CN216501934U

CN216501934U - Hardware deep drawing die

Info

Publication number: CN216501934U
Application number: CN202123164987.5U
Authority: CN
Inventors: 龚奎
Original assignee: Tianjin Dongjunincreasingly Precision Mould Co ltd
Current assignee: Tianjin Dongjunincreasingly Precision Mould Co ltd
Priority date: 2021-12-16
Filing date: 2021-12-16
Publication date: 2022-05-13
Anticipated expiration: 2031-12-16

Abstract

The utility model discloses a hardware deep drawing die which comprises a die holder, wherein a lower die is fixedly mounted above the die holder, an upper die is arranged above the lower die, the upper die is fixedly connected with a connecting plate, four support rods which are arranged in a matrix mode are arranged on the outer side of the lower die of the die holder, the upper sides of the support rods penetrate through the connecting plate and are fixedly connected with a top plate, a first hydraulic cylinder is arranged in the middle of the lower side of the top plate, the lower side of the first hydraulic cylinder is fixedly connected with the connecting plate, a female die is arranged in the middle of the upper end of the lower die, a first male die is arranged below the upper die, a guide groove is formed in the middle of the first male die and the upper die, a second male die is arranged in the guide groove, and a second hydraulic cylinder is arranged above the second male die. The die is simple in structure, convenient to operate, good in drawing effect and high in machining precision, and machining quality of hardware parts is effectively improved.

Description

Hardware deep drawing die

Technical Field

The utility model relates to the technical field of hardware machining, in particular to a hardware deep drawing die.

Background

Drawing (also called drawing) is a processing method for making a plate blank or a hollow working piece into an open hollow part by using a drawing die under the pressure action of a press machine. The method is one of basic stamping processes, is widely applied to the production of products in various industrial departments such as automobiles, electronics, daily necessities, instruments, aviation, aerospace and the like, can be used for processing not only rotating body parts, but also box-shaped parts and other thin-wall parts with complex shapes, and can be divided into non-ironing and ironing. In the former, the wall thickness of each part of the part after drawing is basically unchanged compared with the blank before drawing; the wall thickness of the part after the drawing forming is obviously thinner than that of the blank before the drawing, the thinning is required by the product, the part has the characteristics of thick bottom and thin wall, and the hardware drawing die is proposed for improving the processing efficiency of hardware products.

The hardware drawing die in the prior art has some defects, for example, when drawing some hardware, because the overall structure of the hardware is provided with a plurality of layers, when the hardware is subjected to one-step forming drawing, the wall thickness degree of a workpiece can be obviously different, and the processing quality of the workpiece is seriously influenced. Therefore, a hardware drawing die is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a hardware deep drawing type die to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a five metals deep drawing type mould, includes the die holder, die holder top fixed mounting has the lower mould, the lower mould top is equipped with the mould, go up mould top and connecting plate fixed connection, the die holder is located the lower mould outside and is equipped with the bracing piece that four matrixes were arranged, bracing piece top runs through connecting plate and roof fixed connection, roof below middle part is equipped with first pneumatic cylinder, first pneumatic cylinder below and connecting plate fixed connection, the die has been seted up at lower mould upper end middle part, it is equipped with first terrace die to go up the mould below, the guide way has been seted up with last mould middle part to first terrace die, be equipped with the second terrace die in the guide way, second terrace die top is equipped with the second pneumatic cylinder.

Preferably, the die bottom is equipped with the push pedal, the lower mould is located the push pedal below and is equipped with the cavity, be equipped with the backup pad in the cavity, the backup pad top is equipped with the thimble of two symmetries, the thimble top runs through lower mould and push pedal fixed connection, pass through spring and cavity bottom fixed connection in the backup pad below.

Preferably, an electric heating plate is arranged at the lower end of the second male die.

Preferably, the upper die is provided with a cutter outside the first male die, and the lower end of the lower die is provided with a cutter groove matched with the cutter.

Compared with the prior art, the utility model has the beneficial effects that: this kind of five metals deep drawing type mould, the cross-section is located the coplanar under second terrace die and the first terrace die to under the promotion of first pneumatic cylinder, make the purpose of the mutual compound die of lower mould and last mould, and then carry out the first deep-drawing to the work piece, the second pneumatic cylinder is when stretching out and drawing back, the second pneumatic cylinder promotes the second terrace die and moves down, thereby carry out deep-drawing once more to the work piece, carry out the deep-drawing to the work piece through twice, the effectual processingquality to the work piece that has improved avoids the work piece to appear the uneven phenomenon of wall thickness and takes place. The die is simple in structure, convenient to operate, good in drawing effect and high in machining precision, and the machining quality of hardware parts is effectively improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

in the figure: the die comprises a die holder 1, a lower die 2, an upper die 3, a connecting plate 4, a supporting rod 5, a top plate 6, a first hydraulic cylinder 7, a female die 8, a first male die 9, a guide groove 10, a second male die 11, a second hydraulic cylinder 12, an electric heating plate 13, a push plate 14, a cavity 15, a supporting plate 16, an ejector pin 17, a spring 18, a cutter 19 and a cutter groove 20.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a hardware deep drawing die comprises a die holder 1, wherein a lower die 2 is fixedly mounted above the die holder 1, an upper die 3 is arranged above the lower die 2, the upper die 3 is fixedly connected with a connecting plate 4, the die holder 1 is positioned outside the lower die 2 and is provided with four supporting rods 5 arranged in a matrix manner, the upper portion of each supporting rod 5 penetrates through the connecting plate 4 and is fixedly connected with a top plate 6, a first hydraulic cylinder 7 is arranged in the middle of the lower portion of the top plate 6, the lower portion of the first hydraulic cylinder 7 is fixedly connected with the connecting plate 4, when the first hydraulic cylinder 7 stretches, the first hydraulic cylinder 7 pushes the upper die 3 to perform reciprocating motion in the vertical direction through the connecting plate 4, so that the purpose of mutually closing the lower die 2 and the upper die 3 is achieved, the connecting plate 4 is movably connected with the supporting rods 5, the connecting plate 4 can be guided and limited through the supporting rods 5, and the upper die 3 can perform stable reciprocating motion in the vertical direction, and then improve the compound die precision between lower mould 2 and the last mould 3, the die 8 has been seted up at lower mould 2 upper end middle part, it is equipped with first terrace die 9 to go up the mould 3 below, guide way 10 has been seted up at first terrace die 9 and last mould 3 middle part, be equipped with second terrace die 11 in the guide way 10, second terrace die 11 top is equipped with second hydraulic cylinder 12, second hydraulic cylinder 12 is after the shrink is accomplished, and second terrace die 11 lower cross-section and first terrace die 9 lower cross-section lie in the coplanar, thereby under the promotion of first pneumatic cylinder 7, carry out the first deep-drawing to the work piece, second hydraulic cylinder 12 when stretching out and drawing back, second terrace die 11 promotes to move down, thereby carry out the deep-drawing again to the work piece, carry out the deep-drawing to the work piece twice, the effectual processingquality that improves the work piece, avoid the work piece to appear the uneven phenomenon of wall thickness.

Furthermore, a push plate 14 is arranged at the bottom of the female die 8, a cavity 15 is arranged below the lower die 2 and the push plate 14, a support plate 16 is arranged in the cavity 15, two symmetrical ejector pins 17 are arranged above the support plate 16, the ejector pins 17 penetrate through the lower die 2 and are fixedly connected with the push plate 14, the lower portion of the support plate 16 is fixedly connected with the bottom of the cavity 15 through springs 18, when the lower die 2 and the upper die 3 are combined with each other, the second male die 11 presses down the push plate 14, so that the support plate 16 presses down the springs 18 through transmission of the ejector pins 17, and after a workpiece is deep-drawn and molded, the support plate 16 pushes the push plate 14 to move upwards through the ejector pins 17 under the action of elasticity of the springs 18, so that the workpiece is automatically ejected.

Furthermore, an electric heating plate 13 is arranged at the lower end of the second male die 11, and the electric heating plate 13 heats the workpiece, so that the workpiece is more convenient to draw.

Furthermore, a cutter 19 is arranged on the outer side of the first male die 9 of the upper die 3, a cutter groove 20 matched with the cutter 19 is formed in the lower end of the lower die 2, and the cutter 19 can cut off the redundant side edge of the workpiece.

Specifically, in the utility model, when the second hydraulic cylinder 1 contracts, the lower section of the second male die 11 and the lower section of the first male die 9 are positioned in the same plane, so that under the pushing of the first hydraulic cylinder 7, the first hydraulic cylinder 7 pushes the upper die 3 to perform reciprocating motion in the vertical direction through the connecting plate 4, thereby achieving the purpose of mutually closing the lower die 2 and the upper die 3, further performing first drawing on a workpiece, and then when the second hydraulic cylinder 12 extends and retracts, the second hydraulic cylinder 12 pushes the second male die 11 to move downwards, thereby performing secondary drawing on the workpiece, and performing drawing on the workpiece twice, thereby effectively improving the processing quality of the workpiece, avoiding the phenomenon of uneven wall thickness of the workpiece, wherein the connecting plate 4 is movably connected with the supporting rod 5, so that the connecting plate 4 can be guided and limited through the supporting rod 5, and the upper die 3 can perform stable reciprocating motion in the vertical direction, and further improve the mold closing accuracy between the lower mold 2 and the upper mold 3.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a five metals type mould that draws deep, includes die holder (1), its characterized in that: a lower die (2) is fixedly arranged above the die holder (1), an upper die (3) is arranged above the lower die (2), the upper part of the upper die (3) is fixedly connected with a connecting plate (4), the die holder (1) is provided with four support rods (5) which are arranged in a matrix manner and are positioned at the outer side of the lower die (2), the upper part of the supporting rod (5) penetrates through the connecting plate (4) and is fixedly connected with the top plate (6), a first hydraulic cylinder (7) is arranged in the middle of the lower part of the top plate (6), the lower part of the first hydraulic cylinder (7) is fixedly connected with the connecting plate (4), a female die (8) is arranged in the middle of the upper end of the lower die (2), a first male die (9) is arranged below the upper die (3), a guide groove (10) is arranged in the middle of the first male die (9) and the upper die (3), a second male die (11) is arranged in the guide groove (10), and a second hydraulic cylinder (12) is arranged above the second male die (11).

2. The hardware deep drawing type die of claim 1, wherein: die (8) bottom is equipped with push pedal (14), lower mould (2) are located push pedal (14) below and are equipped with cavity (15), be equipped with backup pad (16) in cavity (15), backup pad (16) top is equipped with thimble (17) of two symmetries, thimble (17) top is run through lower mould (2) and push pedal (14) fixed connection, backup pad (16) below is through spring (18) and cavity (15) bottom fixed connection.

3. The hardware deep drawing type die of claim 1, wherein: and an electric heating plate (13) is arranged at the lower end of the second male die (11).

4. The hardware deep drawing type die of claim 1, wherein: the cutting knife (19) is arranged on the outer side of the first male die (9) of the upper die (3), and the knife groove (20) matched with the cutting knife (19) is formed in the lower end of the lower die (2).