CN102688920A - Pipe bender and bending method using pipe bender - Google Patents
Pipe bender and bending method using pipe bender Download PDFInfo
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- CN102688920A CN102688920A CN2011104386341A CN201110438634A CN102688920A CN 102688920 A CN102688920 A CN 102688920A CN 2011104386341 A CN2011104386341 A CN 2011104386341A CN 201110438634 A CN201110438634 A CN 201110438634A CN 102688920 A CN102688920 A CN 102688920A
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- tubing
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- core head
- bending
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Abstract
The invention relates to a pipe bender, comprising a worktable, a feeding mechanism, a compacting mechanism and a pipe bending mechanism; the pipe bending mechanism comprises a mandrel fixed on the worktable, and a first roller and a second roller both of which are vertically arranged on the worktable; a plurality of guide structures are arranged on the worktable and located symmetrically on both sides of the mandrel head; the guide structures extend from the root part of the mandrel head to the tail end along the contour line of the mandrel head, and two extreme positions of the guide structures respectively correspond to the root part and the tail end of the mandrel head; the bottom parts of the two rollers are respectively slidably arranged on the corresponding guide structures; and the worktable further is provided with a driving mechanism used for respectively driving the two rollers to reciprocate between the two extreme positions of the guide structures so as to roll and bend the pipes. The invention further relates to a bending method using the pipe bender. The problem that the pipe bending mechanisms in the prior art bend the pipes only in one direction is solved.
Description
Technical field
The present invention relates to a kind of bending machine, also relate to the bending method that uses this bending machine.
Background technology
For heavy tank car, draw vehicle such as coal car, in order to guarantee safety, run through beam must adopt square tube, yet because there are some technical difficult points in the square tube bending, big multiple enterprises still adopts straight square tube to add the mode of parallels.This has not only increased cost, and makes whole vehicle body increase the weight of, and danger coefficient increases.
Present mechanical bend pipe industry is normal adopt push away curved, stretch bending, go for a stroll, bend pipe mode such as press-bending processes bend pipe; The pipe bending mechanism that uses is the one-way tube bender structure; If need the situation of a plurality of different directions bendings on tubing; Can only adopt changes the material method and solves, and labour intensity is big, and reloaded process influence machining accuracy and forming quality.
Summary of the invention
The object of the present invention is to provide a kind of bending machine, to solve the problem that bending machine of the prior art can only bend tubing facing one direction, the present invention simultaneously also provides the bending method that uses this bending machine.
In order to address the above problem; A kind of bending machine of the present invention; Comprise workbench, be located at the feed mechanism on the workbench, the pipe bending mechanism that is used to compress the hold-down mechanism of tubing and is used for bending tubing; Said pipe bending mechanism comprises and is fixedly arranged on the plug on the workbench and is vertically set on first roller and second roller on the said workbench; The bilateral symmetry that on said workbench, is positioned at this core head is provided with guide frame; Said guide frame all along this core head outline line extend by the root terminad of this core head and said guide frame two limit positions respectively with the root of said core head with terminal corresponding; The bottom of said two rollers is slidingly arranged in respectively on the corresponding said guide frame, also is provided with on this workbench to drive said two rollers respectively and between the guide frame two limit positions, move back and forth and be used for the driving mechanism of roll extrusion bending tubing.
Described guide frame is gathering sill or long guiding hole or directive slide track.
Described driving mechanism comprise two both sides that are separately positioned on said plug the output straight reciprocating motion power source and be hinged on the connecting rod on each said power source output shaft, the other end of said connecting rod is hinged on the corresponding said roller.
Said connecting rod is the U-shaped connecting rod; The two ends up and down of said two rollers is rotated respectively on two arms that are plugged in corresponding said U-shaped connecting rod oral area and to be realized hinged with said U-shaped, and the other end relative with oral area of said U-shaped connecting rod is hinged on the output shaft of corresponding power source.
Be provided with bearing between said U-shaped connecting rod and the corresponding said roller.
Be equipped with radial section on the outer peripheral face of said two rollers and be the annular groove that cooperates with the square tube roof pressure of being used for of rectangle.
A kind of bending method that uses said bending machine is characterized in that comprising following steps:
1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that a roller is fixed on guide frame withstood tubing; And drive another roller on another guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through roller roll extrusion tubing with the tubing bending.
A kind of dog leg method of using said bending machine is characterized in that comprising following steps:
1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that first roller is fixed on guide frame withstood tubing; And drive second roller on another said guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through the second roller roll extrusion tubing with the tubing bending;
4) second roller is got back to the extreme position corresponding with the core head root under drive mechanism;
5) hold-down mechanism unclamps tubing then, then continues tubing is pushed into the precalculated position and through this hold-down mechanism tubing is fixed to said core head direction with feed mechanism;
6) then utilize driving mechanism that the extreme position corresponding with the core head root that second roller is fixed on guide frame withstood tubing; And drive first roller on another said guide frame by the extreme position corresponding with the core head root to moving with the terminal corresponding extreme position of core head; In this process through the first roller roll extrusion tubing with tubing to another direction bending, realize a dog leg process.
Bending machine of the present invention, upper surface is positioned at the core head bilateral symmetry and is provided with the guide frame that is extended by the root terminad of this core head along this core head outline line on the chassis, and the guide frame two limit positions respectively with the root of said core head with terminal corresponding; The bottom of two rollers is slidingly arranged in respectively on the corresponding said guide frame, and driving mechanism drives said two rollers respectively and between the guide frame two limit positions, moves back and forth and be used for roll extrusion bending tubing, and tubing adds man-hour like this; First roller is in the initial threshold position and withstands tubing; Second roller is moved to another limit end by the initial threshold position along corresponding guide frame under the promotion of power source output shaft, and tubing is carried out roll extrusion; Tubing is carried out the bending of a direction; In like manner, when tubing was carried out the rightabout bending, second roller was in the initial threshold position and withstands tubing; First roller is under the promotion of power source output shaft; Move to another extreme position by the initial threshold position along corresponding guide frame, tubing is pushed, solved the problem that pipe bending mechanism of the prior art can only bend tubing facing one direction.
Further; Owing to be equipped with radial section on the two roller outer peripheral faces and be the annular groove that cooperates with the square tube roof pressure of being used for of rectangle; Therefore in the process of extruding bending tubing, particularly square pipe the time, prevent that tubing from expanding to both sides under the effect of extruding force; Owing to use the roll extrusion mode at bending tubing; And under the common roof pressure of external roller and plug, the inboard gauffer deformation space of tubing bending part can prevent the distortion of the inboard tube wall of tubing bending part well in the tube wall of tubing bending part inboard.
Description of drawings
Fig. 1 is the vertical view of embodiment of the invention pipe bending mechanism;
Fig. 2 is the left view of embodiment of the invention pipe bending mechanism;
Fig. 3 is the vertical view of embodiment of the invention bending machine;
Fig. 4 is the structural representation of embodiment of the invention bending machine feed mechanism;
Fig. 5 is the structural representation of embodiment of the invention bending machine plug;
Fig. 6 is the structural representation that embodiment of the invention bending machine nut seat promotes frame;
Fig. 7 is the B place enlarged drawing of Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is elaborated:
A kind of embodiment of bending machine; Shown in Fig. 1 ~ 3; Comprise workbench 1, be located at the feed mechanism on the workbench 1, the pipe bending mechanism that is used to compress the hold-down mechanism of tubing and is used for bending tubing; Feed mechanism comprises that motor 2, shaft coupling 10, the leading screw 21 that links to each other with shaft coupling 10 and the nut seat that is driven by leading screw 21 promote frame 22; Nut seat promotes frame 22 and comprises nut seat 35 and be connected in the nut 36 on the nut seat 35; Leading screw 21 slides and is located in the hole 37 of nut seat; Said pipe bending mechanism comprises the plug 11 that is arranged on the workbench and is vertically set on first roller 19 and second roller 20 on the said workbench; Workbench comprises that table top and chassis 8, two rollers 19,20 and the core head of plug that are fixed on the table top through bolt 17 all are arranged on the chassis 8, is equipped with radial section on the outer peripheral face of two rollers 19,20 and is the annular groove 21 that cooperates with the square tube roof pressure of being used for of rectangle; Chassis 8 upper surfaces are positioned at the symmetrically arranged guide frame in position of core head both sides; Guide frame all along this core head outline line extend by the root terminad of this core head and said guide frame two limit positions respectively with the root of said core head with terminal corresponding, guide frame is a long guiding hole 15,15 ', the bottom of two rollers 19,20 is slidingly arranged in respectively on the said long guiding hole 15,15 ' of correspondence; Also be provided with on this workbench and drive said two rollers respectively and between the guide frame two limit positions, move back and forth and be used for the driving mechanism of roll extrusion bending tubing; This driving mechanism comprises that the both sides of plug 11 are equipped with the power source 5 of output straight reciprocating motion, 5 ' and connecting rod 6,6 ', and present embodiment medium power source is a hydraulic cylinder, and roller 19,20 and connecting rod 6, that 6 ' one end passes through bearing 14,18 is hinged; The output shaft 13,13 ' of connecting rod 6, the 6 ' other end and said power source is hinged through piston pin 16; Power source output shaft 13,13 ' promotes corresponding said roller 19,20 and moves back and forth to another limit end from the said long guiding hole of correspondence 15,15 ' limit end when moving back and forth, in order to stablize the corresponding roller 19,20 of promotion, connecting rod 6,6 ' is the U-shaped connecting rod; The lower end of two rollers 19,20 passes corresponding said pilot hole 15,15 ' respectively; The two ends up and down of said two rollers 19,20 is rotated respectively on two arms that are plugged in corresponding said U-shaped connecting rod oral area and to be realized that hinged with said U-shaped connecting rod, the other end relative with oral area of said U-shaped connecting rod are hinged on the output shaft 13 of corresponding power source, 13 ', can be along pilot hole 15,15 ' the stable slip in order to make roller 19,20; Between the upper end of said two rollers 19,20 and two said U-shaped connecting rods, also be provided with and coil 7; The said dish 7 gone up is fixed on the chassis 8 through bolt or connecting axle, and dish 7 is provided with pilot hole with the corresponding position of pilot hole on the said chassis 8 on said, and the upper end of said two rollers 19,20 is located in the pilot hole and with pilot hole and is slidingly matched; Hold-down mechanism comprises that the hydraulic cylinder 9 that compresses that is positioned at plug 11 1 sides constitutes with three contact rollers that are positioned at plug 11 opposite sides 4, and plug 11 is provided with straight joint, and plug 11 afterbodys pass two corresponding through holes 38,38 ' on the nut seat, and by plug jig 3 chuckings.
In other embodiment of a kind of bending machine; Different with the foregoing description is that described pilot hole can also replace with gathering sill, at this moment; The lower end of corresponding said roller is slidingly arranged in the gathering sill, and the underarm of said U-shaped connecting rod is hinged on corresponding roller and is positioned at the part on the gathering sill; In other embodiment of a kind of pipe bending mechanism, different with the foregoing description is, described pilot hole can also replace with directive slide track, and at this moment, the lower end of corresponding said roller is slidingly arranged on the slide rail; In other embodiment of a kind of pipe bending mechanism, different with the foregoing description is that the power source of driving mechanism can also move in turn through spur gear output straight line for motor, interior combustion gas etc., and moves back and forth on guiding mechanism through push pedal promotion roller.
A kind of bending method that uses bending machine of the present invention comprises following steps:
1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that a roller is fixed on guide frame withstood tubing; And drive another roller on another guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through roller roll extrusion tubing with the tubing bending.
A kind of dog leg method of using bending machine of the present invention comprises following steps:
1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that first roller is fixed on guide frame withstood tubing; And drive second roller on another said guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through the second roller roll extrusion tubing with the tubing bending;
4) second roller is got back to the extreme position corresponding with the core head root under drive mechanism;
5) hold-down mechanism unclamps tubing then, then continues tubing is pushed into the precalculated position and through this hold-down mechanism tubing is fixed to said core head direction with feed mechanism;
6) then utilize driving mechanism that the extreme position corresponding with the core head root that second roller is fixed on guide frame withstood tubing; And drive first roller on another said guide frame by the extreme position corresponding with the core head root to moving with the terminal corresponding extreme position of core head; In this process through the first roller roll extrusion tubing with tubing to another direction bending, realize a dog leg process.
The process that feed mechanism promotes tubing is following, and motor passes through screw mandrel drive nut seat and promotes frame, and nut seat promotes frame promotion tubing and slides to the direction of pipe bending mechanism, stops to drive behind the arrival precalculated position; Hold-down mechanism compresses tubing through realizing under the compression fit that compresses hydraulic cylinder and contact roller, and the present invention uses bending machine can tubing be bent into shapes such as Z-shaped, W shape.
Claims (8)
1. bending machine; Comprise workbench, be located at the feed mechanism on the workbench, the pipe bending mechanism that is used to compress the hold-down mechanism of tubing and is used for bending tubing; It is characterized in that: said pipe bending mechanism comprises and is fixedly arranged on the plug on the workbench and is vertically set on first roller and second roller on the said workbench; The bilateral symmetry that on said workbench, is positioned at this core head is provided with guide frame; Said guide frame all along this core head outline line extend by the root terminad of this core head and said guide frame two limit positions respectively with the root of said core head with terminal corresponding; The bottom of said two rollers is slidingly arranged in respectively on the corresponding said guide frame, also is provided with on this workbench to drive said two rollers respectively and between the guide frame two limit positions, move back and forth and be used for the driving mechanism of roll extrusion bending tubing.
2. a kind of bending machine according to claim 1 is characterized in that: described guide frame is gathering sill or long guiding hole or directive slide track.
3. a kind of bending machine according to claim 2; It is characterized in that: described driving mechanism comprise two both sides that are separately positioned on said plug the output straight reciprocating motion power source and be hinged on the connecting rod on each said power source output shaft, the other end of said connecting rod is hinged on the corresponding said roller.
4. a kind of bending machine according to claim 3; It is characterized in that: said connecting rod is the U-shaped connecting rod; The two ends up and down of said two rollers is rotated respectively on two arms that are plugged in corresponding said U-shaped connecting rod oral area and to be realized hinged with said U-shaped, and the other end relative with oral area of said U-shaped connecting rod is hinged on the output shaft of corresponding power source.
5. a kind of bending machine according to claim 4 is characterized in that: be provided with bearing between said U-shaped connecting rod and the corresponding said roller.
6. according to any described a kind of bending machine of claim 1-5, it is characterized in that: the annular groove that cooperates with the square tube roof pressure of being used for that is equipped with radial section on the outer peripheral face of said two rollers and is rectangle.
7. a bending method that uses the said bending machine of claim 1 is characterized in that comprising following steps: 1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that a roller is fixed on guide frame withstood tubing; And drive another roller on another guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through roller roll extrusion tubing with the tubing bending.
8. a dog leg method of using the said bending machine of claim 1 is characterized in that comprising following steps: 1) earlier tubing is sleeved on the plug;
2) with feed mechanism tubing is pushed into the precalculated position to the core head direction then, with hold-down mechanism tubing is fixed again;
3) then utilize driving mechanism that the extreme position corresponding with the core head root that first roller is fixed on guide frame withstood tubing; And drive second roller on another said guide frame by the extreme position corresponding with the core head root to the terminal corresponding extreme position motion of core head, in this process, pass through the second roller roll extrusion tubing with the tubing bending;
4) second roller is got back to the extreme position corresponding with the core head root under drive mechanism;
5) hold-down mechanism unclamps tubing then, then continues tubing is pushed into the precalculated position and through this hold-down mechanism tubing is fixed to said core head direction with feed mechanism;
6) then utilize driving mechanism that the extreme position corresponding with the core head root that second roller is fixed on guide frame withstood tubing; And drive first roller on another said guide frame by the extreme position corresponding with the core head root to moving with the terminal corresponding extreme position of core head; In this process through the first roller roll extrusion tubing with tubing to another direction bending, realize a dog leg process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438634.1A CN102688920B (en) | 2011-12-25 | 2011-12-25 | Pipe bender and bending method using pipe bender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110438634.1A CN102688920B (en) | 2011-12-25 | 2011-12-25 | Pipe bender and bending method using pipe bender |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102688920A true CN102688920A (en) | 2012-09-26 |
| CN102688920B CN102688920B (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110438634.1A Expired - Fee Related CN102688920B (en) | 2011-12-25 | 2011-12-25 | Pipe bender and bending method using pipe bender |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111501A (en) * | 2013-02-26 | 2013-05-22 | 中山市奥翔机械有限公司 | Pipe bending mechanism, pipe bender and pipe bending method |
| CN103878220A (en) * | 2014-04-03 | 2014-06-25 | 杨仲辉 | U-shaped heating furnace tube bend for conducting heating fluid heating and pressure maintaining forming |
| CN103920777A (en) * | 2014-04-14 | 2014-07-16 | 宣利娜 | Bending technology for furnace tube of linear heating furnace |
| CN103920772A (en) * | 2014-04-14 | 2014-07-16 | 陈涛 | Bending technology for furnace tube of linear heating furnace |
| CN103934336A (en) * | 2014-04-14 | 2014-07-23 | 杨晓锋 | Linear type heating furnace tube bending technology |
| CN103934332A (en) * | 2014-04-14 | 2014-07-23 | 金键栋 | Linear type heating furnace tube bending technology |
| CN103934328A (en) * | 2014-04-14 | 2014-07-23 | 苏培钦 | Linear type heating furnace tube bending technology |
| CN104759501A (en) * | 2014-01-03 | 2015-07-08 | 北京真金昌汽车科技有限公司 | Core rod for bending square pipe |
| CN107214221A (en) * | 2017-07-04 | 2017-09-29 | 中石化石油工程技术服务有限公司 | A kind of interior bending machine and bending method |
| CN108002692A (en) * | 2017-12-13 | 2018-05-08 | 中国科学技术大学 | A kind of bending press based on arm structure |
| CN114682663A (en) * | 2022-04-06 | 2022-07-01 | 江苏耀坤液压股份有限公司 | Bending assembly for bending part cavity curvature of hydraulic oil pipe close to theoretical circle |
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| CN202377335U (en) * | 2011-12-25 | 2012-08-15 | 河南科技大学 | Tube bending machine |
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| SU1411071A1 (en) * | 1986-01-07 | 1988-07-23 | Центральное Конструкторско-Технологическое Бюро Велостроения | Arrangement for spatial bending of tubular billets |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103111501B (en) * | 2013-02-26 | 2015-11-18 | 中山市奥翔机械有限公司 | A kind of pipe bending mechanism, a kind of bending machine and bending method |
| CN103111501A (en) * | 2013-02-26 | 2013-05-22 | 中山市奥翔机械有限公司 | Pipe bending mechanism, pipe bender and pipe bending method |
| CN104759501A (en) * | 2014-01-03 | 2015-07-08 | 北京真金昌汽车科技有限公司 | Core rod for bending square pipe |
| CN103878220B (en) * | 2014-04-03 | 2015-06-03 | 江苏金晟元特种阀门股份有限公司 | U-shaped heating furnace tube bend process for conducting heating fluid heating and pressure maintaining forming |
| CN103878220A (en) * | 2014-04-03 | 2014-06-25 | 杨仲辉 | U-shaped heating furnace tube bend for conducting heating fluid heating and pressure maintaining forming |
| CN103920772A (en) * | 2014-04-14 | 2014-07-16 | 陈涛 | Bending technology for furnace tube of linear heating furnace |
| CN103934328A (en) * | 2014-04-14 | 2014-07-23 | 苏培钦 | Linear type heating furnace tube bending technology |
| CN103934332A (en) * | 2014-04-14 | 2014-07-23 | 金键栋 | Linear type heating furnace tube bending technology |
| CN103934336A (en) * | 2014-04-14 | 2014-07-23 | 杨晓锋 | Linear type heating furnace tube bending technology |
| CN103920777A (en) * | 2014-04-14 | 2014-07-16 | 宣利娜 | Bending technology for furnace tube of linear heating furnace |
| CN107214221A (en) * | 2017-07-04 | 2017-09-29 | 中石化石油工程技术服务有限公司 | A kind of interior bending machine and bending method |
| CN108002692A (en) * | 2017-12-13 | 2018-05-08 | 中国科学技术大学 | A kind of bending press based on arm structure |
| CN108002692B (en) * | 2017-12-13 | 2020-01-03 | 中国科学技术大学 | Bending device based on double-arm structure |
| CN114682663A (en) * | 2022-04-06 | 2022-07-01 | 江苏耀坤液压股份有限公司 | Bending assembly for bending part cavity curvature of hydraulic oil pipe close to theoretical circle |
| CN114682663B (en) * | 2022-04-06 | 2023-08-25 | 江苏耀坤液压股份有限公司 | Bending assembly with curvature of bending part cavity of hydraulic oil pipe close to theoretical circle |
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|---|---|
| CN102688920B (en) | 2014-08-06 |
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