CN104175066B - Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process - Google Patents
Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process Download PDFInfo
- Publication number
- CN104175066B CN104175066B CN201410319908.9A CN201410319908A CN104175066B CN 104175066 B CN104175066 B CN 104175066B CN 201410319908 A CN201410319908 A CN 201410319908A CN 104175066 B CN104175066 B CN 104175066B
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- Prior art keywords
- pipe fitting
- inner mold
- blank
- mold
- jumping
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B21D41/00—Application of procedures in order to alter the diameter of tube ends
- B21D41/02—Enlarging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process, the heating of advanced line pipe part blank and the preheating of interior outer mold, pipe fitting is clamped, drive at the uniform velocity feeding of pipe fitting by fixture, it is motionless that internal mold keeps, under the effect of the internal mold frustum of a cone, pipe fitting end diameter starts to expand, form horn-like, then inner mold and pipe fitting keep certain velocity ratio to move in the same way, constantly there is plastic deformation and fill die cavity in pipe fitting end, reach the object of poly-material, after poly-material completes in replacing, outer mold, inner mold is with suitable velocity reversal's motion, the deformed step of jumping-up of blank, finally fill up die cavity, reach required head flanges shape, whole technique is simple, replace original Welding Structure, make the pipe fitting capability and performance of preparation good, and production efficiency is high, environmental protection. can realize continuously poly-material and upsetting process, one-shot forming after pipe fitting clamping, efficiency is very high.
Description
Technical field
The invention belongs to metal forming technical field, be specifically related to a kind of ultra-long tube head methodBlue axially pushing gathers material and jumping-up combination process.
Background technology
The Pneumatic brake systems of railway freight-car is most important for the traffic safety of lorry, its brakingThe connected mode of piping has largely determined the quality of brakes, in piping connected modeIn, flange is connected to most widely used general and the most ripe scheme, and traditional flange connection isFittings body is welded on to stainless steel piping two ends, flange is enclosed within on fittings body, tighter with boltGu flange, but this mode exists a lot of weak points, for example, between fittings body and pipe fittingWelding can cause environmental pollution, and the quality of welding is bad in addition easily causes crackle and leakage, veryTo rupturing, having a strong impact on traffic safety, so a kind of new Integral flange pipe mustSo become development trend, and the moulding process of pipe fitting head flanges is the pass of this Integral flange pipeKey technology, does not also have this moulding process at present.
Summary of the invention
In order to overcome the shortcoming of above-mentioned connected mode, the object of the invention is to propose a kind of overlengthAxially pushing of tube head flange gathers material and jumping-up combination process, cancelled the welding knot of fittings bodyStructure, thus quality of connection can be ensured, and production efficiency is high, environmental protection.
To achieve these goals, the technical scheme that the present invention takes is:
Axially pushing of ultra-long tube head flanges gathers material and a jumping-up combination process, comprises followingStep:
1), for metal tube blank 4, use induction heating apparatus 2 by 4 of pipe fitting blanksAlso carry out outer mold 1 and inner mold 5 more than being heated to recrystallization temperature the one end that need processPreheating, preheat temperature is 350～450 DEG C;
2) pipe fitting blank 4 right-hand members that heated are clamped by fixture 3, simultaneously withThe speed V of 8mm/s～12mm/s1Along axial feed, now outer mold 1 and inner mold 5 are solidFixed motionless, pipe fitting blank 4 under the effect of inner mold 5 right-hand member taper seats, enlarged-diameter, shapeBecome horn-like;
3), when pipe fitting blank 4 is about to fill up die cavity, inner mold 5 starts to be less than speed V1'sSpeed V2To left movement, speed V1And V2According to definite velocity ratio, just to fill out with blankBe full of die cavity and be as the criterion, meanwhile, pipe fitting blank 4 still clamps through fixture 3 feeding that remains a constant speed, noDisconnected generation plastic deformation, progressively fills die cavity;
4) inner mold 5 reaches after predefined displacement to left movement, stops inner mold 5 HesThe motion of fixture 3, this displacement make poly-material volume equal will moulding flange volume, completeThe object of poly-material;
5) position of maintenance pipe fitting blank 4, changes inner mold 5, outer mold 1, inner mold 5With the speed V of 4mm/s～6mm/s3Move right, fixture 3 and pipe fitting blank 4 keep fixing,Complete the step of jumping-up, make blank form required head flanges shape;
6) outer mold 1 and fixture 3 are removed half after machining, inner mold 5 are taken out,Can obtain the pipe fitting of machine-shaping.
The present invention has the following advantages:
One, technique is simple, has cancelled the fittings body structure of welding on original pipe fitting, thereby greatlyImprove pipe fitting quality, and environmental protection.
Two, can realize continuously poly-material and upsetting process, can meet not by control rate ratioWith the poly-material technological requirement of material.
Brief description of the drawings
Fig. 1 is the pipe fitting flange end geomery that needs shaping.
Fig. 2 is pipe fitting clamping schematic diagram before processing.
Fig. 3 is the first stage schematic diagram of poly-material work step.
Fig. 4 is the second stage schematic diagram of poly-material work step.
Fig. 5 is the jumping-up processing step schematic diagram after outer mold in changing.
Fig. 6 is the schematic diagram that technique completes.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
Axially pushing of ultra-long tube head flanges gathers material and a jumping-up combination process, comprises followingStep:
1) for metal tube blank 4, the pipe fitting end shape that be shaped as shown in Figure 1,Use induction heating apparatus 2 that one end of pipe fitting blank 4 required processing is heated to recrystallization temperatureAbove, outer mold 1 and inner mold 5 are also carried out to preheating, preheat temperature is 350～450 DEG C;
2), with reference to Fig. 2, pipe fitting blank 4 right-hand members that heated are clamped by fixture 3, simultaneouslyWith the speed V of 8mm/s～12mm/s1Along axial feed, now outer mold 1 and inner mold 5Maintain static, pipe fitting blank 4 under the effect of inner mold 5 right-hand member taper seats, enlarged-diameter,Form horn-like;
3) as shown in Figure 3, when pipe fitting blank 4 is about to fill up die cavity, inner mold 5 start withBe less than speed V1Speed V2To left movement, speed V1With speed V2According to definite speedRatio, just will fill full die cavity with blank and be as the criterion, and meanwhile, pipe fitting blank 4 still presss from both sides through fixture 3Hold the feeding that remains a constant speed, plastic deformation constantly occurs, progressively fill die cavity;
4) as shown in Figure 4, inner mold 5 stops after left movement reaches predefined displacementThe motion of inner mold 5 and fixture 3, this displacement make poly-material volume equal will moulding flangeVolume, completes poly-object of expecting;
5) as shown in Figure 5, keep the position of pipe fitting blank 4, change inner mold 5, external moldTool 1, inner mold 5 is with the speed V of 4mm/s～6mm/s3Move right fixture 3 and pipe fittingBlank 4 keeps fixing, completes the step of jumping-up, makes blank form required head flanges shapeShape, as shown in Figure 6;
6) outer mold 1 and fixture 3 are removed half after machining, inner mold 5 are taken out,Can obtain the pipe fitting of machine-shaping.
Claims (1)
1. axially pushing of ultra-long tube head flanges gathered material and a jumping-up combination process, its spyLevy and be, comprise the following steps:
1), for metal tube blank (4), use induction heating apparatus (2) by pipe fitting blank(4) more than one end of required processing is heated to recrystallization temperature, to outer mold (1) and internal moldTool (5) also carries out preheating, and preheat temperature is 350～450 DEG C;
2) pipe fitting blank (4) right-hand member heating is clamped by fixture (3), simultaneously withThe speed V of 8mm/s～12mm/s1Along axial feed, now outer mold (1) and inner mold(5) maintain static, pipe fitting blank (4) under the effect of inner mold (5) right-hand member taper seat,Enlarged-diameter, forms horn-like;
3), when pipe fitting blank (4) is about to fill up die cavity, inner mold (5) starts to be less than speedDegree V1Speed V2To left movement, speed V1And V2According to definite velocity ratio, firm with blankWill fill well full die cavity and be as the criterion, meanwhile, pipe fitting blank (4) still keeps through fixture (3) clamping, constantly there is plastic deformation at the uniform velocity feeding, progressively fills die cavity;
4) inner mold (5) stops inner mold (5) after left movement reaches predefined displacementAnd the motion of fixture (3), this displacement make poly-material volume equal will moulding flange volume,Complete the object of poly-material;
5) position of maintenance pipe fitting blank (4), changes inner mold (5), outer mold (1),Inner mold (5) is with the speed V of 4mm/s～6mm/s3Move right fixture (3) and pipe fittingIt is fixing that blank (4) keeps, and completes the step of jumping-up, makes blank form required head methodBlue shape;
6) outer mold (1) and fixture (3) are half-and-half removed after machining, by inner mold(5) take out, can obtain the pipe fitting of machine-shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319908.9A CN104175066B (en) | 2014-07-07 | 2014-07-07 | Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410319908.9A CN104175066B (en) | 2014-07-07 | 2014-07-07 | Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104175066A CN104175066A (en) | 2014-12-03 |
| CN104175066B true CN104175066B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410319908.9A Expired - Fee Related CN104175066B (en) | 2014-07-07 | 2014-07-07 | Axially pushing of a kind of ultra-long tube head flanges gathers material and jumping-up combination process |
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| CN (1) | CN104175066B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108637609B (en) * | 2018-05-23 | 2019-07-26 | 温州宏科汽配有限公司 | A kind of moulding process of engine hydraulic brake pipe |
| CN109807276B (en) * | 2019-03-18 | 2020-05-22 | 哈尔滨工业大学 | Material distribution control forming method for long-supporting-arm lug disc-shaped forge piece |
| CN111872257B (en) * | 2020-07-30 | 2022-03-18 | 中国工程物理研究院机械制造工艺研究所 | Method for manufacturing long pipe fitting with straight flanges at two ends |
| CN114260407A (en) * | 2021-12-09 | 2022-04-01 | 西南铝业（集团）有限责任公司 | Preparation process of aluminum alloy thin-wall, long-cylinder and thick-flange forging |
| CN114393166A (en) * | 2022-01-06 | 2022-04-26 | 钢铁研究总院 | Hollow long shaft piece end flange extrusion forming device and process thereof |
| CN114833286B (en) * | 2022-04-27 | 2024-04-30 | 太原理工大学 | Flaring-upsetting composite forming device and method for thin-wall pipe end flange |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322683A (en) * | 1997-02-26 | 1998-09-02 | Usui Kokusai Sangyo Kk | Fuel injection pipe |
| CN1886210A (en) * | 2003-11-28 | 2006-12-27 | 威齐格及弗兰克有限责任公司 | Method for producing a coupling on a pipe and device for producing said coupling |
| CN1887473A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Making process of drill pipe with internally and externally thickened end |
| CN101096044A (en) * | 2006-06-30 | 2008-01-02 | 宝山钢铁股份有限公司 | Method for manufacturing over-length upset end drilling rod |
| CN101543946A (en) * | 2008-03-28 | 2009-09-30 | 上海海隆石油管材研究所 | Method for preparing aluminium alloy drill pipe body with over-long upset ends |
| RO122627B1 (en) * | 2006-11-03 | 2009-10-30 | Institutul De Cercetare Şi Proiectare Tehnologică Pentru Construcţii De Maşini - Ictcm S.A. | Process and device for shaping pipes for tee joining |
-
2014
- 2014-07-07 CN CN201410319908.9A patent/CN104175066B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2322683A (en) * | 1997-02-26 | 1998-09-02 | Usui Kokusai Sangyo Kk | Fuel injection pipe |
| CN1886210A (en) * | 2003-11-28 | 2006-12-27 | 威齐格及弗兰克有限责任公司 | Method for producing a coupling on a pipe and device for producing said coupling |
| CN1887473A (en) * | 2005-06-30 | 2007-01-03 | 宝山钢铁股份有限公司 | Making process of drill pipe with internally and externally thickened end |
| CN101096044A (en) * | 2006-06-30 | 2008-01-02 | 宝山钢铁股份有限公司 | Method for manufacturing over-length upset end drilling rod |
| RO122627B1 (en) * | 2006-11-03 | 2009-10-30 | Institutul De Cercetare Şi Proiectare Tehnologică Pentru Construcţii De Maşini - Ictcm S.A. | Process and device for shaping pipes for tee joining |
| CN101543946A (en) * | 2008-03-28 | 2009-09-30 | 上海海隆石油管材研究所 | Method for preparing aluminium alloy drill pipe body with over-long upset ends |
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| Publication number | Publication date |
|---|---|
| CN104175066A (en) | 2014-12-03 |
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