CN211276118U - End cover punching die - Google Patents
End cover punching die Download PDFInfo
- Publication number
- CN211276118U CN211276118U CN201921997898.9U CN201921997898U CN211276118U CN 211276118 U CN211276118 U CN 211276118U CN 201921997898 U CN201921997898 U CN 201921997898U CN 211276118 U CN211276118 U CN 211276118U
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- China
- Prior art keywords
- punch
- plate
- end cover
- die
- upper die
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Abstract
An end cover punching die comprises an upper die device and a lower die device matched with the upper die device; the upper die device comprises an upper die frame plate, a punch fixing plate and an upper die stripper plate which are sequentially connected from top to bottom, wherein the lower surface of the upper die stripper plate is provided with an upper cambered surface part which is matched with the outer side surface of the end cover; the bottom of the upper die frame plate is provided with a first punch which is positioned at the side part of the center of the end cover and is opposite to the outer side surface of the end cover, the bottom surface of the first punch is provided with an inclined plane part matched with the outer side surface of the opposite end cover, and the bottom surface of the inclined plane part is provided with a plurality of sawtooth-shaped convex parts; the lower die device comprises a lower die plate for supporting the end cover, a lower cambered surface portion matched with the inner side surface of the end cover is arranged on the upper surface of the lower die plate, and a first through hole used for enabling the first punch to enter is formed in the lower die plate. The utility model discloses the horizontal skew that takes place when cockscomb structure convex part is favorable to controlling and reducing the punching press of first drift.
Description
Technical Field
The utility model relates to an end cover cut-out press.
Background
Hemispherical and hemispherical-like (e.g., cambered) workpieces require punching, and some of the holes to be punched are not located in the center of the workpiece.
Referring to fig. 1-2, a central hole 19 and an eccentric hole 20 are required to be processed on an end cover 4 of an inner container for electric heating water vapor.
In order to machine the eccentric hole 20, a corresponding eccentric punch 6 (corresponding to the first punch) is required to be arranged in the punching die, and referring to fig. 3-4, the punching direction of the eccentric punch 6 is not perpendicular to the surface of the end cover 4 (specifically, the surface of the end cover 4 where the eccentric hole 20 is required to be machined).
The problem lies in, in the punching process, eccentric drift 6 follows the last mould device and moves down and contact with end cover 4, forms an contained angle between eccentric drift 6 and the end cover 4, is equivalent to eccentric drift 6 punches a hole on the inclined plane, this just leads to eccentric drift 6 and end cover 4 to bear a lateral force (or called transverse force) opposite in direction respectively, causes eccentric drift 6 lateral deviation, and eccentric drift 6 can not accurately be down-punched into the corresponding hole site of lower mould device, causes the damage of eccentric drift 6 easily, has certain limitation.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the not enough of above-mentioned prior art existence, and provide an end cover cut-out press, the lateral deviation that takes place when its cockscomb structure convex part is favorable to control and reduces the punching press of first drift.
The purpose of the utility model is realized like this:
an end cover punching die comprises an upper die device and a lower die device matched with the upper die device;
the upper die device comprises an upper die frame plate, a punch fixing plate and an upper die stripper plate which are sequentially connected from top to bottom, wherein the lower surface of the upper die stripper plate is provided with an upper cambered surface part which is matched with the outer side surface of the end cover;
the bottom of the upper die frame plate is provided with a first punch which is positioned at the side part of the center of the end cover and is opposite to the outer side surface of the end cover, the bottom surface of the first punch is provided with an inclined plane part matched with the outer side surface of the opposite end cover, and the bottom surface of the inclined plane part is provided with a plurality of sawtooth-shaped convex parts;
the lower die device comprises a lower die plate for supporting the end cover, a lower cambered surface portion matched with the inner side surface of the end cover is arranged on the upper surface of the lower die plate, and a first through hole used for enabling the first punch to enter is formed in the lower die plate.
And a second punch opposite to the center of the end cover is arranged at the bottom of the upper die frame plate, and a second through hole for the second punch to enter is formed in the lower die plate.
And a first embedding sleeve matched with the first punch is arranged in the first through hole, and a second embedding sleeve matched with the second punch is arranged in the second through hole.
The first insert sleeve and the second insert sleeve are respectively provided with a punching channel which penetrates through the top surface and a waste discharge channel which is connected below the punching channel and penetrates through the bottom surface;
the diameter of the waste discharge channel is larger than that of the punching channel.
The lower die device comprises a lower base plate, a lower die frame plate arranged at the bottom of the lower base plate and a lower die pad foot arranged at the bottom of the lower die frame plate, and the lower die plate is arranged on the lower base plate;
and blanking holes communicated with the waste discharge channel are formed in the lower base plate and the lower die frame plate.
The plurality of convex parts are arranged at intervals along the transverse direction.
The first punch is located to the right of the end cap center.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of an end cap.
Fig. 2 is a schematic structural view of the end cap.
Fig. 3 is a schematic structural view of a prior art eccentric punch.
Fig. 4 is a schematic structural view of a prior art eccentric punch.
Fig. 5 is a cross-sectional view of an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a first punch according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a first punch according to an embodiment of the present invention.
Fig. 8 is a schematic view illustrating a state where the first punch is punched into the surface of the end cap according to an embodiment of the present invention.
Fig. 9 is a schematic structural view of an upper mold stripper plate according to an embodiment of the present invention.
Fig. 10 is a schematic structural view of a lower template according to an embodiment of the present invention.
Fig. 11 is a partial view of a convex portion according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1-2 and 5-11, the end cap punching die comprises an upper die device and a lower die device matched with the upper die device;
the upper die device comprises an upper die frame plate 1, a punch fixing plate 2 and an upper die discharging plate 3 which are sequentially connected from top to bottom, wherein the lower surface of the upper die discharging plate 3 is provided with an upper cambered surface part 5 which is matched with the outer side surface of the end cover 4;
the punch fixing plate 2 is fixed at the bottom of the upper die frame plate 1 through a first locking bolt 21, and the upper die discharging plate 3 can move up and down relative to the punch fixing plate 2.
A spring 22 is arranged between the upper die frame plate 1 and the upper die discharging plate 3, the upper end of the spring stretches into the upper die frame plate 1 to be connected, and the lower end of the spring is connected to the top of the upper die discharging plate 3.
An equal-height screw assembly 29 is arranged between the upper die frame plate 1 and the upper die discharging plate 3, the equal-height screw assembly 29 penetrates through the punch fixing plate 2 downwards and is screwed on the upper die discharging plate 3, a movable hole 30 used for enabling the head of the equal-height screw assembly 29 to move up and down is formed in the upper die frame plate 1, the head of the equal-height screw assembly 29 is arranged in the movable hole 30, and the equal-height screw assembly 29 and the upper die discharging plate 3 synchronously move up and down.
And a guide post 23 is arranged on the punch fixing plate 2, and the guide post 23 extends downwards into the upper die discharging plate 3.
The bottom of the upper die frame plate 1 is provided with a first punch 6 which is positioned at the side part of the center of the end cover 4 and is opposite to the outer side surface of the end cover 4, namely the first punch 6 is positioned at an eccentric position relative to the center of the end cover 4, the bottom surface of the first punch 6 is provided with an inclined plane part 7 matched with the outer side surface of the opposite end cover 4, and the bottom surface of the inclined plane part 7 is provided with a plurality of sawtooth-shaped convex parts 8;
the lower die device comprises a lower die plate 9 used for supporting the end cover 4, a lower arc surface 10 matched with the inner side surface of the end cover 4 is arranged on the upper surface of the lower die plate 9, and a first through hole used for allowing the first punch 6 to enter is formed in the lower die plate 9.
Under the non-punching state, the upper die stripper plate 3 is at the position farthest away from the punch fixing plate 2 under the action of self gravity and a spring, and the first punch 6 does not protrude out of the upper die stripper plate 3 downwards.
Before stamping, the end cover 4 is placed on the lower arc surface 10 of the lower template 9, so that the initial positioning of the end cover 4 is realized.
And (3) performing stamping processing, namely firstly, moving the upper die device downwards, enabling the upper arc part 5 of the upper die stripper plate 3 to be in contact with the outer side surface of the end cover 4 and tightly press the end cover 4, and tightly pressing the end cover 4 between the upper die stripper plate 3 and the lower die plate 9 to realize the final positioning of the end cover 4.
The upper die device continues to move downwards, the upper die stripper plate 3 is kept still, the convex part 8 of the first punch 6 is in surface contact with the end cover 4, the convex part 8 is in sharp sawtooth shape, the tip of the convex part 8 firstly contacts the surface of the end cover 4, so that the convex part 8 can be easily cut into the end cover 4, and the end cover 4 is firmly positioned between the upper die stripper plate 3 and the lower die plate 9, therefore, the first punch 6 realizes the relative positioning in the horizontal direction between the convex part 8 cut into the end cover 4 and the end cover 4, so that the transverse movement of the first punch 6 is effectively limited, and the first punch 6 can accurately punch into the first through hole of the lower die plate 9 to machine the eccentric hole 20.
In summary, the improved first punch 6 has the serrated convex portions 8 which are beneficial to controlling and reducing the lateral deviation generated when the first punch 6 punches, so that the damage to the first punch 6 is reduced, and the service life of the first punch 6 is prolonged.
Further, the bottom of the upper die frame plate 1 is provided with a second punch 11 opposite to the center of the end cover 4, and the lower die plate 9 is provided with a second through hole for the second punch 11 to enter.
The second punch 11 is used for machining the center hole 19.
The blanking direction of the second punch 11 is perpendicular to the surface of the end cover 4, and the second punch 11 does not shift laterally during the blanking process.
The side surfaces of the tops of the first punch 6, the second punch 11 and the guide column 23 are all provided with upper limiting tables 25 which extend outwards and are embedded in the punch fixing plate 2.
Furthermore, a first embedding sleeve 12 matched with the first punch 6 is arranged in the first through hole, and a second embedding sleeve 13 matched with the second punch 11 is arranged in the second through hole.
Furthermore, the first insert sleeve 12 and the second insert sleeve 13 are both provided with a punching channel 14 penetrating through the top surface and a waste discharge channel 15 connected below the punching channel 14 and penetrating through the bottom surface;
the diameter of the waste discharge channel 15 is larger than the diameter of the punching channel 14.
The diameter of the first punch 6 is the same as the diameter of the first insert 12 punching channel 14 and the diameter of the second punch 11 is the same as the diameter of the second insert 13 punching channel 14.
The side surfaces of the bottoms of the first insert sleeve 12 and the second insert sleeve 13 are respectively provided with a lower limiting table 26 which extends outwards and is embedded at the bottom of the lower template 9.
Further, the lower die device comprises a lower backing plate 16, a lower die frame plate 17 arranged at the bottom of the lower backing plate 16 and lower die pad feet 31 arranged at the bottom of the lower die frame plate 17, and the lower die plate 9 is arranged on the lower backing plate 16;
and the lower cushion plate 16 and the lower die frame plate 17, and the lower die plate 9 and the lower cushion plate 16 are fixedly connected through second locking bolts 24 respectively.
The number of the lower die pad feet 31 is two groups and is respectively positioned at the front part and the rear part of the ground of the lower die frame plate 17, and the lower die pad feet 31 are staggered with the waste discharge channel 15.
And blanking holes 18 communicated with the waste discharge channel 15 are formed in the lower cushion plate 16 and the lower die frame plate 17.
Further, the plurality of convex portions 8 are arranged at intervals in the lateral direction.
The convex portion 8 includes a first edge surface 27 located on the left side and a second edge surface 28 located on the right side and connected to the first edge surface 27, an included angle a between the first edge surface 27 and the horizontal plane is 90 °, and an included angle B between the second edge surface 28 and the horizontal plane is 20 °.
Further, the first punch 6 is located right from the center of the end cap 4.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and not for the purpose of limiting the same, and the appended claims are intended to cover all such modifications, equivalents, and alternatives falling within the scope of the present invention.
Claims (7)
1. An end cover punching die is characterized by comprising an upper die device and a lower die device matched with the upper die device;
the upper die device comprises an upper die frame plate (1), a punch fixing plate (2) and an upper die stripper plate (3) which are sequentially connected from top to bottom, wherein the lower surface of the upper die stripper plate (3) is provided with an upper cambered surface part (5) which is matched with the outer side surface of the end cover (4);
the bottom of the upper die frame plate (1) is provided with a first punch (6) which is positioned at the side part of the center of the end cover (4) and is opposite to the outer side surface of the end cover (4), the bottom surface of the first punch (6) is provided with an inclined plane part (7) matched with the outer side surface of the opposite end cover (4), and the bottom surface of the inclined plane part (7) is provided with a plurality of sawtooth-shaped convex parts (8);
the lower die device comprises a lower die plate (9) used for supporting the end cover (4), a lower cambered surface portion (10) matched with the inner side surface of the end cover (4) is arranged on the upper surface of the lower die plate (9), and a first through hole used for enabling the first punch (6) to enter is formed in the lower die plate (9).
2. The end cover punching die of claim 1, characterized in that the bottom of the upper die plate (1) is provided with a second punch (11) opposite to the center of the end cover (4), and the lower die plate (9) is provided with a second through hole for the second punch (11) to enter.
3. End cap punch die according to claim 2, characterised in that a first insert (12) cooperating with the first punch (6) is provided in the first through hole and a second insert (13) cooperating with the second punch (11) is provided in the second through hole.
4. The end cap punching die according to claim 3, wherein the first insert (12) and the second insert (13) are each provided with a punching channel (14) penetrating the top surface and a waste discharge channel (15) connected below the punching channel (14) and penetrating the bottom surface;
the diameter of the waste discharge channel (15) is larger than that of the punching channel (14).
5. The end cover punching die of claim 4, wherein the lower die device comprises a lower backing plate (16), a lower die frame plate (17) arranged at the bottom of the lower backing plate (16) and a lower die pad foot (31) arranged at the bottom of the lower die frame plate (17), and the lower die plate (9) is arranged on the lower backing plate (16);
and blanking holes (18) communicated with the waste discharge channel (15) are formed in the lower base plate (16) and the lower die frame plate (17).
6. The end cap punch die of claim 1, wherein the plurality of projections (8) are laterally spaced apart.
7. The end cap punch die of claim 1, wherein the first punch (6) is located to the right of the center of the end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921997898.9U CN211276118U (en) | 2019-11-18 | 2019-11-18 | End cover punching die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921997898.9U CN211276118U (en) | 2019-11-18 | 2019-11-18 | End cover punching die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211276118U true CN211276118U (en) | 2020-08-18 |
Family
ID=72035866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921997898.9U Expired - Fee Related CN211276118U (en) | 2019-11-18 | 2019-11-18 | End cover punching die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211276118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231536A (en) * | 2021-07-13 | 2021-08-10 | 烟台海上航天科技有限公司 | Parabolic satellite antenna puncher |
-
2019
- 2019-11-18 CN CN201921997898.9U patent/CN211276118U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113231536A (en) * | 2021-07-13 | 2021-08-10 | 烟台海上航天科技有限公司 | Parabolic satellite antenna puncher |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211118 |