CN210547461U

CN210547461U - Stamping die structure with reinforced lower die strength

Info

Publication number: CN210547461U
Application number: CN201921429711.5U
Authority: CN
Inventors: 杨建光; 段卫华
Original assignee: Kunshan Daquan Kaifan Precision Mould Co ltd
Current assignee: Kunshan Daquan Kaifan Precision Mould Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-19
Anticipated expiration: 2029-08-30

Abstract

The utility model provides a stamping die structure that lower mould intensity is strengthened aims at providing a simple structure, and it is easy to make, can show the mould structure of strengthening lower mould intensity when the product is cut edge. The automatic trimming device comprises an upper die and a lower die, wherein two independent material leaking holes are formed in the left and right sides of the lower die in a processing mode, a trimming waste slitting insert is arranged between the two material leaking holes, after the waste at the edge of a product is cut off by an upper die punch, the trimming waste gradually enters a lower die cutter die cavity, the trimming waste is contacted with the slitting insert under the continuous downward extrusion of the punch until the trimming waste is cut into two halves by the slitting insert, and then the two material leaking holes are discharged from the left and right sides of the lower die. The die has the advantages that the die does not have deformation during stamping production, the strength is very good, the die with the structure can be normally and stably produced, the maintenance times during die production are reduced, the production is convenient, the structure is simple, the die strength is mainly enhanced when the die is normally stamped, and the die is convenient to popularize.

Description

Stamping die structure with reinforced lower die strength

Technical Field

The utility model relates to the technical field of mold, specifically provide a stamping die structure.

Background

At present, the lower die needs to be completely hollowed out by using a wide stamping and trimming die for facilitating material leakage during stamping. The strength of the lower die is insufficient, and the die is prone to deformation at the trimming position, large in trimming burrs and prone to damage of trimming punches and trimming edges during mass production. In this case, the frequency of die maintenance is high, continuous and stable production cannot be realized, and the cost of stamping production is high.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, improve stamping efficiency, reduce mould maintenance frequency, this use is novel to provide a stamping die structure that lower mould intensity is strengthened, aims at providing a simple structure, makes easily, the mould structure of intensity reinforcing to mould non-deformable, production stability in succession, cost greatly reduced when this guarantees stamping production.

In order to achieve the above object, the utility model provides a stamping die structure that lower mould intensity is strengthened, including last mould and lower mould.

The upper die structure is the same as a common die structure and comprises an upper die base, an upper base plate, an upper clamping plate, a stripper plate and a punch.

The lower die comprises a lower die cutting edge plate, a shearing insert, a lower backing plate and a lower die base.

When the punch presses a product downwards, the punch enters a lower die cutting edge plate, and the punch enters a cutting edge cavity.

The lower die knife edge plate is connected onto the lower backing plate, and the lower backing plate is connected onto the lower die base.

Preferably, the lower die cutting plate, the lower backing plate and the lower die base are connected in a locking mode through screw pins.

The lower die cutting edge plate is provided with at least two material leaking holes. And a supporting part is arranged between the material leaking holes. The supporting part is connected with the lower die cutting plate, namely the supporting part is the lower die cutting plate which is not cut off when the material leakage hole is processed. The supporting part can play the effect of supporting the punching press product for lower mould intensity is showing and is strengthening.

Preferably, the support part comprises a support table and a connecting table. The height of the supporting platform is more than or equal to the lower punching depth of the punch, so that the product can be conveniently punched; the connecting table is positioned below the supporting table and connected with the lower die cutting board.

Preferably, the support table is the same as the product in shape.

Preferably, the lower die blade plate is provided with two material leaking holes.

The splitting insert is positioned in a knife edge cavity of the lower die knife edge plate and is connected with the lower die knife edge plate.

Preferably, the shearing insert is movably connected with the lower die blade plate.

Preferably, the shearing insert is in an I shape and is fixed through an I-shaped clamping groove in the lower die blade plate.

Preferably, the shearing insert is positioned above the connecting table and is tightly attached to the supporting table. The height of the shearing insert is lower than that of the support platform but higher than the pressing depth of the punch.

The shearing insert is provided with a cutting edge. The cutting blade may cut the scrap.

The working principle of the stamping die structure with the reinforced lower die strength is as follows:

first, the punch is moved downward, and the waste material pressing the edge of the product is moved downward. The scrap is then brought into contact with the cutting insert and, under the action of the cutting edge, the scrap is divided into a plurality of pieces. And finally, a plurality of waste materials are leaked from the leakage hole.

The beneficial effects of the utility model include: the material leaking hole of the lower die is changed from a big hole to a plurality of small holes, and the corresponding shearing inserts are added to cut off the waste materials, so that the strength of the lower die is obviously improved under the condition of ensuring the smooth leaking of the waste materials. The stamping die has the advantages of simple and practical structure, deformation prevention of the stamping production die, reduction of die maintenance frequency, improvement of production stability and reduction of production cost.

Drawings

Fig. 1 the structure of the present invention is schematically shown in fig. 1

Fig. 2 is a schematic structural diagram of the present invention 2

Fig. 3 the utility model discloses lower die edge of a knife plate structure plan view

Fig. 4 the utility model discloses a lower die edge of a knife plate structure oblique view

1-punch, 2-lower die cutting plate, 3-lower backing plate, 4-lower die holder, 5-product, 6-waste, 7-shearing insert, 8-supporting part, 9-supporting table and 10-connecting table.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 and fig. 2, the stamping die structure with reinforced lower die strength of the present invention includes an upper die and a lower die. The structure of the upper die part shown in fig. 1 is omitted, and the punch structure is only embodied in half so as to be convenient for observing the lower die structure. The product portion shown in fig. 2 is omitted and the upper die shows the punch portion for viewing the structural position.

The upper die structure is the same as the structure of a common die and comprises an upper die base, an upper base plate, an upper clamping plate, a stripper plate and a punch 1. The punch 1 is fixed by an upper clamping plate.

The lower die comprises a lower die cutting edge plate 2, a lower backing plate 3, a lower die base 4 and a shearing insert 7.

The lower die cutting plate 2 is positioned on the lower backing plate 3, and the lower die cutting plate and the lower backing plate are locked on the lower die holder 4 through screws and pins.

As shown in fig. 3, the lower die plate 2 has two material discharge holes. Intermediate the two bleed holes is a support 8.

As shown in fig. 4, the support portion 8 has a support base 9 and a connection base 10.

The shape of the support 9 is the same as the shape of the product 5. The connecting table 10 is connected with the lower die cutting plate 2.

As shown in fig. 4, the shearing insert 7 is located in the pocket cavity of the lower die pocket plate 2. The splitting insert 7 is I-shaped and is fixed through an I-shaped clamping groove of the lower die cutting edge plate 2.

The shearing insert 7 is positioned above the connecting table 10 and is tightly attached to the supporting table 9. The height of the shearing insert 7 is lower than that of the support table.

The shearing insert 7 has a cutting edge capable of cutting the scrap 6.

The working principle of the utility model is as follows: first, the punch 1 moves downward, and the scrap 6 at the edge of the extrusion product 5 moves downward. The scrap 6 is then brought into contact with the cutting insert 7, and the scrap 6 is separated into two pieces by the cutting edge. Finally, the waste 6 escapes from the hole.

Claims

1. The utility model provides a stamping die structure that lower mould intensity is strengthened which characterized in that: the lower die comprises a lower die cutting edge plate (2), a lower backing plate (3), a lower die base (4) and at least one shearing insert (7);

the lower die cutting plate (2) is connected with a lower backing plate (3), and the lower backing plate (3) is connected with a lower die base (4);

the lower die cutting plate (2) is provided with at least two material leaking holes, and a supporting part (8) is arranged between the material leaking holes;

the shearing insert (7) is positioned in a knife edge cavity of the lower die knife edge plate (2);

the shearing insert (7) has a cutting edge.

2. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the lower die knife edge plate (2) is provided with two material leaking holes.

3. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the supporting part (8) is provided with a supporting platform (9) and a connecting platform (10), the supporting platform (9) is arranged on the connecting platform (10), and the connecting platform (10) is connected with the lower die knife edge plate (2).

4. The structure of claim 3, wherein the lower die has an enhanced strength, and the structure comprises: the shape of the supporting platform (9) is the same as that of the product (5).

5. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the shearing insert (7) is one.

6. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the splitting and shearing insert (7) is I-shaped, the lower die cutting edge plate (2) is provided with an I-shaped clamping groove, and the splitting and shearing insert (7) is fixed through the I-shaped clamping groove.

7. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the shearing insert (7) is positioned on the connecting table (10) and is tightly attached to the supporting table (9).

8. The structure of a press mold with a lower mold having an enhanced strength as set forth in claim 1, wherein: the height of the shearing insert (7) is lower than that of the support table (9).