CN111804799A - One-time punching process for multi-groove hole and corresponding die structure - Google Patents
One-time punching process for multi-groove hole and corresponding die structure Download PDFInfo
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- CN111804799A CN111804799A CN202010625730.6A CN202010625730A CN111804799A CN 111804799 A CN111804799 A CN 111804799A CN 202010625730 A CN202010625730 A CN 202010625730A CN 111804799 A CN111804799 A CN 111804799A
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- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
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- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
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- Punching Or Piercing (AREA)
Abstract
The invention provides a one-time punching process for a multi-groove-shaped hole, which can save the working steps of a die and further reduce the material and processing cost of the die, thereby achieving the effect of reducing the unit price of a product. The punching die is characterized in that a product is placed on a lower die holder of the die, the corresponding area of a punched slot is positioned in a groove of a corresponding lower die plate of the lower die holder, then an upper die holder is driven to drive an integral punch structure to move downwards, the punch structure directly punches the product at a position where the slot needs to be punched at one time, and punched waste is directly discharged through a waste discharge hole of the lower die holder.
Description
Technical Field
The invention relates to the technical field of punching dies, in particular to a one-time punching process of a multi-slot-shaped hole, and further provides a die structure corresponding to the multi-slot-shaped hole product.
Background
For products with porous slot characteristics, because the distance between the slot and the slot is too close, in order to ensure the strength of the punch and the knife edge insert, a mode of multi-step and multi-time punching is often adopted to improve the strength of the die. However, such a multi-step punching structure is affected by die transfer, positioning, and pressing, and often the accuracy of the relative positions of the hole grooves and the hole grooves is not high, and the appearance of the cut surfaces of the hole grooves is not ideal. In view of this situation, there is a high necessity for a multi-hole groove punching structure that can be completed in a single process to improve the precision of products, improve the appearance of the hole grooves, and also ensure the strength of the mold.
Disclosure of Invention
Aiming at the problems, the invention provides a one-time punching process for a multi-groove-shaped hole, which can save the working steps of a die and further reduce the material and processing cost of the die, thereby achieving the effect of reducing the unit price of a product.
The one-time punching process of the multi-groove hole is characterized in that: the punching die is characterized in that a product is placed on a lower die holder of the die, the corresponding area of a punched slot is positioned in a groove of a corresponding lower die plate of the lower die holder, then an upper die holder is driven to drive an integral punch structure to move downwards, the punch structure directly punches the product at a position where the slot needs to be punched at one time, and punched waste is directly discharged through a waste discharge hole of the lower die holder.
It is further characterized in that:
the punch structure punches a product and then enters a guide hole of the knife edge inlet block, so that each punch is prevented from deforming, and the product quality is further influenced;
the bottom of the upper die base is also provided with a lower convex upper die stripping ejector rod, the top of the upper die base is also provided with an upper convex lower die stripping ejector rod, the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod respectively prop against the corresponding surfaces of the products through corresponding springs in a punching state, the positions of the products are ensured to be stable and reliable, and the products are respectively separated from the stripping plate and the lower die plate under the action of the corresponding springs in a stripping state, so that the products can be quickly taken and placed.
A mould structure for processing multislot shape hole product, its characterized in that: the stripper comprises an upper die part and a lower die part, wherein the upper die part comprises an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate, the lower die part comprises a lower die base, a lower base plate and a lower die plate, the upper part of the upper die base is fixedly connected with a punch driving end, the lower part of the upper die base is connected with the upper base plate, the upper clamping plate, a thrust plate and the stripper plate through an equal-height sleeve, the thrust plate and the stripper plate are fixedly connected to form a whole, a first ejector rod cavity is arranged between the thrust plate and the stripper plate, a first spring and a lower-convex upper die stripper ejector rod are arranged in the first ejector rod cavity, the upper part of the lower-convex upper die stripper rod is positioned in the first ejector rod cavity, the lower part of the first spring is propped against the upper end of the lower-convex upper die stripper rod, the lower end of the lower-convex upper die stripper rod is protruded under the unstre, the area of the upper clamping plate corresponding to the multi-groove hole of the product is fixedly provided with a clamping plate inlet block, the clamping plate inlet block is fixedly provided with an upper positioning end corresponding to a punch through a positioning pin, a plurality of punches are combined to form a punch structure, the stripper plate is fixedly provided with a stripper inlet block corresponding to the punch structure, the stripper inlet block is provided with a relief hole corresponding to the punch, the lower die holder is fixedly provided with a lower backing plate, the lower backing plate is fixedly provided with a lower die plate, the lower die plate is provided with an inward concave cavity corresponding to the punch structure, the inward concave cavity is used for positioning the corresponding to-be-punched area of the product, the lower surface of the inward concave cavity is provided with a knife edge inlet block formed by assembly, the knife edge inlet block is provided with a guide hole corresponding to the punch, the bottom of the lower die holder is provided with a waste discharge hole, and the bottom of the lower die holder, the bottom of the upper convex lower die stripping ejector rod is supported by a second spring, and the top of the upper convex lower die stripping rod sequentially penetrates through the lower die base, the lower backing plate and the lower die plate and then protrudes upwards from the upper surface of the lower die plate.
It is further characterized in that: the bottom of the stripping feeding block protrudes downwards to form a pre-shaping bulge, and the pre-shaping bulge is arranged in a shape of an inner concave area of the product, so that the positioning during punching is accurate and reliable;
the nitrogen cylinder is fixedly connected to the upper die base, and the bottom pressing end of the nitrogen cylinder is arranged on the upper surface of the stop plate in a pressing mode;
the lower part of the clamping plate inlet block is provided with a stop bulge, the upper surface of the stop plate is provided with a stop groove corresponding to the stop bulge, and the upper die holder drives the upper clamping plate to act so as to ensure that the subsequent punch structure acts accurately and reliably;
the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod respectively correspond to the upper surface and the lower surface of the product at the same position, so that the whole product cannot generate displacement in the punching process;
the bottom of the assembled knife edge inlet block is supported by a stressed gasket to ensure that the knife edge inlet block cannot crush the lower die base, a pressing block is pressed on the upper surface of the knife edge inlet block, and the central gap of the pressing block is the concave cavity.
After the structure of the invention is adopted, the punch press drives all parts of the upper die part to move downwards, the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod which are firstly contacted with the product are retracted into the die, but the spring force of the stripping ejector rods is smaller, so the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod can be retracted into the die, then the stripping plate drives the stripping insert to press the product and close the lower die plate, at the moment, the nitrogen cylinder generates pressure by the reverse acting force of the stripping plate and the stop plate, the pressure is applied to the stop plate, the stripping plate and the stripping insert and is transmitted to the product to press the product well, the product is prevented from running during punching, secondly, the punch press drives the upper die holder, the upper backing plate and the upper clamp plate and the punch fixed on the upper clamp plate to move downwards together, punching is completed after the punch passes through the product, and finally, the punch press drives, completing a punching process after the die is opened; the method can save the working steps of the die, further reduce the material and processing cost of the die, and further achieve the effect of reducing the unit price of the product.
Drawings
FIG. 1 is a schematic front view of the present invention in a ready to operate condition;
FIG. 2 is a front view of the product of the present invention in a positioned state;
FIG. 3 is a schematic front view of the die cutting of the present invention;
FIG. 4 is a schematic top view of the punch construction of the present invention;
FIG. 5 is a right side elevational view of the punch construction of the present invention;
FIG. 6 is a schematic top view of the knife-edge block of the present invention;
the names corresponding to the sequence numbers in the figure are as follows:
the device comprises an upper die holder 1, an upper padding plate 2, a punch 3, an arc-shaped structure 31, a positioning pin 4, an upper clamping plate 5, a clamping plate inlet block 6, a stopping plate 7 of a stopping protrusion 61, a stopping groove 71, a stripper plate 8, a stripper inlet block 9, a pre-shaping protrusion 91, a product 10, a pressing block 11, a lower die plate 12, a knife edge inlet block 13, a guide hole 131, a lower padding plate 14, a stressed gasket 15, a lower die holder 16, a concave cavity 17, a nitrogen cylinder 18, a waste discharge hole 19, an equal-height sleeve 20, a first spring 21, a lower convex upper die stripper ejector rod 22, an upper die stripper ejector rod 22, a second spring 24 and a locking screw 25.
Detailed Description
The one-time punching process of the multi-groove hole comprises the following steps: the punching die is characterized in that a product is placed on a lower die holder of the die, the corresponding area of a punched slot is positioned in a groove of a corresponding lower die plate of the lower die holder, then an upper die holder is driven to drive an integral punch structure to move downwards, the punch structure directly punches the product at a position where the slot needs to be punched at one time, and punched waste is directly discharged through a waste discharge hole of the lower die holder.
A knife edge inlet block is arranged on the lower die base, and a punch structure punches a product and then enters a guide hole of the knife edge inlet block, so that each punch is prevented from deforming, and the product quality is further influenced;
the bottom of upper die base still is provided with lower protruding mould stripper ejector pin, the top of upper die base still is provided with upper protruding lower mould stripper ejector pin, and under die-cut state, lower protruding mould stripper ejector pin, upper protruding lower mould stripper ejector pin are respectively through the corresponding spring withstands the corresponding surface of product, ensure that the position of product is firm reliable, under the drawing of patterns state, with the product respectively with take off flitch, lower bolster completion under the effect that corresponds the spring break away from for the product can be got fast and put.
The die structure for processing the multi-groove hole product is shown in figures 1-6: the stripper comprises an upper die part and a lower die part, wherein the upper die part comprises an upper die holder 1, an upper backing plate 2, an upper clamping plate 5, a stop plate 7 and a stripper plate 8, the lower die part comprises a lower die holder 16, a lower backing plate 14 and a lower die plate 12, the upper part of the upper die holder 1 is fixedly connected with a punch driving end, the lower part of the upper die holder 1 is connected with the upper backing plate 2, the upper clamping plate 5, a thrust plate 7 and the stripper plate 8 through an equal-height sleeve 20, the thrust plate 7 and the stripper plate 8 are fixedly connected to form a whole, a first ejector rod cavity is arranged between the thrust plate 7 and the stripper plate 8, a first spring 21 and a lower upper lower die stripper ejector rod 22 are arranged in the first ejector rod cavity, the upper part of the lower die stripper plate ejector rod 22 is arranged at the upper end of the lower die stripper plate 22, the lower end of the lower die stripper plate ejector rod 22 is protruded below the lower surface of the stripper plate 8 under the unstressed, a clamp plate inlet block 6 is fixedly arranged in the area of an upper clamp plate 5 corresponding to the multi-groove hole of the product, the clamp plate inlet block 6 is fixedly provided with an upper positioning end corresponding to a punch 3 through a positioning pin 4, a plurality of punches 3 are combined to form a punch structure, a stripper plate 8 is fixedly provided with a stripper inlet block 9 corresponding to the punch structure, a relief hole is arranged in the position of the stripper inlet block 9 corresponding to the punch 3, a lower backing plate 14 is fixedly arranged on a lower die base 16, a lower die plate 12 is fixedly arranged on the lower backing plate 14, a concave die cavity 17 is arranged in the position of the lower die plate 12 corresponding to the punch structure, the concave die cavity 17 is used for positioning the area of the product 10 corresponding to be punched, an assembled knife edge inlet block 13 is arranged on the lower surface of the concave die cavity 17, a guide hole 131 is arranged in the position of the knife edge inlet block 13 corresponding to the punch, a waste discharge hole 19 is arranged at the bottom of the, the bottom of the upper-convex lower die stripping ejector rod 23 is supported by a second spring 24, and the top of the upper-convex lower die stripping rod 23 sequentially penetrates through the lower die base 16, the lower backing plate 14 and the lower die plate 12 and then protrudes upwards to the upper surface of the lower die plate 12.
The bottom of the second spring 24 is fastened at the corresponding position of the lower die holder through a locking screw 25;
the nitrogen cylinder 18 is fixedly connected with the upper die holder 1, and the bottom pressure-attaching end is arranged on the upper surface of the stop plate 7 in a pressure-attaching manner;
the bottom of the stripping block 9 protrudes downwards to form a pre-shaping bulge 91, and the pre-shaping bulge 91 is arranged in a shape of an inner concave area of the product 10, so that the positioning during punching is accurate and reliable;
the lower part of the clamping plate inlet block 6 is provided with a stop bulge 61, the upper surface of the stop plate 7 is provided with a stop groove 71 corresponding to the stop bulge 61, and the accurate and reliable action of the subsequent punch structure is ensured when the upper die holder 1 drives the upper clamping plate 5 to act;
the lower convex upper die stripping ejector rod 22 and the upper convex lower die stripping ejector rod 23 respectively correspond to the upper surface and the lower surface of the product 10 at the same position, so that the whole product cannot generate displacement in the punching process;
the bottom of the assembled knife edge inlet block 13 is supported by a stressed gasket 15, the knife edge inlet block 13 is ensured not to crush the lower die seat 16, the upper surface of the knife edge inlet block 13 is provided with a pressing block 11, and the central gap of the pressing block 11 is a concave cavity 17.
In the specific embodiment, the number of the 7PCS punches is 7, each punch is closely fixed on the upper die, the number of the lower die knife edge inlet blocks is 8, each punch is closely fixed on the lower die, the knife edge of each inlet block is half of the left side and half of the right side, the strength of the upper end and the lower end is good, the strength of the middle area is slightly poor, and the 8 inlet blocks are spliced together and fixed on the lower die. During punching, the upper end and the lower end of the punch are protruded compared with the middle, so that the upper end and the lower end of the punch are firstly contacted with the area with the best strength of the knife edge entering block during punching, and after the upper end and the lower end cut off materials, the two ends do shearing movement towards the middle, so that the knife edge of the punch 3 is an arc-shaped structure 31 with two ends inwards concave towards the center, the strength of the knife edge entering block is well ensured, and the relative precision of all slotted holes can be ensured by punching all the slotted holes once.
The working principle is that the punch press drives all parts of the upper die part to move downwards, the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod which are firstly contacted with the product are retracted into the die, but the spring force of the stripping ejector rods is smaller, so that the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod can be retracted into the die, then the stripping plate drives the stripping insert to press the product and close the lower die plate, at the moment, the nitrogen cylinder generates pressure by the reverse acting force of the stripping plate and the stop plate, the pressure is applied to the stop plate, the stripping plate and the stripping insert and is transmitted to the product to press the product well, the product is prevented from running during punching, secondly, the punch press drives the upper die base, the upper backing plate and the upper clamp plate and the punch fixed on the upper clamp plate to move downwards together, punching is completed after the punch passes through the product, and finally, the punch press drives all, completing a punching process after the die is opened; the method can save the working steps of the die, further reduce the material and processing cost of the die, and further achieve the effect of reducing the unit price of the product.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The one-time punching process of the multi-groove hole is characterized in that: the punching die is characterized in that a product is placed on a lower die holder of the die, the corresponding area of a punched slot is positioned in a groove of a corresponding lower die plate of the lower die holder, then an upper die holder is driven to drive an integral punch structure to move downwards, the punch structure directly punches the product at a position where the slot needs to be punched at one time, and punched waste is directly discharged through a waste discharge hole of the lower die holder.
2. The one-time die-cutting process of the multi-slot hole as claimed in claim 1, wherein: and a knife edge inlet block is arranged on the lower die base, and the punch structure punches a product and then enters a guide hole of the knife edge inlet block.
3. The one-time die-cutting process of the multi-slot hole as claimed in claim 1, wherein: the bottom of the upper die base is also provided with a lower convex upper die stripping ejector rod, the top of the upper die base is also provided with an upper convex lower die stripping ejector rod, the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod respectively prop against the corresponding surfaces of the products through corresponding springs in a punching state, the positions of the products are ensured to be stable and reliable, and the products are respectively separated from the stripping plate and the lower die plate under the action of the corresponding springs in a stripping state, so that the products can be quickly taken and placed.
4. A mould structure for processing multislot shape hole product, its characterized in that: the stripper comprises an upper die part and a lower die part, wherein the upper die part comprises an upper die base, an upper base plate, an upper clamping plate, a stop plate and a stripper plate, the lower die part comprises a lower die base, a lower base plate and a lower die plate, the upper part of the upper die base is fixedly connected with a punch driving end, the lower part of the upper die base is connected with the upper base plate, the upper clamping plate, a thrust plate and the stripper plate through an equal-height sleeve, the thrust plate and the stripper plate are fixedly connected to form a whole, a first ejector rod cavity is arranged between the thrust plate and the stripper plate, a first spring and a lower-convex upper die stripper ejector rod are arranged in the first ejector rod cavity, the upper part of the lower-convex upper die stripper rod is positioned in the first ejector rod cavity, the lower part of the first spring is propped against the upper end of the lower-convex upper die stripper rod, the lower end of the lower-convex upper die stripper rod is protruded under the unstre, the area of the upper clamping plate corresponding to the multi-groove hole of the product is fixedly provided with a clamping plate inlet block, the clamping plate inlet block is fixedly provided with an upper positioning end corresponding to a punch through a positioning pin, a plurality of punches are combined to form a punch structure, the stripper plate is fixedly provided with a stripper inlet block corresponding to the punch structure, the stripper inlet block is provided with a relief hole corresponding to the punch, the lower die holder is fixedly provided with a lower backing plate, the lower backing plate is fixedly provided with a lower die plate, the lower die plate is provided with an inward concave cavity corresponding to the punch structure, the inward concave cavity is used for positioning the corresponding to-be-punched area of the product, the lower surface of the inward concave cavity is provided with a knife edge inlet block formed by assembly, the knife edge inlet block is provided with a guide hole corresponding to the punch, the bottom of the lower die holder is provided with a waste discharge hole, and the bottom of the lower die holder, the bottom of the upper convex lower die stripping ejector rod is supported by a second spring, and the top of the upper convex lower die stripping rod sequentially penetrates through the lower die base, the lower backing plate and the lower die plate and then protrudes upwards from the upper surface of the lower die plate.
5. The die structure for machining a multi-slot bore product as claimed in claim 4, wherein: the bottom of the stripping block protrudes downwards to form a pre-shaping bulge, and the pre-shaping bulge is arranged in a shape of an inner concave area of the product.
6. The die structure for machining a multi-slot bore product as claimed in claim 4, wherein: the nitrogen cylinder is fixedly connected with the back of the upper die base, and the bottom pressing end is pressed on the upper surface of the stop plate.
7. The die structure for machining a multi-slot bore product as claimed in claim 4, wherein: the lower part of the clamping plate inlet block is provided with a stopping protrusion, and the upper surface of the stopping plate is provided with a stopping groove corresponding to the stopping protrusion.
8. The die structure for machining a multi-slot bore product as claimed in claim 4, wherein: the lower convex upper die stripping ejector rod and the upper convex lower die stripping ejector rod respectively correspond to the upper surface and the lower surface of the product at the same position.
9. The die structure for machining a multi-slot bore product as claimed in claim 4, wherein: the bottom of the assembled knife edge inlet block is supported by a stressed gasket to ensure that the knife edge inlet block cannot crush the lower die base, a pressing block is pressed on the upper surface of the knife edge inlet block, and the central gap of the pressing block is the concave cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625730.6A CN111804799A (en) | 2020-07-02 | 2020-07-02 | One-time punching process for multi-groove hole and corresponding die structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010625730.6A CN111804799A (en) | 2020-07-02 | 2020-07-02 | One-time punching process for multi-groove hole and corresponding die structure |
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| Publication Number | Publication Date |
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| CN111804799A true CN111804799A (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010625730.6A Pending CN111804799A (en) | 2020-07-02 | 2020-07-02 | One-time punching process for multi-groove hole and corresponding die structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845802A (en) * | 2021-03-05 | 2021-05-28 | 合兴汽车电子股份有限公司 | Blanking assembly, blanking die and blanking process |
| CN113967946A (en) * | 2021-09-24 | 2022-01-25 | 富翔精密工业(昆山)有限公司 | Punching die |
| CN114273504A (en) * | 2021-12-06 | 2022-04-05 | 滁州市艾德模具设备有限公司 | Stamping die for forming after punching and blanking |
-
2020
- 2020-07-02 CN CN202010625730.6A patent/CN111804799A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112845802A (en) * | 2021-03-05 | 2021-05-28 | 合兴汽车电子股份有限公司 | Blanking assembly, blanking die and blanking process |
| CN113967946A (en) * | 2021-09-24 | 2022-01-25 | 富翔精密工业(昆山)有限公司 | Punching die |
| CN113967946B (en) * | 2021-09-24 | 2023-10-24 | 富翔精密工业(昆山)有限公司 | Punching die |
| CN114273504A (en) * | 2021-12-06 | 2022-04-05 | 滁州市艾德模具设备有限公司 | Stamping die for forming after punching and blanking |
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