CN102319987A - Bicycle handlebar forming method and special die - Google Patents
Bicycle handlebar forming method and special die Download PDFInfo
- Publication number
- CN102319987A CN102319987A CN201110256998A CN201110256998A CN102319987A CN 102319987 A CN102319987 A CN 102319987A CN 201110256998 A CN201110256998 A CN 201110256998A CN 201110256998 A CN201110256998 A CN 201110256998A CN 102319987 A CN102319987 A CN 102319987A
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- China
- Prior art keywords
- aluminum pipe
- pipe section
- section bar
- mould
- pipe profile
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- 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.)
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Abstract
The invention discloses a bicycle handlebar forming method for treating an aluminum pipe profile sequentially by the following steps of: 1) annealing the aluminum pipe profile; 2) heating and saponifying the aluminum pipe profile; 3) covering the aluminum pipe profile on a core shaft die; 4) performing fine extracting and cold drawing treatment on the aluminum pipe profile, wherein the temperature of the fine extracting and cold drawing treatment is omitted; 5) reducing two ends of the aluminum pipe profile through a pipe reduction die; 6) cutting the aluminum pipe profile to obtain the required length; and 7) bending the aluminum pipe profile through a pipe bending die, and thus obtaining a handlebar finished product. The reducing core shaft die is used in the forming process, and the pipe wall of the formed bicycle handlebar has different thickness, namely the pipe wall is thick at the high stress position and thin in the low stress position, so that the production cost is reduced at the same time of ensuring the original strength of the handlebar.
Description
Technical field
The present invention relates to the bicycle field, concrete relate to a kind of bicycle handle bar.
Background technology
Known, the pipe thickness of existing integrated bicycle handle bar is the same, yet through putting into practice, discovering; The stressed of the diverse location of handlebar is different, and in the little place of stress point, the tube wall of handlebar can be thinner slightly; Need be thicker slightly at stressed bigger local tube wall, and existing handlebar is lumped together, otherwise tube wall is too thick; Increased the weight of handlebar and the use of aluminium, or tube wall is thin excessively, has reduced the working strength of handlebar.
Summary of the invention
For overcoming the problems of the prior art, the object of the present invention is to provide a kind of bicycle handle bar forming method, and the particular manufacturing craft that in forming process, uses; Through this forming method, make that the thickness of pipe wall book of bicycle handle bar of moulding is different, promptly; Thicker at stressed bigger local tube wall; At stressed less local tube wall than book, thereby when guaranteeing the original intensity of handlebar, reduced production cost.
In order to solve the problems of the technologies described above, realize above-mentioned purpose, the present invention has adopted following technical scheme:
A kind of bicycle handle bar forming method is characterized in that, successively an aluminum pipe section bar is carried out following treatment step:
Step 1) is carried out annealing in process to said aluminum pipe section bar;
Step 2) said aluminum pipe section bar being heated saponification handles;
Step 3) advances to be inserted in a mandrel mould at said aluminum pipe section bar;
Step 4) to said aluminum pipe section bar carry out that essence is taken out, cold-drawn handles, said essence is taken out, the cold-drawn treatment temperature does;
Step 5) is carried out the draw through draw mould to the two ends of said aluminum pipe section bar;
Step 6) cuts said aluminum pipe section bar, obtains required length;
Step 7) is carried out bend pipe through bending die to said aluminum pipe section bar, makes the handlebar finished product.
A kind of mandrel mould; Comprise a mould handle; Said mould handle is connected with a die ontology, and said die ontology comprises the left cylinder that sets gradually, middle cylinder and right cylinder, and it is big that the radius of said left cylinder and right cylinder becomes from inside to outside gradually; Bigger in the middle of the radius of cylinder in the middle of said, two ends reduce gradually.
Compared with prior art the present invention has the following advantages:
In the forming process of the present invention, the practical mandrel mould of reducing makes that the thickness of pipe wall book of bicycle handle bar of moulding is different; That is, thicker at stressed bigger local tube wall, at stressed less local tube wall than book; Thereby when guaranteeing the original intensity of handlebar, reduced producing instinct.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. specify as after.The specific embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Fig. 1 is the structural representation of mandrel mould of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is further explained.
Embodiment 1:
A kind of bicycle handle bar forming method is characterized in that, successively an aluminum pipe section bar is carried out following treatment step:
Step 1) is carried out annealing in process to said aluminum pipe section bar;
Step 2) said aluminum pipe section bar being heated saponification handles;
Step 3) advances to be inserted in a mandrel mould at said aluminum pipe section bar;
Step 4) to said aluminum pipe section bar carry out that essence is taken out, cold-drawn handles, said essence is taken out, the cold-drawn treatment temperature does;
Step 5) is carried out the draw through draw mould to the two ends of said aluminum pipe section bar;
Step 6) cuts said aluminum pipe section bar, obtains required length;
Step 7) is carried out bend pipe through bending die to said aluminum pipe section bar, makes the handlebar finished product.
Embodiment 2:
Referring to shown in Figure 1; A kind of mandrel mould comprises a mould handle 1, and said mould handle 1 is connected with a die ontology 2; Said die ontology 2 comprises left cylinder 201, middle cylinder 202 and the right cylinder 203 that sets gradually; It is big that the radius of said left cylinder 201 and right cylinder 203 becomes from inside to outside gradually, and bigger in the middle of the radius of said middle cylinder 202, two ends reduce gradually.
The foregoing description just is to let the one of ordinary skilled in the art can understand content of the present invention and enforcement according to this in order technical conceive of the present invention and characteristics to be described, to be its objective is, can not limit protection scope of the present invention with this.The variation or the modification of every equivalence that the essence of content has been done according to the present invention all should be encompassed in protection scope of the present invention.
Claims (2)
1. bicycle handle bar's forming method is characterized in that, successively an aluminum pipe section bar is carried out following treatment step:
Step 1) is carried out annealing in process to said aluminum pipe section bar;
Step 2) said aluminum pipe section bar being heated saponification handles;
Step 3) advances to be inserted in a mandrel mould at said aluminum pipe section bar;
Step 4) to said aluminum pipe section bar carry out that essence is taken out, cold-drawn handles, said essence is taken out, the cold-drawn treatment temperature does;
Step 5) is carried out the draw through draw mould to the two ends of said aluminum pipe section bar;
Step 6) cuts said aluminum pipe section bar, obtains required length;
Step 7) is carried out bend pipe through bending die to said aluminum pipe section bar, makes the handlebar finished product.
2. mandrel mould that is exclusively used in the described bicycle handle bar of claim 1 forming method; Comprise a mould handle (1); It is characterized in that: said mould handle (1) is connected with a die ontology (2); Said die ontology (2) comprises the left cylinder (201) that sets gradually, middle cylinder (202) and right cylinder (203); It is big that the radius of said left cylinder (201) and right cylinder (203) becomes from inside to outside gradually, and bigger in the middle of the radius of said middle cylinder (202), two ends reduce gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256998A CN102319987A (en) | 2011-09-02 | 2011-09-02 | Bicycle handlebar forming method and special die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110256998A CN102319987A (en) | 2011-09-02 | 2011-09-02 | Bicycle handlebar forming method and special die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102319987A true CN102319987A (en) | 2012-01-18 |
Family
ID=45447889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110256998A Pending CN102319987A (en) | 2011-09-02 | 2011-09-02 | Bicycle handlebar forming method and special die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102319987A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787785A (en) * | 2018-05-28 | 2018-11-13 | 深圳市汉鸿欣精密科技有限公司 | A kind of bicycle materials in the tube and its manufacturing method |
| CN113319542A (en) * | 2021-07-13 | 2021-08-31 | 海安金隆金属科技有限公司 | Manufacturing method of mountain bike handlebar |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084788A (en) * | 1992-09-28 | 1994-04-06 | 西北有色金属研究院 | The manufacture method of two-direction inner-diameter changeable pipe material |
| CN1120475A (en) * | 1995-08-22 | 1996-04-17 | 宝山钢铁(集团)公司 | Technique for continuously drawing pipe using long rod rolling mould |
| TW331531B (en) * | 1994-04-14 | 1998-05-11 | Sumitomo Metal Ind | The bright annealing type stainless pipe and its manufacturing method by cold-pulling out pipe from pulling & plug die, and proceeding bright heat treatment to produce BA stainless pipe |
| US20070062241A1 (en) * | 2005-08-25 | 2007-03-22 | James Main | Unitary rear axle housing and method for manufacturing same |
| CN200945911Y (en) * | 2006-07-31 | 2007-09-12 | 宝鸡欧亚化工设备制造厂 | Titanium alloy radius-variable pipe |
| CN202224521U (en) * | 2011-09-02 | 2012-05-23 | 昆山市友森精密机械有限公司 | Special mould for moulding handlebar of bicycle |
-
2011
- 2011-09-02 CN CN201110256998A patent/CN102319987A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084788A (en) * | 1992-09-28 | 1994-04-06 | 西北有色金属研究院 | The manufacture method of two-direction inner-diameter changeable pipe material |
| TW331531B (en) * | 1994-04-14 | 1998-05-11 | Sumitomo Metal Ind | The bright annealing type stainless pipe and its manufacturing method by cold-pulling out pipe from pulling & plug die, and proceeding bright heat treatment to produce BA stainless pipe |
| CN1120475A (en) * | 1995-08-22 | 1996-04-17 | 宝山钢铁(集团)公司 | Technique for continuously drawing pipe using long rod rolling mould |
| US20070062241A1 (en) * | 2005-08-25 | 2007-03-22 | James Main | Unitary rear axle housing and method for manufacturing same |
| CN200945911Y (en) * | 2006-07-31 | 2007-09-12 | 宝鸡欧亚化工设备制造厂 | Titanium alloy radius-variable pipe |
| CN202224521U (en) * | 2011-09-02 | 2012-05-23 | 昆山市友森精密机械有限公司 | Special mould for moulding handlebar of bicycle |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108787785A (en) * | 2018-05-28 | 2018-11-13 | 深圳市汉鸿欣精密科技有限公司 | A kind of bicycle materials in the tube and its manufacturing method |
| CN113319542A (en) * | 2021-07-13 | 2021-08-31 | 海安金隆金属科技有限公司 | Manufacturing method of mountain bike handlebar |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120118 |