CN105478539B - Sheet material multiple spot progressive molding device - Google Patents
Sheet material multiple spot progressive molding device Download PDFInfo
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- CN105478539B CN105478539B CN201511004601.0A CN201511004601A CN105478539B CN 105478539 B CN105478539 B CN 105478539B CN 201511004601 A CN201511004601 A CN 201511004601A CN 105478539 B CN105478539 B CN 105478539B
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- mould bases
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- basic body
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- 239000000463 material Substances 0.000 title claims abstract description 63
- 238000000465 moulding Methods 0.000 title claims abstract description 18
- 230000000750 progressive effect Effects 0.000 title claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims abstract description 31
- 238000004826 seaming Methods 0.000 claims abstract description 24
- 238000009432 framing Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 6
- 230000009699 differential effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 7
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 14
- 238000007493 shaping process Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 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
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
-
- 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
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
- B21D5/0218—Length adjustment of the punch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
- B30B1/34—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention relates to a kind of sheet material multiple spot progressive molding device, it includes mould bases, some driving presser units and some tune shape support units, presser unit is driven to be arranged on the top plate of mould bases, each driving presser unit is made up of seaming chuck, driving basic body, spring, piston, driving hydraulic cylinder, seaming chuck is movably arranged on driving basic body bottom, and driving hydraulic cylinder is fixed on mould bases top plate；Shape support unit is adjusted to be arranged on the bottom plate of mould bases, each tune shape support unit is made up of push-down head, support basic body, spring, regulating bolt, supporting cylinder, and push-down head is movably arranged on regulating bolt top, and supporting cylinder is fixed on mould framing plate；Under driving hydraulic cylinder and supporting cylinder effect, the multiple spot progressive molding of sheet material between seaming chuck and push-down head is realized.The present invention is rational in infrastructure, by controlling sheet material pressure at both sides poor, realizes optimal forming effect, and sheet material forming precision is high, and surface quality is good.
Description
Technical field
The present invention relates to plate stamping field, specifically a kind of sheet material multiple spot progressive molding device.
Background technology
With domestic and international economic fast development, the industry such as pressure vessel, shipbuilding and Aero-Space is needed to three-dimensional sheet material
Ask increasing, meanwhile, the extensive application of novel high-strength sheet material also brings new problem to curve generating, most new
The formability of High-strength plate is poor, it is allowed to which deformation extent is low, strict to deformation path requirement, using traditional press-processing method
It is difficult to obtain excellent curved surface product.Research shows, applies different pressure in sheet material both sides and then realizes different deformation roads
Footpath, can effectively lift forming quality, improve the uniformity of deformation and help to lift forming limit.But this technological thought can only
Realized in hydroforming or this kind of fluid media (medium) forming technology of gas pressure compacting, formable narrow range, it is impossible to meet large-scale multiple
The production forming requirements of miscellaneous curved panel piece.In addition, in recent years multi-point forming and its application development quickly, multi-point forming technique is logical
Discrete type height of punch free structure profile surface is overregulated, is the great innovation to three-dimension curved surface sheet material traditional mode of production mode.
But the dot matrix of multi-point forming contacts impression caused by the contact conditions variation that can cause between mould and sheet material, creased easily
Problem so that the application of multi-point forming technique is restricted, domestic and foreign scholars are furtherd investigate to this expansion, are proposed many beneficial
Improved method.
CN102101363A proposes the multi-point formation apparatus of a kind of presser unit and support unit composition, and support unit is by liquid
Cylinder pressure back pressure effect clamps sheet material all the time in forming process.But the pressure that presser unit applies needs to load by hydraulic press
Device and electronic stroke adjust shape component, complicated, and sheet material forming order is determined by the height of regulating bolt, shaping
In be only capable of realizing that one-way hydraulic cylinder compresses sheet material, it is impossible to realize the pressure differential adjustment of sheet material both sides, it is difficult to obtain optimal shaping
Path.CN202037224U discloses a kind of liquid and replaces punch-pin, many foundation bodies adjust shapes be combined into cavity plate metal plate it is flexible into
Shape dress is standby, though improving craft flexibility degree to a certain extent, the fluid pressure of only sheet material punch-pin side is controllable, same nothing
Method realizes the step-less adjustment of the pressure differential of sheet material both sides.CN1864884A proposes a kind of sheet material based on viscous medium transfer force without mould
Multi-point formation apparatus, power transmission is uniform, and realized between sheet material and upper basic body it is seamless applying, but only from different viscosities
Medium, which could be realized, applies different pressure to sheet material both sides, and selection is cumbersome and operation is inconvenient.Basic body is not pressed from both sides in the technique
The effect of sheet material, the insufficient clamping force of resisting medium are held, equipment is still needed to by setting up flanging coil apparatus grip block material, and structure is multiple
It is miscellaneous, and substantially reduce availability ratio of the armor plate.CN1338367A propose it is a kind of by Liang Taotiao shapes mechanism realize multi-point die and
The device of multi-point press, is realized to drift displacement, the control of speed by hydraulic cylinder and reversal valve.But for saddle face, cone
Sheet material suspension area is very big during face etc. has the product of protruding parts, multi-point die；Multiple spot press device is complicated,
Control is complicated, require high, and cost is high.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of conjunction of structure in order to overcome the shortcomings of prior art presence
Reason, it is poor by adjustment and control sheet material pressure at both sides, optimal forming effect is realized, sheet material forming precision is high, and surface quality is good
Sheet material multiple spot progressive molding device.
The present invention solves the technical scheme that is used of above-mentioned technical problem：A kind of sheet material multiple spot progressive molding device, its
Including mould bases, some driving presser units and some tune shape support units, it is characterised in that：Some driving presser unit peaces
On the top plate of mould bases, each driving presser unit is by seaming chuck, driving basic body, spring, piston, driving hydraulic cylinder group
Into the seaming chuck is movably arranged on driving basic body bottom, and piston is connected with driving basic body, and spring is arranged on driving hydraulic pressure
In cylinder, driving hydraulic cylinder is fixed on mould bases top plate, and is connected with hydraulic control system；Some tune shape support units are installed
On the bottom plate of mould bases, each tune shape support unit is by push-down head, support basic body, spring, regulating bolt, supporting cylinder group
Into the push-down head is movably arranged on regulating bolt top, and regulating bolt is arranged in support basic body, and spring is arranged on support
In hydraulic cylinder, supporting cylinder is fixed on mould framing plate, and is connected with hydraulic control system；It is described it is each driving basic body and
Basic body is supported to be driven respectively by corresponding driving hydraulic cylinder and supporting cylinder, the pressure of each supporting cylinder is less than correspondence
Driving hydraulic cylinder pressure, under the pressure differential effect that driving hydraulic cylinder and supporting cylinder are provided, realize seaming chuck and under
The multiple spot progressive molding of sheet material between pressure head.
Guide plate and lower guide plate are additionally provided with the mould bases, upper guide plate is arranged on the top plate of mould bases, lower to be oriented to
Plate is arranged on the bottom plate of mould bases, and each piston of correspondence is provided with pilot hole on upper guide plate and lower guide plate.Piston can be along guiding
The axis in hole moves up and down.
A hydraulic circuit is provided with the top plate and bottom plate of the mould bases, driving hydraulic cylinder and supporting cylinder pass through liquid respectively
Force feed road is connected with hydraulic control system.
Described seaming chuck and push-down head is hemi-spherical indenter, and half is respectively equipped with driving basic body and regulating bolt
Ball recess, is fixed with multiple permanent magnets in groove, attracts seaming chuck and push-down head in hemispherical groove by magnetic force,
And freely rotate and swing around the centre of sphere.
The hemispherical groove center being provided with the push-down head in center hole, regulating bolt is provided with hexagon adjusting hole.
So, by center hole on push-down head, it is inserted into using die nut in hexagon adjusting hole and regulating bolt is adjusted.
The present invention use above-mentioned composition structure, can complete independently sheet material forming, carried without using forcing press single-candidate is additional
Put.And itself has hydraulic system, step-less adjustment can be carried out to sheet material pressure at both sides, carry out multiple spot progressive molding, realize shaping
Path is optimal, so as to improve Forming Limit of Sheet Metals.Compared with prior art, present invention has the advantages that：Need not in forming process
Flange fixing installation provides Normal Constraint；All the time there are stabilization, uniform normal pressure to act on sheet material in forming process, can effectively press down
Panel wrinkles；Mould bases sheet is as load-bearing frame and itself is equipped with hydraulic system, loads and fills without using forcing press etc. during shaping
Pressure is put, can complete independently sheet material forming；Pressure in the hydraulic cylinder of sheet material both sides can be controlled respectively, thus can be to driving hydraulic pressure
The pressure differential of cylinder and supporting cylinder carries out step-less adjustment, under conditions of ensureing that sheet material is clamped and deformed, with minimum pressure
Shaping, it is to avoid unnecessary energy loss；Main stretching strain direction is constant during sheet deformation and strain rate is constant, can be most
The position being easily formed deforms, and forming path meets minimum plastic work principle, therefore drip molding Strain Distribution is extremely uniform,
Forming Limit of Sheet Metals is substantially increased, surface quality is guaranteed；In forming process, each basic body can be according to stress condition
Real time kinematics, it is thus possible to realize flexible forming to the full extent, it is adaptable to three-dimension curved surface sheet material forming.
Brief description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is present invention composition structural representation.
Fig. 2 is the schematic diagram of the invention in stroke end.
Fig. 3 is the structural representation of mould bases in the present invention.
Fig. 4 is push-down head and regulating bolt attachment structure schematic diagram in the present invention.
Fig. 5 is Fig. 4 top view.
Fig. 6 is hydraulic control system schematic diagram of the present invention.
Label in figure is：1. driving hydraulic cylinder, 2. pistons, 3. push-down heads, 4. regulating bolts, 5. support basic bodies, 6.
Supporting cylinder, 7. springs, 8. pistons, 9. sheet materials, 10. seaming chucks, 11. driving basic bodies, 12. mould bases, 13. springs.121.
Top plate, 12. pilot holes, 123. hydraulic circuits, 124. bottom plates, 125. hydraulic joints, 126. pilot holes, 127. lower guide plates,
128. on guide plate, 129. hydraulic circuits, 1210. hydraulic joints.31. center hole, 32. permanent magnets, the adjustment of 33. hexagons
Hole.
Embodiment
As can be seen that a kind of sheet material multiple spot progressive molding device, it includes mould bases 12, some drives from Fig. 1, Fig. 2, Fig. 3
Dynamic presser unit and some tune shape support units etc..Some driving presser units are arranged on the top plate 121 of mould bases 12, often
One driving presser unit is made up of seaming chuck 10, driving basic body 11, spring 7, piston 8, driving hydraulic cylinder 1, the seaming chuck
10 are movably arranged on driving basic body 11 bottom, and piston 8 is connected with driving basic body 11, and spring 8 is arranged on driving hydraulic cylinder 1
It is interior, upward support force is formed to piston 2.Driving hydraulic cylinder 1 is fixed on mould bases top plate 121, and is connected with hydraulic control system
Connect.Some tune shape support units are arranged on the bottom plate 124 of mould bases 12, and each tune shape support unit is by push-down head 3, support
Basic body 5, spring 7, regulating bolt 4, supporting cylinder 6 are constituted, and the push-down head 3 is movably arranged on the top of regulating bolt 4, are adjusted
Save bolt 4 to be arranged in support basic body 5, can adjust and support the height after the combination of basic body 5, spring 7 is arranged on support
In hydraulic cylinder 6, supporting cylinder 6 is fixed on mould framing plate 124, and is connected with hydraulic control system.Each driving base
Body and support basic body are driven by corresponding driving hydraulic cylinder 1 and supporting cylinder 6 respectively, the pressure of each supporting cylinder 6
Power is less than the pressure of corresponding driving hydraulic cylinder 1, the pressure differential that whole device is provided in driving hydraulic cylinder 1 and supporting cylinder 6
Under effect, driving presser unit and tune shape support unit entire pressurisation are descending, realize sheet material 9 between seaming chuck 10 and push-down head 3
Multiple spot progressive molding.
It can also be seen that being connected through a screw thread and transmitting load between support basic body 5 and regulating bolt 4 from Fig. 1, Fig. 2
Lotus, its height is adjusted by the rotation of regulating bolt 4, so that the stroke of each basic body unit is adjusted, support basic body 5
The enveloping surface that end is constituted is target shape face shape.
It can also be seen that sheet material 9 is clamped between seaming chuck 10 and push-down head 3 from Fig. 1, Fig. 2, driving hydraulic cylinder 1 is applied
The pressure for adding to driver element is applied to the pressure of shape adjusting unit higher than supporting cylinder 6, and descending of driver element actively makees
With, and then promote push-down head 3 and regulating bolt 4 to move downward, make hydraulic circuit of the liquid in supporting cylinder 6 through bottom
123 and hydraulic joint 125 discharged by the proportioning valve of hydraulic system, the pressure in supporting cylinder 6 produces all regulating bolts 4
Raw upward thrust, forms the Normal Constraint to sheet material 9.
From figure 3, it can be seen that the mould bases 12 is provided with upper guide plate 128 and lower guide plate 127, upper guide plate 128
On the top plate 121 of mould bases, lower guide plate 127 is arranged on the bottom plate 124 of mould bases, right on upper guide plate and lower guide plate
Each piston is answered to be provided with pilot hole 126.Guiding is provided for the operation of piston.Piston can move up and down along the axis of pilot hole.Institute
State and a hydraulic circuit 129,123 is additionally provided with the top plate 121 and bottom plate 124 of mould bases 12, and corresponding hydraulic joint 1210,125.
The oilhole of driving hydraulic cylinder 1 or supporting cylinder 6 is connected with the hydraulic circuit 129 on top or the hydraulic circuit 123 of bottom respectively.
Driving hydraulic cylinder and supporting cylinder are connected by hydraulic circuit with hydraulic control system respectively.
Described seaming chuck 10 and push-down head 3 is hemi-spherical indenter, in driving basic body 11 and regulating bolt 4 respectively
Provided with hemispherical groove, multiple permanent magnets 32 are fixed with groove, attract upper pressure 10 half with push-down head 3 by magnetic force
In ball recess, and freely rotate and swing around the centre of sphere.As shown in Figure 4, Figure 5.Specifically it is described as follows by taking push-down head as an example：It is described
Push-down head 3 is connected by the magnetic force of magnet 32 with the base that regulating bolt 4 is provided with, and can freely be rotated around the centre of sphere of push-down head 3.
In forming process, push-down head 3 can be rotated with the deformation of sheet material 9, remained the plane contact with sheet material 9, added
The contact area of push-down head 3 and sheet material 9, it is to avoid impression and corrugated generation.For the push-down head in regulating bolt 4
3, the hemispherical groove center in regulating bolt 4 offers and is provided with center circle on hexagon adjusting hole 33, hemispherical push-down head 3
Hole 31, can be inserted into hexagon adjusting hole 33 using die nut by the circular hole and regulating bolt 4 is adjusted.
To adapt to different sheet material parameter and curve form, the division numbers and arrangement mode of basic body driver element can be with
Design, adjustment, change as needed.Furthermore it is also possible to according to the thickness of shaped sheet and material property adjustment proportioning valve setting
Stress control supporting cylinder 6 discharge opeing pressure, and then control push-down head support unit to the Normal Constraint power of sheet material 9, liquid
The principle of pressure control system is as shown in Figure 6.Hydraulic control system belongs to prior art, repeats no more.
The present invention the course of work be：It is first according to intend the position of profile surface Adjusting Shape regulating bolt 4, makes push-down head
3 enveloping surfaces formed are target surface, and then sheet material 9 be placed into the upper surface of push-down head 3；It is filled with into supporting cylinder 6
Liquid, makes piston 8 promote push-down head 3 up, sheet material 9 is clamped between push-down head 3 and seaming chuck 10；To driving hydraulic cylinder 1
Liquid is filled with, the pressure for providing driving hydraulic cylinder 1 is higher than the pressure that supporting cylinder 6 is provided, in the presence of pressure differential, living
Plug 2 promotes the descending pressed sheet 9 of seaming chuck 10, and forces push-down head 3 and regulating bolt 4 descending, by the liquid in supporting cylinder 6
Hydraulic circuit 123 and hydraulic joint 125 of the body through bottom are discharged by the proportioning valve of hydraulic control system again, sheet deformation order
The deformation extent in each region is depended entirely on, the area preference deformation most easily deformed by that analogy, is realized to blank gradually
Enter shaping.Now, the crushed element of sheet material 9 and not deformed part are in the clamping of basic body driver element and support unit about
Shu Zhong, the pressure of the fluid pressure that this restraining force is depended in supporting cylinder 6, i.e. proportioning valve setting；With driving hydraulic cylinder 1
Progressively promotion seaming chuck 10 is descending, and the deformed region of sheet material 9 is incrementally increased, when all support basic bodies are forced into bottom dead centre,
The upper surface of push-down head 3 is combined into the final shaping form of curved surface, under the collective effect of seaming chuck 10, and sheet material 9 is deformed into
For the shape of product finally needed.After shaping terminates, driving hydraulic cylinder 1 and the discharge opeing of supporting cylinder 6, seaming chuck 10 is in spring 13
Drive under move upwards, regulating bolt 4 and push-down head 3 fall under spring 7 and Action of Gravity Field, take out compacting complete plate
Material drip molding.
Mould bases of the present invention can adjust each with complete independently Multi-point Forming Process according to the curve form for intending shaping
The position of regulating bolt 4, driving presser unit and tune shape support unit are all pressed by hydraulic control.
The present invention is used in above-mentioned composition structure, forming process without flange fixing installation offer Normal Constraint；In forming process
All the time there are stabilization, uniform normal pressure to act on sheet material, can effectively suppress sheet material corrugation；Mould bases sheet as load-bearing frame and
Itself is equipped with hydraulic system, is pressed during shaping without using loading devices such as forcing presses, can complete independently sheet material forming；Sheet material two
Pressure in the hydraulic cylinder of side can be controlled respectively, thus can carry out stepless-adjustment to driving hydraulic cylinder and the pressure differential of supporting cylinder
Section, under conditions of ensureing that sheet material is clamped and deformed, with minimum pressure forming, it is to avoid unnecessary energy loss；Sheet material becomes
Main stretching strain direction is constant during shape and strain rate is constant, can be deformed at the position for being easiest to shaping, forming path
Meet minimum plastic work principle, therefore drip molding Strain Distribution is extremely uniform, substantially increases Forming Limit of Sheet Metals, surface quality
It is guaranteed；In forming process, each basic body can be according to stress condition real time kinematics, it is thus possible to realize to the full extent
Flexible forming.
Claims (3)
1. a kind of sheet material multiple spot progressive molding device, it includes mould bases, some driving presser units and some tune shape support units,
It is characterized in that：Some driving presser units are arranged on the top plate of mould bases, and each driving presser unit is by seaming chuck, drive
Dynamic basic body, spring, piston, driving hydraulic cylinder composition, the seaming chuck are movably arranged on driving basic body bottom, and piston is with driving
Dynamic basic body connection, spring is arranged in driving hydraulic cylinder, and driving hydraulic cylinder is fixed on mould bases top plate, and with hydraulic control system
System connection；Some tune shape support units are arranged on the bottom plate of mould bases, and each tune shape support unit is by push-down head, branch support group
Body, spring, regulating bolt, supporting cylinder composition, the push-down head are movably arranged on regulating bolt top, regulating bolt peace
Mounted in support basic body on, spring be arranged on supporting cylinder in, supporting cylinder is fixed on mould framing plate, and with hydraulic pressure control
System connection processed；Each driving basic body and support basic body are driven by corresponding driving hydraulic cylinder and supporting cylinder respectively
Dynamic, the pressure of each supporting cylinder is less than the pressure of corresponding driving hydraulic cylinder, is carried in driving hydraulic cylinder with supporting cylinder
Under the pressure differential effect of confession, the multiple spot progressive molding of sheet material between seaming chuck and push-down head is realized；It is additionally provided with the mould bases
Guide plate and lower guide plate, upper guide plate are arranged on the top plate of mould bases, and lower guide plate is arranged on the bottom plate of mould bases, upper to be oriented to
The each piston of correspondence is provided with pilot hole on plate and lower guide plate；A hydraulic circuit is provided with the top plate and bottom plate of the mould bases, is driven
Hydrodynamic cylinder pressure and supporting cylinder are connected by hydraulic circuit with hydraulic control system respectively.
2. sheet material multiple spot progressive molding device according to claim 1, it is characterised in that：Described seaming chuck and push-down head
It is hemi-spherical indenter, is respectively equipped with hemispherical groove in driving basic body and regulating bolt, is fixed with groove multiple
Permanent magnet, seaming chuck and push-down head by magnetic force attracted freely to rotate and swing in hemispherical groove, and around its centre of sphere.
3. sheet material multiple spot progressive molding device according to claim 2, it is characterised in that：Center is provided with the push-down head
Hemispherical groove center in circular hole, regulating bolt is provided with hexagon adjusting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004601.0A CN105478539B (en) | 2015-12-29 | 2015-12-29 | Sheet material multiple spot progressive molding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511004601.0A CN105478539B (en) | 2015-12-29 | 2015-12-29 | Sheet material multiple spot progressive molding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105478539A CN105478539A (en) | 2016-04-13 |
| CN105478539B true CN105478539B (en) | 2017-09-15 |
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ID=55666012
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511004601.0A Expired - Fee Related CN105478539B (en) | 2015-12-29 | 2015-12-29 | Sheet material multiple spot progressive molding device |
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| CN (1) | CN105478539B (en) |
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