CN104525647A - Tool for cold-forming pipeline - Google Patents

Tool for cold-forming pipeline Download PDF

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Publication number
CN104525647A
CN104525647A CN201410772840.XA CN201410772840A CN104525647A CN 104525647 A CN104525647 A CN 104525647A CN 201410772840 A CN201410772840 A CN 201410772840A CN 104525647 A CN104525647 A CN 104525647A
Authority
CN
China
Prior art keywords
pipeline
arcuate
instrument
thrust
fixture block
Prior art date
Application number
CN201410772840.XA
Other languages
Chinese (zh)
Inventor
赵建铭
Original Assignee
中国核工业二三建设有限公司
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 中国核工业二三建设有限公司 filed Critical 中国核工业二三建设有限公司
Priority to CN201410772840.XA priority Critical patent/CN104525647A/en
Publication of CN104525647A publication Critical patent/CN104525647A/en

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Classifications

    • 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
    • B21D7/04Bending rods, profiles, or tubes over a movably-arranged forming menber

Abstract

The invention belongs to the technical field of metal machining, and provides a tool for cold-forming a pipeline in order to solve the problem that a proper tool for bending a straight pipe for assembling a circulating pipe is absent at present. The tool comprises a bottom plate, an arc-shaped part, a plurality of clamp blocks, a plurality of thrust devices and a tension device, the arc-shaped part is fixed onto the bottom plate, one side of the arc-shaped part far away from the center of the arc-shaped part is provided with an arc-shaped groove matched with the pipeline to be cold-formed, one side of each clamp block is provided with an arc-shaped groove matched with the pipeline to be cold-formed, and the tension device is connected with the pipeline. The pipeline can be bent according to design requirements by the aid of the tool.

Description

A kind of instrument for cold forming pipeline

Technical field

The invention belongs to the technical field of intermetallic composite coating, be specifically related to a kind of instrument for cold forming pipeline.

Background technology

In CPR1000 nuclear power projects, need in the basin of TER/SEL (discharging of waste liquid piping lane) to install circulation pipe, this circulation pipe is the straight tube supply of material, needs several straight tubes to be bent into curved pipe according to designing requirement, then these several curved pipes are welded together, to form circulation pipe.The material of circulation pipe is carbon steel or stainless steel, according to the requirement of CPR1000 nuclear power technology, needs to use the method for cold forming that above-mentioned straight tube is bent into curved pipe; And the caliber of above-mentioned straight tube is Φ 168.3 × 3.4mm, caliber is comparatively large, and straight tube cannot be bent into curved pipe by the instrument of existing cold forming as requested; If entrust other producers to make, also there is no the mould that can meet above-mentioned straight tube bending requirement at present, and it is too high to entrust producer to make one set of die cost specially.

Summary of the invention

In order to solve the problem bending at present the straight tube for assembling circulation pipe without suitable tools, the present invention proposes a kind of instrument for cold forming pipeline, can bend straight tube for assembling circulation pipe according to designing requirement.

Instrument for cold forming pipeline of the present invention comprises base plate, arcuate member, several fixture blocks, several thrust devices and puller system; Described arcuate member is fixed on described base plate, and described arcuate member is the arc groove with the tube fit treating cold forming away from the side in the center of circle of arcuate member; Described fixture block side is the arc groove with the tube fit treating cold forming; Described puller system is connected with described pipeline; When using described instrument, pipeline is positioned over the arc groove place of described arcuate member, described fixture block is snapped on described pipeline, described thrust device is used to promote fixture block to the direction in the center of circle near described arcuate member and then promote described pipeline, described puller system is used to produce described pipeline and described thrust device promotes the identical pulling force of the thrust direction of fixture block, described pipeline and described arcuate member to be fitted.

Wherein, the arc groove on described arcuate member is the semi-circular recesses with the form fit of described pipeline.

Wherein, the upper surface of described arcuate member is provided with several through holes.

Wherein, the arc groove on described fixture block is the semi-circular recesses with described tube fit.

Wherein, described thrust device is jack.

Wherein, described puller system is chain block or electric block.

Instrument for cold forming pipeline of the present invention has following beneficial effect:

1. instrument of the present invention comprises base, arcuate member, fixture block, thrust device and puller system, during use, pipeline is placed on base, fixture block is snapped into above pipeline, then use thrust device to promote fixture block, use puller system to produce pulling force to pipeline simultaneously, with Auxiliary Propulsion Unit, pipeline and arcuate member are fitted, realize the brake forming of pipeline, instrument of the present invention can complete the operation of the brake forming of pipeline, meets the requirement of assembling circulation pipe after pipe bending is shaping.

2. the side of fixture block is the semi-circular recesses with the form fit of pipeline, and fixture block snaps into after above pipeline and pipeline is fitted, and promotes in the process of pipeline like this, the local deformation that the surface can reducing pipeline causes because of stressed at fixture block; The side that arcuate member is fitted with pipeline is the semi-circular recesses with the form fit of pipeline, the local deformation that the surface so also can reducing pipeline causes because of stressed.

3. the upper surface of arcuate member is provided with through hole, when such pipeline and arcuate member are fitted, can see the situation that pipeline and arcuate member are fitted from the outside, to guarantee that pipeline and arcuate member are fitted completely.

4. use instrument of the present invention, at the construction field (site) just can be shaping to pipe bending, save the time of transport pipeline, effectively ensure that installation progress.Tool construction of the present invention is simple, the carbon steel of job site can be used to make arcuate member of the present invention and fixture block, saved construction cost.

Accompanying drawing explanation

Fig. 1 is the schematic perspective view of the instrument for cold forming pipeline of the present invention;

Fig. 2 is the arcuate member of the instrument for cold forming pipeline of the present invention and the schematic perspective view of base plate.

Detailed description of the invention

Instrument of the present invention is introduced below in conjunction with Fig. 1 and Fig. 2.

As depicted in figs. 1 and 2, the instrument for cold forming pipeline of the present invention, comprises arcuate member 10, several fixture blocks 11, several thrust devices 12, puller system 13 and base plate 17.Base plate 17 is fixed on the ground of job site; Arcuate member 10 is fixed on base plate 17; Arcuate member 10 entirety is the structure of arc, and arcuate member 10 is the semi-circular recesses with the form fit of the pipeline 14 treating cold forming away from the side in the center of circle of arcuate member 10, and the upper surface of arcuate member 10 is provided with through hole 15.The side of fixture block 11 is the semi-circular recesses with the form fit of pipeline 14.Thrust device 12 is positioned on base plate 17; Puller system 13 is connected with pipeline 14.Thrust device 12 shown in Fig. 1 is jack, can thrust device 12 be positioned on base plate 17, then at the one piece of rectangular block 16 of placement below of thrust device 12, this rectangular block 16 be welded on base plate 17, to be fixed by thrust device 12, thrust device 12 is made to produce thrust; Puller system 13 is electric block, and puller system 13 also can be chain block.When using instrument of the present invention, near arc groove pipeline 14 being positioned over arcuate member 10, several fixture blocks 11 are snapped into above pipeline 14, thrust device 12 is used to promote fixture block 11 to the direction in the center of circle near arcuate member 10 and then promote pipeline 14, use puller system 13 pairs of pipelines 14 to produce the pulling force identical with the thrust direction that pipeline 14 is subject to simultaneously, with Auxiliary Propulsion Unit 12, pipeline 14 and arcuate member 10 are fitted.The thrust device 12 of the instrument for cold forming pipeline of the present invention is not limited to above-mentioned jack, hydraulic cylinder, oil hydraulic cylinder can also be adopted, as long as function of the present invention can both be realized to the structure that pipeline 14 produces thrust, all belong to the scope of technical scheme of the present invention.The puller system 13 of instrument of the present invention is not limited to above-mentioned electric block, as long as can both realize function of the present invention to the structure that pipeline 14 produces pulling force, all belongs to the scope of technical scheme of the present invention.

The using method of instrument of the present invention: the first step, is fixed on the ground of job site by base plate 17, pipeline 14 is positioned over the position near the arc groove of arcuate member 10 on base plate 17; Several fixture blocks 11 from one end of pipeline 14, are snapped into above pipeline 14, such as, can use four fixture blocks 11 by second step, snap into above pipeline 14 by these four fixture blocks 11, and the spacing of adjacent two fixture blocks 11 is 0.3m; 3rd step, use several thrust devices 12, direction to the center of circle near arcuate member 10 promotes fixture block 11, and then promote pipeline 14, use puller system 13 pairs of pipelines 14 to produce pulling force, the direction of the thrust that direction and thrust device 12 pairs of pipelines 14 of this pulling force produce is identical, until pipeline 14 and arcuate member 10 are fitted simultaneously, first one of pipeline 14 section can be fitted with arcuate member 10 in this step, multiple thrust device 12 also can be used to be fitted with arcuate member by whole pipeline 14.Wherein pipeline 14 and arcuate member 10 are fitted for Auxiliary Propulsion Unit 12 by puller system 13; The side of fixture block 11 is the semi-circular recesses with the form fit of pipeline 14, and fixture block 11 snaps into after above pipeline 14 and pipeline 14 is fitted, and promotes in the process of pipeline 14 like this, the local deformation that the surface can reducing pipeline 14 causes because of stressed at fixture block 11; The side that arcuate member 10 and pipeline 14 are fitted is the semi-circular recesses with the form fit of pipeline 14, the local deformation that the surface can reducing pipeline 14 like this causes because of stressed; In this step, ensure that pipeline 14 and arcuate member 10 are fitted, space can not be left between pipeline 14 and arcuate member 10, by the through hole that the upper surface of arcuate member 10 is arranged, the situation that arcuate member 10 and pipeline 14 are fitted can be seen from the outside, to check whether arcuate member 10 and pipeline 14 fit, completely if do not fitted completely, need to use thrust device 12 to continue to promote pipeline 14, until pipeline 14 and arcuate member 10 are fitted completely; 4th step, if use this instrument to make whole pipeline 14 all fit with arcuate member 10 during construction, then unloads thrust device 12 from fixture block 11, is unloaded by fixture block 11 from pipeline 14, then just obtain the pipeline 14 of brake forming; If use this instrument to be make one of pipeline 14 section to fit with arcuate member 10 during construction, so the fixture block 11 be connected with this segment pipe is welded on base plate, thrust device 12 is unloaded from fixture block 11, next section of pipeline 14 and arcuate member 10 are fitted by the step repeating the 3rd step, so piecemeal pipeline 14 and arcuate member 10 are fitted, until whole pipeline 14 is all fitted with arcuate member 10; Then fixture block 11 is unloaded from base plate, just obtain the pipeline 14 of brake forming.

Instrument of the present invention comprises base, arcuate member 10, fixture block 11, thrust device 12 and puller system 13, during use, pipeline 14 is placed on base, fixture block 11 is snapped into above pipeline 14, then thrust device 12 is used to promote fixture block, use puller system 13 pairs of pipelines to produce pulling force simultaneously, with Auxiliary Propulsion Unit 12, pipeline 14 and arcuate member 10 are fitted, realize the brake forming of pipeline, instrument of the present invention can complete the operation of the brake forming of pipeline, meets the requirement of assembling circulation pipe after pipe bending is shaping.Use instrument of the present invention, at the construction field (site) just can be shaping to pipe bending, save the time of transport pipeline, effectively ensure that installation progress.Tool construction of the present invention is simple, the carbon steel of job site can be used to make arcuate member 10 of the present invention and fixture block 11, saved construction cost.

Claims (6)

1. for an instrument for cold forming pipeline, it is characterized in that, comprise base plate, arcuate member, several fixture blocks, several thrust devices and puller system; Described arcuate member is fixed on described base plate, and described arcuate member is the arc groove with the tube fit treating cold forming away from the side in the center of circle of arcuate member; Described fixture block side is the arc groove with the tube fit treating cold forming; Described puller system is connected with described pipeline; When using described instrument, pipeline is positioned over the arc groove place of described arcuate member, described fixture block is snapped on described pipeline, described thrust device is used to promote fixture block to the direction in the center of circle near described arcuate member and then promote described pipeline, described puller system is used to produce described pipeline and described thrust device promotes the identical pulling force of the thrust direction of fixture block, described pipeline and described arcuate member to be fitted.
2. the instrument for cold forming pipeline according to claim 1, is characterized in that, the arc groove on described arcuate member is the semi-circular recesses with the form fit of described pipeline.
3. the instrument for cold forming pipeline according to claim 1 and 2, is characterized in that, the upper surface of described arcuate member is provided with several through holes.
4. the instrument for cold forming pipeline according to claim 1 and 2, is characterized in that, the arc groove on described fixture block is the semi-circular recesses with described tube fit.
5. the instrument for cold forming pipeline according to claim 1 and 2, is characterized in that, described thrust device is jack.
6. the instrument for cold forming pipeline according to claim 1 and 2, is characterized in that, described puller system is chain block or electric block.
CN201410772840.XA 2014-12-12 2014-12-12 Tool for cold-forming pipeline CN104525647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410772840.XA CN104525647A (en) 2014-12-12 2014-12-12 Tool for cold-forming pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410772840.XA CN104525647A (en) 2014-12-12 2014-12-12 Tool for cold-forming pipeline

Publications (1)

Publication Number Publication Date
CN104525647A true CN104525647A (en) 2015-04-22

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Family Applications (1)

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CN201410772840.XA CN104525647A (en) 2014-12-12 2014-12-12 Tool for cold-forming pipeline

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344760A (en) * 2015-12-04 2016-02-24 佛山高富中石油燃料沥青有限责任公司 Pipe bending device

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500980A (en) * 1948-11-15 1950-03-21 Crutcher Rolfs Cummings Compan Pipe-bending machine
US3943747A (en) * 1973-12-27 1976-03-16 Tubeco, Inc. Portable hot pipe bending apparatus
JPS58148023A (en) * 1982-02-26 1983-09-03 Hashimoto Forming Co Ltd Manufacture of molding having bent part
CN201186313Y (en) * 2008-04-08 2009-01-28 阳向东 Machine for automatically molding bending pipe of aluminum chair
CN201625694U (en) * 2010-01-10 2010-11-10 胜利油田胜利动力机械集团有限公司 Angle steel circular arc hot bending tooling
CN101912907A (en) * 2010-08-13 2010-12-15 安徽瑶海钢结构股份有限公司 Cold-bending processing equipment and method of steel pipe
CN102151727A (en) * 2010-11-24 2011-08-17 南通众联科技服务有限公司 Bending machine
CN102489561A (en) * 2011-12-13 2012-06-13 河北二十冶工程技术有限公司 Cold-bending process for steel tube and special machining-moulding device thereof
CN102500664A (en) * 2011-11-23 2012-06-20 大连百合氧枪喷头有限公司 Arc curving machine for water jacket pipe of crystallizer of continuous casting machine in metallurgical industry
CN102500641A (en) * 2011-12-14 2012-06-20 无锡鼎丰不锈钢管有限公司 Manufacturing process of stainless steel bent tube type exhaust manifold
CN202606595U (en) * 2012-06-08 2012-12-19 天津市深呼吸自行车业有限公司 Pipe bending machine
CN102989847A (en) * 2012-11-30 2013-03-27 中国北车集团大连机车车辆有限公司 Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof
KR20130070367A (en) * 2011-12-19 2013-06-27 주식회사 성우하이텍 Ejecting device for stretch bender
CN203508686U (en) * 2013-08-30 2014-04-02 东莞市凤岗黎明型材拉弯设备厂 Double-cylinder push bending machine
CN203508685U (en) * 2013-08-30 2014-04-02 东莞市凤岗黎明型材拉弯设备厂 Double-face push bending machine
CN104190801A (en) * 2014-09-19 2014-12-10 东风襄阳旅行车有限公司 Fast forming die for two-dimension radians of rectangular pipes

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500980A (en) * 1948-11-15 1950-03-21 Crutcher Rolfs Cummings Compan Pipe-bending machine
US3943747A (en) * 1973-12-27 1976-03-16 Tubeco, Inc. Portable hot pipe bending apparatus
JPS58148023A (en) * 1982-02-26 1983-09-03 Hashimoto Forming Co Ltd Manufacture of molding having bent part
CN201186313Y (en) * 2008-04-08 2009-01-28 阳向东 Machine for automatically molding bending pipe of aluminum chair
CN201625694U (en) * 2010-01-10 2010-11-10 胜利油田胜利动力机械集团有限公司 Angle steel circular arc hot bending tooling
CN101912907A (en) * 2010-08-13 2010-12-15 安徽瑶海钢结构股份有限公司 Cold-bending processing equipment and method of steel pipe
CN102151727A (en) * 2010-11-24 2011-08-17 南通众联科技服务有限公司 Bending machine
CN102500664A (en) * 2011-11-23 2012-06-20 大连百合氧枪喷头有限公司 Arc curving machine for water jacket pipe of crystallizer of continuous casting machine in metallurgical industry
CN102489561A (en) * 2011-12-13 2012-06-13 河北二十冶工程技术有限公司 Cold-bending process for steel tube and special machining-moulding device thereof
CN102500641A (en) * 2011-12-14 2012-06-20 无锡鼎丰不锈钢管有限公司 Manufacturing process of stainless steel bent tube type exhaust manifold
KR20130070367A (en) * 2011-12-19 2013-06-27 주식회사 성우하이텍 Ejecting device for stretch bender
CN202606595U (en) * 2012-06-08 2012-12-19 天津市深呼吸自行车业有限公司 Pipe bending machine
CN102989847A (en) * 2012-11-30 2013-03-27 中国北车集团大连机车车辆有限公司 Fixture for machining lifting ring of car coupler of locomotive and manufacturing process thereof
CN203508686U (en) * 2013-08-30 2014-04-02 东莞市凤岗黎明型材拉弯设备厂 Double-cylinder push bending machine
CN203508685U (en) * 2013-08-30 2014-04-02 东莞市凤岗黎明型材拉弯设备厂 Double-face push bending machine
CN104190801A (en) * 2014-09-19 2014-12-10 东风襄阳旅行车有限公司 Fast forming die for two-dimension radians of rectangular pipes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105344760A (en) * 2015-12-04 2016-02-24 佛山高富中石油燃料沥青有限责任公司 Pipe bending device

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Application publication date: 20150422