CN108772474B - Cold extrusion thinning continuous stamping die - Google Patents
Cold extrusion thinning continuous stamping die Download PDFInfo
- Publication number
- CN108772474B CN108772474B CN201810687562.6A CN201810687562A CN108772474B CN 108772474 B CN108772474 B CN 108772474B CN 201810687562 A CN201810687562 A CN 201810687562A CN 108772474 B CN108772474 B CN 108772474B
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- die
- lower die
- upper die
- hollow
- punching
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- 238000000641 cold extrusion Methods 0.000 title claims abstract description 74
- 238000004080 punching Methods 0.000 claims abstract description 75
- 238000007493 shaping process Methods 0.000 claims abstract description 54
- 238000009966 trimming Methods 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000010409 ironing Methods 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 6
- 238000010008 shearing Methods 0.000 claims description 4
- 239000000047 product Substances 0.000 description 26
- 238000003754 machining Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- 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
- B21D37/08—Dies with different parts for several steps in a process
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a cold extrusion thinning continuous stamping die, which comprises an upper die and a lower die; the upper die moves relative to the lower die; the cold extrusion thinning continuous stamping die is provided with a plurality of working steps; the steps are ordered as follows: punching a positioning hole, pre-cutting, pre-punching, a first hollow step, curved surface forming, a first forming direction adjustment, a first shaping, a second hollow step, fine punching, chamfering, a third hollow step, cold extrusion forming, a fourth hollow step, a second shaping, a fifth hollow step, a first trimming, a sixth hollow step, a second forming direction adjustment, boss forming, a seventh hollow step, a second trimming, punching, an eighth hollow step, grid forming and finished product cutting-out. The invention has the advantage of providing the cold extrusion thinning continuous stamping die with high processing precision and high processing efficiency.
Description
Technical Field
The invention relates to a continuous stamping die, in particular to a continuous stamping die for preparing steering parts for automobiles.
Background
A stamping die is a special process equipment for processing materials into parts or semi-finished products in cold stamping processing, and is called a cold stamping die. Stamping is a press working method in which a material is pressed at room temperature by a die attached to a press to be separated or plastically deformed, thereby obtaining a desired part. In general, the die stamping has a plurality of steps, and the arrangement of the steps is an important factor affecting the die stamping precision and efficiency. Unreasonable process step settings can lead to low product machining precision and low machining efficiency.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a cold extrusion thinning continuous stamping die.
In order to achieve the above object, the present invention adopts the following technical scheme:
A cold extrusion thinning continuous stamping die comprises an upper die and a lower die; the upper die moves relative to the lower die; the cold extrusion thinning continuous stamping die is provided with a plurality of working steps which are ordered as follows; punching a positioning hole, pre-cutting, pre-punching, a first hollow step, curved surface forming, first adjusting a forming direction, first shaping, second hollow step, first fine punching, second fine punching, punching a lower chamfer, punching an upper chamfer, third hollow step, cold extrusion preforming, cold extrusion forming, cold extrusion shaping, fourth hollow step, second shaping, third shaping, fifth hollow step, first trimming, sixth hollow step, second adjusting a forming direction, boss forming, seventh hollow step, second trimming, third trimming, punching, eighth hollow step, grid forming and finished product cutting-out piece;
The upper die is provided with a positioning hole punching upper die, a precut upper die, a pre-punching upper die, a first blank upper die, a curved surface forming upper die, a first forming direction adjusting upper die, a first shaping upper die, a second blank upper die, a first fine punching upper die, a second fine punching upper die, a punching lower chamfer upper die, a punching upper chamfer upper die, a third blank upper die, a cold extrusion preforming upper die, a cold extrusion forming upper die, a cold extrusion shaping upper die, a fourth blank upper die, a second shaping upper die, a third shaping upper die, a fifth blank upper die, a first trimming upper die, a sixth blank upper die, a second forming direction adjusting upper die, a boss forming upper die, a seventh blank upper die, a second trimming upper die, a punching upper die, an eighth blank upper die, a grid forming upper die and a finished product cutting out upper die which are sequentially corresponding to a plurality of steps;
The lower die is provided with a positioning hole punching lower die, a pre-cutting lower die, a pre-punching lower die, a first hollow lower die, a curved surface forming lower die, a first forming direction adjusting lower die, a first shaping lower die, a second hollow lower die, a first fine punching lower die, a second fine punching lower die, a punching chamfer lower die, a third hollow lower die, a cold extrusion preforming lower die, a cold extrusion forming lower die, a cold extrusion shaping lower die, a fourth hollow lower die, a second shaping lower die, a third shaping lower die, a fifth hollow lower die, a first trimming lower die, a sixth hollow lower die, a second forming direction adjusting lower die, a boss forming lower die, a seventh hollow lower die, a second trimming lower die, a third trimming lower die, a punching lower die, an eighth hollow lower die, a grid forming lower die and a finished product cutting-out lower die which are sequentially corresponding to a plurality of steps.
A cold extrusion thinning continuous stamping die comprises an upper die and a lower die; the upper die moves relative to the lower die; the cold extrusion thinning continuous stamping die is provided with a plurality of working steps which are ordered as follows; punching a positioning hole, pre-cutting, pre-punching, a first hollow step, curved surface forming, a first adjustment forming direction, a first shaping, a second hollow step, a first fine punching, a lower chamfering, an upper chamfering, a third hollow step, a cold extrusion pre-forming, cold extrusion shaping, a fourth hollow step, a second shaping, a fifth hollow step, a first trimming, a sixth hollow step, a second adjustment forming direction, a boss forming, a seventh hollow step, a second trimming, a third trimming, a punching, an eighth hollow step, grid forming and a finished product cutting-out piece;
The upper die is provided with a plurality of process steps of a positioning hole punching upper die, a precut upper die, a pre-punching upper die, a first blank upper die, a curved surface forming upper die, a first forming direction adjusting upper die, a first shaping upper die, a second blank upper die, a first fine punching upper die, a punching chamfer upper die, a third blank upper die, a cold extrusion preforming upper die, a cold extrusion forming upper die, a cold extrusion shaping upper die, a fourth blank upper die, a second shaping upper die, a fifth blank upper die, a first trimming upper die, a sixth blank upper die, a second forming direction adjusting upper die, a boss forming upper die, a seventh blank upper die, a second trimming upper die, a third trimming upper die, a punching upper die, an eighth blank upper die, a grid forming upper die and a finished product cutting-out upper die;
the lower die is provided with a plurality of process steps of a positioning hole punching lower die, a pre-cutting lower die, a pre-punching lower die, a first hollow lower die, a curved surface forming lower die, a first forming direction adjusting lower die, a first shaping lower die, a second hollow lower die, a first fine punching lower die, a chamfering lower die, an upper chamfering lower die, a third hollow lower die, a cold extrusion preforming lower die, a cold extrusion forming lower die, a cold extrusion shaping lower die, a fourth hollow lower die, a second shaping lower die, a fifth hollow lower die, a first trimming lower die, a sixth hollow lower die, a second forming direction adjusting lower die, a boss forming lower die, a seventh hollow lower die, a second trimming lower die, a third trimming lower die, a punching lower die, an eighth hollow lower die, a grid forming lower die and a finished product cutting lower die.
Further, the cold extrusion thinning continuous stamping die is provided with a process step comprising a third shaping step; the third shaping is arranged between the second shaping and the fifth air step; the upper die is provided with a third shaping upper die; the lower die is provided with a third shaping lower die.
Further, the cold extrusion thinning continuous stamping die is provided with a process step of second fine stamping; the second fine blanking is arranged between the first fine blanking and the blanking chamfer; the upper die is provided with a second fine blanking upper die; the lower die is provided with a second fine blanking lower die.
Further, the thinning rate of the stamping product of the cold extrusion thinning continuous stamping die is more than 50% and less than 60%.
Further, the thinning rate of the stamping product of the cold extrusion thinning continuous stamping die is more than 53% and less than 54%.
Further, the thickness of the product material belt punched by the cold extrusion thinning continuous punching die is more than 4mm and less than 5mm.
Further, the thickness of the product material strip punched by the cold extrusion thinning continuous punching die is 4.5mm.
The invention has the advantage that the cold extrusion thinning continuous stamping die can rapidly prepare the steering part. Compared with the existing machining mode of producing steering parts one by one, the machining method has the advantages of higher machining precision and high machining efficiency. Higher thinning rates can be achieved for thicker raw materials.
Drawings
FIG. 1 is a schematic illustration of a cold extrusion ironing continuous stamping die of the present invention;
FIG. 2 is a schematic view of another view of the cold extrusion ironing continuous stamping die of FIG. 1;
FIG. 3 is a schematic view of a part of the structure of a lower die of the cold extrusion ironing continuous stamping die of FIG. 1;
FIG. 4 is a schematic view of a part of the structure of an upper die of the cold extrusion ironing continuous stamping die of FIG. 2;
fig. 5 is a schematic diagram of corresponding steps of a product strip of the cold-extrusion ironing continuous stamping die of fig. 1.
Detailed Description
The invention is described in detail below with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 5, a cold extrusion thinning continuous stamping die 100 includes an upper die 101 and a lower die 102; the upper die 101 moves relative to the lower die 103; the cold extrusion thinning continuous stamping die 100 is provided with a plurality of process steps, which are ordered as follows; the method comprises the steps of punching a positioning hole 1, pre-cutting 2, pre-punching 3, a first hollow step 4, curved surface forming 5, a first adjusting forming direction 6, a first shaping 7, a second hollow step 8, a first fine punching 9, a second fine punching 10, a punching chamfer 11, a punching chamfer 12, a third hollow step 13, a cold extrusion pre-forming 14, a cold extrusion forming 15 and a cold extrusion shaping 16, a fourth hollow step 17, a second shaping 18, a third shaping 19, a fifth hollow step 20, a first trimming 21, a sixth hollow step 22, a second adjusting forming direction 23, a boss forming 24, a seventh hollow step 25, a second trimming 26, a third trimming 27, a punching 28, an eighth hollow step 29, a grid forming 30 and a finished product cutting 31.
The upper die 101 is provided with a punch positioning hole upper die 1a, a precut upper die 2a, a pre-punch upper die 3a, a first hollow upper die 4a, a curved surface forming upper die 5a, a first adjustment forming direction upper die 6a, a first shaping upper die 7a, a second hollow upper die 8a, a first fine punch upper die 9a, a second fine punch upper die 10a, a punch lower chamfer upper die 11a, a punch upper chamfer upper die 12a, a third hollow upper die 13a, a cold extrusion preformed upper die 14a, a cold extrusion forming upper die 15a, a cold extrusion forming upper die 16a, a fourth hollow upper die 17a, a second shaping upper die 18a, a third shaping upper die 19a, a fifth hollow upper die 20a, a first trimming upper die 21a, a sixth hollow upper die 22a, a second adjustment forming direction upper die 23a, a boss forming upper die 24a, a seventh hollow upper die 25a, a second trimming upper die 26a, a third trimming upper die 27a, a cut-off upper die 28a, and an eighth die 30 a.
The lower die 102 is provided with a pilot hole lower die 1b, a pre-cut die 2b, a pre-punched lower die 3b, a first hollow lower die 4b, a curved surface forming lower die 5b, a first adjustment forming direction lower die 6b, a first shaping lower die 7b, a second hollow lower die 8b, a first fine-punched lower die 9b, a second fine-punched lower die 10b, a punching chamfer lower die 11b, a punching chamfer lower die 12b, a third hollow lower die 13b, a cold extrusion pre-forming lower die 14b, a cold extrusion forming lower die 15b, a cold extrusion shaping lower die 16b, a fourth hollow lower die 17b, a second shaping lower die 18b, a third shaping lower die 19b, a fifth hollow lower die 20b, a first trimming lower die 21b, a sixth hollow lower die 22b, a second adjustment forming direction lower die 23b, a boss forming lower die 24b, a seventh hollow lower die 25b, a second trimming lower die 26b, a third trimming lower die 27b, a punching lower die 28b, and an eighth hollow lower die 30b, which correspond to the steps in this order.
Specifically, the positioning hole 1 is used for punching the product material belt 102 into a positioning hole in the subsequent process step; the pre-cutting 2 pre-cuts each step to prevent the influence or interference of the front and back steps; the pre-punching 3 is controlled to be of variable thinning rate, and a bottom hole is pre-punched; the first, second, third, fourth, fifth, sixth, seventh and eighth air-steps 4, 8, 13, 17, 20, 22, 25 and 29 are provided to prevent interference of the previous and subsequent steps from affecting the strength of the mold; the molding is used for carrying out curved surface molding processing on the product material belt 102; the first adjusting forming direction 6 rotates the product material belt 102 to make the cold extrusion forming 15 position consistent with the Z axis; the first shaping 7 and the second shaping control the resilience of the product web 102 after the shaping step; the first fine blanking 9 and the second fine blanking 10 improve the roughness of the shearing surface and prepare for the flow rate of cold extrusion materials; punching down the chamfer 11 to prevent burrs from being generated on the lower surface after shearing; the punching of the chamfer 12 enables control of the port shape after molding; the first trimming 21, the second trimming 26 and the third trimming 27 remove excess material outside the product; the second forming direction 23 is adjusted to adjust the angle of the formed product material belt 102 to make the surface of the subsequent process step consistent with the Z axis; forming 24 a convex hull on the product; punching holes in the product by punching holes 28; the mesh molding 30 presses out the product boss surface mesh.
As a preferred embodiment, the thinning rate of the punched product of the cold-extrusion thinning continuous punching die 100 is more than 50% and less than 60%.
As a preferred embodiment, the thinning rate of the punched product of the cold-extrusion thinning continuous punching die 100 is more than 53% and less than 54%.
As a preferred embodiment, the thickness of the product web 102 punched by the cold-extrusion ironing continuous stamping die 100 is greater than 4mm and less than 5mm.
As a preferred embodiment, the thickness of the product web 102 punched by the cold-extrusion ironing continuous stamping die 100 is 4.5mm.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the invention in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the invention.
Claims (3)
1. A cold extrusion thinning continuous stamping die comprises an upper die and a lower die; the upper die moves relative to the lower die; the cold extrusion thinning continuous stamping die is provided with a plurality of process steps, and is characterized in that: the plurality of steps are ordered as follows; punching a positioning hole, pre-cutting, pre-punching, a first hollow step, curved surface forming, a first adjustment forming direction, a first shaping, a second hollow step, a first fine punching, a lower chamfering, an upper chamfering, a third hollow step, a cold extrusion pre-forming, cold extrusion shaping, a fourth hollow step, a second shaping, a fifth hollow step, a first trimming, a sixth hollow step, a second adjustment forming direction, a boss forming, a seventh hollow step, a second trimming, a third trimming, a punching, an eighth hollow step, grid forming and a finished product cutting-out piece;
the upper die is provided with a positioning hole punching upper die, a precut upper die, a pre-punching upper die, a first hollow upper die, a curved surface forming upper die, a first adjusting forming direction upper die, a first shaping upper die, a second hollow upper die, a first fine punching upper die, a punching lower chamfering upper die, a punching upper chamfering upper die, a third hollow upper die, a cold extrusion preforming upper die, a cold extrusion forming upper die, a cold extrusion shaping upper die, a fourth hollow upper die, a second shaping upper die, a fifth hollow upper die, a first trimming upper die, a sixth hollow upper die, a second adjusting forming direction upper die, a boss forming upper die, a seventh hollow upper die, a second trimming upper die, a third trimming upper die, a punching upper die, an eighth hollow upper die, a grid forming upper die and a finished product cutting upper die which are sequentially corresponding to a plurality of working steps;
The lower die is provided with a positioning hole punching lower die, a pre-cutting lower die, a pre-punching lower die, a first hollow lower die, a curved surface forming lower die, a first forming direction adjusting lower die, a first shaping lower die, a second hollow lower die, a first fine punching lower die, a chamfering lower die, an upper chamfering lower die, a third hollow lower die, a cold extrusion preforming lower die, a cold extrusion forming lower die, a cold extrusion shaping lower die, a fourth hollow lower die, a second shaping lower die, a fifth hollow lower die, a first trimming lower die, a sixth hollow lower die, a second forming direction adjusting lower die, a boss forming lower die, a seventh hollow lower die, a second trimming lower die, a third trimming lower die, a punching lower die, an eighth hollow lower die, a grid forming lower die and a finished product cutting-out lower die which are sequentially corresponding to a plurality of working steps;
The cold extrusion thinning continuous stamping die is provided with a process step which also comprises a second fine stamping step; the second fine blanking is arranged between the first fine blanking and the blanking chamfer; the upper die is provided with a second fine blanking upper die; the lower die is provided with a second fine blanking lower die;
the thinning rate of the stamping product of the cold extrusion thinning continuous stamping die is more than 53% and less than 54%;
The pre-punching control molding thinning rate, and a bottom hole is pre-punched;
the first shaping and the second shaping control the rebound of the product material belt after the shaping process step; the first fine blanking and the second fine blanking improve the roughness of the shearing surface and prepare for the flow rate of cold extrusion materials; the lower surface of the lower cutter is prevented from generating burrs after shearing by punching the chamfer; the punch chamfer can control the shape of the port after molding.
2. The cold extrusion ironing continuous stamping die of claim 1, wherein:
The thickness of the product material belt punched by the cold extrusion thinning continuous punching die is more than 4mm and less than 5mm.
3. The cold extrusion ironing continuous stamping die of claim 2, wherein:
the thickness of the product material belt punched by the cold extrusion thinning continuous punching die is 4.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687562.6A CN108772474B (en) | 2018-06-28 | 2018-06-28 | Cold extrusion thinning continuous stamping die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810687562.6A CN108772474B (en) | 2018-06-28 | 2018-06-28 | Cold extrusion thinning continuous stamping die |
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| Publication Number | Publication Date |
|---|---|
| CN108772474A CN108772474A (en) | 2018-11-09 |
| CN108772474B true CN108772474B (en) | 2024-06-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810687562.6A Active CN108772474B (en) | 2018-06-28 | 2018-06-28 | Cold extrusion thinning continuous stamping die |
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| CN101342562A (en) * | 2008-08-15 | 2009-01-14 | 李悦 | Screw blade coiling and molding method, and molding equipment thereof |
| CN101966542A (en) * | 2010-09-27 | 2011-02-09 | 昌辉(上海)科技集团股份有限公司 | Thinning drawn punching process and die |
| CN103406446A (en) * | 2013-07-19 | 2013-11-27 | 天津华禹汽车模具有限公司 | Shock absorber support continuous punching die |
| CN204093949U (en) * | 2014-08-19 | 2015-01-14 | 湖南同冈科技发展有限责任公司 | One Seed packaged band continuous seepage mould |
| CN107824680A (en) * | 2017-11-24 | 2018-03-23 | 无锡龙筠模具制造有限公司 | The grading die stamping process of automobile shock branch pillar support |
| CN107983846A (en) * | 2017-12-29 | 2018-05-04 | 平湖爱驰威汽车零部件有限公司 | Sense nut stepping punching mould |
| CN209077576U (en) * | 2018-06-28 | 2019-07-09 | 浙江正鼎汽车零部件有限公司 | The thinning continuous stamping die of cold-extruded |
-
2018
- 2018-06-28 CN CN201810687562.6A patent/CN108772474B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342562A (en) * | 2008-08-15 | 2009-01-14 | 李悦 | Screw blade coiling and molding method, and molding equipment thereof |
| CN101966542A (en) * | 2010-09-27 | 2011-02-09 | 昌辉(上海)科技集团股份有限公司 | Thinning drawn punching process and die |
| CN103406446A (en) * | 2013-07-19 | 2013-11-27 | 天津华禹汽车模具有限公司 | Shock absorber support continuous punching die |
| CN204093949U (en) * | 2014-08-19 | 2015-01-14 | 湖南同冈科技发展有限责任公司 | One Seed packaged band continuous seepage mould |
| CN107824680A (en) * | 2017-11-24 | 2018-03-23 | 无锡龙筠模具制造有限公司 | The grading die stamping process of automobile shock branch pillar support |
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| Publication number | Publication date |
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| CN108772474A (en) | 2018-11-09 |
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