CN218487007U - Stretching blanking stamping die - Google Patents

Abstract

The utility model relates to a drawing blanking stamping die, which comprises an upper die and a lower die, wherein the upper die comprises an upper positioning plate (1), an upper pad foot (2), an upper die seat (3) and an upper pad plate (4) which are arranged in sequence, and a female die (5) and an inner demoulding group (6) are arranged on the bottom surface of the upper pad plate (4); the inner demolding group (6) surrounds the female die (5), and the thickness of the inner demolding group (6) is larger than that of the edge part of the female die (5); the lower die comprises a lower positioning plate (7), lower cushion feet (8), a lower die holder (9) and a lower cushion plate (10) which are sequentially arranged, and a male die (11) and an outer demoulding body (12) are arranged on the top surface of the lower cushion plate (10); the outer demolding (12) surrounds the male die (11), and the thickness of the outer demolding (12) is smaller than that of the edge part of the male die (11). The utility model discloses simple structure, punching press blanking once accomplish, punching press are efficient.

Description

Stretching blanking stamping die

Technical Field

The utility model relates to a tensile blanking stamping die belongs to machining technical field.

Background

The full-feeding combine harvester has the advantages of abundant and practical configuration, durable and reliable quality, and capability of meeting the harvesting requirements of large-scale planting users on high speed, high efficiency and low loss. In the manufacturing and production of the full-feeding combine harvester, a stamping part is related as shown in figure 1, the length of the stamping part exceeds 1.3 meters, the width of the stamping part reaches 0.8 meter, three concave parts are arranged in the middle of the stamping part, and the concave parts and the peripheral parts are transited by inclined surfaces. The production mode of the part is single-process die production of firstly blanking and then stamping, namely, one process is a die, one set of die and a punch is used during blanking, the other set of die and the punch are used during stamping, and material transfer and transportation are involved among the processes. Therefore, punching blanking and punch forming need to occupy a punch press, the process links needing manual participation are more, the blanking forming efficiency is low, the product reject ratio is high, and the automation of punching production is not facilitated; the stamping dies are large in type and quantity, so that the die development and maintenance cost is high.

Disclosure of Invention

An object of the utility model is to overcome the aforesaid not enough, provide a simple structure, tensile blanking one shot forming, the efficient tensile blanking stamping die of punching press.

The purpose of the utility model is realized like this:

a drawing blanking stamping die comprises an upper die and a lower die, wherein the upper die comprises an upper positioning plate, an upper pad foot, an upper die base and an upper base plate which are sequentially arranged, and a female die and an inner demoulding group are arranged on the bottom surface of the upper base plate; the inner demoulding group surrounds the female die, and the thickness of the inner demoulding group is larger than that of the edge of the female die;

the lower die comprises a lower positioning plate, a lower pad foot, a lower die holder and a lower pad plate which are arranged in sequence, and a male die and an external demoulding are arranged on the top surface of the lower pad plate; the male die is surrounded by the external die, and the thickness of the external die is smaller than that of the edge of the male die;

the shapes and positions of the female die and the male die correspond to each other up and down; the inner demoulding group corresponds to the outer demoulding position.

Further, the internal demoulding group comprises a plurality of internal demoulding groups which are connected end to end.

Furthermore, a cushion plate group is arranged at the bottom of the convex part of the convex die.

Furthermore, the thickness difference between the inner demoulding group and the edge of the female die is equal to the thickness difference between the outer demoulding group and the edge of the male die.

Furthermore, the lower backing plate is also provided with a guide post for positioning and guiding between the outer demoulding group and the inner demoulding group.

Furthermore, a nitrogen spring is arranged between the upper die base and the lower die base.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses simple structure takes off module and outer drawing of patterns in setting up respectively all around at die and terrace die, utilizes the difference in height that forms between die, interior drawing of patterns group and terrace die, the outer drawing of patterns, accomplishes and cuts off the blanking process, and stamping forming is accomplished to die and terrace die simultaneously, only needs a punching press to accomplish blanking and stamping forming, improves punching press efficiency by a wide margin.

Drawings

Fig. 1 is a schematic structural view of a harvester punching part according to the present invention.

Fig. 2 is the utility model relates to a drawing blanking stamping die's schematic structure.

Fig. 3 is a bottom view of the upper die of the drawing blanking stamping die of the utility model.

Fig. 4 is the utility model relates to a top view of tensile blanking stamping die's lower mould.

Wherein:

the device comprises an upper positioning plate 1, upper pad feet 2, an upper die holder 3, an upper base plate 4, a female die 5, an inner demoulding group 6, a lower positioning plate 7, lower pad feet 8, a lower die holder 9, a lower base plate 10, a male die 11, an outer demoulding group 12, a base plate group 13, a guide post 14, a nitrogen spring 15 and a guide through hole 16.

Detailed Description

Referring to fig. 1 to 4, the drawing blanking stamping die of the present invention comprises an upper die and a lower die, wherein the upper die comprises an upper positioning plate 1, an upper pad 2, an upper die holder 3 and an upper pad plate 4, which are sequentially arranged, and a female die 5 and an inner demoulding group 6 are installed on the bottom surface of the upper pad plate 4; the inner demolding group 6 surrounds the female die 5, and the thickness of the inner demolding group 6 is larger than that of the edge part of the female die 5; the internal demoulding group 6 comprises a plurality of internal demoulding groups which are connected end to end, and comprises an internal demoulding group A, an internal demoulding group B, an internal demoulding group C, an internal demoulding group D, an internal demoulding group F, an internal demoulding group G, an internal demoulding group H and an internal demoulding group I;

the lower die comprises a lower positioning plate 7, lower cushion feet 8, a lower die holder 9 and a lower cushion plate 10 which are sequentially arranged, and a male die 11 and an outer demoulding 12 are arranged on the top surface of the lower cushion plate 10; the bottom of the convex part of the male die 11 is provided with a cushion plate group 13 for supporting the convex part of the male die 11; the male die 11 is surrounded by the external demoulding 12, and the thickness of the external demoulding 12 is smaller than that of the edge part of the male die 11;

the female die 5 and the male die 11 are vertically corresponding in shape and position; the inner demoulding group 6 corresponds to the outer demoulding group 12; the thickness difference between the inner demoulding group 6 and the edge of the female die 5 is equal to the thickness difference between the outer demoulding group 12 and the edge of the male die 11; the lower backing plate 10 is also provided with a guide post 14 for positioning and guiding between the outer demoulding group 12 and the inner demoulding group 6, wherein the outer demoulding group 12, the inner demoulding group A, the inner demoulding group C and the inner demoulding group F are provided with positioning and guiding through holes 16; and a nitrogen spring 15 is also arranged between the upper die holder 3 and the lower die holder 9.

When the blanking device works, the punch of the punch presses the upper positioning plate 1 of the upper die to drive the upper die to be pressed down integrally, and because the thickness of the inner demolding group 6 is greater than that of the edge part of the female die 5, the inner demolding group 6 contacts the flitch firstly and continues to be pressed down, and the flitch is pressed down and cut off by the inner demolding group 6 on a step formed by the thickness difference of the outer demolding 12 of the lower die and the edge part of the male die 11, so that the blanking process is completed; meanwhile, under the extrusion of the female die 5 and the male die 11, the material plate is pressed into a stamping part as shown in figure 1, and all stamping processes can be completed only by stamping once.

In addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.

Claims (6)

1. The utility model provides a tensile blanking stamping die, contains mould and lower mould, its characterized in that:

the upper die comprises an upper positioning plate (1), upper pad feet (2), an upper die base (3) and an upper base plate (4) which are arranged in sequence, and a female die (5) and an inner demoulding group (6) are arranged on the bottom surface of the upper base plate (4); the inner demolding group (6) surrounds the female die (5), and the thickness of the inner demolding group (6) is larger than that of the edge part of the female die (5);

the lower die comprises a lower positioning plate (7), lower pad feet (8), a lower die holder (9) and a lower backing plate (10) which are arranged in sequence, and a male die (11) and an outer demoulding (12) are arranged on the top surface of the lower backing plate (10); the outer demolding (12) surrounds the male die (11), and the thickness of the outer demolding (12) is smaller than that of the edge part of the male die (11);

the shapes and the positions of the female die (5) and the male die (11) are up-down corresponding; the inner demoulding group (6) corresponds to the outer demoulding group (12).

2. The stretch blanking stamping die according to claim 1, wherein: the inner demolding group (6) comprises a plurality of inner demolding bodies connected end to end.

3. The stretch blanking stamping die of claim 1, wherein: and a cushion plate group (13) is arranged at the bottom of the convex part of the convex die (11).

4. The stretch blanking stamping die according to claim 1, wherein: the thickness difference between the inner demoulding group (6) and the edge of the female die (5) is equal to the thickness difference between the outer demoulding group (12) and the edge of the male die (11).

5. The stretch blanking stamping die of claim 1, wherein: the lower backing plate (10) is also provided with a guide column (14) for positioning and guiding between the outer demoulding group (12) and the inner demoulding group (6).

6. The stretch blanking stamping die of claim 1, wherein: and a nitrogen spring (15) is also arranged between the upper die holder (3) and the lower die holder (9).

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