CN219169280U - Stamping die - Google Patents

Abstract

The utility model provides a stamping die which comprises an upper die and a lower die, wherein the upper die is provided with a punch, and the stamping die further comprises a stop component, a bearing component and a bending component. The stop assembly comprises a pair of ejector rods arranged on the lower die at intervals, the bearing assembly is arranged on the lower die and located between the pair of ejector rods to bear a workpiece, the opposite stop assembly can move up and down, the bending assembly comprises two rotating modules and two bending pieces, one end of each rotating module is rotationally connected with the bearing assembly, the other end of each rotating module rotates to prop against one ejector rod, the part of each bending piece penetrates through the rotating module, and the width of the punch towards the end part of the lower die is smaller than the interval between the two bending pieces. Therefore, the rotating module in the stamping die is matched with the corresponding ejector rod to form a rotating power arm, the end part of the workpiece is bent in a rotating mode through the two bending pieces, the damage to the stamping die in the process of bending the workpiece can be reduced, and accordingly production cost is reduced.

Description

Stamping die

Technical Field

The utility model relates to the technical field of stamping, in particular to a stamping die.

Background

When bending a workpiece, a punch is generally adopted to directly punch the workpiece into a forming groove of a special jig, so as to form a formed workpiece, for example: the U-shaped workpiece is easy to damage the forming groove in the special jig by adopting a direct stamping mode between the workpiece and the forming groove due to errors of the sizes of different workpieces, so that the service life of the special jig is shortened, and the production cost is high.

Disclosure of Invention

In view of the above, it is necessary to provide a stamping die to reduce production costs.

The embodiment of the utility model provides a stamping die, which comprises an upper die and a lower die, wherein the upper die is provided with a punch, and the stamping die further comprises:

the stop assembly comprises a pair of ejector rods which are arranged on the lower die at intervals;

the bearing assembly is arranged on the lower die and positioned between the pair of ejector rods so as to be used for bearing a workpiece, and can move up and down relative to the stop assembly;

the bending assembly comprises two rotating modules and two bending pieces, the two rotating modules are oppositely arranged between a pair of ejector rods, one end of each rotating module is rotationally connected with the bearing assembly, the other end of each rotating module is rotationally abutted against one end of a corresponding ejector rod, each bending piece is connected with one end of a corresponding rotating module, and the width of the punch towards the end part of the lower die is smaller than the interval between the two bending pieces; wherein,,

the punch presses down the workpiece to drive the bearing assembly to move when the die is closed, one end of the rotating module moves downwards along with the bearing assembly, the other end of the rotating module rotates under the supporting of the ejector rod, so that the rotating module drives the corresponding bending piece to rotate, and the two bending pieces bend the workpiece.

When the stamping die is assembled, the workpiece can be located on the two bending pieces, and can also be located on the bearing assembly, the punch presses the workpiece to drive the workpiece and the bearing assembly at the position to move downwards, one end of the rotating module moves downwards along with the bearing assembly, the other end of the rotating module rotates under the supporting of the ejector rod, the workpiece moves downwards and the rotating module rotates, and the two bending pieces form bending force on the end part of the workpiece, so that the workpiece is bent. Therefore, the rotating module in the stamping die is matched with the corresponding ejector rod to form a rotating power arm, the end part of the workpiece is bent in a rotating mode through the two bending pieces, the damage to the stamping die in the workpiece bending process can be reduced, and the stamping die is suitable for batch workpieces with size differences, so that the production cost is reduced.

In some embodiments, the load bearing assembly comprises:

a movable plate;

the bearing seat is arranged on the movable plate and is rotationally connected with the two rotating modules;

the first elastic piece and the bearing seat are respectively positioned on two opposite sides of the movable plate, one end of the first elastic piece is connected with the lower die, and the other end of the first elastic piece abuts against the movable plate.

In some embodiments, the carrier comprises:

the support piece is arranged on the movable plate and provided with a support groove, the support groove penetrates through two opposite side surfaces of the support piece from one ejector rod to the other ejector rod, and the rotating module is rotationally connected with the side wall of the support groove;

the bearing piece is arranged in the supporting groove and positioned between the two bending pieces and used for bearing the workpiece.

In some embodiments, the carrier comprises:

the bearing body is arranged in the supporting groove, and the top end surface of the bearing body is used for bearing the workpiece;

the limiting blocks are arranged on the top end face of the bearing body, are circumferentially distributed to enclose to form a limiting space, and are used for limiting the workpiece.

In some embodiments, the carrier further comprises:

the two guide pieces are connected with the support piece and arranged at two openings of the support groove, each guide piece comprises a guide rod and a second elastic piece, the top end of each guide rod is used for bearing the workpiece, and two ends of each second elastic piece are respectively connected with the support piece and the bottom end of each guide rod; wherein,,

the two bending pieces are positioned between the two guide rods.

In some embodiments, a positioning groove is formed at the top end of each guide rod, and openings of the two positioning grooves are arranged oppositely and are used for respectively accommodating two ends of the workpiece.

In some embodiments, the stamping die further comprises:

the baffle plates are arranged on the lower die and are arranged at intervals along the periphery of the movable plate so as to limit the movable plate.

In some embodiments, the support groove includes a first side wall and a second side wall disposed opposite each other, each of the rotation modules includes:

a first rotating member;

the second rotating piece is arranged at intervals with the first rotating piece, and the second rotating piece and the first rotating piece are respectively rotated and abutted against a corresponding one of the ejector rods;

the connecting piece is arranged between the first rotating piece and the second rotating piece, and two ends of the connecting piece are respectively connected with one end of the first rotating piece and one end of the second rotating piece;

the two ends of the first rotating shaft are respectively connected to the first side wall and the other end of the first rotating piece in a rotating way;

the two ends of the second rotating shaft are respectively connected with the second side wall and the other end of the second rotating piece in a rotating way; wherein,,

each bending piece is connected between one end of the first rotating piece, which is far away from the connecting piece, and one end of the second rotating piece, which is far away from the connecting piece.

In some embodiments, the bending assembly further includes a pair of reset modules, the pair of reset modules are symmetrically disposed on two sides of the rotating module, and each reset module includes:

the two ends of the fixed shaft are respectively connected with one end of the first rotating piece far away from the bending piece and one end of the second rotating piece far away from the bending piece;

and one end of the third elastic piece is connected with the bottom end of the ejector rod, and the other end of the third elastic piece is connected with the fixed shaft.

In some embodiments, the bending assembly further includes a pair of reset modules, the pair of reset modules are symmetrically disposed on two sides of the rotating module, and each reset module includes:

the two ends of the fixed shaft are respectively connected with one end of the first rotating piece far away from the bending piece and one end of the second rotating piece far away from the bending piece;

the traction piece is connected with the bottom end of the ejector rod;

and one end of the linkage piece is connected with the fixed shaft, and the other end of the linkage piece penetrates through the traction piece and is connected with the movable plate.

Drawings

Fig. 1 is a schematic structural diagram of a stamping die according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of the workpiece in the press mold of fig. 1, taken along the direction ii-ii in fig. 1 when the die is closed.

Fig. 3 is a schematic structural view of a portion of the carrier and a portion of the bending assembly shown in fig. 2.

Fig. 4 is an exploded view of a portion of the carrier and a portion of the bending assembly of fig. 3.

Fig. 5 is a schematic structural view of a part of the carrying assembly and a part of the bending assembly in fig. 2.

Fig. 6 is a schematic structural diagram of the lower die, the bearing assembly and the bending assembly in another embodiment.

Description of the main reference signs

Stamping die 10

Upper die 11

Punch 11a

Lower die 12

Stop assembly 13

Ejector rod 131

Load bearing assembly 14

Movable plate 141

Bearing seat 142

Support 1421

Support groove 1421a

First side wall 1421b

Second sidewall 1421c

Bearing 1422

Bearing body 1422a

Stopper 1422b

Spacing space 1422c

Guide incline 1422d

Guide 1423

Guide bar 1423a

Second elastic member 1423b

Positioning groove 1423c

Locking member 1424

First elastic member 143

Bending assembly 15

Rotation module 151

First rotating member 1511

Second rotating member 1512

Connecting piece 1513

First rotation shaft 1514

Second rotation shaft 1515

Bending piece 152

Reset module 153

Fixed shaft 1531

Third elastic member 1532

Traction element 1533

Linkage 1534

Stop plate 16

Workpiece 20

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, an embodiment of the present utility model provides a stamping die 10, which includes an upper die 11 and a lower die 12, wherein the upper die 11 is provided with a punch 11a, the stamping die 10 further includes a stop assembly 13, a bearing assembly 14 and a bending assembly 15 for bending a workpiece, and the workpiece may be composed of a composite material.

Referring to fig. 1 and 2, in some embodiments, the stop assembly 13 includes a pair of ejector pins 131 spaced from each other and disposed on the lower die 12, the carrier assembly 14 is disposed on the lower die 12 and between the pair of ejector pins 131, so as to be used for carrying a workpiece, the carrier assembly 14 can move up and down relative to the stop assembly 13, the bending assembly 15 includes two rotating modules 151 and two bending members 152, the two rotating modules 151 are disposed between the pair of ejector pins 131 relatively, one end of each rotating module 151 is rotatably connected with the carrier assembly 14, the other end of each rotating module 151 is rotatably abutted against one end of a corresponding ejector pin 131, each bending member 152 is connected with one end of a corresponding rotating module 151, the width of the punch 11a towards the end of the lower die 12 is smaller than the interval between the two bending members 152, so that the workpiece 20 is bent under the action of the punch 11a and the two bending members 152, the punch 11a presses the workpiece 20 under the action of the die to drive the carrier assembly 14 to move, one end of the rotating module 151 moves down along with the carrier assembly 14, and the other end of the rotating module 151 rotates under the abutment of the ejector pins 131 to rotate the corresponding bending members 152, so that the corresponding bending members 152 rotate the two bending members 152.

When the stamping die 10 is assembled, the workpiece 20 may be located on the two bending members 152, or may be located on the carrying assembly 14, the punch 11a presses the workpiece to drive the workpiece 20 and the carrying assembly 14 where the workpiece is located to move downward, one end of the rotating module 151 moves downward along with the carrying assembly 14, the other end of the rotating module 151 rotates under the support of the ejector rod 131, and the two bending members 152 form bending forces on the end of the workpiece 20 during the downward movement of the workpiece 20 and the rotation of the rotating module 151, so as to realize bending of the workpiece 20. Therefore, the rotating module 151 in the stamping die 10 cooperates with the corresponding ejector rod 131 to form a rotating power arm, and the two bending members 152 bend the end of the workpiece 20 in a rotating manner, so that damage to the stamping die 10 in the process of bending the workpiece 20 can be reduced, and the stamping die is suitable for batch workpieces 20 with size differences, thereby reducing production cost.

Preferably, the difference between the width of the end of the punch 11a facing the lower die 12 and the distance between the two bending members 152 is twice the thickness of the workpiece 20, so that the bending members 152 only apply force to bend the workpiece 20 during bending the workpiece 20, but do not press the workpiece 20, thereby improving the smoothness of the surface of the workpiece 20 after bending.

It will be appreciated that in other embodiments, the particular shape of the punch 11a toward the end of the lower die 12 may be set depending on the desired shape of the shaped workpiece.

In some embodiments, the number of the punch 11a, the stop assembly 13, the bearing assembly 14 and the bending assembly 15 may be plural, so that bending processing on a plurality of workpieces 20 can be simultaneously realized. For example, referring to fig. 1, the number of the punches 11a, the stop assemblies 13, the carrying assemblies 14 and the bending assemblies 15 is two, the two punches 11a are symmetrically disposed on the upper die 11, and the two stop assemblies 13, the two carrying assemblies 14 and the two bending assemblies 15 are symmetrically disposed, so that bending processing of the two workpieces 20 can be achieved.

Referring to fig. 2, in some embodiments, the carrier assembly 14 includes a movable plate 141, a carrier seat 142, and a first elastic member 143. The bearing seat 142 is disposed on the movable plate 141 and is rotationally connected with the two rotating modules 151, the first elastic member 143 and the bearing seat 142 are respectively disposed on two opposite sides of the movable plate 141, one end of the first elastic member 143 is connected with the lower die 12, and the other end of the first elastic member 143 abuts against the movable plate 141. The first elastic member 143 may be a spring or a hydraulic cylinder, for example, and in this embodiment, the first elastic member 143 is provided as a spring.

During operation, when the movable plate 141 receives the downward pressure of the bearing seat 142, the movable plate 141 moves downward and compresses the first elastic member 143, the bearing seat 142 drives one end of the rotating module 151 to move downward, so that the other end of the rotating module 151 rotates to abut against the ejector rod 131, and the bending member 152 moves downward from top to bottom and rotates under the driving of the corresponding rotating module 151, so as to bend the workpiece 20. After the punch 11a is reset after the punch is formed, the first elastic piece 143 is released by the compressed elastic force to drive the movable plate 141 to reset upwards, so that the bearing seat 142 and the rotating module 151 also follow the reset, and the bent workpiece 20 is exposed, so that the material is conveniently taken out.

Referring to fig. 3 and 4, in some embodiments, the carrier 142 includes a supporting member 1421 and a carrier 1422. The supporting member 1421 is disposed on the movable plate 141 and has a supporting groove 1421a, the supporting groove 1421a penetrates through two opposite sides of the supporting member 1421 from one of the ejector pins 131 to the other ejector pin 131, the rotating module 151 is rotationally connected with a side wall of the supporting groove 1421a, and the bearing member 1422 is disposed in the supporting groove 1421a and between the two bending members 152, for bearing a workpiece.

In this embodiment, the bearing seat 142 further includes a locking member 1424, and one end of the locking member 1424 is screwed to the bearing member 1422 and the movable plate 141, so as to realize synchronous up-and-down movement of the bearing member 1422 and the movable plate 141. Illustratively, the locking member 1424 may be a plurality of bolts.

In some embodiments, the carrier 1422 includes a carrier body 1422a and a plurality of stoppers 1422b. The bearing body 1422a is disposed in the supporting groove 1421a, and a top surface of the bearing body 1422a is used for bearing a workpiece, the plurality of limiting blocks 1422b are disposed on the top surface of the bearing body 1422a, and the plurality of limiting blocks 1422b are circumferentially distributed to enclose and form a limiting space 1422c, so as to limit the workpiece, and prevent the workpiece 20 from being separated from the bearing member 1422 during the up-and-down movement of the bearing seat 142.

In the present embodiment, the stopper 1422b has a guiding inclined surface 1422d for guiding the workpiece 20 to the top surface of the supporting body 1422 a.

Referring to fig. 5, in some embodiments, the carrier 142 further includes two guides 1423. The two guiding elements 1423 are connected with the supporting element 1421 and are arranged at two openings of the supporting groove 1421a, each guiding element 1423 comprises a guiding rod 1423a and a second elastic element 1423b, the top end of the guiding rod 1423a is used for bearing a workpiece, two ends of the second elastic element 1423b are respectively connected with the supporting element 1421 and the bottom end of the guiding rod 1423a, and the two bending elements 152 are positioned between the two guiding rods 1423 a. Illustratively, the second resilient member 1423b may be a spring.

During operation, the two ends of the workpiece 20 may be placed at the top ends of the two guide rods 1423a, then the punch 11a of the upper die 11 is driven to press the middle part of the workpiece 20 downward, so that the two ends of the workpiece 20 press the two guide rods 1423a downward, in this process, the guide rods 1423a compress the corresponding second elastic members 1423b downward, then the punch 11a continues to press the middle part of the workpiece 20 downward, so that the two ends of the workpiece 20 press the two bending members 152 and are bent by the two bending members 152, the two ends of the workpiece 20 are bent and then separate from the top ends of the two guide rods 1423a, finally, the punch 11a continues to press the middle part of the workpiece 20 downward, so that the workpiece 20 is pressed to the top end surface of the bearing body 1422a, in this process, the compressed elastic force of the second elastic members 1423b is released, and the corresponding guide rods 1423a are driven to reset upward.

Accordingly, the two guide rods 1423a cooperate with the corresponding second elastic members 1423b to guide the workpiece during the downward movement.

In some embodiments, a positioning groove 1423c is formed at the top end of each guiding rod 1423a, and the openings of the two positioning grooves 1423c are opposite to each other, so as to respectively accommodate two ends of the workpiece 20, prevent the workpiece 20 from separating from the guiding rod 1423a when moving downward, and improve the stability of the movement of the workpiece 20.

In this embodiment, the positioning groove 1423c is an L-shaped groove having two vertical surfaces. It is understood that in other embodiments, the positioning groove 1423c may be a groove having an inclined surface.

Referring to fig. 1, in some embodiments, the stamping die 10 further includes a plurality of stop plates 16. The plurality of stop plates 16 are all arranged on the lower die 12 and are arranged at intervals along the periphery of the movable plate 141 so as to limit the movable plate 141, prevent the movable plate 141 from shifting horizontally during up-and-down movement and improve the bending accuracy of the workpiece 20.

It will be appreciated that in other embodiments, a plurality of stop plates 16 may comprise a continuous enclosure.

Referring to fig. 3 and 4, in some embodiments, the supporting groove 1421a includes a first sidewall 1421b and a second sidewall 1421c disposed opposite to each other, and each rotation module 151 includes a first rotation member 1511, a second rotation member 1512, a connection member 1513, a first rotation shaft 1514, and a second rotation shaft 1515. The second rotating member 1512 and the first rotating member 1511 are disposed at intervals, the second rotating member 1512 and the first rotating member 1511 rotate respectively to abut against a corresponding one of the push rods 131, the connecting member 1513 is disposed between the first rotating member 1511 and the second rotating member 1512, two ends of the connecting member 1513 are respectively connected with one end of the first rotating member 1511 and one end of the second rotating member 1512, two ends of the first rotating shaft 1514 are respectively connected with the first side wall 1421b and the other end of the first rotating member 1511 in a rotating manner, two ends of the second rotating shaft 1515 are respectively connected with the second side wall 1421c and the other end of the second rotating member 1512 in a rotating manner, and each bending member 152 is connected between one end of the first rotating member 1511 away from the connecting member 1513 and one end of the second rotating member 1512 away from the connecting member 1513.

In this embodiment, the first sidewall 1421b and the second sidewall 1421c are parallel to each other, and the first rotating member 1511 and the second rotating member 1512 are each substantially L-shaped.

Referring to fig. 2, in order to achieve better resetting of the rotating module 151 and the bending member 152, the bending assembly 15 further includes a pair of resetting modules 153, the pair of resetting modules 153 are symmetrically disposed on two sides of the two rotating modules 151, and after the workpiece 20 is formed and opened, the rotating modules 151 and the bending member 152 are driven to reset by the resetting modules 153.

In some embodiments, each reset module 153 further includes a fixing shaft 1531 and a third elastic member 1532. Two ends of the fixed shaft 1531 are respectively connected with one end of the first rotating member 1511 away from the bending member 152 and one end of the second rotating member 1512 away from the bending member 152, one end of the third elastic member 1532 is connected with the bottom end of the ejector rod 131, and the other end of the third elastic member 1532 is connected with the fixed shaft 1531. Illustratively, the third resilient member 1532 may be a spring.

When the mold is closed, the third elastic member 1532 is stretched along with the downward movement of the rotating module 151, and after the workpiece 20 is molded and opened, the third elastic member 1532 contracts to drive the rotating module 151 and the corresponding bending member 152 to reset upwards through the fixing shaft 1531, and in addition, the stretching length of the third elastic member 1532 itself has an upper limit, so that the downward movement range of the rotating module 151 and the corresponding bending member 152 can be limited.

Referring to fig. 6, in some embodiments, each reset module 153 includes a fixed shaft 1531, a traction member 1533, and a linkage member 1534. The two ends of the fixed shaft 1531 are respectively connected with one end of the first rotating member 1511 far away from the bending member 152 and one end of the second rotating member 1512 far away from the bending member 152, the traction member 1533 is connected with the bottom end of the ejector rod 131, one end of the linkage member 1534 is connected with the fixed shaft 1531, and the other end of the linkage member 1534 passes through the traction member 1533 and is connected with the movable plate 141.

When the mold is closed, the movable plate 141 moves downward, the distance between one end of the linkage member 1534 and the traction member 1533 is reduced, so that the other end of the linkage member 1534 moves upward along with the rotation module 151, after the workpiece 20 is molded and opened, the movable plate 141 floats upward, the distance between one end of the linkage member 1534 and the traction member 1533 is increased, and the other end of the linkage member 1534 drives the rotation module 151 and the corresponding bending member 152 to reset upward through the fixing shaft 1531.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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-mentioned embodiments are merely for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. The utility model provides a stamping die, includes mould and lower mould, it is equipped with the drift to go up the mould, its characterized in that, stamping die still includes:

the stop assembly comprises a pair of ejector rods which are arranged on the lower die at intervals;

the bearing assembly is arranged on the lower die and positioned between the pair of ejector rods so as to be used for bearing a workpiece, and can move up and down relative to the stop assembly;

the bending assembly comprises two rotating modules and two bending pieces, the two rotating modules are oppositely arranged between a pair of ejector rods, one end of each rotating module is rotationally connected with the bearing assembly, the other end of each rotating module is rotationally abutted against one end of a corresponding ejector rod, each bending piece is connected with one end of a corresponding rotating module, and the width of the punch towards the end part of the lower die is smaller than the interval between the two bending pieces; wherein,,

the punch presses down the workpiece to drive the bearing assembly to move when the die is closed, one end of the rotating module moves downwards along with the bearing assembly, the other end of the rotating module rotates under the supporting of the ejector rod, so that the rotating module drives the corresponding bending piece to rotate, and the two bending pieces bend the workpiece.

2. The stamping die of claim 1, wherein the carrier assembly comprises:

a movable plate;

the bearing seat is arranged on the movable plate and is rotationally connected with the two rotating modules;

the first elastic piece and the bearing seat are respectively positioned on two opposite sides of the movable plate, one end of the first elastic piece is connected with the lower die, and the other end of the first elastic piece abuts against the movable plate.

3. The stamping die of claim 2, wherein the carrier comprises:

the support piece is arranged on the movable plate and provided with a support groove, the support groove penetrates through two opposite side surfaces of the support piece from one ejector rod to the other ejector rod, and the rotating module is rotationally connected with the side wall of the support groove;

the bearing piece is arranged in the supporting groove and positioned between the two bending pieces and used for bearing the workpiece.

4. A stamping die as in claim 3, wherein the carrier comprises:

the bearing body is arranged in the supporting groove, and the top end surface of the bearing body is used for bearing the workpiece;

the limiting blocks are arranged on the top end face of the bearing body, are circumferentially distributed to enclose to form a limiting space, and are used for limiting the workpiece.

5. A stamping die as in claim 3, wherein the carrier further comprises:

the two guide pieces are connected with the support piece and arranged at two openings of the support groove, each guide piece comprises a guide rod and a second elastic piece, the top end of each guide rod is used for bearing the workpiece, and two ends of each second elastic piece are respectively connected with the support piece and the bottom end of each guide rod; wherein,,

the two bending pieces are positioned between the two guide rods.

6. The stamping die of claim 5, wherein the stamping die comprises a plurality of stamping dies,

and the top end of each guide rod is provided with a positioning groove, and the openings of the two positioning grooves are oppositely arranged and are used for respectively accommodating the two ends of the workpiece.

7. The stamping die of claim 2, wherein the stamping die further comprises:

the baffle plates are arranged on the lower die and are arranged at intervals along the periphery of the movable plate so as to limit the movable plate.

8. A stamping die as recited in claim 3, wherein the support recess includes oppositely disposed first and second side walls, each of the rotation modules comprising:

a first rotating member;

the second rotating piece is arranged at intervals with the first rotating piece, and the second rotating piece and the first rotating piece are respectively rotated and abutted against a corresponding one of the ejector rods;

the connecting piece is arranged between the first rotating piece and the second rotating piece, and two ends of the connecting piece are respectively connected with one end of the first rotating piece and one end of the second rotating piece;

the two ends of the first rotating shaft are respectively connected to the first side wall and the other end of the first rotating piece in a rotating way;

the two ends of the second rotating shaft are respectively connected with the second side wall and the other end of the second rotating piece in a rotating way; wherein,,

each bending piece is connected between one end of the first rotating piece, which is far away from the connecting piece, and one end of the second rotating piece, which is far away from the connecting piece.

9. The stamping die of claim 8, wherein the bending assembly further comprises a pair of reset modules symmetrically disposed on either side of the two rotating modules, each reset module comprising:

the two ends of the fixed shaft are respectively connected with one end of the first rotating piece far away from the bending piece and one end of the second rotating piece far away from the bending piece;

and one end of the third elastic piece is connected with the bottom end of the ejector rod, and the other end of the third elastic piece is connected with the fixed shaft.

10. The stamping die of claim 8, wherein the bending assembly further comprises a pair of reset modules symmetrically disposed on either side of the two rotating modules, each reset module comprising:

the two ends of the fixed shaft are respectively connected with one end of the first rotating piece far away from the bending piece and one end of the second rotating piece far away from the bending piece;

the traction piece is connected with the bottom end of the ejector rod;

and one end of the linkage piece is connected with the fixed shaft, and the other end of the linkage piece penetrates through the traction piece and is connected with the movable plate.

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