CN106111814A - Drawing die - Google Patents
Drawing die Download PDFInfo
- Publication number
- CN106111814A CN106111814A CN201610650080.4A CN201610650080A CN106111814A CN 106111814 A CN106111814 A CN 106111814A CN 201610650080 A CN201610650080 A CN 201610650080A CN 106111814 A CN106111814 A CN 106111814A
- Authority
- CN
- China
- Prior art keywords
- die
- hydraulic cylinder
- blank holder
- drawing die
- order
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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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
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/20—Deep-drawing
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention provides a kind of drawing die, the blank holder that including the upper die and lower die in order to form die cavity, is arranged in this lower mold, in order to the upper bolster that upper mold is arranged on press ram, in order to the die shoe that lower mold is arranged on press bench, also include being arranged between die shoe and press bench, in order to the hydraulic system of regulating and controlling effect pressure-pad-force on blank holder.By hydraulic system, the pressure-pad-force acted in forming process on plate is regulated and controled, it is possible to be precisely controlled to shape technological parameter, be conducive to improving drawing die and workpiece is carried out forming effect when drawing processes.
Description
Technical field
The present invention relates to a kind of drawing die.
Background technology
Draw forming is a kind of important sheet metal forming method, along with modern product part shape becomes increasingly complex,
Precision is more and more higher, requires more and more higher, for complex parts draw forming, traditional pressure to the technology of drawing forming process
Flange often applies identical pressure-pad-force on plate, but in large complicated drawn component (such as automobile panel) forming process
The flowing of each position metal material is inconsistent, if all applying identical pressure-pad-force around plate, has been easily caused
A little positions are wrinkling, some broken.In order to meet complex parts drawing needs it is necessary to make the pressure-pad-force of mould can be according to reality
Border needs to be adjusted, the pressure-pad-force size that when controlling drawing deformation, blank holder is applied on plate.
The patent of Patent No. CN201010548548.1 discloses the pressure variable edge force of a kind of mechanical and hydraulic linkage control and draws
Prolong mould, including overlaminate flange and laminated flange, be provided with two hydraulic pumps at laminated flange lower surface, the work of this hydraulic pump
Stopper rod is connected with laminated flange by screw thread, embed between laminated flange upper surface and overlaminate flange lower surface several and
The little fore-set of both interference fits, overlaminate flange is made up of the insert structure including straight flange insert and arm of angle insert.In pressure
When power machine carries out drawing to plate, the active force of hydraulic pump passes to laminated flange by piston rod, then by little fore-set power
Passing in each insert of overlaminate flange, the pressure-pad-force that when thus adjusting drawing deformation, blank holder is applied on plate is big
Little.But, the structure of this technical scheme is complicated and the kiss gating-feeder inaccuracy that is applied on plate.
Summary of the invention
In view of this, present invention is primarily targeted at, it is provided that a kind of drawing die that can accurately control pressure-pad-force.
The invention provides a kind of drawing die, including the upper die and lower die in order to form die cavity, be arranged in this lower mold
Blank holder, in order to the upper bolster that described upper mold is arranged on press ram, in order to described lower mold is arranged on forcing press
Die shoe on workbench, also includes being arranged between described die shoe and described press bench, exists in order to regulating and controlling effect
The hydraulic system of the pressure-pad-force on described blank holder.
Use this structure, by setting up hydraulic system between the die shoe of former drawing die and press bench
The pressure-pad-force acted on plate it is adjusted and controls, it is possible to being precisely controlled to shape technological parameter, and then adjustment is formed
Draw-bead structure, be conducive to improving the forming effect of bead made by drawing die；Meanwhile, utilize hydraulic system permissible
Adjust pressure-pad-force in real time, can preferably affecting laws research experiment to forming parameters, be conducive to preferably studying
INTERACTION PROBLEMS between flanging and bead in understanding forming process.It addition, aforementioned hydraulic system can directly be set up at grand master pattern
Between die shoe and the press bench of tool, it is not necessary to original mould is carried out bigger structure of modification, and suitability is strong.
Preferably, described hydraulic system includes that one is set in parallel between described die shoe and described press bench
Hydraulic cylinder case and be arranged on the multiple hydraulic cylinders on this hydraulic cylinder case, the end of the piston rod of these multiple hydraulic cylinders and described pressure
The bottom of flange connects.
Preferably, what the plurality of hydraulic cylinder was positioned at below described blank holder and along described blank holder is circumferentially distributed.
Use this structure, due to circumferentially distributed along blank holder of the plurality of hydraulic cylinder, it is possible to ensure blank holder stress
Uniformly, and then improve the forming effect of bead made by drawing die.
Preferably, the side surface of described hydraulic cylinder case has opening outwardly and the plurality of hydraulic cylinder is the most
Individual groove, the main body of described hydraulic cylinder is placed in corresponding groove.
Use this structure, the structure of described hydraulic system can be simplified, compress its shared installing space, make drawing
The topology layout of mould is more reasonable, and structure is compacter.
Preferably, described die shoe is provided with vertically run through setting and the plurality of hydraulic cylinder one_to_one corresponding
Multiple push rods, be provided with in the bottom of described blank holder and connect with it and transition the most multiple with the plurality of push rod
Bar, the top of the piston rod of described hydraulic cylinder passes sequentially through described push rod, transiting rod is connected with described blank holder.
This structure, the top of the piston rod of described hydraulic cylinder is used to pass sequentially through described push rod, transiting rod and described pressure
Flange connects, be directly connected to blank holder with piston rod compared with, on the one hand can reduce the requirement to piston rod intensity, the opposing party
Face can buffer with the reciprocating motion of the piston rod of hydraulic cylinder.
Preferably, the top board of described hydraulic cylinder case is provided with and runs through its adapter sleeve arranged, the top of described piston rod
It is connected by this adapter sleeve with the bottom of push rod.
Use this structure, alignment when can ensure that piston rod is connected with push rod by described adapter sleeve.
Preferably, the top board of described hydraulic cylinder case has reinforcement, is opened in order to configure the installing hole of described adapter sleeve
On this reinforcement.
Use this structure, it is possible to the intensity of the guarantee hydraulic cylinder case volume top board in order to offer installing hole, and then ensure liquid
Cylinder pressure steadiness is set.
Preferably, described upper mold is die, and described lower mold is punch.
Preferably, described die cavity keeps consistent, in order to shape this automobile panel with the shape specification of automobile panel.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of drawing die；
Fig. 2 is the sectional view of drawing die；
Fig. 3 is the sectional front view of drawing die shown in Fig. 2；
Fig. 4 is the schematic diagram of die shoe；
Fig. 5 is the exploded view of dividing plate and hydraulic cylinder case.
Detailed description of the invention
Referring to Fig. 1～5, the detailed description of the invention of drawing die of the present invention is described in detail.
As shown in Fig. 1～Fig. 5, drawing die of the present invention mainly includes being sequentially overlapped the upper of connection setting from top to bottom
Dividing plate 11, upper bolster 12, die (composition upper mold) 13, blank holder 21, punch (composition lower mold) 22, die shoe 23, dividing plate 24, liquid
Cylinder pressure case 25, lower clapboard 26, wherein, upper spacer 11 is arranged on press ram 31, and die 13 is arranged on upper bolster 12；Under
Dividing plate 26 is arranged on press bench 32, and punch 22 and blank holder 21 are arranged on die shoe 23, it addition, at die shoe 23
And it is additionally provided with wearing plate between blank holder 21；Drawing die is under matched moulds state, and die 13 is interlocked with punch 22, by both
The region limited constitutes die cavity, and in the present embodiment, this die cavity keeps consistent, in order to become with the shape specification of automobile panel
Shape automobile panel.It is typically provided with draw-bead structure in the sidepiece binder district (i.e. between die 13 and blank holder 21) of die 13.
In drawing die work process, punch 22 and the parts such as blank holder 21 and die shoe 23 generally maintain static, press ram
31 drive die 13 to move back and forth on direction in matched moulds/die sinking relative to punch 22 by upper bolster 12.
As it is shown in figure 5, hydraulic cylinder case 25 is in the most flat box like, it be arranged between die shoe 23 and lower clapboard 26 and with this two
The parallel setting of person, is provided with opening 12 grooves 251 outwardly, at this groove 251 on the side surface of hydraulic cylinder case 25
The first installing hole 252 is offered, at upper wall (the i.e. hydraulic cylinder case 25 of this groove 251 on lower wall (i.e. the base plate of hydraulic cylinder case 25)
Top board) on be typically provided with reinforcement, the upper wall of groove 251 offers at reinforcement relative with the first installing hole 252
The second installing hole (composition installing hole) 253 arranged, is provided with the top board running through hydraulic cylinder case 25 in this second installing hole 253
The adapter sleeve 42 arranged.Receive respectively equipped with 12 hydraulic pressure arranged with they one_to_one corresponding in aforementioned 12 grooves 251
Cylinder 4, as shown in Figures 2 and 3, the bottom of hydraulic cylinder 4 is arranged on lower clapboard 26, its remainder (i.e. the main body of hydraulic cylinder 4)
Being housed in groove 251, the top of the piston rod 41 of hydraulic cylinder 4 is placed in adapter sleeve 42 by lower section.As shown in Figure 1 and Figure 5, front
State 12 hydraulic cylinders 4 to be positioned at below blank holder 21 and circumferentially distributed along it.
As shown in Figures 2 and 3, die shoe 23 is provided with vertically run through setting and 12 hydraulic cylinders 4 one by one
12 corresponding push rods 231, offer in the bottom of blank holder 21 and aforementioned 12 push rod 231 one_to_one corresponding and opening down
12 blind holes, in each blind hole, be provided with transiting rod 211.The bottom of push rod 231 is placed in adapter sleeve 42 by top, this top
The top of bar 231 is connected with the bottom of transiting rod 211, and the top of transiting rod 211 is connected on blank holder 21, thus makes hydraulic cylinder
The top of the piston rod 41 of 4 passes sequentially through adapter sleeve 42, push rod 231, transiting rod 211 are connected with blank holder 21.By aforementioned hydraulic
25,12 hydraulic cylinders 4 of cylinder case constitute hydraulic system of the present invention, and these 12 hydraulic cylinders 4 are by the control of drawing die
System controls, in order to regulate control action pressure-pad-force on blank holder 21 in Auto Panel Forming Processes.
Combine said structure referring to Figure of description 1～5 to describe, the operation principle to drawing die of the present invention
It is briefly described.
Placing the plate being used for making automobile panel on blank holder 21, die 13 is edge under press ram 31 drives
Matched moulds direction to move down, then die 13 contacts with blank holder 21, this die 13 be pressed on punch 22 by plate, complete
Matched moulds；
Upper bolster 12 drives die 13 to move downward, and when die 13 contacts with plate, external hydraulic cylinder 4 starts band dynamic pressure
Flange 21 moves upward, and die 13 drives plate to move downward with blank holder 21 Guan Bi, and the most external hydraulic cylinder 4 keeps constant pressure
Power, thus the shaping that guarantee is plate provides stable pressure-pad-force, until workpiece is fully formed end；
Carrying out the demoulding after workpiece draw forming, upper bolster 12 drives die 13 to move upward, when moving to home position,
External hydraulic cylinder 4 drives blank holder 21 to move upward, and now blank holder 21 drives Forming Workpiece to move upward, and carries out discharging.
Drawing die of the present invention is mainly used in automobile panel draw forming, by the die shoe at former drawing die
Set up hydraulic system between 23 and press bench 32 pressure-pad-force acting on plate is adjusted and controls, it is possible to
It is precisely controlled to shape technological parameter, and then adjusts the draw-bead structure formed, be conducive to improving drawing made by drawing die
Prolong the forming effect of muscle；Meanwhile, utilize hydraulic system can adjust pressure-pad-force in real time, can preferably shadow to forming parameters
Ringing rule research experiment, in the most preferably research understanding forming process, flanging is asked with the interphase interaction of bead
Topic.It addition, aforementioned hydraulic system can directly be set up between the die shoe 23 and press bench 32 of original mould, it is not necessary to former
Mould carries out bigger structure of modification, and suitability is strong.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Such as, in the above-described embodiments, the top of the piston rod 41 of hydraulic cylinder 4 pass sequentially through adapter sleeve 42, push rod 231,
Transiting rod 211 is connected with blank holder 21, but is not limited to this, it is possible to omit adapter sleeve 42, push rod 231 and transiting rod 211,
Blank holder 21 is entered after sequentially passing through the upper cover of hydraulic cylinder 4, die shoe 23 after being extended by the piston rod 41 of hydraulic cylinder 4 from bottom to top
In the blind hole of bottom, it is achieved in the connection of piston rod 41 and blank holder 21.
Claims (9)
1. a drawing die, the blank holder (21) including the upper die and lower die in order to form die cavity, being arranged in this lower mold, use
With the upper bolster (12) described upper mold being arranged on press ram (31), in order to described lower mold to be arranged on forcing press work
Die shoe (23) on platform (32), it is characterised in that also include being arranged on described die shoe (23) and described press bench
(32) between, in order to the hydraulic system of regulating and controlling effect pressure-pad-force on described blank holder (21).
Drawing die the most according to claim 1, it is characterised in that described hydraulic system include one be set in parallel in described
Hydraulic cylinder case (25) between die shoe (23) and described press bench (32) and being arranged on this hydraulic cylinder case (25)
Multiple hydraulic cylinders (4), the end of the piston rod (41) of these multiple hydraulic cylinders (4) is connected with the bottom of described blank holder (21).
Drawing die the most according to claim 2, it is characterised in that the plurality of hydraulic cylinder (4) is positioned at described blank holder
(21) lower section circumferentially distributed along described blank holder (21).
4. according to the drawing die described in Claims 2 or 3, it is characterised in that the side surface of described hydraulic cylinder case (25) has
Opening outwardly and the plurality of hydraulic cylinder (4) the most multiple groove (251), the main body of described hydraulic cylinder (4) be placed in
In the groove (251) of its correspondence.
Drawing die the most according to claim 4, it is characterised in that be provided with vertically on described die shoe (23)
Run through setting and the plurality of hydraulic cylinder (4) the most multiple push rod (231), set in the bottom of described blank holder (21)
Have connect with it and with the plurality of push rod (231) the most multiple transiting rod (211),
The top of the piston rod (41) of described hydraulic cylinder (4) passes sequentially through described push rod (231), transiting rod (211) and described pressure
Flange (21) connects.
Drawing die the most according to claim 5, it is characterised in that be provided with on the top board of described hydraulic cylinder case (25) and pass through
Wearing its adapter sleeve (42) arranged, the top of described piston rod (41) is connected by this adapter sleeve (42) with the bottom of push rod (231)
Connect.
Drawing die the most according to claim 6, it is characterised in that the top board of described hydraulic cylinder case (25) has reinforcement
Muscle, is opened on this reinforcement in order to configure the installing hole (253) of described adapter sleeve (42).
Drawing die the most according to claim 1, it is characterised in that described upper mold is die (13), described lower mold is convex
Mould (22).
Drawing die the most according to claim 1, it is characterised in that the shape specification of described die cavity and automobile panel is protected
Hold consistent, in order to shape this automobile panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650080.4A CN106111814B (en) | 2016-08-09 | 2016-08-09 | Drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610650080.4A CN106111814B (en) | 2016-08-09 | 2016-08-09 | Drawing die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106111814A true CN106111814A (en) | 2016-11-16 |
| CN106111814B CN106111814B (en) | 2019-02-01 |
Family
ID=57257617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610650080.4A Expired - Fee Related CN106111814B (en) | 2016-08-09 | 2016-08-09 | Drawing die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106111814B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203485A (en) * | 2020-02-28 | 2020-05-29 | 深圳新顿科技有限公司 | High-strength aluminum alloy hot forming drawing feeding control method, blank holder and die |
| CN112338035A (en) * | 2020-10-29 | 2021-02-09 | 燕山大学 | Hot drawing forming device and method capable of controlling blank holder force |
Citations (12)
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|---|---|---|---|---|
| US3509785A (en) * | 1966-11-04 | 1970-05-05 | Western Electric Co | Methods of deep drawing solid plastic material |
| GB1308641A (en) * | 1970-01-27 | 1973-02-21 | Shoreham Precision Tools Ltd | Presses |
| CN1434282A (en) * | 2003-03-07 | 2003-08-06 | 江苏大学 | Edge pressing force and punching speed changeable single moving sheet hydraulic test machine |
| JP2006272456A (en) * | 2005-03-30 | 2006-10-12 | Hitachi Zosen Fukui Corp | Die cushion device |
| CN201070654Y (en) * | 2007-08-16 | 2008-06-11 | 浙江科技学院 | Deep-drawing mold based on variable blank holder force |
| CN101530882A (en) * | 2009-04-13 | 2009-09-16 | 重庆工学院 | Mould with alterable brake bead resistance |
| CN102029325A (en) * | 2010-11-18 | 2011-04-27 | 江苏大学 | Drawing mold with variable blank holder force with hydraulic linkage control by machine |
| CN103402667A (en) * | 2011-02-28 | 2013-11-20 | 新日铁住金株式会社 | Load applying device, press-molding die, and press-molding method |
| CN203649170U (en) * | 2013-11-19 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Drawing die |
| CN103949522A (en) * | 2014-04-24 | 2014-07-30 | 上海理工大学 | Design method of blank holder and edge pressing device |
| CN203751080U (en) * | 2014-04-08 | 2014-08-06 | 青岛金黄海集装箱有限公司 | Hydraulic machine for improving blank holding force |
| CN206083602U (en) * | 2016-08-09 | 2017-04-12 | 机械科学研究总院 | Drawing mold |
-
2016
- 2016-08-09 CN CN201610650080.4A patent/CN106111814B/en not_active Expired - Fee Related
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3509785A (en) * | 1966-11-04 | 1970-05-05 | Western Electric Co | Methods of deep drawing solid plastic material |
| GB1308641A (en) * | 1970-01-27 | 1973-02-21 | Shoreham Precision Tools Ltd | Presses |
| CN1434282A (en) * | 2003-03-07 | 2003-08-06 | 江苏大学 | Edge pressing force and punching speed changeable single moving sheet hydraulic test machine |
| JP2006272456A (en) * | 2005-03-30 | 2006-10-12 | Hitachi Zosen Fukui Corp | Die cushion device |
| CN201070654Y (en) * | 2007-08-16 | 2008-06-11 | 浙江科技学院 | Deep-drawing mold based on variable blank holder force |
| CN101530882A (en) * | 2009-04-13 | 2009-09-16 | 重庆工学院 | Mould with alterable brake bead resistance |
| CN102029325A (en) * | 2010-11-18 | 2011-04-27 | 江苏大学 | Drawing mold with variable blank holder force with hydraulic linkage control by machine |
| CN103402667A (en) * | 2011-02-28 | 2013-11-20 | 新日铁住金株式会社 | Load applying device, press-molding die, and press-molding method |
| CN203649170U (en) * | 2013-11-19 | 2014-06-18 | 浙江吉利汽车研究院有限公司 | Drawing die |
| CN203751080U (en) * | 2014-04-08 | 2014-08-06 | 青岛金黄海集装箱有限公司 | Hydraulic machine for improving blank holding force |
| CN103949522A (en) * | 2014-04-24 | 2014-07-30 | 上海理工大学 | Design method of blank holder and edge pressing device |
| CN206083602U (en) * | 2016-08-09 | 2017-04-12 | 机械科学研究总院 | Drawing mold |
Non-Patent Citations (1)
| Title |
|---|
| 林忠钦等: "《汽车板精益成形技术》", 30 April 2009, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111203485A (en) * | 2020-02-28 | 2020-05-29 | 深圳新顿科技有限公司 | High-strength aluminum alloy hot forming drawing feeding control method, blank holder and die |
| CN112338035A (en) * | 2020-10-29 | 2021-02-09 | 燕山大学 | Hot drawing forming device and method capable of controlling blank holder force |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106111814B (en) | 2019-02-01 |
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