CN218903260U

CN218903260U - Replaceable and combined stretching die

Info

Publication number: CN218903260U
Application number: CN202222949383.XU
Authority: CN
Inventors: 吴永鹏; 吴婧仪; 邓敏; 林元春
Original assignee: CRRC Ziyang Co Ltd
Current assignee: CRRC Ziyang Co Ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2023-04-25
Anticipated expiration: 2032-11-07

Abstract

The utility model discloses a replaceable and combined stretching die, and relates to the field of machine manufacturing. The utility model comprises an upper die holder and a lower die holder, wherein the upper die holder is fixedly provided with a female die through bolts, the lower die holder is fixedly provided with a plurality of springs in the vertical direction, a stripper plate is fixedly arranged through the springs, a through hole is formed in the middle of the stripper plate, a vertical mounting seat is arranged in the through hole, one end of the mounting seat is fixedly connected to the lower die holder, the other end of the mounting seat penetrates through the through hole in the middle of the stripper plate, a male die is fixedly connected with the other end of the mounting seat through bolts, a blank holder is sleeved outside the male die, the blank holder is arranged on the stripper plate, and the male die, the blank holder and the female die are matched to form a die. The utility model has strong universality, is suitable for producing different products, has low cost and is convenient for maintenance.

Description

Replaceable and combined stretching die

Technical Field

The utility model relates to the field of machine manufacturing, in particular to a replaceable and combined type stretching die.

Background

In the mechanical manufacturing industry, the design and manufacture of a stretching die are generally that one set of stretching die can only finish the stretching molding of products with the same shape and size, and for stretched products with different shapes and sizes, corresponding stretching dies are required to be manufactured, the dies are various, the waste of die manufacturing materials is large, and the cost is high.

Disclosure of Invention

The utility model aims at: the replaceable and combined type stretching die can be used for manufacturing and replacing corresponding female dies, blank holders and male dies aiming at products with different shapes and specifications and sizes, other parts do not need to be replaced, and the replaceable and combined type stretching die is suitable for producing different products, so that the problem that one set of die in the prior art can only be used for manufacturing one product is solved.

The technical scheme adopted by the utility model is as follows:

the utility model relates to a replaceable and combined type stretching die which comprises an upper die holder and a lower die holder, wherein a female die is fixed on the upper die holder through bolts, a plurality of springs in the vertical direction are fixed on the lower die holder, a stripper plate is fixed on the lower die holder through the springs, a through hole is formed in the middle of the stripper plate, a vertical mounting seat is arranged in the through hole, one end of the mounting seat is fixedly connected to the lower die holder, the other end of the mounting seat penetrates through the through hole in the middle of the stripper plate and is fixedly connected with a male die through bolts, a blank holder is sleeved outside the male die, the blank holder is placed on the stripper plate, and the male die, the blank holder and the female die are matched to form the die.

Furthermore, the upper die holder is provided with a plurality of annular array threaded holes, and the female die is fixedly connected with the upper die holder through annular array bolts.

Furthermore, the mounting seat is provided with a plurality of annular array threaded holes, and the male die is fixed at the top end of the mounting seat through bolts.

Furthermore, the springs are uniformly distributed between the lower die holder and the stripper plate in a plurality of annular arrays.

Further, the bolt is an inner hexagon bolt.

Further, the cross section of the male die is larger than that of the mounting seat, the mounting seat is fixed in the middle of the male die through a bolt, and the stripper plate is matched with the mounting seat and is positioned on the lower side of the male die.

Further, a plurality of guide posts are further arranged between the stripper plate and the lower die base, one end of each guide post is fixed on the lower die base, the other end of each guide post penetrates through the stripper plate, and the stripper plate and the blank holder can move up and down along the guide posts.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

the replaceable and combined type stretching die provided by the utility model has the advantages that the female die, the blank holder and the male die are flexibly installed through the bolts, the corresponding female die, the blank holder and the male die can be manufactured for replacement installation according to the product requirements of different shapes and specifications, the products of different shapes and sizes can be formed without replacing an upper die holder, a stripper plate, a mounting seat and the like, the die universality is high, the die is suitable for producing different products, the manufacturing cost of the die is greatly reduced, and the maintenance work of the female die, the blank holder and the male die is facilitated.

Drawings

For a clearer description of the technical solutions of embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered limiting in scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic view of the overall structure of the present utility model;

fig. 2 is a schematic diagram of the upper die holder of the present utility model.

Reference numerals illustrate: 1-upper die holder, 2-die, 3-bolt, 4-blank holder, 5-terrace die, 6-stripper, 7-mount pad, 8-spring, 9-die holder.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the particular embodiments described herein are illustrative only and are not intended to limit the utility model, i.e., the embodiments described are merely some, but not all, of the embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

It should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The features and capabilities of the present utility model are described in further detail below in connection with examples.

Example 1

As shown in fig. 1, the utility model relates to a replaceable and combined type stretching die, which comprises an upper die holder 1 and a lower die holder 9, wherein a female die 2 is fixed on the upper die holder 1 through bolts 3, a plurality of springs 8 in the vertical direction are fixed on the lower die holder 9, a stripper plate 6 is fixed on the lower die holder 9 through the springs 8, a through hole is formed in the middle of the stripper plate 6, a vertical mounting seat 7 is arranged in the through hole, one end of the mounting seat 7 is fixedly connected to the lower die holder 9, the other end of the mounting seat 7 penetrates through the through hole in the middle of the stripper plate 6, a male die 5 is fixedly connected through bolts 3, a blank holder 4 is sleeved outside the male die 5, the blank holder 4 is placed on the stripper plate 6, and the male die 5, the blank holder 4 and the female die 2 are matched to form the die.

Preferably, the upper die holder 1 is provided with a plurality of annular array threaded holes, and the female die 2 is fixedly connected with the upper die holder 1 through annular array bolts 3.

Preferably, the mounting seat 7 is provided with a plurality of annular array threaded holes, and the male die 5 is fixed at the top end of the mounting seat 7 through bolts 3.

Preferably, the springs 8 are uniformly distributed between the lower die holder 9 and the stripper plate in a plurality of annular arrays.

Preferably, the bolt 3 is a socket head cap bolt.

In the field of machine manufacturing, a product needs to be matched with a die, the die and a matched mounting structure, and only one specification of product can be manufactured, so that the cost is high. The die is divided into three parts, wherein the first part is an upper die holder, the second part is a female die 2, a blank holder 4 and a male die 5, and the second part is a stripper plate 6, an installation seat 7, a spring 8 and a lower die holder 9. In the embodiment, the female die 2 can be flexibly mounted with the upper die holder 1 through a plurality of inner hexagon bolts 3 of the annular array, the male die 5 can be flexibly mounted and connected with the mounting seat 7 through a plurality of inner hexagon bolts 3 of the annular array, the blank holder 4 can be flexibly mounted on the stripper plate 6, the second part of the die 2 is designed and manufactured into a bolt connection structure capable of being flexibly mounted, corresponding female die 2, blank holder 4 and male die 5 can be manufactured for replacement mounting according to product requirements of different shapes and specifications, based on the structure principle of the dies, the stretching dies share the first part and the third part, and products with different shapes and sizes can be molded only by replacing the second part, so that the die has strong universality, is suitable for producing different products, greatly reduces the manufacturing cost of the dies, and is also convenient for maintenance work of the second part.

Embodiments are described below:

s1, preparing a female die 2, a blank holder 4 and a male die 5 according to the shape and size requirements of different products;

s2, during production operation, a female die 2, a blank holder 4 and a male die 5 of corresponding products are selected for matched die installation;

s3, mounting the whole die on a single-column, double-column or four-column press;

s1, placing a product blank on a blank holder 4 for positioning, enabling a press to move downwards, clamping a product by a female die 2 and the blank holder 4, stretching downwards under the action of elasticity of a spring 8, enabling the position of a male die 5 to be unchanged, and enabling the male die to enter a through hole of the female die 2; when the product wraps the male die 5 and reaches the stretch forming position, the working return stroke of the press is upward, and the stripper plate 6 drives the blank holder 4 to move upward together under the action of the resilience force of the spring 8, so that the product stripping is completed, and the product is taken out.

S5, when products with other shapes and specifications are required to be produced, replacing a second part of the matched mould of the corresponding product: the female die 2, the blank holder 4 and the male die 5 can finish the product forming according to the same production operation principle.

Example two

This example is a further illustration of the present utility model.

As shown in fig. 1, in the present embodiment, in a preferred embodiment of the present utility model, the cross section of the male mold 5 is larger than the cross section of the mounting seat 7, the mounting seat 7 is fixed at the middle of the male mold 5 by the bolt 3, and the stripper plate 6 is matched with the mounting seat 7 and located at the lower side of the male mold 5.

In this embodiment, the stripper plate 6 is disposed at the lower side of the male die 5, and under the combined action of the spring 8 and the male die 5, the stripper plate 6 is always abutted against the male die 5, so that the stripper plate 6 is kept horizontal when in an inactive state, the blank holder 4 is placed on the stripper plate 6, the position of the male die 5 at the position of the blank holder 4 is unchanged, and the blank holder 4 is ejected out of the working position by the resilience force of the spring 8 after the press is prevented from working and returning.

Example III

This example is a further illustration of the present utility model.

As shown in fig. 1, in this embodiment, in a preferred embodiment of the present utility model, a plurality of guide posts are further disposed between the stripper plate 6 and the lower die holder 9, one end of each guide post is fixed on the lower die holder 9, the other end of each guide post penetrates through the stripper plate 6, and the stripper plate 6 and the blank holder 4 can move up and down along the guide posts.

In this embodiment, blank holder 4 is located stripper 6, and blank holder 4 cross section is less than stripper 6, and the guide post sets up in the stripper 4 outside, connects stripper 6 and die holder 9, and when stripper 6 and blank holder 4 work, when reciprocate, to it guide, increases whole mould structure's stability.

The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions that are not creatively contemplated by those skilled in the art within the technical scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope defined by the claims.

Claims

1. A replaceable, modular stretching die, characterized in that: including upper die base (1) and die holder (9), upper die base (1) is fixed with die (2) through bolt (3), be fixed with a plurality of vertical direction springs (8) on die holder (9) to be fixed with stripper (6) through spring (8), the through-hole has been seted up at stripper (6) middle part, and is provided with vertical mount pad (7) in the through-hole, the one end fixed connection of mount pad (7) is on die holder (9), the through-hole at stripper (6) middle part is run through to the other end of mount pad (7) to through bolt (3) fixedly connected with terrace die (5), terrace die (5) overcoat is equipped with blank holder (4), blank holder (4) are placed on stripper (6), terrace die (5), blank holder (4) and die (2) match and constitute the mould.

2. A replaceable, modular stretching die as in claim 1, wherein: the die is characterized in that the upper die holder (1) is provided with a plurality of annular array threaded holes, and the female die (2) is fixedly connected with the upper die holder (1) through annular array bolts (3).

3. A replaceable, modular stretching die as in claim 1, wherein: the mounting seat (7) is provided with a plurality of annular array threaded holes, and the male die (5) is fixed at the top end of the mounting seat (7) through bolts (3).

4. A replaceable, modular stretching die as in claim 1, wherein: the springs (8) are uniformly distributed between the lower die holder (9) and the stripper plate in a plurality of annular arrays.

5. A replaceable, modular stretching die as in any one of claims 1-4, wherein: the bolt (3) is an inner hexagon bolt.

6. A replaceable, modular stretching die as in claim 1, wherein: the cross section of the male die (5) is larger than that of the mounting seat (7), the mounting seat (7) is fixed at the middle part of the male die (5) through the bolt (3), and the stripper plate (6) is matched with the mounting seat (7) and is positioned at the lower side of the male die (5).

7. A replaceable, modular stretching die as in claim 1, wherein: a plurality of guide posts are further arranged between the stripper plate (6) and the lower die holder (9), one end of each guide post is fixed on the lower die holder (9), the other end of each guide post penetrates through the stripper plate (6), and the stripper plate (6) and the blank holder (4) can move up and down along the guide posts.