CN211100993U - Plate cold stamping part hole periphery flanging combined die - Google Patents
Plate cold stamping part hole periphery flanging combined die Download PDFInfo
- Publication number
- CN211100993U CN211100993U CN201920628438.2U CN201920628438U CN211100993U CN 211100993 U CN211100993 U CN 211100993U CN 201920628438 U CN201920628438 U CN 201920628438U CN 211100993 U CN211100993 U CN 211100993U
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- CN
- China
- Prior art keywords
- cushion block
- flanging
- seat
- die
- hole
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- 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.)
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- 239000000463 material Substances 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000007306 turnover Effects 0.000 abstract description 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 2
- 230000008092 positive effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000004080 punching Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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Abstract
The utility model provides a panel cold stamping part hole week turn-ups assembling die, includes: the punch head seat is fastened on the upper die seat and movably matched with the upper die seat to penetrate through the insert, the punch head is fastened on the punch head seat through a screw rod, and the insert is assembled on the lower die seat to support the stamping part. The improvement is as follows: the fixed mounting panel of going up on the die holder bottom surface, lock at the mounting panel and attach a nitrogen gas spring, a guide bar is supported to nitrogen gas spring upper end, and the guide bar movable fit passes the guide holder, and the ejector pin is connected through helicitic texture to the guide bar upper end, and the ejector pin movable fit passes inserting on the die holder, runs through the columniform pressure flitch, cushion, the cushion stay tube of assembly with ejector pin axle center position screw complex screw rod in the ejector pin upper end, the positive effect of the utility model is that: the stress state of the turnover part in the hole flanging on the plate is changed, the product defect that the end part of the flanging is cracked when the flanging is higher is avoided, the precision of the flanging hole can be improved, the product percent of pass is improved, the material cost is reduced, and the economic benefit is improved.
Description
Technical Field
The utility model belongs to the mechanical equipment field, concretely relates to hole flanging dies on car cold stamping plate.
Background
The flanging hole is common on the cold-stamped plate of the automobile. In the prior flanging process, a punch driven by an upper die and a hole die fixed on a lower die are directly used for punching and flanging holes, and the used die comprises the punch assembled on the upper die through a mounting seat and the hole die arranged on the lower side of a plate. The descending perusal of the upper die is the punching process speed of the punch. The prior hole flanging process has the defects that cracks often appear at the flanging end of a hole, and particularly, when the ratio of the flanging height h to the hole diameter D exceeds 0.1, the cracks are almost inevitable. Affecting the quality of the plate product.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a panel cold stamping part hole week turn-ups assembling die for in the hole turn-ups technology on the cold punching plate after the shaping or in the forming process, overcome current turn-ups mould and often appear the not enough of crackle at required turn-ups internal turn-ups end of height within range.
The utility model discloses a hole week turn-ups assembling die includes: the punch head seat is fastened on the upper die seat and movably matched with the upper die seat to penetrate through the insert, the punch head is fastened on the punch head seat through a screw rod, and the insert is assembled on the lower die seat to support the stamping part.
The improvement is as follows: the upper end of the ejector rod penetrates through a cylindrical pressure plate, a cushion block and a cushion block supporting pipe which are assembled in a penetrating way by a screw rod matched with a screw hole at the axis position of the ejector rod, wherein the pressure plate and the punch head have the same diameter, the cushion block is movably matched in a groove at the upper end of the pressure plate, the height of the cushion block and the depth of the groove for accommodating the cushion block at the upper end of the pressure plate have a height difference of one material plate thickness, the lower end of the cushion block is provided with a cushion block supporting pipe which penetrates through the pressure plate and falls on the ejector rod, and the cushion block supporting pipe enables a clearance of 1.5-2.5mm to be formed between the cushion block and the bottom surface of the pressure plate when the punch head does not work.
In order to prevent the guide rod from falling off downwards due to the connection problem between the guide rod and the ejector rod in the process of disassembling the nitrogen spring; the lower end of the guide seat is provided with a clamping plate which radially extends into the guide rod assembly hole by a screw, and a missing part on a cylindrical surface matched with the clamping plate is arranged in the sliding stroke of the guide rod.
The utility model discloses a theory of operation and concrete use are: when the sheet metal component is placed, the pressure plate firstly conducts a profile guide adjustment process, when an upper die moves downwards, the flanging punch moves downwards along with the downward movement to the upper surface of the cushion block, the cushion block is supported against the resistance of the nitrogen spring in the downward movement process, the downward movement force of the upper die is greater than the elastic force of the nitrogen spring, the upper die still continues to move downwards, but the speed is reduced, meanwhile, the cushion block plays a role in balancing the stress of the sheet metal component when the flanging punch moves downwards to contact, the flanging punch can simultaneously and stably press the plate position needing flanging, the material sheet at the position in the flanging process flows flatly, and the defects that cracks and the like cannot occur after the flanging occurs due to the overhigh flowing speed are avoided. When the flanging is completed, the flanging punch moves upwards along with the upper die to wait for entering the next working cycle.
The utility model has the advantages that: by additionally arranging the cushion block and the pressure plate supported by the nitrogen spring and configuring the corresponding supporting force transmission structure and the component gap, the stress state of the turnover part in the hole flanging on the plate is changed, the product defect that the end part of the flanging is cracked when the flanging is higher (the flanging height h/aperture D is more than or equal to 0.1) is avoided, the precision of the flanging hole can be improved, the product percent of pass is improved, the material cost is reduced, and the economic benefit is improved.
Drawings
Fig. 1 is a diagram of a hole flanging die for cold stamping a plate in the prior art.
Fig. 2 is a front view of the present invention.
Fig. 3 is a front view of the material pressing plate of the present invention.
Fig. 4 is a front view of the cushion block of the present invention.
Fig. 5 is a front view of the spacer stay of the present invention.
Fig. 6 is a front view of the ejector pin of the present invention.
Fig. 7 is a front view of the guide seat of the present invention.
Fig. 8 is a front view of the clamping plate of the present invention.
Fig. 9 is a front view of the guide bar of the present invention.
Fig. 10 is a front view of the mounting plate of the present invention.
Detailed Description
Referring to fig. 2, the combined die for flanging the hole periphery of the cold stamping part of the plate comprises a punch seat 1 which is fastened on an upper die seat by a screw rod and movably matched with an insert (not shown), a punch 2 which is fastened on the punch seat 1 by the screw rod, and the insert (not shown) which is assembled on a lower die and supports the stamping part.
Referring to fig. 2-10, a mounting plate 11 is fixed on the bottom surface of the lower die holder, a nitrogen spring 10 is locked on the mounting plate, a guide rod 9 is supported at the upper end of the nitrogen spring, the guide rod 9 passes through the guide seat 7 in a movable fit manner, an external threaded column with one end having a diameter smaller than the fitting surface with the guide seat 7 is arranged at the upper end of the guide rod 9, the guide rod 9 is connected with an axis threaded hole ejector rod 6 through a threaded column, the guide rod 9 props the ejector rod 6 through a shoulder at the upper end of the threaded column, the ejector rod 6 passes through an insert (not shown) arranged on the lower die in a movable fit manner, a cylindrical pressure plate 3, a cushion block 4 and a cushion block supporting tube 5 are assembled at the upper end of the ejector rod 6 in a penetrating manner by a screw rod matched with a threaded hole at the axis position of the ejector rod, wherein the pressure plate 3 and the punch 2 have the same diameter, the cushion block 4 is movably matched in a groove at the upper end, the lower end of the cushion block 4 is provided with a cushion block supporting pipe 5 which penetrates through the material pressing plate 3 and falls on the material ejecting rod 6, and the cushion block supporting pipe 5 enables a 2mm gap to be formed between the cushion block and the bottom surface of the material pressing plate when the punch does not work. The lower end of the guide seat 7 is provided with a clamping plate 8 which radially extends into the guide rod assembly hole by a screw, and a missing part on a cylindrical surface matched with the clamping plate 8 is arranged in the sliding stroke of the guide rod 9.
Claims (2)
1. Plate cold stamping part hole week turn-ups assembling die includes: the punch seat fixed on the upper die seat movably matched with the upper die seat to penetrate through the insert, the punch fixed on the punch seat by a screw and the hole flanging insert assembled on the lower die to support a stamping part are characterized in that: the upper end of the ejector rod penetrates through a cylindrical pressure plate, a cushion block and a cushion block supporting pipe which are assembled in a penetrating way by a screw rod matched with a screw hole at the axis position of the ejector rod, wherein the pressure plate and the punch head have the same diameter, the cushion block is movably matched in a groove at the upper end of the pressure plate, the height of the cushion block and the depth of the groove for accommodating the cushion block at the upper end of the pressure plate have a height difference of one material plate thickness, the lower end of the cushion block penetrates through the pressure plate and falls on the cushion block supporting pipe on the ejector rod, and the cushion block supporting pipe enables a clearance of 1.5-2.5mm to be formed between the cushion block and the bottom surface of the pressure plate when the punch head does not work.
2. The plate cold stamping part hole periphery flanging combination die as claimed in claim 1, wherein: the lower end of the guide seat is provided with a clamping plate which radially extends into the guide rod assembly hole by a screw, and a missing part on a cylindrical surface matched with the clamping plate is arranged in the sliding stroke of the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628438.2U CN211100993U (en) | 2019-05-05 | 2019-05-05 | Plate cold stamping part hole periphery flanging combined die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628438.2U CN211100993U (en) | 2019-05-05 | 2019-05-05 | Plate cold stamping part hole periphery flanging combined die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211100993U true CN211100993U (en) | 2020-07-28 |
Family
ID=71708108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920628438.2U Active CN211100993U (en) | 2019-05-05 | 2019-05-05 | Plate cold stamping part hole periphery flanging combined die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211100993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293164A (en) * | 2019-05-05 | 2019-10-01 | 格致汽车科技股份有限公司 | Plate cold-stamped part hole week flange composable mold |
-
2019
- 2019-05-05 CN CN201920628438.2U patent/CN211100993U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110293164A (en) * | 2019-05-05 | 2019-10-01 | 格致汽车科技股份有限公司 | Plate cold-stamped part hole week flange composable mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Combination Mold for Flanging Around Holes of Cold Stamped Sheet Metal Parts Effective date of registration: 20231113 Granted publication date: 20200728 Pledgee: Agricultural Bank of China Limited Liaoyuan branch Pledgor: GZ TOOLING GROUP AUTOMOBILE TECHNOLOGY Co.,Ltd. Registration number: Y2023220000127 |