CN109277445A - A kind of metal bellows fluid pressure forming device and method - Google Patents
A kind of metal bellows fluid pressure forming device and method Download PDFInfo
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- CN109277445A CN109277445A CN201811330102.4A CN201811330102A CN109277445A CN 109277445 A CN109277445 A CN 109277445A CN 201811330102 A CN201811330102 A CN 201811330102A CN 109277445 A CN109277445 A CN 109277445A
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- 239000012530 fluid Substances 0.000 title claims abstract description 68
- 239000002184 metal Substances 0.000 title claims abstract description 68
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000011159 matrix material Substances 0.000 claims abstract description 216
- 238000003825 pressing Methods 0.000 claims abstract description 36
- 230000002902 bimodal effect Effects 0.000 claims description 12
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000009740 moulding (composite fabrication) Methods 0.000 claims 33
- 230000009467 reduction Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 7
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Classifications
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/10—Corrugating tubes transversely, e.g. helically by applying fluid pressure
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A kind of metal bellows fluid pressure forming device and method, solving the problem of the finished product bellows of prior art preparation, there are apparent wall thickness reductions to influence bellows stiffness and service life at wave crest.Bottom clamp plate and top clamping plate including parallel arrangement, it is characterised in that: the side of Bottom clamp plate towards top clamping plate is provided with movable die, and the pressing mold driving device being arranged in movable die and Bottom clamp plate is connected；The side of top clamping plate towards Bottom clamp plate is provided with fixed mould, and the fluid through-hole of fixed mould adds unloading port to be connected with the fluid on top clamping plate；The movable matrix component and forming matrix component of the interlaced arrangement of the matrix being arranged between movable die and fixed mould, are connected with matrix driving device respectively.It is designed rationally, compact-sized, and the uniformity of forming postwave line thickness of pipe wall distribution is adjusted, is effectively improved the phenomenon being obviously thinned at conventional forming process medium wave peak, can be obviously improved the service performance of metal bellows.
Description
Technical field
The invention belongs to mechanical engineering technical fields, and in particular to one kind can adjust forming postwave line thickness of pipe wall distribution
Uniformity is effectively improved the phenomenon being obviously thinned at conventional forming process medium wave peak, can be obviously improved metal bellows usability
The metal bellows fluid pressure forming device and method of energy.
Background technique
The forming technology of existing bellows, especially precision metallic bellows mainly uses room temperature hydroforming, Huo Zhegao
Gas pressure compacting under the conditions of temperature, it may be assumed that make pipe that plasticity occur using the constraint of the pressure and outer mold of fluid in pipe and become
Shape.The forming mode of this quasi-tradition is usually to form prima under the effect of certain Fluid pressure first, then keeps certain internal pressure
While, be compressed axially pipe and obtain biggish ripple outer diameter, pressure maintaining unloads again later, finally opens mold and takes out forming.But
It is that the finished product bellows prepared using this traditional methods, the characteristics of due to its technique, there are apparent wall thickness to subtract at wave crest
It is thin, thus the rigidity and the service life under service load that have seriously affected bellows.
In addition, due to the excellent intensity of the materials such as titanium alloy, high temperature alloy, rigidity and the performances such as corrosion-resistant, so that they
In bellows industry using more and more；However, it was verified that the poor metal material of these plasticity is using conventional liquid
When pressing formation, it is difficult to bear the excessive thinning at wave crest, and then be easy to appear destruction, yield rate is low.Therefore it is necessary to existing gold
The mode and device for belonging to the forming of bellows Fluid pressure are improved.
Summary of the invention
The present invention addresses the above problem, provides a kind of uniformity that can adjust forming postwave line thickness of pipe wall distribution,
It is effectively improved the phenomenon being obviously thinned at conventional forming process medium wave peak, the metal of metal bellows service performance can be obviously improved
Bellows fluid pressure forming device and method.
The technical scheme adopted by the invention is that: the metal bellows fluid pressure forming device includes the dynamic of parallel arrangement
Die holder plate and top clamping plate, are connected between top clamping plate and Bottom clamp plate by connecting column and connection frame, it is characterised in that: described
Bottom clamp plate drives towards movable die, the pressing mold being arranged in movable die and Bottom clamp plate is provided in the middle part of top clamping plate side
The telescopic end of dynamic device is connected；The top clamping plate is towards being provided with fixed mould, fixed mould in the middle part of Bottom clamp plate side
The fluid through-hole at middle part then adds unloading port to be connected with the fluid on top clamping plate；Between the movable die and fixed mould,
It is provided with the movable matrix component and forming matrix component of the interlaced arrangement of matrix, shapes matrix component and movable matrix component
Middle part arrange metal pipe billet to be formed, the both ends of metal pipe billet are connected with movable die and fixed mould respectively；And it is movable
Matrix component is connected with the telescopic end for the movable matrix driving device being arranged radially on connection frame along pipe, forming matrix component with
The telescopic end for the forming matrix driving device being arranged radially on connection frame along pipe is connected.
The movable matrix component is by arrangement symmetrical above and below and the identical two parts of structure are constituted, and each section includes matrix
Connecting shaft is provided with several semicircle movable matrixs in matrix connecting shaft；And the middle part of the matrix connecting shaft and it is described can
The telescopic end of dynamic model piece driving device is connected.To drive movable matrix component two-part respectively by movable matrix driving device
Semicircle movable matrix is along pipe radial motion, to control the deformation sequence of material between matrix.
The semicircle movable matrix is made of semicircular movable matrix main body, movable matrix main body arc-shaped edges side
Middle part is provided with mounting hole, and forming section I, the both ends point of movable matrix main body are provided in the middle part of movable matrix main body straight flange side
It is not provided with guide post evacuation gap.
The matrix connecting shaft is made of connection shaft body, is connected and is provided with several matrix mounting portions in shaft body, and
It connects in shaft body, the position between two adjacent matrix mounting portions, is provided with matrix band evacuation groove.
For the forming matrix component by being symmetrically arranged and the identical two parts of structure are constituted, each section includes pressing mold
Guide post, sliding is provided with several semicircle forming matrixs in pressing mold guide post；The end of the pressing mold guide post with it is described
The telescopic end for shaping matrix driving device is connected.To drive forming matrix component two parts respectively using forming matrix driving device
Semicircle forming matrix along pipe radial motion.
The semicircle forming matrix is made of semicircular forming matrix main body, forming matrix main body arc-shaped edges side
Middle part is provided with guide post jack, shapes and is provided with forming section II in the middle part of matrix main body straight flange side, and the two of forming matrix main body
End is respectively arranged with connecting shaft evacuation gap；Semicircle forming matrix is slidably arranged in pressing mold guide post by guide post jack.
The side of the forming section II of the semicircle forming matrix is provided with forming concave station.In order to metal pipe billet ripple
It ultimately forms.
The method for carrying out Fluid pressure forming using above-mentioned metal bellows fluid pressure forming device, including walk as follows
It is rapid:
Step 1: metal pipe billet to be formed to be placed on to the movable die and fixation of metal bellows fluid pressure forming device
Between pressing mold, and pipe both ends are sealed；Then, the movable matrix driving device and finishing die by being arranged on connection frame
Piece driving device drives movable matrix component and forming matrix component to metal pipe billet movement, molds, and locking die；Meanwhile
Between the movable matrix of semicircle of movable matrix component and the semicircle forming matrix of forming matrix component, be respectively set for
Adjust the gasket of spacing；
Step 2: adding the fluid through-hole of unloading port and fixed mould via the fluid of top clamping plate, applied to the inside of metal pipe billet
Add certain Fluid pressure load and unload, utilizes the forming section I of the semicircle movable matrix of movable matrix component, and forming matrix
Component semicircle shapes the common extruding of the forming section II of matrix, forms bimodal shape prima；
Step 3: the movable matrix component of the upper and lower two sides of metal pipe billet is driven by movable matrix driving device, respectively along pipe
Radially outward side is mobile, so that the movable matrix of the semicircle of movable matrix component is separated with metal pipe billet, and is convenient for movable die
The subsequent pressing to forming matrix component semicircle forming matrix；Then, apply certain Fluid pressure load, utilize forming matrix
Component semicircle shapes the independent extruding of the forming section II of matrix, forms unimodal shape prima；
Step 4: adjusting and keeping the Fluid pressure in metal pipe billet, work is driven by the pressing mold driving device on Bottom clamp plate
The axially disposed pressing mold guide post of dynamic pressure mould is moved to fixed mould direction, and then makes each semicircle for shaping matrix component
It forms shape matrix to contact with each other, and the extruding of the forming concave station using semicircle forming II side of matrix forming section, forms ripple；
Step 5: adding unloading port to unload Fluid pressure from the fluid of top clamping plate, later, is driven and lived using pressing mold driving device
Dynamic pressure mould is axially withdrawn to the initial position far from fixed mould；Metal pipe billet is driven by shaping matrix driving device again
The forming matrix component of arranged on left and right sides, along pipe, radially outward side is moved respectively；Take out the metal bellows after the completion of forming.
The step 2 is formed after bimodal shape prima, and all or part of gasket is removed, then is applied certain Fluid pressure and carried
Lotus and pressure maintaining, then, pressing mold driving device drive movable die certain distance axially movable, then unload, will be bimodal first
Wave pressure is flat.
Beneficial effects of the present invention: since the present invention is using the Bottom clamp plate and top clamping plate of parallel arrangement, Bottom clamp plate
Movable die is set towards the middle part of top clamping plate side, the pressing mold driving device being arranged in movable die and Bottom clamp plate is stretched
Contracting end is connected；Fixed mould is arranged in the middle part of top clamping plate towards Bottom clamp plate side, the fluid through-hole in the middle part of fixed mould with
Fluid on top clamping plate adds unloading port to be connected；Between movable die and fixed mould, the setting interlaced arrangement of matrix
Metal pipe billet is arranged at movable matrix component and forming matrix component, the middle part for shaping matrix component and movable matrix component；Movably
Matrix component is connected with along the movable matrix driving device telescopic end that pipe is arranged radially, and shapes matrix component and along pipe radial direction
The connected structure type of the forming matrix driving device telescopic end of setting, so its design is rationally, it is compact-sized, pass through But moving die
The substep combined type forming mode of piece component and forming matrix component, to control the deformation sequence of material between matrix, it may be assumed that in metal
It during bellows Fluid pressure shapes, is initially formed bimodal prima, re-forms unimodal prima, so that same prima bus
It is more uniform along generatrix direction material wall thickness in the case where length, it is effectively improved in conventional two-step method hydroforming mode, first
Walk the phenomenon being obviously thinned at unimodal prima forming process medium wave peak.The metal bellows fluid pressure forming device and method,
The uniformity that ripple thickness of pipe wall is distributed after shaping not only is improved, service performance and the service life of bellows are improved, moreover, helping
It shapes, has a extensive future in the bellows of the poor material of the plasticity such as titanium alloy, high temperature alloy.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
Fig. 2 is the internal structure cross-sectional view of Fig. 1.
Fig. 3 is that a kind of simplified structure of Fig. 1 removal connection frame, movable matrix driving device and forming matrix driving device is shown
It is intended to.
Fig. 4 is the internal structure cross-sectional view of Fig. 3.
Fig. 5 is deformed sections schematic diagram of the metal pipe billet when forming bimodal shape prima in Fig. 4.
Fig. 6 is that along pipe, radially outward side is moved respectively for the movable matrix components of the upper and lower two sides of metal pipe billet in Fig. 3
A kind of use state diagram.
Fig. 7 is the internal structure cross-sectional view of Fig. 6.
Fig. 8 is deformed sections schematic diagram of the metal pipe billet when forming unimodal shape prima in Fig. 7.
Fig. 9 is a kind of structural schematic diagram of the movable matrix component in Fig. 6.
Figure 10 is a kind of structural schematic diagram of the movable matrix of semicircle in Fig. 9.
Figure 11 is a kind of structural schematic diagram of the matrix connecting shaft in Fig. 9.
Figure 12 is a kind of structural schematic diagram of the forming matrix component in Fig. 6.
Figure 13 is a kind of structural schematic diagram of the semicircle forming matrix in Figure 12.
Figure 14 is the A direction view of Figure 13.
Figure 15 is that the pressing mold driving device in Fig. 6 drives movable die to the movement of fixed mould direction, forming matrix component
A kind of use state diagram that each semicircle forming matrix contacts with each other.
Figure 16 is the internal structure cross-sectional view of Figure 15.
Figure 17 is deformed sections schematic diagram of the metal pipe billet when forming ripple in Figure 16.
Figure 18 is that along pipe, radially outward side is moved respectively for the forming matrix component of the metal pipe billet arranged on left and right sides in Figure 15
A kind of use state diagram.
Number explanation in figure: 1 Bottom clamp plate, 2 movable dies, 3 movable matrix driving devices, 4 movable matrix components, 5 are determined
Die holder plate, 6 fixed moulds, 7 connecting columns, 8 forming matrix driving devices, 9 forming matrix components, 10 connection frames, the driving of 11 pressing molds
Device, 12 metal pipe billets, 13 pressing mold guide posts, 14 fluids add unloading port, 15 matrix connecting shafts, 16 semicircle movable matrixs, 17
Movable matrix main body, 18 mounting holes, 19 forming sections I, 20 guide posts evacuation gap, 21 connection shaft bodies, 22 matrix mounting portions, 23
Matrix band avoids groove, 24 semicircle forming matrixs, 25 forming matrix main bodys, 26 guide post jacks, 27 forming sections II, 28 connecting shafts
Avoid gap, 29 forming concave stations.
Specific embodiment
According to Fig. 1~18 specific structure that the present invention will be described in detail and method.The metal bellows Fluid pressure is at shape dress
Bottom clamp plate 1 and top clamping plate 5 including parallel arrangement are set, passes through several connecting columns between top clamping plate 5 and Bottom clamp plate 1
7 are connected with connection frame 10.Bottom clamp plate 1 is provided with towards the middle part of 5 side of top clamping plate for forming matrix component 9
The movable die 2 that semicircle forming matrix 24 is pressed；The pressing mold driving device being arranged in movable die 2 and Bottom clamp plate 1
11 telescopic end is connected.Top clamping plate 5 is then provided with fixed mould 6 towards the middle part of 1 side of Bottom clamp plate；Fixed mould 6
The fluid through-hole at middle part adds unloading port 14 to be connected with the fluid on top clamping plate 5.Between movable die 2 and fixed mould 6, if
It is equipped with the movable matrix component 4 and forming matrix component 9 of the interlaced arrangement of matrix, shapes matrix component 9 and movable matrix group
Metal pipe billet 12 to be formed is arranged at the middle part of part 4, and the both ends of metal pipe billet 12 respectively with movable die 2 and fixed mould 6
It is connected.
Movable matrix component 4 is by arrangement symmetrical above and below and the identical two parts of structure are constituted, and each section includes along pipe
The matrix connecting shaft 15 axially arranged, matrix connecting shaft 15 are made of connection shaft body 21, if being provided in connection shaft body 21
Dry matrix mounting portion 22, and connect in shaft body 21, the position between two adjacent matrix mounting portions 22, it is provided with use
Groove 23 is avoided in the matrix band cooperated with forming matrix component 9.Several matrix mounting portions 22 of matrix connecting shaft 15 are distinguished
It is provided with semicircle movable matrix 16.Semicircle movable matrix 16 is made of semicircular movable matrix main body 17, movable matrix
It is provided with mounting hole 18 in the middle part of 17 arc-shaped edges side of main body, is provided with forming section in the middle part of movable 17 straight flange side of matrix main body
I 19, the both ends of movable matrix main body 17 are respectively arranged with guide post evacuation gap 20.The matrix connecting shaft of movable matrix component 4
15 middle part is connected with the telescopic end for the movable matrix driving device 3 being arranged radially on connection frame 10 along pipe；And then pass through
Movable matrix driving device 3 drives the two-part semicircle movable matrix 16 of movable matrix component 4 along pipe radial motion respectively,
To control the deformation sequence of material between matrix.
For forming matrix component 9 by being symmetrically arranged and the identical two parts of structure are constituted, each section includes along pipe
The pressing mold guide post 13 axially arranged, sliding is provided with several semicircle forming matrixs 24 in pressing mold guide post 13.It is semicircle
Forming matrix 24 is made of semicircular forming matrix main body 25, is shaped to be provided in the middle part of 25 arc-shaped edges side of matrix main body and be led
Column jack 26 shapes and is provided with forming section II 27 in the middle part of 25 straight flange side of matrix main body, and the side of forming section II 27 is provided with
Convenient for the finally formed forming concave station 29 of 12 ripple of metal pipe billet；The both ends of forming matrix main body 25 are respectively arranged with connecting shaft and keep away
Allow gap 28.Semicircle forming matrix 24 is slidably arranged in pressing mold guide post 13 by guide post jack 26 respectively.Shape matrix
The end of the pressing mold guide post 13 of component 9 shapes the flexible of matrix driving device 8 along what pipe was arranged radially on connection frame 10
End is connected；To drive the two-part semicircle forming matrix of forming matrix component 9 respectively using forming matrix driving device 8
24 along pipe radial motion, in order to the taking-up of pipe after the extrusion molding of metal pipe billet 12, and forming.
The method for carrying out Fluid pressure forming using the metal bellows fluid pressure forming device:
Step 1: metal pipe billet 12 to be formed to be placed on to 2 He of movable die of metal bellows fluid pressure forming device
Between fixed mould 6, and pipe both ends are sealed；Then, the movable matrix driving device 3 by being arranged on connection frame 10
With forming matrix driving device 8, drive movable matrix component 4 and forming matrix component 9 respectively to the movement of metal pipe billet 12, progress
Molding, and locking die (as shown in Fig. 1,2 and Fig. 3,4).Meanwhile the movable matrix 16 of the semicircle of movable matrix component 4 with
It shapes between the semicircle forming matrix 24 of matrix component 9, the gasket for adjusting spacing is respectively set.
Step 2: adding the fluid through-hole of unloading port 14 and fixed mould 6 via the fluid of top clamping plate 5, to metal pipe billet
12 inside applies certain Fluid pressure load and unloads (Fluid pressure size, depending on setting for material type and bellows
Count size), it is semicircle using the forming section I 19 of the semicircle movable matrix 16 of movable matrix component 4, and forming matrix component 9
The common extruding of the forming section II 27 of matrix 24 is shaped, is formed bimodal shape prima (as shown in Figure 5).Formed bimodal shape prima it
Afterwards, all or part of gasket is removed, then applies certain Fluid pressure load and pressure maintaining；Then, pressing mold driving device 11, which drives, lives
The certain distance axially movable of dynamic pressure mould 2 then unloads；Bimodal prima is tentatively flattened (bimodal prima by being axially moved
Flattening, according to forming needs, it is convenient to omit).
Step 3: the movable matrix component 4 of the upper and lower two sides of metal pipe billet 12 is driven by movable matrix driving device 3, point
Along pipe, radially outward side is not moved to other than 9 outer circumference of forming matrix component of closure (as shown in Figure 6,7), so that movably
It is subsequent to forming matrix convenient for movable die 2 while the movable matrix 16 of the semicircle of matrix component 4 is separated with metal pipe billet 12
The pressing of the semicircle forming matrix 24 of component 9.Then, apply via fluid plus unloading port 14 to the inside of metal pipe billet 12 certain
Fluid pressure load is formed unimodal using the independent extruding of the forming section II 27 of the semicircle forming matrix 24 of forming matrix component 9
Shape prima (as shown in Figure 8).
Step 4: adjusting and keeping the Fluid pressure in metal pipe billet 12, and the increase amplitude of Fluid pressure is no more than step
The 10% of Fluid pressure in rapid three；Then, drive movable die 2 along axial cloth by the pressing mold driving device 11 on Bottom clamp plate 1
It is the pressing mold guide post 13 set, mobile to 6 direction of fixed mould, and then make each semicircle forming matrix for shaping matrix component 9
24 contact with each other (as shown in Figure 15,16), and utilize the forming concave station 29 of semicircle forming 24 forming section of matrix, II 27 side
It squeezes, is formed ripple (as shown in figure 17).
Step 5: adding unloading port 14 to unload Fluid pressure from the fluid of top clamping plate 5, later, is driven and filled using pressing mold
It is axially withdrawn to the initial position far from fixed mould 6 to set 11 drive movable dies 2；Pass through forming matrix driving device 8 again
The forming matrix component 9 of 12 arranged on left and right sides of metal pipe billet is driven, radially outward side is moved along pipe respectively；Forming is taken out to complete
Metal bellows (as shown in figure 18) afterwards., it is understood that forming matrix component 9 can also according to needs are specifically used
To be designed to the structure type taken out together along axial direction together with metal bellows.
Claims (9)
1. a kind of metal bellows fluid pressure forming device, Bottom clamp plate (1) and top clamping plate (5) including parallel arrangement,
It is connected between top clamping plate (5) and Bottom clamp plate (1) by connecting column (7) and connection frame (10), it is characterised in that: the dynamic model
Seat board (1) is towards being provided with movable die (2) in the middle part of top clamping plate (5) side, in movable die (2) and Bottom clamp plate (1)
The telescopic end of the pressing mold driving device (11) of setting is connected；The top clamping plate (5) is towards setting in the middle part of Bottom clamp plate (1) side
It is equipped with fixed mould (6), the fluid through-hole in the middle part of fixed mould (6) then adds unloading port (14) with the fluid on top clamping plate (5)
It is connected；Between the movable die (2) and fixed mould (6), it is provided with the movable matrix component of the interlaced arrangement of matrix
(4) and metal tube to be formed is arranged at forming matrix component (9), the middle part for shaping matrix component (9) and movable matrix component (4)
Base (12), the both ends of metal pipe billet (12) are connected with movable die (2) and fixed mould (6) respectively；And movable matrix component (4)
It is connected with the telescopic end for the movable matrix driving device (3) being arranged radially on connection frame (10) along pipe, shapes matrix component (9)
It is connected with the telescopic end for the forming matrix driving device (8) being arranged radially on connection frame (10) along pipe.
2. metal bellows fluid pressure forming device according to claim 1, it is characterised in that: the movable matrix group
Part (4) is by arrangement symmetrical above and below and the identical two parts of structure are constituted, and each section includes matrix connecting shaft (15), matrix connection
Several semicircle movable matrixs (16) are provided on axis (15)；And the middle part of the matrix connecting shaft (15) and the But moving die
The telescopic end of piece driving device (3) is connected.
3. metal bellows fluid pressure forming device according to claim 2, it is characterised in that: described semicircle movable
Matrix (16) is made of semicircular movable matrix main body (17), is provided in the middle part of movable matrix main body (17) arc-shaped edges side
Mounting hole (18) is provided with forming section I (19) in the middle part of movable matrix main body (17) straight flange side, movable matrix main body (17)
Both ends are respectively arranged with guide post evacuation gap (20).
4. metal bellows fluid pressure forming device according to claim 2, it is characterised in that: the matrix connecting shaft
(15) it is made of connection shaft body (21), is provided with several matrix mounting portions (22), and connecting shaft in connection shaft body (21)
Position in main body (21), between two adjacent matrix mounting portions (22) is provided with matrix band evacuation groove (23).
5. metal bellows fluid pressure forming device according to claim 1, it is characterised in that: the forming matrix group
For part (9) by being symmetrically arranged and the identical two parts of structure are constituted, each section includes pressing mold guide post (13), pressing mold guiding
Sliding is provided with several semicircle formings matrix (24) on column (13)；The end of the pressing mold guide post (13) and the forming
The telescopic end of matrix driving device (8) is connected.
6. metal bellows fluid pressure forming device according to claim 5, it is characterised in that: the semicircle forming
Matrix (24) is made of semicircular forming matrix main body (25), is shaped and is provided in the middle part of matrix main body (25) arc-shaped edges side
Guide post jack (26) shapes and is provided with forming section II (27) in the middle part of matrix main body (25) straight flange side, shapes matrix main body
(25) both ends are respectively arranged with connecting shaft evacuation gap (28)；Semicircle forming matrix (24) is slided by guide post jack (26)
It is arranged on pressing mold guide post (13).
7. metal bellows fluid pressure forming device according to claim 5, it is characterised in that: the semicircle forming
The side of the forming section II (27) of matrix (24) is provided with forming concave station (29).
8. the method that metal bellows fluid pressure forming device according to claim 1 carries out Fluid pressure forming, packet
Include following steps:
Step 1: metal pipe billet (12) to be formed to be placed on to the movable die of metal bellows fluid pressure forming device
(2) between fixed mould (6), and pipe both ends are sealed；Then, the movable matrix by being arranged on connection frame (10)
Driving device (3) and forming matrix driving device (8) drive movable matrix component (4) and forming matrix component (9) to metal tube
Base (12) is mobile, molds, and locking die；Meanwhile in the mould of the matrix of movable matrix component (4) and forming matrix component (9)
Between piece, the gasket for adjusting spacing is respectively set；
Step 2: adding the fluid through-hole of unloading port (14) and fixed mould (6) via the fluid of top clamping plate (5), to metal tube
The inside of base (12) applies certain Fluid pressure load and unloads, and utilizes movable matrix component (4) and forming matrix component (9)
Common extruding, formed bimodal shape prima；
Step 3: the movable matrix component (4) of the upper and lower two sides of metal pipe billet (12) is driven by movable matrix driving device (3),
Along pipe, radially outward side is moved respectively, so that movable matrix component (4) is separated with metal pipe billet (12), and is convenient for movable die
(2) the subsequent pressing to forming matrix component (9)；Then, apply certain Fluid pressure load, utilize forming matrix component (9)
Independent extruding, form unimodal shape prima；
Step 4: adjusting and keeping the Fluid pressure in metal pipe billet (12), pass through the pressing mold driving device on Bottom clamp plate (1)
(11) it is mobile to fixed mould (6) direction along axial direction to drive movable die (2), and then makes each mould for shaping matrix component (9)
Piece contacts with each other, and using the extruding of forming matrix component (9) each matrix, forms ripple；
Step 5: adding unloading port (14) to unload Fluid pressure from the fluid of top clamping plate (5), later, is driven and filled using pressing mold
Setting (11) drives movable die (2) axially withdrawn to the initial position far from fixed mould (6)；Pass through forming matrix driving again
Device (8) drives the forming matrix component (9) of metal pipe billet (12) arranged on left and right sides, and along pipe, radially outward side is moved respectively；It takes
Metal bellows after the completion of shaping out.
9. the method for metal bellows Fluid pressure forming according to claim 8, it is characterised in that: the step 2,
It is formed after bimodal shape prima, removes all or part of gasket, then apply certain Fluid pressure load and pressure maintaining, then, pressing mold
Driving device (11) drives movable die (2) certain distance axially movable, then unloads, bimodal prima is flattened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330102.4A CN109277445B (en) | 2018-11-09 | 2018-11-09 | Fluid pressure forming device and method for metal corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330102.4A CN109277445B (en) | 2018-11-09 | 2018-11-09 | Fluid pressure forming device and method for metal corrugated pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109277445A true CN109277445A (en) | 2019-01-29 |
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Cited By (2)
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| CN111496043A (en) * | 2020-04-14 | 2020-08-07 | 西安石油大学 | Combined hydraulic bulging die for manufacturing rectangular metal corrugated pipe |
| CN117358817A (en) * | 2023-12-07 | 2024-01-09 | 沈阳仪表科学研究院有限公司 | Plastic forming device and plastic forming method for metal corrugated pipe |
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