CN107824646A - A kind of anti-fold bending technique of materials in the tube - Google Patents

A kind of anti-fold bending technique of materials in the tube Download PDF

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Publication number
CN107824646A
CN107824646A CN201710601252.3A CN201710601252A CN107824646A CN 107824646 A CN107824646 A CN 107824646A CN 201710601252 A CN201710601252 A CN 201710601252A CN 107824646 A CN107824646 A CN 107824646A
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CN
China
Prior art keywords
bending
tube
materials
fold
mould
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
CN201710601252.3A
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Chinese (zh)
Inventor
何华文
钱永海
陈际春
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.)
Nantong Zhenhua Heavy Equipment Manufacturing Co Ltd
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Nantong Zhenhua Heavy Equipment Manufacturing 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 Nantong Zhenhua Heavy Equipment Manufacturing Co Ltd filed Critical Nantong Zhenhua Heavy Equipment Manufacturing Co Ltd
Priority to CN201710601252.3A priority Critical patent/CN107824646A/en
Publication of CN107824646A publication Critical patent/CN107824646A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B21D7/167—Greasing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

The invention discloses a kind of anti-fold bending technique of materials in the tube, by the adjustment of the buying of raw material, the installation of Bending Mould, bending angle and size, preheating, lubricated, bending processing and material step, the anti-fold bending technique of materials in the tube is completed；The advantage of the invention is that：This materials in the tube bending technique method is simply easily realized, can solve materials in the tube in gauffer defect caused by bending, eliminates quality problems, effectively save material and does over again；It is equally applicable to other materials in the tube, there is certain universality.

Description

A kind of anti-fold bending technique of materials in the tube
Technical field
The present invention relates to a kind of bending handling process of materials in the tube, and in particular to a kind of anti-fold bending technique of materials in the tube.
Background technology
Base international pro-ject is in ladder landing platform preparation process, and American Standard Φ 42.3mm × 2.75mm materials in the tube are in bending, folding Occurs continuous fold on the inside of curved area, such case can not meet the requirement of user；
There is buckling phenomena in bending process in the materials in the tube that site operation personnel feed back Φ 42.3mm × 2.75mm, and workmen will The materials in the tube for being replaced by Φ 42.3mm × 3.25mm are sought, this bending tube is reused and replaces original materials in the tube bending corrugated regions, still, Unnecessary welding polishing, wasting manpower and material resources and reduction production efficiency can so be increased, the objective of cost is reduced with company Disagree.
Materials in the tube are spread, if bending deformation quantity causes greatly on the outside of flex area in bending by pulling force metal material to surrounding More than the limit of metal material diffusion, outside can be thus caused to be ftractureed；Inner side is stressed metal material to inner side accumulation, if Bending deformation quantity causes greatly inner metal material stacking excessively so as to cause wrinkling.
By above-mentioned analysis, for the situation that wrinkles：Consider solve this problem in terms of these：1. select the good original of plasticity Material, general cold rolled tube plasticity are better than hot-rolled pipe；2. reducing bending deflection, the bending proposed requirement, drop are designed by changing The deflection of low bending；3. the internal addition filler of management, deformed by adding filler inside stuffing counteracting part, So as to reduce the probability for various defects occur；4. the resistance in bending process is reduced, by way of adding lubrication on mould, Make the more preferably smooth of materials in the tube metal flow in bending deformation process, avoid not causing material stacking freely and fold occur.5. improve Mould, by changing mould clamping mould and being exerted a force to materials in the tube more preferably rationally and uniform.
By analyzing obtained measure above, the actual conditions analysis in conjunction with company is drawn：Measure 1 can perform, and Procurement staff is notified to carry out indicating this explanation in procurement contract, in order to which wrinkling is improved during this materials in the tube bending of later stage Or disappear；Measure 2 needs to change design, unactual to cancel；Measure 3 and measure 5 add unnecessary manpower and materials, temporarily at present Do not consider；Measure 4 can by mould coating butter lubrication realize.
The content of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to now providing one kind can effectively eliminate in bending process The anti-fold bending technique of the materials in the tube of caused fold.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of anti-fold bending technique of materials in the tube, its Innovative point is：At the adjustment of the buying of raw material, the installation of Bending Mould, bending angle and size, preheating, lubrication Reason, bending processing and material step, complete the anti-fold bending technique of materials in the tube；It is described to comprise the following steps that：
（1）The buying of raw material：It is stand-by from the materials in the tube that specification is Φ 42.3mm × 2.75mm；
（2）The installation of Bending Mould：Bending Mould is arranged on hydraulic pipe bender, opens the power supply of hydraulic pipe bender, then Start hydraulic pressure；
（3）The adjustment of bending angle and size：Elbow radius is set as 100mm, position line, setting folding are marked on Bending Mould Bending angle is 135 °, according to bending angle, increases limited block；
（4）Lubricated：Bending Mould is cleaned, then butter is applied on Bending Mould；
（5）Preheating：Materials in the tube flex area is uniformly heated using flame gun, the heat time is 1-1.5min, institute Heating-up temperature is stated as 400-500 DEG C；
（6）Bending is handled：Materials in the tube after heating are placed in Bending Mould to good position line at once, are clamped, Ran Houqi Hydrodynamic pressure bending machine carries out bending；
（7）Feeding：The good materials in the tube of bending are taken out from hydraulic pipe bender, whether the good materials in the tube of visual inspection bending have obvious pleat Wrinkle, if without obvious fold, it is as qualified, that is, complete the anti-fold bending technique of materials in the tube.
Further, the step（4）In butter applying amount for covering 2 millimeters of die surface.
Beneficial effects of the present invention are as follows：The present invention can solve such materials in the tube in bending process, caused bending pleat Wrinkle, quality problems are effectively eliminated, reduction materials in the tube waste is cost-effective, in addition, being equally applicable to other kinds of materials in the tube.
Embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book understands other advantages and effect of the present invention easily.
Embodiment 1
The anti-fold bending technique of a kind of materials in the tube, by the buying of raw material, the installation of Bending Mould, bending angle and size Adjustment, preheating, lubricated, bending processing and material step, complete the anti-fold bending technique of materials in the tube；Specific steps are such as Under：
（1）The buying of raw material：It is stand-by from the materials in the tube that specification is Φ 42.3mm × 2.75mm；
（2）The installation of Bending Mould：Bending Mould is arranged on hydraulic pipe bender, opens the power supply of hydraulic pipe bender, then Start hydraulic pressure；
（3）The adjustment of bending angle and size：Elbow radius is set as 100mm, position line, setting folding are marked on Bending Mould Bending angle is 135 °, according to bending angle, increases limited block；
（4）Lubricated：Bending Mould is cleaned, then butter is applied on Bending Mould；
（5）Preheating：Materials in the tube flex area is uniformly heated using flame gun, heat time 1min, heating-up temperature is 400℃；
（6）Bending is handled：Materials in the tube after heating are placed in Bending Mould to good position line at once, are clamped, Ran Houqi Hydrodynamic pressure bending machine carries out bending；
（7）Feeding：The good materials in the tube of bending are taken out from hydraulic pipe bender, whether the good materials in the tube of visual inspection bending have obvious pleat Wrinkle, if without obvious fold, it is as qualified, that is, complete the anti-fold bending technique of materials in the tube.
Feasible, step（4）In butter applying amount for covering 2 millimeters of die surface.
Embodiment 2
The anti-fold bending technique of a kind of materials in the tube, by the buying of raw material, the installation of Bending Mould, bending angle and size Adjustment, preheating, lubricated, bending processing and material step, complete the anti-fold bending technique of materials in the tube；Specific steps are such as Under：
（1）The buying of raw material：It is stand-by from the materials in the tube that specification is Φ 42.3mm × 2.75mm；
（2）The installation of Bending Mould：Bending Mould is arranged on hydraulic pipe bender, opens the power supply of hydraulic pipe bender, then Start hydraulic pressure；
（3）The adjustment of bending angle and size：Elbow radius is set as 100mm, position line, setting folding are marked on Bending Mould Bending angle is 135 °, according to bending angle, increases limited block；
（4）Lubricated：Bending Mould is cleaned, then butter is applied on Bending Mould；
（5）Preheating：Materials in the tube flex area is uniformly heated using flame gun, heat time 1.5min, heating-up temperature For 500 DEG C；
（6）Bending is handled：Materials in the tube after heating are placed in Bending Mould to good position line at once, are clamped, Ran Houqi Hydrodynamic pressure bending machine carries out bending；
（7）Feeding：The good materials in the tube of bending are taken out from hydraulic pipe bender, whether the good materials in the tube of visual inspection bending have obvious pleat Wrinkle, if without obvious fold, it is as qualified, that is, complete the anti-fold bending technique of materials in the tube.
Feasible, step（4）In butter applying amount for covering 2 millimeters of die surface.
Embodiment 3
The anti-fold bending technique of a kind of materials in the tube, by the buying of raw material, the installation of Bending Mould, bending angle and size Adjustment, preheating, lubricated, bending processing and material step, complete the anti-fold bending technique of materials in the tube；Specific steps are such as Under：
（1）The buying of raw material：It is stand-by from the materials in the tube that specification is Φ 42.3mm × 2.75mm；
（2）The installation of Bending Mould：Bending Mould is arranged on hydraulic pipe bender, opens the power supply of hydraulic pipe bender, then Start hydraulic pressure；
（3）The adjustment of bending angle and size：Elbow radius is set as 100mm, position line, setting folding are marked on Bending Mould Bending angle is 135 °, according to bending angle, increases limited block；
（4）Lubricated：Bending Mould is cleaned, then butter is applied on Bending Mould；
（5）Preheating：Materials in the tube flex area is uniformly heated using flame gun, heat time 1.2min, heating-up temperature For 450 DEG C；
（6）Bending is handled：Materials in the tube after heating are placed in Bending Mould to good position line at once, are clamped, Ran Houqi Hydrodynamic pressure bending machine carries out bending；
（7）Feeding：The good materials in the tube of bending are taken out from hydraulic pipe bender, whether the good materials in the tube of visual inspection bending have obvious pleat Wrinkle, if without obvious fold, it is as qualified, that is, complete the anti-fold bending technique of materials in the tube.
Feasible, step（4）In butter applying amount for covering 2 millimeters of die surface.
The present invention can solve such materials in the tube in bending process, caused bending fold, effectively eliminate quality problems, subtract The waste of education and correction for juvenile offenders material is cost-effective, in addition, being equally applicable to other kinds of materials in the tube.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as The technical scheme that can be realized on the basis of above-described embodiment without creative work, it is regarded as falling into patent of the present invention Rights protection scope in.

Claims (2)

  1. A kind of 1. anti-fold bending technique of materials in the tube, it is characterised in that：By the buying of raw material, the installation of Bending Mould, folding Adjustment, preheating, lubricated, bending processing and the material step of bending angle and size, complete the anti-fold bending of materials in the tube Technique；It is described to comprise the following steps that：
    The buying of raw material：It is stand-by from the materials in the tube that specification is Φ 42.3mm × 2.75mm；
    The installation of Bending Mould：Bending Mould is arranged on hydraulic pipe bender, the power supply of hydraulic pipe bender is opened, then starts Hydraulic pressure；
    The adjustment of bending angle and size：Elbow radius is set as 100mm, position line is marked on Bending Mould, sets bending Angle is 135 °, according to bending angle, increases limited block；
    Lubricated：Bending Mould is cleaned, then butter is applied on Bending Mould；
    Preheating：Materials in the tube flex area is uniformly heated using flame gun, the heat time is 1-1.5min, described to add Hot temperature is 400-500 DEG C；
    Bending is handled：Materials in the tube after heating are placed in Bending Mould to good position line at once, is clamped, then starts liquid Bending pipe machine carries out bending；
    Feeding：The good materials in the tube of bending are taken out from hydraulic pipe bender, whether the good materials in the tube of visual inspection bending have obvious fold, If as qualified without obvious fold, that is, complete the anti-fold bending technique of materials in the tube.
  2. A kind of 2. anti-fold bending technique of materials in the tube according to claim 1, it is characterised in that：The step（4）In The applying amount of butter is 2 millimeters of die surface of covering.
CN201710601252.3A 2017-07-21 2017-07-21 A kind of anti-fold bending technique of materials in the tube Pending CN107824646A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710601252.3A CN107824646A (en) 2017-07-21 2017-07-21 A kind of anti-fold bending technique of materials in the tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710601252.3A CN107824646A (en) 2017-07-21 2017-07-21 A kind of anti-fold bending technique of materials in the tube

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Publication Number Publication Date
CN107824646A true CN107824646A (en) 2018-03-23

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109201940A (en) * 2018-09-20 2019-01-15 河南永益同丰智能科技有限公司 A kind of bending reinforcement processing method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007203366A (en) * 2006-02-06 2007-08-16 Daikin Ind Ltd Bending method, and bending device
CN102240707A (en) * 2011-05-10 2011-11-16 山东雷帕得弹簧有限公司 Automatic pipe bending device and pipe bending process thereof
CN102430626A (en) * 2011-11-23 2012-05-02 吉林昊宇电气股份有限公司 Thin-wall equant (small)-radius elbow secondary forming device and secondary forming method thereof
CN102886391A (en) * 2012-11-06 2013-01-23 中国矿业大学 Method for preparing small-aperture magnesium alloy pipe fitting
CN103659167A (en) * 2012-09-11 2014-03-26 北京首宏钢重型装备技术有限公司 Pipe fitting machining method
CN205289369U (en) * 2016-01-20 2016-06-08 郭金锋 Novel controllable high -efficient bending machine of crookedness
CN205869151U (en) * 2016-08-12 2017-01-11 上海华兑金属有限公司 Bent -pipe mould

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007203366A (en) * 2006-02-06 2007-08-16 Daikin Ind Ltd Bending method, and bending device
CN102240707A (en) * 2011-05-10 2011-11-16 山东雷帕得弹簧有限公司 Automatic pipe bending device and pipe bending process thereof
CN102430626A (en) * 2011-11-23 2012-05-02 吉林昊宇电气股份有限公司 Thin-wall equant (small)-radius elbow secondary forming device and secondary forming method thereof
CN103659167A (en) * 2012-09-11 2014-03-26 北京首宏钢重型装备技术有限公司 Pipe fitting machining method
CN102886391A (en) * 2012-11-06 2013-01-23 中国矿业大学 Method for preparing small-aperture magnesium alloy pipe fitting
CN205289369U (en) * 2016-01-20 2016-06-08 郭金锋 Novel controllable high -efficient bending machine of crookedness
CN205869151U (en) * 2016-08-12 2017-01-11 上海华兑金属有限公司 Bent -pipe mould

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109201940A (en) * 2018-09-20 2019-01-15 河南永益同丰智能科技有限公司 A kind of bending reinforcement processing method

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Application publication date: 20180323