CN107745030A - Hydraulic-bend shaped device and bend forming method - Google Patents
Hydraulic-bend shaped device and bend forming method Download PDFInfo
- Publication number
- CN107745030A CN107745030A CN201710890432.8A CN201710890432A CN107745030A CN 107745030 A CN107745030 A CN 107745030A CN 201710890432 A CN201710890432 A CN 201710890432A CN 107745030 A CN107745030 A CN 107745030A
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- Prior art keywords
- elbow
- hydraulic
- ejector apparatus
- bend
- oil cylinder
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a kind of hydraulic-bend shaped device, including frame, diaphragm capsule is provided with frame, elbow module is provided with diaphragm capsule, at least two ejector apparatus are provided with the frame, around diaphragm capsule, ejector apparatus connects hydraulic pump, ejector apparatus corresponds to elbow module and is configured with top, top is be connected with hydraulic pump plus water pressure passage, the top front end is distributed in cone, the cone-shaped nose diameter of top is less than the diameter of elbow, and the conical aft diameter of top is more than the diameter of elbow.The cone top of the hydraulic-bend shaped device can continue progressive seal pressure to applying on the inside of swan neck embryo port, the sealing of swan neck embryo can be kept under high water pressure condition, hydraulic pressure moulding process is set to implement in bend forming, and obtained elbow is processed without pulling, also no ball pushes away the weak situation in the elbow bottom occurred during technique processing, so as to be greatly improved the intensity of elbow and service life.
Description
Technical field
The present invention relates to a kind of hydraulic-bend shaped device.The invention further relates to a kind of bend forming method.
Background technology
Traditional bend forming typically uses ball pushing manipulation, after exactly elbow is arranged in mould, ball is pushed into elbow, made
It rolls elbow side wall, forms the shape of elbow, but the obtained elbow of ball pushing manipulation is easily formed on tube wall and pulled, especially curved
The outer crook tube wall after ball is pushed away and handled can be significantly thinner than other positions among head, therefore cause that the intensity of elbow is poor, and yield rate is low.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of hydraulic-bend shaped device, and the device is processed to obtain curved
Head tube wall is more uniform and smooth, intensity is higher.Present invention also offers a kind of bend forming method.
Therefore, hydraulic-bend shaped device provided by the invention, including frame, diaphragm capsule is provided with frame, is set in diaphragm capsule
It is equipped with elbow module, in the frame, is provided with least two ejector apparatus around diaphragm capsule, ejector apparatus connection hydraulic pump,
Ejector apparatus corresponds to elbow module and is configured with top, and top is be connected with hydraulic pump plus water pressure passage, the top front end
It is distributed in cone, the cone-shaped nose diameter of top is less than the diameter of elbow, and the conical aft diameter of top is more than elbow
Diameter.
Bend forming method provided by the invention, comprises the following steps：
A, pipe fitting is bent to form swan neck embryo using punched bend machine；
B, swan neck embryo is inserted in elbow module, elbow module is inserted in the lower mode cavity of diaphragm capsule；
C, Mode-locking oil cylinder drives upper mould slow pressurization to setting pressure；
D, ejector apparatus ejects after pusher hydraulic oil cylinder driving, and right push oil cylinder drives right ejector apparatus ejection, the top of rear ejector apparatus
Swan neck embryo both ends are headed into the top of right ejector apparatus, and the top conical surface compresses swan neck embryo two-port, and hydraulic pump is to swan neck
Water-filling in embryo；
E, pressurized cylinder push oil cylinder and the supercharging of right push oil cylinder backward, promotes the top of rear ejector apparatus low with the top of right ejector apparatus
Speed ejection, while hydraulic pressure is stepped up into swan neck embryo by hydraulic pump, it is whole to be finally reached super-pressure water swelling；
F, rear push oil cylinder and right push oil cylinder are retracted, and promote rear ejector apparatus and right ejector apparatus to retract reset, while drive upper mould
Rise and reset, finally take out the elbow after shaping；
G, will cut to obtain finished product elbow at shaping elbow both ends.
The technique effect of the present invention：The cone top of the hydraulic-bend shaped device can be on the inside of swan neck embryo port
Apply and continue progressive seal pressure, the sealing of swan neck embryo can be kept under high water pressure condition, makes hydraulic pressure moulding process
It can implement in bend forming, and process obtained elbow without pulling, also no ball pushes away the elbow occurred during technique processing
The weak situation in bottom, so as to be greatly improved the intensity of elbow and service life.
Brief description of the drawings
Fig. 1 is the structural representation of the hydraulic-bend shaped device of present invention offer.
Fig. 2 is the structural representation of the top in Fig. 1.
Fig. 3 is the structural representation of punched bend machine used in bend forming method provided by the invention, under the state
Punched bend machine is in reset state.
Fig. 4 is the structural representation of the punched bend machine pressed status in Fig. 3.
Embodiment
Shown in reference picture 1, Fig. 2, hydraulic-bend shaped device provided by the invention, including frame 1, it is provided with frame 1
Diaphragm capsule 2, is provided with elbow module 3 in diaphragm capsule 2, and in the frame 1, at least two ejector apparatus 4 are provided with around diaphragm capsule 2,
In the present embodiment, the ejector apparatus 4 includes the rear ejector apparatus 41 controlled by rear push oil cylinder 5 and right push oil cylinder controls 6
Right ejector apparatus 42, ejector apparatus 4 connect hydraulic pump 7, and the corresponding elbow module 3 of ejector apparatus 4 is configured with top 8, and top 8 carries
Be connected with hydraulic pump 7 plus water pressure passage, 8 front ends of the top are distributed in cone, come directly towards 8 cone-shaped nose diameter and are less than
The diameter of elbow, come directly towards 8 conical aft diameter be more than elbow diameter, it is described top 8 conical aft with top 8 after
Portion's transition position is rounding off.In order that sealing effectiveness is more preferable after top 8 compresses, the exit of the elbow module 3 is in and institute
The cone surface shape of the cone matching of top 8 is stated, the top 8 heads into the top circular conical surface and elbow module 3 after elbow
Outlet.
Shown in reference picture 1, Fig. 2, Fig. 3, present invention also offers a kind of bend forming method, comprise the following steps：
A, pipe fitting is bent to form support 34 using punched bend machine；
B, support 34 is inserted in elbow module 3, elbow module 3 inserted in the lower mode cavity of diaphragm capsule 2；
C, Mode-locking oil cylinder 10 drives upper mould slow pressurization to setting pressure；
D, ejector apparatus 41 ejects after rear push oil cylinder 5 drives, and right push oil cylinder 6 drives right ejector apparatus 42 to eject, rear ejector apparatus
41 top 8 and the top 8 of right ejector apparatus 42 head into the both ends of swan neck embryo 9, and 8 conical surfaces of top compress swan neck embryo two-port,
The water-filling into swan neck embryo 9 of hydraulic pump 7；
E, push oil cylinder 5 and right push oil cylinder 6 are pressurized pressurized cylinder backward, promote top 8 and the right ejector apparatus 6 of rear ejector apparatus 41
The ejection of 8 low speed is come directly towards, while hydraulic pressure is stepped up into swan neck embryo by hydraulic pump 7, it is whole to be finally reached super-pressure water swelling；
F, rear push oil cylinder 5 and right push oil cylinder 6 are retracted, and are promoted rear ejector apparatus 41 and right ejector apparatus 42 to retract reset, are driven simultaneously
Dynamic upper mould, which rises, to be resetted, and finally takes out the elbow after shaping；
G, will cut to obtain finished product elbow at shaping elbow both ends.
Shown in reference picture 3, Fig. 4, the punched bend machine includes support 34, and die shoe, die shoe are provided with support 34
Two metallic plates 11 including horizontally-parallel distribution, the center of metallic plate 11 carry V-notch 12, and the both ends of two metallic plate 11 are cut with scissors respectively
Left swing moving part 13 and right swing component 14 are connected to, left swing moving part 13 and right swing component 14 or so are oppositely arranged, left swing moving part 13 and the right side
Deep-slotted chip breaker 15 is offered on swing component 14, left swing moving part 13 and right swing component 14 are each equipped with hydraulic liftout apparatus 16, hydraulic pressure
The push rod 17 of liftout attachment 16 is ejected along deep-slotted chip breaker 15, and at least two leads 18 are vertically fixed with the support 34, are led
Walking beam 19 is socketed with to post 18, the upper end of the lead 18, walking beam 19 are fixedly arranged above upper beam 20, set on upper beam 20
Punching press oil cylinder 21 is put, punching press oil cylinder 21 drives walking beam 19, ejection cylinder 22 is provided with walking beam 19, the walking beam 19
Lower end carries fore-set 23, and fore-set 23 and the pivot 24 of lower section are be hinged, and left pressing plate 25 and right pressing plate 26, left pressure are hinged with pivot 24
The outer end of plate 25 and right pressing plate 26 is be hinged by the intermediate plate 28 of hinged block 27 and two respectively, the upper end of two intermediate plate 28 respectively with left frame
Plate 29 and right frame plate 30 are be hinged, and the ejection cylinder 22 has extended downwardly from guide rod 31, and the lower end of guide rod 31 is fixed with middle top plate 32,
The fore-set 23 passes through middle top plate 32, and the light frame plate 29 and right frame plate 30 are in the underface of the middle top plate 32.
Light frame plate 29 described in the present embodiment and right frame plate 30 are fixed on the lower surface of the middle top plate 32
Shown in reference picture 2, Fig. 3, the mode of operation of above-mentioned punched bend machine includes：A, the straight tube 33 for cutting completion is inserted into left swing
In deep-slotted chip breaker 15 on moving part 29 and right swing component 30, B, hydraulic liftout apparatus 16 stretch out push rod 17 to centre, and two push rods 17 divide
Do not enter from the both ends of straight tube 33；The left pressing plate 25 and right pressing plate 26 transverse plane before punching press oil cylinder 21 pushes are distributed, institute
Stating punching press oil cylinder 21 drives walking beam 19 and fore-set 23 persistently to push, and makes left pressing plate 25 and the top pressure straight tube 33 of right pressing plate 26, straight tube
33 are persistently bent downwardly, and push rod 17 described in BENDING PROCESS is gradually extracted out from the both ends of straight tube 33, while left swing moving part 13 and right pendulum
Moving part 14 is tilted by pressure outboard end caused by the flexural deformation of straight tube 33, and the left pressing plate 25 and right pressing plate 26 are respectively by left swing
Moving part 13 and right swing component 14 stick up the equal outboard end of role and tilted, and the V of left swing moving part 13 and right swing component 14 downwards
V notch v 12 is absorbed in, until swan neck embryo 9 is molded.
Claims (9)
1. a kind of hydraulic-bend shaped device, including frame, diaphragm capsule is provided with frame, elbow module, institute are provided with diaphragm capsule
State in frame, at least two ejector apparatus, ejector apparatus connection hydraulic pump are provided with around diaphragm capsule, ejector apparatus corresponds to elbow
Mold arrangement has top, and top adds water pressure passage with what is be connected with hydraulic pump, it is characterized in that：The top front end is in cone
Distribution, the cone-shaped nose diameter of top are less than the diameter of elbow, and the conical aft diameter of top is more than the diameter of elbow.
2. hydraulic-bend shaped device according to claim 1, it is characterized in that：The exit of the elbow module is in and institute
State the cone surface shape of the cone matching of top, the top circular conical surface and the elbow module outlet after heading into elbow
The circular conical surface at place compresses elbow side wall in planar.
3. hydraulic-bend shaped device according to claim 1 or 2, it is characterized in that：The ejector apparatus is included by pusher
The rear ejector apparatus of oil cylinder control and the right ejector apparatus of right push oil cylinder control.
4. hydraulic-bend shaped device according to claim 1 or 2, it is characterized in that：The conical aft of the top with
Top rear portion transition position is rounding off.
5. hydraulic-bend shaped device according to claim 3, it is characterized in that：The conical aft of the top and top
Rear portion transition position is rounding off.
6. a kind of bend forming method, it is characterized in that：Comprise the following steps：
A, pipe fitting is bent to form swan neck embryo using punched bend machine；
B, swan neck embryo is inserted in elbow module, elbow module is inserted in the lower mode cavity of diaphragm capsule；
C, Mode-locking oil cylinder drives upper mould slow pressurization to setting pressure；
D, ejector apparatus ejects after pusher hydraulic oil cylinder driving, and right push oil cylinder drives right ejector apparatus ejection, the top of rear ejector apparatus
Swan neck embryo both ends are headed into the top of right ejector apparatus, and the top conical surface compresses swan neck embryo two-port, and hydraulic pump is to swan neck
Water-filling in embryo；
E, pressurized cylinder push oil cylinder and the supercharging of right push oil cylinder backward, promotes the top of rear ejector apparatus low with the top of right ejector apparatus
Speed ejection, while hydraulic pressure is stepped up into swan neck embryo by hydraulic pump, it is whole to be finally reached super-pressure water swelling；
F, rear push oil cylinder and right push oil cylinder are retracted, and promote rear ejector apparatus and right ejector apparatus to retract reset, while drive upper mould
Rise and reset, finally take out the elbow after shaping；
G, will cut to obtain finished product elbow at shaping elbow both ends.
7. bend forming method according to claim 6, it is characterized in that：The punched bend machine includes support, on support
Die shoe is provided with, die shoe includes two metallic plates of horizontally-parallel distribution, and metallic plate center carries V-notch, two metals
Plate both ends have been respectively articulated with left swing moving part and right swing component, and left swing moving part and right swing component or so are oppositely arranged, left swing moving part and
Deep-slotted chip breaker is offered on right swing component, left swing moving part and right swing component are each equipped with hydraulic liftout apparatus, hydraulic liftout apparatus
Push rod ejected along deep-slotted chip breaker, at least two leads are vertically fixed with the support, walking beam is socketed with lead,
The upper end of the lead, walking beam are fixedly arranged above upper beam, set punching press oil cylinder on upper beam, punching press hydraulic oil cylinder driving walking beam,
Ejection cylinder is provided with walking beam, the lower end of the walking beam carries the pivot knuckles of fore-set, fore-set and lower section, cut with scissors on pivot
It is connected to left pressing plate and right pressing plate, the outer end of left pressing plate and right pressing plate is hinged by hinged block and two intermediate plates respectively, two intermediate plates
Upper end is hinged with light frame plate and right frame plate respectively, and the ejection cylinder has extended downwardly from guide rod, and lower end of the guide rod is fixed with middle top
Plate, the fore-set pass through middle top plate, and the light frame plate and right frame plate are in the underface of the middle top plate.
8. bend forming method according to claim 6, it is characterized in that：The light frame plate and right frame plate be fixed on it is described in
Between top plate lower surface.
9. the bend forming method according to claim 7 or 8, it is characterized in that：The mode of operation bag of the punched bend machine
Include：A, the straight tube for cutting completion is inserted in the deep-slotted chip breaker on left swing moving part and right swing component, B, hydraulic liftout apparatus are to centre
Push rod is stretched out, two push rods enter from the both ends of straight tube respectively；The left pressing plate and right pressing plate are laterally put down before punching press oil cylinder pushes
EDS maps, the punching press hydraulic oil cylinder driving fore-set are persistently pushed, and make left pressing plate and right pressing plate top pressure straight tube, and straight tube is persistently turned under
Song, push rod described in BENDING PROCESS is gradually extracted out from straight tube both ends, while left swing moving part and right swing component are deformed by straight tube bending
It is equal that caused pressure outboard end tilting, the left pressing plate and right pressing plate are stuck up role by left swing moving part and right swing component respectively
Outboard end is tilted, and the V-notch of left swing moving part and right swing component downwards is absorbed in, until swan neck embryo forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890432.8A CN107745030A (en) | 2017-09-27 | 2017-09-27 | Hydraulic-bend shaped device and bend forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710890432.8A CN107745030A (en) | 2017-09-27 | 2017-09-27 | Hydraulic-bend shaped device and bend forming method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107745030A true CN107745030A (en) | 2018-03-02 |
Family
ID=61255877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710890432.8A Pending CN107745030A (en) | 2017-09-27 | 2017-09-27 | Hydraulic-bend shaped device and bend forming method |
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| Country | Link |
|---|---|
| CN (1) | CN107745030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| CN101972795A (en) * | 2010-09-13 | 2011-02-16 | 浙江天兴管业有限公司 | Machining process of metal elbow |
| CN103769451A (en) * | 2014-02-25 | 2014-05-07 | 武汉理工大学 | Minor radius bend forming method of ultrathin tubular product |
| CN105149381A (en) * | 2015-08-18 | 2015-12-16 | 奇瑞汽车股份有限公司 | Elbow hinge shaping tool and method |
| CN205253789U (en) * | 2015-11-25 | 2016-05-25 | 胡传榜 | Elbow make -up machine |
| CN207266986U (en) * | 2017-09-27 | 2018-04-24 | 浙江海卓利克液压科技有限公司 | Hydraulic-bend molding machine |
-
2017
- 2017-09-27 CN CN201710890432.8A patent/CN107745030A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| CN101972795A (en) * | 2010-09-13 | 2011-02-16 | 浙江天兴管业有限公司 | Machining process of metal elbow |
| CN103769451A (en) * | 2014-02-25 | 2014-05-07 | 武汉理工大学 | Minor radius bend forming method of ultrathin tubular product |
| CN105149381A (en) * | 2015-08-18 | 2015-12-16 | 奇瑞汽车股份有限公司 | Elbow hinge shaping tool and method |
| CN205253789U (en) * | 2015-11-25 | 2016-05-25 | 胡传榜 | Elbow make -up machine |
| CN207266986U (en) * | 2017-09-27 | 2018-04-24 | 浙江海卓利克液压科技有限公司 | Hydraulic-bend molding machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397266A (en) * | 2018-04-26 | 2018-08-14 | 清华大学苏州汽车研究院（相城） | A kind of monolith honeycomb catalysts intake elbow hot gas bulging process equipment and processing technology |
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