pipe wall deform during bending of the steel pipe, and the steel pipe bending device capable of preventing elastic deformation is designed.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a steel pipe bending device and a method thereof for preventing elastic deformation.
A steel pipe bending device for preventing elastic deformation comprises:
the auxiliary assembly is installed on the processing table and comprises an auxiliary plate, pressure sensors are symmetrically arranged in the auxiliary plate, the auxiliary plate is an arc-shaped plate, pressure plates used for limiting the steel pipe body are symmetrically arranged on the inner side of the auxiliary plate, a cambered surface contact surface used for being attached to the steel pipe body is arranged on one side of each pressure plate, a spring is installed on the other side of each pressure plate, and the other end of each spring is installed on the corresponding pressure sensor.
Further, install the auxiliary stand on the processing bench, the auxiliary assembly installs on the auxiliary stand, and the auxiliary stand bottom is equipped with the dovetail, and the cylinder is installed to auxiliary board one end, through the distance between cylinder control auxiliary board and the steel pipe body, the cylinder is installed in the activity limiting plate bottom, activity limiting plate top is equipped with the dovetail block, and when the auxiliary assembly installed on the auxiliary stand, the dovetail block was located in the dovetail, made activity limiting plate remove along the dovetail through external motor.
Further, the auxiliary support is arranged on the diagonal line of the processing table, and the top beam of the auxiliary support is parallel to the diagonal line of the processing table.
Further, the processing bench is provided with a bending assembly, the bending assembly is located below the auxiliary assembly, the bending assembly comprises a one-layer bending platform, a two-layer bending platform and a bending compression roller, the one-layer bending platform is installed on the processing bench, the two-layer bending platform is installed on the one-layer bending platform, the two-layer bending platform is provided with a linkage rod, the linkage rod is provided with a rotating shaft, the rotating shaft is provided with the bending compression roller, the bottom end of the bending compression roller is fixedly connected with a connecting plate, the vertical end of the linkage rod is provided with a vertical sliding rail, one end of the connecting plate is connected onto the vertical sliding rail in a sliding mode, and the top end of the rotating shaft is provided with a driving motor.
Further, the one deck platform of bending is located the revolving stage top, and the revolving stage bottom is connected with the motor, installs the bottom slide rail on the revolving stage, the bottom slide rail is located one deck platform one side of bending, installs the slip table on the slide rail of bottom, and the pivot bottom is rotated with the slip table and is connected, is equipped with cell body and top layer slide rail on the gangbar, and the pivot is passed slip table and cell body with top layer slide rail connection and is extended to the cell body top, is equipped with the spout that corresponds with the cell body on the top layer slide rail, the pivot axle body is equipped with the screw thread, connecting plate, the compression roller of bending and pivot threaded connection.
Furthermore, the linkage rod is of an inverted L shape, one end of the linkage rod is rotatably connected with the two layers of bending tables, the other end of the linkage rod is fixedly installed on the rotary table, the linkage rod rotates along with the rotation of the rotary table, and the bottom surface of the linkage rod is higher than that of the one layer of bending table.
Further, processing bench is equipped with horizontal fixed subassembly and vertical fixed subassembly, horizontal fixed subassembly is including keeping off wheel and transmission platform, the lifter is installed all around to transmission platform bottom, installs the backup pad on the transmission platform, and the backup pad is the U type, is equipped with the transmission subassembly that is used for transmitting the steel pipe body in the backup pad, and the lifter work makes transmission subassembly's transmission plane correspond with the subassembly of bending.
Furthermore, the conveying table is symmetrically provided with guide rails, the supporting plate is connected to the guide rails, the vertical ends of the supporting plate are evenly provided with blocking wheels at intervals, the blocking wheels are rotatably connected with the supporting plate, and the structure of the longitudinal fixing assembly is the same as that of the transverse fixing assembly.
Based on the steel pipe bending device for preventing elastic deformation, the invention also provides a using method of the steel pipe bending device for preventing elastic deformation, which comprises the following steps:
the method comprises the following steps: the lifting rod adjusts the height of the transmission platform, so that when the steel pipe body is positioned on the transmission assembly, the position of the steel pipe body is aligned with the bending surface of the second layer of bending platform;
step two: the steel pipe body is arranged on the supporting plate, the blocking wheels are in contact with the surface of the steel pipe body, the transmission assembly is started to convey the steel pipe body forwards, and the blocking wheels limit the deformation of one end of the steel pipe body when the steel pipe body is bent;
step three: after the bending compression roller moves to the steel pipe body to be compressed, the motor drives the rotary table to rotate, the linkage rod rotates along with the rotary table, and the steel pipe body is bent through the bending compression roller;
step four: when the steel pipe body is bent, the movable limiting plate on the auxiliary support moves along the dovetail groove, and the air cylinder pushes the auxiliary plate to press the other end of the bent part of the steel pipe body;
step five: and after the pressure value applied to the steel pipe body by the pressure plate reaches the threshold value set by the pressure sensor, the air cylinder stops working.
Furthermore, in the first step, when the first layer of bending table is used, the lifting rod pulls down the transmission table, and the supporting plate moves along the guide rail through external force; the driving motor drives the rotating shaft to rotate, and the connecting plate drives the bending press roller to move downwards until the bending press roller is positioned on one side of the first layer of bending table.
The invention has the beneficial effects that:
the auxiliary assembly is arranged on the machining table, and the auxiliary plate and the pressure plate apply pressure to the pipe wall of the bending section of the steel pipe body to prevent the steel pipe body from deforming due to bending;
in order to prevent the deformation of the steel pipe body caused by the excessive pressure applied by the pressure plate, a pressure sensor and a spring are arranged between the pressure plate and the auxiliary plate, and the threshold value of the pressure sensor is the maximum pressure applied by the pressure plate to the steel pipe body;
the processing table is provided with a transverse fixing component and a longitudinal fixing component, and in order to improve the processing efficiency, the transverse fixing component and the longitudinal fixing component can work together and act alternately in time, and the forward rotation and the reverse rotation of the rotary table are matched to realize the double bending action.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a top view of the present invention;
FIG. 2 is a top view of the lateral securing assembly of the present invention;
FIG. 3 is a left side view of the support plate of the present invention;
FIG. 4 is a front view of the present invention;
FIG. 5 is a schematic view of a bending assembly of the present invention;
FIG. 6 is a left side view of the connector panel of the present invention;
FIG. 7 is a top view of the auxiliary assembly of the present invention;
FIG. 8 is a front view of an auxiliary plate of the present invention;
fig. 9 is a top view of the movable restriction plate of the present invention.
Labeled as: 100. a transverse fixing component;
101. a transmission assembly; 102. a steel pipe body; 103. a transfer station; 104. a support plate; 105. a catch wheel; 106. a guide rail; 107. a lifting rod;
200. a processing table;
300. bending the assembly;
301. a motor; 302. a turntable; 303. a layer of bending table; 304. a second layer of bending table; 305. a linkage rod; 306. a trough body; 307. a drive motor; 308. a top layer slide rail; 309. bending the compression roller; 310. a connecting plate; 311. a vertical slide rail; 312. a rotating shaft; 313. a sliding table; 314. a bottom slide rail;
400. an auxiliary component;
401. a cylinder; 402. a pressure plate; 403. an auxiliary plate; 404. a pressure sensor; 405. a spring; 406. a dovetail groove; 407. a movable limit plate; 408. an auxiliary support; 409. a dovetail block;
500. and the assembly is longitudinally fixed.
Detailed Description
Example one
As shown in fig. 1 and 4, a steel pipe bending apparatus for preventing elastic deformation, a transverse fixing assembly 100 is arranged on a processing table 200, the transverse fixing assembly 100 comprises a catch wheel 105 and a transmission table 103, lifting rods 107 are arranged around the bottom end of the transmission table 103, and the lifting rods 107 have different strokes, wherein the bottom surface of the lifting rod 107 on one side of the transmission table 103 is flush with the bottom surface of the processing table 200, the stroke of the lifting rod 107 is long, the lifting rod 107 on the other side of the transmission table 103 is arranged on the processing table 200, and the height position of the transverse fixing assembly 100 is adjusted through the lifting rod 107.
As shown in fig. 2 to 3, a support plate 104 is mounted on the transfer table 103, and a transfer unit 101 for transferring the steel pipe body 102 is provided in the support plate 104 in order to automatically transfer the steel pipe body 102 to the bending unit 300, and the support plate 104 is U-shaped in order to limit a transfer trajectory of the steel pipe body 102.
The vertical ends of the supporting plate 104 are uniformly provided with catch wheels 105 at intervals, the deformation of the steel pipe body 102 during bending is further limited by the catch wheels 105, and the catch wheels 105 are rotatably connected with the supporting plate 104.
When the steel pipe body 102 is positioned on the transmission assembly 101, the lifting rod 107 works to enable the transmission plane of the transmission assembly 101 to correspond to the bending assembly 300, namely the front end of the steel pipe body 102 corresponds to the bending surface of the bending platform.
As shown in fig. 4 to 6, the processing table 200 is provided with a bending assembly 300 and a turntable 302, the bending assembly 300 is located below the auxiliary assembly 400, the bending assembly 300 includes a first-layer bending table 303, a second-layer bending table 304 and a bending pressing roller 309, the first-layer bending table 303 is mounted on the processing table 200, the second-layer bending table 304 is mounted on the first-layer bending table 303, and the positions of the first-layer bending table 303 and the second-layer bending table 304 are fixed.
The first-layer bending table 303 is located above the rotary table 302, the bottom end of the rotary table 302 is connected with a motor 301, the motor 301 drives the rotary table 302 to rotate, and the bending press roller 309 is located between the second-layer bending table 304 and the rotary table 302 and rotates around the center of the rotary table 302.
The two-layer bending platform 304 is provided with a linkage rod 305, the linkage rod 305 is provided with a rotating shaft 312, the rotating shaft 312 is provided with a bending press roller 309, the bottom end of the bending press roller 309 is fixedly connected with a connecting plate 310, the vertical end of the linkage rod 305 is provided with a vertical slide rail 311, and one end of the connecting plate 310 is slidably connected onto the vertical slide rail 311.
Under the action of external force, the connecting plate 310 moves on the vertical sliding rail 311, and as the connecting plate 310 is fixedly connected with the bending compression roller 309, the bending compression roller 309 moves along with the movement of the connecting plate 310.
The linkage rod 305 is in an inverted L shape, one end of the linkage rod 305 is rotatably connected with the two layers of bending tables 304, the other end of the linkage rod 305 is fixedly installed on the rotary table 302, the linkage rod 305 rotates along with the rotation of the rotary table 302, and the bottom surface of the linkage rod 305 is higher than that of the one layer of bending tables 303.
The motor 301 drives the rotary table 302 to rotate, one end of the linkage rod 305 rotates along with the rotary table 302 and is matched with the conveying action of the conveying assembly 101, one side of the steel pipe body 102 is attached to the bending surface of the two-layer bending table 304, and the bending surface of the bending compression roller 309 extrudes the steel pipe body 102 to realize bending of the steel pipe body 102.
As shown in fig. 7 to 9, the auxiliary assembly 400 is mounted on the processing table 200, and the auxiliary assembly 400 includes an auxiliary plate 403, and pressure sensors 404 are symmetrically disposed in the auxiliary plate 403.
In order to apply pressure to the pipe wall of the bending section of the steel pipe body to offset the deformation force, pressure plates 402 for limiting the steel pipe body 102 are symmetrically arranged on the inner sides of the auxiliary plates 403, in order to facilitate the adhesion of the pipe wall of the steel pipe body 102, the auxiliary plates 403 are arc-shaped plates, and an arc-shaped contact surface for adhesion with the steel pipe body 102 is arranged on one side of each pressure plate 402.
The other side of the pressure plate 402 is provided with a spring 405, and the other end of the spring 405 is provided with a pressure sensor 404, and the threshold value set by the pressure sensor 404 is the pressure applied by the pressure plate 402 to the steel plate body 102.
The air cylinder 401 is installed at one end of the auxiliary plate 403, the air cylinder 401 is installed at the bottom end of the movable limit plate 407, the distance between the auxiliary plate 403 and the steel pipe body 102 is controlled by the air cylinder 401, and the purpose of providing springs inside the pressure plate 402 and the auxiliary plate 403 is to facilitate adjustment of the pressure applied to the steel pipe body 102, and if the pressure is applied at an excessive speed, the steel pipe body 102 may be deformed.
The auxiliary bracket 408 is installed on the machining table 200, the auxiliary assembly 400 is installed on the auxiliary bracket 408, the dovetail groove 406 is formed in the bottom end of the auxiliary bracket 408, the dovetail block 409 is arranged at the top end of the movable limiting plate 407, when the auxiliary assembly 400 is installed on the auxiliary bracket 408, the dovetail block 409 is located in the dovetail groove 406, and the movable limiting plate 407 moves along the dovetail groove 406 through external force.
Based on the embodiment, the invention provides a use method of a steel pipe bending device for preventing elastic deformation, which comprises the following steps:
selecting a two-layer bending platform 304 for processing:
the lifting rod 107 adjusts the height of the transmission platform 103, so that when the steel pipe body 102 is positioned on the transmission assembly 101, the front end surface of the steel pipe body 102 is aligned with the bending surface of the two-layer bending platform 304;
the steel pipe body 102 is arranged on the supporting plate 104, the catch wheel 105 is in surface contact with the steel pipe body 102, the transmission assembly 101 is started to transmit the steel pipe body 102 to the bending assembly 300, and the catch wheel 105 limits deformation of one end of the steel pipe body 102 when the steel pipe body 102 is bent;
after the bending pressing roller 309 moves to press the steel pipe body 102, the motor 301 drives the rotary table 302 to rotate, the linkage rod 305 rotates along with the rotary table 302, and the steel pipe body 102 is bent through the bending pressing roller 309;
when the steel pipe body 102 is bent, the movable limiting plate 407 on the auxiliary support 408 moves along the dovetail groove 406, and the air cylinder 401 pushes the auxiliary plate 403 to press the other end of the bent part of the steel pipe body 102;
when the bending angle approaches 90 °, the air cylinder 401 pushes the auxiliary plate 403 until the bending is completed together with the bending action;
when the pressure value applied to the steel pipe body 102 by the pressure plate 402 reaches the threshold value set by the pressure sensor 404, the operation of the air cylinder 401 is stopped.
Example two
On the basis of the first embodiment, as shown in fig. 2, in order to adjust the position of the steel pipe body 102, the transmission table 103 is symmetrically provided with the guide rails 106, other components and principles of the first embodiment are the same as those of the first embodiment, the support plate 104 is connected to the guide rails 106, the position of the support plate 104 on the guide rails 106 is changed, that is, the contact surface between the steel pipe body 102 and the bending table is adjusted, taking the two-layer bending table 304 as an example, the state of the steel pipe body 102 is divided into two types, and the first type is that the front end surface of the steel pipe body 102 is aligned with the rear end surface of the two-layer bending table 304; the second is that the rear end face of the steel pipe body 102 is aligned with the front end face of the two-layer bending table 304.
When the single-stage bending table 303 is used, the state of the steel pipe body 102 is: the front end face of the steel pipe body 102 is aligned with the rear end face of the first layer of bending table 303; the rear end face of the steel pipe body 102 is aligned with the front end face of the one-layer bending stage 303.
When the one-stage bending table 303 is used, the lifting rod 107 pulls down the transfer table 103, and the support plate 104 is moved along the guide rail 106 by an external force.
In order to match with the replacement of the bending table, as shown in fig. 4 to 5, the position of the bending press roller is set to be adjustable, a bottom slide rail 314 is installed on the rotary table 302, the bottom slide rail 314 is located on one side of the first layer of bending table 303, a slide table 313 is installed on the bottom slide rail 314, the bottom end of the rotating shaft 312 is rotatably connected with the slide table 313, a groove body 306 and a top layer slide rail 308 are arranged on the linkage rod 305, the rotating shaft 312 penetrates through the slide table 313 connected with the top layer slide rail 308 and the groove body 306 and extends to the upper side of the groove body 306, and a sliding groove corresponding to the groove body 306 is arranged on the top layer slide rail 308.
The slide table 313 moves on the bottom slide rail 314 and the top slide rail 308, and adjusts the distance between the bending press roller 309 and the first-layer bending stage 303 and the second-layer bending stage 304.
In order to facilitate reliable movement of the bending press roller 309, a driving motor 307 is installed at the top end of the rotating shaft 312, a shaft body of the rotating shaft 312 is provided with threads, the connecting plate 310 and the bending press roller 309 are in threaded connection with the rotating shaft 312, the driving motor 307 drives the rotating shaft 312 to rotate, and the connecting plate 310 drives the bending press roller 309 to move downwards until the bending press roller 309 is located on one side of the layer of bending table 303.
EXAMPLE III
In addition to the above-described second embodiment, in order to improve the bending efficiency, as shown in fig. 1, the vertical fixing unit 500 is further provided on the processing table 200, the structure of the vertical fixing unit 500 is the same as that of the horizontal fixing unit 100, and the remaining components and principles of this embodiment are the same as those of the second embodiment.
The auxiliary support 408 is installed on a diagonal line of the processing table 200, a top beam of the auxiliary support 408 is parallel to the diagonal line of the processing table 200, a plurality of groups of cylinders 401 can be installed on the auxiliary support 408, and each group of cylinders 401 are connected through a plate.
The first layer bending station 303 and the second layer bending station 304 operate synchronously:
the position of the steel pipe body on the transverse fixing assembly 100 corresponds to the position of the first-layer bending platform 303, the position of the steel pipe body on the longitudinal fixing assembly 500 corresponds to the position of the second-layer bending platform 304, and the linkage rod 305 is firstly vertical to the advancing direction of the steel pipe body on the transverse fixing assembly 100;
after the turntable 302 rotates 90 degrees clockwise, the driving motor 307 drives the rotating shaft 312 to rotate, the connecting plate 310 moves upwards until the bending press roller 309 is positioned on one side of the two-layer bending table 304, the sliding table 313 moves towards the two-layer bending table 304 to enable the two-layer bending table to be attached to a steel pipe body, and the turntable 302 rotates 90 degrees counterclockwise, so that alternate bending processing is achieved, and processing efficiency is improved.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a prevent steel pipe bending device of elastic deformation which characterized in that includes:
the auxiliary assembly (400) is installed on the machining table (200), the auxiliary assembly (400) comprises an auxiliary plate (403), pressure sensors (404) are symmetrically arranged in the auxiliary plate (403), the auxiliary plate (403) is an arc-shaped plate, pressure plates (402) used for limiting the steel pipe body (102) are symmetrically arranged on the inner side of the auxiliary plate (403), an arc-shaped contact surface used for being attached to the steel pipe body (102) is arranged on one side of each pressure plate (402), a spring (405) is installed on the other side of each pressure plate (402), and the other end of each spring (405) is installed on the corresponding pressure sensor (404).
2. The steel pipe bending device capable of preventing elastic deformation according to claim 1, wherein an auxiliary support (408) is mounted on the machining table (200), the auxiliary assembly (400) is mounted on the auxiliary support (408), a dovetail groove (406) is formed in the bottom end of the auxiliary support (408), an air cylinder (401) is mounted at one end of the auxiliary plate (403), the distance between the auxiliary plate (403) and the steel pipe body (102) is controlled through the air cylinder (401), the air cylinder is mounted at the bottom end of the movable limiting plate (407), a dovetail block (409) is arranged at the top end of the movable limiting plate (407), when the auxiliary assembly (400) is mounted on the auxiliary support (408), the dovetail block (409) is located in the dovetail groove (406), and the movable limiting plate (407) is moved along the dovetail groove (406) through an external motor.
3. The apparatus for bending steel pipes with prevention of elastic deformation according to claim 2, wherein the auxiliary support (408) is installed on a diagonal line of the machining table (200), and a top beam of the auxiliary support (408) is parallel to the diagonal line of the machining table (200).
4. The steel pipe bending device capable of preventing elastic deformation according to claim 1, wherein the processing table (200) is provided with a bending assembly (300), the bending assembly (300) is located below the auxiliary assembly (400), the bending assembly (300) comprises a first layer bending table (303), a second layer bending table (304) and a bending compression roller (309), the first layer bending table (303) is installed on the processing table (200), the second layer bending table (304) is installed on the first layer bending table (303), the second layer bending table (304) is provided with a linkage rod (305), the linkage rod (305) is provided with a rotating shaft (312), the rotating shaft (312) is provided with the bending compression roller (309), the bottom end of the bending compression roller (309) is fixedly connected with a connecting plate (310), the vertical end of the linkage rod (305) is provided with a vertical sliding rail (311), one end of the connecting plate (310) is slidably connected to the vertical sliding rail (311), and a driving motor (307) is installed at the top end of the rotating shaft (312).
5. The apparatus for bending a steel pipe against elastic deformation according to claim 4, the layer of bending platform (303) is positioned above the rotary table (302), the bottom end of the rotary table (302) is connected with a motor (301), a bottom sliding rail (314) is arranged on the rotary table (302), the bottom sliding rail (314) is positioned on one side of the one-layer bending platform (303), a sliding table (313) is installed on the bottom sliding rail (314), the bottom end of the rotating shaft (312) is rotatably connected with the sliding table (313), a groove body (306) and a top layer sliding rail (308) are arranged on the linkage rod (305), the rotating shaft (312) penetrates through the sliding table (313) and the groove body (306) connected with the top layer sliding rail (308) and extends to the upper part of the groove body (306), a sliding groove corresponding to the groove body (306) is arranged on the top layer sliding rail (308), the shaft body of the rotating shaft (312) is provided with threads, and the connecting plate (310) and the bending press roller (309) are in threaded connection with the rotating shaft (312).
6. The steel pipe bending device capable of preventing elastic deformation according to claim 5, wherein the linkage rod (305) is of an inverted L shape, one end of the linkage rod (305) is rotatably connected with the two-layer bending platform (304), the other end of the linkage rod (305) is fixedly installed on the rotary table (302), the linkage rod (305) rotates along with the rotation of the rotary table (302), and the bottom surface of the linkage rod (305) is higher than that of the one-layer bending platform (303).
7. The steel pipe bending device capable of preventing elastic deformation according to claim 1, wherein a transverse fixing component (100) and a longitudinal fixing component (500) are arranged on the processing table (200), the transverse fixing component (100) comprises a catch wheel (105) and a transmission table (103), lifting rods (107) are arranged on the periphery of the bottom end of the transmission table (103), a supporting plate (104) is arranged on the transmission table (103), the supporting plate (104) is U-shaped, a transmission component (101) used for transmitting the steel pipe body (102) is arranged in the supporting plate (104), and the lifting rods (107) work to enable a transmission plane of the transmission component (101) to correspond to the bending component (300).
8. The steel pipe bending device capable of preventing elastic deformation according to claim 7, wherein guide rails (106) are symmetrically arranged on the conveying table (103), the supporting plate (104) is connected to the guide rails (106), blocking wheels (105) are uniformly arranged at intervals at the vertical end of the supporting plate (104), the blocking wheels (105) are rotatably connected with the supporting plate (104), and the structure of the longitudinal fixing assembly (500) is the same as that of the transverse fixing assembly (100).
9. A method of using the steel pipe bending apparatus for preventing elastic deformation according to any one of claims 1 to 8, comprising the steps of:
s1, adjusting the height of the transmission platform (103) by the lifting rod (107), and aligning the position of the steel pipe body (102) with the bending surface of the two-layer bending platform (304) when the steel pipe body (102) is positioned on the transmission assembly (101);
s2, placing the steel pipe body (102) on a supporting plate (104), enabling a catch wheel (105) to be in surface contact with the steel pipe body (102), starting a transmission assembly (101), conveying the steel pipe body (102) forwards, and limiting deformation of one end of the steel pipe body (102) when the steel pipe body (102) is bent by the catch wheel (105);
s3, after the bending press roller (309) is moved to press the steel pipe body (102), the motor (301) drives the rotary table (302) to rotate, the linkage rod (305) rotates along with the rotary table (302), and the steel pipe body (102) is bent through the bending press roller (309);
s4, when the steel pipe body (102) is bent, the movable limiting plate (407) on the auxiliary support (408) moves along the dovetail groove (406), and the air cylinder (401) pushes the auxiliary plate (403) to press the other end of the bent part of the steel pipe body (102);
s5, when the pressure value applied to the steel pipe body (102) by the pressure plate (402) reaches the threshold value set by the pressure sensor (404), the air cylinder (401) stops working.
10. The method of using the steel pipe bending apparatus for preventing elastic deformation according to claim 9, wherein in the step S1, when the one-stage bending table (303) is used, the lifting rod (107) pulls down the transfer table (103) to move the support plate (104) along the guide rail (106) by an external force; the driving motor (307) drives the rotating shaft (312) to rotate, and the connecting plate (310) drives the bending press roller (309) to move downwards until the bending press roller (309) is located on one side of the layer of bending table (303).
CN202210892982.4A 2022-07-27 Steel pipe bending device and method for preventing elastic deformation Active CN115041555B (en)

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CN202210892982.4A CN115041555B (en) 2022-07-27 Steel pipe bending device and method for preventing elastic deformation

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TW201204487A (en) * 2010-07-26 2012-02-01 Chiao Sheng Machinery Co Ltd Heat bending machine for pipes
CN104889212A (en) * 2015-06-11 2015-09-09 张家港江苏科技大学产业技术研究院 Wheel mould device for two-way pipe bending
CN108941282A (en) * 2018-06-04 2018-12-07 佛山市信智宇科技服务有限公司 A kind of aluminum profile swan neck system
CN109277442A (en) * 2017-07-21 2019-01-29 中国铁建重工集团有限公司 A kind of F fashioned iron bending apparatus and method
CN209272198U (en) * 2018-11-12 2019-08-20 漳州东荣工贸有限公司 A kind of steel pipe automation bending tube forming system
CN111229892A (en) * 2020-02-24 2020-06-05 巨特钢业有限公司 Bender of high accuracy steel pipe
CN111589914A (en) * 2020-06-03 2020-08-28 肖国辉 Steel pipe processingequipment that bends
WO2020182422A1 (en) * 2019-03-12 2020-09-17 Bayerische Motoren Werke Aktiengesellschaft Method for controlling a bending process for bending a bending body
CN213793612U (en) * 2020-11-26 2021-07-27 永康市五环工具有限公司 Steel pipe bending device is used in wardrobe production
CN113319168A (en) * 2021-05-19 2021-08-31 蒙城财富汽车有限公司 Semitrailer frame steel pipe cutting and bending device and using method thereof
CN114178366A (en) * 2021-12-13 2022-03-15 苏州木渎特钢科技有限公司 Automatic pipe fitting bending device who facilitates use
CN216966115U (en) * 2022-03-23 2022-07-15 苍南县伟峰建设工程有限公司 Building engineering bends and uses auxiliary device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201204487A (en) * 2010-07-26 2012-02-01 Chiao Sheng Machinery Co Ltd Heat bending machine for pipes
CN104889212A (en) * 2015-06-11 2015-09-09 张家港江苏科技大学产业技术研究院 Wheel mould device for two-way pipe bending
CN109277442A (en) * 2017-07-21 2019-01-29 中国铁建重工集团有限公司 A kind of F fashioned iron bending apparatus and method
CN108941282A (en) * 2018-06-04 2018-12-07 佛山市信智宇科技服务有限公司 A kind of aluminum profile swan neck system
CN209272198U (en) * 2018-11-12 2019-08-20 漳州东荣工贸有限公司 A kind of steel pipe automation bending tube forming system
WO2020182422A1 (en) * 2019-03-12 2020-09-17 Bayerische Motoren Werke Aktiengesellschaft Method for controlling a bending process for bending a bending body
CN111229892A (en) * 2020-02-24 2020-06-05 巨特钢业有限公司 Bender of high accuracy steel pipe
CN111589914A (en) * 2020-06-03 2020-08-28 肖国辉 Steel pipe processingequipment that bends
CN213793612U (en) * 2020-11-26 2021-07-27 永康市五环工具有限公司 Steel pipe bending device is used in wardrobe production
CN113319168A (en) * 2021-05-19 2021-08-31 蒙城财富汽车有限公司 Semitrailer frame steel pipe cutting and bending device and using method thereof
CN114178366A (en) * 2021-12-13 2022-03-15 苏州木渎特钢科技有限公司 Automatic pipe fitting bending device who facilitates use
CN216966115U (en) * 2022-03-23 2022-07-15 苍南县伟峰建设工程有限公司 Building engineering bends and uses auxiliary device

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