CN105414276B - The processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe - Google Patents
The processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe Download PDFInfo
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- CN105414276B CN105414276B CN201510843059.1A CN201510843059A CN105414276B CN 105414276 B CN105414276 B CN 105414276B CN 201510843059 A CN201510843059 A CN 201510843059A CN 105414276 B CN105414276 B CN 105414276B
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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
- B21D9/00—Bending tubes using mandrels or the like
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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
- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention is high accuracy, high intensity, the processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe.Belong to metal tube bending techniques field.It mainly solves the problems, such as the heavy caliber book wall pneumatic transmission aluminium bend pipe that existing equipment and method can not all produce the anti-surrender ability of high-precision size, high intensity.It is mainly characterized by：(1) the f state blank pipes without any processing are selected；(2) used the whole footpath technique of ball to carry out shaping to the ellipse of blank pipe and surface；(3), by the blank pipe after shaping, bending is entered with improved hydraulic pipe bender；(4) to lower machine after the curved light-wall pipe progress pressurize processing of machine-shaping；(5) timeliness increase intensity is carried out to the bend pipe of lower machine；(6) factory testing is carried out by detection device, ensure that angle, ovality, torsion resistance, hardness, streamline etc. reach design requirement.Present invention is mainly used for the processing of high accuracy, high intensity, heavy caliber book wall pneumatic transmission aluminium bend pipe.
Description
Technical field
The invention belongs to metal tube bending techniques field, and in particular to a kind of for the high-precision, high of air-transport system
The processing method of intensity, heavy caliber book wall pneumatic transmission aluminium bend pipe.
Background technology
China's aluminium forming elbow method at this stage：First base material will typically be made annealing treatment to eliminate stress, aluminum pipe
Bending Processing is carried out under soft state.The bend pipe processed with this technique, because material is soft, the problem of bringing is exactly anti-surrender
Intensity is extremely low.And it is used for pneumatic transmission pipeline, typically use heavy caliber book wall（The ㎜ of Φ 150, the ㎜ of wall thickness 2）Bend pipe, just more can be
The links such as transport, handling, assembled in situ, because collided with by external force and caused by port deformation or tube wall uneven.If port
Position or the position ellipse that collided with change, the fluency of transporting articles in the straight shadow pipe of meeting；If angle of bend changes,
The overall look and feel effect after conveyance conduit arrangement can more be influenceed.
In summary as can be seen that heavy caliber book wall aluminium bend pipe for pneumatic transmission system, only bend pipe angle and ellipse
Dimensional tolerance precision is high, and tube wall does not have gauffer and bump injury, just can guarantee that pipeline streamline is smooth and interface position it is closed between
Gap；Also require that pipeline possesses certain anti-yield strength simultaneously, it is ensured that in dress, with each link, will not because collide with extruding and caused by
There is tube wall hollow in change in size.For the ㎜ of Φ 150 as pneumatic transmission system, the ㎜ of wall thickness 2, R1200mm, 90 degree of angle of bend
Large-caliber thin-walled aluminium bend pipe, according to traditional processing method, it is difficult to ensure that the high accuracy of size and the high intensity of anti-surrender.
The content of the invention
The purpose of the present invention is improved, innovated, to traditional pure aiming at shortcoming present in background technology and problem
Pull-type bending machine carries out appropriate reconstruction, and emphasis is innovated in forming method and process aspect, it is ensured that the ㎜ of Φ 150, the ㎜ of wall thickness 2 are cold
Ellipse, distortion, angle, the tube wall streamline of curved large-caliber thin-walled aluminium bend pipe meet design requirement, there is provided a kind of high-precision, high-strength
Degree, the processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe.
The present invention technical solution be：A kind of processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe, for processing Φ
150 ㎜, the ㎜ of wall thickness 2, long 3000 ㎜ pneumatic transmission aluminium bend pipe processing, it is characterised in that comprise the following steps that：
(1) selection, from the 6063f natural mode blank aluminum pipes without artificial aging and annealing；
(2) whole footpath, used the whole footpath technique of ball to carry out integer to the ellipse of blank aluminum pipe and surface, cross ball speed be 3 meters/
The 15-30 seconds；
(3) bending machine is shaped, and the blank aluminum pipe after integer is served into bending machine；Mandrel, rear end insertion mandrel sheet are inserted in front end
Body and core ball, start forward and backward clamping device and clamp the both ends of blank aluminum pipe；Front end, rear end clamping pressure be 3.5~
4.7MPa；Start machine after corresponding bend pipe angle and bending duration are set on bending machine control flow, blank aluminum pipe is with bend pipe
Machine circle mould rotates winding shaping；
(4) descend pressurize before machine, under the bend pipe of shaping before machine, first carry out 0~4 according to blank pipe hardness and angle of bend situation
Minute pressurize, after according to first loose rear fixture extract mandrel body and core ball out, rear loose front clamp device extracts the step of mandrel out
Suddenly bend pipe is removed；
(5) dimension correction, the bend pipe after handling pressurize used the whole footpath technique of ball to carry out dimension correction, adjustment make angle,
Oval, torsion resistance all meets design requirement；Ball speed is crossed as 3 meters/10~40 seconds, realizes the high accuracy of bend pipe；
(6) timeliness increase tube wall hardness, timeliness is carried out to the bend pipe after dimension correction, for increasing body hardness, improved anti-
Yield strength, bend pipe is set to meet T5 states as defined in GB/5237-2008, tensile strength >=160Mpa, yield strength >=
110Mpa, webster hardness >=9HW, realize the high intensity of bend pipe.
Processing step described in the technical solution of the present invention（1）In 6063 natural mode blank aluminum pipes for 6063f from
Right state blank aluminum pipe, size is Φ 150（+0.3-0.4）㎜, wall thickness 2（+ -0.16）㎜, long 3000（+ -5）㎜；It is husky with foam
The aluminium skimmings and particle of tube wall residual are removed in polishing；Impurity in pipe is removed, then the lubricating oil spraying in pipe.
Processing step described in the technical solution of the present invention (2) and (5) in, cross ball sphere diameter and be more than blank aluminum pipe internal diameter
0.1~0.3 ㎜, ball number 1-3 times is crossed, oval allowance control is within+0.3-0.4mm.
Processing step described in the technical solution of the present invention (3) in angle of bend be 88-93 degree, bending speed is 3
Rice/20-35 the seconds.
(6) the aging temp selected by middle timeliness is 200-230 to processing step described in the technical solution of the present invention
Degree, soaking time is 120-240 minutes, for the purpose of reaching dimensionally stable and the raising of anti-yield strength.
Using existing wound form hydraulic pipe bender as angle pipe equipment, self-control is corresponding to cross ball integer type device and detects flat the present invention
Platform.The nature blank pipe without artificial aging and annealing is selected, passes through conscientious size detection and table before upper bending machine
Face is handled, it is ensured that blank pipe size enters difference, and tube wall keeps the cold stewing of machine on original stress without hollow and the scuffing of colliding with.Pass through afterwards
Pressurize, the multiple process such as timeliness again after crossing ball and shaping, not only stable for the precision of bent pipe ruler cun, and improve anti-surrender
Intensity.Aluminum Pneumatic conveying pipeline is set to be become apparent from other metal material pipeline comparative advantages.Cost-effective cost of investment is low, single
Body weight gently facilitates assembled in situ and carrying, anti-yield strength height avoid the bump injury of shipment, the precision of size is protected
Pneumatic transmission object smoothness effect is demonstrate,proved.
The present invention has following beneficial effect：
（1）Processing charges is low.A 90 degree of R1200 of ㎜ of Φ 150 × 2 bend pipe is processed, it is necessary to artificial 3 with the inventive method
It is individual, 5 minutes are taken, using power 11kw, the bend pipe of same specification is processed with conventional method needs artificial 6, and the time 300 divides
Clock, use the kw of power 270.
(2) body is not damaged.It will not be damaged using cold roasting method caused by high temperature is to body, after outer list processing, no
See aberration, sensorial effects are good；And traditional diamond-making technique can make bend pipe surface produce oxidation through high-temperature heating, body is caused to damage
Wound.And also big, clod wash lateral wall thinned only 5% is thinned than clod wash lateral wall for hot bending.
（3）Dimensional accuracy is high.Bend pipe ovality rate and angular deviation are up to 98%；It is truly realized that size is accurate, with sleeve pipe
Fit clearance is only 0.15mm, and barrier will not be produced substantially in article transmitting procedure.And it can not be ensured at all with conventional method
The precision of shape size and angle.
（4）Anti- surrender is high-strength.Overcome the defects of soft fearness of aluminum pneumatic transmission bend pipe material is collided with.The bend pipe of conventional method processing
Bending after first being annealed to blank pipe.Because body is soft, the risk for the deformation that causes to collide with transport and assembling process is high,
But using after being shaped the method for rear timeliness, increase body hardness, improve the anti-yield strength of pipeline, while improve chi
Very little stability.
(5) comprehensive benefit is good.Aluminium alloy is more cost-effective than other metal materials, bending and forming efficiency high, the sense after installation
Seeing effect might as well, it may be said that is the good material of super quality and competitive price, so as to relative reduction project cost, being readily obtained popularization should
With.
Present invention high accuracy, high intensity, the processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe, can be by the ㎜ of Φ 150, wall thickness 2
㎜, long 3000 ㎜ large-caliber thin-walled aluminum pipe bend shaping, and inflection point and the curved point of receipts is all occurred without crackle or corrugation, curved
The ellipse of pipe, angle, torsion resistance, anti-yield strength all meet design requirement.Instant invention overcomes existing equipment and technology not
Foot part, the pure pull-type bending machine of tradition is transformed, emphasis is innovated in technique.Ensure clod wash high accuracy, high intensity,
Large-caliber thin-walled bend pipe can reach or meet the margins of tolerance such as the ellipse of layout design, distortion, angle.Present invention is mainly used for gas
The processing of the high accuracy, high intensity, heavy caliber book wall pneumatic transmission aluminium bend pipe of power induction system.
Embodiment
High accuracy of the invention, high intensity, the processing method of large-caliber thin-walled pneumatic transmission aluminium bend pipe are described in further detail below.
The processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe of the present invention comprises the following steps that：
(1) blank is selected, and is selected without the ㎜ of 6063f states Φ 150 of artificial aging and annealing, the ㎜ of wall thickness 2, length
3000 ㎜ aluminium-alloy pipes carry out size detection as turned blank aluminum pipe to be bent, meet Φ 150 (+0.3-0.4) mm*2 (+
- 0.16) mm*3000 (+- 5) mm size requirement；
(2) upper machine prepares, and removes aluminium skimmings and the particle that tube wall remains with the husky polishing of foam；Impurity in pipe is removed, then
Moderate lubrication oil is sprayed into pipe, complies with the requirement of machine bending；
(3) use the whole footpath technique of ball to carry out integer processing to blank aluminum pipe, and according to blank aluminum pipe hardness situation, cross ball speed
Degree selection is the 3 meters/15-30 seconds, and sphere diameter selection is more than blank aluminum pipe internal diameter 0.1-0.3mm, crosses ball number 1-3 times, it is therefore an objective to
Ensure oval allowance control within+0.3-0.4mm；
(4) bending and forming, from wound form hydraulic pipe bender as angle pipe equipment, the blank pipe after shaping is carried on into bend pipe
Machine is to be curved；Mandrel and core ball first are inserted in rear end, mandrel is inserted in front end, successively pressurization clamps blank aluminium to both ends clamping device
Pipe, pressure are respectively between 3.5~4.7MPa；The operation duration of angle of bend and bending is set on bending machine control flow again,
According to blank pipe hardness situation, angle is arranged between 88-93 degree, bending when a length of 3 meters/15-25 seconds；Finally start bending machine
Bending is carried out, elbow material is Wrapping formed with the circle mould rotation on bending machine；
(5) pressurize is handled, and first carries out pressurize before machine under the bend pipe of machine-shaping, and the dwell time is 0-4 minutes, then according to
The step of it is appropriate first to be clamped after pine, extracts mandrel body and core ball out, and rear loose front clamp extracts front mandrel out removes bend pipe, reaches to curved
The purpose that the bounce-back change of tube angulation is finely adjusted；
(6) correct again, after being detected to the bend pipe after lower machine, according to circumstances used the whole footpath technique of ball again to chi
Little progress row correction process, it is between 3 meters/10~40 seconds to cross ball speed control, and sphere diameter selection is more than blank aluminum pipe internal diameter 0.1-
0.3mm, ball number 1-3 times is crossed, for adjustment angle and ovality, until reaching design requirement；
(6) timeliness hardening and shape, bend pipe is put into aging furnace, be heated up to 200-230 degree, go out after being incubated 180-240 minutes
Stove air cooling, bend pipe is set to meet T5 states as defined in GB2/5237-2008, tensile strength >=160MPa, yield strength >=110MPa, Wei
Family name's hardness >=9HW, improves anti-yield strength.
(7) initial workpiece detects, A：Three coordinate angles detect；B：Mechanical performance and yield strength experiment；C：Detection platform synthesis system
Number detection；D：Drift is tested；
(8) produce in batches, produced in batches on the basis of initial workpiece is completely qualified；Accomplish that each batch will first be done
Exemplar, equipment is adjusted after the inspection of three coordinates, then formal production, it is desirable to which angle of bend is within+- 0.5 degree；It is logical
Cross detection platform to detect the glacing flatness of bend pipe, it is desirable to ellipse in 2/1000 ㎜, within the torsion resistance list survey ㎜ of gap 5
Circle rate measures A-B at 0,15,45,75,90 degree five and is less than or equal within 1.2 ㎜.Anti- yield strength be more than tensile strength >=
160Mpa, yield strength >=110Mpa, webster hardness >=9HW.
Claims (4)
- A kind of 1. processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe, for processing the ㎜ of Φ 150, the ㎜ of wall thickness 2, long 3000 ㎜ gas Aluminium bend pipe is sent to process, it is characterised in that to comprise the following steps that：(1) selection, from the 6063 natural mode blank aluminum pipes without artificial aging and annealing；(2) whole footpath, used the whole footpath technique of ball to carry out integer to the ellipse of blank aluminum pipe and surface, and crossed ball sphere diameter and be more than blank aluminium The ㎜ of bore 0.1~0.3, it be the 3 meters/15-30 seconds to cross ball speed, mistake ball number 1-3 times, oval allowance control+0.3~- Within 0.4mm；(3) cold bending, the blank aluminum pipe after integer is served into bending machine；Mandrel, rear end insertion mandrel body and core are inserted in front end Ball, start forward and backward clamping device and clamp the both ends of blank aluminum pipe；Front end, rear end clamping pressure are 3.5~4.7MPa；Curved Start machine after corresponding bend pipe angle and bending duration are set on pipe machine control flow, blank aluminum pipe is rotated with bending machine circle mould and twined Around shaping；(4) descend pressurize before machine, under the bend pipe of shaping before machine, first carried out 0~4 minute according to blank pipe hardness and angle of bend situation Pressurize, then according to first loose rear fixture, extract mandrel body and core ball, rear loose front clamp device out, extract the step of mandrel out Suddenly bend pipe is removed；(5) dimension correction, the bend pipe after handling pressurize, used the whole footpath technique of ball to carry out dimension correction, it is ensured that angle, ellipse Degree, torsion resistance, meet design requirement；Cross ball sphere diameter and be more than the ㎜ of blank aluminum pipe internal diameter 0.1~0.3, cross ball speed be 3 meters/10~ 40 seconds, ball number 1-3 times is crossed, oval allowance control is within+0.3~-0.4mm；(6) timeliness increase tube wall hardness, Ageing Treatment is carried out to the bend pipe of dimension correction, for increasing body hardness, improve anti-bend Intensity is taken, bend pipe is met T5 states as defined in GB/5237-2008, tensile strength >=160Mpa, yield strength >=110Mpa, Webster hardness >=9HW.
- A kind of 2. processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe according to claim 1, it is characterised in that：The work Skill step（1）In aluminum pipe be 6063f natural mode blank aluminum pipes, the ㎜ of caliber Φ 150, roundness tolerance：+ 0.3~-0.4 ㎜, wall thickness 2 ㎜, wall thickness tolerance：± 0.16 ㎜, the ㎜ of pipe range 3000, length tolerance：±5㎜；Remove tube wall with the husky polishing of foam to remain Aluminium skimmings and particle；Impurity in pipe is removed, then the lubricating oil spraying in pipe.
- A kind of 3. processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe according to claim 1 or 2, it is characterised in that：Institute Angle of bend in stating processing step (3) is 88-93 degree, and bending speed is the 3 meters/15-25 seconds.
- A kind of 4. processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe according to claim 1 or 2, it is characterised in that：Institute Stating processing step, (6) the aging temp selected by middle timeliness is 200-230 degree, and soaking time is 120-240 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510843059.1A CN105414276B (en) | 2015-11-27 | 2015-11-27 | The processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe |
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|---|---|---|---|
| CN201510843059.1A CN105414276B (en) | 2015-11-27 | 2015-11-27 | The processing method of heavy caliber book wall pneumatic transmission aluminium bend pipe |
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| CN105414276A CN105414276A (en) | 2016-03-23 |
| CN105414276B true CN105414276B (en) | 2017-12-05 |
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| CN111014385A (en) * | 2018-10-10 | 2020-04-17 | 江苏升创管业有限公司 | Manufacturing process of U-shaped aluminum pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4269054A (en) * | 1978-03-17 | 1981-05-26 | Eaton-Leonard Corporation | Bending method |
| JPS5639123A (en) * | 1979-09-05 | 1981-04-14 | Hitachi Ltd | Bending method for pipe utilizing ultrasonic wave |
| DE8219048U1 (en) * | 1982-07-03 | 1982-11-18 | Ludwig Lang Kg Maschinenbau, 6120 Michelstadt | DEVICE FOR BENDING THIN-WALLED PIPES, IN PARTICULAR MANO METER SPRINGS |
| JP4288321B2 (en) * | 2002-10-22 | 2009-07-01 | コムコ株式会社 | Pipe bender and pipe bending method |
| CN102744304B (en) * | 2012-07-26 | 2013-10-02 | 襄阳市广谦达进出口有限公司 | Processing method of cavity cold-bending large-caliber thin-wall aluminum bent pipe |
| CN103934641B (en) * | 2014-04-28 | 2016-04-27 | 明达铝业科技(太仓)有限公司 | The processing method of the one-body molded pipe of the upper fork of pipe under a kind of bicycle |
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Effective date of registration: 20200115 Address after: 441000 south area of Shenzhen Industrial Park, Xiangzhou District, Xiangyang City, Hubei Province (workshop 2 in the plant area of Wanrun Intelligent Equipment Co., Ltd.) Patentee after: Xiangyang Guangyi Industrial Management Co., Ltd Address before: 441003, No. 37, Renmin West Road, Hubei, Xiangfan Province, 1 Patentee before: XIANGYANG ZHENGYUAN BEND PIPE TECHNOLOGY CO., LTD. |
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