CN209753811U - Stamping die for punching part hole flanging synchronous chamfering - Google Patents
Stamping die for punching part hole flanging synchronous chamfering Download PDFInfo
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- CN209753811U CN209753811U CN201920280816.2U CN201920280816U CN209753811U CN 209753811 U CN209753811 U CN 209753811U CN 201920280816 U CN201920280816 U CN 201920280816U CN 209753811 U CN209753811 U CN 209753811U
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Abstract
The utility model discloses a stamping die of synchronous chamfer in punching press part hole flanging, through the front end at the hole flanging drift formation drive end to forming the chamfer face at the front end of taking off the material ejector pin, having realized the function of the synchronous chamfer in punching press part hole flanging, promptly through taking off the material ejector pin behind the punching press part hole flanging the hole flanging follow hole flanging die (die plate) ejecting in-process, borrow by the compression energy storage of taking off the material spring, do out the chamfer when utilizing the ejecting hole flanging of the chamfer face of taking off material ejector pin front end. Like this, just can reduce one step of chamfer process, consequently, the utility model discloses can reduce hole flanging punching press process, improve production efficiency, reduce the manufacturing cost of product.
Description
Technical Field
The utility model relates to a stamping die specifically is a stamping die who relates to a synchronous chamfer in punching press part hole flanging.
Background
The stamping die is a special process equipment for processing materials (metal or nonmetal) into parts (or semi-finished products) in cold stamping, and is called cold stamping die (commonly called cold stamping die). Hole flanging is a stamping process that angles the material around the inner hole into a standing flange.
At present, hole flanging is a common process characteristic on a stamped part, and some product hole flanging have chamfering process requirements, fig. 1 shows a product 100 structure needing to form a hole flanging 110 and a chamfer 120, and such a product usually needs to add a chamfering process step after hole flanging is completed. The process is complex, two sets of stamping dies are needed for forming, the production and processing efficiency is low, and the production cost is high.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a stamping die of synchronous chamfer in punching press part hole flanging can effectively reduce hole flanging technology process, improves production efficiency, reduces the manufacturing cost of product.
The technical scheme of the utility model is realized like this:
A punching die for punching synchronous chamfering of hole flanging of a part comprises an upper die and a lower die, wherein the upper die comprises an upper die base, a fixed plate and a stripper plate which are sequentially arranged from top to bottom, the lower die comprises a lower die base and a concave die plate which are sequentially arranged from bottom to top, the upper die further comprises a hole flanging punch, the hole flanging punch comprises a punch body and a conical driving end formed at the front end of the punch body, the rear end of the punch body is arranged between the fixed plate and the upper die base, and the front end of the punch body and the driving end penetrate through a punch avoiding hole in the stripper plate; the lower die further comprises a stripping mechanism, the stripping mechanism comprises a stripping ejector rod and a stripping spring, a chamfer surface is formed at the front end of the stripping ejector rod, the rear end of the stripping ejector rod and the stripping spring are mounted in a mounting groove hole in the lower die base, and the front end of the stripping ejector rod and the chamfer surface penetrate through a hole flanging yielding hole in the concave die plate; the hole flanging punch is right opposite to the hole flanging yielding hole, and a product subjected to hole flanging and pre-punching is positioned at the hole flanging yielding hole on the concave template.
Further, a discharging spring is arranged between the discharging plate and the fixing plate, and the discharging spring elastically separates the discharging plate and the fixing plate by a certain distance.
further, the punch body and the driving end are integrally formed, the punch body comprises a punch flange, a punch rear rod and a punch front rod which are integrally formed from top to bottom, the radial width of the punch front rod is smaller than that of the punch rear rod, and the punch front rod and the punch rear rod are in transition through an arc surface; and a flange groove corresponding to the punch flange and a rod hole corresponding to the punch rear rod are formed on the fixing plate, the punch flange is arranged in the flange groove, and the punch rear rod is arranged in the rod hole and is fixed by locking the upper die base and the fixing plate.
Further, the stripping ejector rod comprises a stripping front rod, a stripping rear rod and a stripping flange which are integrally formed from top to bottom, and the chamfer surface is positioned at the front end of the stripping front rod; the material stripping front rod and the material stripping rear rod are in transition through a cambered surface; hole flanging hole of stepping down is including dodging take off the first hole portion of material front mast and dodge take off the second hole portion of material back mast, it locates to take off the material flange the mounting groove is downthehole, take off the material spring mounting in the mounting groove is downthehole, and the butt in take off the bottom of material flange, make take off the material flange stop in the open position of second hole portion.
The utility model has the advantages that: the utility model provides a stamping die of synchronous chamfer in punching press part hole flanging, through the front end at the hole flanging drift formation drive end to form the chamfer face at the front end of taking off the material ejector pin, realized the function of the synchronous chamfer in punching press part hole flanging, promptly through taking off the material ejector pin behind the punching press part hole flanging the hole flanging follow hole flanging die (die plate) ejecting in-process, borrow the compression energy storage of taking off the material spring, do out the chamfer when utilizing the ejecting hole flanging of chamfer face of taking off material ejector pin front end. Like this, just can reduce one step of chamfer process, consequently, the utility model discloses can reduce hole flanging punching press process, improve production efficiency, reduce the manufacturing cost of product.
drawings
FIG. 1 is a schematic view of the present invention, which requires hole flanging and chamfering;
Fig. 2 is a schematic structural view of the stamping die in a closed state;
FIG. 3 is a schematic structural view of the stripping and chamfering states of the stamping die of the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 3.
Detailed Description
in order to clearly understand the technical contents of the present invention, the following examples are given in detail for the purpose of better understanding the contents of the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 2, 3 and 4, the punching die for punching synchronous chamfer of hole flanging of a punched part comprises an upper die 1 and a lower die 2, wherein the upper die comprises an upper die base 11, a fixed plate 12 and a discharging plate 13 which are sequentially arranged from top to bottom, the lower die comprises a lower die base 21 and a concave die plate 22 which are sequentially arranged from bottom to top, the upper die further comprises a hole flanging punch 14, the hole flanging punch comprises a punch body 141 and a conical driving end 142 formed at the front end of the punch body, the rear end of the punch body is arranged between the fixed plate and the upper die base, and the front end and the driving end of the punch body are arranged in a punch avoiding hole 131 in the discharging plate in a penetrating manner; the lower die further comprises a stripping mechanism 23, the stripping mechanism comprises a stripping ejector rod 231 and a stripping spring 232, a chamfered surface 2311 is formed at the front end of the stripping ejector rod, the rear end of the stripping ejector rod and the stripping spring are mounted in a mounting groove hole 211 on the lower die base, and the front end of the stripping ejector rod and the chamfered surface penetrate through a hole flanging yielding hole 221 on the cavity plate; the hole flanging punch is right opposite to the hole flanging yielding hole, and the product 100 subjected to hole flanging and pre-punching is positioned at the hole flanging yielding hole on the concave template. Therefore, the driving end is formed at the front end of the hole flanging punch, the chamfer surface is formed at the front end of the stripping ejector rod, the function of synchronous chamfering of hole flanging of the punching part is realized, namely, in the process of ejecting the hole flanging from a hole flanging female die (female die plate) through the stripping ejector rod after the hole flanging of the punching part, the chamfer is formed while the chamfer surface at the front end of the stripping ejector rod is used for ejecting the hole flanging by means of the compression energy storage of the stripping spring. Like this, just can reduce one step of chamfer process, consequently, the utility model discloses can reduce hole flanging punching press process, improve production efficiency, reduce the manufacturing cost of product.
Preferably, a discharging spring is installed between the discharging plate and the fixing plate, and the discharging spring elastically separates the discharging plate and the fixing plate by a certain distance. Usually, the one end of unloading spring is installed on the upper die base of last mould, and the other end passes the fixed plate to be connected with the stripper, can realize popping open the function of stripper.
Preferably, the punch body and the driving end are integrally formed, the punch body comprises a punch flange 1411, a punch rear rod 1412 and a punch front rod 1413 which are integrally formed from top to bottom, the radial width of the punch front rod is smaller than that of the punch rear rod, and the punch front rod and the punch rear rod are in arc surface transition; and a flange groove corresponding to the punch flange and a rod hole corresponding to the punch rear rod are formed on the fixing plate, the punch flange is arranged in the flange groove, and the punch rear rod is arranged in the rod hole and is fixed by locking the upper die base and the fixing plate. Therefore, the strength of the hole flanging punch can be increased, and the breakage of the hole flanging punch can be reduced.
Preferably, the stripping ejector rod comprises a stripping front rod 2312, a stripping rear rod 2313 and a stripping flange 2314 which are integrally formed from top to bottom, and the chamfered surface 2311 is located at the front end of the stripping front rod; the material stripping front rod and the material stripping rear rod are in transition through a cambered surface; hole flanging hole of stepping down is including dodging take off the first hole portion of material front mast and dodge take off the second hole portion of material back mast, it locates to take off the material flange the mounting groove is downthehole, take off the material spring mounting in the mounting groove is downthehole, and the butt in take off the bottom of material flange, make take off the material flange stop in the open position of second hole portion. Therefore, when the mold is opened, the stripping spring elastically presses against the bottom of the stripping flange of the stripping ejector rod, and the top of the stripping flange stops at the opening position of the second hole part of the hole flanging yielding hole, so that the effect of positioning the upward distance of the stripping ejector rod is achieved. When the die is closed, the driving end of the hole flanging punch firstly supports against the end part of the stripping front rod of the stripping ejector rod, so that the stripping ejector rod moves downwards, and the stripping spring is compressed to store energy, thereby realizing the yielding effect of the hole flanging punch. When the material is taken off and the chamfer is performed, the fixed plate and the stripper plate are opened, the hole flanging punch retracts, and the material taking-off ejector rod moves upwards to chamfer the inner side of the hole flanging of the product under the action of the restoring force of the material taking-off spring. After the chamfering is finished, the upper die and the lower die are opened, the stripping ejector rod continues to move upwards under the restoring force of the stripping spring, and a hole flanging product is ejected out of the hole flanging female die (the female die plate).
The utility model discloses stamping die of synchronous chamfer in punching press part hole flanging's theory of operation as follows:
And in the die opening state, the fixing plate and the discharging plate are in an opening state, and the front end and the driving end of the hole flanging punch retract into the punch avoiding hole in the discharging plate. The stripping spring elastically presses against the bottom of the stripping flange of the stripping ejector rod, and the top of the stripping flange stops at the opening position of the second hole part of the hole-flanging yielding hole, so that the effect of positioning the upward distance of the stripping ejector rod is achieved.
When the die is closed, the upper die and the lower die are matched, a product subjected to punching, hole flanging and pre-punching and positioned at the hole flanging yielding position of the concave die plate is clamped through the stripper plate and the concave die plate, then the fixed plate and the stripper plate are matched, the driving end of the hole flanging punch head firstly penetrates through the pre-punching hole in the product and drives the stripping ejector rod to retract, the stripping ejector rod is made to move downwards to compress the energy stored by the stripping spring, then the hole flanging punch head begins to perform hole flanging on the product, and the punching die reaches a die closing state after hole flanging.
when the die is opened, the fixed plate and the stripper plate are firstly opened, the hole flanging punch retracts, and the stripping ejector rod moves upwards to chamfer the inner side of the hole flanging of the product under the action of the restoring force of the stripping spring. After the chamfering is finished, the upper die and the lower die are opened, the stripping ejector rod continues to move upwards under the restoring force of the stripping spring, and a hole flanging product is ejected out of the hole flanging female die (the female die plate).
Therefore, the utility model discloses can reduce hole flanging punching press process, improve production efficiency, reduce the manufacturing cost of product.
The above embodiments have been described in detail with reference to the accompanying drawings. Those skilled in the art can make various modifications and changes to the above embodiments without departing from the spirit of the present invention, and the scope of the present invention is also covered by the appended claims.
Claims (4)
1. The utility model provides a stamping die of synchronous chamfer in punching press part hole flanging which characterized in that: the punching die comprises an upper die (1) and a lower die (2), wherein the upper die comprises an upper die base (11), a fixed plate (12) and a stripper plate (13) which are sequentially arranged from top to bottom, the lower die comprises a lower die base (21) and a concave die plate (22) which are sequentially arranged from bottom to top, the upper die further comprises a hole flanging punch (14), the hole flanging punch comprises a punch body (141) and a conical driving end (142) formed at the front end of the punch body, the rear end of the punch body is arranged between the fixed plate and the upper die base, and the front end of the punch body and the driving end penetrate through a punch avoiding hole (131) in the stripper plate; the lower die further comprises a stripping mechanism (23), the stripping mechanism comprises a stripping ejector rod (231) and a stripping spring (232), a chamfered surface (2311) is formed at the front end of the stripping ejector rod, the rear end of the stripping ejector rod and the stripping spring are mounted in a mounting groove hole (211) in the lower die base, and the front end of the stripping ejector rod and the chamfered surface penetrate through a hole flanging yielding hole (221) in the concave die plate; the hole flanging punch is right opposite to the hole flanging abdicating hole, and a product (100) which is punched with the hole flanging and pre-punched is positioned at the hole flanging abdicating hole on the concave template.
2. The punching die for punching synchronous chamfer of punched part hole flanging according to claim 1, characterized in that: and a discharging spring is arranged between the discharging plate and the fixing plate, and elastically separates the discharging plate and the fixing plate by a certain distance.
3. The punching die for punching synchronous chamfer of punched part hole flanging according to claim 1, characterized in that: the punch body and the driving end are integrally formed, the punch body comprises a punch flange (1411), a punch rear rod (1412) and a punch front rod (1413), the punch flange, the punch rear rod and the punch front rod are integrally formed from top to bottom, the radial width of the punch front rod is smaller than that of the punch rear rod, and the punch front rod and the punch rear rod are in transition through an arc surface; and a flange groove corresponding to the punch flange and a rod hole corresponding to the punch rear rod are formed on the fixing plate, the punch flange is arranged in the flange groove, and the punch rear rod is arranged in the rod hole and is fixed by locking the upper die base and the fixing plate.
4. The punching die for punching synchronous chamfer of punched part hole flanging according to claim 1, characterized in that: the stripping ejector rod comprises a stripping front rod (2312), a stripping rear rod (2313) and a stripping flange (2314) which are integrally formed from top to bottom, and the chamfered surface (2311) is positioned at the front end of the stripping front rod; the material stripping front rod and the material stripping rear rod are in transition through a cambered surface; hole flanging hole of stepping down is including dodging take off the first hole portion of material front mast and dodge take off the second hole portion of material back mast, it locates to take off the material flange the mounting groove is downthehole, take off the material spring mounting in the mounting groove is downthehole, and the butt in take off the bottom of material flange, make take off the material flange stop in the open position of second hole portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280816.2U CN209753811U (en) | 2019-03-06 | 2019-03-06 | Stamping die for punching part hole flanging synchronous chamfering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920280816.2U CN209753811U (en) | 2019-03-06 | 2019-03-06 | Stamping die for punching part hole flanging synchronous chamfering |
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| CN209753811U true CN209753811U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920280816.2U Active CN209753811U (en) | 2019-03-06 | 2019-03-06 | Stamping die for punching part hole flanging synchronous chamfering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719061A (en) * | 2020-12-03 | 2021-04-30 | 重庆伟汉汽车部件有限公司 | Forming process of small hole with chamfered surface in inward-flanged orifice on shell of electric control booster |
| CN117754680A (en) * | 2024-02-22 | 2024-03-26 | 安溪藤铁家居工业设计研究院有限公司 | Composite furniture plate stamping die |
-
2019
- 2019-03-06 CN CN201920280816.2U patent/CN209753811U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112719061A (en) * | 2020-12-03 | 2021-04-30 | 重庆伟汉汽车部件有限公司 | Forming process of small hole with chamfered surface in inward-flanged orifice on shell of electric control booster |
| CN112719061B (en) * | 2020-12-03 | 2022-09-06 | 重庆伟汉汽车部件有限公司 | Forming process of small hole with chamfered surface in inward-flanged orifice on shell of electric control booster |
| CN117754680A (en) * | 2024-02-22 | 2024-03-26 | 安溪藤铁家居工业设计研究院有限公司 | Composite furniture plate stamping die |
| CN117754680B (en) * | 2024-02-22 | 2024-05-10 | 安溪藤铁家居工业设计研究院有限公司 | Composite furniture plate stamping die |
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