CN214263429U - Hole flanging punch and hole flanging stamping die with positioning function - Google Patents
Hole flanging punch and hole flanging stamping die with positioning function Download PDFInfo
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- CN214263429U CN214263429U CN202022751828.4U CN202022751828U CN214263429U CN 214263429 U CN214263429 U CN 214263429U CN 202022751828 U CN202022751828 U CN 202022751828U CN 214263429 U CN214263429 U CN 214263429U
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Abstract
The utility model discloses a hole flanging drift with positioning action for carry out the hole flanging on punching a hole in advance, include: a punch rod body; the working part is arranged at one end of the punch rod body, the working part is fixedly connected with the punch rod body through a first connecting part, and the radius of the section of the first connecting part is reduced from the punch rod body to the working part; the positioning part is arranged at one end of the working part far away from the punch rod body, the positioning part is fixedly connected with the working part through a second connecting part, and the radius of the section of the second connecting part is reduced from the working part to the positioning part; the guide part is arranged at one end, far away from the working part, of the positioning part, the guide part is fixedly connected with the positioning part through a third connecting part, and the radius of the section of the third connecting part is reduced from the positioning part to the guide part. The utility model discloses make the tablet by evenly positioned around the hole flanging drift, the hole height that turns out equals, the wall thickness is even. Thereby preventing the bad condition of the product caused by different flanging heights, different wall thicknesses and non-concentric flanging holes.
Description
Technical Field
The utility model relates to a drift field, specific is a hole flanging drift and hole flanging stamping die with positioning action.
Background
In hardware products, hole flanging is common. According to different hole flanging effects, the hole flanging requirements are different. Before the hole flanging process, a hole is punched before the hole flanging process, which is called as pre-punching. The hole flanging height can be adjusted by adjusting the size of the pre-punched hole. As the hole flanging is common in hardware products, attention needs to be paid when the structure design of the hole flanging die is carried out, and according to a product drawing, the size requirements of the hole flanging are seen, and the corresponding structure design is carried out so as to ensure that the corresponding size meets the requirements of the product drawing. The existing hole flanging punch only comprises a guide part and a working part, wherein the guide part is more smaller than the pre-punched hole, and the working part is larger than the pre-punched hole, so that a larger difference exists between the guide part and the working part. When the height requirement and the wall thickness requirement of the hole flanging are met, the product requirement cannot be met by the conventional structural design. The hole flanging height of the hole flanging of the existing hole flanging punch design is different, and some holes are high and low, and the hole flanging wall thickness is different. In order to solve the poor hole flanging, the design of the traditional hole flanging punch is improved.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect among the prior art, the embodiment of the utility model provides a hole flanging drift and hole flanging stamping die with positioning action, its hole that is used for solving above-mentioned upset out can appear that the hole flanging is highly different, hole flanging wall thickness difference scheduling problem.
The embodiment of the application discloses: a hole flanging punch with positioning function for flanging a pre-punched hole, comprising: a punch rod body; the radius of the cross section of the first connecting part is reduced from the punch rod body to the working part; the positioning part is arranged at one end of the working part far away from the punch rod body, the radius of the positioning part is smaller than that of the working part, the positioning part is fixedly connected with the working part through a second connecting part, and the radius of the section of the second connecting part is reduced from the working part to the positioning part; the guide part is arranged at one end, far away from the working part, of the positioning part, the radius of the guide part is smaller than that of the positioning part, the guide part is fixedly connected with the positioning part through a third connecting part, and the radius of the cross section of the third connecting part is smaller from the positioning part to the guide part.
Further, the radius of the positioning part is 0.05mm smaller than that of the pre-punched hole.
Further, the radius of the guide part is 0.5mm smaller than that of the pre-punched hole.
Furthermore, the radius of the bottom surface of one end of the first connecting part is the same as that of the working part, and the radius of the bottom surface of the other end of the first connecting part is the same as that of one end, close to the working part, of the punch rod body.
Furthermore, the radius of the bottom surface of one end of the second connecting part is the same as that of the positioning part, and the radius of the bottom surface of the other end of the second connecting part is the same as that of the working part.
Further, the radius of the bottom surface of one end of the third connecting part is the same as that of the guide part, and the radius of the bottom surface of the other end of the third connecting part is the same as that of the positioning part.
The embodiment of the application also discloses a hole flanging stamping die, includes: the hole flanging punch with the positioning function, the upper die part, the lower die part and the standard part used for enabling the upper die part and the lower die part to correspond to each other are fixed on the upper die part.
Further, the upper die part comprises an upper die seat, an upper base plate located below the upper die seat, an upper clamping plate located below the upper base plate, a stripper plate located below the upper clamping plate and a window plate located below the stripper plate.
Further, the lower die part comprises a lower die plate, a lower die ejector block which is positioned in the lower die plate and corresponds to the hole flanging punch, a lower padding plate which is positioned below the lower die plate, a lower die base which is positioned below the lower padding plate and a lower padding foot which is fixedly connected with the lower die base.
Further, the standard part may include an outer guide pillar, an upper mold guide pillar, and an upper mold guide sleeve provided to the upper mold part; the standard piece can also comprise a lower die nitrogen spring, an outer guide sleeve, an upper die and other equal-height screws which are arranged on the lower die part.
The utility model has the advantages as follows:
due to the fact that the positioning portion which is close to the pre-punching radius is added, when the working portion connected with the positioning portion through the second connecting portion works, the material pieces are uniformly positioned around the hole flanging punch, the height of the hole flanging is equal, and the wall thickness is uniform. Thereby preventing the bad condition of the product caused by different flanging heights, different wall thicknesses and non-concentric flanging holes.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a hole flanging punch with a positioning function in an embodiment of the present invention;
fig. 2 is a schematic structural view of a hole flanging stamping die in an embodiment of the present invention in a state of opening a die;
fig. 3 is a schematic structural view of a hole flanging stamping die in a closed die state according to an embodiment of the present invention;
reference numerals of the above figures: 1. an upper die holder; 2. an upper base plate; 3. an upper splint; 4. a hole flanging punch; 401. a punch rod body; 402. a first connection portion; 403. a working part; 404. a second connecting portion; 405. a positioning part; 406. a third connecting portion; 407. a guide portion; 5. a material removing plate; 6. a window plate; 7. an upper die nitrogen spring; 8. an upper die equal-height screw; 9. an outer guide post; 10. an upper die guide sleeve; 11. an upper die guide post; 21. a lower template; 22. a lower base plate; 23. a lower die holder; 24. a lower foot pad; 25. a web; 26. a lower die ejector block; 27. an outer guide sleeve; 28. and (5) forming a nitrogen spring on the lower die.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the utility model provides a hole flanging drift with positioning function for carry out the hole flanging on punching in advance, include:
A working portion 403, working portion 403 may be disposed at an end of punch stem 401 distal from the projection. The radius of working portion 403 is smaller than the radius of punch stem 401, and working portion 403 is fixedly connected to punch stem 401 by first connecting portion 402. The radius of the cross section of the first connecting portion 402 decreases from the punch shank 401 to the working portion 403. Since the radius of the working portion 403 is the radius of the punched hole, the actual size of the working portion 403 can be adjusted according to the size of the punched hole.
The positioning portion 405 may be disposed at one end of the working portion 403 away from the punch rod body 401, a radius of the positioning portion 405 may be smaller than a radius of the working portion 403, the positioning portion 405 and the working portion 403 may be fixedly connected by the second connecting portion 404, and a radius of a cross section of the second connecting portion 404 may decrease from the working portion 403 to the positioning portion 405. The radius of the locating portion 405 may be slightly smaller than the radius of the pre-punched holes. The locating portion 405 may be concentric with the working portion 403 so that the pre-punched holes are more uniform in their movement from the locating portion 405 to the working portion 403.
The guide portion 407 may be provided at an end of the positioning portion 405 away from the working portion 403, the radius of the guide portion 407 is smaller than the radius of the positioning portion 405, the guide portion 407 and the positioning portion 405 are fixedly connected by a third connecting portion 406, and the radius of the cross section of the third connecting portion 406 decreases from the positioning portion 405 to the guide portion 407. The locating portion 405 may be concentric with the working portion 403 so that the pre-punched holes are more uniform in their movement from the guide portion 407 to the locating portion 405.
With the above-described structure, the pre-punched holes are punched in the web 25 before the burring process. The hole flanging height can be adjusted by adjusting the size of the pre-punched hole. The pre-punching can function to guide and position the flanging punch 4. During the hole flanging process, the punch rod body 401 moves to the position of the pre-punched hole, so that the guide portion 407 enters the pre-punched hole first to realize the guiding function. Next, the third connecting portion 406 and the positioning portion 405 enter the pre-punched hole in sequence, and at this time, the radius of the positioning portion 405 is slightly smaller than that of the pre-punched hole, and the positioning portion 405 is already located in the pre-punched hole, so that the pre-punched hole and the positioning portion 405 are concentric. The punch stem 401 then continues to move towards the material sheet 25, bringing the second connecting portion 404 and the working portion 403 towards the material sheet 25. Since the pre-punched holes and the positioning parts 405 are already concentric at this time, the working parts 403 are also concentric with the pre-punched holes, so that the holes punched on the web 25 by the working parts 403 are the same in height and uniform in wall thickness.
In the embodiment, a positioning part 405 with a radius similar to that of the pre-punched hole is added, so that the material sheet 25 is uniformly positioned around the hole flanging punch 4 when the working part 403 connected with the positioning part 405 through the second connecting part 404 works, and the height of the hole flanging is equal and the wall thickness is uniform. Thereby preventing the bad condition of the product caused by different flanging heights, different wall thicknesses and non-concentric flanging holes.
Specifically, the radius of the positioning portion 405 may be smaller than the radius of the pre-punched hole by 0.05mm, so that the positioning portion 405 can be uniformly located in the pre-punched hole while the positioning portion 405 is placed in the pre-punched hole. Therefore, the edges of the pre-punched holes can be uniformly distributed on the outer side of the positioning part 405, the follow-up working part 403 can be positioned in the center of the pre-punched holes during operation, and the flanging height on the flanging holes is more consistent.
Specifically, the radius of the guide portion 407 may be smaller than the radius of the pre-punched hole by 0.5mm, so as to ensure that the guide portion 407 is more smaller than the pre-punched hole, thereby achieving the effect of early guiding. When the hole flanging punch 4 moves to the position of the pre-punching hole, the guiding function can be realized as long as the guiding part 407 can be located in the pre-punching hole.
Specifically, the radius of the bottom surface of one end of the first connecting portion 402 is the same as the radius of the working portion 403, and the radius of the bottom surface of the other end of the first connecting portion 402 is the same as the radius of the end of the punch rod body 401 adjacent to the working portion 403. A smooth transition from working portion 403 to punch stem 401 may be achieved.
Specifically, the radius of the bottom surface at one end of the second connecting portion 404 is the same as the radius of the positioning portion 405, and the radius of the bottom surface at the other end of the second connecting portion 404 is the same as the radius of the working portion 403. A smooth transition from the positioning portion 405 to the working portion 403 is thereby achieved, preventing sudden width changes from the positioning portion 405 to the working portion 403 from damaging the material sheet 25 when the burring punch 4 is operated to pre-punch.
Specifically, the radius of the bottom surface of one end of the third connecting portion 406 is the same as the radius of the guide portion 407, and the radius of the bottom surface of the other end of the third connecting portion 406 is the same as the radius of the positioning portion 405. A smooth transition from the guide portion 407 to the positioning portion 405 can thereby be achieved, preventing the material sheet 25 from being damaged by a sudden width change from the guide portion 407 to the positioning portion 405 when the burring punch 4 is operated to the pre-punching.
As shown in fig. 2 to fig. 3, the present invention further provides an embodiment of a hole flanging stamping die, which includes, in addition to the hole flanging punch 4 with positioning function:
the upper die part comprises an upper die base 1, an upper backing plate 2 positioned below the upper die base 1, an upper clamping plate 3 positioned below the upper backing plate 2, a stripper plate 5 positioned below the upper clamping plate 3 and a window plate 6 positioned below the stripper plate 5. The upper clamping plate 3 and the upper backing plate 2 can be fixed on the upper die holder 1 through pins and screws, and play a role in fixing the hole flanging punch 4. The window plate 6 can be fixed on the stripper plate 5 through screws and pins, and plays a role in pressing and stripping. The stripper plate 5 can be connected with the upper die base 1 through a guide post, a guide sleeve, an upper die nitrogen spring 7, an upper die equal-height screw 8 and the like. At this time, the burring punch 4 is fixed in the upper plate 3.
The lower die part comprises a lower die plate 21, a lower die ejector block 26 which is positioned in the lower die plate 21 and corresponds to the hole flanging punch 4, a lower backing plate 22 positioned below the lower die plate 21, a lower die base 23 positioned below the lower backing plate 22 and a lower backing foot 24 fixedly connected with the lower die base 23. The lower template 21 and the lower backing plate 22 are fixed on the lower die base 23 through pins and screws. The lower die top block 26 plays a role in stripping and floats up and down in the lower die plate 21 under the action of the lower die nitrogen spring 28. The lower die base 23 is fixedly connected with the lower pad foot 24 by screw pins.
The standard component may include an outer guide post 9 located on the upper die base 1, an upper die guide post 11 penetrating the upper die portion, an upper die guide sleeve 10 disposed on the upper die base 1, a lower die nitrogen spring 28 disposed in the lower die base 23, an outer guide sleeve 27 disposed on the lower die base 23 corresponding to the outer guide post 9, and an upper die equal-height screw 8 penetrating the stripper plate 5 and the upper die of the upper die base 1. The outer guide posts 9 and the outer guide sleeves 27 enable the upper and lower mould parts to move in the direction in which they are guided. Preferably, the outer guide post 9 and the outer guide sleeve 27 are both vertically arranged.
An example of the burring die in burring the web 25 is shown below:
in the mold opening state, under the action of an upper mold nitrogen spring 7 and an upper mold equal-height screw 8 in the upper mold part, a stroke distance of the upper mold nitrogen spring 7 is reserved between the stripper plate 5 and the upper mold base 1, and at the moment, the hole flanging punch 4 is positioned in the window plate 6. In the lower die portion, the web 25 is placed on the lower die plate 21, and is positioned in the die by positioning pins. In the process that the punch drives the upper die part to move downwards, the outer guide pillar 9 is firstly contacted with the outer guide sleeve 27, and the guide positioning effect on the whole die is achieved. As the punch press drives the upper die part to continue moving downwards, the window plate 6 contacts with the material sheet 25, and the window plate 6 and the lower die plate 21 clamp the material sheet 25 tightly. As the punch press drives the upper die part to move downwards continuously, the stripper plate 5 and the window plate 6 are not moved, the guide part 407 of the hole flanging punch 4 enters the pre-punching hole, and the hole flanging punch 4 presses the lower die ejector block 26 into the lower die plate 21. The positioning 405 of the flanging punch 4 then enters the pre-punching, which is now concentric with the flanging punch 4. Subsequently, the working part 403 enters the pre-punching hole, and when the working part 403 works, the material sheet 25 is uniformly positioned around the hole flanging punch 4, and holes which are flanged out are equal in height and uniform in wall thickness. When the stroke of the upper die nitrogen spring 7 is finished, the die is dead, the one-time stamping process is finished, and the die closing state is achieved.
In the die closing state, the punch moves upwards next to the die, the upper die holder 1, the upper padding plate 2, the upper clamping plate 3 and the hole flanging punch 4 of the upper die part move upwards together with the punch, and the stripper plate 5 and the window plate 6 cannot move upwards together with the upper die part and the like due to the action of the upper die nitrogen spring 7. And (4) until the stroke of the upper die nitrogen spring 7 is finished, at the moment, the hole flanging punch 4 leaves the material sheet 25 and enters the window plate 6, and the material stripping action is finished.
Then, as the punch press continues to move upward, the stripper plate 5 and the window plate 6 move upward together with the upper die part. The upper die part is separated from the material sheet 25, the material sheet 25 moves upwards under the action of the lower die top block 26 and is lifted, and the material sheet 25 is separated from the lower die plate 21, so that the lower die stripping is completed. The upper die part continues to move upwards along with the punch until the upper die part reaches the dead point position of the punch, and the processes of closing and opening the die are completed at one time; the production is repeated in this way.
In the embodiment, the hole flanging punch 4 is placed in the hole flanging stamping die, and after the process of one-time die assembly and die opening is completed, the hole flanging with the same flanging height and uniform wall thickness can be obtained on the material sheet 25. This hole flanging stamping die makes mould part and lower mould part relative motion through the standard component to can realize the effect of automatic stripping.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (10)
1. A hole flanging punch with positioning function is used for flanging on a pre-punched hole and is characterized by comprising:
a punch rod body;
the punch comprises a punch body, a working part, a first connecting part and a second connecting part, wherein the working part is arranged at one end of the punch body, the radius of the working part is smaller than that of the punch body, the working part is fixedly connected with the punch body through the first connecting part, and the radius of the cross section of the first connecting part is reduced from the punch body to the working part;
the positioning part is arranged at one end, far away from the punch rod body, of the working part, the radius of the positioning part is smaller than that of the working part, the positioning part is fixedly connected with the working part through a second connecting part, and the radius of the section of the second connecting part is reduced from the working part to the positioning part;
the guide part is arranged at one end, far away from the working part, of the positioning part, the radius of the guide part is smaller than that of the positioning part, the guide part is fixedly connected with the positioning part through a third connecting part, and the radius of the cross section of the third connecting part is smaller from the positioning part to the guide part.
2. The flanging punch having a positioning function according to claim 1, wherein the radius of the positioning portion is smaller than the radius of the pilot hole by 0.05 mm.
3. The hole flanging punch as claimed in claim 1, wherein the radius of the guide portion is 0.5mm smaller than the radius of the pilot hole.
4. The hole flanging punch as claimed in claim 1, wherein a bottom surface radius of one end of the first connecting portion is the same as a radius of the working portion, and a bottom surface radius of the other end of the first connecting portion is the same as a radius of an end of the punch stem adjacent to the working portion.
5. The hole flanging punch head with positioning function as claimed in claim 1, wherein the radius of the bottom surface of one end of the second connecting part is the same as that of the positioning part, and the radius of the bottom surface of the other end of the second connecting part is the same as that of the working part.
6. The hole flanging punch with the positioning function as claimed in claim 1, wherein the radius of the bottom surface of one end of the third connecting part is the same as that of the guide part, and the radius of the bottom surface of the other end of the third connecting part is the same as that of the positioning part.
7. A hole flanging stamping die is characterized by comprising: a pierce punch with locating action according to any one of claims 1 to 6, said pierce punch being fixed to the upper die portion, and to the upper and lower die portions, and to a standard for making the upper and lower die portions correspond.
8. The hole flanging stamping die of claim 7, wherein the upper die portion comprises an upper die base, an upper backing plate located below the upper die base, an upper clamping plate located below the upper backing plate, a stripper plate located below the upper clamping plate, and a window plate located below the stripper plate.
9. The hole flanging stamping die of claim 7, wherein the lower die portion comprises a lower die plate, a lower die ejector block located inside the lower die plate and arranged corresponding to the hole flanging punch, a lower cushion plate located below the lower die plate, a lower die base located below the lower cushion plate, and a lower cushion foot fixedly connected with the lower die base.
10. The hole flanging stamping die of claim 7, wherein the standard component comprises an outer guide post, an upper guide post and an upper guide sleeve arranged on the upper die portion; the standard piece can also comprise a lower die nitrogen spring, an outer guide sleeve, an upper die and other equal-height screws which are arranged on the lower die part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751828.4U CN214263429U (en) | 2020-11-25 | 2020-11-25 | Hole flanging punch and hole flanging stamping die with positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022751828.4U CN214263429U (en) | 2020-11-25 | 2020-11-25 | Hole flanging punch and hole flanging stamping die with positioning function |
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| Publication Number | Publication Date |
|---|---|
| CN214263429U true CN214263429U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022751828.4U Active CN214263429U (en) | 2020-11-25 | 2020-11-25 | Hole flanging punch and hole flanging stamping die with positioning function |
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| CN (1) | CN214263429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475307A (en) * | 2023-04-23 | 2023-07-25 | 宝玛克(合肥)科技有限公司 | Online hole flanging die for rolling part and application method of online hole flanging die |
-
2020
- 2020-11-25 CN CN202022751828.4U patent/CN214263429U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116475307A (en) * | 2023-04-23 | 2023-07-25 | 宝玛克(合肥)科技有限公司 | Online hole flanging die for rolling part and application method of online hole flanging die |
| CN116475307B (en) * | 2023-04-23 | 2024-03-19 | 宝玛克(合肥)科技有限公司 | Online hole flanging die for rolling part and application method of online hole flanging die |
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Effective date of registration: 20230118 Address after: 330032 Kaima Industrial Park, No. 88, Dingxiang Road, Nanchang Economic and Technological Development Zone, Jiangxi Province Patentee after: JIANGXI PRESSLER ADVANCED FORMING TECHNOLOGY Co.,Ltd. Address before: 214145 No.7, Jinma Road, Hongshan street, Wuxi City, Jiangsu Province Patentee before: Wuxi Przeisler Mold Technology Co.,Ltd. |