CN207343585U - A kind of exhaust structure of precise punching die - Google Patents
A kind of exhaust structure of precise punching die Download PDFInfo
- Publication number
- CN207343585U CN207343585U CN201721094133.5U CN201721094133U CN207343585U CN 207343585 U CN207343585 U CN 207343585U CN 201721094133 U CN201721094133 U CN 201721094133U CN 207343585 U CN207343585 U CN 207343585U
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- China
- Prior art keywords
- stomata
- punch
- pin
- mold insert
- exhaust structure
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Abstract
It the utility model is related to mould design and manufacture technical field, disclose a kind of exhaust structure of precise punching die, including punch-pin and the first stomata being arranged on punch-pin, first stomata one end is connected with the air drain set on backing plate, air drain external connection compressed air line, and it is also equipped with adjusting the flow control valve of compressed air require；The punch-pin collectively forms cavity with cavity plate and mold insert, and second stomata opposite with the first stomata is machined with mold insert, and the second stomata runs through along the central axial of mold insert；Cavity is equipped between the mold insert bottom and die holder, mold insert is fixed in lower template by support base.The present apparatus is by being improved the mould structure for needing repeatedly load-unload cylinder class product; mainly pass through the setting of exhaust structure and the adjusting of gas flow; exhaust pressure relief when realizing punch-pin punching press; air inlet is pressurizeed during punch-pin backhaul; reduce the pressure of the residual gas between punching course punch-pin and workpiece, while facilitate workpiece to demould.
Description
Technical field
Mould design and manufacture technical field is the utility model is related to, more particularly to a kind of exhaust knot of precise punching die
Structure.
Background technology
In the prior art, the forming process of conventional punch product is generally without considering exhaust structure, such as punching, bending and convex
The processes such as bag, however, the punch forming for deep hole product or cylindrical parts product, then need to take control single stretcher strain
Amount, carries out repeatedly load-unload punching press realization, wherein since punching press punch-pin occurs by workpiece cladding without the phenomenon of easy mold release, also has
The situation that workpiece is coated on cavity plate is likely to occur, common resolving ideas is to lubricate and increase knockout press, so increases the later stage
The cost that workpiece cleans again, while the damage of mold component may be serious, maintenance cycle shortens, corresponding cost increase.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of exhaust knot of precise punching die
Structure, is mainly used for the drawing punching press of cylindrical parts product, can utilize the pressure differential inside and outside gas, further increase knockout press, together
When reduce the infringement of residual gas pressure after workpiece and punch-pin closure.
In order to achieve the above object, the technical solution adopted in the utility model is：A kind of exhaust knot of precise punching die
Structure, is mainly used for the drawing punching press of cylindrical parts product, and stamping die is by upper mold seat, upper mounting plate, cope plate, the pad sequentially installed
Plate, holding pad, lower template, lower installation board and die holder composition, including punch-pin and the first stomata being arranged on punch-pin, the first gas
Hole one end is connected with the air drain set on backing plate；The punch-pin collectively forms cavity with cavity plate and mold insert, is processed on mold insert
There is second stomata opposite with the first stomata, the second stomata is axially penetrated through along mold insert.
Further, air drain external connection compressed air line as described above.
Further, it is also equipped with adjusting the flow control valve of compressed air require outside air drain as described above.
Further, the first stomata as described above is set for L-shaped.
Further, the second stomata as described above is located at the center of mold insert.
Further, cavity is equipped between mold insert bottom as described above and die holder.
Further, mold insert as described above is fixed in lower template by support base.
Compared with prior art, the beneficial effects of the utility model are：The utility model device passes through to needing repeatedly to draw
The mould structure of deep cylinder class product is improved, and mainly by the setting of exhaust structure and the adjusting of gas flow, is realized
Exhaust pressure relief during punch-pin punching press, during punch-pin backhaul air inlet pressurize, reduce residual gas between punching course punch-pin and workpiece
Pressure, air inlet pressurization facilitate workpiece to demould.
Brief description of the drawings
Fig. 1 is the mold structure diagram of the utility model；
Fig. 2 is the exhaust structure schematic diagram of the utility model；
Fig. 3 is the top view of air discharge duct in Fig. 2.
Mark in attached drawing for：1. upper mold seat；2. cope plate；3. backing plate；4. holding pad；5. lower template；6. lower installation board；
7. die holder；8. upper mounting plate；9. guide sleeve；10. guide post；11. punch-pin；12. mold insert；13. support base；14. the first stomata；15.
Cavity plate；16. the second stomata；17. air drain.
Embodiment
Be described in detail referring to the drawings with reference to embodiment, so as to the technical characteristics of the utility model and advantage into
Row deeper into annotation.
As shown in Figs. 1-3, the exhaust structure of a kind of precise punching die of the utility model, is mainly used for cylindrical parts product
Drawing punching press, the stamping procedure for especially needing repeatedly load-unload to complete, such as Fig. 2, stamping die is by the upper mold seat sequentially installed
1st, upper mounting plate 8, cope plate 2, backing plate 3, holding pad 4, lower template 5, lower installation board 6 and die holder 7 form, and cope plate 2 is with
Template 5 is connected by guide post 10 with 9 location fit of guide sleeve, and exhaust structure includes punch-pin 11 and be arranged on punch-pin 11 first
Stomata 14, the first stomata 14 are set for L-shaped, as shown in Figure 2,14 one end of the first stomata and the air drain 17 set on backing plate 3
It is connected, as shown in figure 3, the annular portion of air drain 17 and punch-pin 11 are coaxial, the outside of two connection backing plates 3 of line part of air drain 17
Edge, 17 external connection compressed air line of air drain, and it is also equipped with adjusting the flow control valve (compression of compressed air require
Air pipe line and flow control valve design for conventional criteria not to be drawn in drawing)；The punch-pin 11 and cavity plate 15 and mold insert
12 collectively form cavity, the position that cavity, that is, workpiece is placed, and are machined with mold insert 12 and 14 the second opposite stomata of the first stomata
16, the second axially penetrating through along mold insert 12 of stomata 16, the second stomata 16 is located at the center of mold insert 12, and 12 bottom of mold insert is with
Cavity is equipped between die holder 7, mold insert 12 is fixed in lower template 5 by support base 13.
The utility model device operation principle is：Second stomata 16 is directly connected with outside air, and stamping die starts
Work, punch-pin 11 push downwards workpiece, and flow control valve reduces charge flow rate until completely closing, between punch-pin 11 and workpiece
Gap is gradually reduced, and residual air therebetween is discharged by the first stomata 14；After the completion of punching press, punch-pin 11 moves back upwards
Journey, for flow control valve increase charge flow rate until reaching setting value, the gas pressure between punch-pin 11 and workpiece is more than the second gas
The standard atmospheric pressure in hole 16, workpiece are subject to downward active force, then are subject to the active force of holding pad 4, and workpiece departs from punch-pin 11 more
Add conveniently.
Clear, complete description carries out the utility model by the technical solution in above example, it is clear that described
Embodiment be the utility model part embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, those of ordinary skill in the art's all other embodiments obtained without making creative work, belongs to
The scope of the utility model protection.
Claims (7)
1. a kind of exhaust structure of precise punching die, is mainly used for the drawing punching press of cylindrical parts product, stamping die is by order
The upper mold seat of installation（1）, upper mounting plate（8）, cope plate（2）, backing plate（3）, holding pad（4）, lower template（5）, lower installation board（6）
And die holder（7）Composition, it is characterised in that including punch-pin（11）Be arranged on punch-pin（11）On the first stomata（14）, first
Stomata（14）One end and the air drain set on backing plate（17）It is connected；The punch-pin（11）With cavity plate（15）And mold insert（12）Altogether
With composition cavity, mold insert（12）On be machined with and the first stomata（14）The second opposite stomata（16）, the second stomata（16）Along edge
Part（12）Axially penetrate through.
2. the exhaust structure of precise punching die according to claim 1, it is characterised in that the air drain（17）It is exterior
Connect compressed air line.
3. the exhaust structure of precise punching die according to claim 2, it is characterised in that the air drain（17）It is exterior
It is also equipped with adjusting the flow control valve of compressed air require.
4. the exhaust structure of precise punching die according to claim 3, it is characterised in that first stomata（14）
Set for L-shaped.
5. the exhaust structure of precise punching die according to claim 4, it is characterised in that second stomata（16）
It is located at mold insert（12）Center.
6. the exhaust structure of precise punching die according to claim 5, it is characterised in that the mold insert（12）Bottom
With die holder（7）Between be equipped with cavity.
7. the exhaust structure of precise punching die according to claim 6, it is characterised in that the mold insert（12）Pass through
Support base（13）It is fixed in lower template.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094133.5U CN207343585U (en) | 2017-08-30 | 2017-08-30 | A kind of exhaust structure of precise punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721094133.5U CN207343585U (en) | 2017-08-30 | 2017-08-30 | A kind of exhaust structure of precise punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207343585U true CN207343585U (en) | 2018-05-11 |
Family
ID=62412222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721094133.5U Expired - Fee Related CN207343585U (en) | 2017-08-30 | 2017-08-30 | A kind of exhaust structure of precise punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207343585U (en) |
-
2017
- 2017-08-30 CN CN201721094133.5U patent/CN207343585U/en not_active Expired - Fee Related
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Legal Events
| 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: 20180511 Termination date: 20210830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |