CN1613569A - Heat hydraulic inner shaping method and bicycle frames - Google Patents
Heat hydraulic inner shaping method and bicycle frames Download PDFInfo
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- CN1613569A CN1613569A CN 200410053189 CN200410053189A CN1613569A CN 1613569 A CN1613569 A CN 1613569A CN 200410053189 CN200410053189 CN 200410053189 CN 200410053189 A CN200410053189 A CN 200410053189A CN 1613569 A CN1613569 A CN 1613569A
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- pipe fitting
- fluid transfer
- moulding method
- pipe
- transfer moulding
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Abstract
An internally heating hydraulic technology for shaping the tube part of bicycle frame includes such steps as taking an Al-alloy tube with a predefined length and a hole, putting it in the cavity of a die, and filling high-pressure liquid in the tube via said hole while heating it for expanding it to needed shape.
Description
Technical field
The invention relates to a kind of pipe fitting, be meant intraluminal fluid transfer moulding method and bicycle frame pipe between a kind of integrated heat especially.
Background technology
Bicycle the safety and traveling comfort when driving except reinforcement, also more and more pay attention to for the aesthetic property of vehicle body, and the aesthetic property of vehicle body often depends on the design of moulding in the requirement of using.Yet, under being still now with the trend of metal tube as vehicle frame, above-mentioned pipe fitting is all for fear of existing welding manner, not only have the seam and the welding bead that influence aesthetic property, and joint and working position are more, increase mould and tooling cost, more because the more wayward formation of working position changes, and have moulding limited and do not have variational disappearance, quite do not meet the needs of marketability.
In order to improve the disappearance of above-mentioned bike metal pipe fitting in moulding, this case contriver is previous to be applied for and No. 021125554 " multi-axial all aluminium alloy bicycle frame pipe " patent of invention through checking and approving, it mainly is mode with shaped by fluid pressure, utilize by the hydraulic pressure of pipe fitting and the ductility of pipe fitting itself, pipe fitting is expanded outwardly and produce deformation.By this, be one in conjunction with several pipe fittings, and can not have seam in appearance, and have more variability and aesthetic property.
Yet, the inventor herein is as satisfying, still adhere to excelsior spirit, continuing to be engaged in relevant development research, thereby finding the pipe fitting of former invention, aspect " spreading rate " when shaped by fluid pressure, still have the space of lifting, because this, this case creator is constantly detailed to be thought funiculus and uses skilful intelligence, actively researched and developed with great concentration, the present invention's appearance must be arranged eventually.
Summary of the invention
Therefore, the present invention's purpose is promptly providing intraluminal fluid transfer moulding method and bicycle frame pipe between a kind of heat that can promote ductility.
So intraluminal fluid transfer moulding method and bicycle frame pipe comprise the following step between heat of the present invention: (a) the aluminum alloy pipe fitting of intercepting one predetermined length, this pipe fitting have around an axis and define a tube wall of boring a hole.(b) this pipe fitting is inserted in the nib of a mould.(c) in the mode of shaped by fluid pressure, highly pressurised liquid is injected in the perforation of this pipe fitting.(d) this pipe fitting is to be heated in the process that abovementioned steps is carried out, and can improve ductility, and under hydraulic action, expands outwardly and produce deformation with respect to this nib shape.
Effect of the present invention is the spreading rate that can promote this pipe fitting, makes this pipe fitting more smooth and easy and easy when expansion, and can reduce overhours.
Description of drawings
About addressing other technology contents, characteristics and effect before the present invention, in the detailed description of two preferred embodiments of following conjunction with figs., can clearly understand.
Fig. 1 is a diagram of circuit, and first preferred embodiment of intraluminal fluid transfer moulding method and bicycle frame pipe between the present invention's one heat is described;
Fig. 2 is a front elevation, illustrates that this first preferred embodiment winding becomes a vehicle frame;
Fig. 3 is a shaping schematic view, illustrates that this first preferred embodiment is one-body molded and is equivalent to a upper boom, a lower beam and a vehicle head tube of a vehicle frame;
Fig. 4 is a shaping schematic view, illustrate this first preferred embodiment be one-body molded and be equivalent to a vehicle frame one on the fork;
Fig. 5 is a shaping schematic view, illustrates that this first preferred embodiment is one-body molded and is equivalent to a lower fork of a vehicle frame;
Fig. 6 is a diagram of circuit, and second preferred embodiment of intraluminal fluid transfer moulding method and bicycle frame pipe between the present invention's one heat is described;
Fig. 7 is a front elevation, illustrates that this second preferred embodiment winding becomes a vehicle frame;
Fig. 8 is a shaping schematic view, illustrates that this second preferred embodiment is one-body molded and is equivalent to a vehicle head tube of a vehicle frame;
Fig. 9 is a shaping schematic view, illustrates that this second preferred embodiment is one-body molded and is equivalent to a vertical tube of a vehicle frame;
Figure 10 is a shaping schematic view, illustrates that this first preferred embodiment is one-body molded and is equivalent to the First Five-Year Plan siphunculus of a vehicle frame.
The specific embodiment
Consult Fig. 1, Fig. 2, Fig. 3, one first preferred embodiment of intraluminal fluid transfer moulding method comprises the following step between heat of the present invention:
(a) the aluminum alloy pipe fitting 1 of intercepting one predetermined length.This pipe fitting 1 employed aluminum alloy materials can be that Al-Mg-Sc, Al-Mg-Zr, Al-Mg-Li-Zr are wherein a kind of.This pipe fitting 1 has around an axis X and defines a perforation 11 tube wall 12.Then, scratch curved this pipe fitting 1 again, make this pipe fitting 1 form one first pipeline section 13, one second pipeline section 14, and angle is less than 90 degree and connect one the 3rd pipeline section 15 of this first, second pipeline section 13,14.
(b) this pipe fitting 1 is inserted in the nib 21 of a mould 2.
(c) in the mode of shaped by fluid pressure, highly pressurised liquid is injected in the perforation 11 of this pipe fitting 1.
(d) this pipe fitting 1 is to be heated in the process that abovementioned steps is carried out, and the mode of being heated can be that following three kinds of modes are wherein a kind of:
1. carrying out in step (a), mainly is directly this aluminum alloy pipe fitting 1 of scratching after curved to be carried out preheating, makes temperature after this pipe fitting 1 is heated between 200 ℃～500 ℃.
2. carrying out in step (b), mainly is to heat this mould 2 in advance, the pipe fitting 1 of inserting is heated, and the temperature after being heated is between 200 ℃～500 ℃.
3. carrying out in step (c), mainly is to heat this liquid in advance, make this pipe fitting 1 flow of liquid through the time be heated, and the temperature after being heated is between 200 ℃～500 ℃.
By this, the tube wall 12 that makes this pipe fitting 1 is after being heated, and ductility improves, and then promotes the spreading rate of this pipe fitting 1, and the tube wall 12 that makes this pipe fitting 1 is under hydraulic action, and is with respect to these nib 21 shapes, more smooth and easy and easily expand outwardly and produce deformation.
According to above-mentioned forming method, make this first pipeline section 13 form the pipe of going up that is equivalent to cycle frame, this second pipeline section 14 forms the following pipe that is equivalent to vehicle frame, and the 3rd pipeline section 15 forms the vehicle head tube that is equivalent to vehicle frame.
Ginseng Fig. 2, Fig. 4, the present invention also can utilize identical forming method, make one first pipeline section 31, one second pipeline section 32 of a pipe fitting 3 form two upper wishbones that are equivalent to fork on the vehicle frame one, and one the 3rd pipeline section 33 forms an adapter portion that is positioned between two upper wishbones.Ginseng Fig. 2, Fig. 5, or make one first pipeline section 41, one second pipeline section 42 of a pipe fitting 4 form two lower wishbones that are equivalent to vehicle frame one lower fork, and one the 3rd pipeline section 43 forms an adapter portion that is positioned between two lower wishbones.
Ginseng Fig. 2, by this, will above-mentioned integrated pipe fitting 1,3,4 respectively with one in pipe 51 and First Five-Year Plan siphunculus 52 weld the vehicle frame that just can winding becomes to finish, and can significantly reduce vehicle frame single-piece joint.
Ginseng Fig. 6, Fig. 7, Fig. 8 are the present invention's one second preferred embodiments, and itself and first preferred embodiment are roughly the same, and not existing together only is:
After intercepting the aluminum alloy pipe fitting 6 of a predetermined length, be directly this pipe fitting 6 to be inserted in the nib 21 of this mould 2, this pipe fitting 6 has one equally around an axis X and define a perforation 61 tube wall 62.By this, in highly pressurised liquid injects the perforation 61 of this pipe fitting 6, can utilize aforementioned three kinds of modes that this pipe fitting 6 is heated equally, promote the spreading rate of this tube wall 62, and can be under hydraulic action, the tube wall 62 that makes this pipe fitting 6 is with respect to these nib 21 shapes, and is more smooth and easy and easily expand outwardly and produce deformation, in these tube wall 62 one-body molded two joints 63,64 that protrusion is arranged, form the vehicle head tube that is equivalent to vehicle frame.
Ginseng Fig. 7, Fig. 9, the present invention also can utilize identical forming method, makes a pipe fitting 7 form a vertical tube that is equivalent to vehicle frame, or as Fig. 7, shown in Figure 10, makes a pipe fitting 8 form the First Five-Year Plan siphunculus that is equivalent to vehicle frame.
By this, need only be in advance at the joint periphery coating scolder of each pipe fitting 6,7,8, fork 94 and one lower fork 95 is socketed between the joint of above-mentioned pipe fitting 6,7,8 on 93, one with managing in a upper boom 91, the lower beam 92, respectively again, the vehicle frame that just can winding becomes to finish, and can not see having welding bead to exist in appearance just as one-body molded.
According to the above as can be known, intraluminal fluid transfer moulding method and bicycle frame pipe have following advantage and effect between the present invention's heat:
The present invention is heated pipe fitting, improving the ductility of this pipe fitting, and then promotes the spreading rate of this pipe fitting, makes this pipe fitting more smooth and easy and easily when expansion, and can reduce overhours.By this, the mode of traditional industry oil pressure moulding is used on the pipe fitting of bicycle aluminum alloy system, can significantly reduce the position of joint, make integral body of the present invention have more aesthetic property, and can reduce mould, tooling cost, and have the multifarious type variation that causes, highlight commodity competitiveness of the present invention, and can meet the demand of marketability.
The above person, only for the present invention's preferred embodiment, can not limit the scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and description of the invention content generally changes and modifies, and all should still belong in the scope that patent of the present invention contains.
Claims (12)
1. intraluminal fluid transfer moulding method between a heat is characterized by, and comprises the following step:
(a) the aluminum alloy pipe fitting of intercepting one predetermined length, this pipe fitting have around an axis and define a tube wall of boring a hole;
(b) this pipe fitting is inserted in the nib of a mould;
(c), highly pressurised liquid is injected in the perforation of this pipe fitting in the mode of shaped by fluid pressure;
(d) this pipe fitting is to be heated in the process that abovementioned steps is carried out, and can improve ductility, and under hydraulic action, expands outwardly and produce deformation with respect to this nib shape.
2. according to intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, the action that this pipe fitting is heated is to carry out in step (a), mainly is behind the aluminum alloy pipe fitting of intercepting predetermined length, directly this pipe fitting is carried out preheating.
3. according to intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, the action that this pipe fitting is heated is to carry out in step (b), mainly is to heat this mould in advance, and the pipe fitting of inserting is heated.
4. according to intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, the action that this pipe fitting is heated is to carry out in step (c), mainly is to heat this liquid in advance, make this pipe fitting flow of liquid through the time be heated.
5. according to intraluminal fluid transfer moulding method between the described heat of claim 1 or claim 2 or claim 3, it is characterized by, the temperature after this pipe fitting is heated is between 200 ℃～500 ℃.
6. according to intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, the employed aluminum alloy materials of this pipe fitting can be that Al-Mg-Sc, Al-Mg-Zr, Al-Mg-Li-Zr are wherein a kind of.
7. according to the made bicycle frame pipe of intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, this pipe fitting has at least more than one and is expanded outwardly by tube wall and produce deformation and the joint that extends, and these joints can be respectively and other pipe fitting socket.
8. according to the made bicycle frame pipe of intraluminal fluid transfer moulding method between the described heat of claim 7, it is characterized by, this pipe fitting can be that to form a vehicle head tube, First Five-Year Plan siphunculus and the vertical tube be equivalent to a vehicle frame wherein a kind of.
9. according to intraluminal fluid transfer moulding method between the described heat of claim 1, it is characterized by, more include a step (a1), this step (a1) is in that to carry out step (b) preceding, scratch curved this pipe fitting in advance, make this pipe fitting form one first pipeline section, one second pipeline section, and angle is less than 90 degree and connect one the 3rd pipeline section of this first, second pipeline section.
10. according to the made bicycle frame pipe of intraluminal fluid transfer moulding method between the described heat of claim 9, it is characterized by, this first, second, third pipeline section can form be equivalent to a vehicle frame one on manage, once the pipe and a vehicle head tube that is connected this upper and lower pipe.
11. according to the made bicycle frame pipe of intraluminal fluid transfer moulding method between the described heat of claim 9, it is characterized by, this first, second pipeline section can form two upper wishbones that are equivalent to a vehicle frame, and the 3rd pipeline section can form an adapter portion that is positioned between two upper wishbones.
12. according to the made bicycle frame pipe of intraluminal fluid transfer moulding method between the described heat of claim 9, it is characterized by, this second, second pipeline section can form two lower wishbones that are equivalent to a vehicle frame, and the 3rd pipeline section can form an adapter portion that is positioned between two lower wishbones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053189 CN1613569A (en) | 2004-07-28 | 2004-07-28 | Heat hydraulic inner shaping method and bicycle frames |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053189 CN1613569A (en) | 2004-07-28 | 2004-07-28 | Heat hydraulic inner shaping method and bicycle frames |
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| Publication Number | Publication Date |
|---|---|
| CN1613569A true CN1613569A (en) | 2005-05-11 |
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| CN 200410053189 Pending CN1613569A (en) | 2004-07-28 | 2004-07-28 | Heat hydraulic inner shaping method and bicycle frames |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372622C (en) * | 2005-10-25 | 2008-03-05 | 哈尔滨工业大学 | Thermal internal high pressure formation method for light alloy tube (or pipe) |
| CN100431733C (en) * | 2006-10-11 | 2008-11-12 | 梁雪华 | Hydraulic expansion forming process |
| CN101259503B (en) * | 2007-02-14 | 2010-06-16 | 通用汽车环球科技运作公司 | Apparatus for hole punching |
| CN102083565B (en) * | 2008-07-04 | 2013-06-05 | 新日铁住金株式会社 | Hydroforming method and hydroformed component |
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
-
2004
- 2004-07-28 CN CN 200410053189 patent/CN1613569A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372622C (en) * | 2005-10-25 | 2008-03-05 | 哈尔滨工业大学 | Thermal internal high pressure formation method for light alloy tube (or pipe) |
| CN100431733C (en) * | 2006-10-11 | 2008-11-12 | 梁雪华 | Hydraulic expansion forming process |
| CN101259503B (en) * | 2007-02-14 | 2010-06-16 | 通用汽车环球科技运作公司 | Apparatus for hole punching |
| CN102083565B (en) * | 2008-07-04 | 2013-06-05 | 新日铁住金株式会社 | Hydroforming method and hydroformed component |
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
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