CN112296187A - Forming, trimming and punching compound die - Google Patents
Forming, trimming and punching compound die Download PDFInfo
- Publication number
- CN112296187A CN112296187A CN202010460773.3A CN202010460773A CN112296187A CN 112296187 A CN112296187 A CN 112296187A CN 202010460773 A CN202010460773 A CN 202010460773A CN 112296187 A CN112296187 A CN 112296187A
- Authority
- CN
- China
- Prior art keywords
- plate
- die
- trimming
- pressure plate
- fixed
- 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- Withdrawn
Links
- 238000009966 trimming Methods 0.000 title claims abstract description 28
- 150000001875 compounds Chemical class 0.000 title claims abstract description 8
- 238000004080 punching Methods 0.000 title abstract description 18
- 238000009740 moulding (composite fabrication) Methods 0.000 title abstract description 16
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 4
- 238000013329 compounding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Classifications
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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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
A compound die for forming, trimming and punching is used for compound forming of the trimming and punching of a sheet metal part. The guide sleeve is arranged on the upper die base, the guide pillar is arranged on the lower die base, the punch is fixed on the fixed plate, the trimming female die and the fixed plate are fixed on the upper die base, the pressure plate is hung below the fixed plate, the pressure plate is arranged in the inner hole of the trimming female die, and the spring penetrates through the fixed plate and acts between the upper die base and the pressure plate; the positioning block is arranged on the lower die base and positioned on one side of the plate, and the convex-concave die is fixed on the lower die base and faces the pressure plate. According to the invention, before the trimming female die and the punch enter the male and female dies, the plate is firstly pressed and formed by the pressure plate under the action of the spring, and after the upper die base continues to move downwards, the edge of the plate is cut off and a forming hole is simultaneously punched, so that the part forming and trimming punching are completed at one time. Simple structure can effectively improve part punching press quality and production efficiency, reduce cost, and the specially adapted low strength, thin metal and profile are comparatively mild, inside porose part punching press takes shape.
Description
Technical Field
The invention relates to the technical field of mechanical manufacturing and stamping forming, in particular to a forming, trimming and punching compound die.
Background
Currently, the following solutions are generally adopted for press-formed parts with holes in the internal profile, but there are many disadvantages and drawbacks, respectively:
(1) blanking, forming and punching: the mold structure is simple, but each procedure needs one mold, three in all, and the efficiency is low; meanwhile, because the molded surface of the part is gentle, the positioning is unstable in the last process of punching, and the position accuracy of the punched hole is not high.
(2) Blanking and punching and then shaping: compared with the former scheme, the structure of the die is slightly complex, two pairs of dies are needed, the efficiency is improved, but after the inner hole of the part is punched out in the first process, the shape of the hole is deformed due to material flow when the part is formed in the second process, and the position precision of the part is still influenced.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the forming, trimming and punching compound die which adopts a production process of compounding and finishing forming, trimming and punching at one time for a punching forming part with low material strength, gentle profile and a hole in the inner profile so as to improve the dimensional precision of the part and reduce the production cost.
In order to achieve the purpose, the guide sleeve is arranged on the upper die base, the guide pillar is arranged on the lower die base, the punch is fixed on the fixed plate, the trimming female die and the fixed plate are fixed on the upper die base through a first bolt and a first positioning pin, the pressure plate is hung below the fixed plate through a limiting bolt penetrating through the upper die base, the pressure plate is arranged in an inner hole of the trimming female die, and the spring penetrates through the fixed plate and acts between the upper die base and the pressure plate; the positioning block is arranged on the lower die base and positioned on one side of the plate, the punch-die is fixed on the lower die base through a second bolt and a second positioning pin, and the punch-die faces the pressure plate; the plate is positioned on the convex-concave die through the positioning block, the upper die base drives the fixing plate, the trimming concave die and the pressure plate to move downwards together, the pressure plate starts to contact the plate, and the pressure plate and the convex-concave die press and form the plate under the pressure action of the spring; and the upper die base continues to move downwards, the spring starts to compress, the trimming female die and the punch enter the male die and the female die, the edge of the plate is cut off, and a forming hole is punched at the same time.
Compared with the prior art, the method comprises the steps of firstly calculating the force required by the molding of the molded surface of the extruded part through computer-aided stamping forming analysis, selecting a proper elastic element, enabling the initial pressure of the elastic element to be larger than the force required by the molding of the part, enabling the trimming female die and the punch to press and mold the plate under the action of the spring before entering the male and female dies, and then cutting the edge of the plate and simultaneously punching a molding hole after the upper die base continues to descend so as to realize the one-time stamping completion of the molding of the part and the trimming and punching. The invention has simple structure, can effectively improve the stamping quality and the production efficiency of parts, reduces the production cost, and is particularly suitable for stamping and forming parts with low strength, thin metal and gentle profile and holes in the parts.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic view of an exemplary part formed in accordance with the present invention.
Detailed Description
As shown in fig. 2, a component 18 is a simplified structure of a low strength material with a relatively flat profile and a hole in the interior.
As shown in fig. 1, the guide sleeve 3 of the present invention is installed on the upper die holder 4, the punch 9 is installed on the fixed plate 6, the trimming die 5 and the fixed plate 6 are fixed on the upper die holder 4 through the first bolt 7 and the first positioning pin 8, the pressure plate 10 is hung under the fixed plate 6 through the limiting bolt 11 penetrating through the upper die holder 4, the pressure plate 10 is placed in the inner hole of the trimming die 5, and the spring 12 penetrates through the fixed plate 6 and acts between the upper die holder 4 and the pressure plate 10; the guide post 2 and the positioning block 17 are arranged on the lower die holder 1, and the punch-die 14 is fixed on the lower die holder 1 through the bolt 13 and the positioning pin 15; the plate 16 is positioned on the convex-concave die 14 through the positioning block 17, the positioning block 17 is positioned on one side of the plate 16, the upper die base 4 drives the fixing plate 6, the trimming concave die 5 and the pressure plate 10 to move downwards together, the pressure plate 10 starts to contact the plate 16, and the pressure plate 10 and the convex-concave die 14 press and form the plate 16 under the pressure action of the spring 12; the upper die holder 4 continues to move downwards, the spring 12 starts to compress, the trimming die 5 and the punch 9 enter the punch-die 14, the edge of the sheet material 16 is cut off, and meanwhile, a hole for forming the sheet material 16 is punched.
According to the invention, through computer CAE (auxiliary stamping forming) simulation analysis, the force required for extruding the molded surface of the part 18 is firstly calculated to select a proper elastic element (spring 12), so that the initial pressure of the elastic element is greater than the force required for forming the part 18, and the sheet material 16 is firstly pressed and formed by the pressure plate 10 under the action of the spring 12 before the trimming female die 5 and the punch 9 enter the male and female dies 14; and the upper die holder 4 continues to move downwards, the edge of the pressed sheet material 16 is cut off through the trimming female die 5 and the punch 9, and an inner hole of the sheet material is punched at the same time, so that the forming of the part 18 and the one-time punching of trimming and punching are completed.
Claims (2)
1. The utility model provides a take shape side cut compound die that punches a hole, guide pin bushing (3) are installed on upper die base (4), and guide pillar (2) are installed on die holder (1), its characterized in that: a punch (9) is fixed on a fixing plate (6), a trimming die (5) and the fixing plate (6) are fixed on an upper die holder (4) through a bolt I (7) and a positioning pin I (8), a pressure plate (10) is hung below the fixing plate (6) through a limiting bolt (11) penetrating through the upper die holder (4), the pressure plate (10) is arranged in an inner hole of the trimming die (5), and a spring (12) penetrates through the fixing plate (6) and acts between the upper die holder (4) and the pressure plate (10); the positioning block (17) is arranged on the lower die holder (1), the punch-die (14) is fixed on the lower die holder (1) through a second bolt (13) and a second positioning pin (15), and the punch-die (14) faces the pressure plate (10); the plate (16) is positioned on the convex-concave die (14) through the positioning block (17), the upper die base (4) drives the fixing plate (6), the trimming concave die (5) and the pressure plate (10) to move downwards together, the pressure plate (10) starts to contact with the plate (16), and the pressure plate (10) and the convex-concave die (14) press and form the plate (16) under the pressure action of the spring (12); the upper die holder (4) continues to move downwards, the spring (12) starts to be compressed, the trimming female die (5) and the punch (9) enter the male die and the female die (14), the edge of the plate (16) is cut off, and simultaneously, a forming hole is punched.
2. The form trim punch compound die of claim 1, wherein: the positioning block (17) is positioned on one side of the plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460773.3A CN112296187A (en) | 2020-05-27 | 2020-05-27 | Forming, trimming and punching compound die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010460773.3A CN112296187A (en) | 2020-05-27 | 2020-05-27 | Forming, trimming and punching compound die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112296187A true CN112296187A (en) | 2021-02-02 |
Family
ID=74336506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010460773.3A Withdrawn CN112296187A (en) | 2020-05-27 | 2020-05-27 | Forming, trimming and punching compound die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112296187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117340133A (en) * | 2023-10-30 | 2024-01-05 | 杭州普安科技有限公司 | A crimping, punching and shearing integrated mold |
-
2020
- 2020-05-27 CN CN202010460773.3A patent/CN112296187A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117340133A (en) * | 2023-10-30 | 2024-01-05 | 杭州普安科技有限公司 | A crimping, punching and shearing integrated mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210202 |