CN108856507A - A kind of sheet metal component drawing die and sheet metal component drawing process - Google Patents
A kind of sheet metal component drawing die and sheet metal component drawing process Download PDFInfo
- Publication number
- CN108856507A CN108856507A CN201810627153.7A CN201810627153A CN108856507A CN 108856507 A CN108856507 A CN 108856507A CN 201810627153 A CN201810627153 A CN 201810627153A CN 108856507 A CN108856507 A CN 108856507A
- Authority
- CN
- China
- Prior art keywords
- punch
- cavity plate
- sheet metal
- metal component
- boss
- 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.)
- Withdrawn
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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
- 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
-
- 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
Abstract
The present invention relates to sheet metal component manufacture field more particularly to a kind of sheet metal component drawing dies and sheet metal component drawing process.The mold includes punch-pin, cavity plate and pressure plate, and cavity plate and pressure plate can move up and down on the outside of punch-pin, and punch-pin includes punch main body portion and punch-pin boss, and punch-pin boss is connected in punch main body portion and protruding upward, and cavity plate includes cavity plate main part and cavity plate boss.In the state of molding, cavity plate main part is looped around the outside in punch main body portion, and cavity plate boss is connected to the inside of cavity plate main part, and protrudes to punch-pin boss, and cavity plate boss is formed with the groove matched with punch main body portion on punch-pin boss, cavity plate.The present invention makes stretch marks be formed in the outside of sheet metal component trimming position by the setting of mould structure, then makes sheet metal component after molding not have stretch marks by trimming.
Description
Technical field
The present invention relates to sheet metal component manufacture field more particularly to a kind of sheet metal component drawing dies and sheet metal component drawing process.
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 after trimming, region B is still remained on molding sheet metal component 60, so that sheet metal component 60 is with bright
Aobvious open defect.
Summary of the invention
Based on the deficiencies of the prior art, the technical problem to be solved by the invention is to provide a kind of sheet metal component drawing dies
And sheet metal component drawing process.
On the one hand the embodiment of the present invention provides a kind of sheet metal component drawing die, including punch-pin, cavity plate and pressure plate, described
Cavity plate and the pressure plate can move up and down on the outside of the punch-pin, and the punch-pin includes punch main body portion and punch-pin boss,
The punch-pin boss is connected in the punch main body portion and protruding upward, is formed in the punch main body portion around described
The stitching surface of punch-pin boss, the cavity plate includes cavity plate main part and cavity plate boss, in the state of molding, the cavity plate main body
Portion is looped around the outside in the punch main body portion, and the cavity plate boss is connected to the inside of the cavity plate main part, and to described
Punch-pin boss protrusion, the cavity plate boss are formed with and punch main body portion phase on the punch-pin boss, the cavity plate
The groove of cooperation, the groove are located at the lower section of the cavity plate boss and are located at the inside of the cavity plate main part, the binder
Plate is looped around the outside in the punch main body portion, the cavity plate main body section above the pressure plate and with the pressure plate
It matches, the lower surface of the cavity plate boss is pressed on the stitching surface, the lower surface of the cavity plate main part and the binder
The upper surface of plate is lower than the stitching surface.
Preferably, the height of the groove is less than the height in the punch main body portion.
Preferably, the length ratio of the height of the groove and the groove is between 0.1-0.8.
Preferably, the height of the cavity plate boss is greater than the height of the punch-pin boss.
Preferably, the height of the groove is less than the height of the punch-pin boss.
Preferably, the ratio between the height of the groove and the height of punch-pin boss are between 0.25-0.95.
Preferably, the outer surface of the upper surface of the punch-pin boss and the punch-pin boss passes through round-corner transition；With/
Or
The outer surface and the stitching surface of the punch-pin boss pass through round-corner transition；And/or
The stitching surface and the outer surface in the punch main body portion pass 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 lower surface of the cavity plate boss and the cavity plate main part 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.
On the other hand the embodiment of the present invention provides a kind of sheet metal component drawing process, by using any of the above-described embodiment
In sheet metal component drawing die stretched, the sheet metal component drawing process includes the following steps：
It is in the punch-pin and cavity plate and divides mould state, sheet metal component is placed in the upper surface of the punch-pin boss, it is described recessed
Mould main part and the pressure plate clamp the sheet metal component；
Make the cavity plate is synchronous with the pressure plate to push, until the lower surface of the cavity plate boss is by the sheet metal component
It is pressed on the stitching surface in the punch main body portion, the lower surface of the cavity plate main part is lower than the stitching surface, the sheet metal component
It is formed with the first flanging between the lower surface of the cavity plate boss and the stitching surface in the punch main body portion, in the cavity plate
It is formed with the second flanging between the inner surface of main part and the outer surface in the punch main body portion, in the cavity plate main body
Third flanging, first flanging, the second flanging and third are formed between the lower surface in portion and the upper surface of the pressure plate
Flanging is sequentially connected；
So that the punch-pin and cavity plate is divided mould, takes out the sheet metal component；
The sheet metal component is cut off on first flanging, takes out the waste material on the outside of the sheet metal component, obtains required portion
Part.
Preferably, the length ratio of the length of the cut-out of first flanging and first flanging is 0.03-
0.75。
Sheet metal component drawing die and sheet metal component drawing process of the invention makes stretch marks by the setting of mould structure
It is formed in the outside of sheet metal component trimming position, then makes sheet metal component after molding not have stretch marks by trimming.
Detailed description of the invention
It is more particularly described by the preferred embodiment of the present invention shown in the drawings, the above and other purpose of the present invention, feature
It will be become more fully apparent with advantage.Identical appended drawing reference indicates identical part in all the attached drawings, and not deliberately by real
Size equal proportion scaling in border draws attached drawing, it is preferred that emphasis is shows purport of the invention.
Fig. 1 is structural schematic diagram of the sheet metal component drawing die of the present invention in first state.
Fig. 2 is structural schematic diagram of the sheet metal component drawing die of the present invention in the second state.
Fig. 3 is the sheet metal component using sheet metal component drawing die drawing and forming of the present invention.
Fig. 4 is the structural schematic diagram of existing sheet metal component drawing die.
Specific embodiment
In order to be more clear goal of the invention of the invention, technical solution and its technical effect, below in conjunction with attached drawing and tool
The present invention is described in detail for body embodiment.It should be understood that specific embodiment described in this specification is only
It is to be not intended to limit the present invention to explain the present invention.
Fig. 1 and Fig. 2 are please referred to, the embodiment of the present invention provides a kind of sheet metal component drawing die, including punch-pin 40, cavity plate 10
With pressure plate 30.Punch-pin 40, cavity plate 10 can be connect with die station, and cavity plate 10 and pressure plate 30 can be on the outsides of punch-pin 40
Lower movement.Referring to FIG. 2, that is, in mold clamping, cavity plate 10 and pressure plate 30 clamp metal plate jointly when the second state
Golden part 20, is depressed on the upper surface of punch-pin 40, to make sheet metal component 20 generate deformation, outside product required for obtaining
Shape.It is signified inner and outer herein, it is with the central axis of punch-pin 40 for reference, the side close to the central axis of punch-pin 40 is inside,
The side of central axis far from punch-pin 40 is outside.It is signified upper and lower herein, it is to be operated with the visual angle of operator for reference
Member faces this mold, and specifically, i.e. Fig. 1 and Fig. 2's is upper and lower.Punch-pin 40 includes that punch main body portion 402 and punch-pin are convex
Platform 401, punch-pin boss 401 are connected in punch main body portion 402 and protruding upward, are formed in punch main body portion 402 around convex
The stitching surface 403 of mould boss 401.Punch main body portion 402 and punch-pin boss 401 can be structure as a whole.Referring to FIG. 1, cavity plate
10 include cavity plate main part 102 and cavity plate boss 101, and cavity plate main part 102 and cavity plate boss 101 can be structure as a whole, recessed
101 middle part of mould boss is hollow.In the state of molding, cavity plate main part 102 is looped around the outside in punch main body portion 402, and cavity plate is convex
Platform 101 is connected to the inside of cavity plate main part 102, and protrudes to punch-pin boss 401.Cavity plate boss 101 is around punch-pin boss
401, the groove 103 matched with punch main body portion 402 is formed on cavity plate 10.Groove 103 is located under cavity plate boss 101
Side and the inside for being located at cavity plate main part 102.Sheet metal component 20 is pressed in the stitching surface 403 of punch-pin 40 by the upper surface of groove 103
On, sheet metal component 20 is pressed on the outer surface in punch main body portion 402 by the outer surface of groove 103, and sheet metal component 20 is made to form folding
Side.Pressure plate 30 is looped around the outside in punch main body portion 402, and cavity plate main part 102 is located at 30 top of pressure plate and and pressure plate
30 match, and when molding state, sheet metal component 20 is pressed on stitching surface 403 by the lower surface of cavity plate boss 101, cavity plate main part
102 lower surface and the upper surface of pressure plate 30 are lower than stitching surface 403.
It please refers to Fig. 1 and Fig. 2, when stretching, first sheet metal component 20 is placed on the upper surface of punch-pin boss 401, is then made recessed
The lower surface of mould main part 102 and the upper surface of pressure plate 30 clamp the outside of sheet metal component 20 jointly, then synchronous to push cavity plate
10 and pressure plate 30, until sheet metal component 20 is pressed on the stitching surface 403 of punch-pin 40 by cavity plate boss 101.Then divide mould, make recessed
Mould 10 moves up, and separates with pressure plate 30 and punch-pin 40, obtains sheet metal component 20 as shown in Figure 3.Then at the C of trimming position pair
Sheet metal component 20 carries out trimming, and the part on the inside of the C of trimming position is molding sheet metal component 20.Due to the flowing of material, Fig. 3 institute
The sheet metal component 20 shown will form stretch marks at the D of region, and region D is located at the outside of trimming position C, trimming position after trimming
Sheet metal component 20 on the outside of C becomes waste material, and not will form stretch marks then in the inside of trimming position C, obtains finally by trimming
To molding sheet metal component 20 on there is no stretch marks.
In a preferred embodiment, the height of groove 103 is less than the height in punch main body portion 402, can make trimming shape in this way
At waste material it is less, the utilization rate of material is relatively high.Signified height refers to length along the vertical direction herein.
To reduce waste material and guaranteeing to stretch trace region simultaneously except trimming range, the height and groove 103 of groove 103
Length ratio preferably between 0.1-0.8.Such as the height of groove 103 can be 4mm, the length of groove 103 can be
The height of 36mm or groove 103 can be 6mm, and the length of groove 103 can be 7mm.If the ratio is too small or too
Greatly, the waste material that can all make trimming generate is more.
In a preferred embodiment, the height of cavity plate boss 101 is greater than the height of punch-pin boss 401, makes punch-pin boss in this way
Sheet metal component 20 on 401 is not likely to produce deformation.
In a preferred embodiment, the height of groove 103 is less than the height of punch-pin boss 401, can reduce trimming in this way
Waste material.It is further preferred that the height of groove 103 and the ratio between the height of punch-pin boss 401 are between 0.25-0.95.Such as it is recessed
The height of slot 103 can be 50mm, and the height of punch-pin boss 401 can be that the height of 200mm or groove 103 can be
The height of 1.5mm, punch-pin boss 401 can be 1.6mm etc..
If be easy if the turning position radius that punch-pin 40 and cavity plate 10 are contacted with sheet metal component 20 is too small, too sharp metal plate
Part 20, which breaks, even pierces through sheet metal component 20, generates useless part.Therefore the upper surface of punch-pin boss 401 and punch-pin boss 401 is outer
Side surface, the outer surface of punch-pin boss 401 and stitching surface 403, stitching surface 403 and the outer surface in punch main body portion 402,
The lower surface of 101 inner surface of cavity plate boss and cavity plate boss 101, the lower surface of cavity plate boss 101 and cavity plate main part 102
Inner surface, the inner surface of cavity plate main part 102 and the lower surface of cavity plate main part 102 can pass through round-corner transition.
The embodiment of the present invention also provides a kind of sheet metal component drawing process, uses metal plate described in any of the above-described embodiment
Part drawing die is stretched, which includes the following steps：
Referring to FIG. 1, being in punch-pin 40 and cavity plate 10 divides mould state, sheet metal component 20 is placed in the upper of punch-pin boss 401
On surface, the position of cavity plate 10 and pressure plate 30 is adjusted, the lower surface of cavity plate main part 102 and the upper surface of pressure plate 30 are made
The outside of common clamping sheet metal component 20.
Referring to FIG. 2, make cavity plate 10 and pressure plate 30 synchronize press down, punch-pin 40 remains stationary, until cavity plate main part
102 lower surface is lower than stitching surface 403, and sheet metal component 20 is pressed in punch main body portion 402 by the lower surface of cavity plate boss 101
On stitching surface 403, sheet metal component 20 is made to generate deformation.Referring to FIG. 3, lower surface and punch-pin of the sheet metal component 20 in cavity plate boss 101
The first flanging 201 is formed between the stitching surface of main part 402, inner surface and punch main body portion in cavity plate main part 102
The second flanging 202 is formed between 402 outer surface, in the lower surface of cavity plate main part 102 and the upper surface of pressure plate 30
Between be formed with third flanging 203, the first flanging 201, the second flanging 202 and third flanging 203 are sequentially connected.
So that punch-pin 40 and cavity plate 10 is divided mould, takes out sheet metal component 20.
Referring to FIG. 3, cutting off sheet metal component 20 on the first flanging 201, the waste material in 20 outside of sheet metal component is taken out, institute is obtained
Need component.To guarantee without stretching trace on the sheet metal component 20 on the outside of removing after waste material, and the waste material that trimming generates is reduced, first
The length ratio of the length of the cut-out of flanging 201 and the first flanging 201 is preferably 0.03-0.75.For example, the first folding
The length of the cut-out on side 201 can be 3mm, and the length of the first flanging 201 can be 103mm, and residue length is after trimming
The length of the cut-out of 100mm or the first flanging 201 can be 3mm, and the length of the first flanging 201 can be 4mm, cut
Residue length is 1mm behind side.
Sheet metal component drawing die and sheet metal component drawing process of the invention makes stretch marks by the setting of mould structure
It is formed in the outside of sheet metal component trimming position, then makes sheet metal component after molding not have stretch marks by trimming.
Above disclosed is only presently preferred embodiments of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (9)
1. a kind of sheet metal component drawing die, including punch-pin, cavity plate and pressure plate, the cavity plate and the pressure plate can be described convex
It is moved up and down on the outside of mould, which is characterized in that the punch-pin includes punch main body portion and punch-pin boss, the punch-pin boss connection
It is in the punch main body portion and protruding upward, the stitching surface around the punch-pin boss is formed in the punch main body portion,
The cavity plate includes cavity plate main part and cavity plate boss, and in the state of molding, the cavity plate main part is looped around the punch-pin master
The outside in body portion, the cavity plate boss is connected to the inside of the cavity plate main part, and protrudes to the punch-pin boss, described recessed
Mould boss is formed with the groove matched with the punch main body portion, the groove on the punch-pin boss, the cavity plate
Lower section positioned at the cavity plate boss and the inside positioned at the cavity plate main part, the pressure plate are looped around the punch main body
The outside in portion, the cavity plate main body section match above the pressure plate and with the pressure plate, the cavity plate boss
Lower surface is pressed on the stitching surface, and the lower surface of the cavity plate main part and the upper surface of the pressure plate are lower than the pressing
Face.
2. sheet metal component drawing die as described in claim 1, which is characterized in that the height of the groove is less than the punch-pin master
The height in body portion.
3. sheet metal component drawing die as described in claim 1, which is characterized in that the length of the height of the groove and the groove
The ratio between degree is between 0.1-0.8.
4. sheet metal component drawing die as described in claim 1, which is characterized in that the height of the cavity plate boss is greater than described convex
The height of mould boss.
5. sheet metal component drawing die as described in claim 1, which is characterized in that it is convex that the height of the groove is less than the punch-pin
The height of platform.
6. sheet metal component drawing die as claimed in claim 5, which is characterized in that the height of the groove and the height of punch-pin boss
The ratio between degree is between 0.25-0.95.
7. sheet metal component drawing die as described in claim 1, which is characterized in that the upper surface of the punch-pin boss with it is described convex
The outer surface of mould boss passes through round-corner transition；And/or
The outer surface and the stitching surface of the punch-pin boss pass through round-corner transition；And/or
The stitching surface and the outer surface in the punch main body portion pass 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 lower surface of the cavity plate boss and the cavity plate main part passes through round-corner transition；And/or the cavity plate
The inner surface of main part and the lower surface of cavity plate main part pass through round-corner transition.
8. a kind of sheet metal component drawing process, which is characterized in that stretched using sheet metal component as described in any one of claim 1 to 7
Mold is stretched, and the sheet metal component drawing process includes the following steps：
It is in the punch-pin and cavity plate and divides mould state, sheet metal component is placed in the upper surface of the punch-pin boss, the cavity plate master
Body portion and the pressure plate clamp the sheet metal component；
Make the cavity plate is synchronous with the pressure plate to push, until the sheet metal component is pressed in institute by the lower surface of the cavity plate boss
On the stitching surface for stating punch main body portion, the lower surface of the cavity plate main part is lower than the stitching surface, and the sheet metal component is described
It is formed with the first flanging between the lower surface of cavity plate boss and the stitching surface in the punch main body portion, in the cavity plate main part
It is formed with the second flanging between inner surface and the outer surface in the punch main body portion, in the lower surface of the cavity plate main part
Third flanging is formed between the upper surface of the pressure plate, first flanging, the second flanging and third flanging successively connect
It connects；
So that the punch-pin and cavity plate is divided mould, takes out the sheet metal component；
The sheet metal component is cut off on first flanging, takes out the waste material on the outside of the sheet metal component, obtains required component.
9. sheet metal component drawing process as claimed in claim 8, which is characterized in that the length of the cut-out of first flanging
Length ratio with first flanging is 0.03-0.75.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627153.7A CN108856507A (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die and sheet metal component drawing process |
| CN201811523950.7A CN109500232B (en) | 2018-06-19 | 2018-12-13 | Sheet metal part stretching die and sheet metal part stretching method |
| CN201822091372.6U CN209697829U (en) | 2018-06-19 | 2018-12-13 | A kind of sheet metal component drawing die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627153.7A CN108856507A (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die and sheet metal component drawing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108856507A true CN108856507A (en) | 2018-11-23 |
Family
ID=64339285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810627153.7A Withdrawn CN108856507A (en) | 2018-06-19 | 2018-06-19 | A kind of sheet metal component drawing die and sheet metal component drawing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108856507A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198920A (en) * | 2021-03-24 | 2021-08-03 | 江苏汉达机械有限公司 | Sheet metal part stretching die and sheet metal part stretching method |
-
2018
- 2018-06-19 CN CN201810627153.7A patent/CN108856507A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113198920A (en) * | 2021-03-24 | 2021-08-03 | 江苏汉达机械有限公司 | Sheet metal part stretching die and sheet metal part stretching method |
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Application publication date: 20181123 |