CN112642940A - Sheet metal part forming die with guide structure and automatic alignment method thereof - Google Patents
Sheet metal part forming die with guide structure and automatic alignment method thereof Download PDFInfo
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- CN112642940A CN112642940A CN202011573644.1A CN202011573644A CN112642940A CN 112642940 A CN112642940 A CN 112642940A CN 202011573644 A CN202011573644 A CN 202011573644A CN 112642940 A CN112642940 A CN 112642940A
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- guide
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- lower die
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- boss
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000002184 metal Substances 0.000 title claims abstract description 16
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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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
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention relates to a sheet metal part forming die with a guide structure and an automatic alignment method thereof, and belongs to the technical field of automatic guide of process equipment. The invention carries out surface finish machining on the upper die and the lower die, and the first guide block and the second guide block which are matched with each other and have a guide effect are respectively obtained on the four sides of the upper die and the lower die, so that the interaction between the upper die and the lower die is automatically adjusted and positioned, the aim of automatic guide is achieved, a die closing state with high precision is obtained, and the problems that the guide reliability is reduced and the quality of a formed part is influenced due to the scratch of a positioning device in actual production are solved.
Description
Technical Field
The invention relates to a sheet metal part forming die with a guide structure and an automatic alignment method thereof, and belongs to the technical field of automatic guide of process equipment.
Background
The sheet metal part has the advantages of light weight and high strength and rigidity, and is widely applied to the fields of light industry, automobiles, aerospace and the like. The sheet metal part has high forming production efficiency, and can form parts with larger size range and more complex shapes. The stability of the process equipment for forming sheet metal parts directly influences the profile quality of the formed parts. The guide device is used as a calibration positioning structure of the convex die and the concave die of the forming tool, directly influences the die closing state of forming process equipment, and further influences the forming quality of a formed piece.
The conventional mode adopts locating pin (guide pillar) and locating hole (guide pin bushing) cooperation and leads slide and guide way cooperation to lead, through passive direction, carries out the compound die simultaneously with the cooperation of male die, die and guider, has positioner fish tail phenomenon in the actual production, and the fish tail cumulative effect is obvious, causes the direction reliability to descend, influences forming piece quality. In turn, it is very necessary to provide a novel sheet metal part forming die with a guide structure.
Disclosure of Invention
The invention aims to solve the technical problems and provides a sheet metal part forming die with a guide structure and an automatic alignment method thereof.
The technical scheme of the invention is as follows:
a sheet metal part forming die with a guide structure comprises an upper die and a lower die, wherein the lower die comprises a strip-shaped lower die base body 1, a boss 2, a lower die table 3 and first guide blocks 4, the boss 2 is a quadrangular pyramid-shaped boss and is positioned on the strip-shaped lower die base body 1, the lower die table 3 is positioned above the boss 2, the centers of four side surfaces of the boss 2 are provided with the first guide blocks 4 distributed along the length direction, and guide cavities are formed among the four guide blocks 4 in a clearance mode; go up the mould include the bar on the mould base member 5, stopper 6, second guide block 7 and go up mould profile 8, four stopper 6 are located the bar respectively and go up the four corners department of mould base member 5, be equipped with second guide block 7 on the stopper 6, it is located the bar on the mould base member 5 to go up mould profile 8, when last mould and lower mould compound die, the guide way structure that constitutes between two adjacent second guide blocks 7 corresponds the cooperation with guide block 4, the guide cavity that the clearance formed between limit structure that stopper 6 and second guide block 7 constitute and four guide blocks 4 corresponds the cooperation, it corresponds the cooperation to go up mould profile 8 and lower mould platform 3.
Further, the lower mould table 3 is provided with a forming cavity which is concave inwards.
Further, the upper mould surface 8 is provided with a forming surface which is convex outwards.
Further, when the upper die and the lower die are closed, the gap between the guide surface of the first guide block 4 and the guide surface of the second guide block 7 is 0.2-0.4 mm.
The guiding and aligning method of the sheet metal part forming die comprises the following steps: the upper die is fixed, the lower die is horizontally placed on the workbench, the upper die moves downwards to realize automatic moving alignment of the lower die through the guide structure, the lower die is fixed, and alignment of the upper die and the lower die is completed.
The invention has the following beneficial effects: the invention carries out surface finish machining on the upper die and the lower die, and obtains a first guide block and a second guide block which are matched with each other and have a guide function on four sides of the upper die and the lower die respectively, so that the interaction between the upper die and the lower die is automatically adjusted and positioned, thereby achieving the purpose of automatic guide and obtaining a die closing state with high precision. And this application utilizes the driven direction that conventional location locating pin (guide pillar) and locating hole (guide pin bushing) cooperation and guide slide and guide way cooperation were carried out to inclined plane guide block automatically regulated direction replacement, has solved because the reliable performance of the direction that the fish tail of positioner fish tail leads to descends, influences the problem of forming piece quality in actual production.
Drawings
FIG. 1 is a schematic view of a lower mold structure;
FIG. 2 is a schematic view of the upper mold structure;
FIG. 3 is a schematic structural view of the upper mold and the lower mold when they are closed;
FIG. 4 is a force diagram of a point on the surface of the first guide block;
in the figure, 1-a strip-shaped lower die base body, 2-a boss, 3-a lower die table, 4-a first guide block, 5-a strip-shaped upper die base body, 6-a limiting block and 8-an upper die molded surface are arranged.
Detailed Description
The experimental procedures used in the following examples are conventional unless otherwise specified. The materials, reagents, methods and apparatus used, unless otherwise specified, are conventional in the art and are commercially available to those skilled in the art.
Embodiment mode 1:
as shown in fig. 1, 2 and 3, the forming die comprises an upper die and a lower die, the lower die comprises a strip-shaped lower die base body 1, a boss 2, a lower die table 3 and first guide blocks 4, the boss 2 is a quadrangular pyramid boss and is positioned on the strip-shaped lower die base body 1, the lower die table 3 is positioned above the boss 2, the first guide blocks 4 distributed along the length direction are arranged in the centers of four side surfaces of the boss 2, and guide cavities are formed among the four guide blocks 4 in a clearance mode; go up the mould include the bar on the mould base member 5, stopper 6, second guide block 7 and go up mould profile 8, four stopper 6 are located the bar respectively and go up the four corners department of mould base member 5, be equipped with second guide block 7 on the stopper 6, it is located the bar on the mould base member 5 to go up mould profile 8, when last mould and lower mould compound die, the guide way structure that constitutes between two adjacent second guide blocks 7 corresponds the cooperation with guide block 4, the guide cavity that the clearance formed between limit structure that stopper 6 and second guide block 7 constitute and four guide blocks 4 corresponds the cooperation, it corresponds the cooperation to go up mould profile 8 and lower mould platform 3.
Wherein, the lower mould table 3 is provided with a concave forming cavity, the upper mould surface 8 is provided with a convex forming surface, and the forming cavity is correspondingly matched with the forming surface.
And when the upper die and the lower die are closed, the gap between the guide surface of the first guide block 4 and the guide surface of the second guide block 7 is 0.2-0.4 mm.
Analyzing the guiding principle of the die:
and (3) taking any point A of the first guide block 4 at the contact position of the lower die after die assembly, and carrying out stress analysis, wherein as shown in fig. 4, the upper die applies force F to the point A of the lower die, and the point A decomposes the force F into a horizontal force F1 and a vertical force F2. Namely, when the upper die is fixed, the die is horizontally placed on the workbench, and the upper die moves downwards to push the lower die to move and align along the stress direction through a horizontal acting force F1.
In a theoretical state, the gap between the guide surfaces of the upper die and the lower die is 0.2-0.4 mm, the guide surfaces of the upper die and the lower die are not contacted and are not stressed in a complete die assembly state, the upper die and the lower die are leveled by a horizontal adjusting surface after die assembly, and the guide surfaces on the periphery are adjusted and aligned by a horizontal acting force F1 after stress after die assembly; the method can realize automatic adjustment and guiding of the upper die and the lower die in the forming process.
After the die is closed, the gap between the two side surfaces of the upper die and the lower die is horizontally adjusted to be 0.3-0.5 mm, the tool leveling is achieved through the mutual matching action between the two side surfaces of the peripheral horizontal adjusting surfaces, and the two side surfaces of the adjusting surfaces are designed in a wedge shape to be used as auxiliary guide alignment.
The guiding test of the die comprises the following steps:
an upper die of the tool is fixed, after the lower die is completely closed in a horizontal state, a certain closing force is applied to the tool after the die is closed, and automatic adjustment and guiding are realized through interaction of the peripheral guide surfaces.
And (3) detecting front and back and left and right finished surfaces by a dial indicator instrument, and checking the alignment effect of the upper die and the lower die. And after the lower die is properly adjusted and moved, re-testing, and detecting the result of the automatic adjustment guiding test through multiple tests.
The test direction alignment effect of many times after detecting is preferred, and the test detection direction result all is less than 0.2mm, and the forming part profile meets the requirements, and upper and lower mould guide surface wearing and tearing are little.
The method adopts multiple modes of horizontal adjustment, peripheral guide and wedge-shaped auxiliary adjusting surfaces for redundant guide, and automatically adjusts and guides through the upper die and the lower die.
The method is suitable for guiding the process equipment for forming the sheet metal part.
Claims (5)
1. The sheet metal part forming die with the guide structure is characterized by comprising an upper die and a lower die, wherein the lower die comprises a strip-shaped lower die base body (1), a boss (2), a lower die table (3) and first guide blocks (4), the boss (2) is a quadrangular pyramid-shaped boss, the boss (2) is positioned on the strip-shaped lower die base body (1), the lower die table (3) is positioned above the boss (2), the first guide blocks (4) distributed along the length direction are arranged in the centers of four side surfaces of the boss (2), and guide cavities are formed among the four guide blocks (4) in a clearance mode; go up the mould include the bar on mould base member (5), stopper (6), second guide block (7) and mould profile (8), four stopper (6) are located the four corners department of mould base member (5) on the bar respectively, be equipped with second guide block (7) on stopper (6), it is located the bar on mould base member (5) to go up mould profile (8), when last mould and lower mould compound die, the guide way structure that constitutes between two adjacent second guide blocks (7) corresponds the cooperation with first guide block (4), the direction cavity that the clearance formed corresponds the cooperation between limit structure that stopper (6) and second guide block (7) constitute and four first guide block (4), it corresponds the cooperation to go up mould profile (8) and lower mould platform (3).
2. The forming die for the sheet metal part with the guide structure as claimed in claim 1, wherein the lower molding table (3) is provided with a forming cavity which is concave inwards.
3. The sheet metal part forming die with the guide structure as claimed in claim 1, wherein the upper die surface (8) is provided with a forming surface which is convex outward.
4. The sheet metal part forming die with the guide structure is characterized in that when the upper die and the lower die are closed, the gap between the guide surface of the first guide block (4) and the guide surface of the second guide block (7) is 0.2-0.4 mm.
5. The method of claim 1, wherein the method comprises: the upper die is fixed, the lower die is horizontally placed on the workbench, the upper die moves downwards to realize automatic moving alignment of the lower die through the guide structure, the lower die is fixed, and alignment of the upper die and the lower die is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573644.1A CN112642940B (en) | 2020-12-24 | 2020-12-24 | Sheet metal part forming die with guide structure and automatic alignment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011573644.1A CN112642940B (en) | 2020-12-24 | 2020-12-24 | Sheet metal part forming die with guide structure and automatic alignment method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112642940A true CN112642940A (en) | 2021-04-13 |
| CN112642940B CN112642940B (en) | 2024-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011573644.1A Active CN112642940B (en) | 2020-12-24 | 2020-12-24 | Sheet metal part forming die with guide structure and automatic alignment method thereof |
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| CN (1) | CN112642940B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985607A (en) * | 2022-04-29 | 2022-09-02 | 沈阳飞机工业（集团）有限公司 | Guide sliding plate connecting structure capable of realizing self-alignment of hot forming die |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004193473A (en) * | 2002-12-13 | 2004-07-08 | Toshiba Corp | Molding die for semiconductor device |
| CN104209406A (en) * | 2013-06-05 | 2014-12-17 | 上汽通用五菱汽车股份有限公司 | Novel automobile beam forming process and stamping die structure |
| CN205519442U (en) * | 2016-01-19 | 2016-08-31 | 四川豪特精工装备股份有限公司 | Turbine blade is mould for forging die |
| CN106391880A (en) * | 2016-11-28 | 2017-02-15 | 湖南同心模具制造有限公司 | Novel sliding block type guide structure for upper mold and lower mold |
| CN206305313U (en) * | 2016-12-22 | 2017-07-07 | 重庆大江至信模具工业有限公司 | Automobile top cover middle transverse beam drawing die |
| CN208067125U (en) * | 2018-04-09 | 2018-11-09 | 郑州信昌汽车部品有限公司 | A kind of metal plate drawing shaping mould |
| CN210586619U (en) * | 2019-08-13 | 2020-05-22 | 成都飞机工业（集团）有限责任公司 | Mold closing device for forming viscous medium of inclined flange part |
-
2020
- 2020-12-24 CN CN202011573644.1A patent/CN112642940B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004193473A (en) * | 2002-12-13 | 2004-07-08 | Toshiba Corp | Molding die for semiconductor device |
| CN104209406A (en) * | 2013-06-05 | 2014-12-17 | 上汽通用五菱汽车股份有限公司 | Novel automobile beam forming process and stamping die structure |
| CN205519442U (en) * | 2016-01-19 | 2016-08-31 | 四川豪特精工装备股份有限公司 | Turbine blade is mould for forging die |
| CN106391880A (en) * | 2016-11-28 | 2017-02-15 | 湖南同心模具制造有限公司 | Novel sliding block type guide structure for upper mold and lower mold |
| CN206305313U (en) * | 2016-12-22 | 2017-07-07 | 重庆大江至信模具工业有限公司 | Automobile top cover middle transverse beam drawing die |
| CN208067125U (en) * | 2018-04-09 | 2018-11-09 | 郑州信昌汽车部品有限公司 | A kind of metal plate drawing shaping mould |
| CN210586619U (en) * | 2019-08-13 | 2020-05-22 | 成都飞机工业（集团）有限责任公司 | Mold closing device for forming viscous medium of inclined flange part |
Non-Patent Citations (1)
| Title |
|---|
| 朱红萍等: "基于FASTAMP汽车减震器钣金件冲压工艺及拉延模设计", 模具技术, no. 05, pages 13 - 17 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985607A (en) * | 2022-04-29 | 2022-09-02 | 沈阳飞机工业（集团）有限公司 | Guide sliding plate connecting structure capable of realizing self-alignment of hot forming die |
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| Publication number | Publication date |
|---|---|
| CN112642940B (en) | 2024-09-10 |
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