CN216501870U - Die for stretch forming of special-shaped parts - Google Patents
Die for stretch forming of special-shaped parts Download PDFInfo
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- CN216501870U CN216501870U CN202120831908.2U CN202120831908U CN216501870U CN 216501870 U CN216501870 U CN 216501870U CN 202120831908 U CN202120831908 U CN 202120831908U CN 216501870 U CN216501870 U CN 216501870U
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Abstract
The utility model provides a die for stretching and forming special-shaped parts, which comprises: the upper die assembly comprises an upper die body, a first forming upper die and a second forming upper die, wherein the first forming upper die and the second forming upper die are arranged on the upper die body at intervals; the lower die assembly comprises a lower die body, a first forming lower die, a first positioning piece, a second forming lower die and a second positioning piece, wherein a first movable hole penetrating through the first forming lower die is formed in the first forming lower die, the first positioning piece is connected to the lower die body, and the first positioning piece is telescopically mounted in the first movable hole; and a second movable hole penetrating through the second forming lower die is formed in the second forming lower die, and the second positioning piece is connected to the lower die body and is telescopically installed in the second movable hole. According to the utility model, by optimizing the structure of the die, the technical problem of low processing efficiency of the traditional die is solved.
Description
Technical Field
The utility model relates to the technical field of dies, in particular to a die for stretching and forming special-shaped parts.
Background
The die is various dies and tools for obtaining required parts by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production; the processing of the appearance of the parts is realized mainly by changing the physical state of the formed material, and the parts are called as 'industrial mothers'. The mould has a specific contour or an inner cavity shape, and the blank can be divided into two parts, namely a contour line and a fixed mould (or a male mould and a female mould) by applying the contour shape with the cutting edge. The parts are pressed and cast when closed and removed when separated.
In the related technology, because the die is a precision tool, especially the special-shaped parts have complex shapes, different edge forming directions, higher forming height and smaller corners, and have higher requirements on the strength, rigidity, surface hardness, surface roughness and processing precision of the blank structure. The traditional forming die for the special-shaped parts is usually processed by matching multiple dies and multiple processes, so that the special-shaped parts are stretched and formed. However, since each machining of the part needs to be performed: the processes of putting a die into the die, calibrating parts, die casting, taking out the parts and the like are carried out, so that the processing efficiency of the special-shaped parts is low.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides a die for stretching and forming a special-shaped part, which aims to solve the technical problem that the traditional die in the related art is low in machining efficiency.
The utility model provides a die for stretching and forming special-shaped parts, which comprises:
the upper die assembly comprises an upper die body, a first forming upper die and a second forming upper die, wherein the first forming upper die and the second forming upper die are arranged on the upper die body at intervals;
the lower die assembly comprises a lower die body, a first forming lower die, a first positioning piece, a second forming lower die and a second positioning piece, wherein the first forming lower die and the second forming lower die are arranged on the lower die body at intervals; a second movable hole penetrating through the second lower forming die is formed in the second lower forming die, the second movable hole extends from one side, close to the upper die set, of the second lower forming die to the direction close to the lower die body, the second positioning piece is connected to the lower die body, and the second positioning piece is mounted in the second movable hole in a telescopic mode;
the first upper forming die is matched with the first lower forming die, and the second upper forming die is matched with the second lower forming die.
Optionally, the first positioning element includes a first telescopic body, a first positioning body, and a plurality of first positioning posts arranged at intervals, the first telescopic body is disposed on the lower die body, the first positioning body is disposed on a side of the first telescopic body away from the lower die body, and the plurality of first positioning posts are protrudingly disposed on a side of the first positioning body away from the first telescopic body;
the second positioning part comprises a second telescopic body, a second positioning body and a plurality of second positioning columns arranged at intervals, the second telescopic body is arranged on the lower die body, the second positioning body is arranged on one side, away from the lower die body, of the second telescopic body, and the second positioning columns are convexly arranged on one side, away from the second telescopic body, of the second positioning body;
the relative positions of the first positioning columns are the same as the relative positions of the second positioning columns.
Optionally, the first telescopic body and the second telescopic body are both nitrogen spring telescopic bodies; and/or the presence of a gas in the gas,
the cross-sectional area of the first positioning body is polygonal, square or circular, and the cross-sectional area of the second positioning body is irregular curved surface.
Optionally, the lower die body comprises a lower die plate, a plurality of lower die equal-height cushion blocks and a lower die mounting plate, and the lower die equal-height cushion blocks are arranged between the lower die plate and the lower die mounting plate at intervals;
the lower die plate is provided with a first through hole corresponding to the first movable hole and a second through hole corresponding to the second movable hole, and the first lower forming die and the second lower forming die are correspondingly arranged on one side of the lower die plate, which is far away from the lower die mounting plate;
one end of the first telescopic body is connected to the lower die mounting plate, and the other end of the first telescopic body penetrates through the first through hole and the first movable hole, so that the first positioning body is driven to reciprocate in the first movable hole and a plurality of first positioning columns are driven to be exposed out of the first forming lower die or accommodated in the first movable hole through the telescopic motion of the first telescopic body;
one end of the second telescopic body is connected to the lower die mounting plate, and the other end of the second telescopic body penetrates through the second through hole and the second movable hole, so that the second positioning body is driven to reciprocate in the second movable hole through the telescopic motion of the second telescopic body, and the second positioning columns are driven to be exposed out of the second forming lower die or to be accommodated in the second movable hole.
Optionally, the lower die body further includes a lower die limiting member, the lower die limiting member is disposed on the lower die mounting plate near the second telescopic body, and the lower die limiting member is located between the lower die mounting plate and the lower die plate, and the lower die limiting member is used for limiting the position of the second positioning body;
and a plurality of lower die equal-height cushion blocks and the lower die limiting parts are arranged at intervals.
Optionally, one side of the first forming lower die, which is far away from the lower die body, is an irregular convex curved surface, and the shape of one side of the second positioning element, which is far away from the lower die body, is the same as the shape of one side of the first forming lower die, which is far away from the lower die body;
one side of the second forming lower die, which is far away from the lower die body, is an irregular concave curved surface, and the irregular concave curved surface is provided with two smooth curved surfaces which are oppositely arranged;
the second lower forming die and the first lower forming die are used for processing and forming the same part with different degrees of freedom.
Optionally, the upper die body comprises an upper die plate, a second upper die equal-height cushion block and a plurality of first upper die equal-height cushion blocks;
the first upper die equal-height cushion blocks are arranged on one side, close to the lower die assembly, of the upper die plate at intervals, and the first forming upper die is arranged on one side, far away from the upper die plate, of the first upper die equal-height cushion blocks;
the second upper die equal-height cushion block is arranged on one side, close to the lower die assembly, of the upper die plate at intervals of the first upper die equal-height cushion block, and the second forming upper die is arranged on one side, far away from the upper die plate, of the second upper die equal-height cushion block.
Optionally, the mold further comprises a connecting assembly, the connecting assembly comprises a sleeve piece arranged on the upper mold body and an embedded piece arranged on the lower mold body, the sleeve piece is arranged at the edge of the upper mold body, and the embedded piece is matched with the sleeve piece;
when the upper die assembly is close to the lower die assembly, the sleeve is sleeved and fastened on the outer side of the embedded piece.
Optionally, the connecting assembly further comprises a protecting piece, and the protecting piece is arranged on one side of the sleeve piece, which is far away from the upper die body; the protection member is provided with a protection through hole through which the fitting member is inserted.
Compared with the prior art, the utility model has the following beneficial effects:
in the technology of the utility model, the specific structure of the die for stretch forming of the special-shaped part is optimized, the processing mode of operation of double operators in the traditional double equipment and double processing procedures is broken, the stretch forming of the special-shaped part can be completed by one operator through one die, equipment and equipment, and the special-shaped processing efficiency of the high-strength plate material is effectively improved. Specifically, a first upper molding die and a second upper molding die are integrated on the upper die body, and a second lower molding die are integrated on the lower die body; the first upper forming die corresponds to the first lower forming die so as to complete a first process of processing the special-shaped part; this second mould goes up mould corresponds to second mould lower mould to accomplish the second process of special-shaped parts processing, so, accomplish the processing to the different degrees of freedom upper curve of special-shaped parts through the at least twice process of same mould equipment, thereby accomplish the stretch forming to high strength material. Furthermore, in order to reduce the occurrence of pressure unbalance loading between the two processes, a first positioning piece and a second positioning piece which can move in a telescopic manner are arranged to eject the parts after processing is finished, so that the damage to the processing precision of the parts when the parts are taken and placed manually is avoided, and the yield of the special-shaped parts is effectively improved.
Drawings
FIG. 1 is a front view of a mold in one embodiment of the utility model;
FIG. 2 is a schematic perspective view of an upper mold assembly according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a lower mold assembly according to an embodiment of the utility model.
The reference numbers illustrate:
| 100 | upper die |
220 | First forming lower die |
| 200 | Lower die |
230 | Second forming lower die |
| 300 | |
240 | |
| 110 | Upper mould bookBody | 241 | |
| 111 | Upper template | 242 | A |
| 112 | Second upper die equal- |
243 | |
| 113 | First upper die equal- |
250 | |
| 120 | First forming upper die | 251 | |
| 130 | Second forming upper die | 252 | |
| 210 | Lower die |
253 | |
| 211 | |
310 | |
| 212 | Lower die equal- |
320 | Embedded |
| 213 | Lower |
330 | Protecting |
| 214 | Lower die locating part |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and beneficial effects of the present invention more clearly apparent, the technical solutions of the present invention are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Referring to fig. 1 to 3, the present invention provides a die for stretch forming of a special-shaped part, including:
the upper die assembly 100 comprises an upper die body 110, a first forming upper die 120 and a second forming upper die 130, wherein the first forming upper die 120 and the second forming upper die 130 are arranged on the upper die body 110 at intervals;
the lower die assembly 200 comprises a lower die body 210, a first forming lower die 220, a first positioning piece 240, a second forming lower die 230 and a second positioning piece 250, wherein the first forming lower die 220 and the second forming lower die 230 are arranged on the lower die body 210 at intervals, a first movable hole penetrating through the first forming lower die 220 is formed in the first forming lower die 220, the first movable hole extends from one side, close to the upper die set, of the first forming lower die 220 to the direction close to the lower die body 210, the first positioning piece 240 is connected to the lower die body 210, and the first positioning piece 240 is telescopically mounted in the first movable hole; a second movable hole penetrating through the second lower molding die 230 is formed in the second lower molding die 230, the second movable hole extends from the side of the second lower molding die 230 close to the upper die assembly toward the direction close to the lower die body 210, the second positioning element 250 is connected to the lower die body 210, and the second positioning element 250 is telescopically mounted in the second movable hole;
the first upper molding die 120 is adapted to the first lower molding die 220, and the second upper molding die 130 is adapted to the second lower molding die 230.
In this embodiment, in order to simultaneously perform multi-degree-of-freedom stretch forming operations on the same high-hardness material on the same mold apparatus, the first upper forming mold 120 and the second upper forming mold 130 are disposed on the upper mold body 110 at an interval, and the first lower forming mold 220 and the second lower forming mold 230 are disposed on the lower mold body 210 at an interval, so that when the upper mold assembly 100 moves toward the lower mold assembly 200, the first upper forming mold 120 is driven to move toward the first lower forming mold 220, and the second upper forming mold 130 is driven to move toward the second lower forming mold 230; further, when the upper die assembly 100 abuts against the lower die assembly 200, the first upper molding die 120 abuts against the high-hardness material die-cast on the first lower molding die 220, and the second upper molding die 130 abuts against the high-hardness material die-cast on the second lower molding die 230. It should be understood that the first upper molding die 120 is adapted to the first lower molding die 220, and the first upper molding die 120 is arranged corresponding to the first lower molding die 220; the second upper forming die 130 is matched with the second lower forming die 230, and the second upper forming die 130 is arranged corresponding to the second lower forming die 230; in this way, the drawing forming of the high-hardness material in one degree of freedom is completed by the abutting die casting of the first upper forming die 120 and the first lower forming die 220, the drawing forming of the high-hardness material in the other degree of freedom is completed by the abutting die casting of the second upper forming die 130 and the second lower forming die 230, and the processing of the special-shaped part is completed; therefore, the processing of the upper curved surfaces of the special-shaped parts with different degrees of freedom is completed through at least two procedures of the same die equipment, so that the stretching forming of the high-strength material is completed.
Specifically, in order to reduce the pressure unbalance load between the two processes and improve the precision of the machined part, a first positioning member 240 and a second positioning member 250 are provided. The first positioning element 240 and/or the second positioning element 250 are/is arranged on the lower die body 210 to position the high-hardness material during die casting; meanwhile, the first positioning element 240 is telescopically installed in the first movable hole, the second positioning element 250 is telescopically installed in the second movable hole, so that after the die-casting of the part to be processed is completed, the die-cast part is ejected out of the first lower molding die 220 and/or the second lower molding die 230 through the first positioning element 240 and/or the second positioning element 250. The damage to the machining precision due to manual errors when parts of the first procedure are manually taken and placed/completed is effectively avoided, and the yield of special-shaped part forming is effectively improved.
Therefore, the technology of the utility model breaks through the processing mode of the operation of double operators in the traditional double equipment and double processing procedures by optimizing the specific structure of the die for stretching and forming the special-shaped part, can complete the stretching and forming of the special-shaped part by one operator through one die equipment, and effectively improves the special-shaped processing efficiency of the high-strength plate material.
Optionally, the first positioning element 240 includes a first telescopic body 241, a first positioning body 242 and a plurality of first positioning pillars 243 arranged at intervals, the first telescopic body 241 is disposed on the lower die body 210, the first positioning body 242 is disposed on a side of the first telescopic body 241 away from the lower die body 210, and the plurality of first positioning pillars 243 are protruded on a side of the first positioning body 242 away from the first telescopic body 241;
the second positioning member 250 includes a second stretchable body 251, a second positioning body 252, and a plurality of second positioning posts 253 arranged at intervals, the second stretchable body 251 is disposed on the lower die body 210, the second positioning body 252 is disposed on a side of the second stretchable body 251 away from the lower die body 210, and the plurality of second positioning posts 253 are protrudingly disposed on a side of the second positioning body 252 away from the second stretchable body 251;
the relative positions between the first positioning posts 243 are the same as the relative positions between the second positioning posts 253.
In the present embodiment, the first telescopic body 241 is provided to reciprocate the first positioning body 242. It should be understood that the first telescopic body 241 is connected to the lower die body 210. For example, but not limited to, the first telescopic body 241 is fixedly connected to the lower die body 210 to improve the stability of the first retainer 242 during the movement process. To achieve position limitation of the high hardness material to be processed, a plurality of first positioning posts 243 are provided on a side of the first retainer 242 away from the first telescopic body 241. For example, but not limited to, the first positioning pillars 243 are provided in 3, and 3 first positioning pillars 243 are arranged at intervals of a triangle. It should be understood that a plurality of positioning holes are formed in the high-hardness material to match with the plurality of first positioning posts 243, so that the position of the high-hardness material in the die-casting process is defined by the plurality of positioning holes and the plurality of first positioning posts 243.
To achieve the reciprocating motion of the second positioning body 252, a second telescopic body 251 is provided. It should be understood that the second extensible member 251 is connected to the lower die body 210. For example, but not limited to, the second telescopic body 251 is fixedly connected to the lower die body 210 to improve the stability of the second positioning body 252 during the movement process. In order to define the position of the high hardness material to be processed, a plurality of second positioning posts 253 are disposed on a side of the second positioning body 252 away from the second telescopic body 251. For example, but not limited to, the second positioning pillars 253 are provided with 3, and 3 second positioning pillars 253 are arranged at intervals in a triangle. It should be understood that a plurality of positioning holes are formed in the high hardness material and are matched with the plurality of second positioning pillars 253, so that the position of the high hardness material in the die casting process is defined by the plurality of positioning holes and the plurality of second positioning pillars 253. The shape enclosed by the second positioning pillars 253 is the same as the shape enclosed by the first positioning pillars 243.
Optionally, the first telescopic body 241 and the second telescopic body 251 are both nitrogen spring telescopic bodies; and/or the presence of a gas in the gas,
the first positioning body 242 has one of a polygonal shape, a square shape and a circular shape in cross-sectional area, and the second positioning body 252 has an irregular curved surface in cross-sectional area. It should be understood that the shape of the second positioning body 252 is the same as the shape of the first lower molding die 220 for molding the high hardness material.
Optionally, the lower die body 210 includes a lower die plate 211, a plurality of lower die equal-height cushion blocks 212, and a lower die mounting plate 213, and the plurality of lower die equal-height cushion blocks 212 are arranged between the lower die plate 211 and the lower die mounting plate 213 at intervals;
a first through hole corresponding to the first movable hole and a second through hole corresponding to the second movable hole are formed in the lower template 211, and the first lower molding die 220 and the second lower molding die 230 are correspondingly arranged on one side, away from the lower die mounting plate 213, of the lower template 211;
one end of the first telescopic body 241 is connected to the lower mold mounting plate 213, and the other end of the first telescopic body 241 penetrates through the first through hole and penetrates into the first movable hole, so as to drive the first positioning body 242 to reciprocate in the first movable hole and drive the first positioning posts 243 to expose the first molding lower mold 220 or be accommodated in the first movable hole through the telescopic motion of the first telescopic body 241;
one end of the second telescopic body 251 is connected to the lower mold mounting plate 213, and the other end of the second telescopic body 251 penetrates through the second through hole and the second movable hole, so that the second positioning body 252 is driven to reciprocate in the second movable hole by the telescopic motion of the second telescopic body 251, and the second positioning posts 253 are driven to be exposed out of the second lower mold 230 or to be accommodated in the second movable hole.
In this embodiment, in order to rigidly support the first lower molding die 220 and the second lower molding die 230, a lower mold plate 211 is provided. In order to fix the lower mold assembly 200, a lower mold mounting plate 213 is provided. In order to realize the connection and fastening of the lower template 211 and the lower die mounting plate 213, a plurality of lower die equal-height cushion blocks 212 are arranged. Meanwhile, the rigidity of the lower template 211 and the lower die mounting plate 213 is improved by the lower die equal-height cushion blocks 212 arranged at intervals. It should be understood that the first moving hole provided on the first lower molding die 220 is aligned with the first through hole on the lower mold plate 211 to form a first moving channel for the movement of the first positioning member 240; the second moving hole of the second lower molding die 230 is aligned with the second through hole of the lower mold plate 211 to form a second moving channel for the movement of the second positioning element 250.
Optionally, the lower die body 210 further includes a lower die limiting member 214, the lower die limiting member 214 is disposed on the lower die mounting plate 213 near the second telescopic body 251, the lower die limiting member 214 is located between the lower die mounting plate 213 and the lower die plate 211, and the lower die limiting member 214 is configured to limit the position of the second positioning body 252;
the lower mold equal-height cushion blocks 212 and the lower mold stoppers 214 are disposed at intervals.
In this embodiment, the lower die limiting member 214 is disposed near the second telescopic body 251 to limit the maximum displacement of the second positioning body 252 moving toward the lower die mounting plate 213. For example, but not limited to, a plurality of lower die stoppers 214 are provided, and a plurality of lower die stoppers 214 are disposed around the second expansion body 251 at intervals; at this time, the lower die stopper 214 also has a guiding function to guide the moving direction of the second extensible member 251.
Optionally, one side of the first molding lower die 220 away from the lower die body 210 is an irregular convex curved surface, and a shape of one side of the second positioning element 250 away from the lower die body 210 is the same as a shape of one side of the first molding lower die 220 away from the lower die body 210;
one side of the second lower molding die 230, which is far away from the lower die body 210, is an irregular concave curved surface, and the irregular concave curved surface has two oppositely arranged smooth curved surfaces;
the second lower molding die 230 and the first lower molding die 220 are used for processing and molding the same part with different degrees of freedom.
Optionally, the upper die body 110 includes an upper die plate 111, a second upper die equal-height cushion block 112, and a plurality of first upper die equal-height cushion blocks 113;
the first upper mold equal-height cushion blocks 113 are arranged on one side, close to the lower mold assembly 200, of the upper mold plate 111 at intervals, and the first forming upper mold 120 is arranged on one side, far away from the upper mold plate 111, of the first upper mold equal-height cushion blocks 113;
the second upper mold equal-height cushion blocks 112 are arranged on one side of the upper mold plate 111 close to the lower mold assembly 200 at intervals of the first upper mold equal-height cushion blocks 113, and the second upper molding mold 130 is arranged on one side of the second upper mold equal-height cushion blocks 112 far away from the upper mold plate 111.
In this embodiment, an upper mold plate 111 is provided to rigidly support the first upper mold 120 and the second upper mold 130. In order to rigidly support the first upper mold 120, a plurality of first upper mold contour spacers 113 are provided. The first upper mold equal-height cushion blocks 113 are arranged at intervals. To rigidly support the second upper mold section 130, a second upper mold contour spacer 112 is provided. For example, but not limiting of, the first upper mold height block 113 is a square block and the second upper mold height block 112 is a cylindrical block.
Optionally, the mold further includes a connecting assembly 300, the connecting assembly 300 includes a sleeve 310 disposed on the upper mold body 110 and a fitting 320 disposed on the lower mold body 210, the sleeve 310 is disposed near an edge of the upper mold body 110, and the fitting 320 is adapted to the sleeve 310;
when the upper mold assembly 100 approaches the lower mold assembly 200, the sleeve 310 is fitted and fastened to the outside of the fitting member 320.
In this embodiment, for example, but not limited to, the connecting assemblies 300 are provided in two sets, and the two sets of connecting assemblies 300 are oppositely disposed and located at the edge of the upper mold body 110/the lower mold body 210. It should be understood that the first and second mold halves are located between the connecting assemblies 300, and thus the connecting assemblies 300 also have a guiding function to guide the upper mold assembly 100 to approach the lower mold assembly 200; meanwhile, the two connecting assemblies 300 also have a positioning function to limit the relative positions of the upper mold assembly 100 and the lower mold assembly 200. For example, but not limited to, the sleeve 310 is a guide sleeve, and the engaging member 320 is a guide pillar, and the guide sleeve is sleeved outside the guide pillar to connect and fasten the upper die assembly 100 and the lower die assembly 200.
Optionally, the connecting assembly 300 further includes a protecting member 330, wherein the protecting member 330 is disposed on a side of the sleeve 310 away from the upper die body 110; the protector 330 is provided with a protection through-hole through which the fitting member 320 is inserted. For example, but not limiting of, the protector 330 is a copper retaining ring to reduce mechanical wear of the sleeve 310.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A mould for special-shaped part stretch forming is characterized by comprising:
the upper die assembly comprises an upper die body, a first forming upper die and a second forming upper die, wherein the first forming upper die and the second forming upper die are arranged on the upper die body at intervals;
the lower die assembly comprises a lower die body, a first forming lower die, a first positioning piece, a second forming lower die and a second positioning piece, wherein the first forming lower die and the second forming lower die are arranged on the lower die body at intervals; a second movable hole penetrating through the second lower forming die is formed in the second lower forming die, the second movable hole extends from one side, close to the upper die set, of the second lower forming die to the direction close to the lower die body, the second positioning piece is connected to the lower die body, and the second positioning piece is mounted in the second movable hole in a telescopic mode;
the first upper forming die is matched with the first lower forming die, and the second upper forming die is matched with the second lower forming die.
2. The die set of claim 1, wherein the first positioning member comprises a first telescopic body, a first positioning body and a plurality of first positioning posts, the first positioning body is disposed on the lower die body, the first positioning body is disposed on a side of the first telescopic body away from the lower die body, and the plurality of first positioning posts are protruded on a side of the first positioning body away from the first telescopic body;
the second positioning part comprises a second telescopic body, a second positioning body and a plurality of second positioning columns arranged at intervals, the second telescopic body is arranged on the lower die body, the second positioning body is arranged on one side, away from the lower die body, of the second telescopic body, and the second positioning columns are convexly arranged on one side, away from the second telescopic body, of the second positioning body;
the relative positions of the first positioning columns are the same as the relative positions of the second positioning columns.
3. The die for stretch forming of special-shaped parts according to claim 2, wherein the first telescopic body and the second telescopic body are both nitrogen spring telescopic bodies; and/or the presence of a gas in the gas,
the cross-sectional area of the first positioning body is polygonal, square or circular, and the cross-sectional area of the second positioning body is irregular curved surface.
4. The die for stretch forming of special-shaped parts according to claim 3, wherein the lower die body comprises a lower die plate, a plurality of lower die equal-height cushion blocks and a lower die mounting plate, and the plurality of lower die equal-height cushion blocks are arranged between the lower die plate and the lower die mounting plate at intervals;
the lower die plate is provided with a first through hole corresponding to the first movable hole and a second through hole corresponding to the second movable hole, and the first lower forming die and the second lower forming die are correspondingly arranged on one side of the lower die plate, which is far away from the lower die mounting plate;
one end of the first telescopic body is connected to the lower die mounting plate, and the other end of the first telescopic body penetrates through the first through hole and the first movable hole, so that the first positioning body is driven to reciprocate in the first movable hole and a plurality of first positioning columns are driven to be exposed out of the first forming lower die or accommodated in the first movable hole through the telescopic motion of the first telescopic body;
one end of the second telescopic body is connected to the lower die mounting plate, and the other end of the second telescopic body penetrates through the second through hole and the second movable hole, so that the second positioning body is driven to reciprocate in the second movable hole through the telescopic motion of the second telescopic body, and the second positioning columns are driven to be exposed out of the second forming lower die or to be accommodated in the second movable hole.
5. The die for stretch forming of special-shaped parts according to claim 4, wherein the lower die body further comprises a lower die limiting member, the lower die limiting member is disposed on the lower die mounting plate near the second telescopic body, and the lower die limiting member is disposed between the lower die mounting plate and the lower die plate, and the lower die limiting member is used for limiting the position of the second positioning body;
and a plurality of lower die equal-height cushion blocks and the lower die limiting parts are arranged at intervals.
6. The die for stretch forming of special-shaped parts according to claim 1, wherein the side of the first forming lower die away from the lower die body is an irregularly convex curved surface, and the shape of the side of the second positioning member away from the lower die body is the same as the shape of the side of the first forming lower die away from the lower die body;
one side of the second forming lower die, which is far away from the lower die body, is an irregular concave curved surface, and the irregular concave curved surface is provided with two smooth curved surfaces which are oppositely arranged;
the second lower forming die and the first lower forming die are used for processing and forming the same part with different degrees of freedom.
7. The die for stretch forming of special-shaped parts according to any one of claims 1 to 6, wherein the upper die body comprises an upper die plate, a second upper die equal-height cushion block and a plurality of first upper die equal-height cushion blocks;
the first upper die equal-height cushion blocks are arranged on one side, close to the lower die assembly, of the upper die plate at intervals, and the first forming upper die is arranged on one side, far away from the upper die plate, of the first upper die equal-height cushion blocks;
the second upper die equal-height cushion block is arranged on one side, close to the lower die assembly, of the upper die plate at intervals of the first upper die equal-height cushion block, and the second forming upper die is arranged on one side, far away from the upper die plate, of the second upper die equal-height cushion block.
8. The die for stretch forming of special-shaped parts according to any one of claims 1 to 6, further comprising a connecting assembly, wherein the connecting assembly comprises a sleeve piece arranged on the upper die body and an embedded piece arranged on the lower die body, the sleeve piece is arranged at the edge of the upper die body, and the embedded piece is matched with the sleeve piece;
when the upper die assembly is close to the lower die assembly, the sleeve is sleeved and fastened on the outer side of the embedded piece.
9. The die for stretch forming of special-shaped parts according to claim 8, wherein the connecting assembly further comprises a protecting member, and the protecting member is arranged on one side of the sleeve member, which is far away from the upper die body; the protection member is provided with a protection through hole through which the fitting member is inserted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120831908.2U CN216501870U (en) | 2021-04-22 | 2021-04-22 | Die for stretch forming of special-shaped parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120831908.2U CN216501870U (en) | 2021-04-22 | 2021-04-22 | Die for stretch forming of special-shaped parts |
Publications (1)
| Publication Number | Publication Date |
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| CN216501870U true CN216501870U (en) | 2022-05-13 |
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