CN207288610U - A kind of straight wall cylinder punch-forming mold with hemisphere bottom - Google Patents
A kind of straight wall cylinder punch-forming mold with hemisphere bottom Download PDFInfo
- Publication number
- CN207288610U CN207288610U CN201721234048.4U CN201721234048U CN207288610U CN 207288610 U CN207288610 U CN 207288610U CN 201721234048 U CN201721234048 U CN 201721234048U CN 207288610 U CN207288610 U CN 207288610U
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- Prior art keywords
- punch
- lower module
- module
- pin
- straight wall
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Abstract
It the utility model is related to a kind of straight wall cylinder punch-forming mold with hemisphere bottom, including upper module, lower module, one end is installed on upper mold seat and the other end is installed on the guide post on lower module, upper module includes upper mold seat, backing plate, punch-pin installing plate, die shank, drawing punch-pin, and lower module includes die holder, drawing cavity plate.Elastic tripper is provided between upper module and lower module, top plate is provided with lower module, top plate is connected with the mandril for being slidably mounted on lower module and spring being provided between lower module, and elastic tripper includes blank holder, unloading bolt, discharging spring.The utility model can increase the frictional force under blank holder in drawing process and increase pressure-pad-force to drawing blank deformation area, it can ensure successfully to carry out the application of power in drawing process, the corrugation probability of part is reduced, makes the straight wall cylinder part with hemisphere bottom after shaping more smooth.
Description
Technical field
Stamping Die Technology field is the utility model is related to, a kind of specifically straight wall cylinder with hemisphere bottom strikes out
Pattern has.
Background technology
Stamping die is that material is processed during Cold Press Working is carried out, and is finally processed into part either
A kind of more special process equipment of semi-finished product.Drawing is one of stamping procedure, will using Drawing Die under forcing press effect
The processing method that open hollow part is made in slab or hollow process part processing.It can not only process rotating body parts, can be with
Process box-shaped part and other complex-shaped thin-walled parts.
Part should be considered when designing cupping tool may wrinkle or the phenomenon by drawing crack, so needing to use blank holder
To reduce the corrugation probability of part, will also be to drawing crack the reason for (size of die entrance, the speed of punch-pin, performance of material etc.)
Profound analysis is carried out, so as to effectively improve mold design efficiency, production is reduced and material cost, the research for shortening product is opened
Send out the cycle.
A kind of straight wall cylindrical shape stamped workpieces drive punch-pin by blank plate, it is necessary to carry out drawing making, by forcing press
Drawing and forming.But in the prior art, frictional force in drawing process under blank holder is smaller, drawing blank deformation area
Pressure-pad-force dynamics is inadequate, and cannot be guaranteed the application that power is successfully carried out in drawing process, and the corrugation probability of part is higher,
And the straight wall cylinder part out-of-flatness with hemisphere bottom after shaping.
The content of the invention
In order to avoid with solve above-mentioned technical problem, the utility model proposes a kind of straight wall cylinder punching press with hemisphere bottom
Molding die.
Technical problem to be solved in the utility model is realized using following technical scheme：
A kind of straight wall cylinder punch-forming mold with hemisphere bottom, including upper module, lower module, one end are installed on upper mold seat
The upper and other end is installed on the guide post on lower module, the backing plate and backing plate that the upper module includes upper mold seat, is connected with upper mold seat
Connected punch-pin installing plate, die shank, the drawing punch-pin on punch-pin installing plate being connected with the top of upper mold seat, under described
Module includes die holder, the drawing cavity plate on die holder.
Elastic tripper is provided between the upper module and lower module, top plate is provided with the lower module, it is described
Top plate is connected with the mandril for being slidably mounted on lower module and spring being provided between lower module, the elastic tripper bag
Include blank holder, bottom thread is connected to unloading bolt that on blank holder and upper end is slidably mounted on module, is arranged on upper mold
Discharging spring between group and blank holder.
Preferably, the upper module further includes the No.1 soket head cap screw and No.1 straight pin for connecting each component.
Preferably, the lower module further includes No. two soket head cap screws and No. two straight pins for connecting each component.
Preferably, the drawing punch-pin is step.
Preferably, guide sleeve is installed between the guide post and upper mold seat, the guide pillars and bushes is clearance fit H7/h6,
Guide pillar hole is provided with die holder, lower part and the guide pillar hole of guide post are interference fit H7/r6, and outside diameter and the upper mold seat of guide sleeve were
It is full of and coordinates H7/r6.
Preferably, it is provided with positioning pin between the drawing cavity plate and blank holder.
Preferably, the vertical range between the drawing punch-pin and drawing cavity plate is 13mm.The thickness of the pressing sheet material
Less than 1.5mm.
The beneficial effects of the utility model are：
Compared with prior art, the utility model in drawing process by press air cushion by wrinkle resistant blank holder and
Mandril coordinates, and can increase the frictional force under blank holder and increase pressure-pad-force to drawing blank deformation area, can ensure in drawing
During successfully carry out the application of power, reduce the corrugation probability of part, make the straight wall cylinder part with hemisphere bottom after shaping
It is more smooth.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the assembly structure figure of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the straight wall cylinder schematic diagram with hemisphere bottom that the utility model wants drawing.
Embodiment
In order to make the technical means, creative features, achievable purpose and effectiveness that the utility model is realized easy to understand, under
It is expanded on further in face of the utility model.
As shown in Figure 1 to Figure 3, a kind of straight wall cylinder punch-forming mold with hemisphere bottom, including upper module, lower module,
One end is installed on upper mold seat and the other end is installed on the guide post 5 on lower module, and the upper module includes upper mold seat 7 and upper mold
The connected backing plates 8 of seat 7, the punch-pin installing plate 9 being connected with backing plate 8, the die shank 3 being connected with the top of upper mold seat 7, installed in punch-pin
Drawing punch-pin 10 on installing plate 9, the lower module include die holder 14, the drawing cavity plate 20 on die holder 14, institute
State and elastic tripper is provided between module and lower module, top plate 15 is provided with the lower module, the top plate 15 connects
The mandril 17 for being slidably mounted on lower module and spring 16 being provided between lower module is connected to, the elastic tripper includes
Blank holder 11, bottom thread are connected to the unloading bolt 1 that on blank holder 11 and upper end is slidably mounted on module, are arranged on
Discharging spring 12 between module and blank holder 11.
In the utility model, by means of the elastic force of discharging spring 12 during work, blank holder 11 is promoted to act and unloaded
Material, 20 simple shape of drawing cavity plate, as long as ensureing die size precision and positional precision, during drawing, press air cushion leads to
Cross mandril 17 and blank holder 11 coordinates, apply pressure to drawing blank deformation area to prevent circular blank from wrinkling, ensure in drawing
During successfully carry out the application of power.
In the utility model, No.1 soket head cap screw 2 and No.1 straight pin 4 are used to fix each component, by die shank 3 upper
Module is fixed on forcing press, while die shank 3 plays a part of to transmit and bears blanking pressure again, and backing plate 8 directly bears to come from drawing
The pressure of punch-pin 10, prevents upper mold seat 7 to be forced out pit and influence the normal work of mould.
In the utility model, die holder 14 is used for fixing lower die circular blank, mainly uses No. two 19 Hes of soket head cap screw
No. two straight pins 13 are fixed, and die holder 14 is fixed on press bench face, while also play and bear and disperse
The effect of drawing pressure.
The drawing punch-pin 10 is step.On the one hand it is easy to process using this design, is on the other hand replacement side
Just.
Guide sleeve 6 is installed between the guide post 5 and upper mold seat 7, the guide post 5 and guide sleeve 6 are clearance fit H7/h6, under
Guide pillar hole is provided with die holder 14, lower part and the guide pillar hole of guide post 5 are to be interference fitted H7/r6, outside diameter and the upper mold seat 7 of guide sleeve 6
To be interference fitted H7/r6.In this way, in order to ensure the upper and lower mould direction of motion is accurate, make drawing punch-pin 10 and drawing recessed
Uniform gap is kept between mould 20, clearance fit is carried out using guide post 5 and guide sleeve 6.
Positioning pin 18 is provided between the drawing cavity plate 20 and blank holder 11.In this way, circular blank uses
The positioning pin 18 installed on drawing cavity plate 20 is positioned, and such a mode is simple in structure, registration, easy to manufacture and install.
Vertical range between the drawing punch-pin 10 and drawing cavity plate 20 is 13mm.The thickness of the pressing sheet material is less than
1.5mm.In this way, it can ensure that drawing part is more smooth.
The working portion of the drawing punch-pin 10 and drawing cavity plate 20 is provided with fillet, drawing punch-pin 10 and drawing cavity plate 20
Working portion should not have sharp cutting edge, in this way, drawing crack product can be avoided.
The course of work of the utility model is further elaborated below：
Under the drive of exterior forcing press, drawing punch-pin 10 moves down, when drawing punch-pin 10 contacted with circular blank it is initial
Moment, point contact make blank produce greatly two-way tension, and the small area blank for contacting drawing punch-pin 10 first occurs quickly
It is similar to the deformation of bulging.With continuing traveling downwardly for drawing punch-pin 10, stay in outside the circular blank on 20 end face of drawing cavity plate
Footpath constantly reduces, and the circular blank area contacted with drawing cavity plate 20 is continuously increased, and the region being deformed also is constantly increasing,
Straight wall is formed in the gap that circular blank is gradually drawn between drawing punch-pin 10 and drawing cavity plate 20, and under drawing punch-pin 10
The material in face is then wrapped in the bottom of drawing punch-pin 10, becomes the bottom of drawing part.When circular blank fully enters drawing punch-pin
During gap between 10 and drawing cavity plate 20, blank shapes in drawing cavity plate 20, and drawing process terminates, and circular blank becomes to have
Certain diameter and the straight wall cylindrical part of height, last upper mold uplink, part is stayed in drawing cavity plate 20, then by mandril 17
By part ejection drawing cavity plate 20, so that part is obtained, process as repetition, you can obtain required part.
The advantages of basic principle, main feature and the utility model of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Simply the utility model principle, on the premise of not departing from the spirit and scope of the utility model, the utility model also has
Various changes and modifications, these changes and improvements are both fallen within claimed the utility model.The requires of the utility model is protected
Scope is defined by the appending claims and its equivalent thereof.
Claims (5)
- A kind of 1. straight wall cylinder punch-forming mold with hemisphere bottom, it is characterised in that：Including upper module, lower module, one end peace On upper mold seat and the other end is installed on the guide post (5) on lower module, and the upper module includes upper mold seat (7) and upper mold seat (7) connected backing plate (8), be connected with backing plate (8) punch-pin installing plate (9), be connected with the top of upper mold seat (7) die shank (3), Drawing punch-pin (10) on punch-pin installing plate (9), the lower module include die holder (14), installed in die holder (14) On drawing cavity plate (20)；Elastic tripper is provided between the upper module and lower module, top plate (15) is provided with the lower module, it is described Top plate (15) is connected with the mandril (17) for being slidably mounted on lower module and spring (16) being provided between lower module, the bullet Property device for discharging include blank holder (11), bottom thread is connected on blank holder (11) and upper end is slidably mounted on module Unloading bolt (1), the discharging spring (12) being arranged between module and blank holder (11).
- A kind of 2. straight wall cylinder punch-forming mold with hemisphere bottom according to claim 1, it is characterised in that：The drawing Deep punch-pin (10) is step.
- A kind of 3. straight wall cylinder punch-forming mold with hemisphere bottom according to claim 1, it is characterised in that：It is described to lead Guide sleeve (6) is installed, the guide post (5) and guide sleeve (6) are clearance fit H7/h6, die holder between column (5) and upper mold seat (7) (14) guide pillar hole is provided with, lower part and the guide pillar hole of guide post (5) are to be interference fitted H7/r6, the outside diameter and upper mold seat of guide sleeve (6) (7) it is interference fit H7/r6.
- A kind of 4. straight wall cylinder punch-forming mold with hemisphere bottom according to claim 1, it is characterised in that：The drawing Positioning pin (18) is provided between deep cavity plate (20) and blank holder (11).
- A kind of 5. straight wall cylinder punch-forming mold with hemisphere bottom according to claim 1, it is characterised in that：The drawing Vertical range between deep punch-pin (10) and drawing cavity plate (20) is 13mm, and the thickness of pressing sheet material is less than 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721234048.4U CN207288610U (en) | 2017-09-25 | 2017-09-25 | A kind of straight wall cylinder punch-forming mold with hemisphere bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721234048.4U CN207288610U (en) | 2017-09-25 | 2017-09-25 | A kind of straight wall cylinder punch-forming mold with hemisphere bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207288610U true CN207288610U (en) | 2018-05-01 |
Family
ID=62439313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721234048.4U Expired - Fee Related CN207288610U (en) | 2017-09-25 | 2017-09-25 | A kind of straight wall cylinder punch-forming mold with hemisphere bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207288610U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421067A (en) * | 2019-07-19 | 2019-11-08 | 华中科技大学 | A kind of the multiple step format forming device and method of accumulator shell |
| CN111318618A (en) * | 2020-03-12 | 2020-06-23 | 张军堂 | Stamping die convenient to drawing of patterns |
| CN113385573A (en) * | 2021-06-17 | 2021-09-14 | 上海交通大学 | High-precision cylindrical part drawing forming die and application thereof |
| CN115229059A (en) * | 2022-07-07 | 2022-10-25 | 沈阳飞机工业（集团）有限公司 | Variable-curvature opening frame reinforcing edge strip part efficiency forming device and using method |
-
2017
- 2017-09-25 CN CN201721234048.4U patent/CN207288610U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110421067A (en) * | 2019-07-19 | 2019-11-08 | 华中科技大学 | A kind of the multiple step format forming device and method of accumulator shell |
| CN111318618A (en) * | 2020-03-12 | 2020-06-23 | 张军堂 | Stamping die convenient to drawing of patterns |
| CN113385573A (en) * | 2021-06-17 | 2021-09-14 | 上海交通大学 | High-precision cylindrical part drawing forming die and application thereof |
| CN115229059A (en) * | 2022-07-07 | 2022-10-25 | 沈阳飞机工业（集团）有限公司 | Variable-curvature opening frame reinforcing edge strip part efficiency forming device and using method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180501 Termination date: 20210925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |