CN217858514U - Stamping die and punch press - Google Patents

Abstract

The application discloses a stamping die, which comprises an upper die and a lower die, wherein the upper die comprises an upper die plate, a punch and a material pushing assembly, the punch and the material pushing assembly are connected to the upper die plate, and the material pushing assembly comprises a material pushing piece; the lower die comprises a die holder and a pushing part, the die holder is provided with a forming cavity for placing materials, and the pushing part is arranged on the die holder and is adjacent to the forming cavity; the punch is used for being matched with the forming cavity after the upper die and the lower die are closed so as to punch and form the material; the pushing piece is used for pushing the material pushing piece to move close to the punch in the die opening process of the upper die and the lower die so as to push away the material formed by punching. The pushing assembly and the pushing piece of the stamping die are simple in structure, occupied space on the stamping die and the punch is small, the pushing assembly and the pushing piece are matched with each other in the die opening process to push a product tightly held on the punch away, and the effect of accurately pushing materials at fixed time and fixed point is achieved. This application discloses a punch press that contains this stamping die simultaneously.

Description

Stamping die and punch press

Technical Field

The application relates to the technical field of stamping equipment, concretely relates to stamping die and contain this stamping die's punch press.

Background

Currently, a punch press is generally used to punch a material to form a desired product. After the materials are subjected to punch forming, the formed products have large holding force on the punch, and product demoulding needs to give enough thrust and proper stroke to the products at a specific time point so as to push the products held on the punch away. The traditional demoulding mode comprises blowing pushing by a blowing pin, cylinder pushing, spring pushing and manual pushing so as to push the product tightly held on the punch. However, the traditional demoulding manner occupies a very large space of the punch press, and the material pushing time point is not accurate, so that the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a stamping die and a punch press including the stamping die, so as to reduce the space occupied by the material pushing manner on the punch press, achieve the effect of precisely pushing material at fixed time and point, and improve the production efficiency.

The embodiment of the application provides a stamping die, which comprises an upper die and a lower die which are arranged oppositely, wherein the upper die comprises an upper die plate, a punch and a material pushing assembly, the punch and the material pushing assembly are connected to the upper die plate and are positioned on one side, facing to the lower die, of the upper die plate, the material pushing assembly comprises a material pushing piece, and the material pushing piece can move relative to the punch to be close to or far away from the punch; the lower die comprises a die holder and a pushing piece for pushing the material pushing piece in a pushing mode, the die holder is provided with a forming cavity for placing materials, and the pushing piece is arranged on the die holder and is adjacent to the forming cavity; the punch is used for being matched with the forming cavity after the upper die and the lower die are closed so as to punch and form the material; the pushing piece is used for pushing the pushing piece to move close to the punch in the die opening process of the upper die and the lower die so as to push away the materials after punch forming.

In some embodiments, the pushing assembly further includes a pushing seat and an elastic member, the pushing seat is connected to one side of the upper plate facing the lower die; the pushing part comprises a pushing body and a pushing part, the pushing body is movably arranged on the pushing seat and is arranged at an interval with the punch, the elastic part is elastically arranged between the pushing seat and the pushing body, the pushing part is connected with the pushing body and extends towards the punch, the pushing part is lower than the punch, the pushing body can move relative to the punch to be close to or far away from the punch, and the pushing part moves along with the pushing body; in the die opening process of the upper die and the lower die, the pushing piece pushes the pushing body to move close to the punch, so that the pushing body drives the pushing part to move below the punch.

In some embodiments, the pushing assembly further includes a bearing member, the bearing member is connected to the pushing seat and faces the lower mold, a pushing groove is formed in one side of the bearing member facing the pushing seat, the pushing part is slidably disposed in the pushing groove, and the bearing member and the pushing seat cooperate to position the pushing part; the material pushing seat is provided with a body groove and a mounting groove communicated with the body groove, the material pushing body is movably arranged in the body groove, the elastic piece is elastically arranged in the mounting groove, one end of the elastic piece is stopped in the mounting groove, and the other end of the elastic piece is connected with the material pushing body.

In some embodiments, the material pushing seat is further provided with a punching groove, the punching groove is located between the mounting groove and the body groove and is respectively communicated with the mounting groove and the body groove, the mounting groove is communicated with the body groove through the punching groove, the punch penetrates through the punching groove and is connected with the upper template, and the material pushing part extends towards the punching groove.

In some embodiments, the pushing assembly further comprises a blocking piece, the blocking piece is arranged in the mounting groove and far away from the body groove, and the blocking piece is abutted with one end of the elastic piece to stop the elastic piece; the punch is provided with a guide groove which is respectively communicated with the body groove and the mounting groove, the other end of the elastic piece penetrates through the guide groove and extends to the body groove to be connected with the pushing body, and the guide groove is used for guiding the elastic direction of the elastic piece.

In some embodiments, the pushing assembly further includes a first guiding element, the first guiding element is movably disposed in the guiding groove and the body groove, one end of the first guiding element is connected to the pushing body, the other end of the first guiding element is connected to the other end of the elastic element, and the other end of the elastic element is connected to the pushing body through the first guiding element.

In some embodiments, along a mold closing or opening direction of the upper mold and the lower mold, the material pushing body is provided with a material pushing surface deviating from the punch, and a first material pushing inclined surface and a second material pushing inclined surface which are positioned at two ends of the material pushing surface, the first material pushing inclined surface and the second material pushing inclined surface are both connected with the material pushing surface, and the first material pushing inclined surface is positioned above the second material pushing inclined surface; the pushing part comprises a pushing body and a pushing part, the pushing body is arranged on the die holder and is adjacent to the forming cavity, the pushing part is arranged on the pushing body and faces the forming cavity, and the pushing part is used for pushing the pushing inclined plane, the first pushing inclined plane and the second pushing inclined plane; in the die opening process of the upper die and the lower die, the pushing part pushes the material pushing surface to enable the material pushing body to move close to the punch.

In some embodiments, along a mold closing or opening direction of the upper mold and the lower mold, the pushing portion is provided with a pushing surface departing from the pushing body, and a first pushing inclined surface and a second pushing inclined surface located at two ends of the pushing surface, the first pushing inclined surface and the second pushing inclined surface are both connected with the pushing surface, the first pushing inclined surface is located below the second pushing inclined surface, the first pushing inclined surface is adapted to the first pushing inclined surface, and the second pushing inclined surface is adapted to the second pushing inclined surface.

In some embodiments, the upper mold further comprises at least one stop member connected to a side of the upper mold plate facing the lower mold, the at least one stop member being configured to limit the upper mold during closing of the upper mold and the lower mold.

The embodiment of the application also provides a punch press which comprises the stamping die.

In the stamping die and the punch press comprising the stamping die, the material pushing part of the material pushing assembly of the upper die in the stamping die can move relative to the punch head to be close to or far away from the punch head, the punch head is matched with the forming cavity to punch and form materials into required products in the die closing process of the upper die and the lower die, and meanwhile, the pushing part can be propped against the material pushing part to move away from the punch head so as to avoid interference generated by the action of the material pushing part and the punch head for punching the materials; in the die opening process, the pushing piece pushes the pushing piece to enable the pushing piece to move close to the punch so as to push away a product tightly held on the punch, and therefore the product is demoulded. In this scheme, stamping die's the simple structure who pushes away the material subassembly and support and push away the piece, shared space is less on stamping die and punch press, and applicable in miniature punch press pushes away the material subassembly and supports and push away the piece and mutually support in order to push away the product of embracing tightly on the drift at the in-process of die sinking, has realized the effect that accurate timing fixed point pushed away, is favorable to improving production efficiency.

Drawings

Fig. 1 is a schematic perspective view of a stamping die provided in the present application when the stamping die is clamped.

Fig. 2 is a schematic perspective view of the stamping die provided by the present application when the die is opened.

Fig. 3 is a schematic perspective view of a material stamped by the stamping die and a formed product.

Fig. 4 is an exploded view of the lower mold shown in fig. 2.

Fig. 5 is an exploded view of the upside down upper mold shown in fig. 2.

Fig. 6 is an exploded view of the pusher assembly and punch shown in fig. 5.

Figure 7 is a schematic view of yet another exploded configuration of the pusher assembly and punch shown in figure 5.

Fig. 8 is a schematic view of the cross-sectional structure of the press die along line viii-viii shown in fig. 1.

Fig. 9 is a schematic view showing still another state of the cross-sectional structure of the press die shown in fig. 8.

Description of the main elements

Stamping die 100

Upper die 10

Upper template 11

Punch 12

Guide groove 121

Stamping surface 122

Pushing assembly 13

Pushing part 131

Pusher body 1311

Pusher surface 1311a

First pushing slope 1311b

Second pushing inclined surface 1311c

Pushing unit 1312

Pusher block 132

Body slot 1321

Mounting groove 1322

Punched slot 1323

Elastic member 133

Carrier 134

Chute 1341

Dodging hole 1342

Plugging piece 135

First guide 136

Stop 14

Second guide 15

Lower die 20

Die holder 21

Forming cavity 211

The molding portion 2111

Arc portion 2112

Support portion 2113

Push-against piece 22

Push body 221

Push part 222

Pushing surface 2221

First pushing inclined plane 2222

Second pushing inclined plane 2223

Lower die plate 23

Inner caulking groove 231

Guide cylinder 24

Material 200

Product 300

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, it is to be noted that the meaning of "a plurality" is two or more unless specifically defined otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be mechanically, electrically, or communicatively linked, directly or indirectly through intervening media, or in a communication or interaction between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise direct contact between the first and second features through another feature in between. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal thickness than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply means that the first feature is less horizontally thick than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed.

The embodiment of the application provides a stamping die, which comprises an upper die and a lower die which are arranged oppositely, wherein the upper die comprises an upper die plate, a punch and a material pushing assembly; the lower die comprises a die holder and a pushing piece for pushing the pushing piece, the die holder is provided with a forming cavity for placing materials, and the pushing piece is arranged on the die holder and is adjacent to the forming cavity; the punch is used for being matched with the forming cavity after the upper die and the lower die are closed so as to punch and form the material; the pushing piece is used for pushing the pushing piece to move close to the punch in the process of opening the upper die and the lower die so as to push away the material subjected to punch forming.

The embodiment of the application simultaneously provides a punch press, including as above stamping die.

According to the stamping die and the punch press comprising the stamping die, the material pushing part of the material pushing assembly of the upper die in the stamping die can move relative to the punch head to be close to or far away from the punch head, the punch head is matched with the forming cavity to punch and form materials into required products in the die assembly process of the upper die and the lower die, and meanwhile, the pushing part can be abutted to the material pushing part to move away from the punch head so as to avoid interference generated by actions of the material pushing part and the punch head for punching the materials; in the die opening process, the pushing piece pushes the pushing piece to enable the pushing piece to move close to the punch so as to push away a product tightly held on the punch, and therefore the product is demoulded. In this scheme, stamping die's the simple structure who pushes away the material subassembly and support and push away the piece, shared space is less on stamping die and punch press, and is applicable in miniature punch press, pushes away the material subassembly and supports and pushes away the piece and mutually support in the in-process of die sinking and fall in order to push away the product of embracing tightly on the drift, has realized the effect that accurate material was pushed away, is favorable to improving production efficiency.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 and 2, some embodiments of the present application provide a stamping die 100. The press die 100 includes an upper die 10 and a lower die 20 disposed opposite to each other. Referring to fig. 3, the upper die 10 and the lower die 20 of the stamping die 100 cooperate to stamp the material 200, so that the material 200 is stamped and formed into the desired product 300. The material 200 may be a rod-shaped or plate-shaped object that can be deformed.

Referring to fig. 2 and 5, the upper die 10 includes an upper die plate 11, a punch 12 and a pushing assembly 13, the punch 12 and the pushing assembly 13 are both connected to the upper die plate 11, the punch 12 and the pushing assembly 13 are both located on a side of the upper die plate 11 facing the lower die 20, the pushing assembly 13 includes a pushing member 131, and the pushing member 131 can move relative to the punch 12 to approach or depart from the punch 12. Referring to fig. 2, the lower mold 20 includes a mold base 21 and a pushing member 22 for pushing the pushing member 131, the mold base 21 is provided with a forming cavity 211 for placing the material 200, the pushing member 22 is disposed on the mold base 21 and is adjacent to the forming cavity 211, and the punch 12 is used for cooperating with the forming cavity 211 to punch and form the material 200 after the upper mold 11 and the lower mold 20 are closed; the pushing part 22 is used for pushing the pushing part 131 to move close to the punch 12 during the mold opening process of the upper mold 10 and the lower mold 20 so as to push away the stamped material 200. During the closing of the upper die 10 and the lower die 20 (the state shown in fig. 1), the pusher 22 can push the pusher 131 away from the punch 12, and at the same time, the punch 12 cooperates with the forming cavity 211 to punch the material 200. During the opening of the upper die 10 and the lower die 20 (as shown in fig. 2), the pusher 22 can push the pusher 131 close to the punch 12, so that the pusher 131 pushes away the product 300 clasped on the punch 12.

Some embodiments provide a stamping die 100 that performs substantially as follows: first, the upper mold 10 and the lower mold 20 are opened, that is, as shown in fig. 2. The material 200 is then placed in the molding cavity 211 of the lower mold 20. Then, the upper die 10 and the lower die 20 are closed and are closed to the state shown in fig. 1, wherein during the closing process of the upper die 10 and the lower die 20, the pushing member 22 can push the pushing member 131 to move away from the punch 12, so as to avoid interference between the pushing member 131 and the action of the punch 12 for punching the material 200. Then, the upper die 10 and the lower die 20 are opened to the state shown in fig. 2, wherein during the opening process of the upper die 10 and the lower die 20, the product 300 will hug the punch 12 and move along with the upper die 10, and the pusher 22 can hold the pusher 131 to move close to the punch 12 to push away the product 300 hugged on the punch 12. In this manner, demolding of the product 300 is achieved.

In the stamping die 100 provided in the embodiment of the application, the pushing element 131 of the pushing assembly 13 of the upper die 10 can move relative to the punch 12 to be close to or far away from the punch 12, in the process of closing the upper die 10 and the lower die 20, the punch 12 is matched with the forming cavity 211 to punch and form the material 200 into the required product 300, and meanwhile, the pushing element 22 can push the pushing element 131 to move away from the punch 12, so as to avoid interference between the pushing element 131 and the action of the punch 12 for stamping the material 200; in the process of opening the upper die 10 and the lower die 20, the product 300 holds the punch 12 tightly and moves along with the upper die 10, in the process of opening the die, the pushing part 22 pushes the pushing part 131 to enable the pushing part 131 to move close to the punch 12, so that the product 300 on the punch 12 is pushed away, and then demolding of the product 300 is realized.

In one embodiment, the pushing member 131 and the pushing member 22 may be engaged by a slant. In the mold closing process, the pushing member 22 avoids the pushing member 131 through the inclined surface matching, so that the pushing member 131 moves away from the punch 12, and the interference between the pushing member 131 and the action of the punch 12 for punching the material 200 is avoided. During the mold opening process, the pushing member 22 pushes against the pushing member 131 through a bevel fit, so that the pushing member 131 moves close to the punch 12, and the product 300 on the punch 12 is pushed away. Obviously, the pushing member 22 and the pushing member 131 may also be in a chute-oblique pin fit or other fit manner that can move the pushing member 131 closer to or away from the punch 12.

Referring to fig. 4, in some embodiments, the lower mold 20 further includes a lower mold plate 23, the lower mold plate 23 defines an inner insertion groove 231, and one end of the mold base 21 is disposed in the inner insertion groove 231. So, through set up interior caulking groove 231 on lower die plate 23 for the die holder 21 is embedded on lower die plate 23, thereby makes die holder 21 set up more firmly on lower die plate 23, guarantees to go up mould 10 and lower mould 20 at the in-process of compound die punching press material 200, and material 200 can be placed in shaping cavity 211 steadily, guarantees the precision of the punching press of material 200.

Referring to fig. 4, in an embodiment, the forming cavity 211 includes two forming portions 2111, two arc portions 2112 and two supporting portions 2113, the two arc portions 2112 are respectively disposed at two ends of the forming portion 2111 and are both connected to the forming portion 2111, and the two supporting portions 2113 are respectively connected to the corresponding arc portions 2112 and are away from the forming portion 2111. The supporting portion 2113 is used for carrying the material 200, the forming portion 2111 is used for forming the material 200 into the product 300, and the arc portion 2112 is used for smoothly entering the material 200 into the forming portion 2111 under punching of the punch 12 when the upper die 10 and the lower die 20 are clamped. In a stamping process, two ends of the material 200 are respectively positioned on the supporting portions 2113, then the upper die 10 and the lower die 20 are closed, the punch 12 stamps the material 200, so that the two ends of the material 200 smoothly enter the forming portions 2111 under the transition of the arc portions 2112, and the two ends of the material 200 are bent and formed into the product 300. Obviously, the forming cavity 211 may be adaptively disposed according to the shape of the product 300, which is not specifically limited in this embodiment.

Referring to fig. 6 and 7, in the embodiment of the present application, the number of the pushing members 131 is four, the number of the punches 12 is two, two pushing members 131 are in one group, and each group is spaced apart from another group, the moving directions of the two groups of pushing members 131 are opposite, and each group of pushing members 131 is used for pushing off one product 300 on the corresponding punch 12, so that the stamping die 100 provided in the embodiment of the present application can stamp two materials 200 and form two products 300 each time the die is closed, and push off the products 300 on the corresponding punches 12 respectively when the die is opened, which is beneficial to improving the production efficiency. In other embodiments, each punch 12 can punch two materials 200 at the same time according to the shape of the formed product 300, and each group of the pusher 131 can be used to push off two products 300 on the corresponding punch 12. Obviously, the number of the pushing elements 131 may also be more or less, for example, two, three, five, six, etc., and may be set according to actual requirements, which is not limited in the embodiments of the present application.

Referring to fig. 6 and 7, in some embodiments, the pushing assembly 13 further includes a pushing base 132 and an elastic member 133. The stripper seat 132 is connected to a side of the upper die plate 11 facing the lower die 20. The pushing element 131 includes a pushing body 1311 and a pushing portion 1312, the pushing body 1311 is movably disposed on the pushing seat 132 and spaced from the punch 12, the elastic element 133 is elastically disposed between the pushing seat 132 and the pushing body 1311, the pushing portion 1312 is connected to the pushing body 1311 and extends toward the punch 12, the pushing portion 1312 is lower than the punch 12 (see fig. 7), the pushing body 1311 is capable of moving relative to the punch 12 to approach or separate from the punch 12, and the pushing portion 1312 moves along with the pushing body 1311. During the mold opening process of the upper mold 10 and the lower mold 20, the pushing member 22 pushes the pushing body 1311 to move close to the punch 12, so that the pushing body 1311 drives the pushing part 1312 to move below the punch 12. Thus, by arranging the material pushing seat 132, the material pushing members 131 and the elastic members 133 can be intensively arranged on the material pushing seat 132, so that the material pushing assembly 13 is arranged in a modularized manner, the material pushing assembly 13 can be easily arranged on the upper die plate 11, the installation and disassembly processes are simple, and the replacement of different material pushing assemblies 13 is facilitated, so that the application range of the stamping die 100 is expanded. By arranging the elastic member 133, the elastic member 133 provides an elastic force for the pushing member 131, when the pushing member 22 does not apply a supporting force to the pushing member 131 any more, the pushing member 131 moves away from the punch 12 under the elastic force of the elastic member 133, so that the pushing member 22 only needs to apply a supporting force to the pushing member 131, the supporting force moves close to the punch 12, the function of the pushing member 22 is simplified, and the structure of the pushing assembly 13 has the characteristics of simplicity and miniaturization.

In one embodiment, the elastic member 133 may be a spring. Obviously, the elastic member 133 may be a rubber member or other elastic member.

Referring to fig. 6 and 7, in some embodiments, the pusher assembly 13 further includes a carrier 134. The carrier 134 is connected to the material pushing seat 132 and faces the lower mold 20, a material pushing slot 1341 is formed on one side of the carrier 134 facing the material pushing seat 132, the material pushing part 1312 is slidably disposed in the material pushing slot 1341, and the carrier 134 and the material pushing seat 132 cooperate to position the material pushing part 1312.

The material pushing seat 132 is provided with a body slot 1321 and a mounting slot 1322 communicated with the body slot 1321, the material pushing body 1311 is movably arranged in the body slot 1321, the elastic member 133 is elastically arranged in the mounting slot 1322, one end of the elastic member 133 is stopped in the mounting slot 1322, and the other end of the elastic member 133 is connected with the material pushing body 1311. In this way, by providing the carrier 134, the carrier 134 can carry the pushing element 131 and position the pushing element 1312, so that the pushing element 1312 pushes away the product 300 on the punch 12 along a correct path, and it is ensured that the pushing element 131 can accurately push away the product 300 on the punch 12. By forming the body slot 1321 and the mounting slot 1322, the pushing body 1311 and the elastic member 133 are disposed in the pushing seat 132, which is beneficial to further miniaturizing the structure of the pushing assembly 13 and reducing the volume occupied by the pushing assembly 13 on the stamping die 100.

In one embodiment, the supporting member 134 further defines an avoiding hole 1342, and the pushing member 22 can pass through the avoiding hole 1342 to simultaneously abut against the four pushing members 131. Thus, by forming the avoiding hole 1342 on the bearing member 134, one pushing member 22 can simultaneously abut against four pushing members 131, which is beneficial to simplifying the structure of the pushing member 22 and reducing the volume occupied by the pushing member 22 on the lower mold 20.

Referring to fig. 6 and 7, in some embodiments, the material pushing seat 132 further defines a punching slot 1323, the punching slot 1323 is located between the mounting slot 1322 and the body slot 1321 and is respectively communicated with the mounting slot 1322 and the body slot 1321, the mounting slot 1322 is communicated with the body slot 1321 through the punching slot 1323, the punch 12 passes through the punching slot 1323 to be connected with the upper die plate 11, and the material pushing portion 1312 extends toward the punching slot 1323. Therefore, the punching grooves 1323 are formed in the material pushing seat 132, so that the punches 12 can be intensively arranged on the material pushing seat 132, the material pushing assembly 13 and the punches 12 are arranged in a modularized manner, the material pushing assembly 13 and the punches 12 can be easily arranged on the upper die plate 11, the installation and disassembly processes are simple, and the replacement of different material pushing assemblies 13 and different punches 12 is facilitated, so that the application range of the punching die 100 is widened.

In some embodiments, pusher assembly 13 further includes a closure 135. The blocking member 135 is disposed in the mounting groove 1322 and away from the body groove 1321, and the blocking member 135 abuts against one end of the elastic member 133 to stop the elastic member 133. The punch 12 is provided with a guide groove 121 respectively communicating with the body groove 1321 and the mounting groove 1322, the other end of the elastic member 133 passes through the guide groove 121 and extends to the body groove 1321 to be connected with the material pushing body 1311, and the guide groove 121 is used for guiding the elastic direction of the elastic member 133. Thus, by providing the blocking piece 135, when the pushing assembly 13 and the punch 12 are assembled, the other end of the elastic piece 133 can firstly pass through the mounting groove 1322 and the guide groove 121 and extend to the body groove 1321 to be connected with the pushing body 1311, and then the blocking piece 135 is used for stopping one end of the elastic piece 133, so that the mounting process of the pushing assembly 13 is simplified, the elastic piece 133 can be easily arranged in the pushing seat 132, and the mounting efficiency of the pushing assembly 13 is improved. The plugging member 135 may be an object having an external thread, and accordingly, one end of the mounting groove 1322 is provided with an internal thread adapted to the external thread. Therefore, the plugging piece 135 can be arranged in the installation groove 1322 by rotating the plugging piece 135, and the elastic force of the elastic piece 133 can be adjusted by adjusting the length of the plugging piece 135 screwed into the installation groove 1322, which is beneficial to improving the application range of the pushing assembly 13. Obviously, the blocking member 135 may also stop the elastic member 133 in other manners, for example, welding the blocking member 135 in the installation groove 1322 or at the notch of the installation groove 1322; as another example, the block piece 135 is disposed in the mounting slot 1322 by interference.

Referring to fig. 6 and 7, in some embodiments, the pusher assembly 13 further includes a first guide member 136. The first guiding member 136 is movably disposed in the guiding slot 121 and the body slot 1321, one end of the first guiding member 136 is connected to the pushing body 1311, the other end of the first guiding member 136 is connected to the other end of the elastic member 133, and the other end of the elastic member 133 is connected to the pushing body 1311 through the first guiding member 136. So, through setting up first guide 136 to make first guide 136 be connected with material pushing body 1311 and elastic component 133 respectively, be favorable to shortening the length of elastic component 133, make the length of elastic component 133 can satisfy the requirement of releasing effective elasticity on the one hand, on the other hand satisfies the requirement that is difficult for taking place buckling deformation, guarantee elastic component 133's stable use, be favorable to improving the life who pushes away material subassembly 13.

In one embodiment, referring to fig. 8, the guide groove 121 may be a stepped hole, and the first guide 136 may have a T-shaped structure. So, through setting up guide way 121 to the shoulder hole to and set up first guide 136 to T type structure, make guide way 121 can carry on spacingly to first guide 136, thereby make first guide 136 carry on spacingly to elastic component 133, excessively extend and reduce elastic component 133's elasticity when avoiding elastic component 133 to release elasticity, guarantee elastic component 133's stable use, be favorable to improving the life who pushes away material subassembly 13.

Referring to fig. 8, in some embodiments, along a mold closing or opening direction of the upper mold 10 and the lower mold 20, the material pushing body 1311 is provided with a material pushing surface 1311a away from the punch 12, and a first material pushing inclined surface 1311b and a second material pushing inclined surface 1311c located at two ends of the material pushing surface 1311a, the first material pushing inclined surface 1311b and the second material pushing inclined surface 1311c are both connected to the material pushing surface 1311a, and the first material pushing inclined surface 1311b is located above the second material pushing inclined surface 1311c.

Referring to fig. 4, the pushing member 22 includes pushing bodies 221 and pushing portions 222, the number of the pushing portions 222 is equal to that of the pushing members 131, the pushing bodies 221 are disposed on the die holder 21 and adjacent to the molding cavity 211, the pushing portions 222 are disposed on the pushing bodies 221 and face the molding cavity 211, and the pushing portions 222 are used for pushing the pushing surface 1311a, the first pushing inclined surface 1311b, and the second pushing inclined surface 1311c. During the process of closing the upper mold 10 and the lower mold 20, the abutting portion 222 abuts against the first material pushing inclined surface 1311b to move the material pushing body 1311 away from the punch 12. During the mold opening of the upper mold 10 and the lower mold 20, the pushing part 222 pushes the pushing surface 1311a to move the pushing material body 1311 closer to the punch 12. Thus, by providing the material pushing surface 1311a, the first material pushing inclined surface 1311b, and the second material pushing inclined surface 1311c on the material pushing body 1311, in the process of closing the upper die 10 and the lower die 20, the abutting piece 22 is matched with the first material pushing inclined surface 1311b and the second material pushing inclined surface 1311c of the material pushing body 1311 to avoid the material pushing body 1311, so that the material pushing body 1311 drives the material pushing portion 1312 to move away from the punch 12 under the elastic force of the elastic piece 133, and interference between the material pushing portion 1312 and the action of the punch 12 for punching the material 200 is avoided. During the mold opening process of the upper mold 10 and the lower mold 20, the pushing component 22 pushes the pushing surface 1311a of the pushing body 1311, so that the pushing body 1311 drives the pushing part 1312 to move close to the punch 12, thereby pushing off the product 300 on the punch 12.

In the embodiment of the present application, a side of the punch 12 facing the lower die 20 includes a stamping surface 122, and the stamping surface 122 is used for stamping the material 200. The pusher 1312 being proximate to the punch 12 may be understood as the pusher 1312 moving below the punch face 122 to push off the product 300 on the punch 12. The pushing part 1312 is far from the punch 12, which means that the pushing part 1312 is far from the lower side of the punch surface 122, so as to avoid interference between the pushing part 1312 and the action of the punch surface 122 to punch the material 200, where the pushing part 1312 does not necessarily have to be far from the lower side of the punch 12. In this way, the volume of the pusher assembly 13 can be further reduced.

Referring to fig. 4 and 8, in some embodiments, along a mold closing or opening direction of the upper mold 10 and the lower mold 20, the abutting portion 222 is provided with an abutting surface 2221 departing from the abutting body 221, and a first abutting inclined surface 2222 and a second abutting inclined surface 2223 located at two ends of the abutting surface 2221, the first abutting inclined surface 2222 and the second abutting inclined surface 2223 are both connected to the abutting surface 2221, the first abutting inclined surface 2222 is located below the second abutting inclined surface 2223, the first abutting inclined surface 2222 is adapted to the first pushing inclined surface 1311b, and the second abutting inclined surface 2223 is adapted to the second pushing inclined surface 1311c. In this way, by providing the pushing surface 2221, the first pushing inclined surface 2222, and the second pushing inclined surface 2223 on the pushing portion 222, the pushing portion 222 can push the pushing member 131 to move close to the punch 12 on the one hand, and can avoid the pushing member 131 on the other hand, so that the pushing member 131 can push materials at fixed time and fixed point, which is beneficial to improving the production efficiency.

In the process of closing an upper die 10 and a lower die 20, first, the first pushing inclined surface 2222 abuts against the first pushing inclined surface 1311b, so that the pushing body 1311 drives the pushing part 1312 to move close to the punch 12 until the pushing surface 2221 contacts with the pushing surface 1311 a; then, the pushing surface 2221 contacts with the pushing surface 1311a until the second pushing inclined surface 2223 contacts with the second pushing inclined surface 1311c, and in the process that the pushing surface 2221 contacts with the pushing surface 1311a, the punch 12 does not contact with the material 200, so that the punch 12 does not punch the material 200 to form the product 300; next, the second pushing inclined surface 2223 abuts against the second pushing inclined surface 1311c, so that the pushing body 1311 drives the pushing portion 1312 to move away from the punch 12 under the elastic force of the elastic member 133, so that the pushing portion 1312 carries out position avoidance on the punch 12, and the punch 12 is convenient to punch and form the material 200.

In the process of opening the upper die 10 and the lower die 20, firstly, the second pushing inclined surface 2223 abuts against the second pushing inclined surface 1311c, so that the pushing body 1311 drives the pushing part 1312 to move close to the punch 12 until the pushing surface 2221 contacts with the pushing surface 1311 a; then, the pushing surface 2221 contacts with the pushing surface 1311a until the first pushing inclined surface 2222 contacts with the first pushing inclined surface 1311b, and the pushing part 1312 moves to the lower side of the punch 12 and pushes away the product 300 on the punch 12; then, the first pushing inclined surface 2222 abuts against the first pushing inclined surface 1311b, so that the pushing body 1311 drives the pushing part 1312 to move away from the punch 12 under the elastic force of the elastic member 133, and the pushing member 131 is reset.

Referring to fig. 2, in some embodiments, the upper mold 10 further includes at least one stopper 14. At least one stopper 14 is attached to a side of the upper mold plate 11 facing the lower mold 20, and the at least one stopper 14 is used to restrain the upper mold 10 during the clamping of the upper mold 10 and the lower mold 20. Thus, by arranging the at least one stop piece 14, the die closing stroke of the upper die 10 and the lower die 20 is limited, the phenomenon that the upper die 10 extrudes the material 200 due to excessive movement is avoided, the formed product 300 is poor in size inaccuracy and the like, and the yield of the product 300 is guaranteed. Wherein the number of stops 14 is four. Obviously, the number of stops 14 can also be greater or smaller, for example two, six, etc.

Referring to fig. 2, in some embodiments, the upper mold 10 further includes at least one second guide 15. At least one second guide 15 is attached to the side of the upper die plate 11 facing the lower die 20, the second guide 15 protruding from the stopper 14 with respect to the upper die plate 11. The lower mold 20 further includes guide cylinders 24 equal in number to the second guide members 15, the guide cylinders 24 being provided on the lower mold plate 23 and being provided in one-to-one correspondence with the second guide members 15, the second guide members 15 being fittable through the guide cylinders 24. In this manner, the second guide 15 and the guide cylinder 24 are provided to facilitate guiding the upper mold 10 during the process of clamping the upper mold 10 and the lower mold 20. The second guide 15 is provided to protrude from the stopper 14 with respect to the upper mold plate 11, and is guided and stopped during the process of closing the upper mold 10 and the lower mold 20. The number of the guide cylinders 24 of the second guide 15 is four. Obviously, the number of the second guide member 15 and the guide cylinder 24 may be more or less, for example, two, six, etc.

Some embodiments provide a stamping die 100 that performs substantially as follows: first, the upper mold 10 and the lower mold 20 are opened, that is, as shown in fig. 2. The material 200 is then placed in the molding cavity 211 of the lower mold 20. Next, the upper mold 10 and the lower mold 20 are closed to the state shown in fig. 9, in the closing process, the first pushing inclined surface 2222 of the pushing member 22 is matched with the first pushing inclined surface 1311b of the pushing body 1311, so that the pushing body 1311 drives the pushing part 1312 to move close to the punch 12, however, in the closing process, the punch 12 does not contact the material 200, and therefore, the pushing part 1312 does not interfere with the punch 12. Then, the upper mold 10 and the lower mold 20 are continuously closed to the state shown in fig. 8, in the process of continuously closing the molds, the second pushing inclined surface 2223 of the pushing member 22 is matched with the second pushing inclined surface 1311c of the pushing body 1311, so that the pushing body 1311 drives the pushing part 1312 to move away from the punch 12 under the elastic force of the elastic member 133, and in the process of continuously closing the molds, the punch 12 contacts the material 200 and performs punch forming on the material 200. Next, the upper die 10 and the lower die 20 are opened to the state shown in fig. 9, in the process of opening the die, the second pushing inclined surface 2223 of the pushing member 22 is adapted to the second pushing inclined surface 1311c of the pushing body 1311, so that the pushing body 1311 drives the pushing portion 1312 to move close to the punch 12, and push away the product 300 clasped on the punch 12. Then, the upper mold 10 and the lower mold 20 are opened to the state shown in fig. 2, and in the process of opening the mold, the first pushing inclined surface 2222 of the pushing member 22 is matched with the first pushing inclined surface 1311b of the pushing member 131, so that the pushing body 1311 drives the pushing portion 1312 to move away from the punch 12 under the elastic force of the elastic member 133, and the pushing member 131 is reset. The above steps are repeated in a circulating way to punch and form the material 200 and push away the product 300 held on the punch 12 at regular time and fixed point.

According to the stamping die 100 provided by the embodiment of the application, the pushing component 13 and the abutting component 22 of the stamping die 100 are simple in structure, the pushing component 13 and the punch 12 are arranged in a modularized manner, the pushing component 13 can be easily arranged on the upper die plate 11, the pushing component 13 and the punch 12 can be conveniently replaced, and the application range of the stamping die 100 is enlarged. The pushing assembly 13 and the pushing member 22 occupy a small space on the stamping die 100, and are suitable for small-sized punches. In the processes of die assembly and die sinking, the material pushing part 131 and the pushing part 22 are matched with each other through the inclined surfaces to avoid the punch 12 and push away the product 300 on the punch 12 at regular time and fixed point, so that the effect of accurately pushing material at regular time and fixed point is realized, and the production efficiency is improved. The upper die 10 can also be guided by providing the second guide 15 and the guide cylinder 24. By providing the stopper 14, the movement stroke of the upper die 10 can be limited.

The embodiment of the present application also provides a punching machine (not shown), which includes the punching mold 100 as described above. It will be appreciated that the press may further include a moving mechanism (not shown) for moving the upper mold 10 toward or away from the lower mold 20, such as a linear die set, a robotic arm, etc.

It will be evident to those skilled in the art that the application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application and not for limiting, and although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application.

Claims (10)

1. A stamping die comprises an upper die and a lower die which are oppositely arranged, and is characterized in that,

the upper die comprises an upper die plate, a punch and a material pushing assembly, the punch and the material pushing assembly are connected to the upper die plate and are positioned on one side of the upper die plate facing the lower die, the material pushing assembly comprises a material pushing piece, and the material pushing piece can move relative to the punch to be close to or far away from the punch;

the lower die comprises a die holder and a pushing piece for pushing the material pushing piece in a pushing mode, the die holder is provided with a forming cavity for placing materials, and the pushing piece is arranged on the die holder and is adjacent to the forming cavity;

the punch is used for being matched with the forming cavity after the upper die and the lower die are closed so as to punch and form the material; the pushing piece is used for pushing the pushing piece to move close to the punch in the die opening process of the upper die and the lower die so as to push away the materials formed by punching.

2. The stamping die of claim 1,

the material pushing assembly further comprises a material pushing seat and an elastic piece, and the material pushing seat is connected to one side, facing the lower die, of the upper die plate;

the pushing part comprises a pushing body and a pushing part, the pushing body is movably arranged on the pushing seat and is arranged at an interval with the punch, the elastic part is elastically arranged between the pushing seat and the pushing body, the pushing part is connected with the pushing body and extends towards the punch, the pushing part is lower than the punch, the pushing body can move relative to the punch to be close to or far away from the punch, and the pushing part moves along with the pushing body;

in the die opening process of the upper die and the lower die, the pushing part pushes the pushing body to move close to the punch, so that the pushing body drives the pushing part to move to the position below the punch.

3. The stamping die of claim 2,

the pushing assembly further comprises a bearing piece, the bearing piece is connected with the pushing seat and faces the lower die, a pushing groove is formed in one side, facing the pushing seat, of the bearing piece, the pushing part is slidably arranged in the pushing groove, and the bearing piece is matched with the pushing seat to position the pushing part;

the material pushing seat is provided with a body groove and a mounting groove communicated with the body groove, the material pushing body is movably arranged in the body groove, the elastic piece is elastically arranged in the mounting groove, one end of the elastic piece is stopped in the mounting groove, and the other end of the elastic piece is connected with the material pushing body.

4. The stamping die of claim 3,

the material pushing seat is further provided with a punching groove, the punching groove is located between the mounting groove and the body groove and is respectively communicated with the mounting groove and the body groove, the mounting groove is communicated with the body groove through the punching groove, the punch penetrates through the punching groove and is connected with the upper die plate, and the material pushing portion extends towards the punching groove.

5. The stamping die of claim 4,

the pushing assembly further comprises a blocking piece, the blocking piece is arranged in the mounting groove and is far away from the body groove, and the blocking piece is abutted against one end of the elastic piece so as to stop the elastic piece;

the punch is provided with a guide groove which is respectively communicated with the body groove and the mounting groove, the other end of the elastic piece penetrates through the guide groove and extends to the body groove to be connected with the material pushing body, and the guide groove is used for guiding the elastic direction of the elastic piece.

6. The stamping die of claim 5,

the material pushing assembly further comprises a first guide piece, the first guide piece is movably arranged in the guide groove and the body groove, one end of the first guide piece is connected with the material pushing body, the other end of the first guide piece is connected with the other end of the elastic piece, and the other end of the elastic piece passes through the first guide piece and is connected with the material pushing body.

7. The stamping die of claim 2,

along the die assembly or die sinking direction of the upper die and the lower die, the material pushing body is provided with a material pushing surface deviating from the punch head, and a first material pushing inclined surface and a second material pushing inclined surface which are positioned at two ends of the material pushing surface, the first material pushing inclined surface and the second material pushing inclined surface are both connected with the material pushing surface, and the first material pushing inclined surface is positioned above the second material pushing inclined surface;

the pushing part comprises a pushing body and a pushing part, the pushing body is arranged on the die holder and is adjacent to the forming cavity, the pushing part is arranged on the pushing body and faces the forming cavity, and the pushing part is used for pushing the pushing inclined plane, the first pushing inclined plane and the second pushing inclined plane;

in the die opening process of the upper die and the lower die, the pushing part pushes the material pushing surface to enable the material pushing body to move close to the punch.

8. The stamping die of claim 7,

along the die assembling or die disassembling direction of the upper die and the lower die, the abutting part is provided with an abutting surface departing from the abutting body, and a first abutting inclined surface and a second abutting inclined surface which are positioned at two ends of the abutting surface, the first abutting inclined surface and the second abutting inclined surface are both connected with the abutting surface, the first abutting inclined surface is positioned below the second abutting inclined surface, the first abutting inclined surface is matched with the first pushing inclined surface, and the second abutting inclined surface is matched with the second pushing inclined surface.

9. The stamping die of claim 1,

the upper die further comprises at least one stop piece, the stop piece is connected to one side, facing the lower die, of the upper die plate, and the stop piece is used for limiting the upper die in the die assembly process of the upper die and the lower die.

10. A punching machine comprising a punching die according to any one of claims 1 to 9.

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