CN106311856A - Hydraulic forming die and method for manufacturing complex panel component through hydraulic forming die - Google Patents
Hydraulic forming die and method for manufacturing complex panel component through hydraulic forming die Download PDFInfo
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- CN106311856A CN106311856A CN201610886394.4A CN201610886394A CN106311856A CN 106311856 A CN106311856 A CN 106311856A CN 201610886394 A CN201610886394 A CN 201610886394A CN 106311856 A CN106311856 A CN 106311856A
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- Prior art keywords
- die
- mold
- cavity
- mould
- die body
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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
- B21D26/021—Deforming sheet bodies
- B21D26/031—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
- B21D26/021—Deforming sheet bodies
- B21D26/027—Means for controlling fluid parameters, e.g. pressure or temperature
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
- Press Drives And Press Lines (AREA)
Abstract
A hydraulic forming die comprises an upper die body and a lower die body. The lower die body is a mold die body. The upper die body is an empty die body. An exhaust hole is formed in the bottom of a lower die cavity. An upper die cavity is provided with an oil inlet hole and an oil outlet hole. A sealing ring is arranged between the upper die cavity and the lower die cavity. An upper main die body and a lower main die body are locked through a locking bolt. A method for manufacturing a complex panel component through the hydraulic forming die comprises the steps that firstly, simulated analysis is conducted; secondly, charging and die assembly pre-tightening are conducted; thirdly, press locking is conducted; fourthly, compressed liquid is injected, and pressurizing is gradually conducted; fifthly, pressure maintaining is conducted; sixthly, pressure releasing is conducted, and the compressed liquid is discharged; and seventhly, die sinking is conduced, and the component is taken out. The die is simple in structure, short in design period and low in manufacturing cost. The middle procedures for manufacturing the complex panel component through the method are few, manpower and material resources are saved, the product thinning rate is low, and the wall thickness is uniform; the material forming extremity is high, the forming quality is good, precision is high, the bearing capability is high, and residual stress is low; and the problems that the complex panel component is prone to cracking and deformation due to drawing, and wrinkling happens to the edge pressing position are solved, and the hydraulic forming die and the method are particularly suitable for complex drawing structural pieces formed at a time.
Description
Technical field
The present invention relates to a kind of mould and the method manufacturing complicated plate material parts with it, particularly a kind of hydroforming mould
Tool and the method manufacturing complicated plate material parts with it.
Background technology
Manufacturing industry is frequently run onto little, the complicated shape sheet material parts of varying dimensions of batch, manufactures this type component
Traditional method or employing process for stamping shape, or take manual metal plate forming method；Use manual metal plate forming method, cost
Low, but the cycle is oversize, and quality is not easy to meet requirement；Use process for stamping to shape and there is also following problem:
1. complex procedures, difficulty is big, cost is high: manufacture and design and the debugging of mould need plenty of time and manpower and materials, are pressed into
One part, needs multiple working procedure to combine, and the combination of many molds, multiple step just can strike out qualified parts, each mistake of punching press
Journey is required for special mould and produces, and some part also needs to follow-up welding, and cutting etc. just can machine, mould structure
Complexity, design cycle length, cost height；
2. during stamping, the extruding between part and mould and plastic deformation so that part rigidity and intensity subtract
Low, the most wrinkling, rupture；In order to improve disadvantages described above, in production practices, rely primarily on the experience of designer, by instead
Multiple die trial and repair a die, adjusting process parameter realizes, difficult quality guarantee.
Summary of the invention
It is an object of the invention to provide a kind of hydraulic forming mold and the method manufacturing complicated plate material parts with it, with gram
Take the deficiency that above-mentioned prior art exists.
The present invention adopts the technical scheme that: a kind of hydraulic forming mold, including upper die and lower die, described lower mold is type
Mould, upper mold is empty mould, and described lower mold includes lower mold body and is opened in the lower mode cavity in the middle part of lower mold body, and described lower mode cavity is with to be produced
Die corresponding to plate parts shape, set steam vent bottom lower mode cavity, in the lower mold body of lower mode cavity surrounding, have lower lock
Tight screw and lower dowel hole；Described upper mold include upper die body and be opened in the upper cavity in the middle part of upper die body, described upper cavity be with
The mouth-to-mouth empty die cavity of lower mode cavity, is provided with the mounting groove for filling sealing ring around upper cavity die cavity mouth periphery, sets in upper cavity
There is fuel feed hole and the oil outlet leading to upper die body top, on the upper die body of upper cavity surrounding, have upper locking screw holes and upper fixed
Position pin-and-hole, the position of described upper locking screw holes and upper dowel hole respectively with the lower locking screw holes of lower mold body and lower dowel hole pair
Should.
Its further technical scheme is: described upper die and lower die use die steel material to make, described cope match-plate pattern two
Side is provided with upper mold handle, and described lower bolster both sides are provided with lower mold handle.
Further: described fuel feed hole and oil outlet are conical with the connecting portion of external oil pipe.
It another solution is that a kind of method that hydraulic forming mold manufactures complicated plate material parts, including following step
Rapid:
S1: simulation analysis, analyzes maximum deformation quantity and each manufacturing parameter following that plate material parts can reach: press during shaping
Lubricating coefficient between the pressure of contracting liquid, sheet material and upper mold and sheet material and lower mold, sheet material laminating curring time, rebound degree with return
Dwell time corresponding to bullet rate, liquid load path；
Described load path includes:
(1) straight line loads, i.e. the slope such as hydraulic pressure value loads；
(2) constant load, i.e. loading parameters are specified；
(3) step-loaded, i.e. hydraulic pressure value load with certain numerical value sudden change；
S2: open upper and lower mould, loads sealing ring in mounting groove, is placed on by the sheet material being slightly smaller in size than mould upper and lower mould cross section
Between lower mold and upper mold, matched moulds also passes through the locking screw holes of upper and lower mould by upper and lower mould pretension with clamping screw；
S3: use special pressure machine that upper and lower mould is carried out matched moulds, locked further by upper and lower mould matched moulds, checks that steam vent guarantees to lead to
Freely；
S4: manually supercharging equipment injects compressed liquid, and the pressure in gradually supercharging makes injection upper cavity from upper mold oil-in
Contracting fluid pressure is gradually increased, and forces sheet material to be fitted to the i.e. die of lower mode cavity:
S41: take repeatedly continuous, Slow loading during filling compressed liquid；
S42: each supercharging 2～4MPa during supercharging, the force value of compressed liquid when finally making chamber pressure reach to shape described in S1；
S43: air between sheet material and die during laminating, gets rid of from the steam vent of female bottom；
S5: pressurize: after reaching laminating curring time described in S1, continue dwell time pressurize as described in S1；
S6: pressure release, carries out pressure release by hydraulic circuit, is then opened by upper mold oil-out, discharges upper cavity from upper mold oil-out
Indoor hydraulic oil；
S7: unclamp clamping screw, removes upper and lower mould pretension, die sinking, takes out plate material parts after shaping.
Owing to using technique scheme, compared with conventional stamping method, the one hydraulic forming mold of the present invention and use
Its method manufacturing complicated plate material parts has the advantages that
1. the present invention uses Hydroforming to manufacture complicated plate material parts, the technique using repeatedly slowly, loading continuously liquid,
Utilizing special forcing press to pressurize, be controlled liquid medium by hydraulic control system, pressure adjustable saves, and material becomes
The shape limit is high, and formation of parts reduction is low, uniform wall thickness, and forming quality is good, solves complicated sheet material constitutional detail drawing and easily opens
Split the problems such as yielding and flanging position fold；
2. can abandon the Alternative production procedures such as traditional many combined plates bending, punching press, blanking, resilience holding by this method, subtract
Few intermediate step, use manpower and material resources sparingly cost, is particularly suited for once-forming complicated shape and complicated deep-drawing structure part, even
The part that conventional ones technique cannot shape can be manufactured；
3. making the thin shell accessory of complex outline profile by this legal system, it is only necessary to make the half (die) of one set of die, mould has
Having versatility, unlike material, the blank of different-thickness can use same secondary mould, mould structure is simple, and the design cycle is short, system
Make low cost；
4., owing to replacing punch to transmit load and realize sheet forming with highly pressurised liquid, it is remarkably improved part forming quality and becomes
Shape performance, part has light weight, good rigidly, dimensional accuracy is high, bearing capacity is strong, residual stress is low and surface quality is good etc. excellent
Point；
The most additionally have the advantage that
(1) it is circular cone owing to having the connecting portion of fuel feed hole and oil outlet, fuel feed hole and oil outlet and external oil pipe in upper mold
Shape, is completely embedded, and can prevent liquid from leaking；Separately can be by the hydraulic pressure of oilhole regulation upper mold intracavity liquid；
(2) upper and lower mould leaves mould connection locking screw holes, when carrying out upper and lower mould matched moulds, can lead in the case of not having pressure mechanism
Cross bolt and connect locking；
(3) lower mold reserves steam vent, and this steam vent can discharge the gas in plate and cavity in process of production, it is to avoid this gas
Body, in the case of pressure increases, affects design of part shape；
(4) upper and lower mould is provided with the position guiding pin hole for installing position guiding pin, it is simple to guide when matched moulds, accurate matched moulds para-position.
Complicated plate material parts is manufactured to the one hydraulic forming mold of the present invention and with it below in conjunction with the accompanying drawings with embodiment
The technical characteristic of method be described further.
Accompanying drawing explanation
Fig. 1～Fig. 4 is the one hydraulic forming mold upper die structure schematic diagram of the present invention:
Fig. 1 is for looking up stereoeffect, and Fig. 2 is top perspective effect, and Fig. 3 is 180 ° of vertical views (removing upper mold handle) of upset, and Fig. 4 is
The A-A sectional view of Fig. 3；
Fig. 5～Fig. 6 is one hydraulic forming mold lower die structure schematic diagram (stereoeffect) of the present invention:
Fig. 5 top perspective, Fig. 6 looks up solid；
Fig. 7 is ring structure schematic diagram (stereoeffect)；
Fig. 8 is position guiding pin structural representation (stereoeffect)；
Fig. 9 is upper mold, sealing ring, upper mold and plate material parts broken away view；
1 upper mold, 11 cope match-plate patterns, 12 upper cavities, locking screw holes on 13, dowel hole on 14,15 sealing ring peaces
Tankage, 16 fuel feed holes, 17 oil outlets, 18 upper mold handles；
2 lower molds, 21 lower bolsters, 22 lower mode cavities, 23 times locking screw holes, 24 times dowel holes, 25 steam vents,
26 lower mold handles；
3 position guiding pins, 4 sealing rings, 5 plate material parts.
Detailed description of the invention
Embodiment one
A kind of hydraulic forming mold, including upper mold 1 and lower mold 2, described lower mold is pattern, and upper mold is empty mould, and described lower mold includes
Lower mold body 21 and be opened in the lower mode cavity 22 in the middle part of lower mold body, described lower mode cavity is corresponding with plate parts shape to be produced recessed
Mould (lower mold inner chamber be designed to required for the profile of part produced), sets steam vent 25, around lower mode cavity bottom lower mode cavity
Lower locking screw holes 23 and lower dowel hole 24 is had in the lower mold body of surrounding；Described upper mold 1 includes upper die body 11 and is opened in upper mold
Upper cavity 12 in the middle part of body, described upper cavity is empty die cavity mouth-to-mouth with lower mode cavity, is provided with around upper cavity die cavity mouth periphery
For filling the mounting groove 15 of sealing ring, it is provided with fuel feed hole 16 and the oil outlet 17 leading to upper die body top in upper cavity, around upper
Locking screw holes 13 and upper dowel hole 14, described upper locking screw holes and upper dowel hole is had on the upper die body of die cavity surrounding
Position is corresponding with the lower locking screw holes of lower mold body and lower dowel hole respectively.
Described upper die and lower die use die steel material to make, and described cope match-plate pattern both sides are provided with upper mold handle, described under
Template both sides are provided with lower mold handle.Described fuel feed hole and oil outlet are conical with the connecting portion of external oil pipe.
Embodiment two
A kind of hydraulic forming mold manufactures the method for complicated plate material parts, comprises the steps:
S1: simulation analysis, analyzes maximum deformation quantity and each manufacturing parameter following that plate material parts can reach: press during shaping
Lubricating coefficient between the pressure of contracting liquid, sheet material and upper mold and sheet material and lower mold, sheet material laminating curring time, rebound degree with return
Dwell time corresponding to bullet rate, liquid load path；
Described load path includes:
(1) straight line loads, i.e. the slope such as hydraulic pressure value loads；
(2) constant load, i.e. loading parameters are specified；
(3) step-loaded, i.e. hydraulic pressure value load with certain numerical value sudden change；
S2: open upper and lower mould, loads sealing ring in mounting groove, is placed on by the sheet material being slightly smaller in size than mould upper and lower mould cross section
Between lower mold and upper mold, matched moulds also passes through the locking screw holes of upper and lower mould by upper and lower mould pretension with clamping screw；
S3: use special pressure machine that upper and lower mould is carried out matched moulds, locked further by upper and lower mould matched moulds, checks that steam vent guarantees to lead to
Freely；
S4: manually supercharging equipment injects compressed liquid, and the pressure in gradually supercharging makes injection upper cavity from upper mold oil-in
Contracting fluid pressure is gradually increased, and forces sheet material to be fitted to the i.e. die of lower mode cavity:
S41: take repeatedly continuous, Slow loading during filling compressed liquid；
S42: each supercharging 2～4MPa during supercharging, the force value of compressed liquid when finally making chamber pressure reach to shape described in S1；
S43: air between sheet material and die during laminating, gets rid of from the steam vent of female bottom；
S5: pressurize: after reaching laminating curring time described in S1, continue dwell time pressurize as described in S1；
S6: pressure release, carries out pressure release by hydraulic circuit, is then opened by upper mold oil-out, discharges upper cavity from upper mold oil-out
Indoor hydraulic oil；
S7: unclamp clamping screw, removes upper and lower mould pretension, die sinking, takes out plate material parts after shaping.
Operation principle:
Lower mode cavity is designed to the profile of required manufactured parts, during hydraulic expanding type, and the high pressure that sheet material is added by upper mold
Liquid pressing, gradually deformation laminating lower mode cavity, form the product of the most required manufactured parts consistent with lower mode cavity shape.
Note
1. about the pressure of chamber:
The pressure value that plate material parts sets is by the material of sheet material, and the thickness of sheet material determines, according to experiment, the ordinary steel of thick 1mm
Panel material, stamping pressure is 70MPa；
2. about curring time:
Laminating process typically at several seconds to a few minutes, specifically different because of design of part, curring time is different, actual production
In, laminating process time is typically based on simulation result optimum and operates, and the curring time i.e. determined with emulation is made reference and refers to
Lead；
3. about the dwell time:
Dwell time primarily to reduce sheet material resilience after forming, this time regard experiment material, sheet metal thickness and；In reality
In the operation of border, the dwell time determines according to sheet material rebound degree, and simulation result shows, when sheet material resilience is big, the dwell time should be appropriate
Increase.
Claims (4)
1. a hydraulic forming mold, including upper mold (1) and lower mold (2), it is characterised in that: described lower mold is pattern, and upper mold is
Empty mould, described lower mold includes lower mold body (21) and is opened in the lower mode cavity (22) in the middle part of lower mold body, and described lower mode cavity is with to be produced
Die corresponding to plate parts shape, set steam vent (25) bottom lower mode cavity, have in the lower mold body of lower mode cavity surrounding
Lower locking screw holes (23) and lower dowel hole (24)；
Described upper mold (1) includes upper die body (11) and is opened in the upper cavity (12) in the middle part of upper die body, and described upper cavity is and lower mold
The mouth-to-mouth empty die cavity in chamber, is provided with the mounting groove (15) for filling sealing ring around upper cavity die cavity mouth periphery, sets in upper cavity
There is fuel feed hole (16) and the oil outlet (17) leading to upper die body top, on the upper die body of upper cavity surrounding, have upper locking screw
Hole (13) and upper dowel hole (14), the position of described upper locking screw holes and upper dowel hole respectively with the lower locking screw of lower mold body
Hole is corresponding with lower dowel hole.
A kind of hydraulic forming mold the most according to claim 1, it is characterised in that: described upper die and lower die use mould steel
Material is made, and described cope match-plate pattern both sides are provided with upper mold handle, and described lower bolster both sides are provided with lower mold handle.
A kind of hydraulic forming mold the most according to claim 2, it is characterised in that: described fuel feed hole and oil outlet are with outside
The connecting portion of oil pipe is cone.
4. the method manufacturing complicated plate material parts with hydraulic forming mold, it is characterised in that: comprise the steps:
S1: simulation analysis, analyzes maximum deformation quantity and each manufacturing parameter following that plate material parts can reach: press during shaping
Lubricating coefficient between the pressure of contracting liquid, sheet material and upper mold and sheet material and lower mold, sheet material laminating curring time, rebound degree with return
Dwell time corresponding to bullet rate, liquid load path；
Described load path includes:
(1) straight line loads, i.e. the slope such as hydraulic pressure value loads；
(2) constant load, i.e. loading parameters are specified；
(3) step-loaded, i.e. hydraulic pressure value load with certain numerical value sudden change；
S2: open upper and lower mould, loads sealing ring in mounting groove, is placed on by the sheet material being slightly smaller in size than mould upper and lower mould cross section
Between lower mold and upper mold, matched moulds also passes through the locking screw holes of upper and lower mould by upper and lower mould pretension with clamping screw；
S3: use special pressure machine that upper and lower mould is carried out matched moulds, locked further by upper and lower mould matched moulds, checks that steam vent guarantees to lead to
Freely；
S4: manually supercharging equipment injects compressed liquid, and the pressure in gradually supercharging makes injection upper cavity from upper mold oil-in
Contracting fluid pressure is gradually increased, and forces sheet material to be fitted to the i.e. die of lower mode cavity:
S41: take repeatedly continuous, Slow loading during filling compressed liquid；
S42: each supercharging 2～4MPa during supercharging, the force value of compressed liquid when finally making chamber pressure reach to shape described in S1；
S43: air between sheet material and die during laminating, gets rid of from the steam vent of female bottom；
S5: pressurize: after reaching laminating curring time described in S1, continue dwell time pressurize as described in S1；
S6: pressure release, carries out pressure release by hydraulic circuit, is then opened by upper mold oil-out, discharges upper cavity from upper mold oil-out
Indoor hydraulic oil；
S7: unclamp clamping screw, removes upper and lower mould pretension, die sinking, takes out plate material parts after shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886394.4A CN106311856B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic forming mold and the method for manufacturing complicated plate material parts with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886394.4A CN106311856B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic forming mold and the method for manufacturing complicated plate material parts with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311856A true CN106311856A (en) | 2017-01-11 |
| CN106311856B CN106311856B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610886394.4A Expired - Fee Related CN106311856B (en) | 2016-10-10 | 2016-10-10 | A kind of hydraulic forming mold and the method for manufacturing complicated plate material parts with it |
Country Status (1)
| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297441A (en) * | 2017-07-04 | 2017-10-27 | 西安飞机工业（集团）有限责任公司 | A kind of shaping dies and manufacturing process for closing box-like sheet metal component |
| CN110193545A (en) * | 2019-05-30 | 2019-09-03 | 南京加特源热能科技有限公司 | A kind of heat dissipation liquid cooling plate and its processing method |
| CN110394394A (en) * | 2018-04-25 | 2019-11-01 | 成都飞机工业（集团）有限责任公司 | A kind of semicanal part forming mold |
| CN113909391A (en) * | 2021-09-29 | 2022-01-11 | 浙江尔格科技股份有限公司 | Expansion joint tool and process for inner pipe and outer pipe of cooler for seawater |
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|---|---|---|---|---|
| CN107297441A (en) * | 2017-07-04 | 2017-10-27 | 西安飞机工业（集团）有限责任公司 | A kind of shaping dies and manufacturing process for closing box-like sheet metal component |
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| CN110394394A (en) * | 2018-04-25 | 2019-11-01 | 成都飞机工业（集团）有限责任公司 | A kind of semicanal part forming mold |
| CN110193545A (en) * | 2019-05-30 | 2019-09-03 | 南京加特源热能科技有限公司 | A kind of heat dissipation liquid cooling plate and its processing method |
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| CN113909391A (en) * | 2021-09-29 | 2022-01-11 | 浙江尔格科技股份有限公司 | Expansion joint tool and process for inner pipe and outer pipe of cooler for seawater |
| CN113909391B (en) * | 2021-09-29 | 2024-04-02 | 浙江尔格科技股份有限公司 | Expansion joint tool and technology for inner pipe and outer pipe of seawater cooler |
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| Publication number | Publication date |
|---|---|
| CN106311856B (en) | 2019-01-22 |
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