CN202427778U - Hydraulic bending press - Google Patents
Hydraulic bending press Download PDFInfo
- Publication number
- CN202427778U CN202427778U CN2012200138056U CN201220013805U CN202427778U CN 202427778 U CN202427778 U CN 202427778U CN 2012200138056 U CN2012200138056 U CN 2012200138056U CN 201220013805 U CN201220013805 U CN 201220013805U CN 202427778 U CN202427778 U CN 202427778U
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- hydraulic
- pipe fitting
- plug
- die cavity
- press brake
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- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic bending press comprising a rack and a lower molding die cavity arranged on the rack. An upper molding die cavity is further arranged above the lower molding die cavity; a clamping mechanism is arranged at two sides of the upper molding die cavity; a bending cylinder is arranged at the upper end of the upper molding die cavity; a pressing cylinder is arranged at the upper end of the clamping mechanism. The hydraulic bending press further comprises drain plugs for sealing two ends of a pipe fitting and a hydraulic station for filling a hydraulic medium into the pipe fitting; the drain plugs are arranged at two sides of the lower molding die cavity; one drain plug is a drain plug with a hole; the drain plug with the hole is connected with the hydraulic station; the hydraulic station is filled with the hydraulic medium; and the hydraulic station is used for injecting the hydraulic medium into the pipe fitting through the drain plug with the hole. The hydraulic medium is filled into the pipe fitting and the hydraulic medium provides a supporting force to the pipe fitting, so that the pipe fitting can be bent for a large angle and the pipe fitting with a small bending radius is bent, and high-difficulty bending of various complicated pipe fittings can be met.
Description
Technical field
The utility model relates to the press bending apparatus field, relates in particular to a kind of hydraulic press brake.
Background technology
Bullodozer is mainly used in the processing of industry metal tube based articles such as leisure tables and chairs, tent flower stand, tourism goods, steel furniture, automobile, petrochemical industry, bathroom and tubulation; Domestic application also more and more widely; Be multiple pipe, section bar, the desirable supporting machinery of cutting, reducing and expansion, crooked riveted joint processing.
Existing press bending apparatus; Generally be pipe fitting to be curved to be carried out effective clamping, through the action downwards of last shaping die cavity pipe fitting applied active force then through clamping device, make the shaping die cavity extremely with following shaping cavity closed; Accomplish whole press-bending process, open mould again and take out the pipe fitting after bending.But, therefore generally can not support pipe fitting with the rigidity plug because in the press-bending process, the shape of pipe fitting can change.When pipe fitting is carrying out wide-angle bending or small-bend radius pipe fitting when bending; The flexural deformation position is easy to cause unstability because tube wall stress changes; Make pipe fitting crackle or wrinkling occur, therefore, bending process generally is not suitable for bending of wide-angle bending or small-bend radius pipe fitting.Yet along with the development of tubing part process, the increasing demand of the type part is obvious.But existing pipe fitting press bending apparatus has restricted the tubing part to a certain extent to diversified, complicated development and application.
Therefore, prior art awaits to improve and development.
The utility model content
In view of the deficiency of above-mentioned prior art, the purpose of the utility model is to provide a kind of hydraulic press brake, is intended to solve be prone to crackle or wrinkling problem when existing bullodozer carries out bending of wide-angle bending and small-bend radius pipe fitting to pipe fitting.
The technical scheme of the utility model is following:
A kind of hydraulic press brake; Comprise frame and be arranged on the following shaping die cavity on the frame, said shaping die cavity down top also is provided with the shaping die cavity, and said both sides of going up the shaping die cavity are provided with clamping device; Said upper end of going up the shaping die cavity is provided with the press-bending cylinder; The upper end of said clamping device is provided with hold-down cylinder, and wherein, said hydraulic press brake also comprises and is used to seal the plug at pipe fitting two ends and is used for the Hydraulic Station to the inner filling liquid piezodielectric of pipe fitting; Said plug is arranged on down the both sides of shaping die cavity; One of them plug is a plug with holes, and said plug with holes is connected with Hydraulic Station, in the said Hydraulic Station hydraulic medium is housed, and said Hydraulic Station injects hydraulic medium through said plug with holes in pipe fitting.
Described hydraulic press brake, wherein, said plug and pipe fitting are crush seal or thread seal.
Described hydraulic press brake wherein, is provided with sealing ring or fluid sealant between said plug and the pipe fitting.
Described hydraulic press brake wherein, comprises also being used to drive the transmission mechanism that plug is sealed pipe fitting that said plug is connected with transmission mechanism.
Described hydraulic press brake, wherein, said transmission mechanism is mechanical transmission mechanism, hydraulic jack transmission mechanism or hydraulic cylinder transmission mechanism.
Described hydraulic press brake, wherein, be provided with in the said Hydraulic Station one be used to control the pipe fitting internal pressure the Hydraulic Station circuit control device.
Described hydraulic press brake wherein, is provided with a rubber pocket in said pipe fitting, said rubber pocket is connected with plug with holes.
Described hydraulic press brake, wherein, said Hydraulic Station also be provided with one be used to reclaim hydraulic medium the hydraulic medium recycle bin.
Described hydraulic press brake, wherein, the cross section of said pipe fitting is variable cross-section or irregular section.
Beneficial effect: the utility model hydraulic press brake is owing to be provided with plug and the transmission mechanism thereof that is used to seal pipe fitting; Plug with holes wherein also connect one hydraulic medium is housed Hydraulic Station; Be used for filling liquid piezodielectric in the pipe fitting; This liquid medium provides supporting force to pipe fitting, thereby has realized and can carry out the bending of wide-angle and bending of small-bend radius pipe fitting to pipe fitting, can satisfy that the highly difficult of various complex pipes bent.
Description of drawings
Fig. 1 is the structural representation of the utility model hydraulic press brake.
Fig. 2 is the structural representation under the utility model hydraulic press brake duty.
The specific embodiment
The utility model provides a kind of hydraulic press brake, for purpose, technical scheme and the effect that makes the utility model is clearer, clear and definite, below to the utility model further explain.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Hydraulic press brake that the utility model provides; As shown in Figure 1; Comprise frame 100, said frame 100 is provided with down shaping die cavity 120, goes up shaping die cavity 110, is used for fixing the clamping device 140 of pipe fitting 180, the hold-down cylinder 210 that is used to drive the press-bending cylinder 130 of shaping die cavity 110 radial motions and is used to drive clamping device 140 radial motions.Said shaping die cavity 120 down is arranged on frame 100 bottom; The said shaping die cavity 110 of going up is arranged on the said top of shaping die cavity 120 down with clamping device 140, and said clamping device 140 is arranged on the both sides of shaping die cavity 110; Said hold-down cylinder 210 and press-bending cylinder are arranged on the top of clamping device 140; Said press-bending cylinder 130 is arranged on the top of shaping die cavity 110.
The improvement of the utility model is that said hydraulic press brake also comprises and is used to seal the plug at pipe fitting 180 two ends and is used for the Hydraulic Station 170 to pipe fitting 180 inner filling liquid piezodielectrics; Said plug is arranged on down the both sides of shaping die cavity 120; One of them plug that is used to seal the pipe fitting end is provided with perforate, and said perforate is connected with said Hydraulic Station 170, in the said Hydraulic Station hydraulic medium is housed.Hydraulic Station 170 can be through plug with holes filling liquid piezodielectric in pipe fitting 180; So that make the enough pressure of pipe fitting 180 inner maintenances; Enough supporting roles to be provided to pipe fitting 180, play the supporting role that substitutes the rigidity plug, can in bending process, improve the presentation quality of crooked position.Below in conjunction with diagram, the utility model is described further.
The embodiment of the utility model hydraulic press brake; As shown in Figure 1, comprise frame 100 and be arranged on the following shaping die cavity 120 on the frame that following shaping die cavity 120 is used to place pipe fitting 180; The mid portion of this time shaping die cavity is a warp architecture, and the curved shape of pipe fitting is identical with this warp architecture; Also comprise the last shaping die cavity 110 suitable with this time shaping die cavity 120; The mid portion that should go up the shaping die cavity is suitable with the mid portion of following shaping die cavity, and last shaping die cavity can be to bottom offset, with following shaping die cavity near; Thereby make pipe fitting 180 form required curved shape; The both sides that should go up shaping die cavity 120 also are provided with clamping device 140, and this clamping device 140 can clamping pipe fitting 180 unbent parts, when pipe fitting is carried out bending, to fix pipe fitting; Said upper end of going up the shaping die cavity also is provided with press-bending cylinder 130; This press-bending cylinder 130 can promote shaping die cavity 110 to bottom offset, and the upper end of said clamping device 140 is provided with hold-down cylinder 210, this hold-down cylinder 210 can promote clamping device 140 to bottom offset to grasp pipe fitting.Be provided with plug 150 and plug 160 with holes at the said two ends of shaping die cavity 100 down; Specifically can plug 150 be set in the left side of following shaping die cavity 120; On the following right side of shaping die cavity 120 plug 160 with holes is set, the position of this plug 150 and plug 160 with holes is interchangeable certainly, said plug 150 and plug with holes 160 also can connect one be used for promoting respectively plug 150 and plug with holes 160 sealing pipe fittings 180 transmission mechanism 220; Said plug with holes 160 also connect one hydraulic medium is housed Hydraulic Station 170; This Hydraulic Station 170 can be in pipe fitting 180 the filling liquid piezodielectric pipe fitting 180 is inner to keep enough pressure so that make, pipe fitting is provided enough supporting roles; Bend thereby make hydraulic press brake carry out wide-angle to pipe fitting, perhaps the pipe fitting to small-bend radius bends.
The utility model hydraulic press brake is owing to adopted hydraulic system, and hydraulic medium wherein has any deformation ability, therefore, when processing is bent, can carry out wide-angle to pipe fitting and bend, and perhaps the pipe fitting to small-bend radius bends; Simultaneously, owing to adopted the plug structure at the body two ends, the pressure of hydraulic medium can be maintained in distortion in the hydraulic system, and therefore, the utility model institute pipe fitting processed can not form the inessential distortion of fold class on body.
When implementing bending process, as depicted in figs. 1 and 2, at first the hold-down cylinder 210 promotion clamping devices 140 by hydraulic press brake move down clamping pipe fitting 180; Can promote two ends that plugs 150 and plug with holes 160 seal pipe fitting 180 to form a close cavity through transmission mechanism 220 then; Wherein, the Hydraulic Station 170 that plug 160 with holes connects begins in pipe fitting 180, to inject hydraulic medium, and through the pressure in the Hydraulic Station circuit control device 190 control pipe fittings 180; To adjust suitable support pressure; Promote to go up the downward displacements of shaping die cavity through press-bending cylinder 130 again, and with following shaping die cavity near, the while is in the press-bending process; Need to keep the lasting injection of hydraulic medium, to guarantee the stable of pipe fitting internal pressure.Can be after the completion of bending by 190 pressure releases of Hydraulic Station circuit control device; And draw back plug 150 and plug 160 with holes through the transmission mechanism 220 at two ends; Discharge hydraulic medium in the pipe fitting, unclamp hold-down cylinder 210 and press-bending cylinder 130 simultaneously, clamping device 140 and last shaping die cavity 110 reset; Take out bending pipe fitting 180, accomplish the operation of bending.
The utility model is that movable plug 150 and plug 160 with holes are set at pipe fitting 180 two ends, and is as shown in Figure 1, and controls the switching of plugs 150 and plug 160 with holes with transmission mechanism 220, thereby forms airtight cavity volume with pipe fitting 180.Transmission mechanism 220 can be mechanical; For example a machine control unit can be set; And with the startup of Electric Machine Control machinery control device with close, is to control better certainly, for example with the mode of hydraulic pressure; Transmission mechanism 220 is hydraulic jack or hydraulic cylinder, promotes plug 150 and plug 160 sealing pipe fittings 180 with holes with better control transmission mechanism.Plug 150 can be for example crush seal or thread seal of rigid seal with pipe fitting 180, plug with holes 160 with the sealing means of pipe fitting 180; To guarantee the sealing reliability of plug 150 and plug with holes 160 and pipe fitting 180; Also can select flexible sealing, for example adopt sealing ring or fluid sealant to seal, so that reduce the hard collision of plug 150 and plug with holes 160 and pipe fitting 180; Thereby reduce the wearing and tearing of equipment, improve service life of equipment.
The hydraulic medium of the utility model hydraulic press brake, normal adopt hydraulic oil, emulsion, glycerine arranged, under special circumstances can also water, several kinds of mixtures that also can be chosen in above-mentioned substance are as hydraulic medium.This mode is directly to use hydraulic medium as supporting, and is more abundant to the filling of pipe fitting 180, and the stable more and balance of pipe fitting 180 pressure everywhere is more stable to the supporting role of pipe fitting 180, as shown in Figure 1.In addition, also can be chosen in the pipe fitting 180 inside rubber pocket of packing into, said rubber pocket is connected with plug 160 with holes; In rubber pocket, inject above-mentioned hydraulic medium; With rubber pocket supporting tubular member inwall, the advantage of this mode is that the hydraulic medium recovery is easier, and working environment more cleans; Thereby can not pollute pipe fitting, the recycle of hydraulic medium is more prone to.In addition; Since the technical scheme of the utility model be adopt flexible body for example hydraulic medium or rubber pocket as the support unit when crooked to pipe fitting; Consider that from this point what expect easily is to adopt elastomer-filled pipe fittings such as strip polyurethane or rubber; And then the operation of bending, can realize equally that the utility model hydraulic press brake bends the wide-angle of pipe fitting and to the purpose that bends of small-bend radius pipe fitting.
The Hydraulic Station of the utility model hydraulic press brake also can be provided with a hydraulic medium recycle bin 200; Be used for that bending process is accomplished the hydraulic medium of discharging in the rear tubular member and carry out recycling; Thereby reduced pollution to environment; Also further reduced cost in addition, this hydraulic medium recycle bin 200 also can further be provided with filtration system, is used to filter out because the impurity that filled tube brings.
The utility model hydraulic press brake is owing to set up the plug that is used to seal pipe fitting; Wherein a plug is a plug with holes; And an end of plug with holes connect one hydraulic medium is housed Hydraulic Station, be used for filling liquid piezodielectric in the pipe fitting, this liquid medium provides supporting force to pipe fitting; Realized and to have carried out the bending of wide-angle and the purpose that bends of small-bend radius pipe fitting to pipe fitting, can satisfy that the highly difficult of various complex section pipe fittings bent.
Should be understood that; The application of the utility model is not limited to above-mentioned giving an example; Concerning those of ordinary skills, can improve or conversion according to above-mentioned explanation, all these improvement and conversion all should belong to the protection domain of the utility model accompanying claims.
Claims (9)
1. hydraulic press brake; Comprise frame and be arranged on the following shaping die cavity on the frame, said shaping die cavity down top also is provided with the shaping die cavity, and said both sides of going up the shaping die cavity are provided with clamping device; Said upper end of going up the shaping die cavity is provided with the press-bending cylinder; The upper end of said clamping device is provided with hold-down cylinder, it is characterized in that, said hydraulic press brake also comprises and is used to seal the plug at pipe fitting two ends and is used for the Hydraulic Station to the inner filling liquid piezodielectric of pipe fitting; Said plug is arranged on down the both sides of shaping die cavity; One of them plug is a plug with holes, and said plug with holes is connected with Hydraulic Station, in the said Hydraulic Station hydraulic medium is housed, and said Hydraulic Station injects hydraulic medium through said plug with holes in pipe fitting.
2. hydraulic press brake according to claim 1 is characterized in that, said plug and pipe fitting are crush seal or thread seal.
3. hydraulic press brake according to claim 1 is characterized in that, is provided with sealing ring or fluid sealant between said plug and the pipe fitting.
4. hydraulic press brake according to claim 1 is characterized in that, also comprises being used to drive the transmission mechanism that plug is sealed pipe fitting, and said plug is connected with transmission mechanism.
5. hydraulic press brake according to claim 4 is characterized in that, said transmission mechanism is mechanical transmission mechanism, hydraulic jack transmission mechanism or hydraulic cylinder transmission mechanism.
6. hydraulic press brake according to claim 1 is characterized in that, be provided with in the said Hydraulic Station one be used to control the pipe fitting internal pressure the Hydraulic Station circuit control device.
7. hydraulic press brake according to claim 1 is characterized in that, a rubber pocket is set in said pipe fitting, and said rubber pocket is connected with plug with holes.
8. hydraulic press brake according to claim 1 is characterized in that, said Hydraulic Station also be provided with one be used to reclaim hydraulic medium the hydraulic medium recycle bin.
9. hydraulic press brake according to claim 1 is characterized in that, the cross section of said pipe fitting is variable cross-section or irregular section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200138056U CN202427778U (en) | 2012-01-13 | 2012-01-13 | Hydraulic bending press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200138056U CN202427778U (en) | 2012-01-13 | 2012-01-13 | Hydraulic bending press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202427778U true CN202427778U (en) | 2012-09-12 |
Family
ID=46777253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200138056U Expired - Lifetime CN202427778U (en) | 2012-01-13 | 2012-01-13 | Hydraulic bending press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202427778U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286173A (en) * | 2013-06-17 | 2013-09-11 | 中国航空工业集团公司北京航空制造工程研究所 | Tubular product bending internal pressing supporting device and tubular product bending method |
| CN107774759A (en) * | 2017-12-12 | 2018-03-09 | 张家港市立业机械有限公司 | Efficient bullodozer |
| CN108435853A (en) * | 2018-02-07 | 2018-08-24 | 凌云工业股份有限公司 | A kind of metal pipe material no waste mine bend molding apparatus |
| CN110576090A (en) * | 2019-08-26 | 2019-12-17 | 四川航天长征装备制造有限公司 | Pipe orifice sealing device |
| CN111482497A (en) * | 2020-06-11 | 2020-08-04 | 张亚 | Pipe bending machine and bending process for manufacturing pipe by using pipe steel structure |
-
2012
- 2012-01-13 CN CN2012200138056U patent/CN202427778U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286173A (en) * | 2013-06-17 | 2013-09-11 | 中国航空工业集团公司北京航空制造工程研究所 | Tubular product bending internal pressing supporting device and tubular product bending method |
| CN103286173B (en) * | 2013-06-17 | 2015-02-04 | 中国航空工业集团公司北京航空制造工程研究所 | Tubular product bending method |
| CN107774759A (en) * | 2017-12-12 | 2018-03-09 | 张家港市立业机械有限公司 | Efficient bullodozer |
| CN107774759B (en) * | 2017-12-12 | 2024-04-19 | 张家港市立业机械有限公司 | High-efficiency bending press |
| CN108435853A (en) * | 2018-02-07 | 2018-08-24 | 凌云工业股份有限公司 | A kind of metal pipe material no waste mine bend molding apparatus |
| CN110576090A (en) * | 2019-08-26 | 2019-12-17 | 四川航天长征装备制造有限公司 | Pipe orifice sealing device |
| CN110576090B (en) * | 2019-08-26 | 2020-11-27 | 四川航天长征装备制造有限公司 | Pipe orifice sealing device |
| CN111482497A (en) * | 2020-06-11 | 2020-08-04 | 张亚 | Pipe bending machine and bending process for manufacturing pipe by using pipe steel structure |
| CN111482497B (en) * | 2020-06-11 | 2021-10-08 | 太仓万乾金属制品有限公司 | Pipe bending machine and bending process for manufacturing pipe by using pipe steel structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120912 |