CN106270103A - A kind of internal high pressure forming die and using method thereof - Google Patents
A kind of internal high pressure forming die and using method thereof Download PDFInfo
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- CN106270103A CN106270103A CN201610871487.XA CN201610871487A CN106270103A CN 106270103 A CN106270103 A CN 106270103A CN 201610871487 A CN201610871487 A CN 201610871487A CN 106270103 A CN106270103 A CN 106270103A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
Abstract
A kind of internal high pressure forming die disclosed by the invention, including die holder, cover half, dynamic model, cope match-plate pattern group, lower bolster group, guide rail, slide, hydraulic drive mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, the upper and lower folding of dynamic model is arranged at above cover half, cope match-plate pattern group is located in the die cavity of dynamic model by guide post string, lower bolster group is located in the die cavity of cover half by guide post string, the die cavity for workpiece inner high voltage molding it is provided with between cope match-plate pattern group and lower bolster group, slide is slideably positioned on guide rail, slide along slide to drive the template of cope match-plate pattern group and lower bolster group along guide post displacement, hydraulic drive mechanism and hydraulic punching head are arranged on slide, hydraulic drive mechanism drives hydraulic punching head to coordinate with workpiece end in stretching into die cavity.Stroke of the hydraulic punching head of the present invention can complete the processing step of workpiece bulging and shaping, processing simplicity, and product quality is more preferable, and its using method is simple, it is simple to operation controls.
Description
Technical field
The present invention relates to Machining Technology field, particularly to a kind of internal high pressure forming die and using method thereof.
Background technology
Automobile exhaust muffler is used to one of critical component reducing automobile engine to exhaust noise, mainly by fall
Pulsation low, decay pressure at expulsion eliminates noise.Automobile exhaust muffler includes hush pipe component as shown in Figure 1, and this disappears
Sound tube component is reducing hollow pipe fitting, and key structural feature is the noise reduction convex closure that portion is provided with hollow in the tube, at the one of pipe fitting
End is provided with mouth of pipe convex tendon.
In existing technique, the general noise reduction convex closure part using inner high voltage molding mode to process above-mentioned pipe fitting, inner high voltage becomes
Type is also named shaped by fluid pressure or fluid power molding, is that one uses fluid as shaping medium, is flowed by pressure in controlling and material
Reach the material forming process of molding hollow part purpose.Existing internal high pressure forming die lacks due to the design of himself structure
Falling into, the pipe thickness causing the noise reduction convex closure position of pipe fitting is uneven, or the quality problems such as fold occurs in surface, after shaping also
Needing trimming that it is carried out shaping processing, manufacturing procedure is numerous and diverse, it is therefore necessary to a kind of inner high voltage Forming Quality of research and development is more
Internal high pressure forming die good, that manufacturing procedure is easy.Another problem is that existing internal high pressure forming die can not realize noise reduction
Convex closure and the molding simultaneously of mouth of pipe convex tendon, it is generally required to twice inner high voltage ability molding, thus processing technique is complicated, is not easy to operation
Control.
Summary of the invention
Present invention aims to defect and the deficiency of prior art, it is provided that a kind of internal high pressure forming die and making
By method, stroke of hydraulic punching head can complete the processing step of workpiece bulging and shaping, and processing simplicity, product quality is more
Good, its using method is simple, it is simple to operation controls.
For achieving the above object, the present invention is by the following technical solutions:
A kind of internal high pressure forming die, including die holder, cover half, dynamic model, cope match-plate pattern group, lower bolster group, guide rail, slide, liquid
Pressure drive mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, and the upper and lower folding of dynamic model is arranged at above cover half, on
Template group is located in the die cavity of dynamic model by guide post string, and lower bolster group is located in the die cavity of cover half by guide post string, upper mold
Being provided with the die cavity for workpiece inner high voltage molding between plate group and lower bolster group, slide is slideably positioned on guide rail, and slide is along leading
Rail slides to drive the template of cope match-plate pattern group and lower bolster group to be arranged at along guide post displacement, hydraulic drive mechanism and hydraulic punching head
On slide, hydraulic drive mechanism drives hydraulic punching head to coordinate with workpiece end in stretching into die cavity.
Wherein, cope match-plate pattern group and lower bolster group include the first template, the second template and the 3rd template, the first template respectively
And it is provided with the first die cavity of the noise reduction convex closure position inner high voltage molding for workpiece, the second template and the 3rd mould between the second template
The second die cavity of the mouth of pipe convex tendon position inner high voltage molding for workpiece it is provided with between plate.
Further, the first template side of dynamic model and cover half is provided with side plate, and the first template is fixing with this side plate to be connected, and the 3rd
It is connected by adapter sleeve is fixing between template with slide.
Further, it is equipped with reset bullet between the first template and the second template and between the second template and the 3rd template
Spring.Slide is provided with push pedal, and push pedal is provided with vertical guide runner, and cope match-plate pattern group connects the connection coordinated with this vertical guide runner
Block.Described die cavity is positioned at one end of side plate and is additionally provided with and stretches into the hydraulic punching head that this die cavity coordinates with workpiece end.
Wherein, hydraulic drive mechanism includes hydraulic cylinder, linkage and slider guide, and hydraulic punching head is fixedly connected on slider guide
On, slider guide is spacing to be slideably positioned on slide, and hydraulic cylinder is fixedly installed on slide, and the piston rod of hydraulic cylinder passes through connecting rod machine
Structure drives slider guide sliding on slide.
A kind of using method of internal high pressure forming die, including following operating procedure:
In S1, the described die cavity loaded by workpiece between cope match-plate pattern group and lower bolster group, close dynamic model；
S2, hydraulic drive mechanism drive hydraulic punching head closely to offset with workpiece end in stretching into die cavity, so that inside workpiece
Form closed cavity；
S3, by closed cavity from hydraulic punching head to inside workpiece inject highly pressurised liquid so that workpiece is in described die cavity
Bulging；
S4, in the Bulging Process of step S3, by driving means drive slide upwards template group/lower bolster group sidesway
Dynamic, so that the template of cope match-plate pattern group and lower bolster group synchronizes extrusion and displacement along guide post, carry out in Bulging Process for workpiece
Extruding feed supplement；
After the template of S5, cope match-plate pattern group and lower bolster group is pressed into place, added to the liquid of inside workpiece by hydraulic punching head
Pressure, so that shaping in the described die cavity that workpiece is between cope match-plate pattern group and lower bolster group；
S6, hydraulic drive mechanism drive hydraulic punching head to exit die cavity, drive slide to away from cope match-plate pattern by driving means
One side shifting of group/lower bolster group, opens dynamic model, takes out workpiece.
The invention have the benefit that
The present invention installs cope match-plate pattern group and lower bolster group in dynamic model and cover half respectively, between cope match-plate pattern group and lower bolster group
Being provided with the die cavity for workpiece inner high voltage molding, add man-hour, first loaded by workpiece in this die cavity, hydraulic drive mechanism drives hydraulic pressure
Drift closely offsets with workpiece end in stretching into die cavity, so that inside workpiece forms closed cavity, then by hydraulic punching head to work
Part is internal injects highly pressurised liquid, and workpiece is by pressure bulging in described die cavity of internal high pressure liquid, at workpiece Bulging Process
In, drive slide upwards template group/lower bolster group side shifting by driving means, so that cope match-plate pattern group and the template of lower bolster group
Synchronize extrusion and displacement along guide post, carry out feed supplement by the extrusion and displacement of template with the bulging position to workpiece, then pass through workpiece
The control of internal liquid pressure, keeps wall thickness in workpiece Bulging Process consistent, then when cope match-plate pattern group and the template of lower bolster group
After being pressed into place, i.e. described die cavity between cope match-plate pattern group with lower bolster group mates completely with the shape of finished workpart, passes through liquid
The pressure drift liquid pressing to inside workpiece, so that shaping in the described die cavity that workpiece is between cope match-plate pattern group and lower bolster group,
This reforming process can eliminate the fold that surface of the work occurs, it is ensured that workpiece quality, and retrogressing mould takes out workpiece.This inner high voltage becomes
Stroke of the hydraulic punching head of mould can complete the processing step of workpiece bulging and shaping, and processing simplicity, product quality is more
Good；And its using method is simple, it is simple to operation controls.
Accompanying drawing explanation
Fig. 1 is the structural representation of automobile silencing pipe；
Fig. 2 is the assembling structural representation of the present invention；
Fig. 3 is the plan structure schematic diagram of the present invention；
In figure: 1, die holder；2, cover half；3, dynamic model；4, guide rail；5, slide；6, hydraulic drive mechanism；7, hydraulic punching head；8、
Guide post；9, side plate；10, adapter sleeve；11, the first template；12, the second template；13, the 3rd template；61, slider guide；62, connecting rod
Mechanism；63, hydraulic cylinder.
Detailed description of the invention
The present invention is further illustrated below in conjunction with the accompanying drawings.
A kind of internal high pressure forming die as shown in Figure 1 to Figure 3, including die holder 1, cover half 2, dynamic model 3, cope match-plate pattern group, under
Template group, guide rail 4, slide 5, hydraulic drive mechanism 6 and hydraulic punching head 7, cover half 2 and guide rail 4 are fixedly installed on die holder 1, dynamic
Mould about 3 folding is arranged at above cover half 2, and cope match-plate pattern group is located in the die cavity of dynamic model 3 by guide post 8 string, and lower bolster group is led to
Cross guide post 8 string to be located in the die cavity of cover half 2, between cope match-plate pattern group and lower bolster group, be provided with the type for workpiece inner high voltage molding
Chamber, slide 5 is slideably positioned on guide rail 4, and slide 5 slides the template driving cope match-plate pattern group and lower bolster group along leading along guide rail 4
Being arranged on slide 5 to bar 8 displacement, hydraulic drive mechanism 6 and hydraulic punching head 7, hydraulic drive mechanism 6 drives hydraulic punching head 7 to stretch
Coordinate with workpiece end in entering die cavity.
Adding man-hour, first loaded by workpiece in this die cavity, hydraulic drive mechanism 6 drives hydraulic punching head 7 to stretch in die cavity and work
Part end closely offsets, so that inside workpiece forms closed cavity, then injects high pressure liquid by hydraulic punching head 7 to inside workpiece
Body, workpiece, by pressure bulging in described die cavity of internal high pressure liquid, in workpiece Bulging Process, is driven by driving means
Dynamic slide 5 upwards template group/lower bolster group side shifting, so that the template of cope match-plate pattern group and lower bolster group synchronizes to squeeze along guide post 8
Pressure displacement, carries out feed supplement by the extrusion and displacement of template with the bulging position to workpiece, then by inside workpiece fluid pressure
Control, keep wall thickness in workpiece Bulging Process consistent, then after the template of cope match-plate pattern group and lower bolster group is pressed into place, i.e. go up
Described die cavity between template group with lower bolster group mates completely with the shape of finished workpart, by hydraulic punching head 7 in workpiece
The liquid pressing in portion, so that shaping in the described die cavity that workpiece is between cope match-plate pattern group and lower bolster group, this reforming process is permissible
Eliminating the fold that surface of the work occurs, it is ensured that workpiece quality, retrogressing mould takes out workpiece.The hydraulic punch of this internal high pressure forming die
7 one times strokes can complete the processing step of workpiece bulging and shaping, and processing simplicity, product quality is more preferable；And it uses
Method is simple, it is simple to operation controls.
Wherein, cope match-plate pattern group and lower bolster group include the first template the 11, second template 12 and the 3rd template 13 respectively, the
The first die cavity of the noise reduction convex closure position inner high voltage molding for workpiece it is provided with, when first between one template 11 and the second template 12
When template 11 and the second template 12 fit tightly, the first die cavity is the shape of workpiece noise reduction convex closure, the second template 12 and the 3rd
The second die cavity of the mouth of pipe convex tendon position inner high voltage molding for workpiece it is provided with, when the second template 12 and the 3rd mould between template 13
When plate 13 fits tightly, the second die cavity is the shape of workpiece mouth of pipe convex tendon.Specifically, dynamic model 3 and the first template 11 of cover half 2
Side is provided with side plate 9, and the first template 11 is fixed with this side plate 9 and is connected, and the first template 11 maintains static, the 3rd template 13 and slide 5
Between connect by adapter sleeve 10 is fixing, the 3rd template 13 moves with adapter sleeve 10, the second template 12 on guide post 8 according to it
The stressing conditions dynamic displacement of both sides.When slide 5 moves, extruding the 3rd template 13 by adapter sleeve 10, the 3rd template 13 pushes away again
Dynamic second template 12 is to the first template 11 side displacement.In the present embodiment, described die cavity is positioned at one end of side plate 9 and is additionally provided with and stretches into this
The hydraulic punching head 7 coordinated with workpiece end in die cavity, workpiece two ends all utilize hydraulic punching head 7 to seal and position.
Further, it is all provided with between the first template 11 and the second template 12 and between the second template 12 and the 3rd template 13
Having back-moving spring, back-moving spring is automatically separated between template.Slide 5 is provided with push pedal, and push pedal is provided with vertical guide runner, on
Template group connects the contiguous block coordinated with this vertical guide runner, and contiguous block coordinates with the vertical spacing of guide runner, can make upper mold
All the time accurately it is directed at lower bolster group during plate group moves up and down with dynamic model 3 and in extrusion process, thus ensures upper mold
Plate group and the Tong Bu extruding under the drive of adapter sleeve 10 of lower bolster group, to guarantee Workpiece shaping quality.
Wherein, hydraulic drive mechanism 6 includes hydraulic cylinder 63, linkage 62 and slider guide 61, and hydraulic punching head 7 is fixing to be connected
On slider guide 61, slider guide 61 is spacing to be slideably positioned on slide 5, and hydraulic cylinder 63 is fixedly installed on slide 5, hydraulic cylinder 63
Piston rod drive slider guide 61 sliding on slide 5 by linkage 62.Glide to slide block at the position-limiting action of slide 5
Dynamic and consistent with the glide direction of hydraulic punching head 7 telescopic direction and slide 5 to the glide direction of slide block, linkage 62 is
Connecting rod, connecting rod two ends are hinged with the piston rod of slider guide 61 and hydraulic cylinder 63 respectively, the piston rod telescopic direction of hydraulic cylinder 63 with
The glide direction of slider guide 61 is vertical, uses the hydraulic drive mechanism 6 of this linkage 62 can be more beneficial for controlling workpiece bulging
During decrement, ensure the uniform feed supplement of workpiece, improve workpiece quality.
The using method of above-mentioned internal high pressure forming die, including following operating procedure:
In S1, the described die cavity loaded by workpiece between cope match-plate pattern group and lower bolster group, close dynamic model 3；
S2, hydraulic drive mechanism 6 drive hydraulic punching head 7 closely to offset with workpiece end in stretching into die cavity, so that in workpiece
Portion forms closed cavity；
S3, by closed cavity from hydraulic punching head 7 to inside workpiece inject highly pressurised liquid so that workpiece is in described die cavity
Bulging；
S4, in the Bulging Process of step S3, by driving means drive slide 5 upwards template group/lower bolster group sidesway
Dynamic, so that the template of cope match-plate pattern group and lower bolster group synchronizes extrusion and displacement along guide post 8, carry out in Bulging Process for workpiece
Extruding feed supplement；
After the template of S5, cope match-plate pattern group and lower bolster group is pressed into place, added to the liquid of inside workpiece by hydraulic punching head 7
Pressure, so that shaping in the described die cavity that workpiece is between cope match-plate pattern group and lower bolster group；
S6, hydraulic drive mechanism 6 drive hydraulic punching head 7 to exit die cavity, drive slide 5 to away from upper mold by driving means
One side shifting of plate group/lower bolster group, opens dynamic model 3, takes out workpiece.
The above is only the better embodiment of the present invention, thus all according to the structure described in present patent application scope,
The equivalence that feature and principle are done changes or modifies, in the range of being all included in present patent application.
Claims (8)
1. an internal high pressure forming die, it is characterised in that: include die holder, cover half, dynamic model, cope match-plate pattern group, lower bolster group, lead
Rail, slide, hydraulic drive mechanism and hydraulic punching head, cover half and guide rail are fixedly installed on die holder, and the upper and lower folding of dynamic model is arranged at
Above cover half, cope match-plate pattern group is located in the die cavity of dynamic model by guide post string, and lower bolster group is located at cover half by guide post string
In die cavity, being provided with the die cavity for workpiece inner high voltage molding between cope match-plate pattern group and lower bolster group, slide is slideably positioned in guide rail
On, slide along slide to drive the template of cope match-plate pattern group and lower bolster group along guide post displacement, hydraulic drive mechanism and liquid
Pressure drift is arranged on slide, and hydraulic drive mechanism drives hydraulic punching head to coordinate with workpiece end in stretching into die cavity.
A kind of internal high pressure forming die the most according to claim 1, it is characterised in that: cope match-plate pattern group and lower bolster group are divided equally
Do not include the first template, the second template and the 3rd template, be provided with the noise reduction for workpiece between the first template and the second template convex
First die cavity of bag position inner high voltage molding, is provided with in the mouth of pipe convex tendon position of workpiece between the second template and the 3rd template
Second die cavity of high-pressure molding.
A kind of internal high pressure forming die the most according to claim 2, it is characterised in that: dynamic model and the first template side of cover half
Being provided with side plate, the first template is fixing with this side plate to be connected, and is connected by adapter sleeve is fixing between the 3rd template and slide.
A kind of internal high pressure forming die the most according to claim 3, it is characterised in that: between the first template and the second template
And second be equipped with back-moving spring between template and the 3rd template.
A kind of internal high pressure forming die the most according to claim 3, it is characterised in that: slide is provided with push pedal, in push pedal
Being provided with vertical guide runner, cope match-plate pattern group connects the contiguous block coordinated with this vertical guide runner.
A kind of internal high pressure forming die the most according to claim 3, it is characterised in that: described die cavity is positioned at one end of side plate
It is additionally provided with in stretching into this die cavity the hydraulic punching head coordinated with workpiece end.
7. according to a kind of internal high pressure forming die described in claim 1-6 any one, it is characterised in that: hydraulic drive mechanism
Including hydraulic cylinder, linkage and slider guide, hydraulic punching head is fixedly connected on slider guide, and slider guide is spacing is slideably positioned in cunning
On seat, hydraulic cylinder is fixedly installed on slide, and the piston rod of hydraulic cylinder drives slider guide sliding on slide by linkage.
8. the using method of an internal high pressure forming die as claimed in claim 1, it is characterised in that include operating as follows step
Rapid:
In S1, the described die cavity loaded by workpiece between cope match-plate pattern group and lower bolster group, close dynamic model；
S2, hydraulic drive mechanism drive hydraulic punching head closely to offset with workpiece end in stretching into die cavity, so that inside workpiece is formed
Closed cavity；
S3, inject highly pressurised liquid by hydraulic punching head to the closed cavity of inside workpiece, so that workpiece bulging in described die cavity；
S4, in the Bulging Process of step S3, by driving means drive slide upwards template group/lower bolster group side shifting, with
The template making cope match-plate pattern group and lower bolster group synchronizes extrusion and displacement along guide post, carries out extruding for workpiece and mend in Bulging Process
Material；
After the template of S5, cope match-plate pattern group and lower bolster group is pressed into place, by hydraulic punching head to the liquid pressing of inside workpiece, with
Make shaping in the workpiece described die cavity between cope match-plate pattern group and lower bolster group；
S6, hydraulic drive mechanism drive hydraulic punching head exit die cavity, by driving means drive slide to away from cope match-plate pattern group/under
One side shifting of template group, opens dynamic model, takes out workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871487.XA CN106270103B (en) | 2016-09-30 | 2016-09-30 | A kind of internal high pressure forming die and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610871487.XA CN106270103B (en) | 2016-09-30 | 2016-09-30 | A kind of internal high pressure forming die and its application method |
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| CN106270103A true CN106270103A (en) | 2017-01-04 |
| CN106270103B CN106270103B (en) | 2018-06-26 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110883228A (en) * | 2019-12-02 | 2020-03-17 | 长春智乐机械制造有限公司 | Internal high-pressure forming die |
| CN110935779A (en) * | 2019-12-13 | 2020-03-31 | 哈尔滨工大海卓智能成形科技有限公司 | Pipe liquid-filling multidirectional extrusion forming device and method |
| CN111250636A (en) * | 2020-04-30 | 2020-06-09 | 宁波市沃瑞斯机械科技有限公司 | Fluctuation pressure regulating system for forming thread rib |
| CN111992612A (en) * | 2020-09-11 | 2020-11-27 | 北京理工大学深圳汽车研究院 | Electro-hydraulic forming device based on pipe side wall opening |
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| CN205183540U (en) * | 2015-12-14 | 2016-04-27 | 长春近江汽车零部件有限公司 | Port shaping and integrative mould of package that expands |
| CN206104634U (en) * | 2016-09-30 | 2017-04-19 | 宁波市沃瑞斯机械科技有限公司 | Interior high -pressure forming die |
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| KR20050114911A (en) * | 2004-06-02 | 2005-12-07 | 기아자동차주식회사 | Hydro forming device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110883228A (en) * | 2019-12-02 | 2020-03-17 | 长春智乐机械制造有限公司 | Internal high-pressure forming die |
| CN110935779A (en) * | 2019-12-13 | 2020-03-31 | 哈尔滨工大海卓智能成形科技有限公司 | Pipe liquid-filling multidirectional extrusion forming device and method |
| CN111250636A (en) * | 2020-04-30 | 2020-06-09 | 宁波市沃瑞斯机械科技有限公司 | Fluctuation pressure regulating system for forming thread rib |
| CN111992612A (en) * | 2020-09-11 | 2020-11-27 | 北京理工大学深圳汽车研究院 | Electro-hydraulic forming device based on pipe side wall opening |
| CN111992612B (en) * | 2020-09-11 | 2022-06-14 | 北京理工大学深圳汽车研究院 | Electro-hydraulic forming device based on pipe side wall hole opening |
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| Publication number | Publication date |
|---|---|
| CN106270103B (en) | 2018-06-26 |
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Effective date of registration: 20211102 Address after: 257000 room 2007, employment and entrepreneurship center, No. 290, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Xinding Management Consulting Co.,Ltd. Address before: 315500 room 310, No. 888, Zhongshan East Road, Yuelin street, Fenghua City, Ningbo City, Zhejiang Province Patentee before: NINGBO VORIAS MACHINERY TECHNOLOGY CO.,LTD. |