CN208575175U - A kind of sheet metal component drawing die - Google Patents
A kind of sheet metal component drawing die Download PDFInfo
- Publication number
- CN208575175U CN208575175U CN201820938821.3U CN201820938821U CN208575175U CN 208575175 U CN208575175 U CN 208575175U CN 201820938821 U CN201820938821 U CN 201820938821U CN 208575175 U CN208575175 U CN 208575175U
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- cavity plate
- punch
- pin
- sheet metal
- metal component
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Abstract
The utility model relates to sheet metal component manufacture field more particularly to a kind of sheet metal component drawing dies.The sheet metal component drawing die includes punch-pin, cavity plate and pressure plate; cavity plate and pressure plate can move up and down on the outside of punch-pin; cavity plate includes cavity plate main part and cavity plate boss; cavity plate boss is connected to the inside of cavity plate main part; in the state of molding; cavity plate is looped around the outside of punch-pin, and cavity plate boss protrudes to punch-pin and around punch-pin, makes the lower section of cavity plate boss and be located at the groove being formed on the inside of cavity plate main part.Increase boss on the inner surface that the utility model passes through cavity plate, the sheet metal component between the lower surface of cavity plate boss and the upper surface of pressure plate is made to form an inclined-plane, avoids the sheet metal component and mold direct friction on the inclined-plane during stretching and form stretch marks.
Description
Technical field
The utility model relates to sheet metal component manufacture field more particularly to a kind of sheet metal component drawing dies.
Background technique
In actual production, the appearance requirement of sheet metal component has no significant effect beautiful stretch marks, such as variegated, spot, gas
Bubble, layering, burr, overlap, folding line, white seal, scarce material, damage and slight crack etc..Referring to FIG. 4, existing sheet metal component drawing die
Including cavity plate 70, punch-pin 80 and pressure plate 90, when stretching sheet metal component 60, since the material in sheet metal component 60 generates flowing,
Region B can generate stretch marks, and mold can rub with sheet metal component 60 and generate trace, and after trimming, region B still remains in molding
On sheet metal component 60, so that sheet metal component 60 has apparent open defect.
Summary of the invention
Based on the deficiencies of the prior art, the utility model technical issues that need to address are to provide a kind of sheet metal component stretching die
Tool.
On the one hand the utility model embodiment provides a kind of sheet metal component drawing die, including punch-pin, cavity plate and pressure plate, institute
Stating cavity plate and the pressure plate can move up and down on the outside of the punch-pin, and the cavity plate includes that cavity plate main part and cavity plate are convex
Platform, the cavity plate boss are connected to the inside of the cavity plate main part, and in the state of molding, the cavity plate is looped around the punch-pin
Outside, the cavity plate boss protrudes to the punch-pin and around the punch-pin, and the pressure plate is looped around the outer of the punch-pin
Side, the cavity plate main body section above the pressure plate, the lower surface of the cavity plate main part, the cavity plate boss following table
Face and the upper surface of the pressure plate are lower than the upper surface of the punch-pin, the cavity plate boss, cavity plate main part, pressure plate and convex
Mould surrounds the groove being formed with below the cavity plate boss and on the inside of the cavity plate main part.
Preferably, the groove is around the punch-pin and equivalent width；Or
The cross section of the punch-pin is in rectangle, and the groove surround the punch-pin, the groove of the close rectangle apex angle
Width is less than the width corresponding to the paracentral groove of the rectangle.
Preferably, on cross section, the groove of each rectangular edges corresponding to the rectangle is in towards the rectangular edges
Arc, the line at the center on the arc top and rectangular edges of the arc is perpendicular to the rectangular edges；Or
On cross section, the groove of each rectangular edges corresponding to the rectangle is trapezoidal, and the rectangular edges are the ladder
The bottom of shape.
Preferably, the ratio between the height of the groove and its maximum width are between 0.17 to 0.58.
Preferably, in the state of molding, the upper surface of the cavity plate boss is higher than the upper surface of the punch-pin.
Preferably, in the state of molding, the distance between lower surface of the punch-pin upper surface and the cavity plate boss exists
Between 5-500mm.
Preferably, the outer surface of the upper surface of the punch-pin and the punch-pin passes through round-corner transition；And/or
The lower surface of the cavity plate boss inner surface and cavity plate boss passes through round-corner transition；And/or
The inner surface of the cavity plate main part and the lower surface of cavity plate main part pass through round-corner transition.
The sheet metal component drawing die of the utility model makes cavity plate boss by increasing boss on the inner surface of cavity plate
Sheet metal component between lower surface and the upper surface of pressure plate forms an inclined-plane and is avoided by the transition on the inclined-plane in drawing process
In sheet metal component on the inclined-plane and mold direct friction and form stretch marks.
Detailed description of the invention
It is more particularly described by the preferred embodiment in the utility model shown in the drawings, the above and other mesh of the utility model
, feature and advantage will become more fully apparent.Identical appended drawing reference indicates identical part in all the attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows this purport.
Fig. 1 is that the utility model stretches sheet metal part mold in the structural schematic diagram of first state.
Fig. 2 is that the utility model stretches sheet metal part mold in the structural schematic diagram of the second state.
Fig. 3 is the sheet metal component that sheet metal part mold drawing and forming is stretched using the utility model.
Fig. 4 is the structural schematic diagram of existing sheet metal component drawing die.
Fig. 5 is the cross-sectional view of sheet metal component drawing die in the utility model first embodiment.
Fig. 6 is the cross-sectional view of sheet metal component drawing die in the utility model second embodiment.
Fig. 7 is the cross-sectional view of sheet metal component drawing die in the utility model 3rd embodiment.
Specific embodiment
In order to be more clear the purpose of utility model, technical solution and its technical effect of the utility model, below in conjunction with
The utility model is described in detail in the drawings and specific embodiments.It should be understood that described in this specification specific
Embodiment is not intended to limit the utility model just for the sake of explaining the utility model.
Fig. 1 and Fig. 2 are please referred to, the utility model embodiment provides a kind of sheet metal component drawing die comprising punch-pin 30, recessed
Mould 20 and pressure plate 40, punch-pin 30, cavity plate 20 and pressure plate 40 can be connect with die station, and cavity plate 20 and pressure plate 40 can be convex
The outside of mould 30 moves up and down, and cavity plate 20 includes cavity plate main part 202 and cavity plate boss 201, and cavity plate boss 201 is connected to cavity plate
The inside of main part 202, cavity plate main part 202 and cavity plate boss 201 can be structure as a whole.It is signified inner and outer herein, be with
The central axis of punch-pin 30 is reference, the side of the central axis of close punch-pin 30 as inside, one of the central axis far from punch-pin 30
Side is outside.It is signified upper and lower herein, it is with the visual angle of operator for reference, i.e., operator faces this mold, specifically,
That is Fig. 1's and Fig. 2 is upper and lower.Referring to FIG. 2, that is, in mold clamping, cavity plate 20 is surround when mold is in the second state
In the outside of punch-pin 30, cavity plate boss 201 protrudes to punch-pin 30 and around punch-pin 30, and pressure plate 40 is looped around the outer of punch-pin 30
Side, cavity plate main part 202 are located at 40 top of pressure plate.During molding, cavity plate 20 and pressure plate 40 clamp metal plate jointly
Part 10 is depressed on upper surface and the outer surface of punch-pin 30, and sheet metal component 10 is made to generate deformation.Its 30 boss of convex mould
Inner surface is pressed in sheet metal component 10 on 30 outer surface of punch-pin, and groove 203 is pressed in sheet metal component 10 on 40 upper surface of pressure plate,
202 lower surface of cavity plate main part is pressed in sheet metal component 10 on 40 upper surface of pressure plate, so that sheet metal component 10 is formed flanging, to obtain
Required product shape.In the state of molding, the lower surface of cavity plate main part 202, the lower surface of cavity plate boss 201 and binder
The upper surface of plate 40 is below the upper surface of punch-pin 30.Cavity plate boss 201, cavity plate main part 202, pressure plate 40 and punch-pin 30 enclose
Around the groove 203 being formed with positioned at 202 inside of 201 lower section of cavity plate boss and the cavity plate main part.
It please refers to Fig. 1 and Fig. 2, when stretching, first sheet metal component 10 is placed on the upper surface of punch-pin 30, then makes cavity plate main body
202 lower surface of portion and the upper surface of pressure plate 40 clamp the outside of sheet metal component 10 jointly, then synchronous to push cavity plate 20 and binder
Plate 40, until 30 upper surface of punch-pin is higher than the lower surface of cavity plate boss 201.Then divide mould, move up cavity plate 20, with pressure plate 40
And punch-pin 30 separates, and obtains sheet metal component 10 as shown in Figure 3.Then trimming, trimming are carried out to sheet metal component 10 at the C of trimming position
Part on the inside of the C of position is molding component.Since rubs mutually generates stretching trace during stretching for material and mold
Mark, the utility model by increasing cavity plate boss 201 on the inner surface of cavity plate 20, make the lower surface of cavity plate boss 201 with
Sheet metal component 10 between the upper surface of pressure plate 40 forms an inclined-plane, by the transition on the inclined-plane, during stretching should avoid
Material on inclined-plane and mold direct friction and form stretch marks.
Referring to FIG. 5, dash area is the position where groove 203, the rectangular area 204 that shade surrounds is punch-pin 30,
And round-corner transition is used in the quadrangle of the rectangular area 204.In the mold of the utility model first embodiment, groove 203 is surrounded
Each side of rectangular area 204 is evenly distributed, and equivalent width.
Referring to FIG. 6, dash area is the position where groove 203, the rectangular area 204 that shade surrounds is punch-pin 30,
And round-corner transition is used in the quadrangle of the rectangular area 204.In the mold of the utility model second embodiment, groove 203 is surrounded
204 uneven distribution of rectangular area, the groove 203 of each rectangular edges corresponding to rectangular area 204 are in the arc towards rectangular edges
Shape, and the line at the center of the corresponding rectangular edges in arc top of each arc is perpendicular to the rectangular edges.That is each side in rectangular area 204
On 203 width of groove gradually decreased from centre toward both sides, 203 width of groove on rectangle quadrangle is zero, makes groove 203
Each side around rectangle is respectively formed arc-shaped region.
Please refer to figure, 7, dash area is the position where groove 203, and the rectangular area 204 that shade surrounds is punch-pin 30,
And round-corner transition is used in the quadrangle of the rectangular area 204.In the mold of the utility model 3rd embodiment, correspond to and the square
The groove of each rectangular edges in shape region 204 is trapezoidal, and rectangular edges are the trapezoidal bottom, and groove 203 surrounds punch-pin 30 not
It is uniformly distributed, 203 width of groove on each side in rectangular area 204 is gradually decreased from centre toward both sides, until rectangular area 204 4
203 width of groove on angle is zero, and groove 203 is made to be respectively formed antiparallelogram shape around each side of rectangular area 204.
In a preferred embodiment, the ratio between the height of groove 203 and its maximum width are between 0.17 to 0.58.In this way may be used
So that the shape between the lower surface of cavity plate boss 201 and the upper surface of pressure plate 40 of the sheet metal component 10 in groove 203 is in the slope
The part for there are stretch marks is controlled except trimming position simultaneously.
In any embodiment, in the state of molding, the upper surface of cavity plate boss 201 is higher than the upper surface of punch-pin 30.This
Sample is sufficiently tensile the sheet metal component 10 between 201 inner surface of punch-pin 30 and cavity plate boss, is not likely to produce deformation.
In any embodiment, in the state of molding, between 30 upper surface of punch-pin and the lower surface of cavity plate boss 201 away from
From preferably between 5-500mm.When can be reduced each stretching in this way between 30 outer surface of 201 inner surface of cavity plate boss and punch-pin
Sheet metal component 10 length error.
If the radius for the turning position that punch-pin 30 and cavity plate 20 are contacted with sheet metal component 10 is too small, too sharp, it is easy sheet metal component
10 break even puncture sheet metal component 10, generate useless part.Therefore in any embodiment, the upper surface of punch-pin 30 and punch-pin 30
Outer surface, the lower surface of cavity plate boss 201 inner surface and cavity plate boss 201, the inner surface of cavity plate main part 202 with it is recessed
The lower surface of mould main part 202 can pass through round-corner transition.
The utility model embodiment also provides a kind of sheet metal component drawing process, uses metal plate described in any of the above-described embodiment
Golden part drawing die is stretched, which includes the following steps:
Referring to FIG. 1, being in punch-pin 30 and cavity plate 20 divides mould state, sheet metal component 10 is placed in the upper surface of punch-pin 30
On, the position of cavity plate 20 and pressure plate 40 is adjusted, presss from both sides the lower surface of cavity plate main part 202 and the upper surface of pressure plate 40 jointly
Hold the outside of sheet metal component 10.
Referring to FIG. 2, make cavity plate 20 and pressure plate 40 synchronize press down, until the lower surface of cavity plate main part 202 is lower than
The upper surface of punch-pin 30, and the difference in height between 30 upper surface of punch-pin and the lower surface of cavity plate boss 201 is less than or equal to described
The maximum width of groove 203 makes sheet metal component 10 generate deformation.Referring to FIG. 3, in sheet metal component 10 in the inside of cavity plate boss 201
The first flanging 101 is formed between surface and the outer surface of punch-pin 30, in the upper of 201 lower surface of cavity plate boss and pressure plate 40
The second flanging 102 is formed between surface, the shape between the lower surface of cavity plate main part 202 and the upper surface of told pressure plate 40
At there is third flanging 103, the first flanging 101, the second flanging 102 and third flanging 103 are sequentially connected.
So that punch-pin 30 and cavity plate 20 is divided mould, takes out sheet metal component 10.
Referring to FIG. 3, cutting off sheet metal component 10 on the second flanging 102, the waste material in 10 outside of sheet metal component is taken out, needed for obtaining
Component.Guarantee have the sheet metal component 10 of stretch marks except trimming range in this way, also can be reduced the generation of waste material.
In a preferred embodiment, the angle between the second flanging 102 and third flanging 103 is 145-175 °, it is therefore preferable to
150-170°。
It in a preferred embodiment, further include by 102 shaping of the second flanging before cutting off sheet metal component on the second flanging 102
The step of, even if also the second flanging 102 and third flanging 103 are substantially flush, the second flanging 102 is approximately perpendicular to the first flanging
101, the angle between the second flanging 102 and third flanging 103 is 176-180 °.
The sheet metal component drawing die and sheet metal component drawing process of the utility model increase on the inner surface by cavity plate 20
Boss makes the sheet metal component 10 between the lower surface of cavity plate boss 201 and the upper surface of pressure plate 40 form an inclined-plane, avoids drawing
Sheet metal component 10 during stretching on the inclined-plane and mold direct friction and form stretch marks.
Above disclosed is only the preferred embodiment of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Range.
Claims (7)
1. a kind of sheet metal component drawing die, which is characterized in that including punch-pin, cavity plate and pressure plate, the cavity plate and the binder
Plate can move up and down on the outside of the punch-pin, and the cavity plate includes cavity plate main part and cavity plate boss, and the cavity plate boss connects
It connects in the inside of the cavity plate main part, in the state of molding, the cavity plate is looped around the outside of the punch-pin, and the cavity plate is convex
Platform protrudes to the punch-pin and around the punch-pin, and the pressure plate is looped around the outside of the punch-pin, the cavity plate main part
Above the pressure plate, the lower surface of the cavity plate main part, the lower surface of the cavity plate boss and the pressure plate
Upper surface is lower than the upper surface of the punch-pin, and the cavity plate boss, cavity plate main part, pressure plate and punch-pin, which surround to be formed with, to be located at
Groove below the cavity plate boss and on the inside of the cavity plate main part.
2. sheet metal component drawing die as described in claim 1, which is characterized in that the groove is around the punch-pin and width one
It causes；Or
The cross section of the punch-pin is in rectangle, and the groove is around the punch-pin, close to the width of the groove of the rectangle apex angle
Less than the width for corresponding to the paracentral groove of the rectangle.
3. sheet metal component drawing die as claimed in claim 2, which is characterized in that on cross section, corresponding to the rectangle
The groove of each rectangular edges is in the arc towards the rectangular edges, the line at the center on the arc top and rectangular edges of the arc
Perpendicular to the rectangular edges；Or
On cross section, the groove of each rectangular edges corresponding to the rectangle is trapezoidal, and the rectangular edges are described trapezoidal
Bottom.
4. sheet metal component drawing die as described in claim 1, which is characterized in that the height of the groove and its maximum width it
Than between 0.17 to 0.58.
5. sheet metal component drawing die as described in claim 1, which is characterized in that in the state of molding, the cavity plate boss
Upper surface is higher than the upper surface of the punch-pin.
6. sheet metal component drawing die as described in claim 1, which is characterized in that in the state of molding, the punch-pin upper surface
The distance between lower surface of the cavity plate boss is between 5-500mm.
7. sheet metal component drawing die as described in claim 1, which is characterized in that the upper surface of the punch-pin and the punch-pin
Outer surface passes through round-corner transition；And/or
The lower surface of the cavity plate boss inner surface and cavity plate boss passes through round-corner transition；And/or
The inner surface of the cavity plate main part and the lower surface of cavity plate main part pass through round-corner transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820938821.3U CN208575175U (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820938821.3U CN208575175U (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die |
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| Publication Number | Publication Date |
|---|---|
| CN208575175U true CN208575175U (en) | 2019-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820938821.3U Active CN208575175U (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723198A (en) * | 2018-06-19 | 2018-11-02 | 广州市翔翎金属制品有限公司 | A kind of sheet metal component drawing die and sheet metal component drawing process |
-
2018
- 2018-06-19 CN CN201820938821.3U patent/CN208575175U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723198A (en) * | 2018-06-19 | 2018-11-02 | 广州市翔翎金属制品有限公司 | A kind of sheet metal component drawing die and sheet metal component drawing process |
| CN108723198B (en) * | 2018-06-19 | 2024-03-12 | 广州市翔翎金属制品有限公司 | Sheet metal part stretching die and sheet metal part stretching method |
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