CN102950421A - Integrally-formed combined pipe fitting manufacturing method - Google Patents
Integrally-formed combined pipe fitting manufacturing method Download PDFInfo
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- CN102950421A CN102950421A CN2011102374585A CN201110237458A CN102950421A CN 102950421 A CN102950421 A CN 102950421A CN 2011102374585 A CN2011102374585 A CN 2011102374585A CN 201110237458 A CN201110237458 A CN 201110237458A CN 102950421 A CN102950421 A CN 102950421A
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Abstract
An integrally-formed combined pipe fitting manufacturing method includes the steps: (a) cutting out a main metal pipe fitting and at least one auxiliary metal pipe fitting; (b) placing the main metal pipe fitting into a first die, subjecting the main metal pipe fitting to preliminary forming by means of internal pressure and press forming and high-pressure fluid forming to form a base section and at least one protruding section protruding out of the base section on the main metal pipe fitting; (c) combining one ends of the auxiliary metal pipe fittings with the protruding sections, welding the joints of the auxiliary metal pipe fittings with the protruding sections, and flatly melting weld beads; and (d) placing the welded pipe fitting into a second die to subject the pipe fitting to final forming by means of high-pressure fluid forming.
Description
Technical field
The present invention relates to a kind of manufacture method of bicycle pipe part, particularly relate to a kind of manufacture method of integrated combined pipe fitting.
Background technology
Along with the awakening of people's recreation consciousness, bicycle no longer is a kind of simple vehicles, and is that people are used to be used to a kind of tool movement as recreation and body-building.So people also with regard to relative comparatively attention, no matter be practicality or car body profile, are the important steps that the bicycle manufacturer need to carefully consider for the requirement of bicycle.
In order to improve the bicycle profile to increase overall appearance, the manufacture of its cycle frame, earliest period is to utilize welding manner, yet, utilize welding manner, pipe fitting can stay welding bead after welding, do not cause profile smooth and affect attractive in appearancely, and easily causes defective and stress to concentrate and affects structural strength in weld.Other has a kind of shaped by fluid pressure that utilizes, and promote the practice of the fluency of pipe fitting profile, but this utilizes the mode of shaped by fluid pressure, if for the comparatively complicated member of profile, pipe fitting often becomes the thick and heavy not easy-formation that causes in joint, is difficult to control deformation tendency, easily forms the surface of became uneven.
Consult Fig. 1, M306964 number announcement of TaiWan, China new patent is a kind of to utilize welding manner and the vehicle frame member of the shaped by fluid pressure of arranging in pairs or groups, this new patent is disclosed to be with the relative hollow metal pipe fitting 10 of solder joint more than two, and cooperate mould 11 in the shaped by fluid pressure mode, with each metal tube 10, and weldering knot position 12 coextends molded.Yet, the disclosed way of this new patent, its weldering knot position 12 is at the boundary of aforementioned pipe fitting 10 overlapping 13, because the tube wall of aforementioned pipe fitting 10 is overlapped, add the scolder that welding process is inserted, so can cause the pipe thickness thickening after the welding, and add that this boundary overlapping 13 is 10 maximum places of profile variation of aforementioned pipe fitting, in time, is overlaying state or is the structural plane of sunken inside, so in the process of shaped by fluid pressure, easy became uneven when the tube wall expansion of its boundary overlapping 13 and moulding causes yield low.So utilize this kind way, the effect of the vehicle frame profile fluency after its moulding is still limited, and is very huge on the yield impact.
Summary of the invention
The object of the present invention is to provide a kind of for promoting vehicle frame profile fluency and manufacture method for increasing the integrated combined pipe fitting of structural strength.
The manufacture method of the integrated combined pipe fitting of the present invention is characterized in that comprising the following step:
(a): intercept a main metal tube, and at least one secondary metal tube.
(b): should insert in first mould by main metal tube, carry out the first one-step forming of this main metal tube in the mode of cold-working formula expansion-molding, make this main metal tube form a base segment, and at least one protrudes from the convex section of this base segment.
(c): should engage one another with this convex section by pair metal tube one end, and weld in the joint of this pair metal tube and this convex section.
(d): this pipe fitting after will welding is inserted in second mould, carries out the final molding of this pipe fitting in the mode of high-pressure fluid moulding.
The manufacture method of the integrated combined pipe fitting of the present invention, pressure, punch forming in the first utilization in this step (b), recycling high-pressure fluid molding mode carries out the first one-step forming of this main metal tube, melts the downhand welding road after having welded in this step (c) again.
The manufacture method of the integrated combined pipe fitting of the present invention also comprises in this step (b) this pair metal tube is inserted in the 3rd mould, carries out just one-step forming of this pair metal tube with interior pressure, stamping forming mode.
The manufacture method of the integrated combined pipe fitting of the present invention also comprises a step (e) that is positioned between this step (b) and this step (c): this convex section one end-grain cutting is disconnected to form an axis hole.
The manufacture method of the integrated combined pipe fitting of the present invention, the welding method of this step (c) can be any of gas welding and arc welding.
The manufacture method of the integrated combined pipe fitting of the present invention, this main metal tube and the employed material of this pair metal tube are aluminium alloy.
The manufacture method of the integrated combined pipe fitting of the present invention, this convex section and this pair metal tube quantity are all two in this step (b), this step (d) is all blocked the aforementioned auxiliary metal tube in contrast to an end of aforementioned convex section respectively, and this base segment one end pours into high-pressure fluid certainly, make this base segment be shaped to a head tube of extending along axis direction, aforementioned convex section and aforementioned auxiliary metal tube cooperatively interact and are shaped between this head tube two end opposite respectively along an approximate vertical and are away from upper Guan Yuyi lower pipe that this axis direction extends.
The manufacture method of the integrated combined pipe fitting of the present invention, this convex section and this pair metal tube quantity are all two in this step (b), in this step (d) the aforementioned auxiliary metal tube is all blocked in contrast to an end of aforementioned convex section respectively, and an end of this base segment pours into high-pressure fluid certainly, this base segment is extended along an axis direction, and aforementioned convex section and aforementioned auxiliary metal tube are cooperatively interacted be shaped to respectively and be roughly parallel to the structure that this axis direction extends, this base segment along one, aforementioned convex section matches with the aforementioned auxiliary metal tube and molds a front fork.
The manufacture method of the integrated combined pipe fitting of the present invention, this convex section and this pair metal tube quantity are all one in this step (b), should block in contrast to an end of this convex section by the pair metal tube in this step (d), and this base segment one end pours into high-pressure fluid certainly, make this base segment be shaped to a head tube of extending along axis direction, this convex section and this pair metal tube cooperatively interact and are shaped between this head tube two end opposite along an approximate vertical and are away from upper pipe that this axis direction extends.
The manufacture method of the integrated combined pipe fitting of the present invention, this convex section and this pair metal tube quantity are all one in this step (b), should block in contrast to an end of this convex section by the pair metal tube in this step (d), and this base segment one end pours into high-pressure fluid certainly, this base segment is extended along an axis direction, and this convex section and this pair metal tube are cooperatively interacted be shaped to along an approximate vertical and the structure of extending away from this axis direction.
Beneficial effect of the present invention is: this convex section of this main metal tube with weld again after this pair metal tube engages, because the joint of this convex section and this pair metal tube only part has tube wall overlapping, so pipe thickness does not have thickening, and the profile variability between this convex section and this pair metal tube is little, when carrying out this step (d), can allow the easier expansion of this pipe fitting change, and reach the effect of profile smoothness.
In should be understood that within the scope of the present invention, above-mentioned each technical characterictic of the present invention and can making up mutually between specifically described each technical characterictic in below (eg embodiment), thus consist of new or preferred technical scheme.As space is limited, this tired stating no longer one by one.
Description of drawings
Fig. 1 is an existing cycle frame molding component schematic flow sheet;
Fig. 2 is the flow chart of first preferred embodiment of the manufacture method of the integrated combined pipe fitting of the present invention;
Fig. 3 is the moulding schematic flow sheet of this first preferred embodiment;
Fig. 4 is the stereogram of second preferred embodiment that shows the manufacture method of the integrated combined pipe fitting of the present invention;
Fig. 5 is the stereogram of the 3rd preferred embodiment that shows the manufacture method of the integrated combined pipe fitting of the present invention;
Fig. 6 is the stereogram of the 4th preferred embodiment that shows the manufacture method of the integrated combined pipe fitting of the present invention;
Fig. 7 is the stereogram of the 5th preferred embodiment that shows the manufacture method of the integrated combined pipe fitting of the present invention;
Fig. 8 is the stereogram of the 6th preferred embodiment that shows the manufacture method of the integrated combined pipe fitting of the present invention.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
Consult Fig. 2 and Fig. 3, the first preferred embodiment of the manufacture method of the integrated combined pipe fitting of the present invention comprises the following step:
Step 101: intercept a main metal tube 2, and two secondary metal tubes 3.This main metal tube 2 is aluminium alloy with aforementioned auxiliary metal tube 3 employed materials.
Step 102: should insert in first mould 4 by main metal tube 2, pressure, punch forming in utilizing first, recycling high-pressure fluid molding mode carries out the first one-step forming of this main metal tube 2, makes this main metal tube 2 form a base segment 21, and two convex sections 22 that protrude from this base segment 21.Aforementioned auxiliary metal tube 3 is inserted respectively the 3rd mould 5, reaches in the 4th mould 6, carries out just one-step formings of aforementioned auxiliary metal tube 3 with interior pressure, stamping forming mode.This cold-working formula expansion-molding carries out stamping forming mode after referring to utilize first internally pressuring shaping again.
Step 103: aforementioned convex section 22 1 end-grain cutting are disconnected, to form an axis hole 221.
Step 104: respectively aforementioned auxiliary metal tube 3 one ends are engaged one another with cut-out one end of aforementioned convex section 22, and weld in the joint 222 of aforementioned auxiliary metal tube 3 with aforementioned convex section 22, melt again the downhand welding road after having welded.This main metal tube 2 is communicated with each other with aforementioned auxiliary metal tube 3.The mode of this welding can be utilized any of gas welding and arc welding.
Step 105: this pipe fitting after will welding is inserted in second mould 7, carries out the final molding of this pipe fitting in the mode of high-pressure fluid moulding.In this first preferred embodiment, its high-pressure fluid moulding can be fluid pressure type, and its this pipe fitting does not heat, and utilizes fluid pressure to be 1200kg/cm
2Pressure parameter carry out extrusion forming, that aforementioned auxiliary metal tube 3 is all blocked in contrast to an end of aforementioned convex section 22 respectively, and these base segment 21 1 ends pour into highly pressurised liquid with a pressure source certainly, certainly apply mode and also can pour into highly pressurised liquid with this pressure source at any end of aforementioned auxiliary metal tube 3, and block an end of these base segment 21 two ends and another secondary metal tube 8, make this base segment 21 be shaped to a head tube of extending along axis direction L1, aforementioned convex section 22 and aforementioned auxiliary metal tube 3 cooperatively interact and are shaped between this head tube two end opposite respectively along an approximate vertical and are away from upper Guan Yuyi lower pipe that this axis direction L1 extends.The high-pressure fluid moulding can also be vapour-pressure type, and its practice and fluid pressure type are roughly the same, and its difference is in its pressure source (not shown) and has two, and needs when moulding first this pipe heating to 350～400 ℃, and utilizes gas pressure to be 180kg/cm
2Pressure parameter carry out extrusion forming.
Consult Fig. 2 and Fig. 4, be the second preferred embodiment of the manufacture method of the integrated combined pipe fitting of the present invention, its step and this first embodiment are roughly the same.
Its difference be in, this step 105 is after pouring into high-pressure fluid, make aforementioned convex section 22 and aforementioned auxiliary metal tube 3 cooperatively interact moulding respectively along a structure that is roughly parallel to this axis direction L1 extension, this base segment 21, aforementioned convex section 22 match with aforementioned auxiliary metal tube 3 and mold a front fork that is equivalent in the vehicle frame.
Consult Fig. 2 and Fig. 5, be the 3rd preferred embodiment of the manufacture method of the integrated combined pipe fitting of the present invention, its step and this first embodiment are roughly the same.
Its difference be in, this convex section 22 is all one with these pair metal tube 3 quantity.This convex section 22 of this step 105 and this pair metal tube 3 cooperatively interact and are shaped between this head tube two end opposite along an approximate vertical and are away from the upper pipe that this axis direction L1 extends.
It is worth mentioning that the practice of the 3rd embodiment also can be as shown in Figure 6, allow this base segment 21 form a upper left fork and the upper right fork of a upper fork in vehicle frames, and allow aforementioned convex section 22 be connected with this pair metal tube 3 respectively and form on this and pitch.Also can allow this base segment 21 form a three-way pipe as shown in Figure 7, this convex section 22 and this pair metal tube 3 form the structure of a middle pipe.Again or as shown in Figure 8, this base segment 21 forms a three-way pipe, and this convex section 22 and this pair metal tube 3 form the middle tubular construction of a bearing of tools.
According to the above as can be known, the manufacture method of the integrated combined pipe fitting of the present invention has following advantages and effect:
(1) by this convex section 22 of this main metal tube 2 with weld again after this pair metal tube 3 engages, because this convex section 22 only partly has tube wall overlapping with the joint 222 of this pair metal tube 3, so pipe thickness does not have thickening, and the profile variability that this convex section 22 and this pair metal tube are 3 is little, when carrying out this step 105, can allow this pipe fitting more easily expand variation, and reach the effect of profile smoothness.
(2) by the mode of this step 105 high-pressure fluid moulding, can allow this main metal tube 2 and these pair metal tube 3 easier molding effects that reach, and make this pipe fitting thickness more even.
(3) by the collocation of this main metal tube 2 with this pair metal tube 3, can one-body moldedly go out to be equivalent to the various pipe fittings in the vehicle frame, quite galore variability be arranged, dark tool industry applications.
All quote in this application as a reference at all documents that the present invention mentions, just as each piece document is quoted separately as a reference.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after having read above-mentioned instruction content of the present invention, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (10)
1. the manufacture method of an integrated combined pipe fitting is characterized in that, comprises the following step:
(a): intercept a main metal tube, and at least one secondary metal tube;
(b): should insert in first mould by main metal tube, carry out the first one-step forming of this main metal tube in the mode of cold-working formula expansion-molding, make this main metal tube form a base segment, and at least one protrudes from the convex section of this base segment;
(c): should engage one another with this convex section by pair metal tube one end, and weld in the joint of this pair metal tube and this convex section; And
(d): this pipe fitting after will welding is inserted in second mould, carries out the final molding of this pipe fitting in the mode of high-pressure fluid moulding.
2. the manufacture method of integrated combined pipe fitting according to claim 1, it is characterized in that: pressure, punch forming in this step (b) is utilized first, recycling high-pressure fluid molding mode carries out the first one-step forming of this main metal tube, melts the downhand welding road after this step (c) has been welded again.
3. the manufacture method of integrated combined pipe fitting according to claim 2, it is characterized in that: this step (b) also comprises to be inserted this pair metal tube in the 3rd mould, carries out just one-step forming of this pair metal tube with interior pressure, stamping forming mode.
4. the manufacture method of integrated combined pipe fitting according to claim 3 is characterized in that: also comprise a step (e) that is positioned between this step (b) and this step (c): this convex section one end-grain cutting is disconnected to form an axis hole.
5. the manufacture method of integrated combined pipe fitting according to claim 1 is characterized in that: the welding method of this step (c) can be any of gas welding and arc welding.
6. the manufacture method of integrated combined pipe fitting according to claim 1, it is characterized in that: this main metal tube and the employed material of this pair metal tube are aluminium alloy.
7. the manufacture method of integrated combined pipe fitting according to claim 4, it is characterized in that: this convex section and this pair metal tube quantity are all two in this step (b), in this step (d) the aforementioned auxiliary metal tube is all blocked in contrast to an end of aforementioned convex section respectively, and this base segment one end pours into high-pressure fluid certainly, make this base segment be shaped to a head tube of extending along axis direction, aforementioned convex section and aforementioned auxiliary metal tube cooperatively interact and are shaped between this head tube two end opposite respectively along an approximate vertical and are away from upper Guan Yuyi lower pipe that this axis direction extends.
8. the manufacture method of integrated combined pipe fitting according to claim 4, it is characterized in that: this convex section and this pair metal tube quantity are all two in this step (b), in this step (d) the aforementioned auxiliary metal tube is all blocked in contrast to an end of aforementioned convex section respectively, and an end of this base segment pours into high-pressure fluid certainly, this base segment is extended along an axis direction, and aforementioned convex section and aforementioned auxiliary metal tube are cooperatively interacted be shaped to respectively and be roughly parallel to the structure that this axis direction extends, this base segment along one, aforementioned convex section matches with the aforementioned auxiliary metal tube and molds a front fork.
9. the manufacture method of integrated combined pipe fitting according to claim 4, it is characterized in that: this convex section and this pair metal tube quantity are all one in this step (b), should block in contrast to an end of this convex section by the pair metal tube in this step (d), and this base segment one end pours into high-pressure fluid certainly, make this base segment be shaped to a head tube of extending along axis direction, this convex section and this pair metal tube cooperatively interact and are shaped between this head tube two end opposite along an approximate vertical and are away from upper pipe that this axis direction extends.
10. the manufacture method of integrated combined pipe fitting according to claim 4, it is characterized in that: this convex section and this pair metal tube quantity are all one in this step (b), should block in contrast to an end of this convex section by the pair metal tube in this step (d), and this base segment one end pours into high-pressure fluid certainly, this base segment is extended along an axis direction, and this convex section and this pair metal tube are cooperatively interacted be shaped to along an approximate vertical and the structure of extending away from this axis direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102374585A CN102950421A (en) | 2011-08-18 | 2011-08-18 | Integrally-formed combined pipe fitting manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102374585A CN102950421A (en) | 2011-08-18 | 2011-08-18 | Integrally-formed combined pipe fitting manufacturing method |
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| CN102950421A true CN102950421A (en) | 2013-03-06 |
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| CN2011102374585A Pending CN102950421A (en) | 2011-08-18 | 2011-08-18 | Integrally-formed combined pipe fitting manufacturing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736276A (en) * | 2016-12-09 | 2017-05-31 | 青岛安装建设股份有限公司 | A kind of installation method of novel aluminum alloy cleaning piping |
| CN107097045A (en) * | 2017-04-25 | 2017-08-29 | 中国船舶重工集团公司第七二五研究所 | A kind of frock of metal saddle pipe fitting precise forming and the method for processing saddle |
| CN109590676A (en) * | 2018-11-02 | 2019-04-09 | 陈志城 | A kind of preparation process of novel hydraulic molding trolley |
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| TW200505607A (en) * | 2003-08-15 | 2005-02-16 | Kinesis Industry Co Ltd | Method for forming a bicycle metal working component and device for same |
| TWM301835U (en) * | 2006-06-29 | 2006-12-01 | Astro Engineering Co Ltd | Unity-frame component of a bicycle |
| DE202006016611U1 (en) * | 2006-10-30 | 2007-02-01 | Astro Engineering Co., Ltd. | Frame for a bicycle comprises a steering tube and at least one tube with a projecting pattern welded to the steering tube |
| TW200810854A (en) * | 2006-08-28 | 2008-03-01 | Kinesis Industry Co Ltd | Process for super plastic molding of bike frame tubing |
| US20080100029A1 (en) * | 2006-10-26 | 2008-05-01 | Astro Engineering Co., Ltd. | One-piece frame for a bicycle |
| CN201566779U (en) * | 2009-09-10 | 2010-09-01 | 杨天赏 | Integrally formed front fork of bicycle |
| TW201116441A (en) * | 2009-08-26 | 2011-05-16 | Specialized Bicycle Components | Bicycle frame with improved weld joint |
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2011
- 2011-08-18 CN CN2011102374585A patent/CN102950421A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200505607A (en) * | 2003-08-15 | 2005-02-16 | Kinesis Industry Co Ltd | Method for forming a bicycle metal working component and device for same |
| TWM301835U (en) * | 2006-06-29 | 2006-12-01 | Astro Engineering Co Ltd | Unity-frame component of a bicycle |
| TW200810854A (en) * | 2006-08-28 | 2008-03-01 | Kinesis Industry Co Ltd | Process for super plastic molding of bike frame tubing |
| US20080100029A1 (en) * | 2006-10-26 | 2008-05-01 | Astro Engineering Co., Ltd. | One-piece frame for a bicycle |
| DE202006016611U1 (en) * | 2006-10-30 | 2007-02-01 | Astro Engineering Co., Ltd. | Frame for a bicycle comprises a steering tube and at least one tube with a projecting pattern welded to the steering tube |
| TW201116441A (en) * | 2009-08-26 | 2011-05-16 | Specialized Bicycle Components | Bicycle frame with improved weld joint |
| CN201566779U (en) * | 2009-09-10 | 2010-09-01 | 杨天赏 | Integrally formed front fork of bicycle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106736276A (en) * | 2016-12-09 | 2017-05-31 | 青岛安装建设股份有限公司 | A kind of installation method of novel aluminum alloy cleaning piping |
| CN107097045A (en) * | 2017-04-25 | 2017-08-29 | 中国船舶重工集团公司第七二五研究所 | A kind of frock of metal saddle pipe fitting precise forming and the method for processing saddle |
| CN107097045B (en) * | 2017-04-25 | 2019-04-16 | 中国船舶重工集团公司第七二五研究所 | A kind of tooling of metal saddle pipe fitting precise forming and the method for processing saddle |
| CN109590676A (en) * | 2018-11-02 | 2019-04-09 | 陈志城 | A kind of preparation process of novel hydraulic molding trolley |
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Application publication date: 20130306 |