CN204276596U - A kind of plastic constraint component for bending thin-wall section - Google Patents
A kind of plastic constraint component for bending thin-wall section Download PDFInfo
- Publication number
- CN204276596U CN204276596U CN201420542344.0U CN201420542344U CN204276596U CN 204276596 U CN204276596 U CN 204276596U CN 201420542344 U CN201420542344 U CN 201420542344U CN 204276596 U CN204276596 U CN 204276596U
- Authority
- CN
- China
- Prior art keywords
- section
- section bar
- plastic
- plastic constraint
- member bodies
- 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 - Fee Related
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
For a plastic constraint component for bending thin-wall section, plastic constraint member bodies is made up of plastic material, can realize three-dimensional bending; Described plastic constraint member bodies inserts the inside of closed cross-section section bar or semiclosed cross section section bar, or open abnormal-shaped section bar entirety is surrounded, thus the surface of constraint closed cross-section section bar, semiclosed cross section section bar or open abnormal-shaped section bar, make section bar keep excellent surface quality when drastic deformation.Plastic constraint element structure of the present utility model is simple, and be easy to install and use, the scope of application is wide.
Description
Technical field
The utility model relates to a kind of plastic constraint component, particularly relates to a kind of plastic constraint component for stretch bending or press-bending thin-wall section.
Background technology
In automotive light weight technology evolution, the application of metalwork, particularly magnadure part that thin-wall section manufactures gets more and more.This kind of metalwork is because of complicated with the assembly relation of other part, and size and the accuracy of form and position require very high, and these characteristics, the manufacturing equipment determining thin-wall section metalwork must have high reliability and economy.The metalwork that some thin-wall section manufactures or the A level face component of automobile are very high to the surface quality requirements of brake forming.Meanwhile, the metalwork that bending thin-wall section is made also extensively adopts in the industry such as track train and high-speed railway passenger.
But thin-wall section is under the substantial load of the bending forming such as stretch bending or press-bending, the effect of Tensile stress or extrusion stress, be out of shape uneven, the gross distortion caving in or protrude can be there is in cross section, cause the longitudinally surface of the section bar after stretch wrap forming,, usually there is recessed or epirelief in particularly curved interior face.This major defect in shape of bending forming component, seriously limits the range of application of thin-wall section.
In order to solve the gross distortion problem that thin-wall section occurs in brake forming process middle section to cave in or protrude, Chinese patent document CN103240311A discloses a kind of flexible plug for stretch bending thin wall hollow section bar, but this mandrel structure comparatively complicated applications is not too convenient, in addition can only at a plane inner bending, hyperboloid can not be formed bend, that is three-dimensional bending, limit the range of application of thin-wall section.
The utility model provides a kind of plastic constraint component, successfully solve the problem of the shaping reliability of hyperboloid spares bend and economy, be applicable to manufacture hollow structure part in enormous quantities, through facts have proved the thin-wall section adopting this plastic constraint member bends in a large number, surface quality is good, production process high efficient and reliable.
Summary of the invention
The purpose of this utility model there is provided a kind of plastic constraint component that can realize thin-wall section three-dimensional bending.In order to reach this object, the utility model have employed following technical scheme.
For a plastic constraint component for bending thin-wall section, it is characterized in that: plastic constraint member bodies is made up of plastic material, can three-dimensional bending be realized; Described plastic constraint member bodies inserts the inside of closed cross-section section bar or semiclosed cross section section bar, or open abnormal-shaped section bar entirety is surrounded, thus the surface of constraint closed cross-section section bar, semiclosed cross section section bar or open abnormal-shaped section bar, make section bar keep excellent surface quality when drastic deformation.
Preferably, plastic constraint member bodies is made up of nylon 6, monomer cast nylon or polyurethane.
Preferably, plastic constraint member bodies is provided with and allows dead slot, to ensure that plastic constraint member bodies significantly can bend in a plane.
Preferably, this plastic constraint component also comprises backing metal, and this backing metal and plastic constraint member bodies are connected by screw, and backing metal is also provided with drawing groove.Backing metal is made up of common straightcarbon steel, and through normalizing heat treatment, it has drawing groove.
Preferably, the plastic constraint member bodies that is designed and sized to of plastic constraint member bodies is inserted section bar inside or after surrounding section bar, is left gap slightly between plastic constraint member bodies and section bar.
Preferably, the size in gap is less than 0.2 millimeter.
Plastic constraint component of the present utility model can carry out three-dimensional bending to thin wall hollow section bar, and ensures curved surface quality.The utility model also has structure simply simultaneously, is easy to manufacture, installs and uses process simple and easy, be applicable to repeatedly the advantages such as Reusability.Plastic constraint component of the present utility model is applied widely, can be applicable to closed cross-section thin-wall section, non-close cross section thin-wall section, open odd-shaped cross section thin-wall section.
Accompanying drawing explanation
Fig. 1 is the confining part of the utility model first embodiment and the thin-wall section schematic diagram of use thereof;
Fig. 2 is the generalized section of Fig. 1;
Fig. 3 is that the utility model second embodiment is suitable for thin-wall section schematic cross-section;
Fig. 4 is the confining part schematic diagram of the utility model second embodiment;
Fig. 5 is the confining part working state schematic representation of the utility model second embodiment;
Fig. 6 is that the utility model the 3rd embodiment is suitable for thin-wall section schematic cross-section;
Fig. 7 is that the utility model the 4th embodiment is suitable for thin-wall section schematic cross-section.
Detailed description of the invention
Performance of the present utility model is described in detail below in conjunction with accompanying drawing, but their also paired not restrictions of the present utility model, only for example.Simultaneously by illustrating that advantage of the present utility model will become clearly and easy understand.
The application that thin-wall section manufactures at automobile, track train, high-speed railway passenger is more and more extensive, but thin-wall section length is long, rigidity is little, adds flexural deformation in man-hour large, the thus bottleneck being processed into organization of production of thin-wall section.The cross section kind of the thin-wall section that the car bodies such as automobile, track train, high-speed railway passenger are applied is more, except conventional " mouth " font, " day " font, also comprise multiplely to close, the thin-wall section in semiclosed cross section, also have the thin-wall section of some open cross-sections also comparatively conventional.Occur that the problem of the gross distortion of depression or protrusion occurs in cross section, ad hoc meter flexible constraint component for solving in the brake forming process such as thin-wall section stretch bending or press-bending.
Embodiment one
As shown in Figure 1, open odd-shaped cross section thin-wall section 1 cooperatively interacts with flexible constraint member bodies 2, guarantees that open odd-shaped cross section thin-wall section 1 surrounds by confining part body 2 completely.Open odd-shaped cross section thin-wall section 1 is the section bar of aluminium alloy, stainless steel and other metal materials.This thin-wall section 1 lacks constraint in BENDING PROCESS, and the surface at aggressive bend position will epirelief or recessed, serious shadow quality of item.For this reason, the aggressive bend position designing flexible constraint member bodies 2 pairs of thin-wall sections 1 retrains the quality ensureing curved article.Flexible constraint member bodies 2 adopts the plastic material manufactures such as nylon 6 (PA6), monomer cast nylon (MCPA) or polyurethane (PU), there is pliability, while the surface of constraint thin-wall section 1, three-dimensional bending in xy, yz, xz plane can be realized.It for coordinate with open odd-shaped cross section thin-wall section 1, and surrounds by the Cross section Design of confining part body 2 completely, as shown in Figure 2.For ensureing that confining part body 2 is inserted in thin-wall section 1 smoothly, can being designed and sized to confining part body 2 to leave between thin-wall section 1 and being less than gap, be such as less than 0.2 millimeter of gap.Subsequently confining part body 2 is inserted in the aggressive bend place of open odd-shaped cross section thin-wall section 1, carries out stretch bending or bent into shape; To be formed complete after, take out this confining part body 2.
Embodiment two
For semi-enclosed " mouth " font cross section thin-wall section as shown in Figure 3, adopt flexible constraint component as shown in Figure 4.Confining part body 2 ' adopts the plastic material manufactures such as nylon 6 (PA6), monomer cast nylon (MCPA) or polyurethane (PU), confining part body 2 ' can realize hyperboloid and bend in xy, xz, yz tri-planes, that is realizes three-dimensional bending.The cross sectional shape of confining part body 2 ' is also " mouth " font, matches with the cross sectional shape of thin-wall section.For ensureing that confining part body 2 ' is inserted in thin-wall section 1 smoothly, can being designed and sized to confining part 2 ' to leave between thin-wall section and being less than gap, be such as less than the gap of 0.2 millimeter.In brake forming process, stretch bending or bent into shape are carried out in the aggressive bend position that confining part body 2 ' inserts thin-wall section; To be formed complete after, take out this confining part body 2 '.
As shown in Figure 4, confining part body 2 ' can be offered and allow dead slot 14, to ensure that confining part body 2 ' significantly can bend in xy plane, as shown in Figure 5.The size of dead slot 4 can be adjusted as required, and during the large component of bending curvature, flexural deformation is large, can by the larger of dead slot 4; During the little component of bending curvature, flexural deformation is little, flexural deformation can be allowed the size of dead slot 4 reduce.
In order to confining part body 2 ' is inserted thin-wall section, and after brake forming terminates, confining part 2 ' is taken out from thin-wall section, ad hoc meter backing metal 12.Backing metal 12 adopts normal carbon steel making, forms through normalizing heat treatment.Backing metal 12 adopts screw 13 to be connected with constraint member bodies 2 ', and backing metal 12 is also provided with drawing groove 15.After brake forming terminates, utilize a special bayonet socket to block drawing groove 5, take out confining part body 2 '.
Embodiment three
For the semi-enclosed semi-circular cross-section thin-wall section shown in Fig. 6, the cross sectional shape of confining part body is semicircle, the plastic material manufactures such as same employing nylon 6 (PA6), monomer cast nylon (MCPA) or polyurethane (PU), leave gap slightly between its sectional dimension and thin-wall section, such as, be less than 0.2 millimeter.As required confining part body can mating band drawing groove backing metal use.
Embodiment four
For closed " mouth " font cross section thin-wall section shown in Fig. 7, the cross sectional shape of confining part body is " mouth " font, the plastic material manufactures such as same employing nylon 6 (PA6), monomer cast nylon (MCPA) or polyurethane (PU), leave gap slightly between its sectional dimension and thin-wall section, such as, be less than 0.2 millimeter.As required confining part body can mating band drawing groove backing metal use.
The course of work describes
In brake forming process, confining part body inserted or is inserted in thin-wall section to be bent, the particularly aggressive bend position of thin-wall section, also can insert from two of thin-wall section or be inserted in as required.Subsequently thin-wall section is stuck on stretch benders or forcing press together with confining part body, carries out brake forming.To be bent shaping complete after, by thin-wall section with constraint member bodies together with take off forcing press or stretch benders, utilize a special bayonet socket to block drawing groove 5 and pull out plastic constraint component.
Can be understood, above-described embodiment 1-4 does not form restriction of the present utility model, and technical staff can combine the form of embodiment or adjust in technical conceive of the present utility model.Such as, for curved open formula odd-shaped cross section thin-wall section confining part body equally can mating band drawing groove backing metal use.During brake forming, the length of confining part body can adjust flexibly, also can place multiple confining part in multiple aggressive bend positions of thin-wall section.
Claims (6)
1. for a plastic constraint component for bending thin-wall section, it is characterized in that: plastic constraint member bodies is made up of plastic material, can three-dimensional bending be realized; Described plastic constraint member bodies inserts the inside of closed cross-section section bar or semiclosed cross section section bar, or open abnormal-shaped section bar entirety is surrounded, thus the surface of constraint closed cross-section section bar, semiclosed cross section section bar or open abnormal-shaped section bar, make section bar keep excellent surface quality when drastic deformation.
2. plastic constraint component according to claim 1, is characterized in that, described plastic material is nylon 6 (PA6), monomer cast nylon (MCPA) or polyurethane (PU) are made.
3. plastic constraint component according to claim 1, is characterized in that, described plastic constraint member bodies is provided with and allows dead slot, to ensure that plastic constraint member bodies significantly can bend in a plane.
4. plastic constraint component according to claim 1, is characterized in that, this plastic constraint component also comprises backing metal, this backing metal and plastic constraint member bodies are connected by screw, backing metal is made up of common straightcarbon steel, and through normalizing heat treatment, it has drawing groove.
5. plastic constraint component according to claim 1, it is characterized in that, the plastic constraint member bodies that is designed and sized to of described plastic constraint member bodies is inserted section bar inside or after surrounding section bar, is left gap slightly between plastic constraint member bodies and section bar.
6. plastic constraint component according to claim 5, is characterized in that, the size in described gap is less than 0.2 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542344.0U CN204276596U (en) | 2014-09-22 | 2014-09-22 | A kind of plastic constraint component for bending thin-wall section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542344.0U CN204276596U (en) | 2014-09-22 | 2014-09-22 | A kind of plastic constraint component for bending thin-wall section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204276596U true CN204276596U (en) | 2015-04-22 |
Family
ID=52859794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420542344.0U Expired - Fee Related CN204276596U (en) | 2014-09-22 | 2014-09-22 | A kind of plastic constraint component for bending thin-wall section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204276596U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259277A (en) * | 2014-09-22 | 2015-01-07 | 倪慨宇 | Plastic constraint component for bending thin wall profile material |
| CN109530506A (en) * | 2017-09-21 | 2019-03-29 | 比亚迪股份有限公司 | The bending forming method of filling block and hollow material |
-
2014
- 2014-09-22 CN CN201420542344.0U patent/CN204276596U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259277A (en) * | 2014-09-22 | 2015-01-07 | 倪慨宇 | Plastic constraint component for bending thin wall profile material |
| CN104259277B (en) * | 2014-09-22 | 2017-06-30 | 倪慨宇 | A kind of plastic constraint component for bending thin-wall section |
| CN109530506A (en) * | 2017-09-21 | 2019-03-29 | 比亚迪股份有限公司 | The bending forming method of filling block and hollow material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107755490B (en) | A kind of martensite steel 3D free bend manufacturing process | |
| CN103752666B (en) | The tubing press shaping die method of flexible chain ball plug | |
| CN103128127A (en) | Parallel wire roller pulling combined forming technology and production equipment thereof | |
| CN204276596U (en) | A kind of plastic constraint component for bending thin-wall section | |
| JP4920649B2 (en) | Multi-stage press forming method with excellent shape freezing | |
| CN201482843U (en) | Core print device for pipe bender | |
| JP5031702B2 (en) | Multi-stage press forming method with excellent shape freezing | |
| CN204108206U (en) | Is furnished with the closed-type cold-extruding mould of counterpressure forming structure | |
| CN104741400A (en) | Inequilateral empty sinking mold for rectangular specially-shaped steel pipe | |
| JP5031703B2 (en) | Multi-stage press forming method with excellent shape freezing | |
| CN104259277A (en) | Plastic constraint component for bending thin wall profile material | |
| CN103056221B (en) | Flexible bending tube die of ball-and-socket joint structure | |
| CN108555046A (en) | The ultra dense degree internal thread straight trough copper pipe of one kind and its process mould | |
| RU147077U1 (en) | CALIBRATION TOOL FOR LINEAR EXTRUDED PIPES | |
| CN105290129A (en) | Tapered lead-in tube drawing mold | |
| CN104874624B (en) | A kind of external mold of square steel tubes equilateral lining core mould | |
| CN212616909U (en) | Air inlet end cone shell structure of automobile air inlet system | |
| CN110695118B (en) | Method for reducing residual stress of high-speed extrusion forming blade | |
| CN203140563U (en) | Soft pipe-bending die in ball-and-socket joint structure | |
| CN202824209U (en) | Two-sectional sizing working tape porthole die for aluminum alloy extruded pipe | |
| CN104741452A (en) | Automotive support assembly flanging die with springback compensation function | |
| CN205833976U (en) | Auto absorber piston powder metallurgy sizing die has | |
| CN206141463U (en) | Metal splice plate for automotive interior | |
| CN205834154U (en) | A kind of car hands handle type support | |
| CN204953558U (en) | Bar copper wire drawing mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| DD01 | Delivery of document by public notice |
Addressee: Ni Kaiyu Document name: Notification of Passing Examination on Formalities |
|
| DD01 | Delivery of document by public notice |
Addressee: Ni Kaiyu Document name: Notification to Go Through Formalities of Registration |
|
| CP02 | Change in the address of a patent holder |
Address after: 241080, Anhui, Wuhu Province three mountain development zone, No. 2 Bridge Road, The Union Buildings, set up Swiss joint heavy industry technology department Patentee after: Ni Kaiyu Address before: 241080 Huatai Industrial Co., Ltd., No. 9 ho Road, Wuhu three green food economy industrial park, Anhui Patentee before: Ni Kaiyu |
|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |