CN210996012U - Punching die for punching near product bending edge - Google Patents
Punching die for punching near product bending edge Download PDFInfo
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- CN210996012U CN210996012U CN201921447270.1U CN201921447270U CN210996012U CN 210996012 U CN210996012 U CN 210996012U CN 201921447270 U CN201921447270 U CN 201921447270U CN 210996012 U CN210996012 U CN 210996012U
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Abstract
A punching die for punching a hole close to a product bending edge is characterized in that at least one side of the product is provided with a bending edge which is bent downwards, the die comprises an upper die holder and a lower die holder for placing the product, the upper die holder is driven to do linear reciprocating motion towards the lower die holder, a stripping assembly and a punch for punching are arranged at the bottom of the upper die holder, the punch comprises a taper section and a punching section which are arranged from top to bottom, the length of the taper section is consistent with the thickness of the product, the length of the punching section is larger than the thickness of the product, compared with the traditional method for machining a hole without straight stretching, the die has the advantages that the die machining mode is simple and convenient to operate, meanwhile, the problem that the punching hole of the product is influenced due to the fact that the punching hole is damaged because of insufficient strength of the traditional punching hole is effectively avoided, and especially when the punching hole is closer to the bending edge of the product, can ensure that the bending edge is not influenced.
Description
Technical Field
The utility model belongs to the mould field, concretely relates to punch a hole and be close to blanking mould on product limit of buckling.
Background
When punching a product, especially a plate product, a common method is to place the product on a lower die base of a punching die, drive an upper die base to press down through a punch press to drive a punch on the upper die base, and punch the product. However, this punching method is usually only used for punching straight holes, and needs to punch non-straight holes (holes with tapers that can match with the taper of the screw tail end) for installing screws, and also needs to perform milling with the help of a machine tool, and this processing method has many steps, is inconvenient to operate, and has a high production cost; when punching, a block entering hole needs to be formed below the corresponding punch on the lower die holder for blanking, if a position 32 to be punched of blanking is very close to an edge bending edge 31 of a product 3 as shown in fig. 1, because the strength of the block entering hole on the lower die holder of the traditional die is limited, the block entering hole needs to be formed at a position close to the bending edge 31, the distance from the edge of the block entering hole to the bending edge 31 is short, the material is thin, and further the damage is likely to be generated during punching, so that the punching of the product affects the bending edge of the product, and the processing of the product is affected.
As can be seen from the above, the conventional product punching has defects, and thus how to solve the above-mentioned defects of the prior art becomes a subject to be studied and solved by the present invention.
Disclosure of Invention
The utility model aims at providing a punch a hole and be close to the blanking mould on product limit of buckling.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a blanking die for punching a hole close to a bent edge of a product, wherein at least one side of the product is provided with the bent edge bent downwards, the die comprises an upper die holder and a lower die holder for placing the product, and the upper die holder is driven to do linear reciprocating motion towards the lower die holder;
the punching die comprises an upper die holder, a lower die holder, a punching head, a stripping plate assembly and a punching head, wherein the bottom of the upper die holder is provided with the stripping plate assembly and the punching head for punching, the stripping plate assembly is in sliding fit with the upper die holder in the vertical direction, the stripping plate assembly is provided with a through hole, the punching head is positioned in the through hole, and the punching head can extend out of or retract into the through hole of the stripping plate assembly in a working state;
the punch comprises a taper section and a punching section which are arranged from top to bottom, wherein the length of the taper section is consistent with the thickness of the product, and the length of the punching section is greater than the thickness of the product;
the lower die base is embedded with a reinforcing block corresponding to the punch head and used for bearing the product, the reinforcing block protrudes upwards out of the lower die base, the shape of the reinforcing block is consistent with that of the bottom surface of the product, and a block inlet hole is formed in the reinforcing block below the punch head.
In the above scheme, the lower die holder is provided with a plurality of abutting blocks corresponding to the side of the product, and the abutting blocks are uniformly arranged at the bending edge and abut against the outer side of the bending edge.
In the above scheme, the diameter of the block inlet hole is gradually increased from top to bottom.
In the above scheme, an elastic part is arranged between the upper die base and the stripping component, and the bottom end of the elastic part acts on the stripping component.
In the above scheme, the stripping plate assembly comprises a back stripping plate and a lower stripping plate, and the lower stripping plate is fixed at the bottom of the back stripping plate.
In the scheme, the reinforcing block is a tungsten steel block.
The utility model discloses has following effect: the utility model discloses the drift of mould includes the tapering section and the punching section that set up from top to bottom, and after punching out the straight hole through the punching section in the use, the tapering section that utilizes the drift is to this straight hole punching press can directly form and does not have the straight hole that stretches, and does not have the straight hole with the help of lathe milling with traditional processing and compare, and it is simple and convenient to process the operation through the mould mode, and the shaping is quick, and efficiency is higher; meanwhile, the reinforcing block protruding out of the lower die base is embedded into the reinforcing block, the product with the bent edge is borne by the reinforcing block, the situation that the product is punched due to the fact that the conventional block entering hole is damaged due to insufficient strength of the conventional block entering hole can be effectively avoided, and especially when the bending edge distance of the punched hole from the edge of the product is short, the influence on the bent edge can be avoided.
Drawings
Fig. 1 is a schematic structural view of a product to be punched according to an embodiment of the present invention;
FIG. 2 is a right side view of FIG. 1;
fig. 3 is a schematic structural diagram of an embodiment of the present invention;
FIG. 4 is a right side cross-sectional view of the lower die holder of FIG. 3.
In the above drawings: 1-upper die holder, 11-stripping component, 111-through hole, 112-back stripping plate, 113-lower stripping plate, 12-punch, 22-supporting block, 3-product, 31-bent edge and 32-position to be punched.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
example (b): referring to FIGS. 1-4: a blanking die for punching a bending edge close to a product, referring to fig. 1, one side of the product 3 is provided with a bending edge 31 which is bent downwards, a region of the product close to the bending edge is provided with a position 32 to be punched, and the distance between the position 32 to be punched and the bending edge 31 is generally within 3 times of the thickness of the product 3;
the die comprises an upper die holder 1 and a lower die holder 2 for placing a product 3, wherein the upper die holder 1 is driven to do linear reciprocating motion towards the lower die holder 2, and the upper die holder 1 can be placed below a punch press and driven by the punch press when in use;
the bottom of the upper die holder 1 is provided with a stripping component 11 and a punch 12 for punching a product 3, the stripping component 11 is in sliding fit with the upper die holder 1 in the vertical direction, specifically, two symmetrical guide rods are fixed at the bottom of the upper die holder 1 by the stripping component 11, a slide block is sleeved on the guide rods, the stripping component 11 is fixed on the slide block to form sliding fit, (not shown in the figure), the stripping component 11 is provided with a through hole 111, the punch 12 is positioned in the through hole 111, and a gap is formed between the stripping component 11 and the upper die holder 1, in the working state, the punch 12 can extend out of or retract into the through hole 111 of the stripper plate assembly 11, the stripper plate assembly 11 is a component in the existing die, and when the upper die base 1 is pressed down, the stripping component 11 moves downwards along with the upper die holder 1 until the stripping component is tightly pressed on a product 3, the punch 12 extends out of the through hole 111 to punch the product 3, and when the upper die holder 1 returns, the punch 12 retracts into the through hole 111;
the punch 12 comprises a taper section and a punching section which are arranged from top to bottom, wherein the length of the taper section is consistent with the thickness of the product 3, and the length of the punching section is greater than the thickness of the product 3; the punching section is consistent with the punching part of a conventional punch 12, during punching, the punching section of the punch 12 is driven by a punch to move downwards, the punching section punches a straight extending hole on a product 3, then a taper section is continuously pressed downwards into the straight extending hole to extrude the materials around the straight extending hole to form a straight extending-free hole with the shape corresponding to the taper section, the straight extending-free hole is mainly used for installing a screw, and the tail end of the screw is generally provided with the taper, so that when the screw is placed in the straight extending-free hole, the tail end of the screw can be embedded into the straight extending-free hole to prevent the screw from protruding out of the product 3;
a reinforcing block for bearing the product 3 is embedded in the lower die base 2 corresponding to the punch 12, the specific reinforcing block can be a tungsten steel block or other materials with the strength close to the strength of the tungsten steel block, the reinforcing block protrudes upwards out of the lower die base 2, the shape of the reinforcing block is consistent with that of the bottom surface of the product 3, a block inlet hole is formed in the reinforcing block corresponding to the lower part of the punch 12, the block inlet hole is a hole of the existing die structure and used for dropping out punched waste materials, when punching is carried out, the product is placed on the reinforcing block, and a punching section of the punch 12 moves downwards to punch the product 3 and then enters the block inlet hole;
when punching, the product 3 is buckled on the reinforcing block downwards, the bending edge 31 of the product leans against the side wall of the part of the reinforcing block protruding out of the lower die seat 2, the block inlet hole is formed in the reinforcing block, the strength of the material around the block inlet hole is higher than that of the traditional die material, the influence on the punching of the product 3 caused by the damage of the block inlet hole due to the insufficient strength of the traditional block inlet hole can be effectively avoided, and especially when the position 32 to be punched is closer to the bending edge 31 of the edge of the product 3, the influence on the bending edge 31 can be avoided;
the side part corresponding to the product 3 on the lower die holder 2 is provided with a plurality of supporting blocks 22, the supporting blocks 22 are uniformly arranged at the bending edge 31 and are supported against the outer side of the bending edge 31, and the supporting blocks 22 can clamp and limit the bending edge 31 to prevent the bending edge 31 from deforming in the punching process.
The diameter of the block inlet hole is gradually increased from top to bottom, so that waste materials can smoothly fall out;
an elastic member (not shown in the figure) is arranged between the upper die holder 1 and the stripper plate assembly 11, the bottom end of the elastic member acts on the stripper plate assembly 11, the elastic members can be arranged in a plurality, can be compression springs, and when the upper die holder 1 returns, the stripper plate assembly 11 can automatically return under the action of the compression springs.
The stripper plate assembly 11 comprises a back stripper plate 112 and a lower stripper plate 113, the lower stripper plate 113 is fixed at the bottom of the back stripper plate 112, the back stripper plate 112 is used for fixing the lower stripper plate 113 on the upper die base 1, and the lower stripper plate 113 can be pressed on the product 3 during punching.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a punch a hole and be close to blanking mould that product was buckled limit, at least one side of product has the limit of buckling of bending downwards, be close to on the product the region on the limit of buckling is equipped with waits punching position, its characterized in that: the die comprises an upper die holder and a lower die holder for placing a product, wherein the upper die holder is driven to do linear reciprocating motion towards the lower die holder;
the punching die comprises an upper die holder, a lower die holder, a punching head, a stripping plate assembly and a punching head, wherein the bottom of the upper die holder is provided with the stripping plate assembly and the punching head for punching, the stripping plate assembly is in sliding fit with the upper die holder in the vertical direction, the stripping plate assembly is provided with a through hole, the punching head is positioned in the through hole, and the punching head can extend out of or retract into the through hole of the stripping plate assembly in a working state;
the punch comprises a taper section and a punching section which are arranged from top to bottom, wherein the length of the taper section is consistent with the thickness of the product, and the length of the punching section is greater than the thickness of the product;
the lower die base is embedded with a reinforcing block corresponding to the punch head and used for bearing the product, the reinforcing block protrudes upwards out of the lower die base, the shape of the reinforcing block is consistent with that of the bottom surface of the product, and a block inlet hole is formed in the reinforcing block below the punch head.
2. A blanking die for piercing near a bent edge of a product as defined in claim 1, wherein: the lower die base is provided with a plurality of abutting blocks corresponding to the side parts of the product, and the abutting blocks are uniformly arranged at the bending edge and abut against the outer side of the bending edge.
3. A blanking die for piercing near a bent edge of a product as defined in claim 2, wherein: the diameter of the block inlet hole is gradually increased from top to bottom.
4. A blanking die for piercing near a bent edge of a product as defined in claim 1, wherein: an elastic piece is arranged between the upper die base and the stripping plate component, and the bottom end of the elastic piece acts on the stripping plate component.
5. A blanking die for piercing near a bent edge of a product as defined in claim 1, wherein: the stripping plate component comprises a back stripping plate and a lower stripping plate, and the lower stripping plate is fixed at the bottom of the back stripping plate.
6. A blanking die for piercing near a bent edge of a product as defined in claim 1, wherein: the reinforcing block is a tungsten steel block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447270.1U CN210996012U (en) | 2019-09-02 | 2019-09-02 | Punching die for punching near product bending edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921447270.1U CN210996012U (en) | 2019-09-02 | 2019-09-02 | Punching die for punching near product bending edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210996012U true CN210996012U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921447270.1U Active CN210996012U (en) | 2019-09-02 | 2019-09-02 | Punching die for punching near product bending edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210996012U (en) |
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2019
- 2019-09-02 CN CN201921447270.1U patent/CN210996012U/en active Active
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