CN217142005U - Forming tool for sheet metal part on inner wall of large elbow - Google Patents
Forming tool for sheet metal part on inner wall of large elbow Download PDFInfo
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- CN217142005U CN217142005U CN202221118675.2U CN202221118675U CN217142005U CN 217142005 U CN217142005 U CN 217142005U CN 202221118675 U CN202221118675 U CN 202221118675U CN 217142005 U CN217142005 U CN 217142005U
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- sheet metal
- mounting plate
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Abstract
The utility model discloses a shaping frock of big return bend inner wall sheet metal component, include: the top surface of the female die is provided with an annular die cavity; the edge pressing ring is separately arranged on the top surface of the female die and is positioned on the periphery of the die cavity; the mounting plate is arranged above the female die; the male die is matched with the die cavity and fixedly arranged on the bottom surface of the mounting plate; and the elastic component is arranged between the top surface of the edge pressing ring and the bottom surface of the mounting plate along the circumferential direction. The utility model discloses a shaping frock simple structure, the shaping is effectual, and the shaping is efficient, is difficult for causing shaping risks such as product fracture, and the product percent of pass is high.
Description
Technical Field
The utility model relates to a sheet metal component shaping technical field especially relates to a shaping frock of big return bend inner wall sheet metal component.
Background
Stamping is one of important means for forming aviation sheet metal parts, and for parts with small deformation, the stamping device is high in processing speed and obvious in economic benefit. The large bent pipe part with a complex structure, such as the inner wall of the large bent pipe, is formed by punching a circular sheet metal blank to form a circular groove on the circular sheet metal blank. Because of the large deflection of part structure itself, the sheet material is walked the material many in the forming process, and walks the material direction and is difficult to the accuracy grasp, and single punching press needs shaping many times, and the work load during the shaping is big, and shaping risks such as fracture easily appear, and the product percent of pass is low.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects or not enough among the prior art, it is desirable to provide a simple structure, and shaping is effectual, and shaping efficiency is high, is difficult for causing shaping risks such as product fracture, and the high big bend inner wall sheet metal component's of product percent of pass shaping frock.
The utility model provides a pair of big return bend inner wall sheet metal component's shaping frock, include:
the top surface of the female die is provided with an annular die cavity;
the edge pressing ring is separately arranged on the top surface of the female die, is positioned on the periphery of the die cavity and is used for pressing the edge of the round sheet metal blank;
the mounting plate is arranged above the female die;
the male die is matched with the die cavity and fixedly arranged on the bottom surface of the mounting plate;
the elastic assembly is arranged between the top surface of the edge pressing ring and the bottom surface of the mounting plate along the circumferential direction and is used for compressing the edge pressing ring through elastic force.
Furthermore, the elastic assembly comprises a plurality of elastic rubber rods uniformly distributed along the circumferential direction, a plurality of first cylindrical grooves are uniformly distributed along the circumferential direction on the top surface of the edge pressing ring, second cylindrical grooves corresponding to the first cylindrical grooves one to one are formed in the bottom surface of the mounting plate, the bottom ends of the elastic rubber rods are embedded into the first cylindrical grooves one to one, the top ends of the elastic rubber rods are embedded into the corresponding second cylindrical grooves, and the inner diameter of each second cylindrical groove is larger than the outer diameter of each elastic rubber rod so that the elastic rubber rods can be compressed and expanded.
Furthermore, the surface of the sheet metal blank is paved with oiled paper.
Furthermore, a ring of ring grooves are formed in the periphery of the die cavity on the top surface of the female die; the bottom surface of the edge pressing ring is provided with annular convex edges corresponding to the annular grooves.
Furthermore, the male die is detachably and fixedly connected with the mounting plate through a bolt.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a shaping frock is provided with blank pressing ring and elastic component, when carrying out the sheet metal component shaping, places the sheet metal blank at the top surface of die cavity, presses the blank pressing ring on the neighboring of sheet metal blank top surface. In the process that the forming hydraulic press drives the male die to press downwards through the mounting plate, the elastic assembly is stressed to contract, so that the edge of the sheet metal blank is always in a compression state, and the edge part of the sheet metal blank can still walk. And (3) the male die moves downwards to enable the part to start stretch forming, the edge material of the sheet metal blank is fed towards the middle, finally the male die and the female die are matched, and the molded surface characteristic of the part is formed in place.
The forming tool is simple in structure, good in forming effect, capable of forming the sheet metal part at one time and high in forming efficiency. Under the effect of elastic component, have stable blank holder power when making the sheet metal component shaping, stretch forming walks the material smoothly, is difficult for causing shaping risks such as product fracture, and the product percent of pass is high.
It should be understood that what is described in this summary section is not intended to limit key or critical features of embodiments of the invention, nor is it intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a forming tool for a sheet metal part on the inner wall of a large elbow;
FIG. 2 is a schematic sectional structure view of a forming tool for a sheet metal part on the inner wall of a large elbow;
FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;
FIG. 4 is a schematic structural view of a female mold;
FIG. 5 is a schematic structural view of a male mold;
fig. 6 is a schematic structural diagram of a forming tool for placing a blank.
The reference numbers in the figures: 11. sheet metal blanks; 12. a female die; 13. pressing an edge ring; 14. mounting a plate; 15. a male die; 16. an elastic component;
21. a mold cavity; 22. a ring groove;
31. a first cylindrical groove; 32. an annular convex edge;
41. a second cylindrical groove;
51. a bolt;
61. an elastic rubber bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention provides a forming tool for a sheet metal part on an inner wall of a large elbow, including:
a female die 12, the top surface of which is provided with an annular die cavity 21;
the edge pressing ring 13 is separately arranged on the top surface of the female die 12, is positioned on the periphery of the die cavity 21 and is used for pressing the edge of the round sheet metal blank 11;
the mounting plate 14 is arranged above the female die 12;
the male die 15 is matched with the die cavity 21 and fixedly arranged on the bottom surface of the mounting plate 14;
and an elastic member 16 circumferentially disposed between the top surface of the edge pressing ring 13 and the bottom surface of the mounting plate 14 for elastically pressing the edge pressing ring 13.
In the embodiment, when the inner wall of the large bent pipe is subjected to punch forming, firstly, the female die 12 is fixed on a workbench of a forming hydraulic press, then, the male die 15 is clamped and arranged at the top of the female die 12, then, the driving end of the forming hydraulic press moves downwards, the male die 15 is clamped and fixed through a hydraulic clamp and then ascends and is lifted. Place sheet metal blank 11 on the top surface of die cavity 21, press blank ring 13 on the peripheral edge of sheet metal blank 11 top surface, place elastic component 16 to the top surface of blank ring 13 again. Then the forming hydraulic press drives the male die 15 to press down through the mounting plate 14, the elastic component 16 contracts under the stress, the edge of the sheet metal blank 11 is always in a pressing state, and the edge part of the sheet metal blank 11 can still be fed. The male die 15 moves downwards to enable the part to start stretch forming, the edge material of the sheet metal blank 11 is fed towards the middle, finally the male die 15 and the female die 12 are matched, and the part profile feature is formed in place.
The forming tool is simple in structure, good in forming effect, capable of forming the sheet metal part at one time and high in forming efficiency. Under the effect of elastic component 16, have stable blank holder power when making sheet metal component shaping, stretch forming walks the material smoothly, is difficult for causing shaping risks such as product fracture, and the product percent of pass is high.
In a preferred embodiment, as shown in fig. 6, the elastic assembly 16 includes a plurality of elastic glue rods 61 uniformly distributed along the circumferential direction, a plurality of first cylindrical grooves 31 are uniformly distributed along the circumferential direction on the top surface of the blank holder 13, second cylindrical grooves 41 corresponding to the first cylindrical grooves 31 one by one are disposed on the bottom surface of the mounting plate 14, the bottom ends of the elastic glue rods 61 are embedded into the first cylindrical grooves 31 one by one, the top ends of the elastic glue rods are embedded into the corresponding second cylindrical grooves 41, and the inner diameter of the second cylindrical grooves 41 is larger than the outer diameter of the elastic glue rods 61, so that the elastic glue rods 61 are of a compression-expansion type.
In the embodiment, during the process of pressing down the punch 15, the elastic glue stick 61 is supported between the mounting plate 14 and the blank holder 13, and as the punch 15 moves downwards, the height of the elastic glue stick 61 is reduced, and the outer diameter expansion is increased. After the male die 15 and the female die 12 are clamped, the expanding elastic rubber rod 61 is accommodated in the second cylindrical groove 41. The elastic rubber rod 61 ensures the forming quality of the sheet metal part.
In a preferred embodiment, the surface of the sheet metal blank 11 is coated with a paper oil. The friction force between the sheet metal part and the tool is reduced, and when the molded surface of the part is molded, the phenomenon that the molded surface is cracked or the wall thickness is uneven due to unsmooth material feeding is avoided, so that the molding quality of the sheet metal part is improved, and meanwhile, the molded surface is protected.
In a preferred embodiment, as shown in fig. 3, the top surface of the female die 12 is provided with a ring of annular grooves 22 on the periphery of the die cavity 21; the bottom surface of the edge pressing ring 13 is provided with an annular convex ridge 32 corresponding to the ring groove 22. Through the cooperation of annular protruding stupefied 32 and annular 22, improved blank holder 13 to the packing force at sheet metal blank 11 edge, can effectively avoid sheet metal blank 11 to walk the material too fast and influence the shaping effect.
In a preferred embodiment, as shown in fig. 6, the male mold 15 is detachably and fixedly connected with the mounting plate 14 through bolts 51, so that the male mold 15 can be replaced conveniently.
In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (5)
1. The utility model provides a shaping frock of big return bend inner wall sheet metal component which characterized in that includes:
the top surface of the female die is provided with an annular die cavity;
the edge pressing ring is separately arranged on the top surface of the female die, is positioned on the periphery of the die cavity and is used for pressing the edge of the round sheet metal blank;
the mounting plate is arranged above the female die;
the male die is matched with the die cavity and fixedly arranged on the bottom surface of the mounting plate;
the elastic assembly is arranged between the top surface of the edge pressing ring and the bottom surface of the mounting plate along the circumferential direction and is used for compressing the edge pressing ring through elastic force.
2. The forming tool for the sheet metal part on the inner wall of the large elbow according to claim 1, wherein the elastic component comprises a plurality of elastic rubber rods uniformly distributed along the circumferential direction, a plurality of first cylindrical grooves are uniformly distributed along the circumferential direction on the top surface of the edge pressing ring, second cylindrical grooves corresponding to the first cylindrical grooves one to one are formed in the bottom surface of the mounting plate, the bottom ends of the elastic rubber rods are embedded into the first cylindrical grooves one to one, the top ends of the elastic rubber rods are embedded into the corresponding second cylindrical grooves, and the inner diameter of each second cylindrical groove is larger than the outer diameter of each elastic rubber rod so that the elastic rubber rods can be compressed and expanded.
3. The forming tool for the sheet metal part on the inner wall of the large elbow according to claim 2, wherein oiled paper is laid on the surface of the sheet metal blank.
4. The forming tool for the sheet metal part on the inner wall of the large elbow according to claim 3, wherein a ring of annular grooves are formed in the periphery of the die cavity on the top surface of the female die; the bottom surface of the edge pressing ring is provided with annular convex edges corresponding to the annular grooves.
5. The forming tool for the sheet metal part on the inner wall of the large elbow according to claim 4, wherein the male die is detachably and fixedly connected with the mounting plate through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221118675.2U CN217142005U (en) | 2022-05-11 | 2022-05-11 | Forming tool for sheet metal part on inner wall of large elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221118675.2U CN217142005U (en) | 2022-05-11 | 2022-05-11 | Forming tool for sheet metal part on inner wall of large elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217142005U true CN217142005U (en) | 2022-08-09 |
Family
ID=82666108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221118675.2U Active CN217142005U (en) | 2022-05-11 | 2022-05-11 | Forming tool for sheet metal part on inner wall of large elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217142005U (en) |
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2022
- 2022-05-11 CN CN202221118675.2U patent/CN217142005U/en active Active
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