CN216065171U - High-efficiency low-cost die changing structure and composite die - Google Patents

Abstract

The application provides a high-efficient low-cost mould structure and compound mould that change. The efficient low-cost mold changing structure comprises a nodular cast iron test mold. The ductile cast iron test die comprises a test upper die and a test lower die, the test upper die comprises a test upper die base and a test stamping head which are of an integrally formed structure, a test stamping curved surface is arranged on the test stamping head, the test stamping head is used for cutting after die change to form an upper die mounting area, and the upper die mounting area is used for mounting a formal stamping head of an alloy tool steel formal die; the test lower die comprises a test lower die base and a test lower die plate which are integrally formed, a test pressure-bearing curved surface corresponding to the test stamping curved surface is arranged on the test lower die plate, the test lower die plate is used for cutting after die change to form a lower die mounting area, and the lower die mounting area is used for mounting a formal lower die plate of an alloy tool steel formal die. The efficient low-cost mold changing structure is high in mold changing efficiency and low in mold changing cost.

Description

High-efficiency low-cost die changing structure and composite die

Technical Field

The utility model relates to the field of stamping dies, in particular to a high-efficiency low-cost die changing structure and a composite die.

Background

The general stamping die needs to be subjected to a die change procedure before preparation, namely, according to the final preparation data of the stamping die obtained by a product, in the die change procedure, the die change operation needs to be repeatedly carried out on the stamping die, the die change operation is often accompanied with metal processing such as brazing, grinding and cutting, the material of a stamping head is mainly high-hardness steel, when the die change operation is carried out on high-hardness steel, the difficulty of brazing, grinding and cutting on the high-hardness steel is higher, so that the problem of low die change efficiency of the stamping die is caused, the problems of cracks, plastic deformation and the like on the high-hardness steel are easily caused, particularly when the die change is carried out on a complex stamping curved surface, the die change is more difficult and the stamping head is more easily damaged, namely, if the stamping head directly adopting the high-hardness steel as a test die has the problems of higher scrap speed and often needs to replace the whole steel, and the high-hardness steel has higher cost, and the die change cost of the stamping die is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a high-efficiency low-cost die change structure and a composite die, which can improve the die change efficiency of a stamping die and reduce the die change cost of the stamping die.

The purpose of the utility model is realized by the following technical scheme:

an efficient low-cost form-modifying structure, comprising:

the efficient low-cost mold changing structure comprises a nodular cast iron test mold. The ductile cast iron test die comprises a test upper die and a test lower die, the test upper die comprises a test upper die base and a test stamping head which are of an integrally formed structure, a test stamping curved surface is arranged on the test stamping head, the test stamping head is used for cutting after die change to form an upper die mounting area, and the upper die mounting area is used for mounting a formal stamping head of an alloy tool steel formal die; the test lower die comprises a test lower die base and a test lower die plate which are integrally formed, a test pressure-bearing curved surface corresponding to the test stamping curved surface is arranged on the test lower die plate, the test lower die plate is used for cutting after die change to form a lower die mounting area, and the lower die mounting area is used for mounting a formal lower die plate of an alloy tool steel formal die.

In one embodiment, the lower test die comprises an alloy tool steel lower baffle, the alloy tool steel lower baffle is connected to one side, close to a formal lower die plate, of the lower test die holder, and the alloy tool steel lower baffle is abutted to one side, far away from the upper die holder, of the formal lower die plate.

In one embodiment, the test upper die comprises an alloy tool steel upper baffle, the alloy tool steel upper baffle is connected to one side, close to the test lower die base, of the test upper die base, and the alloy tool steel upper baffle abuts against one side, far away from the lower die base, of the formal stamping head.

In one embodiment, a plurality of material leaking holes are formed in one side, close to the formal lower template, of the testing lower die holder.

A composite die comprises an alloy tool steel main die and a high-efficiency low-cost die-changing structure in any embodiment;

the alloy tool steel formal die comprises a formal stamping head and a formal lower template, the formal stamping head is installed in an upper die installation area and is provided with a formal stamping curved surface, the formal lower template is installed in a lower die installation area and is provided with a formal pressure-bearing curved surface corresponding to the formal stamping curved surface.

In one embodiment, the formal punch is a multi-segment punch.

In one embodiment, the formal lower template is a multi-section lower template.

In one embodiment, the formal stamping head is a multi-segment stamping head, and the formal lower template is a multi-segment lower template.

In one embodiment, the formal stamping head is a three-segment stamping head.

In one embodiment, the formal lower template is a three-section lower template.

In one embodiment, the formal stamping head is a three-section stamping head, and the formal lower template is a three-section lower template.

In one embodiment, the composite die further comprises a first locking member, and the first locking member is connected with the test upper die base and the formal stamping head respectively.

In one embodiment, the composite die further comprises a second locking member, and the second locking member is respectively connected with the experimental lower die holder and the formal lower die plate.

In one embodiment, the first locking member and the second locking member are both pins.

Compared with the prior art, the utility model has at least the following advantages:

in the high-efficiency low-cost die change structure, the model data of the final stamping die can be obtained only by using the die change of the nodular cast iron test die, the nodular cast iron test die has better hardness, the die change data accuracy of the stamping die is ensured, and the nodular cast iron test die has better casting and cutting performances, so that the difficulty of brazing, polishing and cutting of a test stamping head and a test lower template is greatly reduced, the die change efficiency of the stamping die is improved, and the die change cost of the stamping die is reduced; after the ductile iron test die is modified, final model data are obtained, the test stamping head and the test lower die plate are cut and removed respectively, an upper die mounting area and a lower die mounting area are formed respectively, the stored data are used for molding the formal stamping head and the formal lower die plate, the formal stamping head is correspondingly mounted on the upper die mounting area of the test upper die base, the formal lower die plate is correspondingly mounted on the lower die mounting area of the test lower die base, and the stamping curved surface corresponds to the bearing curved surface, so that the modification of the stamping die is completed.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an embodiment of an efficient low-cost mold modification;

FIG. 2 is another schematic structural diagram of the high-efficiency low-cost mold modification structure shown in FIG. 1;

FIG. 3 is a schematic view of another embodiment of the high-efficiency low-cost mold modification structure shown in FIG. 1;

FIG. 4 is a schematic view of another embodiment of the high-efficiency low-cost mold modification structure shown in FIG. 1;

FIG. 5 is a schematic view of another embodiment of the efficient and low-cost mold modification structure shown in FIG. 1;

FIG. 6 is a schematic diagram of a composite mold in one embodiment;

FIG. 7 is another schematic structural view of a formal upper template of the composite mold shown in FIG. 6;

FIG. 8 is a further schematic structural view of a formal lower template of the composite mold shown in FIG. 6;

FIG. 9 is a schematic view of a first retaining member of the efficient, low-cost form-change mechanism of FIG. 6;

fig. 10 is a schematic structural view of a second retaining member in the composite mold of fig. 6.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application provides a high-efficiency low-cost die change structure which comprises a nodular cast iron test die, wherein the nodular cast iron test die comprises a test upper die and a test lower die, the test upper die comprises a test upper die base and a test punching head which are of an integrally formed structure, a test punching curved surface is arranged on the test punching head, the test punching head is used for cutting after die change to form an upper die mounting area, and the upper die mounting area is used for mounting a formal punching head of an alloy tool steel formal die; the test lower die comprises a test lower die base and a test lower die plate which are integrally formed, a test pressure-bearing curved surface corresponding to the test stamping curved surface is arranged on the test lower die plate, the test lower die plate is used for cutting after die change to form a lower die mounting area, and the lower die mounting area is used for mounting a formal lower die plate of an alloy tool steel formal die.

According to the efficient low-cost die change structure, the model data of the final stamping die can be obtained only by using the die change of the nodular cast iron test die, the nodular cast iron test die has better hardness, the die change data accuracy of the stamping die is ensured, and the nodular cast iron test die has better casting and cutting performances, so that the difficulty of brazing, polishing and cutting of the test stamping head and the test lower template is greatly reduced, the die change efficiency of the stamping die is improved, and the die change cost of the stamping die is reduced; after the ductile iron test die is modified, final model data are obtained, the test stamping head and the test lower die plate are cut and removed respectively, an upper die mounting area and a lower die mounting area are formed respectively, the stored data are used for molding the formal stamping head and the formal lower die plate, the formal stamping head is correspondingly mounted on the upper die mounting area of the test upper die base, the formal lower die plate is correspondingly mounted on the lower die mounting area of the test lower die base, and the stamping curved surface corresponds to the bearing curved surface, so that the modification of the stamping die is completed.

Referring to fig. 1 and fig. 2 together, in order to better understand the high-efficiency low-cost mold modification structure 10 of the present application, the high-efficiency low-cost mold modification structure 10 of the present application is further explained below, and the high-efficiency low-cost mold modification structure 10 of an embodiment includes a ductile iron test mold 100. The ductile iron test die 100 comprises an upper test die 110 and a lower test die 120, wherein the upper test die 110 comprises an upper test die holder 111 and a test punch head 112 which are integrally formed, a punching curved surface 101 is arranged on the test punch head 112, the test punch head 112 is used for cutting after die change to form an upper die mounting area 113, and the upper die mounting area 113 is used for mounting a formal punch head 210 of an alloy tool steel formal die 200; the test lower die 120 comprises a test lower die seat 121 and a test lower die plate 122 which are of an integrally formed structure, a pressure-bearing curved surface 102 corresponding to the stamping curved surface 101 is arranged on the test lower die plate 122, the test lower die plate 122 is used for cutting after die change to form a lower die mounting area 123, and the lower die mounting area 123 is used for mounting a formal lower die plate 220 of the alloy tool steel formal die 200.

According to the efficient low-cost die change structure 10, the model data of the final stamping die can be obtained only by using the die change of the nodular cast iron test die 100, the nodular cast iron test die 100 has good hardness, the die change accuracy of the stamping die is ensured, and the nodular cast iron test die 100 has good casting and cutting performances, so that the difficulty of brazing, polishing and cutting of the test stamping head 112 and the test lower template 122 is greatly reduced, the die change efficiency of the stamping die is improved, and the die change cost of the stamping die is reduced; after the ductile iron test die 100 is modified, final model data is obtained, the test stamping head 112 and the test lower die plate 122 are cut and removed respectively, an upper die mounting area 113 and a lower die mounting area 123 are formed respectively, the stored data are used for molding a formal stamping head 210 and a formal lower die plate 220, the formal stamping head 210 is correspondingly mounted on the upper die mounting area 113 of the test upper die holder 111, the formal lower die plate 220 is correspondingly mounted on the lower die mounting area 123 of the test lower die holder 121, and the stamping curved surface 101 and the bearing curved surface 102 are opposite to each other, so that the modification of the stamping die is completed, wherein the formal stamping head 210 and the formal lower die plate 220 only need to perform one-time molding without repeated modification, the molding difficulty is effectively reduced, and the molding efficiency is effectively improved. Compared with the traditional composite die, the method has the advantages that the formal stamping head 210 and the formal lower template 220 are directly subjected to die change, namely, the die change structure does not exist, the die change structure effectively reduces the die making difficulty, and the die making efficiency is improved. It should be noted that the acquisition of the modified data belongs to the existing acquisition technology, and is not within the protection scope of the present application, and in addition, the method for the molding steps of the formal stamping head 210 and the formal lower template 220 also belongs to the existing acquisition technology, and is not within the protection scope of the present application, and the present application only protects the connection relationship and the position relationship between the formal stamping head 210 and the formal lower template 220.

Referring to fig. 3, in one embodiment, the lower test die 120 further includes an alloy tool steel lower baffle 124, the alloy tool steel lower baffle 124 is connected to a side of the lower test die base 121 close to the formal lower die plate 220, and the alloy tool steel lower baffle 124 abuts against a side of the formal lower die plate 220 away from the upper die base. It can be understood that the alloy tool steel lower baffle 124 has a higher hardness relative to the nodular cast iron test mold 100, that is, the hardness of the alloy tool steel lower baffle 124 is higher than that of the test lower mold base 121, the effective area of the alloy tool steel lower baffle 124 on the test lower mold base 121 is larger, the effective area of the formal lower baffle 220 is smaller, when the formal punch head 210 and the formal lower baffle 220 of the high-efficiency low-cost mold modification structure 10 punch a workpiece, the formal lower baffle 220 receives the acting force of the formal punch head 210, the formal lower baffle 220 generates another acting force on the alloy tool steel lower baffle 124 after receiving the acting force, the alloy tool steel lower baffle 124 also generates an acting force and the test lower mold base 121, if the alloy tool steel lower baffle 124 is not installed, the formal lower baffle 220 directly abuts against the test lower mold base 121, because the contact area of the formal lower baffle 220 and the test lower mold base 121 is smaller, therefore, the pressure of the formal lower template 220 on the test lower die holder 121 is high, and the hardness of the test lower die holder 121 is low, so that the test lower die holder is easy to deform and damage under the action of the alloy tool steel lower template; if the alloy tool steel lower baffle 124 is installed, because the alloy tool steel lower baffle 124 has higher hardness, when the official lower template 220 acts on the alloy tool steel lower baffle 124, the alloy tool steel lower baffle 124 is not easy to deform, and after the force is applied, because the contact area between the alloy tool steel lower baffle 124 and the test lower die holder 121 is larger, the pressure generated on the test lower die holder 121 is smaller, so the alloy tool steel lower baffle 124 can effectively protect the test lower die holder 121, compared with the condition that the alloy tool steel lower baffle 124 is not installed, the instantaneous pressure on the test lower die holder 121 is reduced, the damage and the deformation degree of the lower die holder are effectively ensured to be smaller, and further the service life of the high-efficiency low-cost die-changing structure 10 is effectively ensured.

Referring to fig. 4, in one embodiment, the testing upper die 110 includes an alloy tool steel upper baffle 114, the alloy tool steel upper baffle 114 is connected to a side of the testing upper die base 111 close to the testing lower die base 121, and the alloy tool steel upper baffle 114 abuts against a side of the formal stamping head 210 away from the lower die base. It can be understood that the alloy tool steel upper baffle 114 has a higher hardness relative to the ductile iron test die 100, that is, the hardness of the alloy tool steel upper baffle 114 is higher than that of the test upper die holder 111, the effective area of the alloy tool steel upper baffle 114 on the test upper die holder 111 is larger, the effective area of the formal punch 210 is smaller, when the formal punch 210 and the formal lower die plate 220 of the high-efficiency low-cost die-changing structure 10 punch a workpiece, the formal punch 210 acts on the formal lower die plate 220, the formal punch 210 receives the reaction force of the formal lower die plate 220, the formal upper die plate receives the reaction force of the formal lower die plate 220 to generate another reaction force on the alloy tool steel upper baffle 114, and the alloy tool steel upper baffle 114 also generates a reaction force with the test upper die holder 111, if the alloy tool steel upper baffle 114 is not installed, the formal punch 210 directly abuts against the test upper die holder 111, because the contact area between the formal stamping head 210 and the test upper die holder 111 is small, the pressure of the formal stamping head 210 on the test upper die holder 111 is large, and the hardness of the test upper die holder 111 is low, so that deformation and damage are easily caused under the action of the formal stamping head 210; if the alloy tool steel upper baffle 114 is installed, because the alloy tool steel upper baffle 114 has higher hardness, when the formal stamping head 210 acts on the alloy tool steel upper baffle 114, the alloy tool steel upper baffle 114 is not easy to deform, and after the formal stamping head is stressed, because the contact area between the alloy tool steel upper baffle 114 and the test upper die holder 111 is larger, the pressure generated to the test upper die holder 111 is smaller, so the alloy tool steel upper baffle 114 can effectively protect the test upper die holder 111, compared with the condition that the alloy tool steel upper baffle 114 is not installed, the instantaneous pressure to the test upper die holder 111 is reduced, the damage and deformation of the upper die holder are effectively ensured to be smaller, and the service life of the high-efficiency low-cost die-changing structure 10 is effectively prolonged.

Referring to fig. 5, in one embodiment, a plurality of material leaking holes 103 are formed on one side of the lower testing mold base 121 close to the formal lower mold plate 220. It can be understood that the waste materials are generated during the operation of the die, the material leakage holes 103 can effectively enable the waste materials to fall off from the holes, and the problem that the waste materials are accumulated to cause the continuous operation is solved.

Referring to fig. 6, the present application further provides a composite mold including the mold modification structure 10 of any of the above embodiments. Referring to fig. 1 and fig. 2 together, in this embodiment, the high-efficiency low-cost die-changing structure 10 includes a nodular cast iron test die 100 and an alloy tool steel main die 200, where the nodular cast iron test die 100 includes a test upper die 110 and a test lower die 120, the test upper die 110 includes a test upper die holder 111 and a test punch head 112 which are integrally formed, the test punch head 112 is provided with a punching curved surface 101, and an upper die mounting area 113 is formed after the test punch head 112 of the test upper die 110 is cut; the test lower die 120 comprises a test lower die base 121 and a test lower die plate 122 which are of an integrally formed structure, a pressure-bearing curved surface 102 corresponding to the stamping curved surface 101 is arranged on the test lower die plate 122, and a lower die mounting area 123 is formed after the test lower die plate 122 of the test lower die 120 is cut. The alloy tool steel formal die 200 comprises a formal stamping head 210 and a formal lower template 220, wherein the formal stamping head 210 is installed in the upper die installation area 113, the formal stamping head 210 is provided with a stamping curved surface 101, the formal lower template 220 is installed in the lower die installation area 123, and the formal lower template 220 is provided with a pressure-bearing curved surface 102.

In the composite die, the die change structure 10 with high efficiency and low cost only utilizes the die change of the nodular cast iron test die 100 to obtain the model data of the final stamping die, the nodular cast iron test die 100 has better hardness, the die change data accuracy of the stamping die is ensured, and the nodular cast iron test die 100 has better casting and cutting performances, so that the difficulty of brazing, polishing and cutting of the test stamping head 112 and the test lower die plate 122 is greatly reduced, the die change efficiency of the stamping die is improved, and the die change cost of the stamping die is reduced; after the ductile iron test die 100 is modified, storing final model data, cutting and removing the test stamping head 112 and the test lower die plate 122 respectively, and further forming an upper die mounting area 113 and a lower die mounting area 123 respectively, performing die making on the formal stamping head 210 and the formal lower die plate 220 by using the stored data, correspondingly mounting the formal stamping head 210 on the upper die mounting area 113 of the test upper die holder 111, and correspondingly mounting the formal lower die plate 220 on the lower die mounting area 123 of the test lower die holder 121, so that the stamping curved surface 101 corresponds to the pressure-bearing curved surface 102, and the modification of the stamping die is completed, wherein the formal die only needs to be modified once, the die modification is not required repeatedly, the die making difficulty is effectively reduced, and the die making efficiency is effectively improved.

Referring to fig. 7 and 8, in one embodiment, the formal punch head 210 is a multi-segment punch head and/or the formal lower template 220 is a multi-segment lower template. It can be understood that, if the formal punch 210 or the formal lower template 220 are a whole segment, the steel material is broken during the molding process, and further, the entire segment of the official punch 210 or the entire segment of the official lower mold plate 220 needs to be replaced, thereby increasing the molding cost of the composite mold 20 and reducing the molding efficiency of the composite mold 20, and therefore, in the present application, the formal punch 210 is a multi-segment formal punch 210, the multi-segment formal punch is correspondingly connected to form a whole segment formal punch 210, during die making, steel breakage only needs to replace one section of the damaged multi-section formal stamping head 210, corresponding die making is carried out on the damaged one section of formal stamping head 210 again, finally, the newly manufactured one section of formal stamping head 210 is correspondingly connected, and die making is not needed to be carried out on the whole section of formal stamping head 210, so that the die making efficiency is increased, the die making difficulty is reduced, and the waste of steel is effectively reduced; the formal lower template 220 is a multi-section formal lower template 220, the multi-section formal lower templates are correspondingly connected to form the whole-section formal lower template 220, steel is broken during mold making, only one section of the damaged multi-section formal lower template 220 needs to be replaced, the damaged one section of the formal lower template 220 is subjected to corresponding mold making again, finally, the newly manufactured one section of the formal lower template 220 is subjected to corresponding connection, and the whole-section formal lower template 220 does not need to be subjected to mold making again, so that the mold making efficiency is improved, the mold making difficulty is reduced, and the waste of steel is effectively reduced.

Referring to fig. 7 and 8, in one embodiment, the formal punch head 210 is a three-stage punch head and/or the formal lower die plate 220 is a three-stage lower die plate. It can be understood that, if the formal stamping head 210 or the formal lower template 220 is a segment, the steel is broken during the die making, and the entire segment of the formal stamping head 210 or the entire segment of the formal lower template 220 needs to be replaced, so that the die making cost of the composite die 20 is increased, and the die making efficiency of the composite die 20 is reduced, therefore, in the present application, the formal stamping head 210 is a three-segment formal stamping head 210, and the three-segment formal stamping heads are correspondingly connected to form the entire segment of the formal stamping head 210, so that the steel is broken during the die making, only one segment of the damaged three-segment formal stamping head 210 needs to be replaced, then the damaged one segment of the formal stamping head 210 is correspondingly die-made again, and finally the newly-made one segment of the formal stamping head 210 is correspondingly connected, and the die making of the entire segment of the formal stamping head 210 is not needed, and each segment of the three segments of the formal stamping heads 210 only needs to be connected twice, not only the molding efficiency is increased and the molding difficulty is reduced, but also the waste of steel is effectively reduced; the formal lower template 220 is three sections of formal lower templates 220, the three sections of formal lower templates are correspondingly connected to form the whole section of formal lower template 220, steel is broken during die making, only one section of the damaged three sections of formal lower templates 220 needs to be replaced, corresponding die making is carried out on the damaged one section of formal lower template 220 again, finally, the newly manufactured one section of formal lower template 220 is correspondingly connected, die making is not needed to be carried out on the whole section of formal lower template 220, and only two connections are needed between each section of the three sections of formal stamping heads 210, so that the die making efficiency is improved, the die making difficulty is reduced, and the waste of steel is effectively reduced.

Referring to fig. 9, in one embodiment, the composite mold 20 further includes a first locking member 310, and the first locking member 310 is connected to the testing upper mold base 111 and the formal stamping head 210, respectively. It can be understood that the first locking member 310 connects the testing upper die base 111 and the formal press ram 210, which effectively ensures the connection stability of the testing upper die base 111 and the formal press ram 210, and thus effectively ensures the structural compactness and structural stability of the composite die 20.

Referring to fig. 10, in one embodiment, the composite mold 20 further includes a second locking member 320, and the second locking member 320 is connected to the lower mold base 121 and the lower mold plate 220, respectively. It can be understood that the second locking member 320 connects the lower die holder 121 and the lower template 220, so as to effectively ensure the connection stability of the lower die holder 121 and the lower template 220, and further effectively ensure the structural compactness and structural stability of the composite die 20.

Referring to fig. 9 and 10, in one embodiment, first locking member 310 and second locking member 320 are pins. It can be understood that the pins not only help the official stamping head 210 and the testing upper die holder 111 in the die and help the official lower die plate 220 and the testing lower die holder 121 in the die to be internally fixed, but also simultaneously play a role in connecting and fixing the official stamping head 210 and the testing upper die holder 111 and the official lower die plate 220 and the testing lower die holder 121, effectively ensure the connection stability of the testing lower die holder 121 and the official lower die plate 220, and further effectively ensure the structural compactness and structural stability of the composite die 20.

Compared with the prior art, the utility model has at least the following advantages:

in the high-efficiency low-cost die change structure 10, the acquisition of the model data of the final stamping die is realized only by using the die change of the nodular cast iron test die 100, the nodular cast iron test die 100 has better hardness, the die change data accuracy of the stamping die is ensured, and the nodular cast iron test die 100 has better casting and cutting performances, so that the difficulty of brazing, grinding and cutting of the test stamping head 112 and the test lower template 122 is greatly reduced, the die change efficiency of the stamping die is improved, and the die change cost of the stamping die is reduced; after the ductile iron test die 100 is modified, final model data is obtained, the test stamping head 112 and the test lower die plate 122 are cut and removed respectively, an upper die mounting area 113 and a lower die mounting area 123 are formed respectively, the stored data is used for performing die making on a formal stamping head 210 and a formal lower die plate 220, the formal stamping head 210 is correspondingly mounted on the upper die mounting area 113 of the test upper die holder 111, the formal lower die plate 220 is correspondingly mounted on the lower die mounting area 123 of the test lower die holder 121, and the stamping curved surface 101 corresponds to the pressure-bearing curved surface 102. The utility model provides a high-efficient low-cost mould structure that changes, the effectual mould degree of difficulty that has reduced just the effectual efficiency that improves the mould.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (9)

1. The utility model provides a high-efficient low-cost mould structure that changes, its characterized in that includes:

the ductile cast iron test die comprises an upper test die and a lower test die, wherein the upper test die comprises an upper test die base and a test stamping head which are of an integrally formed structure, a test stamping curved surface is arranged on the test stamping head, the test stamping head is used for cutting after die change to form an upper die mounting area, and the upper die mounting area is used for mounting a formal stamping head of a formal die of alloy tool steel; the test lower die comprises a test lower die base and a test lower die plate which are integrally formed, a test pressure-bearing curved surface corresponding to the test stamping curved surface is arranged on the test lower die plate, the test lower die plate is used for cutting after die change to form a lower die mounting area, and the lower die mounting area is used for mounting a formal lower die plate of an alloy tool steel formal die.

2. The high-efficiency low-cost die change structure according to claim 1, wherein the test lower die further comprises an alloy tool steel lower baffle, the alloy tool steel lower baffle is connected to one side of the test lower die holder, which is close to a formal lower die plate, and the alloy tool steel lower baffle is abutted to one side of the formal lower die plate, which is far away from the upper die holder.

3. The efficient and low-cost die changing structure according to claim 1, wherein the upper testing die further comprises an alloy tool steel upper baffle plate, the alloy tool steel upper baffle plate is connected to one side, close to the lower testing die holder, of the upper testing die holder, and the alloy tool steel upper baffle plate is abutted to one side, far away from the lower die holder, of the formal stamping head.

4. The high-efficiency low-cost die change structure according to claim 1, wherein a plurality of material leaking holes are formed in one side, close to the formal lower template, of the test lower die holder.

5. A composite die comprising an alloy tool steel master die and the efficient and low cost die modification structure of any one of claims 1 to 4;

the alloy tool steel formal die comprises a formal stamping head and a formal lower template, the formal stamping head is installed in the upper die installation area and is provided with a formal stamping curved surface, the formal lower template is installed in the lower die installation area and is provided with a formal pressure-bearing curved surface corresponding to the formal stamping curved surface.

6. The composite die as claimed in claim 5, wherein the formal punch is a multi-segment punch; and/or the presence of a gas in the gas,

the formal lower template is a multi-section lower template.

7. The composite die as claimed in claim 5, wherein the formal punch is a three-segment punch; and/or the presence of a gas in the gas,

the formal lower template is a three-section lower template.

8. The composite die as claimed in claim 5, wherein the high efficiency and low cost die changing structure further comprises a first locking member and a second locking member, the first locking member is connected with the test upper die base and the formal stamping head respectively, and the second locking member is connected with the test lower die base and the formal lower die plate respectively.

9. The composite mold of claim 8, wherein the first locking member or the second locking member is a pin.

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