CN204448952U - Hydraulic pressure hollow pipe fitting springback control device - Google Patents
Hydraulic pressure hollow pipe fitting springback control device Download PDFInfo
- Publication number
- CN204448952U CN204448952U CN201520050166.4U CN201520050166U CN204448952U CN 204448952 U CN204448952 U CN 204448952U CN 201520050166 U CN201520050166 U CN 201520050166U CN 204448952 U CN204448952 U CN 204448952U
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- China
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- cavity section
- mold cavity
- pipe fitting
- control device
- hydraulic pressure
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Abstract
The utility model relates to pipe fitting part and manufactures field, particularly relates to a kind of tubular hydraulic formation of parts processing mold.A kind of hydraulic pressure hollow pipe fitting springback control device, by several independently mold cavity section combine, be hinged and connected by rotating shaft between mold cavity section described in adjacent two, the axle center of described rotating shaft is pivot corresponding to institute's processing parts bending place, and described mold cavity section is provided with resilience governor motion.The utility model hydraulic pressure hollow pipe fitting springback control device makes mould cross the angle of crook can according to actual processing free adjustment, so just can eliminate the resilience in pipe fitting part forming process, make the part after preform can put into hydraulic forming mold smoothly, reduce hydraulic forming mold wearing and tearing, promote the dimensional accuracy of hydroformed part, the flexibility of this device is strong, simple to operate, advantage easy to adjust, has boundless application prospect.
Description
Technical field
The utility model relates to pipe fitting part and manufactures field, particularly relates to a kind of tubular hydraulic formation of parts processing mold.
Background technology
At aircraft, spacecraft and automotive field, weight reduction is to save material and operating energy is one of trend of Developing Trends of Modern Manufacturing Technology, a kind of advanced manufacturing technology manufacturing hollow light body structure part that hydroforming develops just in this context.For most hydro-formed tubular part, all will successively through straight tube bending, preform, hydroforming, obtains qualified part after cutting action.In the process, for the non-directional part of some axis, first need to carry out bend pipe, then carry out preform to bend pipe, the shape making part deformation become roughly the same with hydroformed part shape, then puts into hydraulic forming mold and carries out hydroforming.In the process, when part takes out from piece pre-forming die die cavity, due to the inhomogeneities of each region deformation of part, can there is certain resilience in part, thus cause the part after preform cannot put into hydraulic forming mold die cavity.
The factors such as the springback capacity after preform moves towards to axis of workpiece, part section shape, accessory size size are relevant, and part material therefor intensity is higher, and after preform, part springback capacity is larger.If the springback capacity of part after accurately can not controlling preform, element precision after preform can be affected on the one hand, be difficult to ensure accessory size after preform, affect the location of preform part in hydraulic forming mold, after causing hydroforming, part resilience increases, parts size precision cannot reach designing requirement, on the other hand, hydraulic forming mold die cavity differs less with piece pre-forming die die cavity size, difference is generally at 1-2mm, and for subframe class hydroformed part, resilience in performing process may more than 5 ~ 10mm, therefore, if the resilience in performing process can not be eliminated, part after preform is put into hydraulic forming mold by force, greatly will accelerate hydraulic forming mold wearing and tearing, reduce die life rapidly.
About springback control, many employing Compensation Design methods, before Mould Machining, utilized computer CAE simulating analysis, first roughly doped the springback capacity after part forming, and follow-up springback capacity was compensated in the process of Design of Dies in the past.As shown in Figure 1, for the shape hydroformed part with bent angle, after being shaped, part all can produce resilience around bent angle center 5, this flexural center is referred to as pivot in a mold, when designing mould as shown in Figure 2, being out of shape by designing cross contrary with actual rebound direction in a mold, allowing part produce bending, after part takes out from mould, the angle utilizing part excessively to bend is to compensate the spring back angle α of part.In reality, owing to often there is multiple angle of bend in part, the springback calculation of combination bent angle has modeling period long, trend of rebound prediction difficulty, the shortcomings such as result low precision, and once calculate according to after result designing mould, follow-uply cannot to adjust according to actual forming results, therefore the product quality tool of machining high-precision is had a certain impact.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of hydraulic pressure hollow pipe fitting springback control device, the mistake crook angle of this mould can according to actual processing free adjustment, so just can eliminate the resilience in pipe fitting part forming process, the precision controlling resilience can not be subject to design-calculated interference in early stage, eliminates design error.
The utility model is achieved in that a kind of hydraulic pressure hollow pipe fitting springback control device, by several independently mold cavity section combine, be hinged and connected by rotating shaft between mold cavity section described in adjacent two, the axle center of described rotating shaft is pivot corresponding to institute's processing parts bending place, and described mold cavity section is provided with resilience governor motion.
Described mold cavity section has three sections, and three section die die cavity sections splice rear formation two bending in the same way in turn, and described resilience governor motion is arranged between the mold cavity section of both sides.
Described resilience governor motion comprises an adjusting screw(rod) and a pair adjusting nut, mold cavity section described in a pair that is positioned at both sides is provided with through hole, adjusting screw(rod) is erected on both sides die cavity section a pair through hole, and adjusting nut described in a pair is tightened on the two ends of adjusting screw(rod).
Described mold cavity section is made up of multiple insert, and described insert is arranged on base plate, and base plate freely rotates around pivot, described base plate is provided with the gathering sill of circular arc, and the center of circle of described gathering sill is pivot.
The utility model hydraulic pressure hollow pipe fitting springback control device makes mould cross the angle of crook can according to actual processing free adjustment, so just can eliminate the resilience in pipe fitting part forming process, make the part after preform can put into hydraulic forming mold smoothly, reduce hydraulic forming mold wearing and tearing, promote the dimensional accuracy of hydroformed part, the flexibility of this device is strong, simple to operate, advantage easy to adjust, has boundless application prospect.
Accompanying drawing explanation
Fig. 1 is existing part to be processed schematic diagram;
Fig. 2 is part to be processed resilience schematic diagram;
Fig. 3 is the structural representation of the utility model hydraulic pressure hollow pipe fitting springback control device;
Fig. 4 is the scheme of installation of resilience governor motion in the utility model embodiment;
Fig. 5 is the scheme of installation of insert in the utility model.
In figure: 1 mold cavity section, 2 rotating shafts, 3 resilience governor motions, 4 inserts, 5 bent angle centers, 31 adjusting screw(rod)s, 32 adjusting nuts, 41 gathering sills.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model statement.
Embodiment 1
As shown in Figure 3, a kind of hydraulic pressure hollow pipe fitting springback control device, by several independently mold cavity section 1 combine, be hinged and connected by rotating shaft 2 between mold cavity section 1 described in adjacent two, the axle center of described rotating shaft 2 is pivot corresponding to institute's processing parts bending place, and described mold cavity section 1 is provided with resilience governor motion 3.
In the present embodiment, described mold cavity section 1 has three sections, and three section die die cavity sections 1 form two bendings in the same way after splicing in turn, and described resilience governor motion 3 is arranged between the mold cavity section 1 of both sides.
In order to match with the three stage structure in the present embodiment, be convenient to the adjustment of bending angle, as shown in Figure 4, described resilience governor motion 3 comprises an adjusting screw(rod) 31 and a pair adjusting nut 32, mold cavity section 1 described in a pair that is positioned at both sides is provided with through hole, adjusting screw(rod) 31 is erected on both sides die cavity section a pair through hole, described in a pair, adjusting nut 32 is tightened on the two ends of adjusting screw(rod) 31, by rotating adjusting nut 32, under the effect of screwing force, the free end of the mold cavity section of both sides will move along adjustment adjusting screw(rod) 31, achieve the adjustment of bending place being crossed to bending angle, achieve and the accurate later stage of resilience is controlled.
As shown in Figure 5, sometimes the pipe length because of processing is longer, mold cavity section 1 can be made up of multiple insert 4, skew just may be there is in the insert 4 away from pivot in adjustment process, therefore in the present embodiment in order to ensure the repeatability of control accuracy and adjustment, described mold cavity section 1 is made up of multiple insert 4, described insert 4 is arranged on base plate, base plate freely rotates around pivot, described base plate is provided with the gathering sill 41 of circular arc, the center of circle of described gathering sill 41 is pivot.
Claims (4)
1. a hydraulic pressure hollow pipe fitting springback control device, it is characterized in that: by several independently mold cavity section (1) combine, be hinged and connected by rotating shaft (2) between mold cavity section (1) described in adjacent two, the axle center of described rotating shaft (2) is pivot corresponding to institute's processing parts bending place, and described mold cavity section (1) is provided with resilience governor motion (3).
2. hydraulic pressure hollow pipe fitting springback control device as claimed in claim 1, it is characterized in that: described mold cavity section (1) has three sections, three section die die cavity sections (1) form two bendings in the same way after splicing in turn, described resilience governor motion (3) be arranged on be positioned at both sides mold cavity section (1) between.
3. hydraulic pressure hollow pipe fitting springback control device as claimed in claim 2, it is characterized in that: described resilience governor motion (3) comprises an adjusting screw(rod) (31) and a pair adjusting nut (32), mold cavity section (1) described in a pair that is positioned at both sides is provided with through hole, adjusting screw(rod) (31) is erected on both sides die cavity section a pair through hole, and adjusting nut described in a pair (32) is tightened on the two ends of adjusting screw(rod) (31).
4. the hydraulic pressure hollow pipe fitting springback control device as described in a claim any in claim 1 ~ 3, it is characterized in that: described mold cavity section (1) is made up of multiple insert (4), described insert (4) is arranged on base plate, base plate freely rotates around pivot, described base plate is provided with the gathering sill (41) of circular arc, the center of circle of described gathering sill (41) is pivot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050166.4U CN204448952U (en) | 2015-01-26 | 2015-01-26 | Hydraulic pressure hollow pipe fitting springback control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520050166.4U CN204448952U (en) | 2015-01-26 | 2015-01-26 | Hydraulic pressure hollow pipe fitting springback control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204448952U true CN204448952U (en) | 2015-07-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520050166.4U Withdrawn - After Issue CN204448952U (en) | 2015-01-26 | 2015-01-26 | Hydraulic pressure hollow pipe fitting springback control device |
Country Status (1)
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| CN (1) | CN204448952U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109024A (en) * | 2015-09-15 | 2015-12-02 | 沈阳飞机工业（集团）有限公司 | Hot sizing method of multi-curvature thin-wall composite parts |
| CN105751532A (en) * | 2016-05-06 | 2016-07-13 | 江西昌河航空工业有限公司 | Composite shaping springback angle quick adjusting device and method |
| CN105880332A (en) * | 2015-01-26 | 2016-08-24 | 上海宝钢高新技术零部件有限公司 | Hydraulic hollow tube springback control method and device |
-
2015
- 2015-01-26 CN CN201520050166.4U patent/CN204448952U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105880332A (en) * | 2015-01-26 | 2016-08-24 | 上海宝钢高新技术零部件有限公司 | Hydraulic hollow tube springback control method and device |
| CN105109024A (en) * | 2015-09-15 | 2015-12-02 | 沈阳飞机工业（集团）有限公司 | Hot sizing method of multi-curvature thin-wall composite parts |
| CN105751532A (en) * | 2016-05-06 | 2016-07-13 | 江西昌河航空工业有限公司 | Composite shaping springback angle quick adjusting device and method |
| CN105751532B (en) * | 2016-05-06 | 2019-03-05 | 江西昌河航空工业有限公司 | A kind of composite formed spring back angle high-speed adjustment device and method of adjustment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20180522 |