CN202591344U - Internal high-pressure forming die - Google Patents
Internal high-pressure forming die Download PDFInfo
- Publication number
- CN202591344U CN202591344U CN 201220120861 CN201220120861U CN202591344U CN 202591344 U CN202591344 U CN 202591344U CN 201220120861 CN201220120861 CN 201220120861 CN 201220120861 U CN201220120861 U CN 201220120861U CN 202591344 U CN202591344 U CN 202591344U
- Authority
- CN
- China
- Prior art keywords
- pressure forming
- internal high
- pipe fitting
- pipe piece
- high pressure
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 210000003127 knee Anatomy 0.000 claims description 19
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000037303 wrinkles Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The utility model provides an internal high-pressure forming die. A die cavity (1) of the die is matched with a formed pipe piece in shape, and grooves (11) are formed at positions corresponding to bent parts of the pipe piece on the inner wall of the die cavity (1). When the internal high-pressure forming die is used for manufacturing the pipe piece, the grooves (11) are formed at the positions corresponding to the bent parts of the pipe piece on the inner wall of the die cavity (1), bulges are formed at the bent parts of the formed pipe piece, and the arc lengths at the bent parts of the pipe piece are increased through the bulges, so that yield points on the bent parts are raised, and phenomena of cracking, wrinkling and resilience at the bent parts of the pipe piece due to non-uniform stress of the pipe piece and incomplete plastic deformation are reduced.
Description
Technical field
The utility model relates to the internal high pressure forming technical field, more particularly, relates to a kind of internal high pressure forming mould.
Background technology
Internal high pressure forming also makes hydroforming or fluid power be shaped, be a kind of liquid that utilizes as shaping medium, flowing through control internal pressure and material reaches the material forming technology of shaping hollow part purpose.
The principle of internal high pressure forming is to be pressed into mold cavity to pipe through internal pressurization and axial afterburning feed supplement to make it be configured as needed workpiece.For axis is the part of curve, need be pre-bent to pipe near part shape, then press molding.
At present; When utilizing above-mentioned internal high pressure forming technology to make pipe fitting, because pipe fitting all has arc or curve shape basically, and because of the difference of part machinery performance requirement; Pipe fitting material, thickness everywhere is all variant, so the bending force that the pipe fitting knee needs also has nothing in common with each other.Pipe is being carried out in the process of internal high pressure forming,, and then causing it not to be out of shape so that the pipe fitting knee cracking often occurs, goes out wrinkle and rebound phenomenon by perfect plasticity because of unbalance stress appears in its two-way function meeting that receives axial feed power and mold clamping force.Above phenomenon not only influences part precision, does not also reach the requirement of use.
In sum; How a kind of internal high pressure forming mould is provided; When utilizing this internal high pressure forming mould to make pipe fitting to be implemented in; Minimizing because of the pipe fitting unbalance stress can not perfect plasticity the pipe fitting knee cracking that causes of distortion, go out the phenomenon of wrinkle and resilience, be the technical problem that present those skilled in the art need to be resolved hurrily.
The utility model content
In view of this; The purpose of the utility model is to provide a kind of internal high pressure forming mould; When utilizing this internal high pressure forming mould to make pipe fitting, reduce because of pipe fitting knee cracking that the pipe fitting unbalance stress can not the perfect plasticity distortion causes, go out the phenomenon of wrinkle and resilience to be implemented in.
In order to achieve the above object, the utility model provides following technical scheme:
A kind of internal high pressure forming mould, the die cavity of this mould be shaped after pipe shape match, be provided with groove in pairing position, the knee of said pipe fitting on the inwall of said die cavity.
Preferably, in the above-mentioned internal high pressure forming mould, the inwall of said groove is an arc surface.
Preferably, in the above-mentioned internal high pressure forming mould, said groove is an oval-shaped groove.
In the internal high pressure forming mould that the utility model provides, its die cavity be shaped after pipe shape match, be provided with groove in pairing position, the knee of said pipe fitting on the inwall of said die cavity.
When the internal high pressure forming mould that utilizes the utility model to provide is made pipe fitting; Owing to be provided with groove in pairing position, the knee of said pipe fitting on the inwall of said die cavity; So the knee of the said pipe fitting after being shaped all has convexity; This convexity has increased the arc length in the knee of pipe fitting, and then has improved the yield point at this place, thus reduced because of the pipe fitting unbalance stress can not perfect plasticity the pipe fitting knee cracking that causes of distortion, go out the phenomenon of wrinkle and resilience.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the internal high pressure forming mould that provides of the utility model embodiment;
Fig. 2 is the structure enlarged drawing of A part among Fig. 1.
The specific embodiment
The utility model embodiment provides a kind of internal high pressure forming mould, when utilizing this internal high pressure forming mould to make pipe fitting to be implemented in, reduces because of pipe fitting knee cracking that the pipe fitting unbalance stress can not the perfect plasticity distortion causes, goes out the phenomenon of wrinkle and resilience.
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to accompanying drawing 1-2, Fig. 1 is the structural representation of the internal high pressure forming mould that provides of the utility model embodiment; Fig. 2 is the structure enlarged drawing of A part among Fig. 1.
In the internal high pressure forming mould that the utility model embodiment provides, its die cavity 1 be shaped after pipe shape match, be provided with groove 11 in pairing position, the knee of pipe fitting on the inwall of die cavity 1.
When the internal high pressure forming mould that utilizes the utility model embodiment to provide is made pipe fitting; Owing to be provided with groove 11 in pairing position, the knee of pipe fitting on the inwall of die cavity 1; So the knee of the pipe fitting after being shaped all has convexity; This convexity has increased the arc length in the knee of pipe fitting, and then has improved the yield point at this place, thus reduced because of the pipe fitting unbalance stress can not perfect plasticity the pipe fitting knee cracking that causes of distortion, go out the phenomenon of wrinkle and resilience.
Preferably, in the internal high pressure forming mould that the foregoing description provides, the inwall of groove 11 is an arc surface; Make pipe fitting interior when being pressed into shape, the stressed size of the inwall in its knee is along arc surface transition equably, and then improved part precision, reached the requirement of using.
Concrete, in the internal high pressure forming mould that the foregoing description provides, groove 11 is an oval-shaped groove; This groove can also be the groove with arc surface inwall of other shapes, and the perhaps groove of other non-arc surface inwalls is as long as can increase the arc length in pipe fitting knee.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. internal high pressure forming mould, the die cavity of this mould (1) be shaped after pipe shape match, it is characterized in that, be provided with groove (11) in pairing position, the knee of said pipe fitting on the inwall of said die cavity (1).
2. internal high pressure forming mould according to claim 1 is characterized in that, the inwall of said groove (11) is an arc surface.
3. internal high pressure forming mould according to claim 2 is characterized in that, said groove (11) is an oval-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120861 CN202591344U (en) | 2012-03-27 | 2012-03-27 | Internal high-pressure forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120861 CN202591344U (en) | 2012-03-27 | 2012-03-27 | Internal high-pressure forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202591344U true CN202591344U (en) | 2012-12-12 |
Family
ID=47308927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120861 Expired - Lifetime CN202591344U (en) | 2012-03-27 | 2012-03-27 | Internal high-pressure forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202591344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615166A (en) * | 2012-03-27 | 2012-08-01 | 吉林省元隆达工装设备有限公司 | Internal high pressure forming die |
-
2012
- 2012-03-27 CN CN 201220120861 patent/CN202591344U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102615166A (en) * | 2012-03-27 | 2012-08-01 | 吉林省元隆达工装设备有限公司 | Internal high pressure forming die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171221 Address after: Zone 136600 Liaoyuan City, Jilin Province Industrial Dongliao County Patentee after: Jilin Province Xuan frame Co., Ltd. Address before: Liaoyuan City, Jilin province 136600 Baiquan Town Dongliao County Lian Chang village five groups Patentee before: Jilin Yuanlongda Tooling Equipment Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
|
| CX01 | Expiry of patent term |